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| author | Paul Olav Tvete <paul.tvete@nokia.com> | 2009-03-30 08:43:51 (GMT) |
|---|---|---|
| committer | Paul Olav Tvete <paul.tvete@nokia.com> | 2009-08-21 08:36:19 (GMT) |
| commit | 499702455e21df61fc7a91d3b3c2b1ffaa0d4246 (patch) | |
| tree | db29024c267c1bc51959eaa86af008b0d560eece | |
| parent | 1c3ba5fd9e16ef084a2e17380c4d635c87b2db26 (diff) | |
| download | Qt-499702455e21df61fc7a91d3b3c2b1ffaa0d4246.zip Qt-499702455e21df61fc7a91d3b3c2b1ffaa0d4246.tar.gz Qt-499702455e21df61fc7a91d3b3c2b1ffaa0d4246.tar.bz2 | |
Convert the screen cursor image to native premultiplied format
The default cursor on QWS is loaded as an 8bit QImage.
Blitting that one is really slow so we better convert
the image into a fast format before using it.
Based on a patch by Lars.
Reviewed-by: Tom
| -rw-r--r-- | src/gui/embedded/qscreen_qws.cpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/gui/embedded/qscreen_qws.cpp b/src/gui/embedded/qscreen_qws.cpp index 25550b0..7f3af17 100644 --- a/src/gui/embedded/qscreen_qws.cpp +++ b/src/gui/embedded/qscreen_qws.cpp @@ -181,7 +181,27 @@ void QScreenCursor::set(const QImage &image, int hotx, int hoty) const QRect r = boundingRect(); hotspot = QPoint(hotx, hoty); - cursor = image; + // These are in almost all cases the fastest formats to blend + QImage::Format f; + switch (qt_screen->depth()) { + case 12: + f = QImage::Format_ARGB4444_Premultiplied; + break; + case 15: + f = QImage::Format_ARGB8555_Premultiplied; + break; + case 16: + f = QImage::Format_ARGB8565_Premultiplied; + break; + case 18: + f = QImage::Format_ARGB6666_Premultiplied; + break; + default: + f = QImage::Format_ARGB32_Premultiplied; + } + + cursor = image.convertToFormat(f); + size = image.size(); if (enable && !hwaccel) |