Implement IPCs and VideoCapture::Client interfaces for texture capture

content/browser/renderer_host/media/video_capture_host.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.
 //
 // VideoCaptureHost serves video capture related messages from
 // VideoCaptureMessageFilter which lives inside the render process.
 //
 // This class is owned by RenderProcessHostImpl, and instantiated on UI
 // thread, but all other operations and method calls happen on IO thread.
 //
@@ skipping 68 matching lines @@
   // VideoCaptureControllerEventHandler implementation.
   virtual void OnError(const VideoCaptureControllerID& id) OVERRIDE;
   virtual void OnBufferCreated(const VideoCaptureControllerID& id,
                                base::SharedMemoryHandle handle,
                                int length,
                                int buffer_id) OVERRIDE;
   virtual void OnBufferDestroyed(const VideoCaptureControllerID& id,
                                  int buffer_id) OVERRIDE;
   virtual void OnBufferReady(const VideoCaptureControllerID& id,
                              int buffer_id,
-                             base::TimeTicks timestamp,
-                             const media::VideoCaptureFormat& format) OVERRIDE;
+                             const media::VideoCaptureFormat& format,
+                             base::TimeTicks timestamp) OVERRIDE;
+  virtual void OnMailboxBufferReady(const VideoCaptureControllerID& id,
+                                    int buffer_id,
+                                    const gpu::MailboxHolder& mailbox_holder,
+                                    const media::VideoCaptureFormat& format,
+                                    base::TimeTicks timestamp) OVERRIDE;
   virtual void OnEnded(const VideoCaptureControllerID& id) OVERRIDE;
 
  private:
   friend class BrowserThread;
   friend class base::DeleteHelper<VideoCaptureHost>;
   friend class MockVideoCaptureHost;
   friend class VideoCaptureHostTest;
 
   virtual ~VideoCaptureHost();
 
@@ skipping 12 matching lines @@
       const base::WeakPtr<VideoCaptureController>& controller);
 
   // IPC message: Stop capture on device referenced by |device_id|.
   void OnStopCapture(int device_id);
 
   // IPC message: Pause capture on device referenced by |device_id|.
   void OnPauseCapture(int device_id);
 
   // IPC message: Receive an empty buffer from renderer. Send it to device
   // referenced by |device_id|.
-  void OnReceiveEmptyBuffer(int device_id, int buffer_id);
+  void OnReceiveEmptyBuffer(int device_id, int buffer_id, uint32 sync_point);
 
   // IPC message: Get supported formats referenced by |capture_session_id|.
   // |device_id| is needed for message back-routing purposes.
   void OnGetDeviceSupportedFormats(
       int device_id,
       media::VideoCaptureSessionId capture_session_id);
 
   // IPC message: Get a device's currently in use format(s), referenced by
   // |capture_session_id|. |device_id| is needed for message back-routing
   // purposes.
   void OnGetDeviceFormatsInUse(
       int device_id,
       media::VideoCaptureSessionId capture_session_id);
 
   // Send a newly created buffer to the VideoCaptureMessageFilter.
   void DoSendNewBufferOnIOThread(
       const VideoCaptureControllerID& controller_id,
       base::SharedMemoryHandle handle,
       int length,
       int buffer_id);
 
   void DoSendFreeBufferOnIOThread(
       const VideoCaptureControllerID& controller_id,
       int buffer_id);
 
   // Send a filled buffer to the VideoCaptureMessageFilter.
   void DoSendFilledBufferOnIOThread(
       const VideoCaptureControllerID& controller_id,
       int buffer_id,
-      base::TimeTicks timestamp,
-      const media::VideoCaptureFormat& format);
+      const media::VideoCaptureFormat& format,
+      base::TimeTicks timestamp);
+
+  // Send a filled texture mailbox buffer to the VideoCaptureMessageFilter.
+  void DoSendFilledMailboxBufferOnIOThread(
+      const VideoCaptureControllerID& controller_id,
+      int buffer_id,
+      const gpu::MailboxHolder& mailbox_holder,
+      const media::VideoCaptureFormat& format,
+      base::TimeTicks timestamp);
 
   // Handle error coming from VideoCaptureDevice.
   void DoHandleErrorOnIOThread(const VideoCaptureControllerID& controller_id);
 
   void DoEndedOnIOThread(const VideoCaptureControllerID& controller_id);
 
   void DeleteVideoCaptureControllerOnIOThread(
       const VideoCaptureControllerID& controller_id);
 
   MediaStreamManager* media_stream_manager_;
 
   typedef std::map<VideoCaptureControllerID,
                    base::WeakPtr<VideoCaptureController> > EntryMap;
 
   // A map of VideoCaptureControllerID to the VideoCaptureController to which it
   // is connected. An entry in this map holds a null controller while it is in
   // the process of starting.
   EntryMap entries_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_HOST_H_