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Bug 995721 patch 1 - Honor the translation on mShadowTarget in ClientLayerManager::MakeSnapshotIfRequired. r=mattwoodrow
This switches from DrawTarget::CopySurface (which ignores the transform) to DrawSurface (which honors the transform).
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@ -281,8 +281,9 @@ ClientLayerManager::MakeSnapshotIfRequired()
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if (CompositorChild* remoteRenderer = GetRemoteRenderer()) {
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nsIntRect bounds;
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mWidget->GetBounds(bounds);
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IntSize widgetSize = bounds.Size().ToIntSize();
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SurfaceDescriptor inSnapshot, snapshot;
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if (mForwarder->AllocSurfaceDescriptor(bounds.Size().ToIntSize(),
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if (mForwarder->AllocSurfaceDescriptor(widgetSize,
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gfxContentType::COLOR_ALPHA,
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&inSnapshot) &&
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// The compositor will usually reuse |snapshot| and return
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@ -290,9 +291,11 @@ ClientLayerManager::MakeSnapshotIfRequired()
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// responsible for freeing |snapshot|.
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remoteRenderer->SendMakeSnapshot(inSnapshot, &snapshot)) {
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RefPtr<DataSourceSurface> surf = GetSurfaceForDescriptor(snapshot);
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mShadowTarget->GetDrawTarget()->CopySurface(surf,
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IntRect(0, 0, bounds.Size().width, bounds.Size().height),
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IntPoint(0, 0));
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DrawTarget* dt = mShadowTarget->GetDrawTarget();
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Rect widgetRect(Point(0, 0), Size(widgetSize.width, widgetSize.height));
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dt->DrawSurface(surf, widgetRect, widgetRect,
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DrawSurfaceOptions(),
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DrawOptions(1.0f, CompositionOp::OP_OVER));
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}
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if (IsSurfaceDescriptorValid(snapshot)) {
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mForwarder->DestroySharedSurface(&snapshot);
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