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qt5base-lts/tests/auto/gui/image/qimage/tst_qimage.cpp
Lars Knoll c4d8734c50 Avoid out of bounds memory reads when scaling images 
The calculation of the width/height required for the
scaling algorithm was prone to floating point rounding
issues, where the lower value got rounded down, the higher
one rounded up. This could lead to a situation where we
iterated over one more line/pixel in the line than we have
in the source image.

Correct this by passing the dimension of the source image into
the function and bounds checking the values before iterating.

Task-number: QTBUG-35927
Change-Id: If44b2235a479224660d508a0504fec40d724763a
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
2014-03-28 22:52:19 +01:00

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qimage.h>
#include <qimagereader.h>
#include <qlist.h>
#include <qmatrix.h>
#include <stdio.h>
#include <qpainter.h>
#include <private/qdrawhelper_p.h>
Q_DECLARE_METATYPE(QImage::Format)
Q_DECLARE_METATYPE(Qt::GlobalColor)
class tst_QImage : public QObject
{
Q_OBJECT
public:
tst_QImage();
private slots:
void swap();
void create();
void createInvalidXPM();
void createFromUChar();
void formatHandlersInput_data();
void formatHandlersInput();
void setAlphaChannel_data();
void setAlphaChannel();
void alphaChannel();
void convertToFormat_data();
void convertToFormat();
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 copy();
void load();
void loadFromData();
#if !defined(QT_NO_DATASTREAM)
void loadFromDataStream();
#endif
void setPixel_data();
void setPixel();
void setColorCount();
void setColor();
void rasterClipping();
void pointOverloads();
void destructor();
void cacheKey();
void smoothScale();
void smoothScale2();
void smoothScale3();
void smoothScaleBig();
void smoothScaleAlpha();
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();
void fillRGB888();
void rgbSwapped_data();
void rgbSwapped();
void mirrored_data();
void mirrored();
void inplaceRgbSwapped_data();
void inplaceRgbSwapped();
void inplaceMirrored_data();
void inplaceMirrored();
void inplaceRgbMirrored();
void inplaceConversion_data();
void inplaceConversion();
void deepCopyWhenPaintingActive();
void scaled_QTBUG19157();
void convertOverUnPreMul();
void scaled_QTBUG35972();
void cleanupFunctions();
};
tst_QImage::tst_QImage()
{
}
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;
#if !defined(Q_OS_WINCE)
QT_TRY {
#endif
//QImage image(7000000, 7000000, 8, 256, QImage::IgnoreEndian);
QImage image(7000000, 7000000, QImage::Format_Indexed8);
image.setColorCount(256);
cr = !image.isNull();
#if !defined(Q_OS_WINCE)
} QT_CATCH (...) {
}
#endif
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");
const QString prefix = QFINDTESTDATA("images/");
if (prefix.isEmpty())
QFAIL("can not find images directory!");
// add a new line here when a file is added
QTest::newRow("ICO") << "ICO" << prefix + "image.ico";
QTest::newRow("PNG") << "PNG" << prefix + "image.png";
QTest::newRow("GIF") << "GIF" << prefix + "image.gif";
QTest::newRow("BMP") << "BMP" << prefix + "image.bmp";
QTest::newRow("JPEG") << "JPEG" << prefix + "image.jpg";
QTest::newRow("PBM") << "PBM" << prefix + "image.pbm";
QTest::newRow("PGM") << "PGM" << prefix + "image.pgm";
QTest::newRow("PPM") << "PPM" << prefix + "image.ppm";
QTest::newRow("XBM") << "XBM" << prefix + "image.xbm";
QTest::newRow("XPM") << "XPM" << 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()) {
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);
QVERIFY(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);
QImage outAlpha = image.alphaChannel();
QCOMPARE(outAlpha.size(), image.size());
bool allAlphaOk = true;
for (int y=0; y<height; ++y) {
for (int x=0; x<width; ++x) {
allAlphaOk &= outAlpha.pixelIndex(x, y) == alpha;
}
}
QVERIFY(allAlphaOk);
}
void tst_QImage::alphaChannel()
{
QImage img(10, 10, QImage::Format_Mono);
img.setColor(0, Qt::transparent);
img.setColor(1, Qt::black);
img.fill(0);
QPainter p(&img);
p.fillRect(2, 2, 6, 6, Qt::black);
p.end();
QCOMPARE(img.alphaChannel(), img.convertToFormat(QImage::Format_ARGB32).alphaChannel());
}
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 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("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;
}
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::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) {
for (unsigned a2 = 0; a2 < sizeof(alphas) / sizeof(int); ++a2) {
if (a1 == a2)
continue;
for (int x=10; x<18; x+=3) {
for (int y=100; y<108; y+=3) {
QTest::newRow(qPrintable(QString::fromLatin1("x=%1, y=%2, a1=%3, a2=%4").arg(x).arg(y).arg(alphas[a1]).arg(alphas[a2])))
<< 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");
QVector<int> degrees;
degrees << 0 << 90 << 180 << 270;
foreach (int d, degrees) {
QString title = QString("%1 %2").arg(d);
QTest::newRow(qPrintable(title.arg("Format_RGB32")))
<< QImage::Format_RGB32 << d;
QTest::newRow(qPrintable(title.arg("Format_ARGB32")))
<< QImage::Format_ARGB32 << d;
QTest::newRow(qPrintable(title.arg("Format_ARGB32_Premultiplied")))
<< QImage::Format_ARGB32_Premultiplied << d;
QTest::newRow(qPrintable(title.arg("Format_RGB16")))
<< QImage::Format_RGB16 << d;
QTest::newRow(qPrintable(title.arg("Format_ARGB8565_Premultiplied")))
<< QImage::Format_ARGB8565_Premultiplied << d;
QTest::newRow(qPrintable(title.arg("Format_RGB666")))
<< QImage::Format_RGB666 << d;
QTest::newRow(qPrintable(title.arg("Format_RGB555")))
<< QImage::Format_RGB555 << d;
QTest::newRow(qPrintable(title.arg("Format_ARGB8555_Premultiplied")))
<< QImage::Format_ARGB8555_Premultiplied << d;
QTest::newRow(qPrintable(title.arg("Format_RGB888")))
<< QImage::Format_RGB888 << d;
QTest::newRow(qPrintable(title.arg("Format_Indexed8")))
<< QImage::Format_Indexed8 << d;
QTest::newRow(qPrintable(title.arg("Format_RGBX8888")))
<< QImage::Format_RGBX8888 << d;
QTest::newRow(qPrintable(title.arg("Format_RGBA8888_Premultiplied")))
<< QImage::Format_RGBA8888_Premultiplied << 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
QMatrix 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 QMatrix::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::copy()
{
// Task 99250
{
QImage img(16,16,QImage::Format_ARGB32);
img.copy(QRect(1000,1,1,1));
}
}
void tst_QImage::load()
{
const QString prefix = QFINDTESTDATA("images/");
if (prefix.isEmpty())
QFAIL("can not find images directory!");
const QString filePath = 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 prefix = QFINDTESTDATA("images/");
if (prefix.isEmpty())
QFAIL("can not find images directory!");
const QString filePath = 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());
QImage dest;
QVERIFY(dest.loadFromData(ba, "BMP"));
QVERIFY(!dest.isNull());
QCOMPARE(original, dest);
QVERIFY(!dest.loadFromData(QByteArray()));
QVERIFY(dest.isNull());
}
#if !defined(QT_NO_DATASTREAM)
void tst_QImage::loadFromDataStream()
{
const QString prefix = QFINDTESTDATA("images/");
if (prefix.isEmpty())
QFAIL("can not find images directory!");
const QString filePath = 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;
#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
}
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):
{
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):
{
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::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);
QVector<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::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));
QVERIFY(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));
QVERIFY(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;
QVERIFY(image2.cacheKey() == image1.cacheKey());
image2.detach();
QVERIFY(image2.cacheKey() != image1.cacheKey());
QVERIFY(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()
{
int sizes[] = { 2, 4, 8, 10, 16, 20, 32, 40, 64, 100, 101, 128, 0 };
QImage::Format formats[] = { QImage::Format_ARGB32, QImage::Format_RGB32, QImage::Format_Invalid };
for (int i = 0; sizes[i] != 0; ++i) {
for (int j = 0; formats[j] != QImage::Format_Invalid; ++j) {
int size = sizes[i];
QRgb expected = formats[j] == QImage::Format_ARGB32 ? qRgba(63, 127, 255, 255) : qRgb(63, 127, 255);
QImage img(size, size, formats[j]);
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, 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 int(256. * (qrand() / (RAND_MAX + 1.0)));
}
// compares img.scale against the bilinear filtering used by QPainter
void tst_QImage::smoothScale3()
{
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));
}
}
qreal scales[2] = { .5, 2 };
for (int i = 0; i < 2; ++i) {
QImage a = img.scaled(img.size() * scales[i], Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
QImage b(a.size(), a.format());
b.fill(0x0);
QPainter p(&b);
p.setRenderHint(QPainter::SmoothPixmapTransform);
p.scale(scales[i], scales[i]);
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
bool r = true;
r &= qAbs(qRed(ca) - qRed(cb)) <= 18;
r &= qAbs(qGreen(ca) - qGreen(cb)) <= 18;
r &= qAbs(qBlue(ca) - qBlue(cb)) <= 18;
if (!r)
err++;
}
}
QCOMPARE(err, 0);
}
}
void tst_QImage::smoothScaleBig()
{
#if defined(Q_OS_WINCE)
int bigValue = 2000;
#else
int bigValue = 200000;
#endif
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);
}
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);
}
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);
QVector<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);
QVector<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",
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,
};
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;
}
void tst_QImage::fillColor()
{
QFETCH(QImage::Format, format);
QFETCH(Qt::GlobalColor, color);
QFETCH(uint, pixelValue);
QImage image(1, 1, format);
if (image.depth() == 8) {
QVector<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()
{
QImage argb32(1, 1, QImage::Format_ARGB32);
argb32.fill(QColor(255, 0, 0, 127));
QCOMPARE(argb32.pixel(0, 0), qRgba(255, 0, 0, 127));
QImage argb32pm(1, 1, QImage::Format_ARGB32_Premultiplied);
argb32pm.fill(QColor(255, 0, 0, 127));
QCOMPARE(argb32pm.pixel(0, 0), 0x7f7f0000u);
}
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::rgbSwapped_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::newRow("Format_Indexed8") << QImage::Format_Indexed8;
QTest::newRow("Format_RGB32") << QImage::Format_RGB32;
QTest::newRow("Format_ARGB32") << QImage::Format_ARGB32;
QTest::newRow("Format_ARGB32_Premultiplied") << QImage::Format_ARGB32_Premultiplied;
QTest::newRow("Format_RGB16") << QImage::Format_RGB16;
QTest::newRow("Format_ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied;
QTest::newRow("Format_ARGB6666_Premultiplied") << QImage::Format_ARGB6666_Premultiplied;
QTest::newRow("Format_ARGB4444_Premultiplied") << QImage::Format_ARGB4444_Premultiplied;
QTest::newRow("Format_RGB666") << QImage::Format_RGB666;
QTest::newRow("Format_RGB555") << QImage::Format_RGB555;
QTest::newRow("Format_ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied;
QTest::newRow("Format_RGB888") << QImage::Format_RGB888;
QTest::newRow("Format_RGB444") << QImage::Format_RGB444;
QTest::newRow("Format_RGBX8888") << QImage::Format_RGBX8888;
QTest::newRow("Format_RGBA8888_Premultiplied") << QImage::Format_RGBA8888_Premultiplied;
}
void tst_QImage::rgbSwapped()
{
QFETCH(QImage::Format, format);
QImage image(100, 1, format);
image.fill(0);
QVector<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());
}
QImage imageSwappedTwice = imageSwapped.rgbSwapped();
QCOMPARE(image, imageSwappedTwice);
QCOMPARE(memcmp(image.constBits(), imageSwappedTwice.constBits(), image.byteCount()), 0);
}
void tst_QImage::mirrored_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<bool>("swap_vertical");
QTest::addColumn<bool>("swap_horizontal");
QTest::newRow("Format_RGB32, vertical") << QImage::Format_RGB32 << true << false;
QTest::newRow("Format_ARGB32, vertical") << QImage::Format_ARGB32 << true << false;
QTest::newRow("Format_ARGB32_Premultiplied, vertical") << QImage::Format_ARGB32_Premultiplied << true << false;
QTest::newRow("Format_RGB16, vertical") << QImage::Format_RGB16 << true << false;
QTest::newRow("Format_ARGB8565_Premultiplied, vertical") << QImage::Format_ARGB8565_Premultiplied << true << false;
QTest::newRow("Format_ARGB6666_Premultiplied, vertical") << QImage::Format_ARGB6666_Premultiplied << true << false;
QTest::newRow("Format_ARGB4444_Premultiplied, vertical") << QImage::Format_ARGB4444_Premultiplied << true << false;
QTest::newRow("Format_RGB666, vertical") << QImage::Format_RGB666 << true << false;
QTest::newRow("Format_RGB555, vertical") << QImage::Format_RGB555 << true << false;
QTest::newRow("Format_ARGB8555_Premultiplied, vertical") << QImage::Format_ARGB8555_Premultiplied << true << false;
QTest::newRow("Format_RGB888, vertical") << QImage::Format_RGB888 << true << false;
QTest::newRow("Format_RGB444, vertical") << QImage::Format_RGB444 << true << false;
QTest::newRow("Format_RGBX8888, vertical") << QImage::Format_RGBX8888 << true << false;
QTest::newRow("Format_RGBA8888_Premultiplied, vertical") << QImage::Format_RGBA8888_Premultiplied << true << false;
QTest::newRow("Format_Indexed8, vertical") << QImage::Format_Indexed8 << true << false;
QTest::newRow("Format_Mono, vertical") << QImage::Format_Mono << true << false;
QTest::newRow("Format_ARGB32_Premultiplied, horizontal") << QImage::Format_ARGB32_Premultiplied << 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_Indexed8, horizontal") << QImage::Format_Indexed8 << false << true;
QTest::newRow("Format_Mono, horizontal") << QImage::Format_Mono << false << true;
QTest::newRow("Format_ARGB32_Premultiplied, horizontal+vertical") << QImage::Format_ARGB32_Premultiplied << true << true;
QTest::newRow("Format_RGB888, horizontal+vertical") << QImage::Format_RGB888 << true << true;
QTest::newRow("Format_RGB16, horizontal+vertical") << QImage::Format_RGB16 << true << true;
QTest::newRow("Format_Indexed8, horizontal+vertical") << QImage::Format_Indexed8 << true << true;
QTest::newRow("Format_Mono, horizontal+vertical") << QImage::Format_Mono << true << true;
}
void tst_QImage::mirrored()
{
QFETCH(QImage::Format, format);
QFETCH(bool, swap_vertical);
QFETCH(bool, swap_horizontal);
QImage image(16, 16, format);
switch (format) {
case QImage::Format_Mono:
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);
}
}
QImage imageMirroredTwice = imageMirrored.mirrored(swap_horizontal, swap_vertical);
QCOMPARE(image, imageMirroredTwice);
if (format != QImage::Format_Mono)
QCOMPARE(memcmp(image.constBits(), imageMirroredTwice.constBits(), image.byteCount()), 0);
else {
for (int i = 0; i < image.height(); ++i)
for (int j = 0; j < image.width(); ++j)
QCOMPARE(image.pixel(j,i), imageMirroredTwice.pixel(j,i));
}
}
void tst_QImage::inplaceRgbSwapped_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::newRow("Format_ARGB32_Premultiplied") << QImage::Format_ARGB32_Premultiplied;
QTest::newRow("Format_RGBA8888") << QImage::Format_RGBA8888;
QTest::newRow("Format_RGB888") << QImage::Format_RGB888;
QTest::newRow("Format_RGB16") << QImage::Format_RGB16;
QTest::newRow("Format_Indexed8") << QImage::Format_Indexed8;
}
void tst_QImage::inplaceRgbSwapped()
{
#if defined(Q_COMPILER_REF_QUALIFIERS)
QFETCH(QImage::Format, format);
QImage image(64, 1, format);
image.fill(0);
QVector<QRgb> testColor(image.width());
for (int i = 0; i < image.width(); ++i)
testColor[i] = qRgb(i * 2, i * 3, 255 - i * 4);
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) & 0xf8, qBlue(referenceColor) & 0xf8);
QCOMPARE(qGreen(swappedColor) & 0xf8, qGreen(referenceColor) & 0xf8);
QCOMPARE(qBlue(swappedColor) & 0xf8, qRed(referenceColor) & 0xf8);
}
QCOMPARE(imageSwapped.constScanLine(0), orginalPtr);
#endif
}
void tst_QImage::inplaceMirrored_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_Indexed8, vertical") << QImage::Format_Indexed8 << true << false;
QTest::newRow("Format_Mono, vertical") << QImage::Format_Mono << 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_Indexed8, horizontal") << QImage::Format_Indexed8 << false << true;
QTest::newRow("Format_Mono, horizontal") << QImage::Format_Mono << 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;
QTest::newRow("Format_Indexed8, horizontal+vertical") << QImage::Format_Indexed8 << true << true;
QTest::newRow("Format_Mono, horizontal+vertical") << QImage::Format_Mono << 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:
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) {
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);
#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::inplaceConversion_data()
{
QTest::addColumn<QImage::Format>("format");
QTest::addColumn<QImage::Format>("dest_format");
QTest::newRow("Format_ARGB32 -> Format_RGBA8888") << QImage::Format_ARGB32 << QImage::Format_RGBA8888;
QTest::newRow("Format_RGB888 -> Format_ARGB6666_Premultiplied") << QImage::Format_RGB888 << QImage::Format_ARGB6666_Premultiplied;
QTest::newRow("Format_RGB16 -> Format_RGB555") << QImage::Format_RGB16 << QImage::Format_RGB555;
QTest::newRow("Format_RGB666 -> Format_RGB888") << QImage::Format_RGB666 << QImage::Format_RGB888;
QTest::newRow("Format_ARGB8565_Premultiplied, Format_ARGB8555_Premultiplied") << QImage::Format_ARGB8565_Premultiplied << QImage::Format_ARGB8555_Premultiplied;
QTest::newRow("Format_ARGB4444_Premultiplied, Format_RGB444") << QImage::Format_ARGB4444_Premultiplied << QImage::Format_RGB444;
}
void tst_QImage::inplaceConversion()
{
// Test that conversions between RGB formats of the same bitwidth can be done inplace.
#if defined(Q_COMPILER_REF_QUALIFIERS)
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);
for (int i = 0; i < imageConverted.height(); ++i) {
for (int j = 0; j < imageConverted.width(); ++j) {
QRgb convertedColor = imageConverted.pixel(j,i);
QCOMPARE(qRed(convertedColor) & 0xF0, j * 16);
QCOMPARE(qGreen(convertedColor) & 0xF0, i * 16);
}
}
QCOMPARE(imageConverted.constScanLine(0), originalPtr);
#endif
}
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);
}
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 = 0;
{
QImage image(bufferImage.bits(), bufferImage.width(), bufferImage.height(), bufferImage.format(), cleanupFunction, &called);
copy = new QImage(image);
}
QVERIFY(!called);
delete copy;
QVERIFY(called);
}
}
QTEST_GUILESS_MAIN(tst_QImage)
#include "tst_qimage.moc"
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