voutbuf += tpg_hdiv(tpg, p, dev->loop_vid_out.left) +
(dev->loop_vid_out.top / vdiv) * stride_out;
vcapbuf += tpg_hdiv(tpg, p, dev->compose_cap.left) +
voutbuf += tpg_hdiv(tpg, p, dev->loop_vid_out.left) +
(dev->loop_vid_out.top / vdiv) * stride_out;
vcapbuf += tpg_hdiv(tpg, p, dev->compose_cap.left) +