640 	u16 x_err = 0;  in filter_point()  local
650 	x_err = x > x_old[id] ? (x - x_old[id]) : (x_old[id] - x);  in filter_point()
653 …if ((x_err > FILTER_MAX && y_err > FILTER_MAX / 3) || (x_err > FILTER_MAX / 3 && y_err > FILTER_MA…  in filter_point()
654 		filter_step_x = x_err;  in filter_point()
657 		if (x_err > FILTER_MAX)  in filter_point()
658 			filter_step_x = x_err;  in filter_point()
663 	if (x_err <= 2 * FILTER_MAX && y_err <= 2 * FILTER_MAX) {  in filter_point()
666 	} else if (x_err <= 3 * FILTER_MAX && y_err <= 3 * FILTER_MAX) {  in filter_point()
669 	} else if (x_err <= 4 * FILTER_MAX && y_err <= 4 * FILTER_MAX) {  in filter_point()
683 	u16 x_err = 0;  in record_point()  local
697 		x_err = x - x_old[id];  in record_point()
699 		x_err = x_old[id] - x;  in record_point()
706 	if ((x_err > 3 && y_err > 1) || (x_err > 1 && y_err > 3)) {  in record_point()
712 		if (x_err > 3) {  in record_point()