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| author | Samuel Rødal <sroedal@trolltech.com> | 2009-06-03 12:16:39 (GMT) |
|---|---|---|
| committer | Samuel Rødal <sroedal@trolltech.com> | 2009-06-03 12:22:30 (GMT) |
| commit | 91f5c7314afdfd43c867266fc1bc418e0f70bac7 (patch) | |
| tree | ecf73dfef25df6d4eda6d389623707b93a4b0a6e /src/gui/painting/qpaintengine_raster.cpp | |
| parent | d16b52d5346a3b652ad7507b24373c51fc0d530c (diff) | |
| download | Qt-91f5c7314afdfd43c867266fc1bc418e0f70bac7.zip Qt-91f5c7314afdfd43c867266fc1bc418e0f70bac7.tar.gz Qt-91f5c7314afdfd43c867266fc1bc418e0f70bac7.tar.bz2 | |
Fixed raster bug causing fully clipped images to be partially blended.
The blend functions assume the width / height of the images being
blended to be greater than 0. A width of 0 caused the first iteration of
a duff's device memcpy (QT_MEMCPY_USHORT) to be executed, thus blending
8 pixels instead of none.
BT: yes
Task-number: 255014
Reviewed-by: Trond
Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
| -rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index 58ffb02..1a1c204 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -1053,7 +1053,7 @@ void QRasterPaintEnginePrivate::drawImage(const QPointF &pt, int d = x + iw - cx2; iw -= d; } - if (iw < 0) + if (iw <= 0) return; // adapt the y paremeters... @@ -1070,7 +1070,7 @@ void QRasterPaintEnginePrivate::drawImage(const QPointF &pt, int d = y + ih - cy2; ih -= d; } - if (ih < 0) + if (ih <= 0) return; // call the blend function... |