void QSGDistanceFieldGlyphCache::update()
{
m_populatingGlyphs.clear();
if (m_pendingGlyphs.isEmpty())
return;
bool profileFrames = QSG_LOG_TIME_GLYPH().isDebugEnabled();
if (profileFrames)
qsg_render_timer.start();
Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphAdaptationLayerFrame);
QList<QDistanceField> distanceFields;
for (int i = 0; i < m_pendingGlyphs.size(); ++i) {
GlyphData &gd = glyphData(m_pendingGlyphs.at(i));
distanceFields.append(QDistanceField(gd.path,
m_pendingGlyphs.at(i),
m_doubleGlyphResolution));
gd.path = QPainterPath(); // no longer needed, so release memory used by the painter path
}
qint64 renderTime = 0;
int count = m_pendingGlyphs.size();
if (profileFrames)
renderTime = qsg_render_timer.nsecsElapsed();
Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphAdaptationLayerFrame);
m_pendingGlyphs.reset();
storeGlyphs(distanceFields);
#if defined(QSG_DISTANCEFIELD_CACHE_DEBUG)
foreach (Texture texture, m_textures)
saveTexture(texture.textureId, texture.size.width(), texture.size.height());
#endif
if (QSG_LOG_TIME_GLYPH().isDebugEnabled()) {
quint64 now = qsg_render_timer.elapsed();
qCDebug(QSG_LOG_TIME_GLYPH,
"distancefield: %d glyphs prepared in %dms, rendering=%d, upload=%d",
count,
(int) now,
int(renderTime / 1000000),
int((now - (renderTime / 1000000))));
}
Q_QUICK_SG_PROFILE_END_WITH_PAYLOAD(QQuickProfiler::SceneGraphAdaptationLayerFrame,
(qint64)count);
}
/*
* Go through all windows we control and render them in turn.
* Then tick animations if active.
*/
void QSGWindowsRenderLoop::render()
{
RLDEBUG("render");
bool rendered = false;
foreach (const WindowData &wd, m_windows) {
if (wd.pendingUpdate) {
const_cast<WindowData &>(wd).pendingUpdate = false;
renderWindow(wd.window);
rendered = true;
}
}
if (!rendered) {
RLDEBUG("no changes, sleep");
QThread::msleep(m_vsyncDelta);
}
if (m_animationDriver->isRunning()) {
RLDEBUG("advancing animations");
QSG_LOG_TIME_SAMPLE(time_start);
Q_QUICK_SG_PROFILE_START(QQuickProfiler::SceneGraphWindowsAnimations);
m_animationDriver->advance();
RLDEBUG("animations advanced");
qCDebug(QSG_LOG_TIME_RENDERLOOP,
"animations ticked in %dms",
int((qsg_render_timer.nsecsElapsed() - time_start)/1000000));
Q_QUICK_SG_PROFILE_END(QQuickProfiler::SceneGraphWindowsAnimations);
// It is not given that animations triggered another maybeUpdate()
// and thus another render pass, so to keep things running,
// make sure there is another frame pending.
maybePostUpdateTimer();
emit timeToIncubate();
}
}
/*
* 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 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);
}
