pith/bitmap.h

   1 /*
   2  * $Id: bitmap.h 761 2007-10-23 22:35:18Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2013-2020 Eduardo Chappa
   6  * Copyright 2006 University of Washington
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * ========================================================================
  15  */
  16
  17 #ifndef PITH_BITMAP_INCLUDED
  18 #define PITH_BITMAP_INCLUDED
  19
  20
  21 #include "../pith/conftype.h"
  22
  23
  24 /*
  25  * Max size of a bitmap based on largest customer: feature list count
  26  * Problems if a screen's keymenu bitmap ever gets wider than feature list.
  27  */
  28 #define BM_SIZE                 ((F_FEATURE_LIST_COUNT / 8)                \
  29                                       + ((F_FEATURE_LIST_COUNT % 8) ? 1 : 0))
  30
  31 typedef unsigned char bitmap_t[BM_SIZE];
  32
  33 /* clear entire bitmap */
  34 #define clrbitmap(map)          memset((void *)(map), 0, (size_t)BM_SIZE)
  35
  36 /* set entire bitmap */
  37 #define setbitmap(map)          memset((void *)(map), 0xff, (size_t)BM_SIZE)
  38
  39
  40 #endif /* PITH_BITMAP_INCLUDED */