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-rw-r--r--tests/manual/qopenglwindow/multiwindow/main.cpp141
1 files changed, 85 insertions, 56 deletions
diff --git a/tests/manual/qopenglwindow/multiwindow/main.cpp b/tests/manual/qopenglwindow/multiwindow/main.cpp
index e2a2d899a0..0788408b47 100644
--- a/tests/manual/qopenglwindow/multiwindow/main.cpp
+++ b/tests/manual/qopenglwindow/multiwindow/main.cpp
@@ -32,26 +32,22 @@
#include <QOpenGLFunctions>
#include <QPainter>
#include <QElapsedTimer>
+#include <QCommandLineParser>
+#include <QScreen>
+
+const char applicationDescription[] = "\n\
+This application opens multiple windows and continuously schedules updates for\n\
+them. Each of them is a separate QOpenGLWindow so there will be a separate\n\
+context and swapBuffers call for each.\n\
+\n\
+By default the swap interval is 1 so the effect of multiple blocking swapBuffers\n\
+on the main thread can be examined. (the result is likely to be different\n\
+between platforms, for example OS X is buffer queuing meaning that it can\n\
+block outside swap, resulting in perfect vsync for all three windows, while\n\
+other systems that block on swap will kill the frame rate due to blocking the\n\
+thread three times)\
+";
-// This application opens three windows and continuously schedules updates for
-// them. Each of them is a separate QOpenGLWindow so there will be a separate
-// context and swapBuffers call for each.
-//
-// By default the swap interval is 1 so the effect of three blocking swapBuffers
-// on the main thread can be examined. (the result is likely to be different
-// between platforms, for example OS X is buffer queuing meaning that it can
-// block outside swap, resulting in perfect vsync for all three windows, while
-// other systems that block on swap will kill the frame rate due to blocking the
-// thread three times)
-//
-// Pass --novsync to set a swap interval of 0. This should give an unthrottled
-// refresh on all platforms for all three windows.
-//
-// Passing --vsyncone sets swap interval to 1 for the first window and 0 to the
-// others.
-//
-// Pass --extrawindows N to open N windows in addition to the default 3.
-//
// For reference, below is a table of some test results.
//
// swap interval 1 for all swap interval 1 for only one and 0 for others
@@ -64,12 +60,15 @@
class Window : public QOpenGLWindow
{
+ Q_OBJECT
public:
Window(int n) : idx(n) {
r = g = b = fps = 0;
y = 0;
resize(200, 200);
- t2.start();
+
+ connect(this, SIGNAL(frameSwapped()), SLOT(frameSwapped()));
+ fpsTimer.start();
}
void paintGL() {
@@ -101,27 +100,52 @@ public:
if (y > height() - 20)
y = 20;
- if (t2.elapsed() > 1000) {
- fps = 1000.0 / t.elapsed();
- t2.restart();
- }
- t.restart();
-
update();
}
+public slots:
+ void frameSwapped() {
+ ++framesSwapped;
+ if (fpsTimer.elapsed() > 1000) {
+ fps = qRound(framesSwapped * (1000.0 / fpsTimer.elapsed()));
+ framesSwapped = 0;
+ fpsTimer.restart();
+ }
+ }
+
private:
int idx;
- GLfloat r, g, b, fps;
+ GLfloat r, g, b;
int y;
- QElapsedTimer t, t2;
+
+ int framesSwapped;
+ QElapsedTimer fpsTimer;
+ int fps;
};
int main(int argc, char **argv)
{
QGuiApplication app(argc, argv);
+
+ QCommandLineParser parser;
+ parser.setApplicationDescription(applicationDescription);
+ parser.addHelpOption();
+
+ QCommandLineOption noVsyncOption("novsync", "Disable Vsync by setting swap interval to 0. "
+ "This should give an unthrottled refresh on all platforms for all windows.");
+ parser.addOption(noVsyncOption);
+
+ QCommandLineOption vsyncOneOption("vsyncone", "Enable Vsync only for first window, "
+ "by setting swap interval to 1 for the first window and 0 for the others.");
+ parser.addOption(vsyncOneOption);
+
+ QCommandLineOption numWindowsOption("numwindows", "Open <N> windows instead of the default 3.", "N", "3");
+ parser.addOption(numWindowsOption);
+
+ parser.process(app);
+
QSurfaceFormat fmt;
- if (QGuiApplication::arguments().contains(QLatin1String("--novsync"))) {
+ if (parser.isSet(noVsyncOption)) {
qDebug("swap interval 0 (no throttling)");
fmt.setSwapInterval(0);
} else {
@@ -129,36 +153,41 @@ int main(int argc, char **argv)
}
QSurfaceFormat::setDefaultFormat(fmt);
- Window w1(0);
- if (QGuiApplication::arguments().contains(QLatin1String("--vsyncone"))) {
- qDebug("swap interval 1 for first window only");
- QSurfaceFormat w1fmt = fmt;
- w1fmt.setSwapInterval(1);
- w1.setFormat(w1fmt);
- fmt.setSwapInterval(0);
- QSurfaceFormat::setDefaultFormat(fmt);
- }
- Window w2(1);
- Window w3(2);
- w1.setGeometry(QRect(QPoint(10, 100), w1.size()));
- w2.setGeometry(QRect(QPoint(300, 100), w2.size()));
- w3.setGeometry(QRect(QPoint(600, 100), w3.size()));
- w1.show();
- w2.show();
- w3.show();
-
- QList<QWindow *> extraWindows;
- int countIdx;
- if ((countIdx = QGuiApplication::arguments().indexOf(QLatin1String("--extrawindows"))) >= 0) {
- int extraWindowCount = QGuiApplication::arguments().at(countIdx + 1).toInt();
- for (int i = 0; i < extraWindowCount; ++i) {
- Window *w = new Window(3 + i);
- extraWindows << w;
- w->show();
+ QRect availableGeometry = app.primaryScreen()->availableGeometry();
+
+ int numberOfWindows = qMax(parser.value(numWindowsOption).toInt(), 1);
+ QList<QWindow *> windows;
+ for (int i = 0; i < numberOfWindows; ++i) {
+ Window *w = new Window(i + 1);
+ windows << w;
+
+ if (i == 0 && parser.isSet(vsyncOneOption)) {
+ qDebug("swap interval 1 for first window only");
+ QSurfaceFormat vsyncedSurfaceFormat = fmt;
+ vsyncedSurfaceFormat.setSwapInterval(1);
+ w->setFormat(vsyncedSurfaceFormat);
+ fmt.setSwapInterval(0);
+ QSurfaceFormat::setDefaultFormat(fmt);
}
+
+ static int windowWidth = w->width() + 20;
+ static int windowHeight = w->height() + 20;
+
+ static int windowsPerRow = availableGeometry.width() / windowWidth;
+
+ int col = i;
+ int row = col / windowsPerRow;
+ col -= row * windowsPerRow;
+
+ QPoint position = availableGeometry.topLeft();
+ position += QPoint(col * windowWidth, row * windowHeight);
+ w->setFramePosition(position);
+ w->show();
}
int r = app.exec();
- qDeleteAll(extraWindows);
+ qDeleteAll(windows);
return r;
}
+
+#include "main.moc"