現在是使用openCV從camera抓frame下來，不存成BMP image
目的是為了提升效能
然後存成openGL的texture，再把多張texture連續地產生在openGL的視窗裡
程式碼如下：
//openCV
VideoCature cap(0);
Mat frame;
frame>>cap;
//openGL
//存texture loop
for()
glGenTextures(1, &textures[frame_count-1]);
glBindTexture(GL_TEXTURE_2D,textures[frame_count-1]);
glTexImage2D(GL_TEXTURE_2D, 0, 3,frame.cols, frame.rows, 0,
GL_BGR_EXT,
GL_UNSIGNED_BYTE, frame.data);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);{
}
Display()//call back
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(1.0, 1.0, 1.0, 1.0); //背景white
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glBegin(GL_QUADS);
glTexCoord2f(0,0); glVertex3f(-11,-11,0);
glTexCoord2f(1,0); glVertex3f(11,-11,0);
glTexCoord2f(1,1); glVertex3f(11,11,0);
glBindTexture(GL_TEXTURE_2D, textures[0]);
glutReshapeFunc(WindowSize);
//glutKeyboardFunc(Keyboard);
glutDisplayFunc(Display);
glutMainLoop();
}
目前只先印第一張texture
我在每一次Display()執行時便會printf一次訊息
結果只print兩次
畫面都全白
請前輩指點迷津，謝謝!
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