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+/* $XFree86: xc/programs/Xserver/iplan2p4/iplhrzvert.c,v 3.0 1996/08/18 01:54:48 dawes Exp $ */
+/***********************************************************
+
+Copyright (c) 1987 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+/* $XConsortium: iplhrzvert.c,v 1.8 94/04/17 20:28:51 dpw Exp $ */
+
+/* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with
+interleaved planes */
+
+#include "X.h"
+
+#include "gc.h"
+#include "window.h"
+#include "pixmap.h"
+#include "region.h"
+
+#include "ipl.h"
+
+#include "iplmskbits.h"
+
+/* horizontal solid line
+ abs(len) > 1
+*/
+iplHorzS(rop, andp, xorp, addrg, ngwidth, x1, y1, len)
+register int rop;
+INTER_DECLARERRAX(andp);
+INTER_DECLARERRAX(xorp);
+INTER_DECLAREG(*addrg); /* pointer to base of bitmap */
+int ngwidth; /* width in groups of bitmap */
+int x1; /* initial point */
+int y1;
+int len; /* length of line */
+{
+ register int ngmiddle;
+ INTER_DECLAREG(startmask);
+ INTER_DECLAREG(endmask);
+
+ addrg = addrg + y1 * ngwidth + (x1 >> INTER_PGSH) * INTER_PLANES;
+ /* all bits inside same group */
+ if ( ((x1 & INTER_PIM) + len) < INTER_PPG)
+ {
+ INTER_maskpartialbits(x1, len, startmask);
+ INTER_DoMaskRRop(addrg, andp, xorp, startmask, addrg);
+ }
+ else
+ {
+ INTER_maskbits(x1, len, startmask, endmask, ngmiddle);
+ if (startmask)
+ {
+ INTER_DoMaskRRop(addrg, andp, xorp, startmask, addrg);
+ addrg += INTER_PLANES;
+ }
+ while (ngmiddle--)
+ {
+ INTER_DoRRop(addrg, andp, xorp, addrg);
+ addrg += INTER_PLANES;
+ }
+ if (endmask)
+ INTER_DoMaskRRop(addrg, andp, xorp, endmask, addrg);
+ }
+}
+
+/* vertical solid line */
+
+iplVertS(rop, andp, xorp, addrg, ngwidth, x1, y1, len)
+int rop;
+INTER_DECLARERRAX(andp);
+INTER_DECLARERRAX(xorp);
+INTER_DECLAREG(*addrg); /* pointer to base of bitmap */
+register int ngwidth; /* width in groups of bitmap */
+int x1, y1; /* initial point */
+register int len; /* length of line */
+{
+ addrg = addrg + (y1 * ngwidth) + (x1 >> INTER_PGSH) * INTER_PLANES;
+ while (len--)
+ {
+ INTER_DoMaskRRop(addrg, andp, xorp, iplmask[x1 & INTER_PIM], addrg);
+ addrg += ngwidth;
+ }
+}