--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/benchmarks/gui/painting/qtracebench/tst_qtracebench.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,262 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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 <private/qpaintengineex_p.h>
+#include <private/qpaintbuffer_p.h>
+
+//TESTED_FILES=
+
+class ReplayWidget : public QWidget
+{
+ Q_OBJECT
+public:
+ ReplayWidget(const QString &filename);
+
+ void paintEvent(QPaintEvent *event);
+ void resizeEvent(QResizeEvent *event);
+
+ bool done() const { return m_done; }
+ qreal result() const { return m_result; }
+
+public slots:
+ void updateRect();
+
+public:
+ QList<QRegion> updates;
+ QPaintBuffer buffer;
+
+ int currentFrame;
+ int currentIteration;
+ QTime timer;
+
+ QList<uint> visibleUpdates;
+ QList<uint> iterationTimes;
+ QString filename;
+
+ bool m_done;
+ qreal m_result;
+
+ uint m_total;
+};
+
+void ReplayWidget::updateRect()
+{
+ if (!visibleUpdates.isEmpty())
+ update(updates.at(visibleUpdates.at(currentFrame)));
+}
+
+void ReplayWidget::paintEvent(QPaintEvent *)
+{
+ if (m_done)
+ return;
+
+ QPainter p(this);
+
+ // if partial updates don't work
+ // p.setClipRegion(frames.at(currentFrame).updateRegion);
+
+ buffer.draw(&p, visibleUpdates.at(currentFrame));
+
+ ++currentFrame;
+ if (currentFrame >= visibleUpdates.size()) {
+ currentFrame = 0;
+ ++currentIteration;
+
+ uint currentElapsed = timer.isNull() ? 0 : timer.elapsed();
+ timer.restart();
+
+ m_total += currentElapsed;
+
+ // warm up for at most 5 iterations or half a second
+ if (currentIteration >= 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());
+
+ qSort(iterationTimes.begin(), iterationTimes.end());
+ uint median = iterationTimes.at(iterationTimes.size() / 2);
+
+ stddev = 100 * stddev / mean;
+ // do 100 iterations, break earlier if we spend more than 5 seconds or have a low std deviation after 2 seconds
+ if (iterationTimes.size() >= 100 || m_total >= 5000 || (m_total >= 2000 && stddev < 4)) {
+ printf("%s, iterations: %d, frames: %d, min(ms): %d, median(ms): %d, stddev: %f %%, max(fps): %f\n", qPrintable(filename),
+ iterationTimes.size(), visibleUpdates.size(), min, median, stddev, 1000. * visibleUpdates.size() / min);
+ m_result = min;
+ m_done = true;
+ return;
+ }
+ }
+ }
+ }
+}
+
+void ReplayWidget::resizeEvent(QResizeEvent *event)
+{
+ visibleUpdates.clear();
+
+ QRect bounds = rect();
+ for (int i = 0; i < updates.size(); ++i) {
+ if (updates.at(i).intersects(bounds))
+ visibleUpdates << i;
+ }
+
+ if (visibleUpdates.size() != updates.size())
+ printf("Warning: skipped %d frames due to limited resolution\n", updates.size() - visibleUpdates.size());
+
+}
+
+ReplayWidget::ReplayWidget(const QString &filename_)
+ : currentFrame(0)
+ , currentIteration(0)
+ , filename(filename_)
+ , m_done(false)
+ , m_result(0)
+ , m_total(0)
+{
+ setWindowTitle(filename);
+ QFile file(filename);
+
+ if (!file.open(QIODevice::ReadOnly)) {
+ printf("Failed to load input file '%s'\n", qPrintable(filename_));
+ return;
+ }
+
+ QDataStream in(&file);
+
+ char *data;
+ uint size;
+ in.readBytes(data, size);
+ bool isTraceFile = size >= 7 && qstrncmp(data, "qttrace", 7) == 0;
+ uint version = 0;
+ if (size == 9 && qstrncmp(data, "qttraceV2", 9) == 0) {
+ in.setFloatingPointPrecision(QDataStream::SinglePrecision);
+ in >> version;
+ }
+
+ delete [] data;
+ if (!isTraceFile) {
+ printf("File '%s' is not a trace file\n", qPrintable(filename_));
+ return;
+ }
+
+ in >> buffer >> updates;
+
+ resize(buffer.boundingRect().size().toSize());
+
+ setAutoFillBackground(false);
+ setAttribute(Qt::WA_NoSystemBackground);
+}
+
+
+class tst_QTraceBench : public QObject
+{
+ Q_OBJECT
+
+private slots:
+ void trace();
+ void trace_data();
+};
+
+static const QLatin1String prefix(":/traces/");
+
+void tst_QTraceBench::trace_data()
+{
+ QTest::addColumn<QString>("filename");
+
+ QTest::newRow("basicdrawing") << (prefix + "basicdrawing.trace");
+ QTest::newRow("webkit") << (prefix + "webkit.trace");
+ QTest::newRow("creator") << (prefix + "creator.trace");
+ QTest::newRow("textedit") << (prefix + "textedit.trace");
+ QTest::newRow("qmlphoneconcept") << (prefix + "qmlphoneconcept.trace");
+ QTest::newRow("qmlsamegame") << (prefix + "qmlsamegame.trace");
+}
+
+void tst_QTraceBench::trace()
+{
+ QFETCH(QString, filename);
+
+ QFile file(filename);
+ if (!file.exists()) {
+ qWarning() << "Missing file" << filename;
+ return;
+ }
+
+ ReplayWidget widget(filename);
+
+ if (widget.updates.isEmpty()) {
+ qWarning() << "No trace updates" << filename;
+ return;
+ }
+
+ widget.show();
+ QTest::qWaitForWindowShown(&widget);
+
+ while (!widget.done()) {
+ widget.updateRect();
+ QApplication::processEvents();
+ }
+
+ QTest::setBenchmarkResult(widget.result(), QTest::WalltimeMilliseconds);
+}
+
+QTEST_MAIN(tst_QTraceBench)
+#include "tst_qtracebench.moc"