mirror of
https://github.com/crystalidea/qt6windows7.git
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240 lines
9.4 KiB
C++
240 lines
9.4 KiB
C++
// Copyright (C) 2018 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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// An example exercising more than a single feature. Enables profiling
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// (resource logging to a file) and inserts debug markers and sets some
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// object names. Can also be used to test MSAA swapchains, swapchain image
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// readback, requesting an sRGB swapchain, and some texture features.
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#define EXAMPLEFW_PREINIT
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#include "../shared/examplefw.h"
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#include "trianglerenderer.h"
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#include "quadrenderer.h"
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#include "texturedcuberenderer.h"
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#include "triangleoncuberenderer.h"
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#include <QFileInfo>
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#include <QFile>
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#include <QElapsedTimer>
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//#define SKIP_PRESENT
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//#define USE_MSAA
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//#define USE_SRGB_SWAPCHAIN
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//#define READBACK_SWAPCHAIN
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//#define NO_VSYNC
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//#define USE_MIN_SWAPCHAIN_BUFFERS
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//#define DECLARE_EXT_CONTENTS
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struct {
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TriangleRenderer triRenderer;
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QuadRenderer quadRenderer;
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TexturedCubeRenderer cubeRenderer;
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TriangleOnCubeRenderer liveTexCubeRenderer;
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bool onScreenOnly = false;
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bool triangleOnly = false;
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QSize lastOutputSize;
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int frameCount = 0;
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QFile profOut;
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QElapsedTimer gpuFrameTimePrintTimer;
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} d;
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void preInit()
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{
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#ifdef SKIP_PRESENT
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endFrameFlags |= QRhi::SkipPresent;
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#endif
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#ifdef USE_MSAA
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sampleCount = 4; // enable 4x MSAA (except for the render-to-texture pass)
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#endif
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#ifdef READBACK_SWAPCHAIN
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scFlags |= QRhiSwapChain::UsedAsTransferSource;
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#endif
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#ifdef USE_SRGB_SWAPCHAIN
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scFlags |= QRhiSwapChain::sRGB;
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#endif
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#ifdef NO_VSYNC
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scFlags |= QRhiSwapChain::NoVSync;
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#endif
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#ifdef USE_MIN_SWAPCHAIN_BUFFERS
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scFlags |= QRhiSwapChain::MinimalBufferCount;
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#endif
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#ifdef DECLARE_EXT_CONTENTS
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beginFrameFlags |= QRhi::ExternalContentsInPass;
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#endif
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// For OpenGL some of these are incorporated into the QSurfaceFormat by
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// examplefw.h after returning from here as that is out of the RHI's control.
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}
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void Window::customInit()
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{
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d.triRenderer.setRhi(m_r);
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d.triRenderer.setSampleCount(sampleCount);
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d.triRenderer.initResources(m_rp);
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if (!d.triangleOnly) {
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d.triRenderer.setTranslation(QVector3D(0, 0.5f, 0));
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d.quadRenderer.setRhi(m_r);
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d.quadRenderer.setSampleCount(sampleCount);
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d.quadRenderer.setPipeline(d.triRenderer.pipeline());
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d.quadRenderer.initResources(m_rp);
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d.quadRenderer.setTranslation(QVector3D(1.5f, -0.5f, 0));
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d.cubeRenderer.setRhi(m_r);
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d.cubeRenderer.setSampleCount(sampleCount);
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d.cubeRenderer.initResources(m_rp);
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d.cubeRenderer.setTranslation(QVector3D(0, -0.5f, 0));
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}
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if (!d.onScreenOnly) {
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d.liveTexCubeRenderer.setRhi(m_r);
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d.liveTexCubeRenderer.setSampleCount(sampleCount);
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d.liveTexCubeRenderer.initResources(m_rp);
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d.liveTexCubeRenderer.setTranslation(QVector3D(-2.0f, 0, 0));
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}
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// Check some features/limits.
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qDebug("isFeatureSupported(MultisampleTexture): %d", m_r->isFeatureSupported(QRhi::MultisampleTexture));
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qDebug("isFeatureSupported(MultisampleRenderBuffer): %d", m_r->isFeatureSupported(QRhi::MultisampleRenderBuffer));
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qDebug("isFeatureSupported(DebugMarkers): %d", m_r->isFeatureSupported(QRhi::DebugMarkers));
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qDebug("isFeatureSupported(Timestamps): %d", m_r->isFeatureSupported(QRhi::Timestamps));
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qDebug("isFeatureSupported(Instancing): %d", m_r->isFeatureSupported(QRhi::Instancing));
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qDebug("isFeatureSupported(CustomInstanceStepRate): %d", m_r->isFeatureSupported(QRhi::CustomInstanceStepRate));
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qDebug("isFeatureSupported(PrimitiveRestart): %d", m_r->isFeatureSupported(QRhi::PrimitiveRestart));
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qDebug("isFeatureSupported(NonDynamicUniformBuffers): %d", m_r->isFeatureSupported(QRhi::NonDynamicUniformBuffers));
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qDebug("isFeatureSupported(NonFourAlignedEffectiveIndexBufferOffset): %d", m_r->isFeatureSupported(QRhi::NonFourAlignedEffectiveIndexBufferOffset));
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qDebug("isFeatureSupported(NPOTTextureRepeat): %d", m_r->isFeatureSupported(QRhi::NPOTTextureRepeat));
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qDebug("isFeatureSupported(RedOrAlpha8IsRed): %d", m_r->isFeatureSupported(QRhi::RedOrAlpha8IsRed));
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qDebug("isFeatureSupported(ElementIndexUint): %d", m_r->isFeatureSupported(QRhi::ElementIndexUint));
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qDebug("isFeatureSupported(Compute): %d", m_r->isFeatureSupported(QRhi::Compute));
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qDebug("isFeatureSupported(WideLines): %d", m_r->isFeatureSupported(QRhi::WideLines));
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qDebug("isFeatureSupported(VertexShaderPointSize): %d", m_r->isFeatureSupported(QRhi::VertexShaderPointSize));
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qDebug("isFeatureSupported(BaseVertex): %d", m_r->isFeatureSupported(QRhi::BaseVertex));
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qDebug("isFeatureSupported(BaseInstance): %d", m_r->isFeatureSupported(QRhi::BaseInstance));
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qDebug("isFeatureSupported(PipelineCacheDataLoadSave): %d", m_r->isFeatureSupported(QRhi::PipelineCacheDataLoadSave));
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qDebug("Min 2D texture width/height: %d", m_r->resourceLimit(QRhi::TextureSizeMin));
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qDebug("Max 2D texture width/height: %d", m_r->resourceLimit(QRhi::TextureSizeMax));
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qDebug("Max color attachment count: %d", m_r->resourceLimit(QRhi::MaxColorAttachments));
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qDebug("MaxThreadGroupsPerDimension: %d", m_r->resourceLimit(QRhi::MaxThreadGroupsPerDimension));
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qDebug("MaxThreadsPerThreadGroup: %d", m_r->resourceLimit(QRhi::MaxThreadsPerThreadGroup));
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qDebug("MaxThreadGroupX: %d", m_r->resourceLimit(QRhi::MaxThreadGroupX));
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qDebug("MaxThreadGroupY: %d", m_r->resourceLimit(QRhi::MaxThreadGroupY));
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qDebug("MaxThreadGroupZ: %d", m_r->resourceLimit(QRhi::MaxThreadGroupZ));
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qDebug("TextureArraySizeMax: %d", m_r->resourceLimit(QRhi::TextureArraySizeMax));
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qDebug("MaxUniformBufferRange: %d", m_r->resourceLimit(QRhi::MaxUniformBufferRange));
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qDebug("MaxVertexInputs: %d", m_r->resourceLimit(QRhi::MaxVertexInputs));
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qDebug("MaxVertexOutputs: %d", m_r->resourceLimit(QRhi::MaxVertexOutputs));
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// With Vulkan at least we should see some details from the memory allocator.
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qDebug() << m_r->statistics();
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// Every two seconds try printing last known gpu frame time.
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d.gpuFrameTimePrintTimer.start();
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}
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void Window::customRelease()
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{
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d.triRenderer.releaseResources();
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if (!d.triangleOnly) {
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d.quadRenderer.releaseResources();
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d.cubeRenderer.releaseResources();
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}
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if (!d.onScreenOnly)
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d.liveTexCubeRenderer.releaseResources();
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}
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void Window::customRender()
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{
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const QSize outputSize = m_sc->currentPixelSize();
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QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
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if (d.gpuFrameTimePrintTimer.elapsed() > 2000) {
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qDebug() << "Last completed GPU frame time" << cb->lastCompletedGpuTime() << "seconds";
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d.gpuFrameTimePrintTimer.restart();
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}
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if (outputSize != d.lastOutputSize) {
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d.triRenderer.resize(outputSize);
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if (!d.triangleOnly) {
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d.quadRenderer.resize(outputSize);
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d.cubeRenderer.resize(outputSize);
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}
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if (!d.onScreenOnly)
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d.liveTexCubeRenderer.resize(outputSize);
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d.lastOutputSize = outputSize;
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}
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if (!d.onScreenOnly) {
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cb->debugMarkBegin("Offscreen triangle pass");
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d.liveTexCubeRenderer.queueOffscreenPass(cb);
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cb->debugMarkEnd();
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}
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QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
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d.triRenderer.queueResourceUpdates(u);
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if (!d.triangleOnly) {
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d.quadRenderer.queueResourceUpdates(u);
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d.cubeRenderer.queueResourceUpdates(u);
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}
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if (!d.onScreenOnly)
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d.liveTexCubeRenderer.queueResourceUpdates(u);
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cb->beginPass(m_sc->currentFrameRenderTarget(), m_clearColor, { 1.0f, 0 }, u);
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cb->debugMarkBegin(QByteArrayLiteral("Triangle"));
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d.triRenderer.queueDraw(cb, outputSize);
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cb->debugMarkEnd();
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if (!d.triangleOnly) {
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cb->debugMarkMsg(QByteArrayLiteral("More stuff"));
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cb->debugMarkBegin(QByteArrayLiteral("Quad"));
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d.quadRenderer.queueDraw(cb, outputSize);
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cb->debugMarkEnd();
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cb->debugMarkBegin(QByteArrayLiteral("Cube"));
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d.cubeRenderer.queueDraw(cb, outputSize);
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cb->debugMarkEnd();
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}
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if (!d.onScreenOnly) {
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cb->debugMarkMsg(QByteArrayLiteral("Even more stuff"));
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cb->debugMarkBegin(QByteArrayLiteral("Cube with offscreen triangle"));
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d.liveTexCubeRenderer.queueDraw(cb, outputSize);
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cb->debugMarkEnd();
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}
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QRhiResourceUpdateBatch *passEndUpdates = nullptr;
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#ifdef READBACK_SWAPCHAIN
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passEndUpdates = m_r->nextResourceUpdateBatch();
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QRhiReadbackDescription rb; // no texture given -> backbuffer
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QRhiReadbackResult *rbResult = new QRhiReadbackResult;
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int frameNo = d.frameCount;
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rbResult->completed = [this, rbResult, frameNo] {
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{
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QImage::Format fmt = rbResult->format == QRhiTexture::BGRA8 ? QImage::Format_ARGB32_Premultiplied
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: QImage::Format_RGBA8888_Premultiplied;
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const uchar *p = reinterpret_cast<const uchar *>(rbResult->data.constData());
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QImage image(p, rbResult->pixelSize.width(), rbResult->pixelSize.height(), fmt);
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QString fn = QString::asprintf("frame%d.png", frameNo);
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fn = QFileInfo(fn).absoluteFilePath();
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qDebug("Saving into %s", qPrintable(fn));
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if (m_r->isYUpInFramebuffer())
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image.mirrored().save(fn);
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else
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image.save(fn);
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}
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delete rbResult;
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};
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passEndUpdates->readBackTexture(rb, rbResult);
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#endif
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cb->endPass(passEndUpdates);
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d.frameCount += 1;
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}
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