src/deh_mapping.h

   1 // Emacs style mode select   -*- C++ -*-
   2 //-----------------------------------------------------------------------------
   3 //
   4 // Copyright(C) 2005 Simon Howard
   5 //
   6 // This program is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU General Public License
   8 // as published by the Free Software Foundation; either version 2
   9 // of the License, or (at your option) any later version.
  10 //
  11 // This program 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 this program; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 // 02111-1307, USA.
  20 //
  21 //-----------------------------------------------------------------------------
  22 //
  23 // Dehacked "mapping" code
  24 // Allows the fields in structures to be mapped out and accessed by
  25 // name
  26 //
  27 //-----------------------------------------------------------------------------
  28
  29 #ifndef DEH_MAPPING_H
  30 #define DEH_MAPPING_H
  31
  32 #include "doomtype.h"
  33 #include "deh_io.h"
  34 #include "md5.h"
  35
  36 #define DEH_BEGIN_MAPPING(mapping_name, structname)           \
  37     static structname deh_mapping_base;                       \
  38     static deh_mapping_t mapping_name =                       \
  39     {                                                         \
  40         &deh_mapping_base,                                    \
  41         {
  42
  43 #define DEH_MAPPING(deh_name, fieldname)                      \
  44              {deh_name, &deh_mapping_base.fieldname,          \
  45                  sizeof(deh_mapping_base.fieldname)},
  46
  47 #define DEH_UNSUPPORTED_MAPPING(deh_name)                     \
  48              {deh_name, NULL, -1},
  49
  50 #define DEH_END_MAPPING                                       \
  51              {NULL, NULL, -1}                                 \
  52         }                                                     \
  53     };
  54
  55
  56
  57 #define MAX_MAPPING_ENTRIES 32
  58
  59 typedef struct deh_mapping_s deh_mapping_t;
  60 typedef struct deh_mapping_entry_s deh_mapping_entry_t;
  61
  62 struct deh_mapping_entry_s
  63 {
  64     // field name
  65
  66     char *name;
  67
  68     // location relative to the base in the deh_mapping_t struct
  69     // If this is NULL, it is an unsupported mapping
  70
  71     void *location;
  72
  73     // field size
  74
  75     int size;
  76 };
  77
  78 struct deh_mapping_s
  79 {
  80     void *base;
  81     deh_mapping_entry_t entries[MAX_MAPPING_ENTRIES];
  82 };
  83
  84 boolean DEH_SetMapping(deh_context_t *context, deh_mapping_t *mapping,
  85                        void *structptr, char *name, int value);
  86 void DEH_StructMD5Sum(md5_context_t *context, deh_mapping_t *mapping,
  87                       void *structptr);
  88
  89 #endif /* #ifndef DEH_MAPPING_H */
  90