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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_CanvasLayerComposite_H
#define GFX_CanvasLayerComposite_H
#include "Layers.h" // for CanvasLayer, etc
#include "mozilla/Attributes.h" // for override
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/LayerManagerComposite.h" // for LayerComposite, etc
#include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
#include "nsDebug.h" // for NS_RUNTIMEABORT
#include "nsRect.h" // for mozilla::gfx::IntRect
#include "nscore.h" // for nsACString
namespace mozilla {
namespace layers {
class CompositableHost;
// Canvas layers use ImageHosts (but CanvasClients) because compositing a
// canvas is identical to compositing an image.
class ImageHost;
class CanvasLayerComposite : public CanvasLayer,
public LayerComposite
{
public:
explicit CanvasLayerComposite(LayerManagerComposite* aManager);
protected:
virtual ~CanvasLayerComposite();
public:
// CanvasLayer impl
virtual void Initialize(const Data& aData) override
{
NS_RUNTIMEABORT("Incompatibe surface type");
}
virtual LayerRenderState GetRenderState() override;
virtual bool SetCompositableHost(CompositableHost* aHost) override;
virtual void Disconnect() override
{
Destroy();
}
virtual void SetLayerManager(LayerManagerComposite* aManager) override;
virtual Layer* GetLayer() override;
virtual void RenderLayer(const gfx::IntRect& aClipRect) override;
virtual void CleanupResources() override;
virtual void GenEffectChain(EffectChain& aEffect) override;
CompositableHost* GetCompositableHost() override;
virtual LayerComposite* AsLayerComposite() override { return this; }
void SetBounds(gfx::IntRect aBounds) { mBounds = aBounds; }
virtual const char* Name() const override { return "CanvasLayerComposite"; }
protected:
virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
private:
gfx::SamplingFilter GetSamplingFilter();
private:
RefPtr<CompositableHost> mCompositableHost;
};
} // namespace layers
} // namespace mozilla
#endif /* GFX_CanvasLayerComposite_H */
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