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Bug 753835: Clip to mask image rather than relying on EXTEND_NONE. r=roc

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This commit is contained in:
Bas Schouten 2012-05-12 19:01:20 +02:00
parent 16253d7e0f
commit 2b663f11cf
1 changed files with 2 additions and 0 deletions
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2
gfx/thebes/gfxBlur.cpp
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@ -114,6 +114,8 @@ gfxAlphaBoxBlur::Paint(gfxContext* aDestinationCtx, const gfxPoint& offset)
aDestinationCtx->Save();
aDestinationCtx->NewPath();
gfxRect dirty(dirtyrect->x, dirtyrect->y, dirtyrect->width, dirtyrect->height);
gfxRect imageRect(offset - mImageSurface->GetDeviceOffset(), mImageSurface->GetSize());
dirty.IntersectRect(dirty, imageRect);
aDestinationCtx->Rectangle(dirty);
aDestinationCtx->Clip();
aDestinationCtx->Mask(mImageSurface, offset);