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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/engine_configurations.h"
#if defined(COCOA_RENDERING)
#ifndef WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_
#define WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_
#import <Cocoa/Cocoa.h>
#import <OpenGL/OpenGL.h>
#import <OpenGL/glext.h>
#import <OpenGL/glu.h>
#include <QuickTime/QuickTime.h>
#include <list>
#include <map>
#include "webrtc/base/thread_annotations.h"
#include "webrtc/modules/video_render/include/video_render_defines.h"
#import "webrtc/modules/video_render/mac/cocoa_full_screen_window.h"
#import "webrtc/modules/video_render/mac/cocoa_render_view.h"
class Trace;
namespace webrtc {
class EventWrapper;
class ThreadWrapper;
class VideoRenderNSOpenGL;
class CriticalSectionWrapper;
class VideoChannelNSOpenGL : public VideoRenderCallback
{
public:
VideoChannelNSOpenGL(NSOpenGLContext *nsglContext, int iId, VideoRenderNSOpenGL* owner);
virtual ~VideoChannelNSOpenGL();
// A new frame is delivered
virtual int DeliverFrame(const I420VideoFrame& videoFrame);
// Called when the incoming frame size and/or number of streams in mix
// changes.
virtual int FrameSizeChange(int width, int height, int numberOfStreams);
virtual int UpdateSize(int width, int height);
// Setup
int SetStreamSettings(int streamId, float startWidth, float startHeight, float stopWidth, float stopHeight);
int SetStreamCropSettings(int streamId, float startWidth, float startHeight, float stopWidth, float stopHeight);
// Called when it's time to render the last frame for the channel
int RenderOffScreenBuffer();
// Returns true if a new buffer has been delivered to the texture
int IsUpdated(bool& isUpdated);
virtual int UpdateStretchSize(int stretchHeight, int stretchWidth);
// ********** new module functions ************ //
virtual int32_t RenderFrame(const uint32_t streamId,
I420VideoFrame& videoFrame);
// ********** new module helper functions ***** //
int ChangeContext(NSOpenGLContext *nsglContext);
int32_t GetChannelProperties(float& left,
float& top,
float& right,
float& bottom);
private:
NSOpenGLContext* _nsglContext;
int _id;
VideoRenderNSOpenGL* _owner;
int32_t _width;
int32_t _height;
float _startWidth;
float _startHeight;
float _stopWidth;
float _stopHeight;
int _stretchedWidth;
int _stretchedHeight;
int _oldStretchedHeight;
int _oldStretchedWidth;
unsigned char* _buffer;
size_t _bufferSize;
size_t _incomingBufferSize;
bool _bufferIsUpdated;
int _numberOfStreams;
GLenum _pixelFormat;
GLenum _pixelDataType;
unsigned int _texture;
};
class VideoRenderNSOpenGL
{
public: // methods
VideoRenderNSOpenGL(CocoaRenderView *windowRef, bool fullScreen, int iId);
~VideoRenderNSOpenGL();
static int GetOpenGLVersion(int& nsglMajor, int& nsglMinor);
// Allocates textures
int Init();
VideoChannelNSOpenGL* CreateNSGLChannel(int streamID, int zOrder, float startWidth, float startHeight, float stopWidth, float stopHeight);
VideoChannelNSOpenGL* ConfigureNSGLChannel(int channel, int zOrder, float startWidth, float startHeight, float stopWidth, float stopHeight);
int DeleteNSGLChannel(int channel);
int DeleteAllNSGLChannels();
int StopThread();
bool IsFullScreen();
bool HasChannels();
bool HasChannel(int channel);
int GetChannels(std::list<int>& channelList);
void LockAGLCntx() EXCLUSIVE_LOCK_FUNCTION(_nsglContextCritSec);
void UnlockAGLCntx() UNLOCK_FUNCTION(_nsglContextCritSec);
// ********** new module functions ************ //
int ChangeWindow(CocoaRenderView* newWindowRef);
int32_t ChangeUniqueID(int32_t id);
int32_t StartRender();
int32_t StopRender();
int32_t DeleteNSGLChannel(const uint32_t streamID);
int32_t GetChannelProperties(const uint16_t streamId,
uint32_t& zOrder,
float& left,
float& top,
float& right,
float& bottom);
int32_t SetText(const uint8_t textId,
const uint8_t* text,
const int32_t textLength,
const uint32_t textColorRef,
const uint32_t backgroundColorRef,
const float left,
const float top,
const float right,
const float bottom);
// ********** new module helper functions ***** //
int configureNSOpenGLEngine();
int configureNSOpenGLView();
int setRenderTargetWindow();
int setRenderTargetFullScreen();
protected: // methods
static bool ScreenUpdateThreadProc(void* obj);
bool ScreenUpdateProcess();
int GetWindowRect(Rect& rect);
private: // methods
int CreateMixingContext();
int RenderOffScreenBuffers();
int DisplayBuffers();
private: // variables
CocoaRenderView* _windowRef;
bool _fullScreen;
int _id;
CriticalSectionWrapper& _nsglContextCritSec;
ThreadWrapper* _screenUpdateThread;
EventWrapper* _screenUpdateEvent;
NSOpenGLContext* _nsglContext;
NSOpenGLContext* _nsglFullScreenContext;
CocoaFullScreenWindow* _fullScreenWindow;
Rect _windowRect; // The size of the window
int _windowWidth;
int _windowHeight;
std::map<int, VideoChannelNSOpenGL*> _nsglChannels;
std::multimap<int, int> _zOrderToChannel;
unsigned int _threadID;
bool _renderingIsPaused;
NSView* _windowRefSuperView;
NSRect _windowRefSuperViewFrame;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_MAC_VIDEO_RENDER_NSOPENGL_H_
#endif // COCOA_RENDERING
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