Send hardware video frames with mailboxes.

webkit/media/android/stream_texture_factory_android.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_
 #define WEBKIT_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/video_frame_provider.h"
+#include "gpu/command_buffer/common/mailbox.h"
 
 namespace webkit_media {
 
 // The proxy class for the gpu thread to notify the compositor thread
 // when a new video frame is available.
 class StreamTextureProxy {
  public:
   // Initialize and bind to the current thread, which becomes the thread that
   // a connected client will receive callbacks on.
   virtual void BindToCurrentThread(int stream_id, int width, int height) = 0;
@@ skipping 25 matching lines @@
 
   // Create the StreamTextureProxy object.
   virtual StreamTextureProxy* CreateProxy() = 0;
 
   // Send an IPC message to the browser process to request a java surface
   // object for the given stream_id. After the the surface is created,
   // it will be passed back to the WebMediaPlayerAndroid object identified by
   // the player_id.
   virtual void EstablishPeer(int stream_id, int player_id) = 0;
 
-  // Create the streamTexture and return the stream Id and set the texture id.
-  virtual unsigned CreateStreamTexture(unsigned* texture_id) = 0;
+  // Create the streamTexture and return the stream Id and create a client-side
+  // texture id to refer to the streamTexture. The texture id is produced into
+  // a mailbox so it can be used to ship in a VideoFrame, with a sync point for
+  // when the mailbox can be accessed.
+  virtual unsigned CreateStreamTexture(
+      unsigned texture_target,
+      unsigned* texture_id,
+      gpu::Mailbox* texture_mailbox,
+      unsigned* texture_mailbox_sync_point) = 0;
 
-  // Destroy the streamTexture for the given texture Id.
-  virtual void DestroyStreamTexture(unsigned texture_id) = 0;
+  // Destroy the streamTexture for the given texture id. Also consumes the
+  // mailbox for the client-side texture id and destroys the client side
+  // texture.
+  virtual void DestroyStreamTexture(
+      unsigned texture_target,
+      unsigned texture_id,
+      const gpu::Mailbox& texture_mailbox,
+      unsigned texture_mailbox_sync_point) = 0;
 };
 
 } // namespace webkit_media
 
 #endif  // WEBKIT_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_H_