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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include <QString>
#include <qtest.h>
void paint(QPaintDevice *device)
{
QPainter p(device);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(0, 0, device->width(), device->height(), Qt::transparent);
QLinearGradient g(QPoint(0, 0), QPoint(1, 1));
// g.setCoordinateMode(QGradient::ObjectBoundingMode);
g.setColorAt(0, Qt::magenta);
g.setColorAt(0, Qt::white);
// p.setOpacity(0.8);
p.setPen(Qt::NoPen);
p.setBrush(g);
p.setRenderHint(QPainter::Antialiasing);
p.setOpacity(0.9);
p.drawEllipse(0, 0, device->width(), device->height());
}
QLatin1String compositionModes[] = {
QLatin1String("SourceOver"),
QLatin1String("DestinationOver"),
QLatin1String("Clear"),
QLatin1String("Source"),
QLatin1String("Destination"),
QLatin1String("SourceIn"),
QLatin1String("DestinationIn"),
QLatin1String("SourceOut"),
QLatin1String("DestinationOut"),
QLatin1String("SourceAtop"),
QLatin1String("DestinationAtop"),
QLatin1String("Xor"),
//svg 1.2 blend modes
QLatin1String("Plus"),
QLatin1String("Multiply"),
QLatin1String("Screen"),
QLatin1String("Overlay"),
QLatin1String("Darken"),
QLatin1String("Lighten"),
QLatin1String("ColorDodge"),
QLatin1String("ColorBurn"),
QLatin1String("HardLight"),
QLatin1String("SoftLight"),
QLatin1String("Difference"),
QLatin1String("Exclusion")
};
enum BrushType { ImageBrush, SolidBrush };
QLatin1String brushTypes[] = {
QLatin1String("ImageBrush"),
QLatin1String("SolidBrush"),
};
class BlendBench : public QObject
{
Q_OBJECT
private slots:
void blendBench_data();
void blendBench();
void blendBenchAlpha_data();
void blendBenchAlpha();
void unalignedBlendArgb32_data();
void unalignedBlendArgb32();
};
void BlendBench::blendBench_data()
{
int first = 0;
int limit = 12;
if (qApp->arguments().contains("--extended")) {
first = 12;
limit = 24;
}
QTest::addColumn<int>("brushType");
QTest::addColumn<int>("compositionMode");
for (int brush = ImageBrush; brush <= SolidBrush; ++brush)
for (int mode = first; mode < limit; ++mode)
QTest::newRow(QString("brush=%1; mode=%2")
.arg(brushTypes[brush]).arg(compositionModes[mode]).toLatin1().data())
<< brush << mode;
}
void BlendBench::blendBench()
{
QFETCH(int, brushType);
QFETCH(int, compositionMode);
QImage img(512, 512, QImage::Format_ARGB32_Premultiplied);
QImage src(512, 512, QImage::Format_ARGB32_Premultiplied);
paint(&src);
QPainter p(&img);
p.setPen(Qt::NoPen);
p.setCompositionMode(QPainter::CompositionMode(compositionMode));
if (brushType == ImageBrush) {
p.setBrush(QBrush(src));
} else if (brushType == SolidBrush) {
p.setBrush(QColor(127, 127, 127, 127));
}
QBENCHMARK {
p.drawRect(0, 0, 512, 512);
}
}
void BlendBench::blendBenchAlpha_data()
{
blendBench_data();
}
void BlendBench::blendBenchAlpha()
{
QFETCH(int, brushType);
QFETCH(int, compositionMode);
QImage img(512, 512, QImage::Format_ARGB32_Premultiplied);
QImage src(512, 512, QImage::Format_ARGB32_Premultiplied);
paint(&src);
QPainter p(&img);
p.setPen(Qt::NoPen);
p.setCompositionMode(QPainter::CompositionMode(compositionMode));
if (brushType == ImageBrush) {
p.setBrush(QBrush(src));
} else if (brushType == SolidBrush) {
p.setBrush(QColor(127, 127, 127, 127));
}
p.setOpacity(0.7f);
QBENCHMARK {
p.drawRect(0, 0, 512, 512);
}
}
void BlendBench::unalignedBlendArgb32_data()
{
// The performance of blending can depend of the alignment of the data
// on 16 bytes. Some SIMD instruction set have significantly better
// memory access when the memory is aligned on 16 bytes boundary.
// offset in 32 bits words
QTest::addColumn<int>("offset");
QTest::newRow("aligned on 16 bytes") << 0;
QTest::newRow("unaligned by 4 bytes") << 1;
QTest::newRow("unaligned by 8 bytes") << 2;
QTest::newRow("unaligned by 12 bytes") << 3;
}
void BlendBench::unalignedBlendArgb32()
{
const int dimension = 1024;
// We use dst aligned by design. We don't want to test all the combination of alignemnt for src and dst.
// Moreover, it make sense for us to align dst in the implementation because it is accessed more often.
uchar *dstMemory = static_cast<uchar*>(qMallocAligned((dimension * dimension * sizeof(quint32)), 16));
QImage destination(dstMemory, dimension, dimension, QImage::Format_ARGB32_Premultiplied);
destination.fill(0x12345678); // avoid special cases of alpha
uchar *srcMemory = static_cast<uchar*>(qMallocAligned((dimension * dimension * sizeof(quint32)) + 16, 16));
QFETCH(int, offset);
uchar *imageSrcMemory = srcMemory + (offset * sizeof(quint32));
QImage src(imageSrcMemory, dimension, dimension, QImage::Format_ARGB32_Premultiplied);
src.fill(0x87654321);
QPainter painter(&destination);
QBENCHMARK {
painter.drawImage(QPoint(), src);
}
qFreeAligned(srcMemory);
qFreeAligned(dstMemory);
}
QTEST_MAIN(BlendBench)
#include "main.moc"
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