xorg-server-1.4/hw/xfree86/xf4bpp/ppcSpMcro.h

   1 /*
   2  * Copyright IBM Corporation 1987,1988,1989
   3  *
   4  * All Rights Reserved
   5  *
   6  * Permission to use, copy, modify, and distribute this software and its
   7  * documentation for any purpose and without fee is hereby granted,
   8  * provided that the above copyright notice appear in all copies and that
   9  * both that copyright notice and this permission notice appear in
  10  * supporting documentation, and that the name of IBM not be
  11  * used in advertising or publicity pertaining to distribution of the
  12  * software without specific, written prior permission.
  13  *
  14  * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  15  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  16  * IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  17  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  18  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  19  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  20  * SOFTWARE.
  21  *
  22 */
  23
  24 /* This screwy macro is used in all the spans routines and you find
  25    it all over the place, so it is a macro just to tidy things up.
  26 */
  27
  28 #define SETSPANPTRS(IN,N,IPW,PW,IPPT,PPT,FPW,FPPT,FSORT)                \
  29         {                                                               \
  30         N = IN * miFindMaxBand(pGC->pCompositeClip);                    \
  31         if(!(PW = (int *)ALLOCATE_LOCAL(N * sizeof(int))))              \
  32                 return;                                                 \
  33         if(!(PPT = (DDXPointRec *)ALLOCATE_LOCAL(N * sizeof(DDXPointRec)))) \
  34                 {                                                       \
  35                 DEALLOCATE_LOCAL(PW);                                   \
  36                 return;                                                 \
  37                 }                                                       \
  38         FPW = PW;                                                       \
  39         FPPT = PPT;                                                     \
  40         N = miClipSpans(pGC->pCompositeClip, IPPT, IPW, IN,             \
  41                 PPT, PW, FSORT);                                        \
  42         }
  43