1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/*
* Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
*
* 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
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dbcfile.h"
DBCFile::DBCFile()
{
data = NULL;
fieldsOffset = NULL;
}
bool DBCFile::Load(const char *filename, const char *fmt)
{
uint32 header;
if(data)
{
delete [] data;
data=NULL;
}
FILE * f=fopen(filename,"rb");
if(!f)return false;
fread(&header,4,1,f); // Number of records
EndianConvert(header);
if(header!=0x43424457)
{
//printf("not dbc file");
return false; //'WDBC'
}
fread(&recordCount,4,1,f); // Number of records
EndianConvert(recordCount);
fread(&fieldCount,4,1,f); // Number of fields
EndianConvert(fieldCount);
fread(&recordSize,4,1,f); // Size of a record
EndianConvert(recordSize);
fread(&stringSize,4,1,f); // String size
EndianConvert(stringSize);
fieldsOffset = new uint32[fieldCount];
fieldsOffset[0] = 0;
for(uint32 i = 1; i < fieldCount; i++)
{
fieldsOffset[i] = fieldsOffset[i - 1];
if (fmt[i - 1] == 'b' || fmt[i - 1] == 'X') // byte fields
fieldsOffset[i] += 1;
else // 4 byte fields (int32/float/strings)
fieldsOffset[i] += 4;
}
data = new unsigned char[recordSize*recordCount+stringSize];
stringTable = data + recordSize*recordCount;
fread(data,recordSize*recordCount+stringSize,1,f);
fclose(f);
return true;
}
DBCFile::~DBCFile()
{
if(data)
delete [] data;
if(fieldsOffset)
delete [] fieldsOffset;
}
DBCFile::Record DBCFile::getRecord(size_t id)
{
assert(data);
return Record(*this, data + id*recordSize);
}
uint32 DBCFile::GetFormatRecordSize(const char * format,int32* index_pos)
{
uint32 recordsize = 0;
int32 i = -1;
for(uint32 x=0; format[x];++x)
switch(format[x])
{
case FT_FLOAT:
case FT_INT:
recordsize+=4;
break;
case FT_STRING:
recordsize+=sizeof(char*);
break;
case FT_SORT:
i=x;
break;
case FT_IND:
i=x;
recordsize+=4;
break;
case FT_BYTE:
recordsize += 1;
break;
}
if(index_pos)
*index_pos = i;
return recordsize;
}
char* DBCFile::AutoProduceData(const char* format, uint32& records, char**& indexTable)
{
/*
format STRING, NA, FLOAT,NA,INT <=>
struct{
char* field0,
float field1,
int field2
}entry;
this func will generate entry[rows] data;
*/
typedef char * ptr;
if(strlen(format)!=fieldCount)
return NULL;
//get struct size and index pos
int32 i;
uint32 recordsize=GetFormatRecordSize(format,&i);
if(i>=0)
{
uint32 maxi=0;
//find max index
for(uint32 y=0;y<recordCount;y++)
{
uint32 ind=getRecord(y).getUInt (i);
if(ind>maxi)maxi=ind;
}
++maxi;
records=maxi;
indexTable=new ptr[maxi];
memset(indexTable,0,maxi*sizeof(ptr));
}
else
{
records = recordCount;
indexTable = new ptr[recordCount];
}
char* dataTable= new char[recordCount*recordsize];
uint32 offset=0;
for(uint32 y =0;y<recordCount;y++)
{
if(i>=0)
{
indexTable[getRecord(y).getUInt(i)]=&dataTable[offset];
}
else
indexTable[y]=&dataTable[offset];
for(uint32 x=0;x<fieldCount;x++)
{
switch(format[x])
{
case FT_FLOAT:
*((float*)(&dataTable[offset]))=getRecord(y).getFloat(x);
offset+=4;
break;
case FT_IND:
case FT_INT:
*((uint32*)(&dataTable[offset]))=getRecord(y).getUInt(x);
offset+=4;
break;
case FT_BYTE:
*((uint8*)(&dataTable[offset]))=getRecord(y).getUInt8(x);
offset+=1;
break;
case FT_STRING:
*((char**)(&dataTable[offset]))=NULL; // will be replaces non-empty or "" strings in AutoProduceStrings
offset+=sizeof(char*);
break;
}
}
}
return dataTable;
}
char* DBCFile::AutoProduceStrings(const char* format, char* dataTable)
{
if(strlen(format)!=fieldCount)
return NULL;
char* stringPool= new char[stringSize];
memcpy(stringPool,stringTable,stringSize);
uint32 offset=0;
for(uint32 y =0;y<recordCount;y++)
{
for(uint32 x=0;x<fieldCount;x++)
switch(format[x])
{
case FT_FLOAT:
case FT_IND:
case FT_INT:
offset+=4;
break;
case FT_BYTE:
offset+=1;
break;
case FT_STRING:
// fill only not filled entries
char** slot = (char**)(&dataTable[offset]);
if(!*slot || !**slot)
{
const char * st = getRecord(y).getString(x);
*slot=stringPool+(st-(const char*)stringTable);
}
offset+=sizeof(char*);
break;
}
}
return stringPool;
}
|
