ShareableCanvasRenderer.h (1648B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef GFX_SHAREABLECANVASRENDERER_H 8 #define GFX_SHAREABLECANVASRENDERER_H 9 10 #include "CompositorTypes.h" 11 #include "CanvasRenderer.h" 12 #include "mozilla/layers/CanvasClient.h" 13 14 namespace mozilla { 15 namespace gl { 16 class SurfaceFactory; 17 } // namespace gl 18 19 namespace gfx { 20 class DrawTarget; 21 } // namespace gfx 22 23 namespace layers { 24 25 class ShareableCanvasRenderer : public CanvasRenderer { 26 friend class CanvasClient2D; 27 friend class CanvasClientSharedSurface; 28 29 protected: 30 RefPtr<CanvasClient> mCanvasClient; 31 32 private: 33 layers::SurfaceDescriptor mFrontBufferDesc; 34 RefPtr<TextureClient> mFrontBufferFromDesc; 35 36 public: 37 ShareableCanvasRenderer(); 38 virtual ~ShareableCanvasRenderer(); 39 40 public: 41 void Initialize(const CanvasRendererData&) override; 42 43 virtual CompositableForwarder* GetForwarder() = 0; 44 45 virtual bool CreateCompositable() = 0; 46 virtual void EnsurePipeline() = 0; 47 virtual bool HasPipeline() { return false; }; 48 49 void ClearCachedResources() override; 50 void DisconnectClient() override; 51 52 void UpdateCompositableClient(); 53 54 CanvasClient* GetCanvasClient() { return mCanvasClient; } 55 56 private: 57 RefPtr<TextureClient> GetFrontBufferFromDesc(const layers::SurfaceDescriptor&, 58 TextureFlags); 59 }; 60 61 } // namespace layers 62 } // namespace mozilla 63 64 #endif