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      1 /*
      2  * libjingle
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 // Definition of class CarbonVideoRenderer that implements the abstract class
     29 // cricket::VideoRenderer via Carbon.
     30 
     31 #ifndef TALK_MEDIA_DEVICES_CARBONVIDEORENDERER_H_
     32 #define TALK_MEDIA_DEVICES_CARBONVIDEORENDERER_H_
     33 
     34 #include <Carbon/Carbon.h>
     35 
     36 #include "talk/media/base/videorenderer.h"
     37 #include "webrtc/base/criticalsection.h"
     38 #include "webrtc/base/scoped_ptr.h"
     39 
     40 namespace cricket {
     41 
     42 class CarbonVideoRenderer : public VideoRenderer {
     43  public:
     44   CarbonVideoRenderer(int x, int y);
     45   virtual ~CarbonVideoRenderer();
     46 
     47   // Implementation of pure virtual methods of VideoRenderer.
     48   // These two methods may be executed in different threads.
     49   // SetSize is called before RenderFrame.
     50   virtual bool SetSize(int width, int height, int reserved);
     51   virtual bool RenderFrame(const VideoFrame* frame);
     52 
     53   // Needs to be called on the main thread.
     54   bool Initialize();
     55 
     56  private:
     57   bool DrawFrame();
     58 
     59   static OSStatus DrawEventHandler(EventHandlerCallRef handler,
     60                                    EventRef event,
     61                                    void* data);
     62   rtc::scoped_ptr<uint8_t[]> image_;
     63   rtc::CriticalSection image_crit_;
     64   int image_width_;
     65   int image_height_;
     66   int x_;
     67   int y_;
     68   WindowRef window_ref_;
     69 };
     70 
     71 }  // namespace cricket
     72 
     73 #endif  // TALK_MEDIA_DEVICES_CARBONVIDEORENDERER_H_
     74