diff options
| author | Laszlo Agocs <laszlo.p.agocs@nokia.com> | 2011-06-15 17:27:55 +0200 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.p.agocs@nokia.com> | 2011-06-16 10:15:03 +0200 |
| commit | 6afe7a233e66f0cae803590d536b4d379b7c1625 (patch) | |
| tree | 9885124e37367b7fb2ec967db3c4c4fbdfdcab07 /src/gui/image/qpixmapdata.cpp | |
| parent | 5e35452ad8420886f54df89d19205acb88ebb363 (diff) | |
Handle QVolatileImage-backed pixmaps optimally in drawPixmap().
When drawing such pixmaps (used by both the openvg and opengl graphics
systems) onto another pixmap or to a QImage, the performance was
sub-optimal due to missing and accidentally disabled support
specific to QVolatileImage. This is now fixed and drawing pixmaps into
a QImage is also made optimal by using the QS60PaintEngine for
QImage too. This will cause a 5-7x (or even up to 12x on certain
hardware and platform) increase in offscreen pixmap drawing
performance.
Task-number: QTBUG-19880
Reviewed-by: Jani Hautakangas
Diffstat (limited to 'src/gui/image/qpixmapdata.cpp')
| -rw-r--r-- | src/gui/image/qpixmapdata.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gui/image/qpixmapdata.cpp b/src/gui/image/qpixmapdata.cpp index c46429cf40..934dbb8764 100644 --- a/src/gui/image/qpixmapdata.cpp +++ b/src/gui/image/qpixmapdata.cpp @@ -276,6 +276,11 @@ QImage* QPixmapData::buffer() } #if defined(Q_OS_SYMBIAN) +QVolatileImage QPixmapData::toVolatileImage() const +{ + return QVolatileImage(); +} + void* QPixmapData::toNativeType(NativeType /* type */) { return 0; |