File revert-delay-deletion-of-qsgtextures.patch of Package libqt5-qtdeclarative

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File revert-delay-deletion-of-qsgtextures.patch of Package libqt5-qtdeclarative (Revision 8cdb802db6462f75a961befd3ece246e)

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From eeb320bbd8763f3e72f79369cc3908e999a0da3c Mon Sep 17 00:00:00 2001
From: Dominik Holland <dominik.holland@pelagicore.com>
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 <robert.griebl@pelagicore.com>
Reviewed-by: Gunnar Sletta <gunnar@crimson.no>
---
 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; i<m_windows.size(); ++i) {
-        if ( m_windows[i].pendingUpdate) {
-            lastDirtyWindow = false;
-            break;
-        }
-    }
-
     d->flushFrameSynchronousEvents();
     // 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);

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File revert-delay-deletion-of-qsgtextures.patch of Package libqt5-qtdeclarative (Revision 8cdb802db6462f75a961befd3ece246e)

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