Re: [fltk.opengl] Program becomes very slow after some time running

[yin]

//OBPM.CPP
#include "stdafx.h"
#include "OBPM_UI.h"

int main(int argc, char* argv[])
{
        OBPMViewUI UI;  
        UI.start(argc,argv);
        return Fl::run();
}


//VideoGLWin.h
////////////////////////////////////////////////////////////
// Class Name: VideoGLWin
// Description: Display the video from camera or file by openGL(FLTK)
// Date: 2012-01-09 09:54
////////////////////////////////////////////////////////////

#ifndef VIDEO_GL_WIN_H
#define VIDEO_GL_WIN_H

#include <FL/Fl.H>
#include <FL/Gl.H>
#include <FL/Glu.H>
#include <FL/Fl_Gl_Window.H>
#include <FL/Threads.h>
#include <FL/Fl_Ask.h>

#include<OpenCV/cv.h>


class VideoGlWin :
        public Fl_Gl_Window
{
private:
        bool m_openGLInitialized;
        GLuint textureName;
public:
        double zoom_ratio;  //0.1  10.0
        double xpan_ratio,ypan_ratio; // -1.0-1.0
        double frame_rate;

public:
        IplImage *m_processedImage; 

public:
        VideoGlWin(int x,int y , int w, int h,const char 
*L=0):Fl_Gl_Window(x,y,w,h,L)
        {
                zoom_ratio=1.0;
                xpan_ratio=0.0;
                ypan_ratio=0.0;
                m_processedImage=NULL;
                m_openGLInitialized=false;
                
                if(!initOpenGL())
                {
                        fl_alert("Can not init OpenGL! Exit!");
                        exit(0);
                }
                Fl::add_timeout(1.0/frame_rate, Timer_CB, (void*)this);
        }
        ~VideoGlWin()
        {
                if(m_processedImage)  
                {
                        cvReleaseImage(&m_processedImage);
                        m_processedImage=NULL;
                }
        }
        bool initOpenGL(void);
        void draw(void);

        //void draw_overlay(void);

        void ShowAppMessage(void);
    void VideoGlWin::grid_draw(int r2,int c2);
    bool upload_iplimage (const IplImage *img,GLuint& tex);
// 24 FPS TIMER CALLBACK
    //     Called 24x per second to redraw the widget
    //
    static void Timer_CB(void *userdata)
        {
                VideoGlWin *glW = (VideoGlWin*)userdata;
        glW->redraw();
        Fl::repeat_timeout(1.0/24.0, Timer_CB, userdata);
    }

        void SetFPS(double fps)
        {
                Fl::remove_timeout(Timer_CB,(void*)this);
                Fl::add_timeout(1.0/fps, Timer_CB, (void*)this);
                frame_rate=fps;
        }
};

#endif

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