X11 lightgun support

input/drivers/udev_input.c

@@ -823,10 +823,16 @@ static int16_t udev_lightgun_aiming_state(
    if (!mouse)
       return 0;
 
+#ifdef HAVE_X11
+   /* udev->pointer_x and y is only set in X11 */
    if (!(video_driver_translate_coord_viewport_wrap(
                &vp, udev->pointer_x, udev->pointer_y,
                &res_x, &res_y, &res_screen_x, &res_screen_y)))
       return 0;
+#else
+   res_x = udev_mouse_get_pointer_x(mouse, false);
+   res_y = udev_mouse_get_pointer_y(mouse, false);
+#endif
 
    inside =    (res_x >= -edge_detect) 
             && (res_y >= -edge_detect)