pad_process
if (pad_process(mp, rd, cn, ntn, &newi->ti_pad) < 0)
if (pad_process(mp, rd, nn, ntn, &newi->ti_pad) < 0)
if (pad_process(mp, rd, pxn, ctn, rpad) < 0)
if (pad_process(mp, rd, rn, ct, &rd->rd_pad)