48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
262 lines
7.6 KiB
C++
262 lines
7.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <qtest.h>
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#include <QtGui>
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#include <private/qpaintengineex_p.h>
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#include <private/qpaintbuffer_p.h>
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class ReplayWidget : public QWidget
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{
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Q_OBJECT
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public:
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ReplayWidget(const QString &filename);
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void paintEvent(QPaintEvent *event);
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void resizeEvent(QResizeEvent *event);
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bool done() const { return m_done; }
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qreal result() const { return m_result; }
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public slots:
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void updateRect();
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public:
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QList<QRegion> updates;
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QPaintBuffer buffer;
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int currentFrame;
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int currentIteration;
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QTime timer;
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QList<uint> visibleUpdates;
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QList<uint> iterationTimes;
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QString filename;
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bool m_done;
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qreal m_result;
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uint m_total;
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};
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void ReplayWidget::updateRect()
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{
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if (!visibleUpdates.isEmpty())
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update(updates.at(visibleUpdates.at(currentFrame)));
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}
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void ReplayWidget::paintEvent(QPaintEvent *)
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{
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if (m_done)
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return;
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QPainter p(this);
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// if partial updates don't work
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// p.setClipRegion(frames.at(currentFrame).updateRegion);
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buffer.draw(&p, visibleUpdates.at(currentFrame));
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++currentFrame;
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if (currentFrame >= visibleUpdates.size()) {
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currentFrame = 0;
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++currentIteration;
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uint currentElapsed = timer.isNull() ? 0 : timer.elapsed();
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timer.restart();
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m_total += currentElapsed;
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// warm up for at most 5 iterations or half a second
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if (currentIteration >= 5 || m_total >= 500) {
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iterationTimes << currentElapsed;
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if (iterationTimes.size() >= 5) {
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qreal mean = 0;
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qreal stddev = 0;
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uint min = INT_MAX;
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for (int i = 0; i < iterationTimes.size(); ++i) {
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mean += iterationTimes.at(i);
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min = qMin(min, iterationTimes.at(i));
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}
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mean /= qreal(iterationTimes.size());
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for (int i = 0; i < iterationTimes.size(); ++i) {
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qreal delta = iterationTimes.at(i) - mean;
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stddev += delta * delta;
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}
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stddev = qSqrt(stddev / iterationTimes.size());
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qSort(iterationTimes.begin(), iterationTimes.end());
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uint median = iterationTimes.at(iterationTimes.size() / 2);
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stddev = 100 * stddev / mean;
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// do 100 iterations, break earlier if we spend more than 5 seconds or have a low std deviation after 2 seconds
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if (iterationTimes.size() >= 100 || m_total >= 5000 || (m_total >= 2000 && stddev < 4)) {
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printf("%s, iterations: %d, frames: %d, min(ms): %d, median(ms): %d, stddev: %f %%, max(fps): %f\n", qPrintable(filename),
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iterationTimes.size(), visibleUpdates.size(), min, median, stddev, 1000. * visibleUpdates.size() / min);
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m_result = min;
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m_done = true;
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return;
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}
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}
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}
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}
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}
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void ReplayWidget::resizeEvent(QResizeEvent * /* event */)
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{
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visibleUpdates.clear();
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QRect bounds = rect();
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for (int i = 0; i < updates.size(); ++i) {
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if (updates.at(i).intersects(bounds))
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visibleUpdates << i;
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}
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if (visibleUpdates.size() != updates.size())
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printf("Warning: skipped %d frames due to limited resolution\n", updates.size() - visibleUpdates.size());
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}
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ReplayWidget::ReplayWidget(const QString &filename_)
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: currentFrame(0)
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, currentIteration(0)
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, filename(filename_)
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, m_done(false)
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, m_result(0)
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, m_total(0)
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{
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setWindowTitle(filename);
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QFile file(filename);
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if (!file.open(QIODevice::ReadOnly)) {
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printf("Failed to load input file '%s'\n", qPrintable(filename_));
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return;
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}
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QDataStream in(&file);
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in.setVersion(QDataStream::Qt_4_7);
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char *data;
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uint size;
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in.readBytes(data, size);
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bool isTraceFile = size >= 7 && qstrncmp(data, "qttrace", 7) == 0;
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uint version = 0;
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if (size == 9 && qstrncmp(data, "qttraceV2", 9) == 0) {
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in.setFloatingPointPrecision(QDataStream::SinglePrecision);
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in >> version;
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}
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delete [] data;
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if (!isTraceFile) {
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printf("File '%s' is not a trace file\n", qPrintable(filename_));
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return;
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}
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in >> buffer >> updates;
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resize(buffer.boundingRect().size().toSize());
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setAutoFillBackground(false);
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setAttribute(Qt::WA_NoSystemBackground);
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}
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class tst_QTraceBench : public QObject
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{
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Q_OBJECT
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private slots:
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void trace();
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void trace_data();
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};
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static const QLatin1String prefix(":/traces/");
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void tst_QTraceBench::trace_data()
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{
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QTest::addColumn<QString>("filename");
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QTest::newRow("basicdrawing") << (prefix + "basicdrawing.trace");
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QTest::newRow("webkit") << (prefix + "webkit.trace");
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QTest::newRow("creator") << (prefix + "creator.trace");
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QTest::newRow("textedit") << (prefix + "textedit.trace");
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QTest::newRow("qmlphoneconcept") << (prefix + "qmlphoneconcept.trace");
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QTest::newRow("qmlsamegame") << (prefix + "qmlsamegame.trace");
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}
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void tst_QTraceBench::trace()
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{
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QFETCH(QString, filename);
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QFile file(filename);
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if (!file.exists()) {
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qWarning() << "Missing file" << filename;
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return;
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}
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ReplayWidget widget(filename);
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if (widget.updates.isEmpty()) {
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qWarning() << "No trace updates" << filename;
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return;
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}
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widget.show();
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QTest::qWaitForWindowShown(&widget);
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while (!widget.done()) {
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widget.updateRect();
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QApplication::processEvents();
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}
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QTest::setBenchmarkResult(widget.result(), QTest::WalltimeMilliseconds);
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}
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QTEST_MAIN(tst_QTraceBench)
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#include "tst_qtracebench.moc"
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