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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 254 insertions, 0 deletions

diff --git a/tests/benchmarks/gui/painting/qtbench/tst_qtbench.cpp b/tests/benchmarks/gui/painting/qtbench/tst_qtbench.cpp
new file mode 100644
index 0000000000..d8082cc2e0
--- /dev/null
+++ b/tests/benchmarks/gui/painting/qtbench/tst_qtbench.cpp
@@ -0,0 +1,254 @@
+/****************************************************************************
+**
+** 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 <qtest.h>
+
+#include <QtGui>
+
+#include "benchmarktests.h"
+
+//TESTED_FILES=
+
+class BenchWidget : public QWidget
+{
+public:
+    BenchWidget(Benchmark *benchmark);
+
+    void paintEvent(QPaintEvent *event);
+
+    bool done() const { return m_done; }
+    qreal result() const { return m_result; }
+
+public:
+    QTime timer;
+
+    Benchmark *m_benchmark;
+
+    bool m_done;
+    qreal m_result;
+
+    uint m_total;
+    uint m_iteration;
+
+    QVector<uint> iterationTimes;
+};
+
+void BenchWidget::paintEvent(QPaintEvent *)
+{
+    if (m_done)
+        return;
+
+    QPainter p(this);
+
+    m_benchmark->begin(&p, 100);
+
+    PaintingRectAdjuster adjuster;
+    adjuster.setNewBenchmark(m_benchmark);
+    adjuster.reset(rect());
+
+    for (int i = 0; i < 100; ++i)
+        m_benchmark->draw(&p, adjuster.newPaintingRect(), i);
+
+    m_benchmark->end(&p);
+
+    ++m_iteration;
+
+    uint currentElapsed = timer.isNull() ? 0 : timer.elapsed();
+    timer.restart();
+
+    m_total += currentElapsed;
+
+    // warm up for at most 5 iterations or half a second
+    if (m_iteration >= 5 || m_total >= 500) {
+        iterationTimes << currentElapsed;
+
+        if (iterationTimes.size() >= 5) {
+            qreal mean = 0;
+            qreal stddev = 0;
+            uint min = INT_MAX;
+
+            for (int i = 0; i < iterationTimes.size(); ++i) {
+                mean += iterationTimes.at(i);
+                min = qMin(min, iterationTimes.at(i));
+            }
+
+            mean /= qreal(iterationTimes.size());
+
+            for (int i = 0; i < iterationTimes.size(); ++i) {
+                qreal delta = iterationTimes.at(i) - mean;
+                stddev += delta * delta;
+            }
+
+            stddev = qSqrt(stddev / iterationTimes.size());
+
+            stddev = 100 * stddev / mean;
+            // do 50 iterations, break earlier if we spend more than 5 seconds or have a low std deviation after 2 seconds
+            if (iterationTimes.size() >= 50 || m_total >= 5000 || (m_total >= 2000 && stddev < 4)) {
+                m_result = min;
+                m_done = true;
+                return;
+            }
+        }
+    }
+}
+
+BenchWidget::BenchWidget(Benchmark *benchmark)
+    : m_benchmark(benchmark)
+    , m_done(false)
+    , m_result(0)
+    , m_total(0)
+    , m_iteration(0)
+{
+    setWindowTitle(benchmark->name());
+    resize(640, 480);
+}
+
+class tst_QtBench : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void qtBench();
+    void qtBench_data();
+};
+
+QString makeString(int length)
+{
+    const char chars[] = "abcd efgh ijkl mnop qrst uvwx yz!$. ABCD 1234";
+    int len = strlen(chars);
+
+    QString ret;
+    for (int j = 0; j < length; j++) {
+        ret += QChar(chars[(j * 97) % len]);
+    }
+
+    return ret;
+}
+
+void tst_QtBench::qtBench_data()
+{
+    QTest::addColumn<void *>("benchmark");
+
+    QString shortString = makeString(5);
+    QString middleString = makeString(50);
+    QString longString = makeString(35) + "\n"
+                         + makeString(45) + "\n"
+                         + makeString(75);
+    QString superLongString = "Lorem ipsum dolor sit am\n"
+                              "et, consectetur adipisci\n"
+                              "ng elit. Integer mi leo,\n"
+                              "interdum ut congue at, p\n"
+                              "ulvinar et tellus. Quisq\n"
+                              "ue pretium eleifend laci\n"
+                              "nia. Ut semper gravida l\n"
+                              "ectus in commodo. Vestib\n"
+                              "ulum pharetra arcu in en\n"
+                              "im ultrices hendrerit. P\n"
+                              "ellentesque habitant mor\n"
+                              "bi tristique senectus et\n"
+                              "netus et malesuada fames\n"
+                              "ac turpis egestas. Ut er\n"
+                              "os sem, feugiat in eleme\n"
+                              "ntum in, porta sit amet \n"
+                              "neque. Fusce mi tellus, \n"
+                              "congue non dapibus eget,\n"
+                              "pharetra quis quam. Duis\n"
+                              "dui massa, pulvinar ac s\n"
+                              "odales pharetra, dictum \n"
+                              "in enim. Phasellus a nis\n"
+                              "i erat, sed pellentesque\n"
+                              "mi. Curabitur sed.";
+
+    QList<Benchmark *> benchmarks;
+    benchmarks << (new DrawText(shortString, DrawText::PainterMode));
+    benchmarks << (new DrawText(middleString, DrawText::PainterMode));
+    benchmarks << (new DrawText(longString, DrawText::PainterMode));
+    benchmarks << (new DrawText(superLongString, DrawText::PainterMode));
+
+    benchmarks << (new DrawText(shortString, DrawText::PainterQPointMode));
+    benchmarks << (new DrawText(middleString, DrawText::PainterQPointMode));
+    benchmarks << (new DrawText(longString, DrawText::PainterQPointMode));
+    benchmarks << (new DrawText(superLongString, DrawText::PainterQPointMode));
+
+    benchmarks << (new DrawText(shortString, DrawText::PixmapMode));
+    benchmarks << (new DrawText(middleString, DrawText::PixmapMode));
+    benchmarks << (new DrawText(longString, DrawText::PixmapMode));
+    benchmarks << (new DrawText(superLongString, DrawText::PixmapMode));
+
+#if QT_VERSION >= 0x040700
+    benchmarks << (new DrawText(shortString, DrawText::StaticTextMode));
+    benchmarks << (new DrawText(middleString, DrawText::StaticTextMode));
+    benchmarks << (new DrawText(longString, DrawText::StaticTextMode));
+    benchmarks << (new DrawText(superLongString, DrawText::StaticTextMode));
+
+    benchmarks << (new DrawText(shortString, DrawText::StaticTextWithMaximumSizeMode));
+    benchmarks << (new DrawText(middleString, DrawText::StaticTextWithMaximumSizeMode));
+    benchmarks << (new DrawText(longString, DrawText::StaticTextWithMaximumSizeMode));
+    benchmarks << (new DrawText(superLongString, DrawText::StaticTextWithMaximumSizeMode));
+
+    benchmarks << (new DrawText(shortString, DrawText::StaticTextBackendOptimizations));
+    benchmarks << (new DrawText(middleString, DrawText::StaticTextBackendOptimizations));
+    benchmarks << (new DrawText(longString, DrawText::StaticTextBackendOptimizations));
+    benchmarks << (new DrawText(superLongString, DrawText::StaticTextBackendOptimizations));
+#endif
+
+    foreach (Benchmark *benchmark, benchmarks)
+        QTest::newRow(qPrintable(benchmark->name())) << reinterpret_cast<void *>(benchmark);
+}
+
+void tst_QtBench::qtBench()
+{
+    QFETCH(void *, benchmark);
+
+    BenchWidget widget(reinterpret_cast<Benchmark *>(benchmark));
+    widget.show();
+    QTest::qWaitForWindowShown(&widget);
+
+    while (!widget.done()) {
+        widget.update();
+        QApplication::processEvents();
+    }
+
+    QTest::setBenchmarkResult(widget.result(), QTest::WalltimeMilliseconds);
+}
+
+QTEST_MAIN(tst_QtBench)
+#include "tst_qtbench.moc"