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       1             : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2             :  * This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef GFX_ImageLayerComposite_H
       7             : #define GFX_ImageLayerComposite_H
       8             : 
       9             : #include "GLTextureImage.h"             // for TextureImage
      10             : #include "ImageLayers.h"                // for ImageLayer
      11             : #include "mozilla/Attributes.h"         // for override
      12             : #include "mozilla/gfx/Rect.h"
      13             : #include "mozilla/RefPtr.h"             // for RefPtr
      14             : #include "mozilla/layers/LayerManagerComposite.h"  // for LayerComposite, etc
      15             : #include "mozilla/layers/LayersTypes.h"  // for LayerRenderState, etc
      16             : #include "nsISupportsImpl.h"            // for TextureImage::AddRef, etc
      17             : #include "nscore.h"                     // for nsACString
      18             : #include "CompositableHost.h"           // for CompositableHost
      19             : 
      20             : namespace mozilla {
      21             : namespace layers {
      22             : 
      23             : class ImageHost;
      24             : class Layer;
      25             : 
      26             : class ImageLayerComposite : public ImageLayer,
      27             :                             public LayerComposite
      28             : {
      29             :   typedef gl::TextureImage TextureImage;
      30             : 
      31             : public:
      32             :   explicit ImageLayerComposite(LayerManagerComposite* aManager);
      33             : 
      34             : protected:
      35             :   virtual ~ImageLayerComposite();
      36             : 
      37             : public:
      38             :   virtual void Disconnect() override;
      39             : 
      40             :   virtual bool SetCompositableHost(CompositableHost* aHost) override;
      41             : 
      42             :   virtual Layer* GetLayer() override;
      43             : 
      44             :   virtual void SetLayerManager(HostLayerManager* aManager) override;
      45             : 
      46             :   virtual void RenderLayer(const gfx::IntRect& aClipRect,
      47             :                            const Maybe<gfx::Polygon>& aGeometry) override;
      48             : 
      49             :   virtual void ComputeEffectiveTransforms(const mozilla::gfx::Matrix4x4& aTransformToSurface) override;
      50             : 
      51             :   virtual void CleanupResources() override;
      52             : 
      53             :   CompositableHost* GetCompositableHost() override;
      54             : 
      55             :   virtual void GenEffectChain(EffectChain& aEffect) override;
      56             : 
      57           0 :   virtual HostLayer* AsHostLayer() override { return this; }
      58             : 
      59           0 :   virtual const char* Name() const override { return "ImageLayerComposite"; }
      60             : 
      61             :   virtual bool IsOpaque() override;
      62             : 
      63             :   virtual nsIntRegion GetFullyRenderedRegion() override;
      64             : 
      65             : protected:
      66             :   virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
      67             : 
      68             : private:
      69             :   gfx::SamplingFilter GetSamplingFilter();
      70             : 
      71             : private:
      72             :   RefPtr<ImageHost> mImageHost;
      73             : };
      74             : 
      75             : } // namespace layers
      76             : } // namespace mozilla
      77             : 
      78             : #endif /* GFX_ImageLayerComposite_H */