michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFX_ThebesLayerComposite_H
michael@0: #define GFX_ThebesLayerComposite_H
michael@0: 
michael@0: #include "Layers.h"                     // for Layer (ptr only), etc
michael@0: #include "gfxRect.h"                    // for gfxRect
michael@0: #include "mozilla/Attributes.h"         // for MOZ_OVERRIDE
michael@0: #include "mozilla/RefPtr.h"             // for RefPtr
michael@0: #include "mozilla/layers/LayerManagerComposite.h"  // for LayerComposite, etc
michael@0: #include "mozilla/layers/LayersTypes.h"  // for LayerRenderState, etc
michael@0: #include "nsDebug.h"                    // for NS_RUNTIMEABORT
michael@0: #include "nsRegion.h"                   // for nsIntRegion
michael@0: #include "nscore.h"                     // for nsACString
michael@0: 
michael@0: struct nsIntPoint;
michael@0: struct nsIntRect;
michael@0: 
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace layers {
michael@0: 
michael@0: /**
michael@0:  * Thebes layers use ContentHosts for their compsositable host.
michael@0:  * By using different ContentHosts, ThebesLayerComposite support tiled and
michael@0:  * non-tiled Thebes layers and single or double buffering.
michael@0:  */
michael@0: 
michael@0: class CompositableHost;
michael@0: class ContentHost;
michael@0: class TiledLayerComposer;
michael@0: 
michael@0: class ThebesLayerComposite : public ThebesLayer,
michael@0:                              public LayerComposite
michael@0: {
michael@0: public:
michael@0:   ThebesLayerComposite(LayerManagerComposite *aManager);
michael@0:   virtual ~ThebesLayerComposite();
michael@0: 
michael@0:   virtual void Disconnect() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
michael@0: 
michael@0:   CompositableHost* GetCompositableHost() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void Destroy() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual Layer* GetLayer() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual TiledLayerComposer* GetTiledLayerComposer() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void RenderLayer(const nsIntRect& aClipRect) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void CleanupResources() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool SetCompositableHost(CompositableHost* aHost) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual LayerComposite* AsLayerComposite() MOZ_OVERRIDE { return this; }
michael@0: 
michael@0:   void EnsureTiled() { mRequiresTiledProperties = true; }
michael@0: 
michael@0:   virtual void InvalidateRegion(const nsIntRegion& aRegion)
michael@0:   {
michael@0:     NS_RUNTIMEABORT("ThebesLayerComposites can't fill invalidated regions");
michael@0:   }
michael@0: 
michael@0:   void SetValidRegion(const nsIntRegion& aRegion)
michael@0:   {
michael@0:     MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) ValidRegion", this));
michael@0:     mValidRegion = aRegion;
michael@0:     Mutated();
michael@0:   }
michael@0: 
michael@0:   MOZ_LAYER_DECL_NAME("ThebesLayerComposite", TYPE_THEBES)
michael@0: 
michael@0: protected:
michael@0: 
michael@0:   virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   CSSToScreenScale GetEffectiveResolution();
michael@0: 
michael@0:   RefPtr<ContentHost> mBuffer;
michael@0:   bool mRequiresTiledProperties;
michael@0: };
michael@0: 
michael@0: } /* layers */
michael@0: } /* mozilla */
michael@0: #endif /* GFX_ThebesLayerComposite_H */