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1 files changed, 38 insertions, 0 deletions

diff --git a/sys/plio/plglp.gx b/sys/plio/plglp.gx
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<plio.h>
+
+# PL_GLP -- Get a line segment as a pixel array, applying the given ROP to
+# combine the pixels with those of the output array.
+
+procedure pl_glp$t (pl, v, px_dst, px_depth, npix, rop)
+
+pointer	pl			#I mask descriptor
+long	v[PL_MAXDIM]		#I vector coords of line segment
+PIXEL	px_dst[ARB]		#O output pixel array
+int	px_depth		#I pixel depth, bits
+int	npix			#I number of pixels desired
+int	rop			#I rasterop
+
+int	np
+pointer	sp, px_out, ll_src
+pointer	pl_access()
+int	pl_l2p$t()
+errchk	pl_access
+
+begin
+	ll_src = pl_access (pl,v)
+	if (!R_NEED_DST(rop)) {
+	    np = pl_l2p$t (Mems[ll_src], v[1], px_dst, npix)
+	    return
+	}
+
+	call smark (sp)
+	call salloc (px_out, npix, TY_PIXEL)
+
+	np = pl_l2p$t (Mems[ll_src], v[1], Mem$t[px_out], npix)
+	call pl_pixrop$t (Mem$t[px_out], 1, PL_MAXVAL(pl),
+	    px_dst, 1, MV(px_depth), npix, rop)
+
+	call sfree (sp)
+end