gfx/webrender_bindings/RenderTextureHost.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 MOZILLA_GFX_RENDERTEXTUREHOST_H
   8 #define MOZILLA_GFX_RENDERTEXTUREHOST_H
   9
  10 #include "GLConsts.h"
  11 #include "GLTypes.h"
  12 #include "nsISupportsImpl.h"
  13 #include "mozilla/gfx/2D.h"
  14 #include "mozilla/layers/LayersSurfaces.h"
  15 #include "mozilla/RefPtr.h"
  16 #include "mozilla/webrender/webrender_ffi.h"  // for wr::ImageRendering
  17 #include "mozilla/webrender/WebRenderTypes.h"
  18
  19 namespace mozilla {
  20
  21 namespace gl {
  22 class GLContext;
  23 }
  24
  25 namespace wr {
  26
  27 class RenderCompositor;
  28 class RenderDXGITextureHost;
  29 class RenderDXGIYCbCrTextureHost;
  30 class RenderMacIOSurfaceTextureHost;
  31 class RenderBufferTextureHost;
  32 class RenderTextureHostSWGL;
  33
  34 void ActivateBindAndTexParameteri(gl::GLContext* aGL, GLenum aActiveTexture,
  35                                   GLenum aBindTarget, GLuint aBindTexture,
  36                                   wr::ImageRendering aRendering);
  37
  38 class RenderTextureHost {
  39   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RenderTextureHost)
  40
  41  public:
  42   RenderTextureHost();
  43
  44   virtual wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL,
  45                                    wr::ImageRendering aRendering);
  46
  47   virtual void Unlock() {}
  48
  49   virtual wr::WrExternalImage LockSWGL(uint8_t aChannelIndex, void* aContext,
  50                                        RenderCompositor* aCompositor,
  51                                        wr::ImageRendering aRendering);
  52
  53   virtual void UnlockSWGL() {}
  54
  55   virtual void ClearCachedResources() {}
  56
  57   // Called asynchronouly when corresponding TextureHost's mCompositableCount
  58   // becomes from 0 to 1. For now, it is used only for
  59   // SurfaceTextureHost/RenderAndroidSurfaceTextureHost.
  60   virtual void PrepareForUse() {}
  61   // Called asynchronouly when corresponding TextureHost's is actually going to
  62   // be used by WebRender. For now, it is used only for
  63   // SurfaceTextureHost/RenderAndroidSurfaceTextureHost.
  64   virtual void NotifyForUse() {}
  65   // Called asynchronouly when corresponding TextureHost's mCompositableCount
  66   // becomes 0. For now, it is used only for
  67   // SurfaceTextureHost/RenderAndroidSurfaceTextureHost.
  68   virtual void NotifyNotUsed() {}
  69   // Returns true when RenderTextureHost needs SyncObjectHost::Synchronize()
  70   // call, before its usage.
  71   virtual bool SyncObjectNeeded() { return false; }
  72
  73   virtual size_t Bytes() = 0;
  74
  75   virtual RenderDXGITextureHost* AsRenderDXGITextureHost() { return nullptr; }
  76   virtual RenderDXGIYCbCrTextureHost* AsRenderDXGIYCbCrTextureHost() {
  77     return nullptr;
  78   }
  79
  80   virtual RenderMacIOSurfaceTextureHost* AsRenderMacIOSurfaceTextureHost() {
  81     return nullptr;
  82   }
  83
  84   virtual RenderTextureHostSWGL* AsRenderTextureHostSWGL() { return nullptr; }
  85
  86  protected:
  87   virtual ~RenderTextureHost();
  88
  89   bool IsFilterUpdateNecessary(wr::ImageRendering aRendering);
  90
  91   wr::ImageRendering mCachedRendering;
  92 };
  93
  94 }  // namespace wr
  95 }  // namespace mozilla
  96
  97 #endif  // MOZILLA_GFX_RENDERTEXTUREHOST_H