buff_size->max_x = MAX(buff_size->max_x, output->offset_x + output->width);
buff_size->max_y = MAX(buff_size->max_y, output->offset_y + output->height);
buff_size->max_x = MAX(buff_size->max_x, output->offset_x + output->width);
buff_size->max_y = MAX(buff_size->max_y, output->offset_y + output->height);