/*
* Render the contents of this window. First polish, then sync, render
* then finally swap.
*
* Note: This render function does not implement aborting
* the render call when sync step results in no scene graph changes,
* like the threaded renderer does.
*/
void QSGWindowsRenderLoop::renderWindow(QQuickWindow *window)
{
RLDEBUG("renderWindow");
QQuickWindowPrivate *d = QQuickWindowPrivate::get(window);
if (!d->isRenderable())
return;
if (!m_gl->makeCurrent(window))
return;
QSG_RENDER_TIMING_SAMPLE(time_start);
RLDEBUG(" - polishing");
d->polishItems();
QSG_RENDER_TIMING_SAMPLE(time_polished);
RLDEBUG(" - syncing");
d->syncSceneGraph();
QSG_RENDER_TIMING_SAMPLE(time_synced);
RLDEBUG(" - rendering");
d->renderSceneGraph(window->size());
QSG_RENDER_TIMING_SAMPLE(time_rendered);
RLDEBUG(" - swapping");
m_gl->swapBuffers(window);
QSG_RENDER_TIMING_SAMPLE(time_swapped);
RLDEBUG(" - frameDone");
d->fireFrameSwapped();
#ifndef QSG_NO_RENDER_TIMING
if (qsg_render_timing) {
qDebug("WindowsRenderLoop(t=%d): window=%p, polish=%d ms, sync=%d ms, render=%d ms, swap=%d ms",
int(qsg_render_timer.elapsed()),
window,
int((time_polished - time_start)/1000000),
int((time_synced - time_polished)/1000000),
int((time_rendered - time_synced)/1000000),
int((time_swapped - time_rendered)/1000000));
}
if (QQmlProfilerService::enabled) {
QQmlProfilerService::sceneGraphFrame(
QQmlProfilerService::SceneGraphWindowsPolishFrame,
time_polished - time_start
);
QQmlProfilerService::sceneGraphFrame(
QQmlProfilerService::SceneGraphRenderLoopFrame,
time_synced - time_polished,
time_rendered - time_synced,
time_swapped - time_rendered
);
}
#endif
}
/*
* Render the contents of this window. First polish, then sync, render
* then finally swap.
*
* Note: This render function does not implement aborting
* the render call when sync step results in no scene graph changes,
* like the threaded renderer does.
*/
void QSGWindowsRenderLoop::renderWindow(QQuickWindow *window)
{
RLDEBUG("renderWindow");
QQuickWindowPrivate *d = QQuickWindowPrivate::get(window);
if (!d->isRenderable())
return;
if (!m_gl->makeCurrent(window)) {
// Check for context loss.
if (!m_gl->isValid()) {
d->cleanupNodesOnShutdown();
m_rc->invalidate();
if (m_gl->create() && m_gl->makeCurrent(window))
m_rc->initialize(m_gl);
else
return;
}
}
d->flushDelayedTouchEvent();
// Event delivery or processing has caused the window to stop rendering.
if (!windowData(window))
return;
QSG_LOG_TIME_SAMPLE(time_start);
Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphPolishFrame);
RLDEBUG(" - polishing");
d->polishItems();
QSG_LOG_TIME_SAMPLE(time_polished);
Q_QUICK_SG_PROFILE_SWITCH(QQuickProfiler::SceneGraphPolishFrame,
QQuickProfiler::SceneGraphRenderLoopFrame);
emit window->afterAnimating();
RLDEBUG(" - syncing");
d->syncSceneGraph();
QSG_RENDER_TIMING_SAMPLE(QQuickProfiler::SceneGraphRenderLoopFrame, time_synced);
RLDEBUG(" - rendering");
d->renderSceneGraph(window->size());
QSG_RENDER_TIMING_SAMPLE(QQuickProfiler::SceneGraphRenderLoopFrame, time_rendered);
RLDEBUG(" - swapping");
if (!d->customRenderStage || !d->customRenderStage->swap())
m_gl->swapBuffers(window);
QSG_RENDER_TIMING_SAMPLE(QQuickProfiler::SceneGraphRenderLoopFrame, time_swapped);
RLDEBUG(" - frameDone");
d->fireFrameSwapped();
qCDebug(QSG_LOG_TIME_RENDERLOOP()).nospace()
<< "Frame rendered with 'windows' renderloop in: " << (time_swapped - time_start) / 1000000 << "ms"
<< ", polish=" << (time_polished - time_start) / 1000000
<< ", sync=" << (time_synced - time_polished) / 1000000
<< ", render=" << (time_rendered - time_synced) / 1000000
<< ", swap=" << (time_swapped - time_rendered) / 1000000
<< " - " << window;
Q_QUICK_SG_PROFILE_REPORT(QQuickProfiler::SceneGraphRenderLoopFrame);
}
void QQuickTrivialWindowManager::renderWindow(QQuickWindow *window)
{
bool renderWithoutShowing = QQuickWindowPrivate::get(window)->renderWithoutShowing;
if ((!window->isExposed() && !renderWithoutShowing) || !m_windows.contains(window))
return;
WindowData &data = const_cast<WindowData &>(m_windows[window]);
QQuickWindow *masterWindow = 0;
if (!window->isVisible() && !renderWithoutShowing) {
// Find a "proper surface" to bind...
for (QHash<QQuickWindow *, WindowData>::const_iterator it = m_windows.constBegin();
it != m_windows.constEnd() && !masterWindow; ++it) {
if (it.key()->isVisible())
masterWindow = it.key();
}
} else {
masterWindow = window;
}
if (!masterWindow)
return;
if (!QQuickWindowPrivate::get(masterWindow)->isRenderable()) {
qWarning().nospace()
<< "Unable to find a renderable master window "
<< masterWindow << "when trying to render"
<< window << " (" << window->geometry() << ").";
return;
}
if (!gl) {
gl = new QOpenGLContext();
gl->setFormat(masterWindow->requestedFormat());
gl->create();
if (!gl->makeCurrent(masterWindow))
qWarning("QQuickWindow: makeCurrent() failed...");
sg->initialize(gl);
} else {
gl->makeCurrent(masterWindow);
}
bool alsoSwap = data.updatePending;
data.updatePending = false;
QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
cd->polishItems();
int renderTime = 0, syncTime = 0;
QTime renderTimer;
if (qquick_render_timing())
renderTimer.start();
cd->syncSceneGraph();
if (qquick_render_timing())
syncTime = renderTimer.elapsed();
cd->renderSceneGraph(window->size());
if (qquick_render_timing())
renderTime = renderTimer.elapsed() - syncTime;
if (data.grabOnly) {
grabContent = qt_gl_read_framebuffer(window->size(), false, false);
data.grabOnly = false;
}
if (alsoSwap && window->isVisible()) {
gl->swapBuffers(window);
cd->fireFrameSwapped();
}
if (qquick_render_timing()) {
static QTime lastFrameTime = QTime::currentTime();
const int swapTime = renderTimer.elapsed() - renderTime - syncTime;
qDebug() << "- Breakdown of frame time; sync:" << syncTime
<< "ms render:" << renderTime << "ms swap:" << swapTime
<< "ms total:" << swapTime + renderTime + syncTime
<< "ms time since last frame:" << (lastFrameTime.msecsTo(QTime::currentTime()))
<< "ms";
lastFrameTime = QTime::currentTime();
}
// Might have been set during syncSceneGraph()
if (data.updatePending)
maybeUpdate(window);
}
void QSGSoftwareRenderLoop::renderWindow(QQuickWindow *window, bool isNewExpose)
{
QQuickWindowPrivate *cd = QQuickWindowPrivate::get(window);
if (!m_windows.contains(window))
return;
WindowData &data = const_cast<WindowData &>(m_windows[window]);
//If were not in grabOnly mode, dont render a non-renderable window
if (!data.grabOnly && !cd->isRenderable())
return;
//Resize the backing store if necessary
if (m_backingStores[window]->size() != window->size()) {
m_backingStores[window]->resize(window->size());
}
// ### create QPainter and set up pointer to current window/painter
QSGSoftwareRenderContext *ctx = static_cast<QSGSoftwareRenderContext*>(cd->context);
ctx->initializeIfNeeded();
bool alsoSwap = data.updatePending;
data.updatePending = false;
if (!data.grabOnly) {
cd->flushFrameSynchronousEvents();
// Event delivery/processing triggered the window to be deleted or stop rendering.
if (!m_windows.contains(window))
return;
}
QElapsedTimer renderTimer;
qint64 renderTime = 0, syncTime = 0, polishTime = 0;
bool profileFrames = QSG_RASTER_LOG_TIME_RENDERLOOP().isDebugEnabled();
if (profileFrames)
renderTimer.start();
Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphPolishFrame);
cd->polishItems();
if (profileFrames)
polishTime = renderTimer.nsecsElapsed();
Q_QUICK_SG_PROFILE_SWITCH(QQuickProfiler::SceneGraphPolishFrame,
QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphPolishPolish);
emit window->afterAnimating();
cd->syncSceneGraph();
rc->endSync();
if (profileFrames)
syncTime = renderTimer.nsecsElapsed();
Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopSync);
//Tell the renderer about the windows backing store
auto softwareRenderer = static_cast<QSGSoftwareRenderer*>(cd->renderer);
if (softwareRenderer)
softwareRenderer->setBackingStore(m_backingStores[window]);
cd->renderSceneGraph(window->size());
if (profileFrames)
renderTime = renderTimer.nsecsElapsed();
Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopRender);
if (data.grabOnly) {
grabContent = m_backingStores[window]->handle()->toImage();
data.grabOnly = false;
}
if (alsoSwap && window->isVisible()) {
//Flush backingstore to window
if (!isNewExpose)
m_backingStores[window]->flush(softwareRenderer->flushRegion());
else
m_backingStores[window]->flush(QRegion(QRect(QPoint(0,0), window->size())));
cd->fireFrameSwapped();
}
qint64 swapTime = 0;
if (profileFrames)
swapTime = renderTimer.nsecsElapsed();
Q_QUICK_SG_PROFILE_END(QQuickProfiler::SceneGraphRenderLoopFrame,
QQuickProfiler::SceneGraphRenderLoopSwap);
if (QSG_RASTER_LOG_TIME_RENDERLOOP().isDebugEnabled()) {
static QTime lastFrameTime = QTime::currentTime();
qCDebug(QSG_RASTER_LOG_TIME_RENDERLOOP,
"Frame rendered with 'software' renderloop in %dms, polish=%d, sync=%d, render=%d, swap=%d, frameDelta=%d",
int(swapTime / 1000000),
int(polishTime / 1000000),
int((syncTime - polishTime) / 1000000),
int((renderTime - syncTime) / 1000000),
int((swapTime - renderTime) / 10000000),
int(lastFrameTime.msecsTo(QTime::currentTime())));
lastFrameTime = QTime::currentTime();
}
// Might have been set during syncSceneGraph()
if (data.updatePending)
maybeUpdate(window);
}