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authorPaul Olav Tvete <paul.tvete@nokia.com>2010-03-03 16:37:09 (GMT)
committerPaul Olav Tvete <paul.tvete@nokia.com>2010-03-03 16:41:05 (GMT)
commite98d4aece51fa8691cf33325ab96634fcf9baa81 (patch)
tree8acdba5ca4696eb6c84916878fe7293eaae6fc96 /src/gui
parent13e08bb43bc7c972e77fc7b77ae5de14235cb897 (diff)
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Fix compositing when QWS background is completely transparent.
Specifying the wrong composition mode triggered an optimization which caused uninitialized values to be blended in. Task-number: QTBUG-6625, QTBUG-6906 Reviewed-by: Samuel
Diffstat (limited to 'src/gui')
-rw-r--r--src/gui/embedded/qscreen_qws.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/embedded/qscreen_qws.cpp b/src/gui/embedded/qscreen_qws.cpp
index 8eb8123..9bd73a4 100644
--- a/src/gui/embedded/qscreen_qws.cpp
+++ b/src/gui/embedded/qscreen_qws.cpp
@@ -2739,7 +2739,7 @@ void QScreen::compose(int level, const QRegion &exposed, QRegion &blend,
default:
break;
}
- spanData.setup(qwsServer->backgroundBrush(), 256, QPainter::CompositionMode_SourceOver);
+ spanData.setup(qwsServer->backgroundBrush(), 256, QPainter::CompositionMode_Source);
spanData.dx = off.x();
spanData.dy = off.y();
} else if (!surface->isBuffered()) {