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Bug 622886 - Further wallpaper over crashes in gfxContext::gfxContext(gfxASurface *). r=bas,jrmuizel a=blocking-beta9+, CLOSED TREE

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This commit is contained in:
Robert O'Callahan 2011-01-10 17:07:49 -05:00
parent 2a11249a6e
commit d18586045a
1 changed files with 10 additions and 8 deletions
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18
gfx/layers/d3d9/ThebesLayerD3D9.cpp
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@ -423,14 +423,16 @@ ThebesLayerD3D9::DrawRegion(const nsIntRegion &aRegion, SurfaceMode aMode)
case SURFACE_COMPONENT_ALPHA: {
nsRefPtr<gfxWindowsSurface> onBlack = opaqueRenderer.Begin(this);
nsRefPtr<gfxWindowsSurface> onWhite = opaqueRendererOnWhite.Begin(this);
FillSurface(onBlack, aRegion, bounds.TopLeft(), gfxRGBA(0.0, 0.0, 0.0, 1.0));
FillSurface(onWhite, aRegion, bounds.TopLeft(), gfxRGBA(1.0, 1.0, 1.0, 1.0));
gfxASurface* surfaces[2] = { onBlack.get(), onWhite.get() };
destinationSurface = new gfxTeeSurface(surfaces, NS_ARRAY_LENGTH(surfaces));
// Using this surface as a source will likely go horribly wrong, since
// only the onBlack surface will really be used, so alpha information will
// be incorrect.
destinationSurface->SetAllowUseAsSource(PR_FALSE);
if (onBlack && onWhite) {
FillSurface(onBlack, aRegion, bounds.TopLeft(), gfxRGBA(0.0, 0.0, 0.0, 1.0));
FillSurface(onWhite, aRegion, bounds.TopLeft(), gfxRGBA(1.0, 1.0, 1.0, 1.0));
gfxASurface* surfaces[2] = { onBlack.get(), onWhite.get() };
destinationSurface = new gfxTeeSurface(surfaces, NS_ARRAY_LENGTH(surfaces));
// Using this surface as a source will likely go horribly wrong, since
// only the onBlack surface will really be used, so alpha information will
// be incorrect.
destinationSurface->SetAllowUseAsSource(PR_FALSE);
}
break;
}
}