content/renderer/media/android/stream_texture_factory_synchronous_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_SYNCHRONOUS_IMPL_H_
   6 #define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_SYNCHRONOUS_IMPL_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/observer_list.h"
  11 #include "content/renderer/media/android/stream_texture_factory.h"
  12
  13 namespace gfx {
  14 class SurfaceTexture;
  15 }
  16
  17 namespace gpu {
  18 namespace gles2 {
  19 class GLES2Interface;
  20 }  //  namespace gles2
  21 }  //  namespace gpu
  22
  23 namespace content {
  24
  25 // Factory for when using synchronous compositor in Android WebView.
  26 class StreamTextureFactorySynchronousImpl : public StreamTextureFactory {
  27  public:
  28   class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
  29    public:
  30     virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
  31         uint32 stream_id) = 0;
  32
  33     virtual gpu::gles2::GLES2Interface* ContextGL() = 0;
  34
  35     virtual void AddObserver(StreamTextureFactoryContextObserver* obs) = 0;
  36     virtual void RemoveObserver(StreamTextureFactoryContextObserver* obs) = 0;
  37
  38    protected:
  39     friend class base::RefCountedThreadSafe<ContextProvider>;
  40     virtual ~ContextProvider() {}
  41   };
  42
  43   typedef base::Callback<scoped_refptr<ContextProvider>(void)>
  44       CreateContextProviderCallback;
  45
  46   static scoped_refptr<StreamTextureFactorySynchronousImpl> Create(
  47       const CreateContextProviderCallback& try_create_callback,
  48       int frame_id);
  49
  50   StreamTextureProxy* CreateProxy() override;
  51   void EstablishPeer(int32 stream_id, int player_id) override;
  52   unsigned CreateStreamTexture(unsigned texture_target,
  53                                unsigned* texture_id,
  54                                gpu::Mailbox* texture_mailbox) override;
  55   void SetStreamTextureSize(int32 stream_id, const gfx::Size& size) override;
  56   gpu::gles2::GLES2Interface* ContextGL() override;
  57   void AddObserver(StreamTextureFactoryContextObserver* obs) override;
  58   void RemoveObserver(StreamTextureFactoryContextObserver* obs) override;
  59
  60  private:
  61   friend class base::RefCounted<StreamTextureFactorySynchronousImpl>;
  62   StreamTextureFactorySynchronousImpl(
  63       const CreateContextProviderCallback& try_create_callback,
  64       int frame_id);
  65   ~StreamTextureFactorySynchronousImpl() override;
  66
  67   CreateContextProviderCallback create_context_provider_callback_;
  68   scoped_refptr<ContextProvider> context_provider_;
  69   int frame_id_;
  70   StreamTextureFactoryContextObserver* observer_;
  71
  72   DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureFactorySynchronousImpl);
  73 };
  74
  75 }  // namespace content
  76
  77 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_SYNCHRONOUS_IMPL_H_