Add benchmark example for DeclarativeMapItems

Pick-to: 6.5
Change-Id: I42ec79a55eb16d768a3268212272cd06436d24b9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 132 insertions, 0 deletions

diff --git a/tests/benchmarks/mapitems_framecount/main.cpp b/tests/benchmarks/mapitems_framecount/main.cpp
new file mode 100644
index 00000000..8d28e8ec
--- /dev/null
+++ b/tests/benchmarks/mapitems_framecount/main.cpp
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** Copyright (C) 2023 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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"