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qt6windows7/tests/auto/gui/image/qimage/tst_qimage.cpp
kleuter 7018d9e6c8 6.5.3 clean
2023-11-01 18:02:52 +01:00

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <QBuffer>
#include <QMatrix4x4>
#include <qimage.h>
#include <qimagereader.h>
#include <qlist.h>
#include <qset.h>
#include <qtransform.h>
#include <qrandom.h>
#include <stdio.h>
#include <qpainter.h>
#include <private/qimage_p.h>
#include <private/qdrawhelper_p.h>
#ifdef Q_OS_DARWIN
#include <CoreGraphics/CoreGraphics.h>
#endif
#if defined(Q_OS_WIN)
# include <qt_windows.h>
#endif
Q_DECLARE_METATYPE(QImage::Format)
Q_DECLARE_METATYPE(Qt::GlobalColor)
class tst_QImage : public QObject
{
Q_OBJECT
public:
tst_QImage();
private slots:
void initTestCase();
void swap();
void create();
void createInvalidXPM();
void createFromUChar();
void formatHandlersInput_data();
void formatHandlersInput();
void setAlphaChannel_data();
void setAlphaChannel();
void convertToFormat_data();
void convertToFormat();
void convertToFormatWithColorTable();
void convertToFormatRgb888ToRGB32();
void createAlphaMask_data();
void createAlphaMask();
#ifndef QT_NO_IMAGE_HEURISTIC_MASK
void createHeuristicMask();
#endif
void dotsPerMeterZero();
void dotsPerMeterAndDpi();
void convertToFormatPreserveDotsPrMeter();
void convertToFormatPreserveText();
void rotate_data();
void rotate();
void rotateBigImage();
void copy();
void load();
void loadFromData();
#if !defined(QT_NO_DATASTREAM)
void loadFromDataStream();
#endif
void setPixel_data();
void setPixel();
void setPixelWithAlpha_data();
void setPixelWithAlpha();
void setPixelColorWithAlpha_data();
void setPixelColorWithAlpha();
void defaultColorTable_data();
void defaultColorTable();
void setColorCount();
void setColor();
void rasterClipping();
void pointOverloads();
void destructor();
void cacheKey();
void smoothScale();
void smoothScale2_data();
void smoothScale2();
void smoothScale3_data();
void smoothScale3();
void smoothScale4_data();
void smoothScale4();
void smoothScaleBig();
void smoothScaleAlpha();
void smoothScaleFormats_data();
void smoothScaleFormats();
void transformed_data();
void transformed();
void transformed2();
void scaled();
void paintEngine();
void setAlphaChannelWhilePainting();
void smoothScaledSubImage();
void nullSize_data();
void nullSize();
void premultipliedAlphaConsistency();
void compareIndexed();
void fillColor_data();
void fillColor();
void fillColorWithAlpha_data();
void fillColorWithAlpha();
void fillRGB888();
void fillPixel_data();
void fillPixel();
void rgbSwapped_data();
void rgbSwapped();
void mirrored_data();
void mirrored();
void inplaceRgbSwapped_data();
void inplaceRgbSwapped();
void inplaceMirrored_data();
void inplaceMirrored();
void inplaceMirroredOdd_data();
void inplaceMirroredOdd();
void inplaceRgbMirrored();
void genericRgbConversion_data();
void genericRgbConversion();
void inplaceRgbConversion_data();
void inplaceRgbConversion();
void largeGenericRgbConversion_data();
void largeGenericRgbConversion();
void largeInplaceRgbConversion_data();
void largeInplaceRgbConversion();
void deepCopyWhenPaintingActive();
void scaled_QTBUG19157();
void convertOverUnPreMul();
void scaled_QTBUG35972();
void convertToPixelFormat();
void convertToImageFormat_data();
void convertToImageFormat();
void invertPixelsRGB_data();
void invertPixelsRGB();
void invertPixelsIndexed();
void exifOrientation_data();
void exifOrientation();
void exif_QTBUG45865();
void exifInvalidData_data();
void exifInvalidData();
void exifReadComments();
void cleanupFunctions();
void devicePixelRatio();
void deviceIndependentSize();
void rgb30Unpremul();
void rgb30Repremul_data();
void rgb30Repremul();
void metadataPassthrough();
void pixelColor();
void pixel();
void ditherGradient_data();
void ditherGradient();
void reinterpretAsFormat_data();
void reinterpretAsFormat();
void reinterpretAsFormat2();
void complexTransform8bit();
#ifdef Q_OS_DARWIN
void toCGImage_data();
void toCGImage();
#endif
void hugeQImage();
void convertColorTable();
void wideImage();
void largeFillScale();
void largeRasterScale();
void metadataChangeWithReadOnlyPixels();
#if defined(Q_OS_WIN)
void toWinHBITMAP_data();
void toWinHBITMAP();
void fromMonoHBITMAP();
#endif // Q_OS_WIN
private:
const QString m_prefix;
};
static QLatin1String formatToString(QImage::Format format)
{
switch (format) {
case QImage::Format_Invalid:
return QLatin1String("Invalid");
case QImage::Format_Mono:
return QLatin1String("Mono");
case QImage::Format_MonoLSB:
return QLatin1String("MonoLSB");
case QImage::Format_Indexed8:
return QLatin1String("Indexed8");
case QImage::Format_RGB32:
return QLatin1String("RGB32");
case QImage::Format_ARGB32:
return QLatin1String("ARGB32");
case QImage::Format_ARGB32_Premultiplied:
return QLatin1String("ARGB32pm");
case QImage::Format_RGB16:
return QLatin1String("RGB16");
case QImage::Format_ARGB8565_Premultiplied:
return QLatin1String("ARGB8565pm");
case QImage::Format_RGB666:
return QLatin1String("RGB666");
case QImage::Format_ARGB6666_Premultiplied:
return QLatin1String("ARGB6666pm");
case QImage::Format_RGB555:
return QLatin1String("RGB555");
case QImage::Format_ARGB8555_Premultiplied:
return QLatin1String("ARGB8555pm");
case QImage::Format_RGB888:
return QLatin1String("RGB888");
case QImage::Format_RGB444:
return QLatin1String("RGB444");
case QImage::Format_ARGB4444_Premultiplied:
return QLatin1String("ARGB4444pm");
case QImage::Format_RGBX8888:
return QLatin1String("RGBx88888");
case QImage::Format_RGBA8888:
return QLatin1String("RGBA88888");
case QImage::Format_RGBA8888_Premultiplied:
return QLatin1String("RGBA88888pm");
case QImage::Format_BGR30:
return QLatin1String("BGR30");
case QImage::Format_A2BGR30_Premultiplied:
return QLatin1String("A2BGR30pm");
case QImage::Format_RGB30:
return QLatin1String("RGB30");
case QImage::Format_A2RGB30_Premultiplied:
return QLatin1String("A2RGB30pm");
case QImage::Format_Alpha8:
return QLatin1String("Alpha8");
case QImage::Format_Grayscale8:
return QLatin1String("Grayscale8");
case QImage::Format_RGBX64:
return QLatin1String("RGBx64");
case QImage::Format_RGBA64:
return QLatin1String("RGBA64");
case QImage::Format_RGBA64_Premultiplied:
return QLatin1String("RGBA64pm");
case QImage::Format_Grayscale16:
return QLatin1String("Grayscale16");
case QImage::Format_BGR888:
return QLatin1String("BGR888");
case QImage::Format_RGBX16FPx4:
return QLatin1String("RGBx16FPx4");
case QImage::Format_RGBA16FPx4:
return QLatin1String("RGBA16FPx4");
case QImage::Format_RGBA16FPx4_Premultiplied:
return QLatin1String("RGBA16FPx4pm");
case QImage::Format_RGBX32FPx4:
return QLatin1String("RGBx32FPx4");
case QImage::Format_RGBA32FPx4:
return QLatin1String("RGBA32FPx4");
case QImage::Format_RGBA32FPx4_Premultiplied:
return QLatin1String("RGBA32FPx4pm");
default:
break;
};
Q_UNREACHABLE();
qWarning("Unhandled image format");
return QLatin1String("unknown");
}
tst_QImage::tst_QImage()
: m_prefix(QFINDTESTDATA("images/"))
{
}
void tst_QImage::initTestCase()
{
QVERIFY(!m_prefix.isEmpty());
}
void tst_QImage::swap()
{
QImage i1( 16, 16, QImage::Format_RGB32 ), i2( 32, 32, QImage::Format_RGB32 );
i1.fill( Qt::white );
i2.fill( Qt::black );
const qint64 i1k = i1.cacheKey();
const qint64 i2k = i2.cacheKey();
i1.swap(i2);
QCOMPARE(i1.cacheKey(), i2k);
QCOMPARE(i1.size(), QSize(32,32));
QCOMPARE(i2.cacheKey(), i1k);
QCOMPARE(i2.size(), QSize(16,16));
}
// Test if QImage (or any functions called from QImage) throws an
// exception when creating an extremely large image.
// QImage::create() should return "false" in this case.
void tst_QImage::create()
{
bool cr = true;
QT_TRY {
QImage image(700000000, 70000000, QImage::Format_Indexed8);
image.setColorCount(256);
cr = !image.isNull();
} QT_CATCH (...) {
}
QVERIFY( !cr );
}
void tst_QImage::createInvalidXPM()
{
QTest::ignoreMessage(QtWarningMsg, "QImage::QImage(), XPM is not supported");
const char *xpm[] = {""};
QImage invalidXPM(xpm);
QVERIFY(invalidXPM.isNull());
}
void tst_QImage::createFromUChar()
{
uint data[] = { 0xff010101U,
0xff020202U,
0xff030303U,
0xff040404U };
// When the data is const, nothing you do to the image will change the source data.
QImage i1((const uchar*)data, 2, 2, 8, QImage::Format_RGB32);
QCOMPARE(i1.pixel(0,0), 0xFF010101U);
QCOMPARE(i1.pixel(1,0), 0xFF020202U);
QCOMPARE(i1.pixel(0,1), 0xFF030303U);
QCOMPARE(i1.pixel(1,1), 0xFF040404U);
{
QImage i(i1);
i.setPixel(0,0,5);
}
QCOMPARE(i1.pixel(0,0), 0xFF010101U);
QCOMPARE(*(QRgb*)data, 0xFF010101U);
*((QRgb*)i1.bits()) = 0xFF070707U;
QCOMPARE(i1.pixel(0,0), 0xFF070707U);
QCOMPARE(*(QRgb*)data, 0xFF010101U);
// Changing copies should not change the original image or data.
{
QImage i(i1);
i.setPixel(0,0,5);
QCOMPARE(*(QRgb*)data, 0xFF010101U);
i1.setPixel(0,0,9);
QCOMPARE(i1.pixel(0,0), 0xFF000009U);
QCOMPARE(i.pixel(0,0), 0xFF000005U);
}
QCOMPARE(i1.pixel(0,0), 0xFF000009U);
// When the data is non-const, nothing you do to copies of the image will change the source data,
// but changing the image (here via bits()) will change the source data.
QImage i2((uchar*)data, 2, 2, 8, QImage::Format_RGB32);
QCOMPARE(i2.pixel(0,0), 0xFF010101U);
QCOMPARE(i2.pixel(1,0), 0xFF020202U);
QCOMPARE(i2.pixel(0,1), 0xFF030303U);
QCOMPARE(i2.pixel(1,1), 0xFF040404U);
{
QImage i(i2);
i.setPixel(0,0,5);
}
QCOMPARE(i2.pixel(0,0), 0xFF010101U);
QCOMPARE(*(QRgb*)data, 0xFF010101U);
*((QRgb*)i2.bits()) = 0xFF070707U;
QCOMPARE(i2.pixel(0,0), 0xFF070707U);
QCOMPARE(*(QRgb*)data, 0xFF070707U);
// Changing the data will change the image in either case.
QImage i3((uchar*)data, 2, 2, 8, QImage::Format_RGB32);
QImage i4((const uchar*)data, 2, 2, 8, QImage::Format_RGB32);
*(QRgb*)data = 0xFF060606U;
QCOMPARE(i3.pixel(0,0), 0xFF060606U);
QCOMPARE(i4.pixel(0,0), 0xFF060606U);
}
void tst_QImage::formatHandlersInput_data()
{
QTest::addColumn<QString>("testFormat");
QTest::addColumn<QString>("testFile");
// add a new line here when a file is added
QTest::newRow("ICO") << "ICO" << m_prefix + "image.ico";
QTest::newRow("PNG") << "PNG" << m_prefix + "image.png";
QTest::newRow("GIF") << "GIF" << m_prefix + "image.gif";
QTest::newRow("BMP") << "BMP" << m_prefix + "image.bmp";
QTest::newRow("JPEG") << "JPEG" << m_prefix + "image.jpg";
QTest::newRow("PBM") << "PBM" << m_prefix + "image.pbm";
QTest::newRow("PGM") << "PGM" << m_prefix + "image.pgm";
QTest::newRow("PPM") << "PPM" << m_prefix + "image.ppm";
QTest::newRow("XBM") << "XBM" << m_prefix + "image.xbm";
QTest::newRow("XPM") << "XPM" << m_prefix + "image.xpm";
}
void tst_QImage::formatHandlersInput()
{
QFETCH(QString, testFormat);
QFETCH(QString, testFile);
QList<QByteArray> formats = QImageReader::supportedImageFormats();
// qDebug("Image input formats : %s", formats.join(" | ").latin1());
bool formatSupported = false;
for (QList<QByteArray>::Iterator it = formats.begin(); it != formats.end(); ++it) {
if (*it == testFormat.toLower().toUtf8()) {
formatSupported = true;
break;
}
}
if (formatSupported) {
// qDebug(QImage::imageFormat(testFile));
QCOMPARE(testFormat.toLatin1().toLower(), QImageReader::imageFormat(testFile));
} else {
QString msg = "Format not supported : ";
QSKIP(QString(msg + testFormat).toLatin1());
}
}
void tst_QImage::setAlphaChannel_data()
{
QTest::addColumn<int>("red");
QTest::addColumn<int>("green");
QTest::addColumn<int>("blue");
QTest::addColumn<int>("alpha");
QTest::addColumn<bool>("gray");
QTest::newRow("red at 0%, gray") << 255 << 0 << 0 << 0 << true;
QTest::newRow("red at 25%, gray") << 255 << 0 << 0 << 63 << true;
QTest::newRow("red at 50%, gray") << 255 << 0 << 0 << 127 << true;
QTest::newRow("red at 100%, gray") << 255 << 0 << 0 << 191 << true;
QTest::newRow("red at 0%, 32bit") << 255 << 0 << 0 << 0 << false;
QTest::newRow("red at 25%, 32bit") << 255 << 0 << 0 << 63 << false;
QTest::newRow("red at 50%, 32bit") << 255 << 0 << 0 << 127 << false;
QTest::newRow("red at 100%, 32bit") << 255 << 0 << 0 << 191 << false;
QTest::newRow("green at 0%, gray") << 0 << 255 << 0 << 0 << true;
QTest::newRow("green at 25%, gray") << 0 << 255 << 0 << 63 << true;
QTest::newRow("green at 50%, gray") << 0 << 255 << 0 << 127 << true;
QTest::newRow("green at 100%, gray") << 0 << 255 << 0 << 191 << true;
QTest::newRow("green at 0%, 32bit") << 0 << 255 << 0 << 0 << false;
QTest::newRow("green at 25%, 32bit") << 0 << 255 << 0 << 63 << false;
QTest::newRow("green at 50%, 32bit") << 0 << 255 << 0 << 127 << false;
QTest::newRow("green at 100%, 32bit") << 0 << 255 << 0 << 191 << false;
QTest::newRow("blue at 0%, gray") << 0 << 0 << 255 << 0 << true;
QTest::newRow("blue at 25%, gray") << 0 << 0 << 255 << 63 << true;
QTest::newRow("blue at 50%, gray") << 0 << 0 << 255 << 127 << true;
QTest::newRow("blue at 100%, gray") << 0 << 0 << 255 << 191 << true;
QTest::newRow("blue at 0%, 32bit") << 0 << 0 << 255 << 0 << false;
QTest::newRow("blue at 25%, 32bit") << 0 << 0 << 255 << 63 << false;
QTest::newRow("blue at 50%, 32bit") << 0 << 0 << 255 << 127 << false;
QTest::newRow("blue at 100%, 32bit") << 0 << 0 << 255 << 191 << false;
}
void tst_QImage::setAlphaChannel()
{
QFETCH(int, red);
QFETCH(int, green);
QFETCH(int, blue);
QFETCH(int, alpha);
QFETCH(bool, gray);
int width = 100;
int height = 100;
QImage image(width, height, QImage::Format_RGB32);
image.fill(qRgb(red, green, blue));
// Create the alpha channel
QImage alphaChannel;
if (gray) {
alphaChannel = QImage(width, height, QImage::Format_Indexed8);
alphaChannel.setColorCount(256);
for (int i=0; i<256; ++i)
alphaChannel.setColor(i, qRgb(i, i, i));
alphaChannel.fill(alpha);
} else {
alphaChannel = QImage(width, height, QImage::Format_ARGB32);
alphaChannel.fill(qRgb(alpha, alpha, alpha));
}
image.setAlphaChannel(alphaChannel);
image = image.convertToFormat(QImage::Format_ARGB32);
QCOMPARE(image.format(), QImage::Format_ARGB32);
// alpha of 0 becomes black at a=0 due to premultiplication
QRgb pixel = alpha == 0 ? 0 : qRgba(red, green, blue, alpha);
bool allPixelsOK = true;
for (int y=0; y<height; ++y) {
for (int x=0; x<width; ++x) {
allPixelsOK &= image.pixel(x, y) == pixel;
}
}
QVERIFY(allPixelsOK);
}
void tst_QImage::convertToFormat_data()
{
QTest::addColumn<int>("inFormat");
QTest::addColumn<uint>("inPixel");
QTest::addColumn<int>("resFormat");
QTest::addColumn<uint>("resPixel");
QTest::newRow("red rgb32 -> argb32") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb32 -> argb32") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb32 -> argb32") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("red rgb32 -> rgb16") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_RGB16) << 0xffff0000;
QTest::newRow("green rgb32 -> rgb16") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_RGB16) << 0xff00ff00;
QTest::newRow("blue rgb32 -> rgb16") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_RGB16) << 0xff0000ff;
QTest::newRow("funky rgb32 -> rgb16") << int(QImage::Format_RGB32) << 0xfff0c080
<< int(QImage::Format_RGB16) << 0xfff7c384;
QTest::newRow("red rgb32 -> argb32_pm") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_ARGB32_Premultiplied) << 0xffff0000;
QTest::newRow("green rgb32 -> argb32_pm") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_ARGB32_Premultiplied) <<0xff00ff00;
QTest::newRow("blue rgb32 -> argb32_pm") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_ARGB32_Premultiplied) << 0xff0000ff;
QTest::newRow("semired argb32 -> pm") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u;
QTest::newRow("semigreen argb32 -> pm") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u;
QTest::newRow("semiblue argb32 -> pm") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu;
QTest::newRow("semiwhite argb32 -> pm") << int(QImage::Format_ARGB32) << 0x7fffffffu
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu;
QTest::newRow("semiblack argb32 -> pm") << int(QImage::Format_ARGB32) << 0x7f000000u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u;
QTest::newRow("semired pm -> argb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_ARGB32) << 0x7fff0000u;
QTest::newRow("semigreen pm -> argb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_ARGB32) << 0x7f00ff00u;
QTest::newRow("semiblue pm -> argb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_ARGB32) << 0x7f0000ffu;
QTest::newRow("semiwhite pm -> argb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_ARGB32) << 0x7fffffffu;
QTest::newRow("semiblack pm -> argb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_ARGB32) << 0x7f000000u;
QTest::newRow("semired pm -> rgb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_RGB32) << 0xffff0000u;
QTest::newRow("semigreen pm -> rgb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_RGB32) << 0xff00ff00u;
QTest::newRow("semiblue pm -> rgb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_RGB32) << 0xff0000ffu;
QTest::newRow("semiwhite pm -> rgb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_RGB32) << 0xffffffffu;
QTest::newRow("semiblack pm -> rgb32") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_RGB32) << 0xff000000u;
QTest::newRow("semired argb32 -> rgb32") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_RGB32) << 0xffff0000u;
QTest::newRow("semigreen argb32 -> rgb32") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_RGB32) << 0xff00ff00u;
QTest::newRow("semiblue argb32 -> rgb32") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_RGB32) << 0xff0000ffu;
QTest::newRow("semiwhite argb -> rgb32") << int(QImage::Format_ARGB32) << 0x7fffffffu
<< int(QImage::Format_RGB32) << 0xffffffffu;
QTest::newRow("semiblack argb -> rgb32") << int(QImage::Format_ARGB32) << 0x7f000000u
<< int(QImage::Format_RGB32) << 0xff000000u;
QTest::newRow("black mono -> rgb32") << int(QImage::Format_Mono) << 0x00000000u
<< int(QImage::Format_RGB32) << 0xff000000u;
QTest::newRow("white mono -> rgb32") << int(QImage::Format_Mono) << 0x00000001u
<< int(QImage::Format_RGB32) << 0xffffffffu;
QTest::newRow("red rgb16 -> argb32") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb16 -> argb32") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb16 -> argb32") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("red rgb16 -> rgb16") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_RGB16) << 0xffff0000;
QTest::newRow("green rgb16 -> rgb16") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_RGB16) << 0xff00ff00;
QTest::newRow("blue rgb16 -> rgb16") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_RGB16) << 0xff0000ff;
QTest::newRow("semired argb32 -> rgb16") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_RGB16) << 0xffff0000;
QTest::newRow("semigreen argb32 -> rgb16") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_RGB16) << 0xff00ff00;
QTest::newRow("semiblue argb32 -> rgb16") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_RGB16) << 0xff0000ff;
QTest::newRow("semired pm -> rgb16") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_RGB16) << 0xffff0000u;
QTest::newRow("semigreen pm -> rgb16") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_RGB16) << 0xff00ff00u;
QTest::newRow("semiblue pm -> rgb16") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_RGB16) << 0xff0000ffu;
QTest::newRow("semiwhite pm -> rgb16") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_RGB16) << 0xffffffffu;
QTest::newRow("semiblack pm -> rgb16") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_RGB16) << 0xff000000u;
QTest::newRow("mono -> mono lsb") << int(QImage::Format_Mono) << 1u
<< int(QImage::Format_MonoLSB) << 0xffffffffu;
QTest::newRow("mono lsb -> mono") << int(QImage::Format_MonoLSB) << 1u
<< int(QImage::Format_Mono) << 0xffffffffu;
QTest::newRow("red rgb32 -> rgb666") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_RGB666) << 0xffff0000;
QTest::newRow("green rgb32 -> rgb666") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_RGB666) << 0xff00ff00;
QTest::newRow("blue rgb32 -> rgb666") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_RGB666) << 0xff0000ff;
QTest::newRow("red rgb16 -> rgb666") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_RGB666) << 0xffff0000;
QTest::newRow("green rgb16 -> rgb666") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_RGB666) << 0xff00ff00;
QTest::newRow("blue rgb16 -> rgb666") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_RGB666) << 0xff0000ff;
QTest::newRow("red rgb32 -> rgb15") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_RGB555) << 0xffff0000;
QTest::newRow("green rgb32 -> rgb15") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_RGB555) << 0xff00ff00;
QTest::newRow("blue rgb32 -> rgb15") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_RGB555) << 0xff0000ff;
QTest::newRow("funky rgb32 -> rgb15") << int(QImage::Format_RGB32) << 0xfff0c080
<< int(QImage::Format_RGB555) << 0xfff7c684;
QTest::newRow("red rgb16 -> rgb15") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_RGB555) << 0xffff0000;
QTest::newRow("green rgb16 -> rgb15") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_RGB555) << 0xff00ff00;
QTest::newRow("blue rgb16 -> rgb15") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_RGB555) << 0xff0000ff;
QTest::newRow("funky rgb16 -> rgb15") << int(QImage::Format_RGB16) << 0xfff0c080
<< int(QImage::Format_RGB555) << 0xfff7c684;
QTest::newRow("red rgb32 -> argb8565") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xffff0000;
QTest::newRow("green rgb32 -> argb8565") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xff00ff00;
QTest::newRow("blue rgb32 -> argb8565") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xff0000ff;
QTest::newRow("red rgb16 -> argb8565") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xffff0000;
QTest::newRow("green rgb16 -> argb8565") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xff00ff00;
QTest::newRow("blue rgb16 -> argb8565") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_ARGB8565_Premultiplied) << 0xff0000ff;
QTest::newRow("red argb8565 -> argb32") << int(QImage::Format_ARGB8565_Premultiplied) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green argb8565 -> argb32") << int(QImage::Format_ARGB8565_Premultiplied) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue argb8565 -> argb32") << int(QImage::Format_ARGB8565_Premultiplied) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semired argb32 -> argb8565") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f7b0000u;
QTest::newRow("semigreen argb32 -> argb8565") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f007d00u;
QTest::newRow("semiblue argb32 -> argb8565") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f00007bu;
QTest::newRow("semired pm -> argb8565") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f7b0000u;
QTest::newRow("semigreen pm -> argb8565") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f007d00u;
QTest::newRow("semiblue pm -> argb8565") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f00007bu;
QTest::newRow("semiwhite pm -> argb8565") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f7b7d7bu;
QTest::newRow("semiblack pm -> argb8565") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_ARGB8565_Premultiplied) << 0x7f000000u;
QTest::newRow("red rgb666 -> argb32") << int(QImage::Format_RGB666) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb666 -> argb32") << int(QImage::Format_RGB666) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb666 -> argb32") << int(QImage::Format_RGB666) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semired argb32 -> rgb666") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_RGB666) << 0xffff0000;
QTest::newRow("semigreen argb32 -> rgb666") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_RGB666) << 0xff00ff00;
QTest::newRow("semiblue argb32 -> rgb666") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_RGB666) << 0xff0000ff;
QTest::newRow("semired pm -> rgb666") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_RGB666) << 0xffff0000u;
QTest::newRow("semigreen pm -> rgb666") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_RGB666) << 0xff00ff00u;
QTest::newRow("semiblue pm -> rgb666") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_RGB666) << 0xff0000ffu;
QTest::newRow("semiwhite pm -> rgb666") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_RGB666) << 0xffffffffu;
QTest::newRow("semiblack pm -> rgb666") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_RGB666) << 0xff000000u;
QTest::newRow("red rgb15 -> argb32") << int(QImage::Format_RGB555) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb15 -> argb32") << int(QImage::Format_RGB555) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb15 -> argb32") << int(QImage::Format_RGB555) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semired argb32 -> rgb15") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_RGB555) << 0xffff0000;
QTest::newRow("semigreen argb32 -> rgb15") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_RGB555) << 0xff00ff00;
QTest::newRow("semiblue argb32 -> rgb15") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_RGB555) << 0xff0000ff;
QTest::newRow("semired pm -> rgb15") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_RGB555) << 0xffff0000u;
QTest::newRow("semigreen pm -> rgb15") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_RGB555) << 0xff00ff00u;
QTest::newRow("semiblue pm -> rgb15") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_RGB555) << 0xff0000ffu;
QTest::newRow("semiwhite pm -> rgb15") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_RGB555) << 0xffffffffu;
QTest::newRow("semiblack pm -> rgb15") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_RGB555) << 0xff000000u;
QTest::newRow("red rgb32 -> argb8555") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xffff0000;
QTest::newRow("green rgb32 -> argb8555") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xff00ff00;
QTest::newRow("blue rgb32 -> argb8555") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xff0000ff;
QTest::newRow("red rgb16 -> argb8555") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xffff0000;
QTest::newRow("green rgb16 -> argb8555") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xff00ff00;
QTest::newRow("blue rgb16 -> argb8555") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_ARGB8555_Premultiplied) << 0xff0000ff;
QTest::newRow("red argb8555 -> argb32") << int(QImage::Format_ARGB8555_Premultiplied) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green argb8555 -> argb32") << int(QImage::Format_ARGB8555_Premultiplied) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue argb8555 -> argb32") << int(QImage::Format_ARGB8555_Premultiplied) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semired argb32 -> argb8555") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f7b0000u;
QTest::newRow("semigreen argb32 -> argb8555") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f007b00u;
QTest::newRow("semiblue argb32 -> argb8555") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f00007bu;
QTest::newRow("semired pm -> argb8555") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f7b0000u;
QTest::newRow("semigreen pm -> argb8555") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f007b00u;
QTest::newRow("semiblue pm -> argb8555") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f00007bu;
QTest::newRow("semiwhite pm -> argb8555") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f7b7b7bu;
QTest::newRow("semiblack pm -> argb8555") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_ARGB8555_Premultiplied) << 0x7f000000u;
QTest::newRow("red rgb32 -> rgb888") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_RGB888) << 0xffff0000;
QTest::newRow("green rgb32 -> rgb888") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_RGB888) << 0xff00ff00;
QTest::newRow("blue rgb32 -> rgb888") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_RGB888) << 0xff0000ff;
QTest::newRow("red rgb32 -> bgr888") << int(QImage::Format_RGB32) << 0xffff0000
<< int(QImage::Format_BGR888) << 0xffff0000;
QTest::newRow("green rgb32 -> bgr888") << int(QImage::Format_RGB32) << 0xff00ff00
<< int(QImage::Format_BGR888) << 0xff00ff00;
QTest::newRow("blue rgb32 -> bgr888") << int(QImage::Format_RGB32) << 0xff0000ff
<< int(QImage::Format_BGR888) << 0xff0000ff;
QTest::newRow("red rgb16 -> rgb888") << int(QImage::Format_RGB16) << 0xffff0000
<< int(QImage::Format_RGB888) << 0xffff0000;
QTest::newRow("green rgb16 -> rgb888") << int(QImage::Format_RGB16) << 0xff00ff00
<< int(QImage::Format_RGB888) << 0xff00ff00;
QTest::newRow("blue rgb16 -> rgb888") << int(QImage::Format_RGB16) << 0xff0000ff
<< int(QImage::Format_RGB888) << 0xff0000ff;
QTest::newRow("red rgb888 -> argb32") << int(QImage::Format_RGB888) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb888 -> argb32") << int(QImage::Format_RGB888) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb888 -> argb32") << int(QImage::Format_RGB888) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("red bgr888 -> argb32") << int(QImage::Format_RGB888) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green bgr888 -> argb32") << int(QImage::Format_RGB888) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue bgr888 -> argb32") << int(QImage::Format_RGB888) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("red rgb888 -> rgbx8888") << int(QImage::Format_RGB888) << 0xffff0000
<< int(QImage::Format_RGBX8888) << 0xffff0000;
QTest::newRow("green rgb888 -> rgbx8888") << int(QImage::Format_RGB888) << 0xff00ff00
<< int(QImage::Format_RGBX8888) << 0xff00ff00;
QTest::newRow("blue rgb888 -> rgbx8888") << int(QImage::Format_RGB888) << 0xff0000ff
<< int(QImage::Format_RGBX8888) << 0xff0000ff;
QTest::newRow("semired argb32 -> rgb888") << int(QImage::Format_ARGB32) << 0x7fff0000u
<< int(QImage::Format_RGB888) << 0xffff0000;
QTest::newRow("semigreen argb32 -> rgb888") << int(QImage::Format_ARGB32) << 0x7f00ff00u
<< int(QImage::Format_RGB888) << 0xff00ff00;
QTest::newRow("semiblue argb32 -> rgb888") << int(QImage::Format_ARGB32) << 0x7f0000ffu
<< int(QImage::Format_RGB888) << 0xff0000ff;
QTest::newRow("semired pm -> rgb888") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u
<< int(QImage::Format_RGB888) << 0xffff0000u;
QTest::newRow("semigreen pm -> rgb888") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u
<< int(QImage::Format_RGB888) << 0xff00ff00u;
QTest::newRow("semiblue pm -> rgb888") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu
<< int(QImage::Format_RGB888) << 0xff0000ffu;
QTest::newRow("semiwhite pm -> rgb888") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu
<< int(QImage::Format_RGB888) << 0xffffffffu;
QTest::newRow("semiblack pm -> rgb888") << int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u
<< int(QImage::Format_RGB888) << 0xff000000u;
QTest::newRow("red rgba8888 -> argb32") << int(QImage::Format_RGBA8888) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgba8888 -> argb32") << int(QImage::Format_RGBA8888) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgba8888 -> argb32") << int(QImage::Format_RGBA8888) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semired rgba8888 -> argb pm") << int(QImage::Format_RGBA8888) << 0x7fff0000u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f0000u;
QTest::newRow("semigreen rgba8888 -> argb pm") << int(QImage::Format_RGBA8888) << 0x7f00ff00u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f007f00u;
QTest::newRow("semiblue rgba8888 -> argb pm") << int(QImage::Format_RGBA8888) << 0x7f0000ffu
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f00007fu;
QTest::newRow("semiwhite rgba8888 -> argb pm") << int(QImage::Format_RGBA8888) << 0x7fffffffu
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f7f7f7fu;
QTest::newRow("semiblack rgba8888 -> argb pm") << int(QImage::Format_RGBA8888) << 0x7f000000u
<< int(QImage::Format_ARGB32_Premultiplied) << 0x7f000000u;
QTest::newRow("red rgb30 -> argb32") << int(QImage::Format_RGB30) << 0xffff0000
<< int(QImage::Format_ARGB32) << 0xffff0000;
QTest::newRow("green rgb30 -> argb32") << int(QImage::Format_RGB30) << 0xff00ff00
<< int(QImage::Format_ARGB32) << 0xff00ff00;
QTest::newRow("blue rgb30 -> argb32") << int(QImage::Format_RGB30) << 0xff0000ff
<< int(QImage::Format_ARGB32) << 0xff0000ff;
QTest::newRow("semigray argb32 -> a2rgb30 pm") << int(QImage::Format_ARGB32) << 0x4c646565u
<< int(QImage::Format_A2RGB30_Premultiplied) << 0x55212222u;
QTest::newRow("white gray8 -> argb pm") << int(QImage::Format_Grayscale8) << 0xfffffeffu
<< int(QImage::Format_ARGB32_Premultiplied) << 0xfffefefeu;
QTest::newRow("gray gray8 -> argb pm") << int(QImage::Format_Grayscale8) << 0xff565557u
<< int(QImage::Format_ARGB32_Premultiplied) << 0xff555555u;
QTest::newRow("black gray8 -> argb pm") << int(QImage::Format_Grayscale8) << 0xff000100u
<< int(QImage::Format_ARGB32_Premultiplied) << 0xff000000u;
}
void tst_QImage::convertToFormat()
{
QFETCH(int, inFormat);
QFETCH(uint, inPixel);
QFETCH(int, resFormat);
QFETCH(uint, resPixel);
QImage src(32, 32, QImage::Format(inFormat));
if (inFormat == QImage::Format_Mono) {
src.setColor(0, qRgba(0,0,0,0xff));
src.setColor(1, qRgba(255,255,255,0xff));
}
for (int y=0; y<src.height(); ++y)
for (int x=0; x<src.width(); ++x)
src.setPixel(x, y, inPixel);
QImage result = src.convertToFormat(QImage::Format(resFormat));
QCOMPARE(src.width(), result.width());
QCOMPARE(src.height(), result.height());
bool same = true;
for (int y=0; y<result.height(); ++y) {
for (int x=0; x<result.width(); ++x) {
QRgb pixel = result.pixel(x, y);
same &= (pixel == resPixel);
if (!same) {
printf("expect=%08x, result=%08x\n", resPixel, pixel);
y = 100000;
break;
}
}
}
QVERIFY(same);
// repeat tests converting from an image with nonstandard stride
int dp = (src.depth() < 8 || result.depth() < 8) ? 8 : 1;
QImage src2(src.bits() + (dp*src.depth())/8,
src.width() - dp*2,
src.height() - 1, src.bytesPerLine(),
src.format());
if (src.depth() < 8)
src2.setColorTable(src.colorTable());
const QImage result2 = src2.convertToFormat(QImage::Format(resFormat));
QCOMPARE(src2.width(), result2.width());
QCOMPARE(src2.height(), result2.height());
QImage expected2(result.bits() + (dp*result.depth())/8,
result.width() - dp*2,
result.height() - 1, result.bytesPerLine(),
result.format());
if (result.depth() < 8)
expected2.setColorTable(result.colorTable());
result2.save("result2.xpm", "XPM");
expected2.save("expected2.xpm", "XPM");
QCOMPARE(result2, expected2);
QFile::remove(QLatin1String("result2.xpm"));
QFile::remove(QLatin1String("expected2.xpm"));
}
void tst_QImage::convertToFormatWithColorTable()
{
QList<QRgb> colors(2);
colors[0] = 0xFF000000;
colors[1] = 0xFFFFFFFF;
for (int format = QImage::Format_RGB32; format < QImage::Format_Alpha8; ++format) {
QImage fromImage(10, 10, (QImage::Format)format);
QImage bitmap = fromImage.convertToFormat(QImage::Format_Mono, colors);
QVERIFY(!bitmap.isNull());
}
}
void tst_QImage::convertToFormatRgb888ToRGB32()
{
// 545 so width % 4 != 0. This ensure there is padding at the end of the scanlines
const int height = 545;
const int width = 545;
QImage source(width, height, QImage::Format_RGB888);
for (int y = 0; y < height; ++y) {
uchar *srcPixels = source.scanLine(y);
for (int x = 0; x < width * 3; ++x)
srcPixels[x] = x;
}
QImage rgb32Image = source.convertToFormat(QImage::Format_RGB888);
QCOMPARE(rgb32Image.format(), QImage::Format_RGB888);
for (int x = 0; x < width; ++x) {
for (int y = 0; y < height; ++y)
QCOMPARE(rgb32Image.pixel(x, y), source.pixel(x, y));
}
}
void tst_QImage::createAlphaMask_data()
{
QTest::addColumn<int>("x");
QTest::addColumn<int>("y");
QTest::addColumn<int>("alpha1");
QTest::addColumn<int>("alpha2");
int alphas[] = { 0, 127, 255 };
for (unsigned a1 = 0; a1 < sizeof(alphas) / sizeof(int); ++a1) {
const QByteArray a1B = QByteArray::number(alphas[a1]);
for (unsigned a2 = 0; a2 < sizeof(alphas) / sizeof(int); ++a2) {
if (a1 == a2)
continue;
const QByteArray a2B = QByteArray::number(alphas[a2]);
for (int x=10; x<18; x+=3) {
const QByteArray xB = QByteArray::number(x);
for (int y=100; y<108; y+=3) {
const QByteArray testName = "x=" + xB + ", y=" + QByteArray::number(y)
+ ", a1=" + a1B + ", a2=" + a2B;
QTest::newRow(testName.constData()) << x << y << alphas[a1] << alphas[a2];
}
}
}
}
}
void tst_QImage::createAlphaMask()
{
QFETCH(int, x);
QFETCH(int, y);
QFETCH(int, alpha1);
QFETCH(int, alpha2);
QSize size(255, 255);
int pixelsInLines = size.width() + size.height() - 1;
int pixelsOutofLines = size.width() * size.height() - pixelsInLines;
// Generate an white image with two lines, horizontal at y and vertical at x.
// Lines have alpha of alpha2, rest has alpha of alpha1
QImage image(size, QImage::Format_ARGB32);
for (int cy=0; cy<image.height(); ++cy) {
for (int cx=0; cx<image.width(); ++cx) {
int alpha = (y == cy || x == cx) ? alpha2 : alpha1;
image.setPixel(cx, cy, qRgba(255, 255, 255, alpha));
}
}
QImage mask = image.createAlphaMask(Qt::OrderedAlphaDither);
// Sanity check...
QCOMPARE(mask.width(), image.width());
QCOMPARE(mask.height(), image.height());
// Sum up the number of pixels set for both lines and other area
int sumAlpha1 = 0;
int sumAlpha2 = 0;
for (int cy=0; cy<image.height(); ++cy) {
for (int cx=0; cx<image.width(); ++cx) {
int *alpha = (y == cy || x == cx) ? &sumAlpha2 : &sumAlpha1;
*alpha += mask.pixelIndex(cx, cy);
}
}
// Compare the set bits to whats expected for that alpha.
const int threshold = 5;
QVERIFY(qAbs(sumAlpha1 * 255 / pixelsOutofLines - alpha1) < threshold);
QVERIFY(qAbs(sumAlpha2 * 255 / pixelsInLines - alpha2) < threshold);
}
void tst_QImage::dotsPerMeterZero()
{
QImage img(100, 100, QImage::Format_RGB32);
QVERIFY(!img.isNull());
int defaultDpmX = img.dotsPerMeterX();
int defaultDpmY = img.dotsPerMeterY();
QVERIFY(defaultDpmX != 0);
QVERIFY(defaultDpmY != 0);
img.setDotsPerMeterX(0);
img.setDotsPerMeterY(0);
QCOMPARE(img.dotsPerMeterX(), defaultDpmX);
QCOMPARE(img.dotsPerMeterY(), defaultDpmY);
}
// verify that setting dotsPerMeter has an effect on the dpi.
void tst_QImage::dotsPerMeterAndDpi()
{
QImage img(100, 100, QImage::Format_RGB32);
QVERIFY(!img.isNull());
QPoint defaultLogicalDpi(img.logicalDpiX(), img.logicalDpiY());
QPoint defaultPhysicalDpi(img.physicalDpiX(), img.physicalDpiY());
img.setDotsPerMeterX(100); // set x
QCOMPARE(img.logicalDpiY(), defaultLogicalDpi.y()); // no effect on y
QCOMPARE(img.physicalDpiY(), defaultPhysicalDpi.y());
QVERIFY(img.logicalDpiX() != defaultLogicalDpi.x()); // x changed
QVERIFY(img.physicalDpiX() != defaultPhysicalDpi.x());
img.setDotsPerMeterY(200); // set y
QVERIFY(img.logicalDpiY() != defaultLogicalDpi.y()); // y changed
QVERIFY(img.physicalDpiY() != defaultPhysicalDpi.y());
}
void tst_QImage::rotate_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<int>("degrees");
constexpr int degrees[] = {0, 90, 180, 270};
for (int d : degrees) {
const QString dB = QString::number(d);
for (int i = QImage::Format_Indexed8; i < QImage::NImageFormats; i++) {
QImage::Format format = static_cast<QImage::Format>(i);
QTest::newRow(qPrintable(dB + " " + formatToString(format))) << format << d;
}
}
}
void tst_QImage::rotate()
{
QFETCH(QImage::Format, format);
QFETCH(int, degrees);
// test if rotate90 is lossless
int w = 54;
int h = 13;
QImage original(w, h, format);
original.fill(qRgb(255,255,255));
if (format == QImage::Format_Indexed8) {
original.setColorCount(256);
for (int i = 0; i < 255; ++i)
original.setColor(i, qRgb(0, i, i));
}
if (original.colorTable().isEmpty()) {
for (int x = 0; x < w; ++x) {
original.setPixel(x,0, qRgb(x,0,128));
original.setPixel(x,h - 1, qRgb(0,255 - x,128));
}
for (int y = 0; y < h; ++y) {
original.setPixel(0, y, qRgb(y,0,255));
original.setPixel(w - 1, y, qRgb(0,255 - y,255));
}
} else {
const int n = original.colorTable().size();
for (int x = 0; x < w; ++x) {
original.setPixel(x, 0, x % n);
original.setPixel(x, h - 1, n - (x % n) - 1);
}
for (int y = 0; y < h; ++y) {
original.setPixel(0, y, y % n);
original.setPixel(w - 1, y, n - (y % n) - 1);
}
}
// original.save("rotated90_original.png", "png");
// Initialize the matrix manually (do not use rotate) to avoid rounding errors
QTransform matRotate90;
matRotate90.rotate(degrees);
QImage dest = original;
// And rotate it 4 times, then the image should be identical to the original
for (int i = 0; i < 4 ; ++i) {
dest = dest.transformed(matRotate90);
}
// Make sure they are similar in format before we compare them.
dest = dest.convertToFormat(format);
// dest.save("rotated90_result.png","png");
QCOMPARE(original, dest);
// Test with QTransform::rotate 90 also, since we trust that now
matRotate90.rotate(degrees);
dest = original;
// And rotate it 4 times, then the image should be identical to the original
for (int i = 0; i < 4 ; ++i) {
dest = dest.transformed(matRotate90);
}
// Make sure they are similar in format before we compare them.
dest = dest.convertToFormat(format);
QCOMPARE(original, dest);
}
void tst_QImage::rotateBigImage()
{
// QTBUG-105088
QImage big_image(3840, 2160, QImage::Format_ARGB32_Premultiplied);
QTransform t;
t.translate(big_image.width() / 2.0, big_image.height() / 2.0);
t.rotate(-89, Qt::YAxis, big_image.width());
t.translate(-big_image.width() / 2.0, -big_image.height() / 2.0);
QVERIFY(!big_image.transformed(t).isNull());
QMatrix4x4 m;
m.translate(big_image.width() / 2.0, big_image.height() / 2.0);
m.projectedRotate(89, 0, 1, 0, big_image.width());
m.translate(-big_image.width() / 2.0, -big_image.height() / 2.0);
QVERIFY(!big_image.transformed(m.toTransform()).isNull());
}
void tst_QImage::copy()
{
// Task 99250
{
QImage img(16,16,QImage::Format_ARGB32);
(void)img.copy(QRect(1000,1,1,1));
}
}
void tst_QImage::load()
{
const QString filePath = m_prefix + QLatin1String("image.jpg");
QImage dest(filePath);
QVERIFY(!dest.isNull());
QVERIFY(!dest.load("image_that_does_not_exist.png"));
QVERIFY(dest.isNull());
QVERIFY(dest.load(filePath));
QVERIFY(!dest.isNull());
}
void tst_QImage::loadFromData()
{
const QString filePath = m_prefix + QLatin1String("image.jpg");
QImage original(filePath);
QVERIFY(!original.isNull());
QByteArray ba;
{
QBuffer buf(&ba);
QVERIFY(buf.open(QIODevice::WriteOnly));
QVERIFY(original.save(&buf, "BMP"));
}
QVERIFY(!ba.isEmpty());
const uchar *baPtr = reinterpret_cast<const uchar *>(ba.constData());
{
QImage dest;
QVERIFY(dest.loadFromData(QByteArrayView(ba), "BMP"));
QCOMPARE(original, dest);
QVERIFY(!dest.loadFromData(QByteArrayView()));
QVERIFY(dest.isNull());
}
{
QImage dest;
QVERIFY(dest.loadFromData(ba, "BMP"));
QCOMPARE(original, dest);
QVERIFY(!dest.loadFromData(QByteArray()));
QVERIFY(dest.isNull());
}
{
QImage dest;
QVERIFY(dest.loadFromData(baPtr, int(ba.size()), "BMP"));
QCOMPARE(original, dest);
QVERIFY(!dest.loadFromData(nullptr, 0));
QVERIFY(dest.isNull());
}
QCOMPARE(original, QImage::fromData(QByteArrayView(ba), "BMP"));
QCOMPARE(original, QImage::fromData(ba, "BMP"));
QCOMPARE(original, QImage::fromData(baPtr, int(ba.size()), "BMP"));
}
#if !defined(QT_NO_DATASTREAM)
void tst_QImage::loadFromDataStream()
{
const QString filePath = m_prefix + QLatin1String("image.jpg");
QImage original(filePath);
QVERIFY(!original.isNull());
QByteArray ba;
{
QDataStream s(&ba, QIODevice::WriteOnly);
s << original;
}
QVERIFY(!ba.isEmpty());
QImage dest;
{
QDataStream s(&ba, QIODevice::ReadOnly);
s >> dest;
}
QVERIFY(!dest.isNull());
QCOMPARE(original, dest);
{
ba.clear();
QDataStream s(&ba, QIODevice::ReadOnly);
s >> dest;
}
QVERIFY(dest.isNull());
}
#endif // QT_NO_DATASTREAM
void tst_QImage::setPixel_data()
{
QTest::addColumn<int>("format");
QTest::addColumn<uint>("value");
QTest::addColumn<uint>("expected");
QTest::newRow("ARGB32 red") << int(QImage::Format_ARGB32)
<< 0xffff0000 << 0xffff0000;
QTest::newRow("ARGB32 green") << int(QImage::Format_ARGB32)
<< 0xff00ff00 << 0xff00ff00;
QTest::newRow("ARGB32 blue") << int(QImage::Format_ARGB32)
<< 0xff0000ff << 0xff0000ff;
QTest::newRow("RGB16 red") << int(QImage::Format_RGB16)
<< 0xffff0000 << 0xf800u;
QTest::newRow("RGB16 green") << int(QImage::Format_RGB16)
<< 0xff00ff00 << 0x07e0u;
QTest::newRow("RGB16 blue") << int(QImage::Format_RGB16)
<< 0xff0000ff << 0x001fu;
QTest::newRow("ARGB8565_Premultiplied red") << int(QImage::Format_ARGB8565_Premultiplied)
<< 0xffff0000 << 0xf800ffu;
QTest::newRow("ARGB8565_Premultiplied green") << int(QImage::Format_ARGB8565_Premultiplied)
<< 0xff00ff00 << 0x07e0ffu;
QTest::newRow("ARGB8565_Premultiplied blue") << int(QImage::Format_ARGB8565_Premultiplied)
<< 0xff0000ff << 0x001fffu;
QTest::newRow("RGB666 red") << int(QImage::Format_RGB666)
<< 0xffff0000 << 0x03f000u;
QTest::newRow("RGB666 green") << int(QImage::Format_RGB666)
<< 0xff00ff00 << 0x000fc0u;
QTest::newRow("RGB666 blue") << int(QImage::Format_RGB666)
<< 0xff0000ff << 0x00003fu;
QTest::newRow("RGB555 red") << int(QImage::Format_RGB555)
<< 0xffff0000 << 0x7c00u;
QTest::newRow("RGB555 green") << int(QImage::Format_RGB555)
<< 0xff00ff00 << 0x03e0u;
QTest::newRow("RGB555 blue") << int(QImage::Format_RGB555)
<< 0xff0000ff << 0x001fu;
QTest::newRow("ARGB8555_Premultiplied red") << int(QImage::Format_ARGB8555_Premultiplied)
<< 0xffff0000 << 0x7c00ffu;
QTest::newRow("ARGB8555_Premultiplied green") << int(QImage::Format_ARGB8555_Premultiplied)
<< 0xff00ff00 << 0x03e0ffu;
QTest::newRow("ARGB8555_Premultiplied blue") << int(QImage::Format_ARGB8555_Premultiplied)
<< 0xff0000ff << 0x001fffu;
QTest::newRow("RGB888 red") << int(QImage::Format_RGB888)
<< 0xffff0000 << 0xff0000u;
QTest::newRow("RGB888 green") << int(QImage::Format_RGB888)
<< 0xff00ff00 << 0x00ff00u;
QTest::newRow("RGB888 blue") << int(QImage::Format_RGB888)
<< 0xff0000ff << 0x0000ffu;
QTest::newRow("BGR888 red") << int(QImage::Format_BGR888)
<< 0xffff0000 << 0x0000ffu;
QTest::newRow("BGR888 green") << int(QImage::Format_BGR888)
<< 0xff00ff00 << 0x00ff00u;
QTest::newRow("BGR888 blue") << int(QImage::Format_BGR888)
<< 0xff0000ff << 0xff0000u;
#if Q_BYTE_ORDER == Q_BIG_ENDIAN
QTest::newRow("RGBA8888 red") << int(QImage::Format_RGBA8888)
<< 0xffff0000u << 0xff0000ffu;
QTest::newRow("RGBA8888 green") << int(QImage::Format_RGBA8888)
<< 0xff00ff00u << 0x00ff00ffu;
QTest::newRow("RGBA8888 blue") << int(QImage::Format_RGBA8888)
<< 0xff0000ffu << 0x0000ffffu;
#else
QTest::newRow("RGBA8888 red") << int(QImage::Format_RGBA8888)
<< 0xffff0000u << 0xff0000ffu;
QTest::newRow("RGBA8888 green") << int(QImage::Format_RGBA8888)
<< 0xff00ff00u << 0xff00ff00u;
QTest::newRow("RGBA8888 blue") << int(QImage::Format_RGBA8888)
<< 0xff0000ffu << 0xffff0000u;
#endif
QTest::newRow("A2BGR30_Premultiplied red") << int(QImage::Format_A2BGR30_Premultiplied)
<< 0xffff0000u << 0xc00003ffu;
QTest::newRow("A2BGR30_Premultiplied green") << int(QImage::Format_A2BGR30_Premultiplied)
<< 0xff00ff00u << 0xc00ffc00u;
QTest::newRow("A2BGR30_Premultiplied blue") << int(QImage::Format_A2BGR30_Premultiplied)
<< 0xff0000ffu << 0xfff00000u;
QTest::newRow("RGB30 red") << int(QImage::Format_RGB30)
<< 0xffff0000u << 0xfff00000u;
QTest::newRow("RGB30 green") << int(QImage::Format_RGB30)
<< 0xff00ff00u << 0xc00ffc00u;
QTest::newRow("RGB30 blue") << int(QImage::Format_RGB30)
<< 0xff0000ffu << 0xc00003ffu;
}
void tst_QImage::setPixel()
{
QFETCH(int, format);
QFETCH(uint, value);
QFETCH(uint, expected);
const int w = 13;
const int h = 15;
QImage img(w, h, QImage::Format(format));
// fill image
for (int y = 0; y < h; ++y)
for (int x = 0; x < w; ++x)
img.setPixel(x, y, value);
// check pixel values
switch (format) {
case int(QImage::Format_RGB32):
case int(QImage::Format_ARGB32):
case int(QImage::Format_ARGB32_Premultiplied):
case int(QImage::Format_RGBX8888):
case int(QImage::Format_RGBA8888):
case int(QImage::Format_RGBA8888_Premultiplied):
case int(QImage::Format_A2BGR30_Premultiplied):
case int(QImage::Format_RGB30):
{
for (int y = 0; y < h; ++y) {
const quint32 *row = (const quint32*)(img.scanLine(y));
for (int x = 0; x < w; ++x) {
quint32 result = row[x];
if (result != expected)
printf("[x,y]: %d,%d, expected=%08x, result=%08x\n",
x, y, expected, result);
QCOMPARE(uint(result), expected);
}
}
break;
}
case int(QImage::Format_RGB555):
case int(QImage::Format_RGB16):
{
for (int y = 0; y < h; ++y) {
const quint16 *row = (const quint16*)(img.scanLine(y));
for (int x = 0; x < w; ++x) {
quint16 result = row[x];
if (result != expected)
printf("[x,y]: %d,%d, expected=%04x, result=%04x\n",
x, y, expected, result);
QCOMPARE(uint(result), expected);
}
}
break;
}
case int(QImage::Format_RGB666):
case int(QImage::Format_ARGB8565_Premultiplied):
case int(QImage::Format_ARGB8555_Premultiplied):
case int(QImage::Format_RGB888):
case int(QImage::Format_BGR888):
{
for (int y = 0; y < h; ++y) {
const quint24 *row = (const quint24*)(img.scanLine(y));
for (int x = 0; x < w; ++x) {
quint32 result = row[x];
if (result != expected)
printf("[x,y]: %d,%d, expected=%04x, result=%04x\n",
x, y, expected, result);
QCOMPARE(result, expected);
}
}
break;
}
default:
qFatal("Test not implemented for format %d", format);
}
}
void tst_QImage::setPixelWithAlpha_data()
{
QTest::addColumn<QImage::Format>("format");
for (int c = QImage::Format_RGB32; c < QImage::NImageFormats; ++c) {
if (c == QImage::Format_Grayscale8)
continue;
if (c == QImage::Format_Grayscale16)
continue;
if (c == QImage::Format_Alpha8)
continue;
QTest::newRow(qPrintable(formatToString(QImage::Format(c)))) << QImage::Format(c);
}
}
void tst_QImage::setPixelWithAlpha()
{
QFETCH(QImage::Format, format);
QImage image(1, 1, format);
QRgb referenceColor = qRgba(0, 170, 85, 170);
image.setPixel(0, 0, referenceColor);
if (!image.hasAlphaChannel())
referenceColor = 0xff000000 | referenceColor;
QRgb color = image.pixel(0, 0);
QCOMPARE(qRed(color) & 0xf0, qRed(referenceColor) & 0xf0);
QCOMPARE(qGreen(color) & 0xf0, qGreen(referenceColor) & 0xf0);
QCOMPARE(qBlue(color) & 0xf0, qBlue(referenceColor) & 0xf0);
QCOMPARE(qAlpha(color) & 0xf0, qAlpha(referenceColor) & 0xf0);
}
void tst_QImage::setPixelColorWithAlpha_data()
{
setPixelWithAlpha_data();
}
void tst_QImage::setPixelColorWithAlpha()
{
QFETCH(QImage::Format, format);
QImage image(1, 1, format);
image.setPixelColor(0, 0, QColor(170, 85, 255, 170));
QRgb referenceColor = qRgba(170, 85, 255, 170);
if (!image.hasAlphaChannel())
referenceColor = 0xff000000 | referenceColor;
else if (image.pixelFormat().premultiplied() == QPixelFormat::Premultiplied)
referenceColor = qPremultiply(referenceColor);
QRgb color = image.pixel(0, 0);
QCOMPARE(qRed(color) & 0xf0, qRed(referenceColor) & 0xf0);
QCOMPARE(qGreen(color) & 0xf0, qGreen(referenceColor) & 0xf0);
QCOMPARE(qBlue(color) & 0xf0, qBlue(referenceColor) & 0xf0);
QCOMPARE(qAlpha(color) & 0xf0, qAlpha(referenceColor) & 0xf0);
}
void tst_QImage::convertToFormatPreserveDotsPrMeter()
{
QImage img(100, 100, QImage::Format_ARGB32_Premultiplied);
int dpmx = 123;
int dpmy = 234;
img.setDotsPerMeterX(dpmx);
img.setDotsPerMeterY(dpmy);
img.fill(0x12345678);
img = img.convertToFormat(QImage::Format_RGB32);
QCOMPARE(img.dotsPerMeterX(), dpmx);
QCOMPARE(img.dotsPerMeterY(), dpmy);
}
void tst_QImage::convertToFormatPreserveText()
{
QImage img(100, 100, QImage::Format_ARGB32_Premultiplied);
img.setText("foo", "bar");
img.setText("foo2", "bar2");
img.fill(0x12345678);
QStringList listResult;
listResult << "foo" << "foo2";
QString result = "foo: bar\n\nfoo2: bar2";
QImage imgResult1 = img.convertToFormat(QImage::Format_RGB32);
QCOMPARE(imgResult1.text(), result);
QCOMPARE(imgResult1.textKeys(), listResult);
QList<QRgb> colorTable(4);
for (int i = 0; i < 4; ++i)
colorTable[i] = QRgb(42);
QImage imgResult2 = img.convertToFormat(QImage::Format_MonoLSB,
colorTable);
QCOMPARE(imgResult2.text(), result);
QCOMPARE(imgResult2.textKeys(), listResult);
}
void tst_QImage::defaultColorTable_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<int>("createdDataCount");
QTest::addColumn<int>("externalDataCount");
// For historical reasons, internally created mono images get a default colormap.
// Externally created and Indexed8 images do not.
QTest::newRow("Mono") << QImage::Format_Mono << 2 << 0;
QTest::newRow("MonoLSB") << QImage::Format_MonoLSB << 2 << 0;
QTest::newRow("Indexed8") << QImage::Format_Indexed8 << 0 << 0;
QTest::newRow("ARGB32_PM") << QImage::Format_A2BGR30_Premultiplied << 0 << 0;
}
void tst_QImage::defaultColorTable()
{
QFETCH(QImage::Format, format);
QFETCH(int, createdDataCount);
QFETCH(int, externalDataCount);
QImage img1(1, 1, format);
QCOMPARE(img1.colorCount(), createdDataCount);
QCOMPARE(img1.colorTable().size(), createdDataCount);
quint32 buf;
QImage img2(reinterpret_cast<uchar *>(&buf), 1, 1, format);
QCOMPARE(img2.colorCount(), externalDataCount);
QImage nullImg(0, 0, format);
QCOMPARE(nullImg.colorCount(), 0);
}
void tst_QImage::setColorCount()
{
QImage img(0, 0, QImage::Format_Indexed8);
QTest::ignoreMessage(QtWarningMsg, "QImage::setColorCount: null image");
img.setColorCount(256);
QCOMPARE(img.colorCount(), 0);
}
void tst_QImage::setColor()
{
QImage img(0, 0, QImage::Format_Indexed8);
img.setColor(0, qRgba(18, 219, 108, 128));
QCOMPARE(img.colorCount(), 0);
QImage img2(1, 1, QImage::Format_Indexed8);
img2.setColor(0, qRgba(18, 219, 108, 128));
QCOMPARE(img2.colorCount(), 1);
}
/* Just some sanity checking that we don't draw outside the buffer of
* the image. Hopefully this will create crashes or at least some
* random test fails when broken.
*/
void tst_QImage::rasterClipping()
{
QImage image(10, 10, QImage::Format_RGB32);
image.fill(0xffffffff);
QPainter p(&image);
p.drawLine(-1000, 5, 5, 5);
p.drawLine(-1000, 5, 1000, 5);
p.drawLine(5, 5, 1000, 5);
p.drawLine(5, -1000, 5, 5);
p.drawLine(5, -1000, 5, 1000);
p.drawLine(5, 5, 5, 1000);
p.setBrush(Qt::red);
p.drawEllipse(3, 3, 4, 4);
p.drawEllipse(-100, -100, 210, 210);
p.drawEllipse(-1000, 0, 2010, 2010);
p.drawEllipse(0, -1000, 2010, 2010);
p.drawEllipse(-2010, -1000, 2010, 2010);
p.drawEllipse(-1000, -2010, 2010, 2010);
QVERIFY(true);
}
// Tests the new QPoint overloads in QImage in Qt 4.2
void tst_QImage::pointOverloads()
{
QImage image(100, 100, QImage::Format_RGB32);
image.fill(0xff00ff00);
// IsValid
QVERIFY(image.valid(QPoint(0, 0)));
QVERIFY(image.valid(QPoint(99, 0)));
QVERIFY(image.valid(QPoint(0, 99)));
QVERIFY(image.valid(QPoint(99, 99)));
QVERIFY(!image.valid(QPoint(50, -1))); // outside on the top
QVERIFY(!image.valid(QPoint(50, 100))); // outside on the bottom
QVERIFY(!image.valid(QPoint(-1, 50))); // outside on the left
QVERIFY(!image.valid(QPoint(100, 50))); // outside on the right
// Test the pixel setter
image.setPixel(QPoint(10, 10), 0xff0000ff);
QCOMPARE(image.pixel(10, 10), 0xff0000ff);
// pixel getter
QCOMPARE(image.pixel(QPoint(10, 10)), 0xff0000ff);
// pixelIndex()
QImage indexed = image.convertToFormat(QImage::Format_Indexed8);
QCOMPARE(indexed.pixelIndex(10, 10), indexed.pixelIndex(QPoint(10, 10)));
}
void tst_QImage::destructor()
{
QPolygon poly(6);
poly.setPoint(0,-1455, 1435);
QImage image(100, 100, QImage::Format_RGB32);
QPainter ptPix(&image);
ptPix.setPen(Qt::black);
ptPix.setBrush(Qt::black);
ptPix.drawPolygon(poly, Qt::WindingFill);
ptPix.end();
}
/* XPM */
static const char *monoPixmap[] = {
/* width height ncolors chars_per_pixel */
"4 4 2 1",
"x c #000000",
". c #ffffff",
/* pixels */
"xxxx",
"x..x",
"x..x",
"xxxx"
};
#ifndef QT_NO_IMAGE_HEURISTIC_MASK
void tst_QImage::createHeuristicMask()
{
QImage img(monoPixmap);
img = img.convertToFormat(QImage::Format_MonoLSB);
QImage mask = img.createHeuristicMask();
QImage newMask = mask.convertToFormat(QImage::Format_ARGB32_Premultiplied);
// line 2
QVERIFY(newMask.pixel(0,1) != newMask.pixel(1,1));
QCOMPARE(newMask.pixel(1,1), newMask.pixel(2,1));
QVERIFY(newMask.pixel(2,1) != newMask.pixel(3,1));
// line 3
QVERIFY(newMask.pixel(0,2) != newMask.pixel(1,2));
QCOMPARE(newMask.pixel(1,2), newMask.pixel(2,2));
QVERIFY(newMask.pixel(2,2) != newMask.pixel(3,2));
}
#endif
void tst_QImage::cacheKey()
{
QImage image1(2, 2, QImage::Format_RGB32);
qint64 image1_key = image1.cacheKey();
QImage image2 = image1;
QCOMPARE(image2.cacheKey(), image1.cacheKey());
image2.detach();
QVERIFY(image2.cacheKey() != image1.cacheKey());
QCOMPARE(image1.cacheKey(), image1_key);
}
void tst_QImage::smoothScale()
{
unsigned int data[2] = { qRgba(0, 0, 0, 0), qRgba(128, 128, 128, 128) };
QImage imgX((unsigned char *)data, 2, 1, QImage::Format_ARGB32_Premultiplied);
QImage imgY((unsigned char *)data, 1, 2, QImage::Format_ARGB32_Premultiplied);
QImage scaledX = imgX.scaled(QSize(4, 1), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QImage scaledY = imgY.scaled(QSize(1, 4), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
uint *scaled[2] = {
(unsigned int *)scaledX.bits(),
(unsigned int *)scaledY.bits()
};
int expected[4] = { 0, 32, 96, 128 };
for (int image = 0; image < 2; ++image) {
for (int index = 0; index < 4; ++index) {
for (int component = 0; component < 4; ++component) {
int pixel = scaled[image][index];
int val = (pixel >> (component * 8)) & 0xff;
QCOMPARE(val, expected[index]);
}
}
}
}
// test area sampling
void tst_QImage::smoothScale2_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<int>("size");
int sizes[] = { 2, 3, 4, 6, 7, 8, 10, 16, 20, 32, 40, 64, 100, 101, 128, 0 };
QImage::Format formats[] = { QImage::Format_RGB32,
QImage::Format_ARGB32_Premultiplied,
#if QT_CONFIG(raster_64bit)
QImage::Format_RGBX64,
QImage::Format_RGBA64_Premultiplied,
#endif
#if QT_CONFIG(raster_fp)
QImage::Format_RGBX32FPx4,
QImage::Format_RGBA32FPx4_Premultiplied,
#endif
QImage::Format_Invalid };
for (int j = 0; formats[j] != QImage::Format_Invalid; ++j) {
QString formatstr = formatToString(formats[j]);
for (int i = 0; sizes[i] != 0; ++i) {
const QByteArray sizeB = QByteArray::number(sizes[i]);
QTest::newRow(QString("%1 %2x%2").arg(formatstr).arg(sizes[i]).toUtf8()) << formats[j] << sizes[i];
}
}
}
void tst_QImage::smoothScale2()
{
QFETCH(QImage::Format, format);
QFETCH(int, size);
QImage img(size, size, format);
bool opaque = !img.hasAlphaChannel();
QRgb expected = opaque ? qRgb(63, 127, 255) : qRgba(31, 63, 127, 127);
img.fill(expected);
// scale x down, y down
QImage scaled = img.scaled(QSize(1, 1), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QRgb pixel = scaled.pixel(0, 0);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
// scale x down, y up
scaled = img.scaled(QSize(1, size * 2), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int y = 0; y < scaled.height(); ++y) {
pixel = scaled.pixel(0, y);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
}
// scale x up, y down
scaled = img.scaled(QSize(size * 2, 1), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int x = 0; x < scaled.width(); ++x) {
pixel = scaled.pixel(x, 0);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
}
// scale x up
scaled = img.scaled(QSize(size, size * 2), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int y = 0; y < scaled.height(); ++y) {
for (int x = 0; x < scaled.width(); ++x) {
pixel = scaled.pixel(x, y);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
}
}
// scale y up
scaled = img.scaled(QSize(size * 2, size), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int y = 0; y < scaled.height(); ++y) {
for (int x = 0; x < scaled.width(); ++x) {
pixel = scaled.pixel(x, y);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
}
}
// scale x up, y up
scaled = img.scaled(QSize(size * 2, size * 2), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int y = 0; y < scaled.height(); ++y) {
for (int x = 0; x < scaled.width(); ++x) {
pixel = scaled.pixel(x, y);
QCOMPARE(qAlpha(pixel), qAlpha(expected));
QCOMPARE(qRed(pixel), qRed(expected));
QCOMPARE(qGreen(pixel), qGreen(expected));
QCOMPARE(qBlue(pixel), qBlue(expected));
}
}
}
static inline int rand8()
{
return QRandomGenerator::global()->bounded(256);
}
void tst_QImage::smoothScale3_data()
{
QTest::addColumn<QImage>("img");
QTest::addColumn<qreal>("scale_x");
QTest::addColumn<qreal>("scale_y");
QImage img(128, 128, QImage::Format_RGB32);
for (int y = 0; y < img.height(); ++y) {
for (int x = 0; x < img.width(); ++x) {
const int red = rand8();
const int green = rand8();
const int blue = rand8();
const int alpha = 255;
img.setPixel(x, y, qRgba(red, green, blue, alpha));
}
}
QTest::newRow("(0.5, 0.5)") << img << qreal(0.5) << qreal(0.5);
QTest::newRow("(0.5, 1.0)") << img << qreal(0.5) << qreal(1.0);
QTest::newRow("(1.0, 0.5)") << img << qreal(1.0) << qreal(0.5);
QTest::newRow("(0.5, 2.0)") << img << qreal(0.5) << qreal(2.0);
QTest::newRow("(1.0, 2.0)") << img << qreal(1.0) << qreal(2.0);
QTest::newRow("(2.0, 0.5)") << img << qreal(2.0) << qreal(0.5);
QTest::newRow("(2.0, 1.0)") << img << qreal(2.0) << qreal(1.0);
QTest::newRow("(2.0, 2.0)") << img << qreal(2) << qreal(2);
}
// compares img.scale against the bilinear filtering used by QPainter
void tst_QImage::smoothScale3()
{
QFETCH(QImage, img);
QFETCH(qreal, scale_x);
QFETCH(qreal, scale_y);
QImage a = img.scaled(img.width() * scale_x, img.height() * scale_y, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QImage b(a.size(), a.format());
b.fill(0x0);
QPainter p(&b);
p.setRenderHint(QPainter::SmoothPixmapTransform);
p.scale(scale_x, scale_y);
p.drawImage(0, 0, img);
p.end();
int err = 0;
for (int y = 0; y < a.height(); ++y) {
for (int x = 0; x < a.width(); ++x) {
QRgb ca = a.pixel(x, y);
QRgb cb = b.pixel(x, y);
// tolerate a little bit of rounding errors
int tolerance = 3;
bool r = true;
r &= qAbs(qRed(ca) - qRed(cb)) <= tolerance;
r &= qAbs(qGreen(ca) - qGreen(cb)) <= tolerance;
r &= qAbs(qBlue(ca) - qBlue(cb)) <= tolerance;
if (!r)
err++;
}
}
QCOMPARE(err, 0);
}
// Tests smooth upscale is smooth
void tst_QImage::smoothScale4_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::newRow("RGB32") << QImage::Format_RGB32;
#if QT_CONFIG(raster_64bit)
QTest::newRow("RGBx64") << QImage::Format_RGBX64;
#endif
#if QT_CONFIG(raster_fp)
QTest::newRow("RGBx32FP") << QImage::Format_RGBX32FPx4;
#endif
}
void tst_QImage::smoothScale4()
{
QFETCH(QImage::Format, format);
QImage img(4, 4, format);
for (int y = 0; y < 4; ++y) {
for (int x = 0; x < 4; ++x) {
img.setPixel(x, y, qRgb(x * 255 / 3, y * 255 / 3, 0));
}
}
QImage scaled = img.scaled(37, 23, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QCOMPARE(scaled.format(), format);
for (int y = 0; y < scaled.height(); ++y) {
for (int x = 0; x < scaled.width(); ++x) {
if (x > 0)
QVERIFY(scaled.pixelColor(x, y).redF() >= scaled.pixelColor(x - 1, y).redF());
if (y > 0)
QVERIFY(scaled.pixelColor(x, y).greenF() >= scaled.pixelColor(x, y - 1).greenF());
}
}
}
void tst_QImage::smoothScaleBig()
{
int bigValue = 200000;
QImage tall(4, bigValue, QImage::Format_ARGB32);
tall.fill(0x0);
QImage wide(bigValue, 4, QImage::Format_ARGB32);
wide.fill(0x0);
QImage tallScaled = tall.scaled(4, tall.height() / 4, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QImage wideScaled = wide.scaled(wide.width() / 4, 4, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QCOMPARE(tallScaled.pixel(0, 0), QRgb(0x0));
QCOMPARE(wideScaled.pixel(0, 0), QRgb(0x0));
}
void tst_QImage::smoothScaleAlpha()
{
QImage src(128, 128, QImage::Format_ARGB32_Premultiplied);
src.fill(0x0);
QPainter srcPainter(&src);
srcPainter.setPen(Qt::NoPen);
srcPainter.setBrush(Qt::white);
srcPainter.drawEllipse(QRect(QPoint(), src.size()));
srcPainter.end();
QImage dst(32, 32, QImage::Format_ARGB32_Premultiplied);
dst.fill(0xffffffff);
QImage expected = dst;
QPainter dstPainter(&dst);
dstPainter.drawImage(0, 0, src.scaled(dst.size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
dstPainter.end();
QCOMPARE(dst, expected);
}
void tst_QImage::smoothScaleFormats_data()
{
QTest::addColumn<QImage::Format>("format");
for (int i = QImage::Format_RGB32; i < QImage::NImageFormats; ++i) {
QTest::addRow("%s", formatToString(QImage::Format(i)).data()) << QImage::Format(i);
}
}
void tst_QImage::smoothScaleFormats()
{
QFETCH(QImage::Format, format);
QImage src(32, 32, format);
src.fill(0x0);
// Upscale using painter scaling
QImage scaled = src.scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QCOMPARE(scaled.format(), src.format());
// > 2x down-scaling using QImage::smoothScaled()
scaled = src.scaled(8, 8, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QCOMPARE(scaled.format(), src.format());
QTransform transform;
transform.rotate(45);
QImage rotated = src.transformed(transform);
QVERIFY(rotated.hasAlphaChannel());
}
static int count(const QImage &img, int x, int y, int dx, int dy, QRgb pixel)
{
int i = 0;
while (x >= 0 && x < img.width() && y >= 0 && y < img.height()) {
i += (img.pixel(x, y) == pixel);
x += dx;
y += dy;
}
return i;
}
const int transformed_image_width = 128;
const int transformed_image_height = 128;
void tst_QImage::transformed_data()
{
QTest::addColumn<QTransform>("transform");
{
QTransform transform;
transform.translate(10.4, 10.4);
QTest::newRow("Translate") << transform;
}
{
QTransform transform;
transform.scale(1.5, 1.5);
QTest::newRow("Scale") << transform;
}
{
QTransform transform;
transform.rotate(30);
QTest::newRow("Rotate 30") << transform;
}
{
QTransform transform;
transform.rotate(90);
QTest::newRow("Rotate 90") << transform;
}
{
QTransform transform;
transform.rotate(180);
QTest::newRow("Rotate 180") << transform;
}
{
QTransform transform;
transform.rotate(270);
QTest::newRow("Rotate 270") << transform;
}
{
QTransform transform;
transform.translate(transformed_image_width/2, transformed_image_height/2);
transform.rotate(155, Qt::XAxis);
transform.translate(-transformed_image_width/2, -transformed_image_height/2);
QTest::newRow("Perspective 1") << transform;
}
{
QTransform transform;
transform.rotate(155, Qt::XAxis);
transform.translate(-transformed_image_width/2, -transformed_image_height/2);
QTest::newRow("Perspective 2") << transform;
}
}
void tst_QImage::transformed()
{
QFETCH(QTransform, transform);
QImage img(transformed_image_width, transformed_image_height, QImage::Format_ARGB32_Premultiplied);
QPainter p(&img);
p.fillRect(0, 0, img.width(), img.height(), Qt::red);
p.drawRect(0, 0, img.width()-1, img.height()-1);
p.end();
QImage transformed = img.transformed(transform, Qt::SmoothTransformation);
// all borders should have touched pixels
QVERIFY(count(transformed, 0, 0, 1, 0, 0x0) < transformed.width());
QVERIFY(count(transformed, 0, 0, 0, 1, 0x0) < transformed.height());
QVERIFY(count(transformed, 0, img.height() - 1, 1, 0, 0x0) < transformed.width());
QVERIFY(count(transformed, img.width() - 1, 0, 0, 1, 0x0) < transformed.height());
QImage transformedPadded(transformed.width() + 2, transformed.height() + 2, img.format());
transformedPadded.fill(0x0);
p.begin(&transformedPadded);
p.setRenderHint(QPainter::SmoothPixmapTransform);
p.setRenderHint(QPainter::Antialiasing);
p.setTransform(transformed.trueMatrix(transform, img.width(), img.height()) * QTransform().translate(1, 1));
p.drawImage(0, 0, img);
p.end();
// no borders should have touched pixels since we have a one-pixel padding
QCOMPARE(count(transformedPadded, 0, 0, 1, 0, 0x0), transformedPadded.width());
QCOMPARE(count(transformedPadded, 0, 0, 0, 1, 0x0), transformedPadded.height());
QCOMPARE(count(transformedPadded, 0, transformedPadded.height() - 1, 1, 0, 0x0), transformedPadded.width());
QCOMPARE(count(transformedPadded, transformedPadded.width() - 1, 0, 0, 1, 0x0), transformedPadded.height());
}
void tst_QImage::transformed2()
{
QImage img(3, 3, QImage::Format_Mono);
QPainter p(&img);
p.fillRect(0, 0, 3, 3, Qt::white);
p.fillRect(0, 0, 3, 3, Qt::Dense4Pattern);
p.end();
QTransform transform;
transform.scale(3, 3);
QImage expected(9, 9, QImage::Format_Mono);
p.begin(&expected);
p.fillRect(0, 0, 9, 9, Qt::white);
p.setBrush(Qt::black);
p.setPen(Qt::NoPen);
p.drawRect(3, 0, 3, 3);
p.drawRect(0, 3, 3, 3);
p.drawRect(6, 3, 3, 3);
p.drawRect(3, 6, 3, 3);
p.end();
{
QImage actual = img.transformed(transform);
QCOMPARE(actual.format(), expected.format());
QCOMPARE(actual.size(), expected.size());
QCOMPARE(actual, expected);
}
{
transform.rotate(-90);
QImage actual = img.transformed(transform);
QCOMPARE(actual.convertToFormat(QImage::Format_ARGB32_Premultiplied),
expected.convertToFormat(QImage::Format_ARGB32_Premultiplied));
}
}
void tst_QImage::scaled()
{
QImage img(102, 3, QImage::Format_Mono);
QPainter p(&img);
p.fillRect(0, 0, img.width(), img.height(), Qt::white);
p.end();
QImage scaled = img.scaled(1994, 10);
QImage expected(1994, 10, QImage::Format_Mono);
p.begin(&expected);
p.fillRect(0, 0, expected.width(), expected.height(), Qt::white);
p.end();
QCOMPARE(scaled, expected);
}
void tst_QImage::paintEngine()
{
QImage img;
QPaintEngine *engine;
{
QImage temp(100, 100, QImage::Format_RGB32);
temp.fill(0xff000000);
QPainter p(&temp);
p.fillRect(80,80,10,10,Qt::blue);
p.end();
img = temp;
engine = temp.paintEngine();
}
{
QPainter p(&img);
p.fillRect(80,10,10,10,Qt::yellow);
p.end();
}
QImage expected(100, 100, QImage::Format_RGB32);
expected.fill(0xff000000);
QPainter p(&expected);
p.fillRect(80,80,10,10,Qt::blue);
p.fillRect(80,10,10,10,Qt::yellow);
p.end();
QCOMPARE(engine, img.paintEngine());
QCOMPARE(img, expected);
{
QImage img1(16, 16, QImage::Format_ARGB32);
QImage img2 = img1;
QVERIFY(img2.paintEngine());
}
}
void tst_QImage::setAlphaChannelWhilePainting()
{
QImage image(100, 100, QImage::Format_ARGB32);
image.fill(Qt::black);
QPainter p(&image);
image.setAlphaChannel(image.createMaskFromColor(QColor(Qt::black).rgb(), Qt::MaskInColor));
}
// See task 240047 for details
void tst_QImage::smoothScaledSubImage()
{
QImage original(128, 128, QImage::Format_RGB32);
QPainter p(&original);
p.fillRect(0, 0, 64, 128, Qt::black);
p.fillRect(64, 0, 64, 128, Qt::white);
p.end();
QImage subimage(((const QImage &) original).bits(), 32, 32, original.bytesPerLine(), QImage::Format_RGB32); // only in the black part of the source...
QImage scaled = subimage.scaled(8, 8, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
for (int y=0; y<scaled.height(); ++y)
for (int x=0; x<scaled.width(); ++x)
QCOMPARE(scaled.pixel(x, y), 0xff000000);
}
void tst_QImage::nullSize_data()
{
QTest::addColumn<QImage>("image");
QTest::newRow("null image") << QImage();
QTest::newRow("zero-size image") << QImage(0, 0, QImage::Format_RGB32);
}
void tst_QImage::nullSize()
{
QFETCH(QImage, image);
QCOMPARE(image.isNull(), true);
QCOMPARE(image.width(), image.size().width());
QCOMPARE(image.height(), image.size().height());
}
void tst_QImage::premultipliedAlphaConsistency()
{
QImage img(256, 1, QImage::Format_ARGB32);
for (int x = 0; x < 256; ++x)
img.setPixel(x, 0, (x << 24) | 0xffffff);
QImage converted = img.convertToFormat(QImage::Format_ARGB8565_Premultiplied);
QImage pm32 = converted.convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (int i = 0; i < pm32.width(); ++i) {
QRgb pixel = pm32.pixel(i, 0);
QVERIFY(qRed(pixel) <= qAlpha(pixel));
QVERIFY(qGreen(pixel) <= qAlpha(pixel));
QVERIFY(qBlue(pixel) <= qAlpha(pixel));
}
}
void tst_QImage::compareIndexed()
{
QImage img(256, 1, QImage::Format_Indexed8);
QList<QRgb> colorTable(256);
for (int i = 0; i < 256; ++i)
colorTable[i] = qRgb(i, i, i);
img.setColorTable(colorTable);
for (int i = 0; i < 256; ++i) {
img.setPixel(i, 0, i);
}
QImage imgInverted(256, 1, QImage::Format_Indexed8);
QList<QRgb> invertedColorTable(256);
for (int i = 0; i < 256; ++i)
invertedColorTable[255-i] = qRgb(i, i, i);
imgInverted.setColorTable(invertedColorTable);
for (int i = 0; i < 256; ++i) {
imgInverted.setPixel(i, 0, (255-i));
}
QCOMPARE(img, imgInverted);
}
void tst_QImage::fillColor_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<Qt::GlobalColor>("color");
QTest::addColumn<uint>("pixelValue");
QTest::newRow("Mono, color0") << QImage::Format_Mono << Qt::color0 << 0u;
QTest::newRow("Mono, color1") << QImage::Format_Mono << Qt::color1 << 1u;
QTest::newRow("MonoLSB, color0") << QImage::Format_MonoLSB << Qt::color0 << 0u;
QTest::newRow("MonoLSB, color1") << QImage::Format_MonoLSB << Qt::color1 << 1u;
const char *names[] = {
"Indexed8",
"RGB32",
"ARGB32",
"ARGB32pm",
"RGB16",
"ARGB8565pm",
"RGB666",
"ARGB6666pm",
"RGB555",
"ARGB8555pm",
"RGB888",
"RGB444",
"ARGB4444pm",
"RGBx8888",
"RGBA8888pm",
"BGR30",
"A2RGB30pm",
0
};
QImage::Format formats[] = {
QImage::Format_Indexed8,
QImage::Format_RGB32,
QImage::Format_ARGB32,
QImage::Format_ARGB32_Premultiplied,
QImage::Format_RGB16,
QImage::Format_ARGB8565_Premultiplied,
QImage::Format_RGB666,
QImage::Format_ARGB6666_Premultiplied,
QImage::Format_RGB555,
QImage::Format_ARGB8555_Premultiplied,
QImage::Format_RGB888,
QImage::Format_RGB444,
QImage::Format_ARGB4444_Premultiplied,
QImage::Format_RGBX8888,
QImage::Format_RGBA8888_Premultiplied,
QImage::Format_BGR30,
QImage::Format_A2RGB30_Premultiplied,
QImage::Format_RGBX16FPx4,
QImage::Format_RGBA32FPx4_Premultiplied,
};
for (int i=0; names[i] != 0; ++i) {
QByteArray name;
name.append(names[i]).append(", ");
QTest::newRow(QByteArray(name).append("black").constData()) << formats[i] << Qt::black << 0xff000000;
QTest::newRow(QByteArray(name).append("white").constData()) << formats[i] << Qt::white << 0xffffffff;
QTest::newRow(QByteArray(name).append("red").constData()) << formats[i] << Qt::red << 0xffff0000;
QTest::newRow(QByteArray(name).append("green").constData()) << formats[i] << Qt::green << 0xff00ff00;
QTest::newRow(QByteArray(name).append("blue").constData()) << formats[i] << Qt::blue << 0xff0000ff;
}
QTest::newRow("RGB16, transparent") << QImage::Format_RGB16 << Qt::transparent << 0xff000000;
QTest::newRow("RGB32, transparent") << QImage::Format_RGB32 << Qt::transparent << 0xff000000;
QTest::newRow("ARGB32, transparent") << QImage::Format_ARGB32 << Qt::transparent << 0x00000000u;
QTest::newRow("ARGB32pm, transparent") << QImage::Format_ARGB32_Premultiplied << Qt::transparent << 0x00000000u;
QTest::newRow("RGBA8888pm, transparent") << QImage::Format_RGBA8888_Premultiplied << Qt::transparent << 0x00000000u;
QTest::newRow("A2RGB30pm, transparent") << QImage::Format_A2RGB30_Premultiplied << Qt::transparent << 0x00000000u;
}
void tst_QImage::fillColor()
{
QFETCH(QImage::Format, format);
QFETCH(Qt::GlobalColor, color);
QFETCH(uint, pixelValue);
QImage image(1, 1, format);
if (image.depth() == 8) {
QList<QRgb> table;
table << 0xff000000;
table << 0xffffffff;
table << 0xffff0000;
table << 0xff00ff00;
table << 0xff0000ff;
image.setColorTable(table);
}
image.fill(color);
if (image.depth() == 1) {
QCOMPARE(image.pixelIndex(0, 0), (int) pixelValue);
} else {
QCOMPARE(image.pixel(0, 0), pixelValue);
}
image.fill(QColor(color));
if (image.depth() == 1) {
QCOMPARE(image.pixelIndex(0, 0), (int) pixelValue);
} else {
QCOMPARE(image.pixel(0, 0), pixelValue);
}
}
void tst_QImage::fillColorWithAlpha_data()
{
setPixelWithAlpha_data();
}
void tst_QImage::fillColorWithAlpha()
{
QFETCH(QImage::Format, format);
QImage image(1, 1, format);
image.fill(QColor(255, 170, 85, 170));
QRgb referenceColor = qRgba(255, 170, 85, 170);
if (!image.hasAlphaChannel())
referenceColor = 0xff000000 | referenceColor;
else if (image.pixelFormat().premultiplied() == QPixelFormat::Premultiplied)
referenceColor = qPremultiply(referenceColor);
QRgb color = image.pixel(0, 0);
QCOMPARE(qRed(color) & 0xf0, qRed(referenceColor) & 0xf0);
QCOMPARE(qGreen(color) & 0xf0, qGreen(referenceColor) & 0xf0);
QCOMPARE(qBlue(color) & 0xf0, qBlue(referenceColor) & 0xf0);
QCOMPARE(qAlpha(color) & 0xf0, qAlpha(referenceColor) & 0xf0);
}
void tst_QImage::fillRGB888()
{
QImage expected(1, 1, QImage::Format_RGB888);
QImage actual(1, 1, QImage::Format_RGB888);
for (int c = Qt::black; c < Qt::transparent; ++c) {
QColor color = QColor(Qt::GlobalColor(c));
expected.fill(color);
actual.fill(color.rgba());
QCOMPARE(actual.pixel(0, 0), expected.pixel(0, 0));
}
}
void tst_QImage::fillPixel_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<uint>("color");
QTest::addColumn<uint>("pixelValue");
QTest::newRow("RGB16, transparent") << QImage::Format_RGB16 << 0x0u << 0xff000000u;
QTest::newRow("RGB32, transparent") << QImage::Format_RGB32 << 0x0u << 0xff000000u;
QTest::newRow("RGB444, transparent") << QImage::Format_RGB444 << 0x0u << 0xff000000u;
QTest::newRow("RGB666, transparent") << QImage::Format_RGB666 << 0x0u << 0xff000000u;
QTest::newRow("RGBx8888, transparent") << QImage::Format_RGBX8888 << 0x0u << 0xff000000u;
QTest::newRow("ARGB32, transparent") << QImage::Format_ARGB32 << 0x0u << 0x00000000u;
QTest::newRow("ARGB32pm, transparent") << QImage::Format_ARGB32_Premultiplied << 0x0u << 0x00000000u;
QTest::newRow("RGBA8888pm, transparent") << QImage::Format_RGBA8888_Premultiplied << 0x0u << 0x00000000u;
QTest::newRow("Grayscale8, transparent") << QImage::Format_Grayscale8 << 0x0u << 0xff000000u;
QTest::newRow("Alpha8, transparent") << QImage::Format_Alpha8 << 0x0u << 0x00000000u;
QTest::newRow("RGB16, red") << QImage::Format_RGB16 << (uint)qConvertRgb32To16(0xffff0000) << 0xffff0000u;
QTest::newRow("RGB32, red") << QImage::Format_RGB32 << 0xffff0000u << 0xffff0000u;
QTest::newRow("ARGB32, red") << QImage::Format_ARGB32 << 0xffff0000u << 0xffff0000u;
QTest::newRow("RGBA8888, red") << QImage::Format_RGBA8888 << 0xff0000ffu << 0xffff0000u;
QTest::newRow("Grayscale8, grey") << QImage::Format_Grayscale8 << 0x80u << 0xff808080u;
QTest::newRow("RGB32, semi-red") << QImage::Format_RGB32 << 0x80ff0000u << 0xffff0000u;
QTest::newRow("ARGB32, semi-red") << QImage::Format_ARGB32 << 0x80ff0000u << 0x80ff0000u;
QTest::newRow("ARGB32pm, semi-red") << QImage::Format_ARGB32 << 0x80800000u << 0x80800000u;
QTest::newRow("RGBA8888pm, semi-red") << QImage::Format_RGBA8888_Premultiplied << 0x80000080u << 0x80800000u;
QTest::newRow("Alpha8, semi-transparent") << QImage::Format_Alpha8 << 0x80u << 0x80000000u;
}
void tst_QImage::fillPixel()
{
QFETCH(QImage::Format, format);
QFETCH(uint, color);
QFETCH(uint, pixelValue);
QImage image(1, 1, format);
image.fill(color);
QCOMPARE(image.pixel(0, 0), pixelValue);
if (image.depth() == 8)
QCOMPARE(*(const uchar *)image.constBits(), color);
}
void tst_QImage::rgbSwapped_data()
{
QTest::addColumn<QImage::Format>("format");
for (int i = QImage::Format_Indexed8; i < QImage::NImageFormats; ++i) {
if (i == QImage::Format_Alpha8
|| i == QImage::Format_Grayscale8
|| i == QImage::Format_Grayscale16) {
continue;
}
QTest::addRow("%s", formatToString(QImage::Format(i)).data()) << QImage::Format(i);
}
}
void tst_QImage::rgbSwapped()
{
QFETCH(QImage::Format, format);
QImage image(100, 1, format);
image.fill(0);
QList<QColor> testColor(image.width());
for (int i = 0; i < image.width(); ++i)
testColor[i] = QColor(i, 10 + i, 20 + i * 2, 30 + i);
if (format != QImage::Format_Indexed8) {
QPainter p(&image);
p.setCompositionMode(QPainter::CompositionMode_Source);
for (int i = 0; i < image.width(); ++i)
p.fillRect(QRect(i, 0, 1, 1), testColor[i].rgb());
} else {
image.setColorCount(image.width());
for (int i = 0; i < image.width(); ++i) {
image.setColor(0, testColor[i].rgba());
image.setPixel(i, 0, i);
}
}
QImage imageSwapped = image.rgbSwapped();
for (int i = 0; i < image.width(); ++i) {
QColor referenceColor = QColor(image.pixel(i, 0));
QColor swappedColor = QColor(imageSwapped.pixel(i, 0));
QCOMPARE(swappedColor.alpha(), referenceColor.alpha());
QCOMPARE(swappedColor.red(), referenceColor.blue());
QCOMPARE(swappedColor.green(), referenceColor.green());
QCOMPARE(swappedColor.blue(), referenceColor.red());
}
imageSwapped.rgbSwap();
QCOMPARE(image, imageSwapped);
QCOMPARE(memcmp(image.constBits(), imageSwapped.constBits(), image.sizeInBytes()), 0);
}
void tst_QImage::mirrored_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<bool>("swap_vertical");
QTest::addColumn<bool>("swap_horizontal");
QTest::addColumn<int>("width");
QTest::addColumn<int>("height");
QTest::newRow("Format_RGB32, vertical") << QImage::Format_RGB32 << true << false << 16 << 16;
QTest::newRow("Format_ARGB32, vertical") << QImage::Format_ARGB32 << true << false << 16 << 16;
QTest::newRow("Format_ARGB32_Premultiplied, vertical") << QImage::Format_ARGB32_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_RGB16, vertical") << QImage::Format_RGB16 << true << false << 16 << 16;
QTest::newRow("Format_ARGB8565_Premultiplied, vertical") << QImage::Format_ARGB8565_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_ARGB6666_Premultiplied, vertical") << QImage::Format_ARGB6666_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_ARGB4444_Premultiplied, vertical") << QImage::Format_ARGB4444_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_RGB666, vertical") << QImage::Format_RGB666 << true << false << 16 << 16;
QTest::newRow("Format_RGB555, vertical") << QImage::Format_RGB555 << true << false << 16 << 16;
QTest::newRow("Format_ARGB8555_Premultiplied, vertical") << QImage::Format_ARGB8555_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_RGB888, vertical") << QImage::Format_RGB888 << true << false << 16 << 16;
QTest::newRow("Format_BGR888, vertical") << QImage::Format_BGR888 << true << false << 16 << 16;
QTest::newRow("Format_RGB444, vertical") << QImage::Format_RGB444 << true << false << 16 << 16;
QTest::newRow("Format_RGBX8888, vertical") << QImage::Format_RGBX8888 << true << false << 16 << 16;
QTest::newRow("Format_RGBA8888_Premultiplied, vertical") << QImage::Format_RGBA8888_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_A2BGR30_Premultiplied, vertical") << QImage::Format_A2BGR30_Premultiplied << true << false << 16 << 16;
QTest::newRow("Format_RGB30, vertical") << QImage::Format_RGB30 << true << false << 16 << 16;
QTest::newRow("Format_Indexed8, vertical") << QImage::Format_Indexed8 << true << false << 16 << 16;
QTest::newRow("Format_Mono, vertical") << QImage::Format_Mono << true << false << 16 << 16;
QTest::newRow("Format_MonoLSB, vertical") << QImage::Format_MonoLSB << true << false << 16 << 16;
QTest::newRow("Format_ARGB32_Premultiplied, horizontal") << QImage::Format_ARGB32_Premultiplied << false << true << 16 << 16;
QTest::newRow("Format_RGB888, horizontal") << QImage::Format_RGB888 << false << true << 16 << 16;
QTest::newRow("Format_RGB16, horizontal") << QImage::Format_RGB16 << false << true << 16 << 16;
QTest::newRow("Format_Indexed8, horizontal") << QImage::Format_Indexed8 << false << true << 16 << 16;
QTest::newRow("Format_Mono, horizontal") << QImage::Format_Mono << false << true << 16 << 16;
QTest::newRow("Format_MonoLSB, horizontal") << QImage::Format_MonoLSB << false << true << 16 << 16;
QTest::newRow("Format_ARGB32_Premultiplied, horizontal+vertical") << QImage::Format_ARGB32_Premultiplied << true << true << 16 << 16;
QTest::newRow("Format_RGB888, horizontal+vertical") << QImage::Format_RGB888 << true << true << 16 << 16;
QTest::newRow("Format_RGB16, horizontal+vertical") << QImage::Format_RGB16 << true << true << 16 << 16;
QTest::newRow("Format_Indexed8, horizontal+vertical") << QImage::Format_Indexed8 << true << true << 16 << 16;
QTest::newRow("Format_Mono, horizontal+vertical") << QImage::Format_Mono << true << true << 16 << 16;
QTest::newRow("Format_MonoLSB, horizontal+vertical") << QImage::Format_MonoLSB << true << true << 16 << 16;
QTest::newRow("Format_RGB32, vertical, narrow") << QImage::Format_RGB32 << true << false << 8 << 16;
QTest::newRow("Format_ARGB32, vertical, short") << QImage::Format_ARGB32 << true << false << 16 << 8;
QTest::newRow("Format_Mono, vertical, non-aligned") << QImage::Format_Mono << true << false << 19 << 25;
QTest::newRow("Format_MonoLSB, vertical, non-aligned") << QImage::Format_MonoLSB << true << false << 19 << 25;
// Non-aligned horizontal 1-bit needs special handling so test this.
QTest::newRow("Format_Mono, horizontal, non-aligned") << QImage::Format_Mono << false << true << 13 << 17;
QTest::newRow("Format_Mono, horizontal, non-aligned, big") << QImage::Format_Mono << false << true << 19 << 25;
QTest::newRow("Format_Mono, horizontal+vertical, non-aligned, big") << QImage::Format_Mono << true << true << 25 << 47;
QTest::newRow("Format_Mono, horizontal+vertical, non-aligned") << QImage::Format_Mono << true << true << 21 << 16;
QTest::newRow("Format_MonoLSB, horizontal, non-aligned") << QImage::Format_MonoLSB << false << true << 13 << 17;
QTest::newRow("Format_MonoLSB, horizontal, non-aligned, big") << QImage::Format_MonoLSB << false << true << 19 << 25;
QTest::newRow("Format_MonoLSB, horizontal+vertical, non-aligned, big") << QImage::Format_MonoLSB << true << true << 25 << 47;
QTest::newRow("Format_MonoLSB, horizontal+vertical, non-aligned") << QImage::Format_MonoLSB << true << true << 21 << 16;
}
void tst_QImage::mirrored()
{
QFETCH(QImage::Format, format);
QFETCH(bool, swap_vertical);
QFETCH(bool, swap_horizontal);
QFETCH(int, width);
QFETCH(int, height);
QImage image(width, height, format);
switch (format) {
case QImage::Format_Mono:
case QImage::Format_MonoLSB:
for (int i = 0; i < image.height(); ++i) {
ushort* scanLine = (ushort*)image.scanLine(i);
*scanLine = (i % 2) ? 0x5555U : 0xCCCCU;
}
break;
case QImage::Format_Indexed8:
for (int i = 0; i < image.height(); ++i) {
for (int j = 0; j < image.width(); ++j) {
image.setColor(i*16+j, qRgb(j*16, i*16, 0));
image.setPixel(j, i, i*16+j);
}
}
break;
default:
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j*16, i*16, 0));
break;
}
QImage imageMirrored = image.mirrored(swap_horizontal, swap_vertical);
for (int i = 0; i < image.height(); ++i) {
int mirroredI = swap_vertical ? (image.height() - i - 1) : i;
for (int j = 0; j < image.width(); ++j) {
QRgb referenceColor = image.pixel(j, i);
int mirroredJ = swap_horizontal ? (image.width() - j - 1) : j;
QRgb mirroredColor = imageMirrored.pixel(mirroredJ, mirroredI);
QCOMPARE(mirroredColor, referenceColor);
}
}
imageMirrored.mirror(swap_horizontal, swap_vertical);
QCOMPARE(image, imageMirrored);
if (format != QImage::Format_Mono && format != QImage::Format_MonoLSB)
QCOMPARE(memcmp(image.constBits(), imageMirrored.constBits(), image.sizeInBytes()), 0);
else {
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
QCOMPARE(image.pixel(j,i), imageMirrored.pixel(j,i));
}
}
void tst_QImage::inplaceRgbSwapped_data()
{
rgbSwapped_data();
}
void tst_QImage::inplaceRgbSwapped()
{
QFETCH(QImage::Format, format);
QImage image(64, 1, format);
image.fill(0);
QList<QRgb> testColor(image.width());
for (int i = 0; i < image.width(); ++i)
testColor[i] = qRgb(i * 2, i * 3, std::min(255 - i * 4, 0));
if (format == QImage::Format_Indexed8) {
for (int i = 0; i < image.width(); ++i) {
image.setColor(i, testColor[i]);
image.setPixel(i, 0, i);
}
} else {
for (int i = 0; i < image.width(); ++i)
image.setPixel(i, 0, testColor[i]);
}
const uchar* orginalPtr = image.constScanLine(0);
QImage imageSwapped = std::move(image).rgbSwapped();
for (int i = 0; i < imageSwapped.width(); ++i) {
QRgb referenceColor = testColor[i];
QRgb swappedColor = imageSwapped.pixel(i, 0);
QCOMPARE(qRed(swappedColor) & 0xf0, qBlue(referenceColor) & 0xf0);
QCOMPARE(qGreen(swappedColor) & 0xf0, qGreen(referenceColor) & 0xf0);
QCOMPARE(qBlue(swappedColor) & 0xf0, qRed(referenceColor) & 0xf0);
}
QCOMPARE(imageSwapped.constScanLine(0), orginalPtr);
for (int rw = 0; rw <= 1; rw++) {
// Test attempted inplace conversion of images created on existing buffer
uchar *volatileData = 0;
QImage orig = imageSwapped;
QImage dataSwapped;
{
QVERIFY(!orig.isNull());
volatileData = new uchar[orig.sizeInBytes()];
memcpy(volatileData, orig.constBits(), orig.sizeInBytes());
QImage dataImage;
if (rw)
dataImage = QImage(volatileData, orig.width(), orig.height(), orig.format());
else
dataImage = QImage((const uchar *)volatileData, orig.width(), orig.height(), orig.format());
if (orig.colorCount())
dataImage.setColorTable(orig.colorTable());
dataSwapped = std::move(dataImage).rgbSwapped();
QVERIFY(!dataSwapped.isNull());
delete[] volatileData;
}
QVERIFY2(dataSwapped.constBits() != volatileData, rw ? "non-const" : "const");
QCOMPARE(dataSwapped, orig.rgbSwapped());
}
}
void tst_QImage::inplaceMirrored_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<bool>("swap_vertical");
QTest::addColumn<bool>("swap_horizontal");
for (int i = QImage::Format_Mono; i < QImage::NImageFormats; ++i) {
if (i == QImage::Format_Alpha8
|| i == QImage::Format_Grayscale8
|| i == QImage::Format_Grayscale16) {
continue;
}
if (i == QImage::Format_RGB444 || i == QImage::Format_ARGB4444_Premultiplied)
continue;
const auto fmt = formatToString(QImage::Format(i));
QTest::addRow("%s, vertical", fmt.data())
<< QImage::Format(i) << true << false;
QTest::addRow("%s, horizontal", fmt.data())
<< QImage::Format(i) << false << true;
QTest::addRow("%s, horizontal+vertical", fmt.data())
<< QImage::Format(i) << true << true;
}
}
void tst_QImage::inplaceMirrored()
{
#if defined(Q_COMPILER_REF_QUALIFIERS)
QFETCH(QImage::Format, format);
QFETCH(bool, swap_vertical);
QFETCH(bool, swap_horizontal);
QImage image(16, 16, format);
switch (format) {
case QImage::Format_Mono:
case QImage::Format_MonoLSB:
for (int i = 0; i < image.height(); ++i) {
ushort* scanLine = (ushort*)image.scanLine(i);
*scanLine = (i % 2) ? 0x0fffU : 0xf000U;
}
break;
case QImage::Format_Indexed8:
for (int i = 0; i < image.height(); ++i) {
for (int j = 0; j < image.width(); ++j) {
image.setColor(i*16+j, qRgb(j*16, i*16, 0));
image.setPixel(j, i, i*16+j);
}
}
break;
default:
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j*16, i*16, 0));
}
const uchar* originalPtr = image.constScanLine(0);
QImage imageMirrored = std::move(image).mirrored(swap_horizontal, swap_vertical);
if (format != QImage::Format_Mono && format != QImage::Format_MonoLSB) {
for (int i = 0; i < imageMirrored.height(); ++i) {
int mirroredI = swap_vertical ? (imageMirrored.height() - i - 1) : i;
for (int j = 0; j < imageMirrored.width(); ++j) {
int mirroredJ = swap_horizontal ? (imageMirrored.width() - j - 1) : j;
QRgb mirroredColor = imageMirrored.pixel(mirroredJ, mirroredI);
QCOMPARE(qRed(mirroredColor) & 0xF8, j * 16);
QCOMPARE(qGreen(mirroredColor) & 0xF8, i * 16);
}
}
} else {
for (int i = 0; i < imageMirrored.height(); ++i) {
ushort* scanLine = (ushort*)imageMirrored.scanLine(i);
ushort expect;
if (swap_vertical && swap_horizontal)
expect = (i % 2) ? 0x000fU : 0xfff0U;
else if (swap_vertical)
expect = (i % 2) ? 0xf000U : 0x0fffU;
else
expect = (i % 2) ? 0xfff0U : 0x000fU;
QCOMPARE(*scanLine, expect);
}
}
QCOMPARE(imageMirrored.constScanLine(0), originalPtr);
for (int rw = 0; rw <= 1; rw++) {
// Test attempted inplace conversion of images created on existing buffer
uchar *volatileData = 0;
QImage orig = imageMirrored;
QImage dataSwapped;
{
QVERIFY(!orig.isNull());
volatileData = new uchar[orig.sizeInBytes()];
memcpy(volatileData, orig.constBits(), orig.sizeInBytes());
QImage dataImage;
if (rw)
dataImage = QImage(volatileData, orig.width(), orig.height(), orig.format());
else
dataImage = QImage((const uchar *)volatileData, orig.width(), orig.height(), orig.format());
if (orig.colorCount())
dataImage.setColorTable(orig.colorTable());
dataSwapped = std::move(dataImage).mirrored(swap_horizontal, swap_vertical);
QVERIFY(!dataSwapped.isNull());
delete[] volatileData;
}
QVERIFY2(dataSwapped.constBits() != volatileData, rw ? "non-const" : "const");
QCOMPARE(dataSwapped, orig.mirrored(swap_horizontal, swap_vertical));
}
#endif
}
void tst_QImage::inplaceMirroredOdd_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<bool>("swap_vertical");
QTest::addColumn<bool>("swap_horizontal");
QTest::newRow("Format_ARGB32, vertical") << QImage::Format_ARGB32 << true << false;
QTest::newRow("Format_RGB888, vertical") << QImage::Format_RGB888 << true << false;
QTest::newRow("Format_RGB16, vertical") << QImage::Format_RGB16 << true << false;
QTest::newRow("Format_ARGB32, horizontal") << QImage::Format_ARGB32 << false << true;
QTest::newRow("Format_RGB888, horizontal") << QImage::Format_RGB888 << false << true;
QTest::newRow("Format_RGB16, horizontal") << QImage::Format_RGB16 << false << true;
QTest::newRow("Format_ARGB32, horizontal+vertical") << QImage::Format_ARGB32 << true << true;
QTest::newRow("Format_RGB888, horizontal+vertical") << QImage::Format_RGB888 << true << true;
QTest::newRow("Format_RGB16, horizontal+vertical") << QImage::Format_RGB16 << true << true;
}
void tst_QImage::inplaceMirroredOdd()
{
#if defined(Q_COMPILER_REF_QUALIFIERS)
QFETCH(QImage::Format, format);
QFETCH(bool, swap_vertical);
QFETCH(bool, swap_horizontal);
QImage image(15, 15, format);
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j*16, i*16, 0));
const uchar* originalPtr = image.constScanLine(0);
QImage imageMirrored = std::move(image).mirrored(swap_horizontal, swap_vertical);
for (int i = 0; i < imageMirrored.height(); ++i) {
int mirroredI = swap_vertical ? (imageMirrored.height() - i - 1) : i;
for (int j = 0; j < imageMirrored.width(); ++j) {
int mirroredJ = swap_horizontal ? (imageMirrored.width() - j - 1) : j;
QRgb mirroredColor = imageMirrored.pixel(mirroredJ, mirroredI);
QCOMPARE(qRed(mirroredColor) & 0xF8, j * 16);
QCOMPARE(qGreen(mirroredColor) & 0xF8, i * 16);
}
}
QCOMPARE(imageMirrored.constScanLine(0), originalPtr);
#endif
}
void tst_QImage::inplaceRgbMirrored()
{
#if defined(Q_COMPILER_REF_QUALIFIERS)
QImage image1(32, 32, QImage::Format_ARGB32);
QImage image2(32, 32, QImage::Format_ARGB32);
image1.fill(0);
image2.fill(0);
const uchar* originalPtr1 = image1.constScanLine(0);
const uchar* originalPtr2 = image2.constScanLine(0);
QCOMPARE(std::move(image1).rgbSwapped().mirrored().constScanLine(0), originalPtr1);
QCOMPARE(std::move(image2).mirrored().rgbSwapped().constScanLine(0), originalPtr2);
#endif
}
void tst_QImage::genericRgbConversion_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QImage::Format>("dest_format");
for (int i = QImage::Format_RGB32; i < QImage::NImageFormats; ++i) {
if (i == QImage::Format_Alpha8)
continue;
const QLatin1String formatI = formatToString(QImage::Format(i));
for (int j = QImage::Format_RGB32; j < QImage::NImageFormats; ++j) {
if (j == QImage::Format_Alpha8)
continue;
if (i == j)
continue;
QTest::addRow("%s -> %s", formatI.data(), formatToString(QImage::Format(j)).data())
<< QImage::Format(i) << QImage::Format(j);
}
}
}
void tst_QImage::genericRgbConversion()
{
// Test that all RGB conversions work and maintain at least 4bit of color accuracy.
QFETCH(QImage::Format, format);
QFETCH(QImage::Format, dest_format);
bool srcGrayscale = format == QImage::Format_Grayscale8 || format == QImage::Format_Grayscale16;
bool dstGrayscale = dest_format == QImage::Format_Grayscale8 || dest_format == QImage::Format_Grayscale16;
QImage image(16, 16, format);
for (int i = 0; i < image.height(); ++i) {
for (int j = 0; j < image.width(); ++j) {
if (srcGrayscale || dstGrayscale)
image.setPixel(j, i, qRgb((i + j) * 8, (i + j) * 8, (i + j) * 8));
else
image.setPixel(j, i, qRgb(j * 16, i * 16, (i + j) * 8));
}
}
QImage imageConverted = image.convertToFormat(dest_format);
uint mask = std::min(image.depth(), imageConverted.depth()) < 32 ? 0xFFF0F0F0 : 0xFFFFFFFF;
if (srcGrayscale || dstGrayscale)
mask = std::max(image.depth(), imageConverted.depth()) < 32 ? 0xFFF0F0F0 : 0xFFFFFFFF;
if (srcGrayscale && dstGrayscale)
mask = 0xFFFFFFFF;
QCOMPARE(imageConverted.format(), dest_format);
for (int i = 0; i < imageConverted.height(); ++i) {
for (int j = 0; j < imageConverted.width(); ++j) {
QRgb convertedColor = imageConverted.pixel(j,i);
if (srcGrayscale || dstGrayscale)
QCOMPARE(convertedColor & mask, qRgb((i + j) * 8, (i + j) * 8, (i + j) * 8) & mask);
else
QCOMPARE(convertedColor & mask, qRgb(j * 16, i * 16, (i + j) * 8) & mask);
}
}
}
void tst_QImage::inplaceRgbConversion_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QImage::Format>("dest_format");
for (int i = QImage::Format_RGB32; i < QImage::NImageFormats; ++i) {
if (i == QImage::Format_Alpha8
|| i == QImage::Format_Grayscale8
|| i == QImage::Format_Grayscale16) {
continue;
}
for (int j = QImage::Format_RGB32; j < QImage::NImageFormats; ++j) {
if (j == QImage::Format_Alpha8
|| j == QImage::Format_Grayscale8
|| j == QImage::Format_Grayscale16) {
continue;
}
if (i == j)
continue;
if (qt_depthForFormat(QImage::Format(i)) >= qt_depthForFormat(QImage::Format(j)))
QTest::addRow("%s -> %s", formatToString(QImage::Format(i)).data(), formatToString(QImage::Format(j)).data())
<< QImage::Format(i) << QImage::Format(j);
}
}
}
void tst_QImage::inplaceRgbConversion()
{
// Test that conversions between RGB formats of the same bitwidth can be done inplace.
QFETCH(QImage::Format, format);
QFETCH(QImage::Format, dest_format);
QImage image(16, 16, format);
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j*16, i*16, 0));
const uchar* originalPtr = image.constScanLine(0);
QImage imageConverted = std::move(image).convertToFormat(dest_format);
QCOMPARE(imageConverted.format(), dest_format);
for (int i = 0; i < imageConverted.height(); ++i) {
for (int j = 0; j < imageConverted.width(); ++j) {
QRgb convertedColor = imageConverted.pixel(j,i);
QCOMPARE(convertedColor & 0xFFF0F0F0, qRgb(j * 16, i * 16, 0));
}
}
if (qt_depthForFormat(format) == qt_depthForFormat(dest_format))
QCOMPARE(imageConverted.constScanLine(0), originalPtr);
if (qt_depthForFormat(format) <= 32) {
// Test attempted inplace conversion of images created on existing buffer
static const quint32 readOnlyData[] = { 0xff0102ffU, 0xff0506ffU, 0xff0910ffU, 0xff1314ffU };
quint32 readWriteData[] = { 0xff0102ffU, 0xff0506ffU, 0xff0910ffU, 0xff1314ffU };
QImage roInplaceConverted;
QImage rwInplaceConverted;
{
QImage roImage((const uchar *)readOnlyData, 2, 2, format);
roInplaceConverted = std::move(roImage).convertToFormat(dest_format);
QImage rwImage((uchar *)readWriteData, 2, 2, format);
rwInplaceConverted = std::move(rwImage).convertToFormat(dest_format);
}
QImage roImage2((const uchar *)readOnlyData, 2, 2, format);
QImage normalConverted = roImage2.convertToFormat(dest_format);
QVERIFY(roInplaceConverted.constBits() != (const uchar *)readOnlyData);
QCOMPARE(normalConverted, roInplaceConverted);
QVERIFY(rwInplaceConverted.constBits() != (const uchar *)readWriteData);
QCOMPARE(normalConverted, rwInplaceConverted);
}
}
void tst_QImage::largeGenericRgbConversion_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QImage::Format>("dest_format");
QImage::Format formats[] = {
QImage::Format_RGB32,
QImage::Format_ARGB32,
QImage::Format_ARGB32_Premultiplied,
QImage::Format_RGB16,
QImage::Format_RGB888,
QImage::Format_RGBA8888,
QImage::Format_BGR30,
QImage::Format_A2RGB30_Premultiplied,
QImage::Format_RGBA64_Premultiplied,
};
for (QImage::Format src_format : formats) {
for (QImage::Format dst_format : formats) {
if (src_format == dst_format)
continue;
QTest::addRow("%s -> %s", formatToString(src_format).data(), formatToString(dst_format).data())
<< src_format << dst_format;
}
}
}
void tst_QImage::largeGenericRgbConversion()
{
// Also test a larger conversion for a few formats (here the tested precision is also higher)
QFETCH(QImage::Format, format);
QFETCH(QImage::Format, dest_format);
// Must have more than 64k pixels to trigger threaded codepath:
QImage image(512, 216, format);
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j % 256, i, 0));
const bool precision_8bit = (format != QImage::Format_RGB16) && (dest_format != QImage::Format_RGB16);
QImage imageConverted = image.convertToFormat(dest_format);
QCOMPARE(imageConverted.format(), dest_format);
for (int i = 0; i < imageConverted.height(); ++i) {
for (int j = 0; j < imageConverted.width(); ++j) {
if (precision_8bit) {
QCOMPARE(imageConverted.pixel(j, i), image.pixel(j, i));
} else {
QRgb convertedColor = imageConverted.pixel(j,i);
QCOMPARE(qRed(convertedColor) & 0xF8, (j % 256) & 0xF8);
QCOMPARE(qGreen(convertedColor) & 0xFC, i & 0xFC);
}
}
}
}
void tst_QImage::largeInplaceRgbConversion_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QImage::Format>("dest_format");
QImage::Format formats[] = {
QImage::Format_RGB32,
QImage::Format_ARGB32,
QImage::Format_ARGB32_Premultiplied,
QImage::Format_RGB16,
QImage::Format_RGB888,
QImage::Format_RGBA8888,
QImage::Format_BGR30,
QImage::Format_A2RGB30_Premultiplied,
QImage::Format_RGBA64_Premultiplied,
};
for (QImage::Format src_format : formats) {
for (QImage::Format dst_format : formats) {
if (src_format == dst_format)
continue;
if (qt_depthForFormat(src_format) < qt_depthForFormat(dst_format))
continue;
QTest::addRow("%s -> %s", formatToString(src_format).data(), formatToString(dst_format).data())
<< src_format << dst_format;
}
}
}
void tst_QImage::largeInplaceRgbConversion()
{
// Also test a larger conversion for a few formats
QFETCH(QImage::Format, format);
QFETCH(QImage::Format, dest_format);
// Must have more than 64k pixels to trigger threaded codepath:
QImage image(512, 216, format);
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
image.setPixel(j, i, qRgb(j % 256, i, 0));
const bool precision_8bit = (format != QImage::Format_RGB16) && (dest_format != QImage::Format_RGB16);
image.convertTo(dest_format);
QCOMPARE(image.format(), dest_format);
for (int i = 0; i < image.height(); ++i) {
for (int j = 0; j < image.width(); ++j) {
if (precision_8bit) {
QCOMPARE(image.pixel(j,i), qRgb(j % 256, i, 0));
} else {
QRgb convertedColor = image.pixel(j,i);
QCOMPARE(qRed(convertedColor) & 0xF8, (j % 256) & 0xF8);
QCOMPARE(qGreen(convertedColor) & 0xFC, i & 0xFC);
}
}
}
}
void tst_QImage::deepCopyWhenPaintingActive()
{
QImage image(64, 64, QImage::Format_ARGB32_Premultiplied);
image.fill(0);
QPainter painter(&image);
QImage copy = image;
painter.setBrush(Qt::black);
painter.drawEllipse(image.rect());
QVERIFY(copy != image);
}
void tst_QImage::scaled_QTBUG19157()
{
QImage foo(5000, 1, QImage::Format_RGB32);
foo = foo.scaled(1024, 1024, Qt::KeepAspectRatio);
QVERIFY(!foo.isNull());
}
void tst_QImage::convertOverUnPreMul()
{
QImage image(256, 256, QImage::Format_ARGB32_Premultiplied);
for (int j = 0; j < 256; j++) {
for (int i = 0; i <= j; i++) {
image.setPixel(i, j, qRgba(i, i, i, j));
}
}
QImage image2 = image.convertToFormat(QImage::Format_ARGB32).convertToFormat(QImage::Format_ARGB32_Premultiplied);
for (int j = 0; j < 256; j++) {
for (int i = 0; i <= j; i++) {
QCOMPARE(qAlpha(image2.pixel(i, j)), qAlpha(image.pixel(i, j)));
QCOMPARE(qGray(image2.pixel(i, j)), qGray(image.pixel(i, j)));
}
}
}
void tst_QImage::scaled_QTBUG35972()
{
QImage src(532,519,QImage::Format_ARGB32_Premultiplied);
src.fill(QColor(Qt::white));
QImage dest(1000,1000,QImage::Format_ARGB32_Premultiplied);
dest.fill(QColor(Qt::white));
QPainter painter1(&dest);
const QTransform trf(1.25, 0,
0, 1.25,
/*dx */ 15.900000000000034, /* dy */ 72.749999999999986);
painter1.setTransform(trf);
painter1.drawImage(QRectF(-2.6, -2.6, 425.6, 415.20000000000005), src, QRectF(0,0,532,519));
const quint32 *pixels = reinterpret_cast<const quint32 *>(dest.constBits());
int size = dest.width()*dest.height();
for (int i = 0; i < size; ++i)
QCOMPARE(pixels[i], 0xffffffff);
}
void tst_QImage::convertToPixelFormat()
{
QPixelFormat rgb565 = qPixelFormatRgba(5,6,5,0,QPixelFormat::IgnoresAlpha, QPixelFormat::AtBeginning, QPixelFormat::NotPremultiplied, QPixelFormat::UnsignedShort);
QPixelFormat rgb565ImageFormat = QImage::toPixelFormat(QImage::Format_RGB16);
QCOMPARE(rgb565, rgb565ImageFormat);
}
void tst_QImage::convertToImageFormat_data()
{
QTest::addColumn<QImage::Format>("image_format");
QTest::newRow("Convert Format_Invalid") << QImage::Format_Invalid;
QTest::newRow("Convert Format_Mono") << QImage::Format_Mono;
//This ends up being a QImage::Format_Mono since we cant specify LSB in QPixelFormat
//QTest::newRow("Convert Format_MonoLSB") << QImage::Format_MonoLSB;
QTest::newRow("Convert Format_Indexed8") << QImage::Format_Indexed8;
QTest::newRow("Convert Format_RGB32") << QImage::Format_RGB32;
QTest::newRow("Convert Format_ARGB32") << QImage::Format_ARGB32;
QTest::newRow("Convert Format_ARGB32_Premultiplied") << QImage::Format_ARGB32_Premultiplied;
QTest::newRow("Convert Format_RGB16") << QImage::Format_RGB16;
QTest::newRow("Convert Format_ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied;
QTest::newRow("Convert Format_RGB666") << QImage::Format_RGB666;
QTest::newRow("Convert Format_ARGB6666_Premultiplied") << QImage::Format_ARGB6666_Premultiplied;
QTest::newRow("Convert Format_RGB555") << QImage::Format_RGB555;
QTest::newRow("Convert Format_ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied;
QTest::newRow("Convert Format_RGB888") << QImage::Format_RGB888;
QTest::newRow("Convert Format_RGB444") << QImage::Format_RGB444;
QTest::newRow("Convert Format_ARGB4444_Premultiplied") << QImage::Format_ARGB4444_Premultiplied;
QTest::newRow("Convert Format_RGBX8888") << QImage::Format_RGBX8888;
QTest::newRow("Convert Format_RGBA8888") << QImage::Format_RGBA8888;
QTest::newRow("Convert Format_RGBA8888_Premultiplied") << QImage::Format_RGBA8888_Premultiplied;
}
void tst_QImage::convertToImageFormat()
{
QFETCH(QImage::Format, image_format);
QPixelFormat pixel_format = QImage::toPixelFormat(image_format);
QImage::Format format = QImage::toImageFormat(pixel_format);
QCOMPARE(format, image_format);
}
void tst_QImage::invertPixelsRGB_data()
{
QTest::addColumn<QImage::Format>("image_format");
for (int i = QImage::Format_RGB32; i < QImage::NImageFormats; ++i) {
if (i == QImage::Format_Alpha8
|| i == QImage::Format_Grayscale8
|| i == QImage::Format_Grayscale16) {
continue;
}
QTest::addRow("%s", formatToString(QImage::Format(i)).data()) << QImage::Format(i);
}
}
void tst_QImage::invertPixelsRGB()
{
QFETCH(QImage::Format, image_format);
QImage image(1, 1, image_format);
image.fill(QColor::fromRgb(32, 64, 96));
image.invertPixels();
QCOMPARE(image.format(), image_format);
uint pixel = image.pixel(0, 0);
QCOMPARE(qRed(pixel) >> 4, (255 - 32) >> 4);
QCOMPARE(qGreen(pixel) >> 4, (255 - 64) >> 4);
QCOMPARE(qBlue(pixel) >> 4, (255 - 96) >> 4);
}
void tst_QImage::invertPixelsIndexed()
{
{
QImage image(1, 1, QImage::Format_Mono);
image.fill(Qt::color1);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 0);
}
{
QImage image(1, 1, QImage::Format_MonoLSB);
image.fill(Qt::color0);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 1);
}
{
QImage image(1, 1, QImage::Format_Indexed8);
image.setColorTable({0xff000000, 0xffffffff});
image.fill(Qt::black);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 255);
}
{
QImage image(1, 1, QImage::Format_Indexed8);
image.setColorTable({0xff000000, 0xffffffff, 0x80000000, 0x80ffffff, 0x00000000});
image.fill(Qt::white);
image.invertPixels();
QCOMPARE(image.pixelIndex(0, 0), 254);
}
}
void tst_QImage::exifOrientation_data()
{
QTest::addColumn<QString>("fileName");
QTest::addColumn<int>("orientation");
QTest::addColumn<int>("dpmx");
QTest::addColumn<int>("dpmy");
QTest::newRow("Orientation 1, Intel format") << m_prefix + "jpeg_exif_orientation_value_1.jpg" << (int)QImageIOHandler::TransformationNone << 39 << 39;
QTest::newRow("Orientation 2, Intel format") << m_prefix + "jpeg_exif_orientation_value_2.jpg" << (int)QImageIOHandler::TransformationMirror << 39 << 39;
QTest::newRow("Orientation 3, Intel format") << m_prefix + "jpeg_exif_orientation_value_3.jpg" << (int)QImageIOHandler::TransformationRotate180 << 39 << 39;
QTest::newRow("Orientation 4, Intel format") << m_prefix + "jpeg_exif_orientation_value_4.jpg" << (int)QImageIOHandler::TransformationFlip << 39 << 39;
QTest::newRow("Orientation 5, Intel format") << m_prefix + "jpeg_exif_orientation_value_5.jpg" << (int)QImageIOHandler::TransformationFlipAndRotate90 << 39 << 39;
QTest::newRow("Orientation 6, Intel format") << m_prefix + "jpeg_exif_orientation_value_6.jpg" << (int)QImageIOHandler::TransformationRotate90 << 39 << 39;
QTest::newRow("Orientation 6, Motorola format") << m_prefix + "jpeg_exif_orientation_value_6_motorola.jpg" << (int)QImageIOHandler::TransformationRotate90 << 39 << 39;
QTest::newRow("Orientation 7, Intel format") << m_prefix + "jpeg_exif_orientation_value_7.jpg" << (int)QImageIOHandler::TransformationMirrorAndRotate90 << 39 << 39;
QTest::newRow("Orientation 8, Intel format") << m_prefix + "jpeg_exif_orientation_value_8.jpg" << (int)QImageIOHandler::TransformationRotate270 << 39 << 39;
}
QT_BEGIN_NAMESPACE
extern void qt_imageTransform(QImage &src, QImageIOHandler::Transformations orient);
QT_END_NAMESPACE
QT_USE_NAMESPACE
void tst_QImage::exifOrientation()
{
QFETCH(QString, fileName);
QFETCH(int, orientation);
QFETCH(int, dpmx);
QFETCH(int, dpmy);
QImageReader imageReader(fileName);
imageReader.setAutoTransform(true);
QCOMPARE(imageReader.transformation(), orientation);
QImage img = imageReader.read();
QCOMPARE(img.dotsPerMeterX(), dpmx);
QCOMPARE(img.dotsPerMeterY(), dpmy);
QRgb px;
QVERIFY(!img.isNull());
px = img.pixel(0, 0);
QVERIFY(qRed(px) > 250 && qGreen(px) < 5 && qBlue(px) < 5);
px = img.pixel(img.width() - 1, 0);
QVERIFY(qRed(px) < 5 && qGreen(px) < 5 && qBlue(px) > 250);
QImageReader imageReader2(fileName);
QCOMPARE(imageReader2.autoTransform(), false);
QCOMPARE(imageReader2.transformation(), orientation);
QImage img2 = imageReader2.read();
qt_imageTransform(img2, imageReader2.transformation());
QCOMPARE(img, img2);
}
void tst_QImage::exif_QTBUG45865()
{
QFile file(m_prefix + "jpeg_exif_QTBUG-45865.jpg");
QVERIFY(file.open(QIODevice::ReadOnly));
QByteArray byteArray = file.readAll();
QImage image = QImage::fromData(byteArray);
QCOMPARE(image.size(), QSize(5, 8));
}
void tst_QImage::exifInvalidData_data()
{
QTest::addColumn<bool>("$never used");
QTest::newRow("QTBUG-46870");
QTest::newRow("back_pointers");
QTest::newRow("past_end");
QTest::newRow("too_many_ifds");
QTest::newRow("too_many_tags");
}
void tst_QImage::exifInvalidData()
{
QImage image;
QVERIFY(image.load(m_prefix + "jpeg_exif_invalid_data_" + QTest::currentDataTag() + ".jpg"));
QVERIFY(!image.isNull());
}
void tst_QImage::exifReadComments()
{
#ifdef QT_NO_IMAGEIO_TEXT_LOADING
QSKIP("Reading text from image file is configured off");
#endif
QImage image;
QVERIFY(image.load(m_prefix + "jpeg_exif_utf8_comment.jpg"));
QVERIFY(!image.isNull());
QCOMPARE(image.textKeys().size(), 1);
QCOMPARE(image.textKeys().first(), "Description");
// check if exif comment is read as utf-8
QCOMPARE(image.text("Description"), QString::fromUtf8("some unicode chars: ÖÄÜ€@"));
QByteArray ba;
{
QBuffer buf(&ba);
QVERIFY(buf.open(QIODevice::WriteOnly));
QVERIFY(image.save(&buf, "JPG"));
}
QVERIFY(!ba.isEmpty());
image = QImage();
QCOMPARE(image.textKeys().size(), 0);
{
QBuffer buf(&ba);
QVERIFY(buf.open(QIODevice::ReadOnly));
QVERIFY(image.load(&buf, "JPG"));
}
// compare written (and reread) description text
QCOMPARE(image.text("Description"), QString::fromUtf8("some unicode chars: ÖÄÜ€@"));
}
static void cleanupFunction(void* info)
{
bool *called = static_cast<bool*>(info);
*called = true;
}
void tst_QImage::cleanupFunctions()
{
QImage bufferImage(64, 64, QImage::Format_ARGB32);
bufferImage.fill(0);
bool called;
{
called = false;
{
QImage image(bufferImage.bits(), bufferImage.width(), bufferImage.height(), bufferImage.format(), cleanupFunction, &called);
}
QVERIFY(called);
}
{
called = false;
QImage *copy = nullptr;
{
QImage image(bufferImage.bits(), bufferImage.width(), bufferImage.height(), bufferImage.format(), cleanupFunction, &called);
copy = new QImage(image);
}
QVERIFY(!called);
delete copy;
QVERIFY(called);
}
{
called = false;
QImage container;
{
QImage image(bufferImage.bits(), bufferImage.width(), bufferImage.height(), bufferImage.format(), cleanupFunction, &called);
container = std::move(image);
// Test methods don't crash after move:
Q_UNUSED(image.isNull());
Q_UNUSED(image.width());
Q_UNUSED(image.bytesPerLine());
Q_UNUSED(image.sizeInBytes());
Q_UNUSED(image.constBits());
}
// 'image' was moved and should outlive its scope
QVERIFY(!called);
container = QImage();
QVERIFY(called);
}
{
called = false;
QImage outer(bufferImage.bits(), bufferImage.width(), bufferImage.height(), bufferImage.format(), cleanupFunction, &called);
bool called2 = false;
{
uchar internalData[256];
QImage internal(internalData, 16, 16, QImage::Format_Grayscale8, cleanupFunction, &called2);
internal = std::move(outer);
}
// 'internal' was _not_ moved and should not outlive its original scope
QVERIFY(called2);
// 'outer' was moved into the inner scope and should now be dead.
QVERIFY(called);
}
}
// test image devicePixelRatio setting and detaching
void tst_QImage::devicePixelRatio()
{
// create image
QImage a(64, 64, QImage::Format_ARGB32);
a.fill(Qt::white);
QCOMPARE(a.devicePixelRatio(), qreal(1.0));
QCOMPARE(a.isDetached(), true);
// copy image
QImage b = a;
QCOMPARE(b.devicePixelRatio(), qreal(1.0));
QCOMPARE(a.isDetached(), false);
QCOMPARE(b.isDetached(), false);
// set devicePixelRatio to the current value: does not detach
a.setDevicePixelRatio(qreal(1.0));
QCOMPARE(a.isDetached(), false);
QCOMPARE(b.isDetached(), false);
// set devicePixelRatio to a new value: may detach (currently
// does, but we may want to avoid the data copy the future)
a.setDevicePixelRatio(qreal(2.0));
QCOMPARE(a.devicePixelRatio(), qreal(2.0));
QCOMPARE(b.devicePixelRatio(), qreal(1.0));
}
void tst_QImage::deviceIndependentSize() {
QImage a(64, 64, QImage::Format_ARGB32);
a.fill(Qt::white);
a.setDevicePixelRatio(1.0);
QCOMPARE(a.deviceIndependentSize(), QSizeF(64, 64));
a.setDevicePixelRatio(2.0);
QCOMPARE(a.deviceIndependentSize(), QSizeF(32, 32));
}
void tst_QImage::rgb30Unpremul()
{
QImage a(3, 1, QImage::Format_A2RGB30_Premultiplied);
((uint*)a.bits())[0] = (3U << 30) | (128 << 20) | (256 << 10) | 512;
((uint*)a.bits())[1] = (2U << 30) | (131 << 20) | (259 << 10) | 515;
((uint*)a.bits())[2] = (1U << 30) | ( 67 << 20) | (131 << 10) | 259;
QImage b = a.convertToFormat(QImage::Format_RGB30);
const uint* bbits = (const uint*)b.bits();
QCOMPARE(bbits[0], (3U << 30) | (128 << 20) | (256 << 10) | 512);
QCOMPARE(bbits[1], (3U << 30) | (196 << 20) | (388 << 10) | 772);
QCOMPARE(bbits[2], (3U << 30) | (201 << 20) | (393 << 10) | 777);
}
void tst_QImage::rgb30Repremul_data()
{
QTest::addColumn<uint>("color");
for (int i = 255; i > 0; i -= 15) {
QTest::addRow("100%% red=%d", i) << qRgba(i, 0, 0, 0xff);
QTest::addRow("75%% red=%d", i) << qRgba(i, 0, 0, 0xc0);
QTest::addRow("50%% red=%d", i) << qRgba(i, 0, 0, 0x80);
QTest::addRow("37.5%% red=%d", i) << qRgba(i, 0, 0, 0x60);
}
}
void tst_QImage::rgb30Repremul()
{
QFETCH(uint, color);
QImage a(1, 1, QImage::Format_ARGB32);
a.setPixel(0, 0, color);
QImage b = a.convertToFormat(QImage::Format_A2BGR30_Premultiplied);
b = b.convertToFormat(QImage::Format_ARGB32);
uint expectedColor = qUnpremultiply(qPremultiply(color));
uint newColor = b.pixel(0, 0);
QVERIFY(qAbs(qRed(newColor) - qRed(expectedColor)) <= 1);
}
void tst_QImage::metadataPassthrough()
{
QImage a(64, 64, QImage::Format_ARGB32);
a.fill(Qt::white);
a.setText(QStringLiteral("Test"), QStringLiteral("Text"));
a.setDotsPerMeterX(100);
a.setDotsPerMeterY(80);
a.setDevicePixelRatio(2.0);
QImage scaled = a.scaled(QSize(32, 32), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QCOMPARE(scaled.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(scaled.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(scaled.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(scaled.devicePixelRatio(), a.devicePixelRatio());
scaled = a.scaled(QSize(128, 128), Qt::IgnoreAspectRatio, Qt::FastTransformation);
QCOMPARE(scaled.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(scaled.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(scaled.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(scaled.devicePixelRatio(), a.devicePixelRatio());
QImage mirrored = a.mirrored();
QCOMPARE(mirrored.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(mirrored.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(mirrored.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(mirrored.devicePixelRatio(), a.devicePixelRatio());
QTransform t;
t.rotate(90);
QImage rotated = a.transformed(t);
QCOMPARE(rotated.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(rotated.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(rotated.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(rotated.devicePixelRatio(), a.devicePixelRatio());
QImage swapped = a.rgbSwapped();
QCOMPARE(swapped.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(swapped.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(swapped.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(swapped.devicePixelRatio(), a.devicePixelRatio());
QImage converted = a.convertToFormat(QImage::Format_RGB32);
QCOMPARE(converted.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(converted.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(converted.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(converted.devicePixelRatio(), a.devicePixelRatio());
QList<QRgb> clut({ 0xFFFF0000, 0xFF00FF00, 0xFF0000FF });
QImage convertedWithClut = a.convertToFormat(QImage::Format_Indexed8, clut);
QCOMPARE(convertedWithClut.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(convertedWithClut.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(convertedWithClut.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(convertedWithClut.devicePixelRatio(), a.devicePixelRatio());
QImage copied = a.copy(0, 0, a.width() / 2, a.height() / 2);
QCOMPARE(copied.text(QStringLiteral("Test")), a.text(QStringLiteral("Test")));
QCOMPARE(copied.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(copied.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(copied.devicePixelRatio(), a.devicePixelRatio());
QImage alphaMask = a.createAlphaMask();
QCOMPARE(alphaMask.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(alphaMask.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(alphaMask.devicePixelRatio(), a.devicePixelRatio());
QImage heuristicMask = a.createHeuristicMask();
QCOMPARE(heuristicMask.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(heuristicMask.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(heuristicMask.devicePixelRatio(), a.devicePixelRatio());
QImage maskFromColor = a.createMaskFromColor(qRgb(0, 0, 0));
QCOMPARE(maskFromColor.dotsPerMeterX(), a.dotsPerMeterX());
QCOMPARE(maskFromColor.dotsPerMeterY(), a.dotsPerMeterY());
QCOMPARE(maskFromColor.devicePixelRatio(), a.devicePixelRatio());
}
void tst_QImage::pixelColor()
{
QImage argb32(1, 1, QImage::Format_ARGB32);
QImage argb32pm(1, 1, QImage::Format_ARGB32_Premultiplied);
QColor c(Qt::red);
c.setAlpha(128);
argb32.setPixelColor(QPoint(0, 0), c);
argb32pm.setPixelColor(QPoint(0, 0), c);
QCOMPARE(argb32.pixelColor(QPoint(0, 0)), c);
QCOMPARE(argb32pm.pixelColor(QPoint(0, 0)), c);
QImage t = argb32.convertToFormat(QImage::Format_ARGB32_Premultiplied);
QCOMPARE(t.pixel(0,0), argb32pm.pixel(0,0));
// Try specifying an invalid position.
QTest::ignoreMessage(QtWarningMsg, "QImage::setPixelColor: coordinate (-1,-1) out of range");
argb32.setPixelColor(-1, -1, QColor(Qt::red));
// Try setting an invalid color.
QTest::ignoreMessage(QtWarningMsg, "QImage::setPixelColor: color is invalid");
argb32.setPixelColor(0, 0, QColor());
// Test correct premultiplied handling of RGBA64 as well
QImage rgba64(1, 1, QImage::Format_RGBA64);
QImage rgba64pm(1, 1, QImage::Format_RGBA64_Premultiplied);
rgba64.setPixelColor(QPoint(0, 0), c);
rgba64pm.setPixelColor(QPoint(0, 0), c);
QCOMPARE(rgba64.pixelColor(QPoint(0, 0)), c);
QCOMPARE(rgba64pm.pixelColor(QPoint(0, 0)), c);
}
void tst_QImage::pixel()
{
{
QImage mono(1, 1, QImage::Format_Mono);
QImage monolsb(1, 1, QImage::Format_MonoLSB);
QImage indexed(1, 1, QImage::Format_Indexed8);
mono.fill(0);
monolsb.fill(0);
indexed.fill(0);
QCOMPARE(QColor(mono.pixel(0, 0)), QColor(Qt::black));
QCOMPARE(QColor(monolsb.pixel(0, 0)), QColor(Qt::black));
indexed.pixel(0, 0); // Don't crash
}
{
uchar a = 0;
QImage mono(&a, 1, 1, QImage::Format_Mono);
QImage monolsb(&a, 1, 1, QImage::Format_MonoLSB);
QImage indexed(&a, 1, 1, QImage::Format_Indexed8);
mono.pixel(0, 0); // Don't crash
monolsb.pixel(0, 0); // Don't crash
indexed.pixel(0, 0); // Don't crash
}
}
void tst_QImage::ditherGradient_data()
{
QTest::addColumn<QImage>("image");
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<int>("flags");
QTest::addColumn<int>("minimumExpectedGradient");
QImage rgb32(256, 16, QImage::Format_RGB32);
QLinearGradient gradient(QRectF(rgb32.rect()).topLeft(), QRectF(rgb32.rect()).topRight());
gradient.setColorAt(0.0, QColor(0, 0, 0));
gradient.setColorAt(1.0, QColor(255, 255, 255));
QPainter p;
p.begin(&rgb32);
p.fillRect(rgb32.rect(), gradient);
p.end();
QTest::newRow("rgb32 -> rgb444 (no dither)") << rgb32 << QImage::Format_RGB444 << 0 << 16;
QTest::newRow("rgb32 -> rgb444 (dithering)") << rgb32 << QImage::Format_RGB444 << int(Qt::PreferDither | Qt::OrderedDither) << 33;
QTest::newRow("rgb32 -> argb4444pm (dithering)") << rgb32 << QImage::Format_ARGB4444_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 33;
QTest::newRow("rgb32 -> rgb16 (no dither)") << rgb32 << QImage::Format_RGB16 << 0 << 32;
QTest::newRow("rgb32 -> rgb16 (dithering)") << rgb32 << QImage::Format_RGB16 << int(Qt::PreferDither | Qt::OrderedDither) << 65;
QTest::newRow("rgb32 -> rgb666 (no dither)") << rgb32 << QImage::Format_RGB666 << 0 << 64;
QTest::newRow("rgb32 -> rgb666 (dithering)") << rgb32 << QImage::Format_RGB666 << int(Qt::PreferDither | Qt::OrderedDither) << 129;
// Test we get the same results for opaque input in the ARGBPM implementation.
rgb32 = std::move(rgb32).convertToFormat(QImage::Format_ARGB32_Premultiplied);
QTest::newRow("argb32pm -> argb4444pm (no dither)") << rgb32 << QImage::Format_ARGB4444_Premultiplied << 0 << 16;
QTest::newRow("argb32pm -> rgb444 (dithering)") << rgb32 << QImage::Format_RGB444 << int(Qt::PreferDither | Qt::OrderedDither) << 33;
QTest::newRow("argb32pm -> argb4444pm (dithering)") << rgb32 << QImage::Format_ARGB4444_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 33;
QTest::newRow("argb32pm -> argb8565pm (no dither)") << rgb32 << QImage::Format_ARGB8565_Premultiplied << 0 << 32;
QTest::newRow("argb32pm -> argb8565pm (dithering)") << rgb32 << QImage::Format_ARGB8565_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 65;
QTest::newRow("argb32pm -> argb6666pm (no dither)") << rgb32 << QImage::Format_ARGB6666_Premultiplied << 0 << 64;
QTest::newRow("argb32pm -> argb6666pm (dithering)") << rgb32 << QImage::Format_ARGB6666_Premultiplied << int(Qt::PreferDither | Qt::OrderedDither) << 129;
#if QT_CONFIG(raster_64bit)
QImage rgb30(1024, 16, QImage::Format_RGB30);
QLinearGradient gradient30(QRectF(rgb30.rect()).topLeft(), QRectF(rgb30.rect()).topRight());
gradient30.setColorAt(0.0, QColor(0, 0, 0));
gradient30.setColorAt(1.0, QColor(255, 255, 255));
p.begin(&rgb30);
p.fillRect(rgb30.rect(), gradient30);
p.end();
QTest::newRow("rgb30 -> rgb32 (no dither)") << rgb30 << QImage::Format_RGB32 << 0 << 256;
QTest::newRow("rgb30 -> rgb32 (dithering)") << rgb30 << QImage::Format_RGB32 << int(Qt::PreferDither | Qt::OrderedDither) << 513;
QTest::newRow("rgb30 -> rgb888 (no dither)") << rgb30 << QImage::Format_RGB888 << 0 << 256;
QTest::newRow("rgb30 -> rgb888 (dithering)") << rgb30 << QImage::Format_RGB888 << int(Qt::PreferDither | Qt::OrderedDither) << 513;
#endif
}
void tst_QImage::ditherGradient()
{
QFETCH(QImage, image);
QFETCH(QImage::Format, format);
QFETCH(int, flags);
QFETCH(int, minimumExpectedGradient);
QImage converted = image.convertToFormat(format, (Qt::ImageConversionFlags)flags);
int observedGradientSteps = 0;
int lastTotal = -1;
for (int i = 0; i < converted.width(); ++i) {
int total = 0;
for (int j = 0; j < converted.height(); ++j) {
uint c = converted.pixel(i, j);
QCOMPARE(qAlpha(c), 255);
total += qRed(c);
}
if (total > lastTotal) {
observedGradientSteps++;
lastTotal = total;
}
}
QVERIFY(observedGradientSteps >= minimumExpectedGradient);
}
void tst_QImage::reinterpretAsFormat_data()
{
QTest::addColumn<QImage::Format>("in_format");
QTest::addColumn<QImage::Format>("out_format");
QTest::addColumn<QColor>("in_color");
QTest::addColumn<QColor>("out_color");
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
QTest::newRow("rgb32 -> rgbx8888") << QImage::Format_RGB32 << QImage::Format_RGBX8888 << QColor(Qt::red) << QColor(Qt::blue);
QTest::newRow("rgba8888 -> argb32") << QImage::Format_RGBA8888 << QImage::Format_ARGB32 << QColor(Qt::red) << QColor(Qt::blue);
QTest::newRow("argb32pm -> rgba8888pm") << QImage::Format_RGBA8888_Premultiplied << QImage::Format_ARGB32_Premultiplied << QColor(Qt::green) << QColor(Qt::green);
#endif
QTest::newRow("rgb32 -> argb32") << QImage::Format_RGB32 << QImage::Format_ARGB32 << QColor(Qt::cyan) << QColor(Qt::cyan);
QTest::newRow("argb32pm -> rgb32") << QImage::Format_ARGB32_Premultiplied << QImage::Format_RGB32 << QColor(Qt::transparent) << QColor(Qt::black);
QTest::newRow("argb32 -> rgb32") << QImage::Format_ARGB32 << QImage::Format_RGB32 << QColor(255, 0, 0, 127) << QColor(255, 0, 0);
QTest::newRow("argb32pm (red) -> rgb32") << QImage::Format_ARGB32_Premultiplied << QImage::Format_RGB32 << QColor(255, 0, 0, 127) << QColor(127, 0, 0);
}
void tst_QImage::reinterpretAsFormat()
{
QFETCH(QImage::Format, in_format);
QFETCH(QImage::Format, out_format);
QFETCH(QColor, in_color);
QFETCH(QColor, out_color);
QImage image(1, 1, in_format);
image.setPixelColor(0, 0, in_color);
QVERIFY(image.reinterpretAsFormat(out_format));
QCOMPARE(image.pixelColor(0, 0), out_color);
}
void tst_QImage::reinterpretAsFormat2()
{
const uint imageData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
{
QImage image(reinterpret_cast<const uchar*>(imageData), 4, 2, QImage::Format_RGB32);
QCOMPARE(image.pixelColor(0, 0), QColor(Qt::black));
QVERIFY(image.isDetached());
QVERIFY(image.reinterpretAsFormat(QImage::Format_ARGB32_Premultiplied));
QCOMPARE(image.constBits(), reinterpret_cast<const uchar*>(imageData));
QCOMPARE(image.pixelColor(0, 0), QColor(Qt::transparent));
QVERIFY(!image.reinterpretAsFormat(QImage::Format_Grayscale8));
}
{
QImage image(reinterpret_cast<const uchar*>(imageData), 8, 4, QImage::Format_Indexed8);
image.setColor(0, qRgb(255, 255, 255));
QCOMPARE(image.pixelColor(0, 0), QColor(Qt::white));
QVERIFY(image.reinterpretAsFormat(QImage::Format_Grayscale8));
QCOMPARE(image.pixelColor(0, 0), QColor(Qt::black));
QVERIFY(image.reinterpretAsFormat(QImage::Format_Alpha8));
QCOMPARE(image.pixelColor(0, 0), QColor(Qt::transparent));
QVERIFY(!image.reinterpretAsFormat(QImage::Format_RGB16));
}
}
void tst_QImage::complexTransform8bit()
{
QImage img1(100, 100, QImage::Format_RGB32);
img1.fill(Qt::green);
img1 = img1.convertToFormat(QImage::Format_Indexed8);
QImage img2 = img1.transformed(QTransform().rotate(45), Qt::SmoothTransformation);
// Currently the format is always QImage::Format_ARGB32_Premultiplied, but it
// doesn't have to be, and if it becomes indexed this test is no longer be valid.
QVERIFY(img2.format() > QImage::Format_Indexed8);
QCOMPARE(img2.colorCount(), 0);
}
#ifdef Q_OS_DARWIN
void tst_QImage::toCGImage_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<bool>("supported");
// Populate test data with supported status for all QImage formats.
QSet<QImage::Format> supported =
{ QImage::Format_ARGB32, QImage::Format_RGB32, QImage::Format_RGBA8888_Premultiplied,
QImage::Format_RGBA8888, QImage::Format_RGBX8888, QImage::Format_ARGB32_Premultiplied };
for (int i = QImage::Format_Invalid; i < QImage::Format_Grayscale8; ++i) {
QTest::addRow("%s", formatToString(QImage::Format(i)).data())
<< QImage::Format(i) << supported.contains(QImage::Format(i));
}
}
// Verify that toCGImage() returns a valid CGImageRef for supported image formats.
void tst_QImage::toCGImage()
{
QFETCH(QImage::Format, format);
QFETCH(bool, supported);
QImage qimage(64, 64, format);
qimage.fill(Qt::red);
CGImageRef cgimage = qimage.toCGImage();
QCOMPARE(cgimage != nullptr, supported);
CGImageRelease(cgimage);
}
#endif
void tst_QImage::hugeQImage()
{
#if Q_PROCESSOR_WORDSIZE < 8
QSKIP("Test only makes sense on 64-bit machines");
#else
std::unique_ptr<char[]> enough(new (std::nothrow) char[qsizetype(25000)*25000*4]);
if (!enough)
QSKIP("Could not allocate enough memory");
QImage image((uchar*)enough.get(), 25000, 25000, QImage::Format_RGB32);
QVERIFY(!image.isNull());
QCOMPARE(image.height(), 25000);
QCOMPARE(image.width(), 25000);
QCOMPARE(image.sizeInBytes(), qsizetype(25000)*25000*4);
QCOMPARE(image.bytesPerLine(), 25000 * 4);
QCOMPARE(image.constScanLine(24990), image.constBits() + qsizetype(25000)*24990*4);
image.setPixel(20000, 24990, 0xffaabbcc);
QCOMPARE(image.pixel(20000, 24990), 0xffaabbcc);
QCOMPARE((reinterpret_cast<const unsigned int *>(image.constScanLine(24990)))[20000], 0xffaabbcc);
QImage canvas(100, 100, QImage::Format_RGB32);
QPainter painter(&canvas);
painter.drawImage(0,0, image, 19950, 24900, 100, 100);
painter.end();
QCOMPARE(reinterpret_cast<const unsigned int *>(canvas.constScanLine(90))[50], 0xffaabbcc);
#endif
}
void tst_QImage::convertColorTable()
{
QImage image(10, 10, QImage::Format_Indexed8);
image.setColor(0, 0x80ffffff);
image.fill(0);
QImage argb32 = image.convertToFormat(QImage::Format_ARGB32);
QCOMPARE(argb32.pixel(0,0), 0x80ffffff);
QImage argb32pm = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
QCOMPARE(argb32pm.pixel(0,0), 0x80808080);
QImage rgb32 = image.convertToFormat(QImage::Format_RGB32);
QCOMPARE(rgb32.pixel(0,0), 0xffffffff);
}
void tst_QImage::wideImage()
{
// QTBUG-73731 and QTBUG-73732
QImage i(538994187, 2, QImage::Format_ARGB32);
QImage i2(32, 32, QImage::Format_ARGB32);
i2.fill(Qt::white);
// Test that it doesn't crash:
QPainter painter(&i);
// With the composition mode is SourceOver out it's an invalid write
// With the composition mode is Source it's an invalid read
painter.drawImage(0, 0, i2);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(0, 0, i2);
// Qt6: Test that it actually works on 64bit architectures.
}
void tst_QImage::largeFillScale()
{
#if Q_PROCESSOR_WORDSIZE < 8
QSKIP("Test fails on 32-bit builds");
#endif
// Test from QTBUG-84428
QImage input(QSize(std::numeric_limits<qint16>::max() + 10, 1), QImage::Format_ARGB32_Premultiplied);
input.fill(Qt::white);
const int scaleFactor = 2;
QImage scaled = input.scaled(input.width(), input.height() * scaleFactor);
for (int x = 0, w = input.width(); x < w; ++x) {
const auto inputPixel = input.pixel(x, 0);
auto scaledPixel = scaled.pixel(x, 0);
QCOMPARE(scaledPixel, inputPixel);
scaledPixel = scaled.pixel(x, 1);
QCOMPARE(scaledPixel, inputPixel);
}
}
void tst_QImage::largeRasterScale()
{
#if Q_PROCESSOR_WORDSIZE < 8
QSKIP("Test fails on 32-bit builds");
#endif
// Now test that qgrayraster still works at these ranges
QImage image(QSize(40000, 200), QImage::Format_RGB32);
image.fill(Qt::white);
QPainter painter(&image);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setBrush(Qt::black);
painter.drawEllipse(QPoint(33000, 100), 6990, 99);
painter.end();
QCOMPARE(image.pixelColor(27000, 10), Qt::white);
QCOMPARE(image.pixelColor(33000, 10), Qt::black);
QCOMPARE(image.pixelColor(39000, 10), Qt::white);
QCOMPARE(image.pixelColor(27000, 100), Qt::black);
QCOMPARE(image.pixelColor(33000, 100), Qt::black);
QCOMPARE(image.pixelColor(39000, 100), Qt::black);
QCOMPARE(image.pixelColor(27000, 190), Qt::white);
QCOMPARE(image.pixelColor(33000, 190), Qt::black);
QCOMPARE(image.pixelColor(39000, 190), Qt::white);
// Now check grayscale antialiasing takes place in the higher coords
bool grayObserved = false;
for (int x = 33000; x < 39000; ++x) {
QRgb pixel = image.pixel(x, 20);
if (pixel == 0xff000000)
continue; // still black
if (pixel == 0xffffffff) {
QVERIFY(grayObserved);
break;
}
grayObserved = true;
}
// image.save("largeRasterScale.png", "PNG");
}
void tst_QImage::metadataChangeWithReadOnlyPixels()
{
const QRgb data[3] = { qRgb(255, 0, 0), qRgb(0, 255, 0), qRgb(0, 0, 255) };
QImage image((const uchar *)data, 3, 1, QImage::Format_RGB32);
QCOMPARE(image.constBits(), (const uchar *)data);
image.setDotsPerMeterX(100);
QCOMPARE(image.constBits(), (const uchar *)data);
QImage image2 = image;
QCOMPARE(image2.constBits(), (const uchar *)data);
image2.setDotsPerMeterX(200);
// Pixels and metadata has the same sharing mechanism, so a change of a shared
// image metadata forces pixel detach (remove this sub-test if that ever changes).
QVERIFY(image2.constBits() != (const uchar *)data);
QCOMPARE(image.constBits(), (const uchar *)data);
}
#if defined(Q_OS_WIN)
static inline QColor COLORREFToQColor(COLORREF cr)
{
return QColor(GetRValue(cr), GetGValue(cr), GetBValue(cr));
}
void tst_QImage::toWinHBITMAP_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QColor>("color");
QTest::addColumn<QColor>("bottomRightColor");
const QColor red(Qt::red);
const QColor green(Qt::green);
const QColor blue(Qt::blue);
const QColor gray(Qt::gray);
const QColor gray555(0x5a, 0x5a, 0x5a); // Note: Interpolation 8<->5 bit occurs.
const QColor white(Qt::white);
const QColor black(Qt::black);
QTest::newRow("argb32p-red") << QImage::Format_ARGB32_Premultiplied << red << gray;
QTest::newRow("argb32p-green") << QImage::Format_ARGB32_Premultiplied << green << gray;
QTest::newRow("argb32p-blue") << QImage::Format_ARGB32_Premultiplied << blue << gray;
QTest::newRow("rgb888-red") << QImage::Format_RGB888 << red << gray;
QTest::newRow("rgb888-green") << QImage::Format_RGB888 << green << gray;
QTest::newRow("rgb888-blue") << QImage::Format_RGB888 << blue << gray;
QTest::newRow("indexed8-red") << QImage::Format_Indexed8 << red << gray;
QTest::newRow("indexed8-green") << QImage::Format_Indexed8 << green << gray;
QTest::newRow("indexed8-blue") << QImage::Format_Indexed8 << blue << gray;
QTest::newRow("rgb555-red") << QImage::Format_RGB555 << red << gray555;
QTest::newRow("rgb555-green") << QImage::Format_RGB555 << green << gray555;
QTest::newRow("rgb555-blue") << QImage::Format_RGB555 << blue << gray555;
QTest::newRow("mono") << QImage::Format_Mono << white << black;
}
// Test image filled with color, black pixel at botttom right corner.
static inline QImage createTestImage(QImage::Format format, int width, int height,
const QColor &fillColor, const QColor &bottomRightColor)
{
QImage image(QSize(width, height), format);
image.fill(fillColor);
QPainter painter(&image);
QPen pen = painter.pen();
pen.setColor(bottomRightColor);
painter.setPen(pen);
painter.drawPoint(width -1, height - 1);
return image;
}
void tst_QImage::toWinHBITMAP()
{
static const int width = 73;
static const int height = 57;
QFETCH(QImage::Format, format);
QFETCH(QColor, color);
QFETCH(QColor, bottomRightColor);
// Cannot paint on indexed/mono images.
const QImage image = format == QImage::Format_Indexed8 || format == QImage::Format_Mono
? createTestImage(QImage::Format_RGB32, width, height, color, bottomRightColor).convertToFormat(format)
: createTestImage(format, width, height, color, bottomRightColor);
const HBITMAP bitmap = image.toHBITMAP();
QVERIFY(bitmap != 0);
// Verify size
BITMAP bitmapInfo;
memset(&bitmapInfo, 0, sizeof(BITMAP));
const int res = GetObject(bitmap, sizeof(BITMAP), &bitmapInfo);
QVERIFY(res);
QCOMPARE(width, int(bitmapInfo.bmWidth));
QCOMPARE(height, int(bitmapInfo.bmHeight));
const HDC displayDc = GetDC(0);
const HDC bitmapDc = CreateCompatibleDC(displayDc);
const HBITMAP nullBitmap = static_cast<HBITMAP>(SelectObject(bitmapDc, bitmap));
QCOMPARE(COLORREFToQColor(GetPixel(bitmapDc, 0, 0)), color);
QCOMPARE(COLORREFToQColor(GetPixel(bitmapDc, width - 1, 3)), color);
QCOMPARE(COLORREFToQColor(GetPixel(bitmapDc, 3, height - 1)), color);
QCOMPARE(COLORREFToQColor(GetPixel(bitmapDc, width - 1, height - 1)), bottomRightColor);
const QImage convertedBack = QImage::fromHBITMAP(bitmap);
QCOMPARE(convertedBack.convertToFormat(QImage::Format_ARGB32_Premultiplied),
image.convertToFormat(QImage::Format_ARGB32_Premultiplied));
// Clean up
SelectObject(bitmapDc, nullBitmap);
DeleteObject(bitmap);
DeleteDC(bitmapDc);
ReleaseDC(0, displayDc);
}
void tst_QImage::fromMonoHBITMAP() // QTBUG-72343, corruption for mono bitmaps
{
enum : int { width = 32, height = 32, size = width * height / 8 }; // 32x32 mono bitmap
char bitmapData[size];
memset(bitmapData, 0, size);
const HBITMAP hbitmap = CreateBitmap(width, height, /* planes */ 1, /* bitcount */ 1, bitmapData);
const QImage image = QImage::fromHBITMAP(hbitmap);
QCOMPARE(image.size(), QSize(width, height));
QCOMPARE(image.scanLine(0)[0], 0u);
DeleteObject(hbitmap);
}
#endif // Q_OS_WIN
QTEST_GUILESS_MAIN(tst_QImage)
#include "tst_qimage.moc"
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