gfx/layers/ShareableCanvasRenderer.h

   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 "CopyableCanvasRenderer.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 CopyableCanvasRenderer {
  26   typedef CanvasClient::CanvasClientType CanvasClientType;
  27
  28  public:
  29   ShareableCanvasRenderer();
  30   virtual ~ShareableCanvasRenderer();
  31
  32  public:
  33   void Initialize(const CanvasInitializeData& aData) override;
  34
  35   virtual CompositableForwarder* GetForwarder() = 0;
  36
  37   virtual bool CreateCompositable() = 0;
  38
  39   void ClearCachedResources() override;
  40   void Destroy() override;
  41
  42   void UpdateCompositableClient(
  43       wr::RenderRoot aRenderRoot = wr::RenderRoot::Default);
  44
  45   const TextureFlags& Flags() const { return mFlags; }
  46
  47   CanvasClient* GetCanvasClient() { return mCanvasClient; }
  48
  49  protected:
  50   bool UpdateTarget(gfx::DrawTarget* aDestTarget);
  51
  52   CanvasClientType GetCanvasClientType();
  53
  54   RefPtr<CanvasClient> mCanvasClient;
  55
  56   UniquePtr<gl::SurfaceFactory> mFactory;
  57
  58   TextureFlags mFlags;
  59
  60   friend class CanvasClient2D;
  61   friend class CanvasClientSharedSurface;
  62 };
  63
  64 }  // namespace layers
  65 }  // namespace mozilla
  66
  67 #endif