1 files changed, 135 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/mfbhrzvert.c b/xorg-server/hw/xfree86/xf4bpp/mfbhrzvert.c
new file mode 100644
index 000000000..3444f48f5
--- /dev/null
+++ b/xorg-server/hw/xfree86/xf4bpp/mfbhrzvert.c
@@ -0,0 +1,135 @@
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/***********************************************************
+
+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.
+
+******************************************************************/
+/* GJA -- modified this file for vga16 */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "xf4bpp.h"
+#include "OScompiler.h"
+#include "mfbmap.h"
+#include "mfb.h"
+#include "maskbits.h"
+#include "wm3.h"
+
+/* horizontal solid line
+   abs(len) > 1
+*/
+
+void
+xf4bppHorzS(addrl, nlwidth, x1, y1, len)
+register PixelType *addrl;	/* pointer to base of bitmap */
+register int nlwidth;	/* width in longwords of bitmap */
+int x1;			/* initial point */ 
+int y1;
+int len;		/* length of line */
+{
+    register PixelType startmask;
+    register PixelType endmask;
+    register int nlmiddle;
+
+
+    /* force the line to go left to right
+       but don't draw the last point
+    */
+    if (len < 0)
+    {
+	x1 += len;
+	x1 += 1;
+	len = -len;
+    }
+
+    addrl = mfbScanline(addrl, x1, y1, nlwidth);
+
+    /* all bits inside same longword */
+    if ( ((x1 & PIM) + len) < PPW)
+    {
+	maskpartialbits(x1, len, startmask);
+	UPDRW(addrl,startmask);
+    }
+    else
+    {
+	maskbits(x1, len, startmask, endmask, nlmiddle);
+	if (startmask) {
+	    UPDRW(addrl,startmask); addrl++;
+	}
+	Duff (nlmiddle, UPDRW(addrl,~0); addrl++);
+	if (endmask) {
+	    UPDRW(addrl,endmask);
+	}
+    }
+}
+
+/* vertical solid line
+   this uses do loops because pcc (Ultrix 1.2, bsd 4.2) generates
+   better code.  sigh.  we know that len will never be 0 or 1, so
+   it's OK to use it.
+*/
+
+void
+xf4bppVertS(addrl, nlwidth, x1, y1, len)
+register PixelType *addrl;	/* pointer to base of bitmap */
+register int nlwidth;	/* width in longwords of bitmap */
+int x1, y1;		/* initial point */
+register int len;	/* length of line */
+{
+    register PixelType bitmask;
+
+    addrl = mfbScanline(addrl, x1, y1, nlwidth);
+
+    if (len < 0)
+    {
+	nlwidth = -nlwidth;
+	len = -len;
+    }
+ 
+    bitmask = mfbGetmask(x1 & PIM);
+    Duff(len, UPDRW(addrl,bitmask); addrl += nlwidth);
+}