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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_PaintedLayerComposite_H
#define GFX_PaintedLayerComposite_H
#include "Layers.h" // for Layer (ptr only), etc
#include "mozilla/gfx/Rect.h"
#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 "nsRegion.h" // for nsIntRegion
#include "nscore.h" // for nsACString
namespace mozilla {
namespace layers {
/**
* PaintedLayers use ContentHosts for their compsositable host.
* By using different ContentHosts, PaintedLayerComposite support tiled and
* non-tiled PaintedLayers and single or double buffering.
*/
class CompositableHost;
class ContentHost;
class PaintedLayerComposite : public PaintedLayer,
public LayerComposite
{
public:
explicit PaintedLayerComposite(LayerManagerComposite *aManager);
protected:
virtual ~PaintedLayerComposite();
public:
virtual void Disconnect() override;
virtual LayerRenderState GetRenderState() override;
CompositableHost* GetCompositableHost() override;
virtual void Destroy() override;
virtual Layer* GetLayer() override;
virtual void SetLayerManager(LayerManagerComposite* aManager) override;
virtual void RenderLayer(const gfx::IntRect& aClipRect) override;
virtual void CleanupResources() override;
virtual void GenEffectChain(EffectChain& aEffect) override;
virtual bool SetCompositableHost(CompositableHost* aHost) override;
virtual LayerComposite* AsLayerComposite() override { return this; }
virtual void InvalidateRegion(const nsIntRegion& aRegion) override
{
NS_RUNTIMEABORT("PaintedLayerComposites can't fill invalidated regions");
}
void SetValidRegion(const nsIntRegion& aRegion)
{
MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) ValidRegion", this));
mValidRegion = aRegion;
Mutated();
}
const virtual gfx::TiledIntRegion& GetInvalidRegion() override;
MOZ_LAYER_DECL_NAME("PaintedLayerComposite", TYPE_PAINTED)
protected:
virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
private:
gfx::SamplingFilter GetSamplingFilter() { return gfx::SamplingFilter::LINEAR; }
private:
RefPtr<ContentHost> mBuffer;
};
} // namespace layers
} // namespace mozilla
#endif /* GFX_PaintedLayerComposite_H */
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