random_utils/include/random_utils/ThreadSafeCanvas.h

Go to the documentation of this file.

#ifndef _RU_THREADSAFE_CANVAS_H_
#define _RU_THREADSAFE_CANVAS_H_

#include <vrs/glut/glutcanvas.h>

#include "ThreadSafeObject.h"

#include <SDL.h>

namespace random_utils
{

class ThreadSafeCanvas : public VRS::GlutCanvas, public ThreadSafeObject
{
    SDL_mutex*  m_canvasRendering;

    SDL_cond*   m_finishedRenderingCondition;
    SDL_mutex*  m_finishedRenderingMutex;
    SDL_cond*   m_wakeUpCondition;
    SDL_mutex*  m_requestMutex;

    bool m_sleepRequested;

    static ThreadSafeCanvas*    m_instance;
    
    bool m_breakOut;

public:
    ThreadSafeCanvas(const std::string& windowName,
                     unsigned int width, unsigned int height, int properties);

    virtual ~ThreadSafeCanvas();

    void finishRedisplay();

    void sleep();

    void wakeUp();

    static ThreadSafeCanvas* get()
    {
        return m_instance;
    }
    
    void breakOut();
};

}

#endif

---