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Bug 667290: Properly clear the downsampled destination before blending to it. r=jrmuizel

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This commit is contained in:
Bas Schouten 2011-06-28 02:10:06 +02:00
parent 14726e5fee
commit e768a19cf6
1 changed files with 5 additions and 0 deletions
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5
gfx/2d/DrawTargetD2D.cpp
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@ -446,6 +446,11 @@ DrawTargetD2D::DrawSurfaceWithShadow(SourceSurface *aSurface,
mDevice->CreateRenderTargetView(tmpDSTexture, NULL, byRef(dsRTView));
mDevice->CreateShaderResourceView(tmpDSTexture, NULL, byRef(dsSRView));
// We're not guaranteed the texture we created will be empty, we've
// seen old content at least on NVidia drivers.
float color[4] = { 0, 0, 0, 0 };
mDevice->ClearRenderTargetView(dsRTView, color);
rtViews = dsRTView;
mDevice->OMSetRenderTargets(1, &rtViews, NULL);