Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 186 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/iplan2p4/iplbres.c b/nx-X11/programs/Xserver/iplan2p4/iplbres.c
new file mode 100644
index 000000000..4fa9a3256
--- /dev/null
+++ b/nx-X11/programs/Xserver/iplan2p4/iplbres.c
@@ -0,0 +1,186 @@
+/* $XFree86$ */
+/***********************************************************
+
+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: iplbres.c,v 1.15 94/04/17 20:28:45 dpw Exp $ */
+
+/* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with
+interleaved planes */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "misc.h"
+#include "ipl.h"
+#include "servermd.h"
+#include "miline.h"
+
+#include "iplmskbits.h"
+
+/* Solid bresenham line */
+/* NOTES
+   e2 is used less often than e1, so it's not in a register
+*/
+
+void
+iplBresS(rop, andp, xorp, addrg, ngwidth, signdx, signdy, axis, x1, y1, e, e1,
+	 e2, len)
+    int		    rop;
+    INTER_DECLARERRAX(andp);
+    INTER_DECLARERRAX(xorp);
+    INTER_DECLAREG(*addrg);		/* pointer to base of bitmap */
+    int		    ngwidth;		/* width in longwords of bitmap */
+    register int    signdx;
+    int		    signdy;		/* signs of directions */
+    int		    axis;		/* major axis (Y_AXIS or X_AXIS) */
+    int		    x1, y1;		/* initial point */
+    register int    e;			/* error accumulator */
+    register int    e1;			/* bresenham increments */
+    int		    e2;
+    int		    len;		/* length of line */
+{
+    register int	e3 = e2-e1;
+    INTER_DECLAREG(bit);
+    INTER_DECLAREG(leftbit);
+    INTER_DECLAREG(rightbit);
+
+    /* point to longword containing first point */
+    addrg = addrg + y1 * ngwidth + (x1 >> INTER_PGSH) * INTER_PLANES; 
+
+    if (signdy < 0)
+	    ngwidth = -ngwidth;
+    e = e-e1;			/* to make looping easier */
+
+    leftbit = iplmask[0];
+    rightbit = iplmask[INTER_PPG-1];
+    bit = iplmask[x1 & INTER_PIM];
+
+    if (axis == X_AXIS)
+    {
+	if (signdx > 0)
+	{
+	    while (len--)
+	    { 
+		INTER_DoMaskRRop(addrg, andp, xorp, bit, addrg);
+		bit = bit >> 1;
+		e += e1;
+		if (e >= 0)
+		{
+		    addrg += ngwidth;
+		    e += e3;
+		}
+		if (!bit)
+		{
+		    bit = leftbit;
+		    addrg += INTER_PLANES;
+		}
+	    }
+	}
+	else
+	{
+	    while (len--)
+	    { 
+		INTER_DoMaskRRop(addrg, andp, xorp, bit, addrg);
+		e += e1;
+		bit = bit << 1;
+		if (e >= 0)
+		{
+		    addrg += ngwidth;
+		    e += e3;
+		}
+		if (!bit)
+		{
+		    bit = rightbit;
+		    addrg -= INTER_PLANES;
+		}
+	    }
+	}
+    } /* if X_AXIS */
+    else
+    {
+	if (signdx > 0)
+	{
+	    while(len--)
+	    {
+		INTER_DoMaskRRop(addrg, andp, xorp, bit, addrg);
+		e += e1;
+		if (e >= 0)
+		{
+		    bit = bit >> 1;
+		    if (!bit)
+		    {
+			bit = leftbit;
+			addrg += INTER_PLANES;
+		    }
+		    e += e3;
+		}
+		addrg += ngwidth;
+	    }
+	}
+	else
+	{
+	    while(len--)
+	    {
+		INTER_DoMaskRRop(addrg, andp, xorp, bit, addrg);
+		e += e1;
+		if (e >= 0)
+		{
+		    bit = bit << 1;
+		    if (!bit)
+		    {
+			bit = rightbit;
+			addrg -= INTER_PLANES;
+		    }
+		    e += e3;
+		}
+		addrg += ngwidth;
+	    }
+	}
+    } /* else Y_AXIS */
+}