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diff --git a/tests/benchmarks/opengl/main.cpp b/tests/benchmarks/opengl/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 <QtOpenGL>
+
+#include <qtest.h>
+
+#include <private/qpaintengine_opengl_p.h>
+
+class OpenGLBench : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void initTestCase();
+    void cleanupTestCase();
+
+    void imageDrawing_data();
+    void imageDrawing();
+
+    void pathDrawing_data();
+    void pathDrawing();
+
+    void painterOverhead();
+
+    void startupCost_data();
+    void startupCost();
+
+    void lineDrawing();
+
+    void textDrawing_data();
+    void textDrawing();
+
+    void clippedPainting_data();
+    void clippedPainting();
+
+    void gradients_data();
+    void gradients();
+
+    void textureUpload_data();
+    void textureUpload();
+
+
+private:
+    QGLPixelBuffer *pb;
+};
+
+void OpenGLBench::initTestCase()
+{
+    pb = new QGLPixelBuffer(512, 512);
+
+    QPainter p(pb);
+    p.setRenderHint(QPainter::Antialiasing);
+    p.setRenderHint(QPainter::HighQualityAntialiasing);
+
+    p.drawImage(0, 0, QImage(256, 256, QImage::Format_ARGB32_Premultiplied));
+}
+
+void OpenGLBench::cleanupTestCase()
+{
+    delete pb;
+}
+
+void OpenGLBench::imageDrawing_data()
+{
+    QTest::addColumn<bool>("smoothPixmapTransform");
+    QTest::addColumn<bool>("highQualityAntialiasing");
+    QTest::addColumn<bool>("pixmap");
+
+    for (int i = 0; i < (1 << 3); ++i) {
+        bool smoothPixmapTransform = i & 1;
+        bool highQualityAntialiasing = i & 2;
+        bool pixmap = i & 4;
+
+        QTest::newRow(QString("pixmap=%1 highQualityAntialiasing=%2 smoothPixmapTransform=%3")
+                      .arg(pixmap).arg(highQualityAntialiasing).arg(smoothPixmapTransform).toAscii().data())
+            << pixmap << highQualityAntialiasing << smoothPixmapTransform;
+    }
+}
+
+void OpenGLBench::imageDrawing()
+{
+    QFETCH(bool, smoothPixmapTransform);
+    QFETCH(bool, highQualityAntialiasing);
+    QFETCH(bool, pixmap);
+
+    QImage img;
+    QPixmap pm;
+
+    if (pixmap)
+        pm = QPixmap(800, 800);
+    else
+        img = QImage(800, 800, QImage::Format_ARGB32_Premultiplied);
+
+    QPainter p(pb);
+    p.setRenderHint(QPainter::SmoothPixmapTransform, smoothPixmapTransform);
+    p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);
+    p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);
+
+    QBENCHMARK {
+        if (pixmap) {
+            pm.detach();
+            p.drawPixmap(0, 0, pm);
+        } else {
+            img.detach();
+            p.drawImage(0, 0, img);
+        }
+    }
+}
+
+Q_DECLARE_METATYPE(QPainterPath)
+
+void OpenGLBench::pathDrawing_data()
+{
+    QTest::addColumn<QPainterPath>("path");
+    QTest::addColumn<bool>("highQualityAntialiasing");
+
+    QList<QPair<QPainterPath, QLatin1String> > paths;
+
+    {
+        QPainterPath path;
+        path.addRect(-100, -100, 200, 200);
+        paths << qMakePair(path, QLatin1String("plain rect"));
+    }
+
+    {
+        QPainterPath path;
+        path.addRoundedRect(-100, -100, 200, 200, 50, 50);
+        paths << qMakePair(path, QLatin1String("rounded rect"));
+    }
+
+    {
+        QPainterPath path;
+        path.addEllipse(-100, -100, 200, 200);
+        paths << qMakePair(path, QLatin1String("ellipse"));
+    }
+
+    for (int j = 0; j < (1 << 1); ++j) {
+        bool highQualityAntialiasing = j & 1;
+
+        for (int i = 0; i < paths.size(); ++i) {
+            QTest::newRow(QString("path=%1 highQualityAntialiasing=%2")
+                    .arg(paths[i].second).arg(highQualityAntialiasing).toAscii().data())
+                << paths[i].first << highQualityAntialiasing;
+        }
+    }
+}
+
+void OpenGLBench::pathDrawing()
+{
+    QFETCH(QPainterPath, path);
+    QFETCH(bool, highQualityAntialiasing);
+
+    // warm-up
+    {
+        QPainterPath dummy;
+        dummy.addRect(-1, -1, 2, 2);
+        QPainter p(pb);
+        p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);
+        p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);
+        p.translate(pb->width() / 2, pb->height() / 2);
+        p.rotate(30);
+        p.drawPath(dummy);
+        p.end();
+    }
+
+    QPainter p(pb);
+    p.setPen(Qt::NoPen);
+    p.setBrush(Qt::black);
+    p.translate(pb->width() / 2, pb->height() / 2);
+
+    QBENCHMARK {
+        p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);
+        p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);
+
+        p.rotate(0.01);
+        p.drawPath(path);
+    }
+}
+
+void OpenGLBench::painterOverhead()
+{
+    QBENCHMARK {
+        QPainter p(pb);
+    }
+}
+
+void OpenGLBench::startupCost_data()
+{
+    QTest::addColumn<bool>("highQualityAntialiasing");
+
+    QTest::newRow("highQualityAntialiasing=0") << false;
+    QTest::newRow("highQualityAntialiasing=1") << true;
+}
+
+void OpenGLBench::startupCost()
+{
+    QFETCH(bool, highQualityAntialiasing);
+    QPainterPath path;
+    path.addRoundedRect(-100, -100, 200, 200, 20, 20);
+    QBENCHMARK {
+        QGLPixelBuffer buffer(512, 512);
+        QPainter p(&buffer);
+        p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);
+        p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);
+
+        p.translate(buffer.width() / 2, buffer.height() / 2);
+        p.drawPath(path);
+    }
+}
+
+void OpenGLBench::lineDrawing()
+{
+    QPainter p(pb);
+
+    QBENCHMARK {
+        p.drawLine(10, 10, 500, 500);
+    }
+}
+
+void OpenGLBench::textDrawing_data()
+{
+    QTest::addColumn<int>("lines");
+
+    int lines[] = { 1, 2, 4, 8, 16, 32, 64, 128 };
+
+    QTest::newRow("text lines=1 (warmup run)") << 1;
+    for (unsigned int i = 0; i < sizeof(lines) / sizeof(int); ++i)
+        QTest::newRow(QString("text lines=%0").arg(lines[i]).toAscii().data()) << lines[i];
+}
+
+void OpenGLBench::textDrawing()
+{
+    QPainter p(pb);
+
+    QFETCH(int, lines);
+
+    p.translate(0, 16);
+    QBENCHMARK {
+        for (int i = 0; i < lines; ++i)
+            p.drawText(0, i, "Hello World!");
+    }
+}
+
+void OpenGLBench::clippedPainting_data()
+{
+    QTest::addColumn<QPainterPath>("path");
+
+    QRectF rect = QRectF(0, 0, pb->width(), pb->height()).adjusted(5, 5, -5, -5);
+
+    {
+        QPainterPath path;
+        path.addRect(rect);
+        QTest::newRow("rect path") << path;
+    }
+
+    {
+        QPainterPath path;
+        path.addRoundedRect(rect, 5, 5);
+        QTest::newRow("rounded rect path") << path;
+    }
+
+    {
+        QPainterPath path;
+        path.addEllipse(rect);
+        QTest::newRow("ellipse path") << path;
+    }
+}
+
+void OpenGLBench::clippedPainting()
+{
+    QFETCH(QPainterPath, path);
+
+    QBENCHMARK {
+        QPainter p(pb);
+        p.setPen(Qt::NoPen);
+        p.setBrush(Qt::black);
+
+        p.setClipPath(path);
+        p.drawRect(0, 0, pb->width(), pb->height());
+    }
+}
+
+Q_DECLARE_METATYPE(QGradient::Type)
+
+void OpenGLBench::gradients_data()
+{
+    QTest::addColumn<QGradient::Type>("gradientType");
+    QTest::addColumn<bool>("objectBoundingMode");
+
+    QTest::newRow("warmup run") << QGradient::LinearGradient << false;
+
+    QTest::newRow("linear gradient") << QGradient::LinearGradient << false;
+    QTest::newRow("radial gradient") << QGradient::RadialGradient << false;
+    QTest::newRow("conical gradient") << QGradient::ConicalGradient << false;
+
+    QTest::newRow("linear gradient, object bounding mode") << QGradient::LinearGradient << true;
+    QTest::newRow("radial gradient, object bounding mode") << QGradient::RadialGradient << true;
+    QTest::newRow("conical gradient, object bounding mode") << QGradient::ConicalGradient << true;
+}
+
+void OpenGLBench::gradients()
+{
+    QFETCH(QGradient::Type, gradientType);
+    QFETCH(bool, objectBoundingMode);
+
+    QPointF a;
+    QPointF b = objectBoundingMode ? QPointF(1, 1) : QPointF(pb->width(), pb->height());
+
+    QGradient gradient;
+    switch (gradientType) {
+    case QGradient::LinearGradient:
+        gradient = QLinearGradient(a, b);
+        break;
+    case QGradient::RadialGradient:
+        gradient = QRadialGradient(a, b.x() / 2, b);
+        break;
+    case QGradient::ConicalGradient:
+        gradient = QConicalGradient((a + b)/2, 0);
+        break;
+    default:
+        break;
+    }
+
+    if (objectBoundingMode)
+        gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
+
+    gradient.setColorAt(0, Qt::red);
+    gradient.setColorAt(0.2, Qt::blue);
+    gradient.setColorAt(0.4, Qt::transparent);
+    gradient.setColorAt(0.6, Qt::green);
+    gradient.setColorAt(0.8, Qt::black);
+    gradient.setColorAt(1, Qt::white);
+
+    QPainter p(pb);
+
+    QBENCHMARK {
+        p.fillRect(0, 0, pb->width(), pb->height(), gradient);
+        glFinish();
+    }
+}
+
+void OpenGLBench::textureUpload_data()
+{
+    QTest::addColumn<int>("size");
+    QTest::addColumn<int>("flags");
+    QTest::addColumn<int>("format");
+
+    int sizes[] = { 8, 10, 16, 20, 32, 50, 64, 100, 128, 200, 256, 500, 512, 1000, 1024, 2000, 2048, -1 };
+    int flags[] = { QGLContext::InternalBindOption,
+                  QGLContext::DefaultBindOption,
+                  -1 };
+    int formats[] = { GL_RGB, GL_RGBA, -1 };
+
+    for (int s = 0; sizes[s] != -1; ++s) {
+        for (int f = 0; flags[f] != -1; ++f) {
+            for (int a = 0; formats[a] != -1; ++a) {
+                QByteArray name;
+                name.append("size=").append(QByteArray::number(sizes[s]));
+                name.append(", flags=").append(f == 0 ? "internal" : "default");
+                name.append(", format=").append(a == 0 ? "RGB" : "RGBA");
+                QTest::newRow(name.constData()) << sizes[s] << flags[f] << formats[a];
+            }
+        }
+    }
+}
+
+void OpenGLBench::textureUpload()
+{
+    QFETCH(int, size);
+    QFETCH(int, flags);
+    QFETCH(int, format);
+
+    QPixmap pixmap(size, size);
+
+    if (format == GL_RGB)
+        pixmap.fill(Qt::red);
+    else
+        pixmap.fill(Qt::transparent);
+
+    pb->makeCurrent();
+    QGLContext *context = const_cast<QGLContext *>(QGLContext::currentContext());
+    QTime time;
+
+    time.start();
+    context->bindTexture(pixmap, GL_TEXTURE_2D, format, (QGLContext::BindOptions) flags);
+    QTest::setBenchmarkResult(time.elapsed(), QTest::WalltimeMilliseconds);
+}
+
+QTEST_MAIN(OpenGLBench)
+
+#include "main.moc"