1 /* 2 * Copyright (c) 2012 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 #include "webrtc/engine_configurations.h" 12 #if defined(COCOA_RENDERING) 13 14 #ifndef WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_ 15 #define WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_ 16 17 #import <Cocoa/Cocoa.h> 18 #import <OpenGL/OpenGL.h> 19 #import <OpenGL/glext.h> 20 #import <OpenGL/glu.h> 21 #include <QuickTime/QuickTime.h> 22 #include <list> 23 #include <map> 24 25 #include "webrtc/modules/video_render/include/video_render_defines.h" 26 27 #import "webrtc/modules/video_render/mac/cocoa_full_screen_window.h" 28 #import "webrtc/modules/video_render/mac/cocoa_render_view.h" 29 30 class Trace; 31 32 namespace webrtc { 33 class EventWrapper; 34 class ThreadWrapper; 35 class VideoRenderNSOpenGL; 36 class CriticalSectionWrapper; 37 38 class VideoChannelNSOpenGL : public VideoRenderCallback 39 { 40 41 public: 42 43 VideoChannelNSOpenGL(NSOpenGLContext *nsglContext, int iId, VideoRenderNSOpenGL* owner); 44 virtual ~VideoChannelNSOpenGL(); 45 46 // A new frame is delivered 47 virtual int DeliverFrame(const I420VideoFrame& videoFrame); 48 49 // Called when the incomming frame size and/or number of streams in mix changes 50 virtual int FrameSizeChange(int width, int height, int numberOfStreams); 51 52 virtual int UpdateSize(int width, int height); 53 54 // Setup 55 int SetStreamSettings(int streamId, float startWidth, float startHeight, float stopWidth, float stopHeight); 56 int SetStreamCropSettings(int streamId, float startWidth, float startHeight, float stopWidth, float stopHeight); 57 58 // Called when it's time to render the last frame for the channel 59 int RenderOffScreenBuffer(); 60 61 // Returns true if a new buffer has been delivered to the texture 62 int IsUpdated(bool& isUpdated); 63 virtual int UpdateStretchSize(int stretchHeight, int stretchWidth); 64 65 // ********** new module functions ************ // 66 virtual int32_t RenderFrame(const uint32_t streamId, 67 I420VideoFrame& videoFrame); 68 69 // ********** new module helper functions ***** // 70 int ChangeContext(NSOpenGLContext *nsglContext); 71 int32_t GetChannelProperties(float& left, 72 float& top, 73 float& right, 74 float& bottom); 75 76 private: 77 78 NSOpenGLContext* _nsglContext; 79 int _id; 80 VideoRenderNSOpenGL* _owner; 81 int32_t _width; 82 int32_t _height; 83 float _startWidth; 84 float _startHeight; 85 float _stopWidth; 86 float _stopHeight; 87 int _stretchedWidth; 88 int _stretchedHeight; 89 int _oldStretchedHeight; 90 int _oldStretchedWidth; 91 unsigned char* _buffer; 92 int _bufferSize; 93 int _incommingBufferSize; 94 bool _bufferIsUpdated; 95 int _numberOfStreams; 96 GLenum _pixelFormat; 97 GLenum _pixelDataType; 98 unsigned int _texture; 99 }; 100 101 class VideoRenderNSOpenGL 102 { 103 104 public: // methods 105 VideoRenderNSOpenGL(CocoaRenderView *windowRef, bool fullScreen, int iId); 106 ~VideoRenderNSOpenGL(); 107 108 static int GetOpenGLVersion(int& nsglMajor, int& nsglMinor); 109 110 // Allocates textures 111 int Init(); 112 VideoChannelNSOpenGL* CreateNSGLChannel(int streamID, int zOrder, float startWidth, float startHeight, float stopWidth, float stopHeight); 113 VideoChannelNSOpenGL* ConfigureNSGLChannel(int channel, int zOrder, float startWidth, float startHeight, float stopWidth, float stopHeight); 114 int DeleteNSGLChannel(int channel); 115 int DeleteAllNSGLChannels(); 116 int StopThread(); 117 bool IsFullScreen(); 118 bool HasChannels(); 119 bool HasChannel(int channel); 120 int GetChannels(std::list<int>& channelList); 121 void LockAGLCntx(); 122 void UnlockAGLCntx(); 123 124 // ********** new module functions ************ // 125 int ChangeWindow(CocoaRenderView* newWindowRef); 126 int32_t ChangeUniqueID(int32_t id); 127 int32_t StartRender(); 128 int32_t StopRender(); 129 int32_t DeleteNSGLChannel(const uint32_t streamID); 130 int32_t GetChannelProperties(const uint16_t streamId, 131 uint32_t& zOrder, 132 float& left, 133 float& top, 134 float& right, 135 float& bottom); 136 137 int32_t SetText(const uint8_t textId, 138 const uint8_t* text, 139 const int32_t textLength, 140 const uint32_t textColorRef, 141 const uint32_t backgroundColorRef, 142 const float left, 143 const float top, 144 const float right, 145 const float bottom); 146 147 // ********** new module helper functions ***** // 148 int configureNSOpenGLEngine(); 149 int configureNSOpenGLView(); 150 int setRenderTargetWindow(); 151 int setRenderTargetFullScreen(); 152 153 protected: // methods 154 static bool ScreenUpdateThreadProc(void* obj); 155 bool ScreenUpdateProcess(); 156 int GetWindowRect(Rect& rect); 157 158 private: // methods 159 160 int CreateMixingContext(); 161 int RenderOffScreenBuffers(); 162 int DisplayBuffers(); 163 164 private: // variables 165 166 167 CocoaRenderView* _windowRef; 168 bool _fullScreen; 169 int _id; 170 CriticalSectionWrapper& _nsglContextCritSec; 171 ThreadWrapper* _screenUpdateThread; 172 EventWrapper* _screenUpdateEvent; 173 NSOpenGLContext* _nsglContext; 174 NSOpenGLContext* _nsglFullScreenContext; 175 CocoaFullScreenWindow* _fullScreenWindow; 176 Rect _windowRect; // The size of the window 177 int _windowWidth; 178 int _windowHeight; 179 std::map<int, VideoChannelNSOpenGL*> _nsglChannels; 180 std::multimap<int, int> _zOrderToChannel; 181 unsigned int _threadID; 182 bool _renderingIsPaused; 183 NSView* _windowRefSuperView; 184 NSRect _windowRefSuperViewFrame; 185 }; 186 187 } // namespace webrtc 188 189 #endif // WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_ 190 #endif // COCOA_RENDERING 191
