beginCallback     607 lib/devices/opengl.c     gluTessCallback(i->tesselator, GLU_TESS_BEGIN, (callbackfunction_t)beginCallback);
beginCallback     614 lib/devices/opengl.c     gluTessCallback(i->tesselator_line, GLU_TESS_BEGIN, (callbackfunction_t)beginCallback);
beginCallback     621 lib/devices/opengl.c     gluTessCallback(i->tesselator_tex, GLU_TESS_BEGIN, (callbackfunction_t)beginCallback);