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multiwindow: Base vsync debug output on actual surface format

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Allows us to detect cases where the requested vsync combination was
not possible to fulfill.

Change-Id: Ie8f3665129f7a1ab7fcefb94b2298d54520b753a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This commit is contained in:
Tor Arne Vestbø 2016-08-25 15:04:54 +02:00 committed by Tor Arne Vestbø
parent efdecff085
commit fecee98836
1 changed files with 18 additions and 12 deletions
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30
tests/manual/qopenglwindow/multiwindow/main.cpp
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@ -88,6 +88,18 @@ public slots:
}
protected:
void exposeEvent(QExposeEvent *event) {
if (!isExposed())
return;
QSurfaceFormat format = context()->format();
qDebug() << this << format.swapBehavior() << "with Vsync =" << (format.swapInterval() ? "ON" : "OFF");
if (format.swapInterval() != requestedFormat().swapInterval())
qWarning() << "WARNING: Did not get requested swap interval of" << requestedFormat().swapInterval() << "for" << this;
QOpenGLWindow::exposeEvent(event);
}
void mousePressEvent(QMouseEvent *event) {
qDebug() << this << event;
color.setHsl((color.hue() + 90) % 360, color.saturation(), color.lightness());
@ -158,14 +170,9 @@ int main(int argc, char **argv)
parser.process(app);
QSurfaceFormat fmt;
if (parser.isSet(noVsyncOption)) {
qDebug("swap interval 0 (no throttling)");
fmt.setSwapInterval(0);
} else {
qDebug("swap interval 1 (sync to vblank)");
}
QSurfaceFormat::setDefaultFormat(fmt);
QSurfaceFormat defaultSurfaceFormat;
defaultSurfaceFormat.setSwapInterval(parser.isSet(noVsyncOption) ? 0 : 1);
QSurfaceFormat::setDefaultFormat(defaultSurfaceFormat);
QRect availableGeometry = app.primaryScreen()->availableGeometry();
@ -176,12 +183,11 @@ int main(int argc, char **argv)
windows << w;
if (i == 0 && parser.isSet(vsyncOneOption)) {
qDebug("swap interval 1 for first window only");
QSurfaceFormat vsyncedSurfaceFormat = fmt;
QSurfaceFormat vsyncedSurfaceFormat = defaultSurfaceFormat;
vsyncedSurfaceFormat.setSwapInterval(1);
w->setFormat(vsyncedSurfaceFormat);
fmt.setSwapInterval(0);
QSurfaceFormat::setDefaultFormat(fmt);
defaultSurfaceFormat.setSwapInterval(0);
QSurfaceFormat::setDefaultFormat(defaultSurfaceFormat);
}
static int windowWidth = w->width() + 20;