Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / programs / Xserver / mfb / mfbpolypnt.c

diff --git a/Xserver/programs/Xserver/mfb/mfbpolypnt.c b/Xserver/programs/Xserver/mfb/mfbpolypnt.c
new file mode 100644 (file)
index 0000000..fe9fca3
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+++ b/Xserver/programs/Xserver/mfb/mfbpolypnt.c
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+/* 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.
+
+******************************************************************/
+/* $XConsortium: mfbpolypnt.c,v 5.6 94/04/17 20:28:30 dpw Exp $ */
+
+#include "X.h"
+#include "Xprotostr.h"
+#include "pixmapstr.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "miscstruct.h"
+#include "regionstr.h"
+#include "scrnintstr.h"
+
+#include "mfb.h"
+#include "maskbits.h"
+
+void
+mfbPolyPoint(pDrawable, pGC, mode, npt, pptInit)
+    register DrawablePtr pDrawable;
+    GCPtr      pGC;
+    int                mode;           /* Origin or Previous */
+    int                npt;
+    xPoint     *pptInit;
+{
+
+    register BoxPtr pbox;
+    register int nbox;
+
+    register PixelType *addrl;
+    int nlwidth;
+
+    int nptTmp;
+    register xPoint *ppt;
+
+    register int x;
+    register int y;
+    register int rop;
+    mfbPrivGC  *pGCPriv;
+
+    if (!(pGC->planemask & 1))
+       return;
+
+    pGCPriv = (mfbPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr;
+    rop = pGCPriv->rop;
+
+    mfbGetPixelWidthAndPointer(pDrawable, nlwidth, addrl);
+
+    if ((mode == CoordModePrevious) && (npt > 1))
+    {
+       for (ppt = pptInit + 1, nptTmp = npt - 1; --nptTmp >= 0; ppt++)
+       {
+           ppt->x += (ppt-1)->x;
+           ppt->y += (ppt-1)->y;
+       }
+    }
+
+    nbox = REGION_NUM_RECTS(pGCPriv->pCompositeClip);
+    pbox = REGION_RECTS(pGCPriv->pCompositeClip);
+    for (; --nbox >= 0; pbox++)
+    {
+       if (rop == RROP_BLACK)
+       {
+           for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++)
+           {
+               x = ppt->x + pDrawable->x;
+               y = ppt->y + pDrawable->y;
+               if ((x >= pbox->x1) && (x < pbox->x2) &&
+                   (y >= pbox->y1) && (y < pbox->y2))
+                   *mfbScanline(addrl, x, y, nlwidth) &= rmask[x & PIM];
+           }
+       }
+       else if (rop == RROP_WHITE)
+       {
+           for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++)
+           {
+               x = ppt->x + pDrawable->x;
+               y = ppt->y + pDrawable->y;
+               if ((x >= pbox->x1) && (x < pbox->x2) &&
+                   (y >= pbox->y1) && (y < pbox->y2))
+                   *mfbScanline(addrl, x, y, nlwidth) |= mask[x & PIM];
+           }
+       }
+       else if (rop == RROP_INVERT)
+       {
+           for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++)
+           {
+               x = ppt->x + pDrawable->x;
+               y = ppt->y + pDrawable->y;
+               if ((x >= pbox->x1) && (x < pbox->x2) &&
+                   (y >= pbox->y1) && (y < pbox->y2))
+                   *mfbScanline(addrl, x, y, nlwidth) ^= mask[x & PIM];
+           }
+       }
+    }
+}