BSD 4_4_Lite2 development

Work on file usr/src/contrib/X11R5-hp300/mit/server/ddx/hpbsd/cfb/cfbpolypnt.c

Synthesized-from: CSRG/cd3/4.4BSD-Lite2

diff --git a/usr/src/contrib/X11R5-hp300/mit/server/ddx/hpbsd/cfb/cfbpolypnt.c b/usr/src/contrib/X11R5-hp300/mit/server/ddx/hpbsd/cfb/cfbpolypnt.c
new file mode 100644 (file)
index 0000000..9524680
--- /dev/null
+++ b/usr/src/contrib/X11R5-hp300/mit/server/ddx/hpbsd/cfb/cfbpolypnt.c
@@ -0,0 +1,131 @@
+/************************************************************
+Copyright 1989 by The Massachusetts Institute of Technology
+
+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
+no- tice appear in all copies and that both that copyright
+no- tice and this permission notice appear in supporting
+docu- mentation, and that the name of MIT not be used in
+advertising or publicity pertaining to distribution of the
+software without specific prior written permission.
+M.I.T. makes no representation about the suitability of
+this software for any purpose. It is provided "as is"
+without any express or implied warranty.
+
+********************************************************/
+
+/* $XConsortium: cfbpolypnt.c,v 5.13 91/07/14 13:51:14 keith Exp $ */
+
+#include "X.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "scrnintstr.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+
+#define isClipped(c,ul,lr)  ((((c) - (ul)) | ((lr) - (c))) & ClipMask)
+
+#define PointLoop(fill) { \
+    for (nbox = REGION_NUM_RECTS(cclip), pbox = REGION_RECTS(cclip); \
+        --nbox >= 0; \
+        pbox++) \
+    { \
+       c1 = *((long *) &pbox->x1) - off; \
+       c2 = *((long *) &pbox->x2) - off - 0x00010001; \
+       for (ppt = (long *) pptInit, i = npt; --i >= 0;) \
+       { \
+           pt = *ppt++; \
+           if (!isClipped(pt,c1,c2)) { \
+               fill \
+           } \
+       } \
+    } \
+}
+
+void
+cfbPolyPoint(pDrawable, pGC, mode, npt, pptInit)
+    DrawablePtr pDrawable;
+    GCPtr pGC;
+    int mode;
+    int npt;
+    xPoint *pptInit;
+{
+    register long   pt;
+    register long   c1, c2;
+    register unsigned long   ClipMask = 0x80008000;
+    register unsigned long   xor;
+#if PPW == 4
+    register unsigned char   *addrb;
+    register int    nbwidth;
+    unsigned char   *addrbt;
+#else
+    register unsigned long    *addrl;
+    register int    nlwidth;
+    unsigned long   *addrlt;
+#endif
+    register long   *ppt;
+    RegionPtr      cclip;
+    int                    nbox;
+    register int    i;
+    register BoxPtr pbox;
+    long           and;
+    int                    rop = pGC->alu;
+    int                    off;
+    cfbPrivGCPtr    devPriv;
+    xPoint         *pptPrev;
+
+    devPriv = (cfbPrivGC *)(pGC->devPrivates[cfbGCPrivateIndex].ptr); 
+    rop = devPriv->rop;
+    if (rop == GXnoop)
+       return;
+    cclip = devPriv->pCompositeClip;
+    xor = devPriv->xor;
+    if ((mode == CoordModePrevious) && (npt > 1))
+    {
+       for (pptPrev = pptInit + 1, i = npt - 1; --i >= 0; pptPrev++)
+       {
+           pptPrev->x += (pptPrev-1)->x;
+           pptPrev->y += (pptPrev-1)->y;
+       }
+    }
+    off = *((int *) &pDrawable->x);
+    off -= (off & 0x8000) << 1;
+    SET_REGISTERS_FOR_WRITING(pDrawable->pScreen, ~0, GXcopy);
+#if PPW == 4
+    cfbGetByteWidthAndPointer(pDrawable, nbwidth, addrb);
+    addrb = addrb + pDrawable->y * nbwidth + pDrawable->x;
+    if (rop == GXcopy)
+    {
+       if (!(nbwidth & (nbwidth - 1)))
+       {
+           nbwidth = ffs(nbwidth) - 1;
+           PointLoop(*(addrb + (intToY(pt) << nbwidth) + intToX(pt)) = xor;)
+       }
+#ifdef sun
+       else if (nbwidth == 1152)
+       {
+           register int    y;
+           PointLoop(y = intToY(pt); *(addrb + (y << 10) + (y << 7) + intToX(pt)) = xor;)
+       }
+#endif
+       else
+       {
+           PointLoop(*(addrb + intToY(pt) * nbwidth + intToX(pt)) = xor;)
+       }
+    }
+    else
+    {
+       and = devPriv->and;
+       PointLoop(  addrbt = addrb + intToY(pt) * nbwidth + intToX(pt);
+                   *addrbt = DoRRop (*addrbt, and, xor);)
+    }
+#else
+    cfbGetLongWidthAndPointer(pDrawable, nlwidth, addrl);
+    and = devPriv->and;
+    PointLoop( addrlt = addrl + intToY(pt) * nlwidth + intToX(pt);
+               *addrlt = DoRRop (*addrlt, and, xor); )
+#endif
+}