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diff --git a/tests/benchmarks/gui/image/blendbench/main.cpp b/tests/benchmarks/gui/image/blendbench/main.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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 <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]).toAscii().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);
+    srcMemory += (offset * sizeof(quint32));
+
+    QImage src(srcMemory, 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"