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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <plio.h>
# PL_PLP -- Put a line segment input as a pixel array to a mask, applying the
# given ROP to combine the line segment with the existing line of the mask.
procedure pl_plpi (pl, v, px_src, px_depth, npix, rop)
pointer pl #I mask descriptor
long v[PL_MAXDIM] #I vector coords of line segment
int px_src[ARB] #I input pixel array
int px_depth #I pixel depth, bits
int npix #I number of pixels to be set
int rop #I rasterop
int ll_len
pointer sp, ll_src, ll_out, ll_dst
pointer pl_access()
int pl_p2li()
errchk pl_access
begin
call smark (sp)
call salloc (ll_src, LL_MAXLEN(pl), TY_SHORT)
# Convert the pixel array to a line list.
ll_len = pl_p2li (px_src, 1, Mems[ll_src], npix)
if (!R_NEED_DST(rop) && v[1] == 1 && npix == PL_AXLEN(pl,1))
call pl_update (pl, v, Mems[ll_src])
else {
call salloc (ll_out, LL_MAXLEN(pl), TY_SHORT)
ll_dst = pl_access (pl,v)
call pl_linerop (Mems[ll_src], 1, PL_MAXVAL(pl), Mems[ll_dst], v[1],
MV(px_depth), Mems[ll_out], npix, rop)
call pl_update (pl, v, Mems[ll_out])
}
call sfree (sp)
end
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