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Diffstat (limited to 'src/qttracereplay/main.cpp')
| -rw-r--r-- | src/qttracereplay/main.cpp | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/src/qttracereplay/main.cpp b/src/qttracereplay/main.cpp new file mode 100644 index 000000000..771801362 --- /dev/null +++ b/src/qttracereplay/main.cpp @@ -0,0 +1,351 @@ +/**************************************************************************** +** +** 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 tools applications 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 <QtDebug> + +#include <private/qpaintengineex_p.h> +#include <private/qpaintbuffer_p.h> + +class ReplayWidget : public QWidget +{ + Q_OBJECT +public: + ReplayWidget(const QString &filename, int from, int to, bool single, int frame); + + void paintEvent(QPaintEvent *event); + void resizeEvent(QResizeEvent *event); + +public slots: + void updateRect(); + +public: + QList<QRegion> updates; + QPaintBuffer buffer; + + int currentFrame; + int currentIteration; + QTime timer; + + QList<uint> visibleUpdates; + + QVector<uint> iterationTimes; + QString filename; + + int from; + int to; + + bool single; + + int frame; + int currentCommand; +}; + +void ReplayWidget::updateRect() +{ + if (frame >= 0 && !updates.isEmpty()) + update(updates.at(frame)); + else if (!visibleUpdates.isEmpty()) + update(updates.at(visibleUpdates.at(currentFrame))); +} + +const int singleFrameRepeatsPerCommand = 100; +const int singleFrameIterations = 4; + +void ReplayWidget::paintEvent(QPaintEvent *) +{ + QPainter p(this); + + QTimer::singleShot(0, this, SLOT(updateRect())); + +// p.setClipRegion(frames.at(currentFrame).updateRegion); + + if (frame >= 0) { + int start = buffer.frameStartIndex(frame); + int end = buffer.frameEndIndex(frame); + + iterationTimes.resize(end - start); + + int saveRestoreStackDepth = buffer.processCommands(&p, start, start + currentCommand); + + for (int i = 0; i < saveRestoreStackDepth; ++i) + p.restore(); + + const int repeats = currentIteration >= 3 ? singleFrameRepeatsPerCommand : 1; + + ++currentFrame; + if (currentFrame == repeats) { + currentFrame = 0; + if (currentIteration >= 3) { + iterationTimes[currentCommand - 1] = qMin(iterationTimes[currentCommand - 1], uint(timer.elapsed())); + timer.restart(); + } + + if (currentIteration >= singleFrameIterations + 3) { + printf(" # | ms | description\n"); + printf("------+---------+------------------------------------------------------------\n"); + + qSort(iterationTimes); + + int sum = 0; + for (int i = 0; i < iterationTimes.size(); ++i) { + int delta = iterationTimes.at(i); + if (i > 0) + delta -= iterationTimes.at(i-1); + sum += delta; + qreal deltaF = delta / qreal(repeats); + printf("%.5d | %.5f | %s\n", i, deltaF, qPrintable(buffer.commandDescription(start + i))); + } + printf("Total | %.5f | Total frame time\n", sum / qreal(repeats)); + deleteLater(); + return; + } + + if (start + currentCommand >= end) { + currentCommand = 1; + ++currentIteration; + if (currentIteration == 3) { + timer.start(); + iterationTimes.fill(uint(-1)); + } + if (currentIteration >= 3 && currentIteration < singleFrameIterations + 3) + printf("Profiling iteration %d of %d\n", currentIteration - 2, singleFrameIterations); + } else { + ++currentCommand; + } + } + + return; + } + + buffer.draw(&p, visibleUpdates.at(currentFrame)); + + ++currentFrame; + if (currentFrame >= visibleUpdates.size()) { + currentFrame = 0; + ++currentIteration; + + if (single) { + deleteLater(); + return; + } + + if (currentIteration == 3) + timer.start(); + else if (currentIteration > 3) { + iterationTimes << timer.elapsed(); + timer.restart(); + + if (iterationTimes.size() >= 3) { + 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; + + if (iterationTimes.size() >= 10 || 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); + deleteLater(); + return; + } + } + } + } +} + +void ReplayWidget::resizeEvent(QResizeEvent *) +{ + visibleUpdates.clear(); + + QRect bounds = rect(); + + int first = qMax(0, from); + int last = qMin(unsigned(to), unsigned(updates.size())); + for (int i = first; i < last; ++i) { + if (updates.at(i).intersects(bounds)) + visibleUpdates << i; + } + + int range = last - first; + + if (visibleUpdates.size() != range) + printf("Warning: skipped %d frames due to limited resolution\n", range - visibleUpdates.size()); + +} + +ReplayWidget::ReplayWidget(const QString &filename_, int from_, int to_, bool single_, int frame_) + : currentFrame(0) + , currentIteration(0) + , filename(filename_) + , from(from_) + , to(to_) + , single(single_) + , frame(frame_) + , currentCommand(1) +{ + 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; + } + + if (!isTraceFile) { + printf("File '%s' is not a trace file\n", qPrintable(filename_)); + return; + } + + in >> buffer >> updates; + printf("Read paint buffer version %d with %d frames\n", version, buffer.numFrames()); + + resize(buffer.boundingRect().size().toSize()); + + setAutoFillBackground(false); + setAttribute(Qt::WA_NoSystemBackground); + + QTimer::singleShot(10, this, SLOT(updateRect())); +} + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + if (argc <= 1 || qstrcmp(argv[1], "-h") == 0 || qstrcmp(argv[1], "--help") == 0) { + printf("Replays a tracefile generated with '-graphicssystem trace'\n"); + printf("Usage:\n > %s [OPTIONS] [traceFile]\n", argv[0]); + printf("OPTIONS\n" + " --range=from-to to specify a frame range.\n" + " --singlerun to do only one run (without statistics)\n" + " --instrumentframe=frame to instrument a single frame\n"); + return 1; + } + + QFile file(app.arguments().last()); + if (!file.exists()) { + printf("%s does not exist\n", qPrintable(app.arguments().last())); + return 1; + } + + bool single = false; + + int frame = -1; + + int from = 0; + int to = -1; + for (int i = 1; i < app.arguments().size() - 1; ++i) { + QString arg = app.arguments().at(i); + if (arg.startsWith(QLatin1String("--range="))) { + QString rest = arg.mid(8); + QStringList components = rest.split(QLatin1Char('-')); + + bool ok1 = false; + bool ok2 = false; + int fromCandidate = 0; + int toCandidate = 0; + if (components.size() == 2) { + fromCandidate = components.first().toInt(&ok1); + toCandidate = components.last().toInt(&ok2); + } + + if (ok1 && ok2) { + from = fromCandidate; + to = toCandidate; + } else { + printf("ERROR: malformed syntax in argument %s\n", qPrintable(arg)); + } + } else if (arg == QLatin1String("--singlerun")) { + single = true; + } else if (arg.startsWith(QLatin1String("--instrumentframe="))) { + QString rest = arg.mid(18); + bool ok = false; + int frameCandidate = rest.toInt(&ok); + if (ok) { + frame = frameCandidate; + } else { + printf("ERROR: malformed syntax in argument %s\n", qPrintable(arg)); + } + } else { + printf("Unrecognized argument: %s\n", qPrintable(arg)); + return 1; + } + } + + ReplayWidget *widget = new ReplayWidget(app.arguments().last(), from, to, single, frame); + + if (!widget->updates.isEmpty()) { + widget->show(); + return app.exec(); + } + +} +#include "main.moc" |