/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
//TESTED_CLASS=
//TESTED_FILES=
#if defined(Q_OS_SYMBIAN)
# define SRCDIR ""
#endif
Q_DECLARE_METATYPE(QImage::Format)
class tst_QImage : public QObject
{
Q_OBJECT
public:
tst_QImage();
private slots:
void create();
void createInvalidXPM();
void createFromUChar();
void convertBitOrder();
void formatHandlersInput_data();
void formatHandlersInput();
void setAlphaChannel_data();
void setAlphaChannel();
void alphaChannel();
void convertToFormat_data();
void convertToFormat();
void createAlphaMask_data();
void createAlphaMask();
#ifndef QT_NO_IMAGE_HEURISTIC_MASK
void createHeuristicMask();
#endif
void dotsPerMeterZero();
void convertToFormatPreserveDotsPrMeter();
#ifndef QT_NO_IMAGE_TEXT
void convertToFormatPreserveText();
#endif
void rotate_data();
void rotate();
void copy();
void setPixel_data();
void setPixel();
void setNumColors();
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();
};
tst_QImage::tst_QImage()
{
}
// 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_WS_QWS) && !defined(Q_OS_WINCE)
try {
#endif
//QImage image(7000000, 7000000, 8, 256, QImage::IgnoreEndian);
QImage image(7000000, 7000000, QImage::Format_Indexed8);
image.setNumColors(256);
cr = !image.isNull();
#if !defined(Q_WS_QWS) && !defined(Q_OS_WINCE)
} 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()
{
uchar data[] = {
#if Q_BYTE_ORDER == Q_BIG_ENDIAN
0xFF,
#endif
1,1,1, 0xFF, 2,2,2, 0xFF, 3,3,3, 0xFF, 4,4,4,
#if Q_BYTE_ORDER != Q_BIG_ENDIAN
0xFF,
#endif
};
// 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()) = 7U;
QCOMPARE(i1.pixel(0,0), 7U);
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()) = 7U;
QCOMPARE(i2.pixel(0,0), 7U);
QCOMPARE(*(QRgb*)data, 7U);
// 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 = 6U;
QCOMPARE(i3.pixel(0,0), 6U);
QCOMPARE(i4.pixel(0,0), 6U);
}
void tst_QImage::convertBitOrder()
{
#if !defined(QT3_SUPPORT)
QSKIP("Qt compiled without Qt3Support", SkipAll);
#else
QImage i(9,5,1,2,QImage::LittleEndian);
qMemSet(i.bits(), 0, i.numBytes());
i.setDotsPerMeterX(9);
i.setDotsPerMeterY(5);
i.fill(0x12345678);
QVERIFY(!i.isNull());
QImage ni = i.convertBitOrder(QImage::BigEndian);
QVERIFY(!ni.isNull());
QVERIFY(ni.bitOrder() == QImage::BigEndian);
// A bunch of verifies to make sure that nothing was lost
QVERIFY(i.dotsPerMeterX() == ni.dotsPerMeterX());
QVERIFY(i.dotsPerMeterY() == ni.dotsPerMeterY());
QVERIFY(i.depth() == ni.depth());
QVERIFY(i.size() == ni.size());
QVERIFY(i.numColors() == ni.numColors());
#endif
}
void tst_QImage::formatHandlersInput_data()
{
QTest::addColumn<QString>("testFormat");
QTest::addColumn<QString>("testFile");
#ifdef Q_OS_SYMBIAN
const QString prefix = QLatin1String(SRCDIR) + "images/";
#else
const QString prefix = QLatin1String(SRCDIR) + "/images/";
#endif
// 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";
#if defined QTEST_HAVE_TIFF
QTest::newRow("TIFF") << "TIFF" << prefix + "image.tif";
#endif
}
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(), SkipSingle);
}
}
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.setNumColors(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;
}
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(), 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(), 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::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);
}
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;
}
}
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.setNumColors(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));
}
for (int y = 0; y < h; ++y) {
original.setPixel(0, y, y % n);
original.setPixel(w - 1, y, n - (y % n));
}
}
// 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::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 << 0xffff0000;
QTest::newRow("ARGB8565_Premultiplied green") << int(QImage::Format_ARGB8565_Premultiplied)
<< 0xff00ff00 << 0xff00ff00;
QTest::newRow("ARGB8565_Premultiplied blue") << int(QImage::Format_ARGB8565_Premultiplied)
<< 0xff0000ff << 0xff0000ff;
QTest::newRow("RGB666 red") << int(QImage::Format_RGB666)
<< 0xffff0000 << 0xffff0000;
QTest::newRow("RGB666 green") << int(QImage::Format_RGB666)
<< 0xff00ff00 << 0xff00ff00;;
QTest::newRow("RGB666 blue") << int(QImage::Format_RGB666)
<< 0xff0000ff << 0xff0000ff;
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 << 0xffff0000;
QTest::newRow("ARGB8555_Premultiplied green") << int(QImage::Format_ARGB8555_Premultiplied)
<< 0xff00ff00 << 0xff00ff00;
QTest::newRow("ARGB8555_Premultiplied blue") << int(QImage::Format_ARGB8555_Premultiplied)
<< 0xff0000ff << 0xff0000ff;
QTest::newRow("RGB888 red") << int(QImage::Format_RGB888)
<< 0xffff0000 << 0xffff0000;
QTest::newRow("RGB888 green") << int(QImage::Format_RGB888)
<< 0xff00ff00 << 0xff00ff00;
QTest::newRow("RGB888 blue") << int(QImage::Format_RGB888)
<< 0xff0000ff << 0xff0000ff;
}
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):
{
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):
{
for (int y = 0; y < h; ++y) {
const qrgb666 *row = (const qrgb666*)(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;
}
case int(QImage::Format_ARGB8565_Premultiplied):
{
for (int y = 0; y < h; ++y) {
const qargb8565 *row = (const qargb8565*)(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;
}
case int(QImage::Format_ARGB8555_Premultiplied):
{
for (int y = 0; y < h; ++y) {
const qargb8555 *row = (const qargb8555*)(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;
}
case int(QImage::Format_RGB888):
{
for (int y = 0; y < h; ++y) {
const qrgb888 *row = (const qrgb888*)(img.scanLine(y));
for (int x = 0; x < w; ++x) {
qrgb888 result = row[x];
if (result != expected)
printf("[x,y]: %d,%d, expected=%04x, result=%04x\n",
x, y, expected, quint32(result));
QCOMPARE(uint(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);
}
#ifndef QT_NO_IMAGE_TEXT
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);
}
#endif // QT_NO_IMAGE_TEXT
void tst_QImage::setNumColors()
{
QImage img(0, 0, QImage::Format_Indexed8);
QTest::ignoreMessage(QtWarningMsg, "QImage::setNumColors: null image");
img.setNumColors(256);
QCOMPARE(img.numColors(), 0);
}
void tst_QImage::setColor()
{
QImage img(0, 0, QImage::Format_Indexed8);
img.setColor(0, qRgba(18, 219, 108, 128));
QCOMPARE(img.numColors(), 0);
QImage img2(1, 1, QImage::Format_Indexed8);
img2.setColor(0, qRgba(18, 219, 108, 128));
QCOMPARE(img2.numColors(), 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)));
}
static inline bool compare(int a, int b, int tolerance)
{
return qAbs(a - b) <= tolerance;
}
// 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();
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
QVERIFY(compare(qRed(ca), qRed(cb), 3));
QVERIFY(compare(qGreen(ca), qGreen(cb), 3));
QVERIFY(compare(qBlue(ca), qBlue(cb), 3));
}
}
}
}
void tst_QImage::smoothScaleBig()
{
#if defined(Q_OS_WINCE)
int bigValue = 2000;
#elif defined(Q_OS_SYMBIAN)
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);
}
QTEST_MAIN(tst_QImage)
#include "tst_qimage.moc"