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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QApplication>
#include <QQuickWidget>
#include <QTime>
#include <QList>
class TimerWidget : public QQuickWidget
{
Q_OBJECT
public:
TimerWidget(const QList<QString> &scripts, QWidget *parent = nullptr)
: QQuickWidget(parent)
{
qmlFiles = scripts;
QObject::connect(this->quickWindow(), &QQuickWindow::beforeFrameBegin, this, &TimerWidget::startTimer);
QObject::connect(this->quickWindow(), &QQuickWindow::afterFrameEnd, this, &TimerWidget::endTimer);
QObject::connect(this, &TimerWidget::finishedSampleSize, this, &TimerWidget::loadNext);
}
public slots:
void startTimer()
{
renderStartAt = QTime::currentTime().msecsSinceStartOfDay();
}
void endTimer()
{
if (renderStartAt < 0) return;
const int now = QTime::currentTime().msecsSinceStartOfDay();
const int renderTime = now-renderStartAt;
numberOfRenders++;
sumOfRenderTime += renderTime;
qInfo() << " Rendering took" << renderTime << "msec. Average:" << sumOfRenderTime/numberOfRenders << "msec (sample size:" << numberOfRenders << ")";
renderStartAt = -1;
if (numberOfRenders >= runSampleSize)
{
executionDuration.insert(currentScript, sumOfRenderTime);
emit finishedSampleSize();
}
}
void loadNext()
{
if (qmlFiles.isEmpty())
{
writeResult();
return;
}
currentScript = qmlFiles.takeFirst();
numberOfRenders = 0;
sumOfRenderTime = 0;
QUrl url(currentScript);
setSource(url);
}
void runScripts()
{
loadNext();
}
void writeResult()
{
for (const auto &i : executionDuration.keys())
{
qInfo() << "Render duration for" << runSampleSize << "Frames of script" << i << ":" << executionDuration[i] << "msec.";
}
this->deleteLater();
QApplication::exit(0);
}
signals:
void finishedSampleSize();
private:
int runSampleSize = 100;
int renderStartAt = -1;
int sumOfRenderTime = 0;
int numberOfRenders = 0;
QString currentScript;
QList<QString> qmlFiles;
QMap<QString, int> executionDuration;
};
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
TimerWidget *w = new TimerWidget({
"qrc:/circles.qml",
"qrc:/rectangles.qml",
"qrc:/polylines.qml",
"qrc:/polygons.qml"
});
w->show();
w->runScripts();
return a.exec();
}
#include "main.moc"
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