Improving the decoder pipeline.

remoting/client/frame_consumer_proxy.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.
 
 // FrameConsumerProxy is used to allow a FrameConsumer on the UI thread to be
 // invoked by a Decoder on the decoder thread.  The Detach() method is used by
 // the proxy's owner before tearing down the FrameConsumer, to prevent any
 // further invokations reaching it.
 
 #ifndef REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_
 #define REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_
 
 #include "base/memory/ref_counted.h"
 #include "remoting/client/frame_consumer.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
 namespace remoting {
 
 class FrameConsumerProxy
     : public base::RefCountedThreadSafe<FrameConsumerProxy>,
       public FrameConsumer {
  public:
   // Constructs a proxy for |frame_consumer| which will trampoline invocations
   // to |frame_consumer_message_loop|.
-  FrameConsumerProxy(FrameConsumer* frame_consumer,
-                     base::MessageLoopProxy* frame_consumer_message_loop);
+  FrameConsumerProxy(base::MessageLoopProxy* frame_consumer_message_loop);
   virtual ~FrameConsumerProxy();
 
   // FrameConsumer implementation.
-  virtual void AllocateFrame(media::VideoFrame::Format format,
-                             const SkISize& size,
-                             scoped_refptr<media::VideoFrame>* frame_out,
-                             const base::Closure& done) OVERRIDE;
-  virtual void ReleaseFrame(media::VideoFrame* frame) OVERRIDE;
-  virtual void OnPartialFrameOutput(media::VideoFrame* frame,
-                                    SkRegion* region,
-                                    const base::Closure& done) OVERRIDE;
+  virtual void ApplyBuffer(const SkISize& view_size,
+                           const SkIRect& clip_area,
+                           pp::ImageData* buffer,
+                           const SkRegion& region) OVERRIDE;
+  virtual void ReturnBuffer(pp::ImageData* buffer) OVERRIDE;
+  virtual void SetSourceSize(const SkISize& source_size) OVERRIDE;
+
+  // Attaches to |frame_consumer_|.
+  // This must only be called from |frame_consumer_message_loop_|.
+  void Attach(FrameConsumer* frame_consumer);
 
   // Detaches from |frame_consumer_|, ensuring no further calls reach it.
   // This must only be called from |frame_consumer_message_loop_|.
   void Detach();
 
  private:
   FrameConsumer* frame_consumer_;
 
   scoped_refptr<base::MessageLoopProxy> frame_consumer_message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameConsumerProxy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_FRAME_CONSUMER_PROXY_H_