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Bug 756813: Prevent creation of ImageLayer if ImageContainer is null r=gal
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@ -1129,8 +1129,14 @@ nsDisplayBackground::TryOptimizeToImageLayer(nsDisplayListBuilder* aBuilder)
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*bg,
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*bg,
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layer);
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layer);
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nsImageRenderer* imageRenderer = &state.mImageRenderer;
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// We only care about images here, not gradients.
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// We only care about images here, not gradients.
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if (!state.mImageRenderer.IsRasterImage())
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if (imageRenderer->IsRasterImage())
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return false;
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nsRefPtr<ImageContainer> imageContainer = imageRenderer->GetContainer();
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// Image is not ready to be made into a layer yet
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if (!imageContainer)
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return false;
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return false;
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// We currently can't handle tiled or partial backgrounds.
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// We currently can't handle tiled or partial backgrounds.
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@ -1145,7 +1151,7 @@ nsDisplayBackground::TryOptimizeToImageLayer(nsDisplayListBuilder* aBuilder)
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PRInt32 appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
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PRInt32 appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
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mDestRect = nsLayoutUtils::RectToGfxRect(state.mDestArea, appUnitsPerDevPixel);
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mDestRect = nsLayoutUtils::RectToGfxRect(state.mDestArea, appUnitsPerDevPixel);
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mImageContainer = state.mImageRenderer.GetContainer();
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mImageContainer = imageContainer;
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// Ok, we can turn this into a layer if needed.
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// Ok, we can turn this into a layer if needed.
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return true;
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return true;
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