278 	s16 start_x, end_x, start_y, end_y, found_x = -1;  in scan_r2l_t2b()  local
282 	start_x = field->p0.x;  in scan_r2l_t2b()
293 	if (w > LEN(start_x, end_x) || h > LEN(end_y, start_y))  in scan_r2l_t2b()
297 	start_x = ALIGN_DOWN(start_x - w + 1, align); /* - 1 to be inclusive */  in scan_r2l_t2b()
301 	if (start_x < end_x)  in scan_r2l_t2b()
306 		for (x = start_x; x >= end_x; x -= align) {  in scan_r2l_t2b()
325 		if (found_x == start_x)  in scan_r2l_t2b()
352 	s16 start_x, end_x, start_y, end_y, found_x = -1;  in scan_l2r_t2b()  local
356 	start_x = field->p0.x;  in scan_l2r_t2b()
367 	if (w > LEN(end_x, start_x) || h > LEN(end_y, start_y))  in scan_l2r_t2b()
370 	start_x = ALIGN(start_x, align);  in scan_l2r_t2b()
373 	if (w > LEN(end_x, start_x))  in scan_l2r_t2b()
382 		for (x = start_x; x <= end_x; x += align) {  in scan_l2r_t2b()
401 		if (found_x == start_x)  in scan_l2r_t2b()