gecko-dev/gfx/layers/composite/ImageLayerComposite.h

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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_ImageLayerComposite_H
#define GFX_ImageLayerComposite_H
#include "GLTextureImage.h" // for TextureImage
#include "ImageLayers.h" // for ImageLayer
#include "mozilla/Attributes.h" // for override
#include "mozilla/gfx/Rect.h"
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/LayerManagerComposite.h" // for LayerComposite, etc
#include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
#include "nsISupportsImpl.h" // for TextureImage::AddRef, etc
#include "nscore.h" // for nsACString
#include "CompositableHost.h" // for CompositableHost
namespace mozilla {
namespace layers {
class ImageHost;
class Layer;
class ImageLayerComposite : public ImageLayer,
public LayerComposite
{
typedef gl::TextureImage TextureImage;
public:
explicit ImageLayerComposite(LayerManagerComposite* aManager);
protected:
virtual ~ImageLayerComposite();
public:
virtual LayerRenderState GetRenderState() override;
virtual void Disconnect() override;
virtual bool SetCompositableHost(CompositableHost* aHost) override;
virtual Layer* GetLayer() override;
virtual void SetLayerManager(LayerManagerComposite* aManager) override
{
LayerComposite::SetLayerManager(aManager);
mManager = aManager;
if (mImageHost) {
mImageHost->SetCompositor(mCompositor);
}
}
virtual void RenderLayer(const gfx::IntRect& aClipRect) override;
virtual void ComputeEffectiveTransforms(const mozilla::gfx::Matrix4x4& aTransformToSurface) override;
virtual void CleanupResources() override;
CompositableHost* GetCompositableHost() override;
virtual void GenEffectChain(EffectChain& aEffect) override;
virtual LayerComposite* AsLayerComposite() override { return this; }
virtual const char* Name() const override { return "ImageLayerComposite"; }
protected:
virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
private:
gfx::Filter GetEffectFilter();
private:
RefPtr<CompositableHost> mImageHost;
};
} // namespace layers
} // namespace mozilla
#endif /* GFX_ImageLayerComposite_H */