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author | Tom Cooksey <thomas.cooksey@nokia.com> | 2009-10-12 13:39:52 (GMT) |
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committer | Tom Cooksey <thomas.cooksey@nokia.com> | 2009-10-19 12:56:38 (GMT) |
commit | 22b9079040ae0d4f35781509fa6aea7e38ac47bb (patch) | |
tree | eca3b24f135eb74d63b7dde57124baedbfdeed3e /src/gui/image | |
parent | e2296ba010100d007a081e0faac8066adbeb7137 (diff) | |
download | Qt-22b9079040ae0d4f35781509fa6aea7e38ac47bb.zip Qt-22b9079040ae0d4f35781509fa6aea7e38ac47bb.tar.gz Qt-22b9079040ae0d4f35781509fa6aea7e38ac47bb.tar.bz2 |
Separate modification & destruction pixmap cleanup hooks
Before the QExplicitlySharedDataPointer change, the ref-count was 0 when
calling the cleanup hooks from ~QPixmap. That enabled the hook to figure
out if the pixmap is being modified or deleted. As the ref count is now
1 when calling the cleanup hooks in ~QPixmap, we need to seperate the
hooks.
This change should make using textre-from-pixmap faster as the EGL/glX
surface wont get re-created everytime the pixmap is modified.
Reviewed-By: Gunnar
Diffstat (limited to 'src/gui/image')
-rw-r--r-- | src/gui/image/qimagepixmapcleanuphooks.cpp | 35 | ||||
-rw-r--r-- | src/gui/image/qimagepixmapcleanuphooks_p.h | 17 | ||||
-rw-r--r-- | src/gui/image/qpixmap.cpp | 7 |
3 files changed, 45 insertions, 14 deletions
diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp index d08d3ef..138eb0d 100644 --- a/src/gui/image/qimagepixmapcleanuphooks.cpp +++ b/src/gui/image/qimagepixmapcleanuphooks.cpp @@ -70,19 +70,30 @@ QImagePixmapCleanupHooks *QImagePixmapCleanupHooks::instance() return qt_image_and_pixmap_cleanup_hooks; } -void QImagePixmapCleanupHooks::addPixmapHook(_qt_pixmap_cleanup_hook_pm hook) +void QImagePixmapCleanupHooks::addPixmapModificationHook(_qt_pixmap_cleanup_hook_pm hook) { - pixmapHooks.append(hook); + pixmapModificationHooks.append(hook); } +void QImagePixmapCleanupHooks::addPixmapDestructionHook(_qt_pixmap_cleanup_hook_pm hook) +{ + pixmapDestructionHooks.append(hook); +} + + void QImagePixmapCleanupHooks::addImageHook(_qt_image_cleanup_hook_64 hook) { imageHooks.append(hook); } -void QImagePixmapCleanupHooks::removePixmapHook(_qt_pixmap_cleanup_hook_pm hook) +void QImagePixmapCleanupHooks::removePixmapModificationHook(_qt_pixmap_cleanup_hook_pm hook) +{ + pixmapModificationHooks.removeAll(hook); +} + +void QImagePixmapCleanupHooks::removePixmapDestructionHook(_qt_pixmap_cleanup_hook_pm hook) { - pixmapHooks.removeAll(hook); + pixmapDestructionHooks.removeAll(hook); } void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook) @@ -91,15 +102,25 @@ void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook) } -void QImagePixmapCleanupHooks::executePixmapHooks(QPixmap* pm) +void QImagePixmapCleanupHooks::executePixmapModificationHooks(QPixmap* pm) { - for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->pixmapHooks.count(); ++i) - qt_image_and_pixmap_cleanup_hooks->pixmapHooks[i](pm); + Q_ASSERT(qt_image_and_pixmap_cleanup_hooks); + for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->pixmapModificationHooks.count(); ++i) + qt_image_and_pixmap_cleanup_hooks->pixmapModificationHooks[i](pm); if (qt_pixmap_cleanup_hook_64) qt_pixmap_cleanup_hook_64(pm->cacheKey()); } +void QImagePixmapCleanupHooks::executePixmapDestructionHooks(QPixmap* pm) +{ + Q_ASSERT(qt_image_and_pixmap_cleanup_hooks); + for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->pixmapDestructionHooks.count(); ++i) + qt_image_and_pixmap_cleanup_hooks->pixmapDestructionHooks[i](pm); + + if (qt_pixmap_cleanup_hook_64) + qt_pixmap_cleanup_hook_64(pm->cacheKey()); +} void QImagePixmapCleanupHooks::executeImageHooks(qint64 key) { diff --git a/src/gui/image/qimagepixmapcleanuphooks_p.h b/src/gui/image/qimagepixmapcleanuphooks_p.h index dd2d0f7..16c8974 100644 --- a/src/gui/image/qimagepixmapcleanuphooks_p.h +++ b/src/gui/image/qimagepixmapcleanuphooks_p.h @@ -70,18 +70,27 @@ public: static QImagePixmapCleanupHooks *instance(); - void addPixmapHook(_qt_pixmap_cleanup_hook_pm); + // Gets called when a pixmap is about to be modified: + void addPixmapModificationHook(_qt_pixmap_cleanup_hook_pm); + + // Gets called when a pixmap is about to be destroyed: + void addPixmapDestructionHook(_qt_pixmap_cleanup_hook_pm); + + // Gets called when an image is about to be modified or destroyed: void addImageHook(_qt_image_cleanup_hook_64); - void removePixmapHook(_qt_pixmap_cleanup_hook_pm); + void removePixmapModificationHook(_qt_pixmap_cleanup_hook_pm); + void removePixmapDestructionHook(_qt_pixmap_cleanup_hook_pm); void removeImageHook(_qt_image_cleanup_hook_64); - static void executePixmapHooks(QPixmap*); + static void executePixmapModificationHooks(QPixmap*); + static void executePixmapDestructionHooks(QPixmap*); static void executeImageHooks(qint64 key); private: QList<_qt_image_cleanup_hook_64> imageHooks; - QList<_qt_pixmap_cleanup_hook_pm> pixmapHooks; + QList<_qt_pixmap_cleanup_hook_pm> pixmapModificationHooks; + QList<_qt_pixmap_cleanup_hook_pm> pixmapDestructionHooks; }; QT_END_NAMESPACE diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp index bf6c9ae..f94552d 100644 --- a/src/gui/image/qpixmap.cpp +++ b/src/gui/image/qpixmap.cpp @@ -322,8 +322,9 @@ QPixmap::QPixmap(const char * const xpm[]) QPixmap::~QPixmap() { - if (data->is_cached && data->ref == 1) - QImagePixmapCleanupHooks::executePixmapHooks(this); + Q_ASSERT(data->ref >= 1); // Catch if ref-counting changes again + if (data->is_cached && data->ref == 1) // ref will be decrememnted after destructor returns + QImagePixmapCleanupHooks::executePixmapDestructionHooks(this); } /*! @@ -1917,7 +1918,7 @@ void QPixmap::detach() } if (data->is_cached && data->ref == 1) - QImagePixmapCleanupHooks::executePixmapHooks(this); + QImagePixmapCleanupHooks::executePixmapModificationHooks(this); #if defined(Q_WS_MAC) QMacPixmapData *macData = id == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(data.data()) : 0; |