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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "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:
bool SetCompositableHost(CompositableHost* aHost) override;
void Disconnect() override { Destroy(); }
void SetLayerManager(HostLayerManager* aManager) override;
Layer* GetLayer() override;
void RenderLayer(const gfx::IntRect& aClipRect,
const Maybe<gfx::Polygon>& aGeometry) override;
void CleanupResources() override;
void GenEffectChain(EffectChain& aEffect) override;
CompositableHost* GetCompositableHost() override;
HostLayer* AsHostLayer() override { return this; }
const char* Name() const override { return "CanvasLayerComposite"; }
protected:
RefPtr<CanvasRenderer> CreateCanvasRendererInternal() override {
MOZ_CRASH("Incompatible surface type");
return nullptr;
}
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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