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      1 /*
      2  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef WEBRTC_MODULES_VIDEO_RENDER_IOS_VIDEO_RENDER_IOS_GLES20_H_
     12 #define WEBRTC_MODULES_VIDEO_RENDER_IOS_VIDEO_RENDER_IOS_GLES20_H_
     13 
     14 #include <list>
     15 #include <map>
     16 
     17 #include "webrtc/modules/video_render/ios/video_render_ios_channel.h"
     18 #include "webrtc/modules/video_render/ios/video_render_ios_view.h"
     19 #include "webrtc/system_wrappers/interface/scoped_ptr.h"
     20 
     21 namespace webrtc {
     22 
     23 class CriticalSectionWrapper;
     24 class EventWrapper;
     25 class ThreadWrapper;
     26 
     27 class VideoRenderIosGles20 {
     28  public:
     29   VideoRenderIosGles20(VideoRenderIosView* view,
     30                        bool full_screen,
     31                        int render_id);
     32   virtual ~VideoRenderIosGles20();
     33 
     34   int Init();
     35   VideoRenderIosChannel* CreateEaglChannel(int channel,
     36                                            int z_order,
     37                                            float left,
     38                                            float top,
     39                                            float right,
     40                                            float bottom);
     41   int DeleteEaglChannel(int channel);
     42   bool HasChannel(int channel);
     43   bool ScreenUpdateProcess();
     44   int GetWindowRect(Rect& rect);  // NOLINT
     45 
     46   int GetScreenResolution(uint& screen_width, uint& screen_height);  // NOLINT
     47   int SetStreamCropping(const uint stream_id,
     48                         const float left,
     49                         const float top,
     50                         const float right,
     51                         const float bottom);
     52 
     53   int ChangeWindow(void* new_window);
     54   int ChangeUniqueID(int unique_id);
     55   int StartRender();
     56   int StopRender();
     57 
     58  protected:
     59   static bool ScreenUpdateThreadProc(void* obj);
     60 
     61  private:
     62   bool RenderOffScreenBuffers();
     63   int SwapAndDisplayBuffers();
     64 
     65  private:
     66   scoped_ptr<CriticalSectionWrapper> gles_crit_sec_;
     67   EventWrapper* screen_update_event_;
     68   ThreadWrapper* screen_update_thread_;
     69 
     70   VideoRenderIosView* view_;
     71   Rect window_rect_;
     72   int window_width_;
     73   int window_height_;
     74   bool is_full_screen_;
     75   GLint backing_width_;
     76   GLint backing_height_;
     77   GLuint view_renderbuffer_;
     78   GLuint view_framebuffer_;
     79   GLuint depth_renderbuffer_;
     80   std::map<int, VideoRenderIosChannel*> agl_channels_;
     81   std::multimap<int, int> z_order_to_channel_;
     82   EAGLContext* gles_context_;
     83   bool is_rendering_;
     84   int id_;
     85 };
     86 }  // namespace webrtc
     87 
     88 #endif  // WEBRTC_MODULES_VIDEO_RENDER_IOS_VIDEO_RENDER_IOS_GLES20_H_
     89