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| author | Samuel Rødal <samuel.rodal@nokia.com> | 2010-10-26 13:46:11 (GMT) |
|---|---|---|
| committer | Samuel Rødal <samuel.rodal@nokia.com> | 2010-10-27 10:14:05 (GMT) |
| commit | a87dbf0d08d58b829ca2fa036d589ad4fd48949f (patch) | |
| tree | 2bfb93c21d1ffa1a0c083d1a7b104e88a4de6956 /src/gui/painting/qpaintengine_raster.cpp | |
| parent | e5ef6f580e1b601898a2fea095ed5be9823bab25 (diff) | |
| download | Qt-a87dbf0d08d58b829ca2fa036d589ad4fd48949f.zip Qt-a87dbf0d08d58b829ca2fa036d589ad4fd48949f.tar.gz Qt-a87dbf0d08d58b829ca2fa036d589ad4fd48949f.tar.bz2 | |
Fixed race condition in raster paint engine.
We need to protect the gradient cache accesses with a mutex.
Task-number: QTBUG-14614
Reviewed-by: Bradley T. Hughes
Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
| -rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index 975ebb0..c03f82b 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -4811,6 +4811,7 @@ public: for (int i = 0; i < stops.size() && i <= 2; i++) hash_val += stops[i].second.rgba(); + QMutexLocker lock(&mutex); QGradientColorTableHash::const_iterator it = cache.constFind(hash_val); if (it == cache.constEnd()) @@ -4844,6 +4845,7 @@ protected: } QGradientColorTableHash cache; + QMutex mutex; }; void QGradientCache::generateGradientColorTable(const QGradient& gradient, uint *colorTable, int size, int opacity) const |