ale_accum.h

   1 // Copyright 2002, 2004 David Hilvert <dhilvert@auricle.dyndns.org>,
   2 //                                    <dhilvert@ugcs.caltech.edu>
   3
   4 /*  This file is part of the Anti-Lamenessing Engine.
   5
   6     The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 3 of the License, or
   9     (at your option) any later version.
  10
  11     The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with the Anti-Lamenessing Engine; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21 #ifndef __ale_accum_h__
  22 #define __ale_accum_h__
  23
  24 #include "ale_fixed.h"
  25
  26 #define FIXED16 4
  27 #define FIXED32 5
  28
  29 /*
  30  * Real-valued type used when accumulating over the domain of an image.
  31  */
  32
  33 #if ALE_COLORS == FIXED16
  34
  35 typedef ale_fixed<ale_fixed_16_accum,12> ale_accum;
  36
  37 #define ale_accum_enable_casting() ale_accum::enable_casting()
  38 #define ale_accum_disable_casting() ale_accum::disable_casting()
  39
  40 #elif ALE_COLORS == FIXED32
  41
  42 typedef ale_fixed<ale_fixed_32_accum,15> ale_accum;
  43
  44 #define ale_accum_enable_casting() ale_accum::enable_casting()
  45 #define ale_accum_disable_casting() ale_accum::disable_casting()
  46
  47 #else
  48
  49 typedef double ale_accum;
  50
  51 #define ale_accum_disable_casting()
  52 #define ale_accum_enable_casting()
  53
  54 #endif
  55
  56 #undef FIXED32
  57 #undef FIXED16
  58
  59 #endif