GLUT_TIMER_CALLBACK 1340 php_opengl/glut/php_glut.c call_user_callback(call_backs,GLUT_TIMER_CALLBACK,1,params); GLUT_TIMER_CALLBACK 1348 php_opengl/glut/php_glut.c HASH_CALLBACK(callback, 2, GLUT_TIMER_CALLBACK);