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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: deh_mapping.c 687 2006-10-05 22:12:22Z fraggle $
//
// Copyright(C) 2005 Simon Howard
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
// $Log$
// Revision 1.3 2005/10/08 20:54:16 fraggle
// Proper dehacked error/warning framework. Catch a load more errors.
//
// Revision 1.2 2005/10/08 20:14:24 fraggle
// Add the ability to specify unsupported fields
//
// Revision 1.1 2005/10/03 10:25:37 fraggle
// Add mapping code to map out structures and switch thing/frame code to use
// this.
//
//
//-----------------------------------------------------------------------------
//
// Dehacked "mapping" code
// Allows the fields in structures to be mapped out and accessed by
// name
//
//-----------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "i_system.h"
#include "deh_mapping.h"
//
// Set the value of a particular field in a structure by name
//
boolean DEH_SetMapping(deh_context_t *context, deh_mapping_t *mapping,
void *structptr, char *name, int value)
{
int i;
for (i=0; mapping->entries[i].name != NULL; ++i)
{
deh_mapping_entry_t *entry = &mapping->entries[i];
if (!strcasecmp(entry->name, name))
{
void *location;
if (entry->location == NULL)
{
DEH_Warning(context, "Field '%s' is unsupported", name);
return false;
}
location = structptr + (entry->location - mapping->base);
// printf("Setting %p::%s to %i (%i bytes)\n",
// structptr, name, value, entry->size);
switch (entry->size)
{
case 1:
* ((unsigned char *) location) = value;
break;
case 2:
* ((unsigned short *) location) = value;
break;
case 4:
* ((unsigned int *) location) = value;
break;
default:
DEH_Error(context, "Unknown field type for '%s' (BUG)", name);
return false;
}
return true;
}
}
// field with this name not found
DEH_Warning(context, "Field named '%s' not found", name);
return false;
}
void DEH_StructMD5Sum(md5_context_t *context, deh_mapping_t *mapping,
void *structptr)
{
int i;
// Go through each mapping
for (i=0; mapping->entries[i].name != NULL; ++i)
{
deh_mapping_entry_t *entry = &mapping->entries[i];
void *location;
if (entry->location == NULL)
{
// Unsupported field
continue;
}
// Add in data for this field
location = structptr + (entry->location - mapping->base);
switch (entry->size)
{
case 1:
MD5_UpdateInt32(context, *((unsigned char *) location));
break;
case 2:
MD5_UpdateInt32(context, *((unsigned short *) location));
break;
case 4:
MD5_UpdateInt32(context, *((unsigned int *) location));
break;
default:
I_Error("Unknown dehacked mapping field type for '%s' (BUG)",
entry->name);
break;
}
}
}
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