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+/***********************************************************
+
+Copyright 1987,1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+
+
+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.
+
+******************************************************************/
+/* $Xorg: cfbhrzvert.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */
+#include "X.h"
+
+#include "gc.h"
+#include "window.h"
+#include "pixmap.h"
+#include "region.h"
+
+#include "cfb.h"
+#include "cfbmskbits.h"
+
+/* horizontal solid line
+ abs(len) > 1
+*/
+cfbHorzS(rop, and, xor, addrl, nlwidth, x1, y1, len)
+register int rop;
+register unsigned long and;
+register unsigned long xor;
+register unsigned long *addrl; /* pointer to base of bitmap */
+int nlwidth; /* width in longwords of bitmap */
+int x1; /* initial point */
+int y1;
+int len; /* length of line */
+{
+ register int nlmiddle;
+ register unsigned long startmask;
+ register unsigned long endmask;
+
+ addrl = addrl + (y1 * nlwidth) + (x1 >> PWSH);
+
+ /* all bits inside same longword */
+ if ( ((x1 & PIM) + len) < PPW)
+ {
+ maskpartialbits(x1, len, startmask);
+ *addrl = DoMaskRRop (*addrl, and, xor, startmask);
+ }
+ else
+ {
+ maskbits(x1, len, startmask, endmask, nlmiddle);
+ if (rop == GXcopy)
+ {
+ if (startmask)
+ {
+ *addrl = (*addrl & ~startmask) | (xor & startmask);
+ addrl++;
+ }
+ while (nlmiddle--)
+ *addrl++ = xor;
+ if (endmask)
+ *addrl = (*addrl & ~endmask) | (xor & endmask);
+ }
+ else
+ {
+ if (startmask)
+ {
+ *addrl = DoMaskRRop (*addrl, and, xor, startmask);
+ addrl++;
+ }
+ if (rop == GXxor)
+ {
+ while (nlmiddle--)
+ *addrl++ ^= xor;
+ }
+ else
+ {
+ while (nlmiddle--)
+ {
+ *addrl = DoRRop (*addrl, and, xor);
+ addrl++;
+ }
+ }
+ if (endmask)
+ *addrl = DoMaskRRop (*addrl, and, xor, endmask);
+ }
+ }
+}
+
+/* vertical solid line */
+
+cfbVertS(rop, and, xor, addrl, nlwidth, x1, y1, len)
+int rop;
+register unsigned long and, xor;
+register unsigned long *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 */
+{
+#ifdef PIXEL_ADDR
+ register PixelType *bits = (PixelType *) addrl;
+
+ nlwidth <<= PWSH;
+ bits = bits + (y1 * nlwidth) + x1;
+
+ /*
+ * special case copy and xor to avoid a test per pixel
+ */
+ if (rop == GXcopy)
+ {
+ while (len--)
+ {
+ *bits = xor;
+ bits += nlwidth;
+ }
+ }
+ else if (rop == GXxor)
+ {
+ while (len--)
+ {
+ *bits ^= xor;
+ bits += nlwidth;
+ }
+ }
+ else
+ {
+ while (len--)
+ {
+ *bits = DoRRop(*bits, and, xor);
+ bits += nlwidth;
+ }
+ }
+#else /* !PIXEL_ADDR */
+ addrl = addrl + (y1 * nlwidth) + (x1 >> PWSH);
+
+ and |= ~cfbmask[x1 & PIM];
+ xor &= cfbmask[x1 & PIM];
+
+ while (len--)
+ {
+ *addrl = DoRRop (*addrl, and, xor);
+ addrl += nlwidth;
+ }
+#endif
+}