From eeb320bbd8763f3e72f79369cc3908e999a0da3c Mon Sep 17 00:00:00 2001 From: Dominik Holland Date: Thu, 2 Mar 2017 15:25:07 +0100 Subject: [PATCH] Delay the deletion of QSGTextures until all windows are synchronized With the 'basic' and the 'windows' render loop the scene graph context is shared. Because of this we cannot start deleting textures after the first window is synchronized as it may contain textures needed by the another window, which is not yet synchronized. QWindowPrivate::syncSceneGraph() is not calling endSync() anymore as it doesn't know whether it is the last window or not. Instead the renderloop is now responsible for calling endSync() once this is safe to do. Change-Id: Icb50ebfb447c928e38b41df7e26f3bfafdb4a811 Reviewed-by: Robert Griebl Reviewed-by: Gunnar Sletta --- src/plugins/scenegraph/d3d12/qsgd3d12renderloop.cpp | 1 + src/plugins/scenegraph/d3d12/qsgd3d12threadedrenderloop.cpp | 2 ++ src/plugins/scenegraph/openvg/qsgopenvgrenderloop.cpp | 1 + src/quick/items/qquickrendercontrol.cpp | 3 +++ src/quick/items/qquickwindow.cpp | 2 -- .../adaptations/software/qsgsoftwarerenderloop.cpp | 1 + .../adaptations/software/qsgsoftwarethreadedrenderloop.cpp | 2 ++ src/quick/scenegraph/qsgrenderloop.cpp | 12 ++++++++++++ src/quick/scenegraph/qsgthreadedrenderloop.cpp | 1 + src/quick/scenegraph/qsgwindowsrenderloop.cpp | 10 ++++++++++ 10 files changed, 33 insertions(+), 2 deletions(-) Index: qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/d3d12/qsgd3d12renderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/plugins/scenegraph/d3d12/qsgd3d12renderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/d3d12/qsgd3d12renderloop.cpp @@ -461,7 +461,6 @@ void QSGD3D12RenderLoop::renderWindow(QQ data.rc->initialize(nullptr); wd->syncSceneGraph(); - data.rc->endSync(); if (profileFrames) syncTime = renderTimer.nsecsElapsed(); Index: qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/d3d12/qsgd3d12threadedrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/plugins/scenegraph/d3d12/qsgd3d12threadedrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/d3d12/qsgd3d12threadedrenderloop.cpp @@ -410,7 +410,6 @@ bool QSGD3D12RenderThread::event(QEvent QQuickWindowPrivate *wd = QQuickWindowPrivate::get(wme->window); rc->initialize(nullptr); wd->syncSceneGraph(); - rc->endSync(); wd->renderSceneGraph(wme->window->size()); *wme->image = engine->executeAndWaitReadbackRenderTarget(); } @@ -546,7 +545,6 @@ void QSGD3D12RenderThread::sync(bool inE rc->initialize(nullptr); wd->syncSceneGraph(); - rc->endSync(); if (!hadRenderer && wd->renderer) { if (Q_UNLIKELY(debug_loop())) Index: qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/openvg/qsgopenvgrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/plugins/scenegraph/openvg/qsgopenvgrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/plugins/scenegraph/openvg/qsgopenvgrenderloop.cpp @@ -205,7 +205,6 @@ void QSGOpenVGRenderLoop::renderWindow(Q emit window->afterAnimating(); cd->syncSceneGraph(); - rc->endSync(); if (profileFrames) syncTime = renderTimer.nsecsElapsed(); Index: qtdeclarative-opensource-src-5.9.2/src/quick/items/qquickrendercontrol.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/items/qquickrendercontrol.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/items/qquickrendercontrol.cpp @@ -284,7 +284,6 @@ bool QQuickRenderControl::sync() QQuickWindowPrivate *cd = QQuickWindowPrivate::get(d->window); cd->syncSceneGraph(); - d->rc->endSync(); // TODO: find out if the sync actually caused a scenegraph update. return true; @@ -384,7 +383,6 @@ QImage QQuickRenderControl::grab() QQuickWindowPrivate *cd = QQuickWindowPrivate::get(d->window); cd->polishItems(); cd->syncSceneGraph(); - d->rc->endSync(); render(); grabContent = qt_gl_read_framebuffer(d->window->size() * d->window->effectiveDevicePixelRatio(), false, false); if (QQuickRenderControl::renderWindowFor(d->window)) { @@ -404,7 +402,6 @@ QImage QQuickRenderControl::grab() softwareRenderer->markDirty(); cd->polishItems(); cd->syncSceneGraph(); - d->rc->endSync(); render(); softwareRenderer->setCurrentPaintDevice(prevDev); } Index: qtdeclarative-opensource-src-5.9.2/src/quick/items/qquickwindow.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/items/qquickwindow.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/items/qquickwindow.cpp @@ -432,8 +432,10 @@ void QQuickWindowPrivate::syncSceneGraph emit q->afterSynchronizing(); runAndClearJobs(&afterSynchronizingJobs); + context->endSync(); } + void QQuickWindowPrivate::renderSceneGraph(const QSize &size) { QML_MEMORY_SCOPE_STRING("SceneGraph"); Index: qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderloop.cpp @@ -149,7 +149,6 @@ void QSGSoftwareRenderLoop::renderWindow emit window->afterAnimating(); cd->syncSceneGraph(); - rc->endSync(); if (profileFrames) syncTime = renderTimer.nsecsElapsed(); Index: qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/adaptations/software/qsgsoftwarethreadedrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/scenegraph/adaptations/software/qsgsoftwarethreadedrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/adaptations/software/qsgsoftwarethreadedrenderloop.cpp @@ -330,7 +330,6 @@ bool QSGSoftwareRenderThread::event(QEve softwareRenderer->setBackingStore(backingStore); rc->initialize(nullptr); wd->syncSceneGraph(); - rc->endSync(); wd->renderSceneGraph(wme->window->size()); *wme->image = backingStore->handle()->toImage(); } @@ -444,7 +443,6 @@ void QSGSoftwareRenderThread::sync(bool rc->initialize(nullptr); wd->syncSceneGraph(); - rc->endSync(); if (!hadRenderer && wd->renderer) { qCDebug(QSG_RASTER_LOG_RENDERLOOP, "RT - created renderer"); Index: qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/scenegraph/qsgrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgrenderloop.cpp @@ -381,16 +381,6 @@ void QSGGuiThreadRenderLoop::renderWindo bool alsoSwap = data.updatePending; data.updatePending = false; - bool lastDirtyWindow = true; - auto i = m_windows.constBegin(); - while (i != m_windows.constEnd()) { - if (i.value().updatePending) { - lastDirtyWindow = false; - break; - } - i++; - } - if (!current) return; @@ -418,8 +408,6 @@ void QSGGuiThreadRenderLoop::renderWindo emit window->afterAnimating(); cd->syncSceneGraph(); - if (lastDirtyWindow) - rc->endSync(); if (profileFrames) syncTime = renderTimer.nsecsElapsed(); Index: qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/scenegraph/qsgthreadedrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp @@ -432,7 +432,6 @@ bool QSGRenderThread::event(QEvent *e) qCDebug(QSG_LOG_RENDERLOOP) << QSG_RT_PAD << "- sync scene graph"; QQuickWindowPrivate *d = QQuickWindowPrivate::get(ce->window); d->syncSceneGraph(); - sgrc->endSync(); qCDebug(QSG_LOG_RENDERLOOP) << QSG_RT_PAD << "- rendering scene graph"; QQuickWindowPrivate::get(ce->window)->renderSceneGraph(ce->window->size()); Index: qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgwindowsrenderloop.cpp =================================================================== --- qtdeclarative-opensource-src-5.9.2.orig/src/quick/scenegraph/qsgwindowsrenderloop.cpp +++ qtdeclarative-opensource-src-5.9.2/src/quick/scenegraph/qsgwindowsrenderloop.cpp @@ -446,14 +446,6 @@ void QSGWindowsRenderLoop::renderWindow( } } - bool lastDirtyWindow = true; - for (int i=0; iflushFrameSynchronousEvents(); // Event delivery or processing has caused the window to stop rendering. if (!windowData(window)) @@ -473,8 +465,6 @@ void QSGWindowsRenderLoop::renderWindow( RLDEBUG(" - syncing"); d->syncSceneGraph(); - if (lastDirtyWindow) - m_rc->endSync(); QSG_RENDER_TIMING_SAMPLE(QQuickProfiler::SceneGraphRenderLoopFrame, time_synced, QQuickProfiler::SceneGraphRenderLoopSync);