diff options
Diffstat (limited to 'src/widgets/kernel/qwidgetbackingstore.cpp')
-rw-r--r-- | src/widgets/kernel/qwidgetbackingstore.cpp | 51 |
1 files changed, 29 insertions, 22 deletions
diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp index 38b23ec439..03f62582ff 100644 --- a/src/widgets/kernel/qwidgetbackingstore.cpp +++ b/src/widgets/kernel/qwidgetbackingstore.cpp @@ -1065,6 +1065,31 @@ static inline bool discardSyncRequest(QWidget *tlw, QTLWExtra *tlwExtra) return false; } +bool QWidgetBackingStore::syncAllowed() +{ +#ifndef QT_NO_OPENGL + QTLWExtra *tlwExtra = tlw->d_func()->maybeTopData(); + if (textureListWatcher && !textureListWatcher->isLocked()) { + textureListWatcher->deleteLater(); + textureListWatcher = 0; + } else if (!tlwExtra->widgetTextures.isEmpty()) { + bool skipSync = false; + foreach (QPlatformTextureList *tl, tlwExtra->widgetTextures) { + if (tl->isLocked()) { + if (!textureListWatcher) + textureListWatcher = new QPlatformTextureListWatcher(this); + if (!textureListWatcher->isLocked()) + textureListWatcher->watch(tl); + skipSync = true; + } + } + if (skipSync) // cannot compose due to widget textures being in use + return false; + } +#endif + return true; +} + /*! Synchronizes the \a exposedRegion of the \a exposedWidget with the backing store. @@ -1095,7 +1120,8 @@ void QWidgetBackingStore::sync(QWidget *exposedWidget, const QRegion &exposedReg else markDirtyOnScreen(exposedRegion, exposedWidget, QPoint()); - doSync(); + if (syncAllowed()) + doSync(); } /*! @@ -1121,27 +1147,8 @@ void QWidgetBackingStore::sync() return; } -#ifndef QT_NO_OPENGL - if (textureListWatcher && !textureListWatcher->isLocked()) { - textureListWatcher->deleteLater(); - textureListWatcher = 0; - } else if (!tlwExtra->widgetTextures.isEmpty()) { - bool skipSync = false; - foreach (QPlatformTextureList *tl, tlwExtra->widgetTextures) { - if (tl->isLocked()) { - if (!textureListWatcher) - textureListWatcher = new QPlatformTextureListWatcher(this); - if (!textureListWatcher->isLocked()) - textureListWatcher->watch(tl); - skipSync = true; - } - } - if (skipSync) // cannot compose due to widget textures being in use - return; - } -#endif - - doSync(); + if (syncAllowed()) + doSync(); } void QWidgetBackingStore::doSync() |