Implement IPCs and VideoCapture::Client interfaces for texture capture

content/renderer/media/video_capture_impl.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.
 
 // VideoCaptureImpl represents a capture device in renderer process. It provides
 // interfaces for clients to Start/Stop capture. It also communicates to clients
 // when buffer is ready, state of capture device is changed.
 
 // VideoCaptureImpl is also a delegate of VideoCaptureMessageFilter which relays
 // operation of a capture device to the browser process and receives responses
@@ skipping 22 matching lines @@
 
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
 #include "content/common/media/video_capture.h"
 #include "content/renderer/media/video_capture_message_filter.h"
 #include "media/video/capture/video_capture.h"
 #include "media/video/capture/video_capture_types.h"
 
 namespace base {
 class MessageLoopProxy;
-}
+}  // namespace base
+
+namespace gpu {
+struct MailboxHolder;
+}  // namespace gpu
 
 namespace content {
 
 class CONTENT_EXPORT VideoCaptureImpl
     : public media::VideoCapture, public VideoCaptureMessageFilter::Delegate {
  public:
   VideoCaptureImpl(media::VideoCaptureSessionId session_id,
                    VideoCaptureMessageFilter* filter);
   virtual ~VideoCaptureImpl();
 
@@ skipping 38 matching lines @@
   void GetDeviceSupportedFormatsOnIOThread(
       const DeviceFormatsCallback& callback);
   void GetDeviceFormatsInUseOnIOThread(
       const DeviceFormatsInUseCallback& callback);
 
   // VideoCaptureMessageFilter::Delegate interface.
   virtual void OnBufferCreated(base::SharedMemoryHandle handle,
                                int length,
                                int buffer_id) OVERRIDE;
   virtual void OnBufferDestroyed(int buffer_id) OVERRIDE;
-  virtual void OnBufferReceived(
-      int buffer_id,
-      base::TimeTicks timestamp,
-      const media::VideoCaptureFormat& format) OVERRIDE;
+  virtual void OnBufferReceived(int buffer_id,
+                                const media::VideoCaptureFormat& format,
+                                base::TimeTicks) OVERRIDE;
+  virtual void OnMailboxBufferReceived(int buffer_id,
+                                       const gpu::MailboxHolder& mailbox_holder,
+                                       const media::VideoCaptureFormat& format,
+                                       base::TimeTicks timestamp) OVERRIDE;
   virtual void OnStateChanged(VideoCaptureState state) OVERRIDE;
   virtual void OnDeviceSupportedFormatsEnumerated(
       const media::VideoCaptureFormats& supported_formats) OVERRIDE;
   virtual void OnDeviceFormatsInUseReceived(
       const media::VideoCaptureFormats& formats_in_use) OVERRIDE;
   virtual void OnDelegateAdded(int32 device_id) OVERRIDE;
 
   // Sends an IPC message to browser process when all clients are done with the
   // buffer.
-  void OnClientBufferFinished(
-      int buffer_id,
-      const scoped_refptr<ClientBuffer>& buffer);
+  void OnClientBufferFinished(int buffer_id,
+                              const scoped_refptr<ClientBuffer>& buffer,
+                              scoped_ptr<gpu::MailboxHolder> mailbox_holder);
 
   void StopDevice();
   void RestartCapture();
   void StartCaptureInternal();
 
   virtual void Send(IPC::Message* message);
 
   // Helpers.
   bool RemoveClient(media::VideoCapture::EventHandler* handler,
                     ClientInfo* clients);
@@ skipping 35 matching lines @@
   // media::VideoFrames constructed in OnBufferReceived() from buffers cached
   // in |client_buffers_|.
   base::WeakPtrFactory<VideoCaptureImpl> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_VIDEO_CAPTURE_IMPL_H_