GLUT_IDLE_CALLBACK 1319 php_opengl/glut/php_glut.c 	call_user_callback(call_backs,GLUT_IDLE_CALLBACK,0,NULL);
GLUT_IDLE_CALLBACK 1328 php_opengl/glut/php_glut.c 	HASH_CALLBACK(callback, 1, GLUT_IDLE_CALLBACK);