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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#include "engines/wintermute/dcgf.h"
#include "engines/wintermute/Base/BGame.h"
#include "engines/wintermute/wintypes.h"
#include "engines/wintermute/Base/BPkgFile.h"
#include "engines/wintermute/Base/BDiskFile.h"
#include "engines/wintermute/Base/BFileManager.h"
#include "common/stream.h"
#include "common/file.h"
namespace WinterMute {
//////////////////////////////////////////////////////////////////////////
CBDiskFile::CBDiskFile(CBGame *inGame): CBFile(inGame) {
_file = NULL;
_data = NULL;
_compressed = false;
_prefixSize = 0;
}
//////////////////////////////////////////////////////////////////////////
CBDiskFile::~CBDiskFile() {
Close();
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBDiskFile::Open(const Common::String &Filename) {
Close();
char FullPath[MAX_PATH];
for (int i = 0; i < Game->_fileManager->_singlePaths.GetSize(); i++) {
sprintf(FullPath, "%s%s", Game->_fileManager->_singlePaths[i], Filename.c_str());
CorrectSlashes(FullPath);
//_file = Common::createFileStream(FullPath);
Common::File *tempFile = new Common::File();
if (tempFile->open(FullPath)) {
_file = tempFile;
} else {
delete tempFile;
}
/* if (_file != NULL) {
error("Tried to open %s, but failed", Filename.c_str());
break;
}*/
}
// if we didn't find it in search paths, try to open directly
if (!_file) {
strcpy(FullPath, Filename.c_str());
CorrectSlashes(FullPath);
//error("Tried to open %s, TODO: add SearchMan-support", Filename.c_str());
//_file = Common::createFileStream(FullPath);
Common::File *tempFile = new Common::File();
if (tempFile->open(FullPath)) {
_file = tempFile;
} else {
delete tempFile;
}
}
if (_file) {
uint32 magic1, magic2;
magic1 = _file->readUint32LE();
magic2 = _file->readUint32LE();
if (magic1 == DCGF_MAGIC && magic2 == COMPRESSED_FILE_MAGIC) _compressed = true;
if (_compressed) {
uint32 DataOffset, CompSize, UncompSize;
DataOffset = _file->readUint32LE();
CompSize = _file->readUint32LE();
UncompSize = _file->readUint32LE();
byte *CompBuffer = new byte[CompSize];
if (!CompBuffer) {
Game->LOG(0, "Error allocating memory for compressed file '%s'", Filename.c_str());
Close();
return E_FAIL;
}
_data = new byte[UncompSize];
if (!_data) {
Game->LOG(0, "Error allocating buffer for file '%s'", Filename.c_str());
delete [] CompBuffer;
Close();
return E_FAIL;
}
_file->seek(DataOffset + _prefixSize, SEEK_SET);
_file->read(CompBuffer, CompSize);
if (uncompress(_data, (uLongf *)&UncompSize, CompBuffer, CompSize) != Z_OK) {
Game->LOG(0, "Error uncompressing file '%s'", Filename.c_str());
delete [] CompBuffer;
Close();
return E_FAIL;
}
delete [] CompBuffer;
_size = UncompSize;
_pos = 0;
delete _file;
_file = NULL;
} else {
_pos = 0;
_file->seek(0, SEEK_END);
_size = _file->pos() - _prefixSize;
_file->seek(_prefixSize, SEEK_SET);
}
return S_OK;
} else return E_FAIL;
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBDiskFile::Close() {
if (_file) {
delete _file;
}
_file = NULL;
_pos = 0;
_size = 0;
delete[] _data;
_data = NULL;
_compressed = false;
return S_OK;
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBDiskFile::Read(void *Buffer, uint32 Size) {
if (_compressed) {
memcpy(Buffer, _data + _pos, Size);
_pos += Size;
return S_OK;
} else {
if (_file) {
size_t count = _file->read(Buffer, Size);
_pos += count;
return S_OK;
} else return E_FAIL;
}
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBDiskFile::Seek(uint32 Pos, TSeek Origin) {
// TODO: Should this really need to use uint32?
if (_compressed) {
uint32 NewPos = 0;
switch (Origin) {
case SEEK_TO_BEGIN:
NewPos = Pos;
break;
case SEEK_TO_END:
NewPos = _size + Pos;
break;
case SEEK_TO_CURRENT:
NewPos = _pos + Pos;
break;
}
if (NewPos < 0 || NewPos > _size) return E_FAIL;
else _pos = NewPos;
return S_OK;
} else {
if (!_file) return E_FAIL;
int ret = 1;
switch (Origin) {
case SEEK_TO_BEGIN:
ret = _file->seek(_prefixSize + Pos, SEEK_SET);
break;
case SEEK_TO_END:
ret = _file->seek(Pos, SEEK_END);
break;
case SEEK_TO_CURRENT:
ret = _file->seek(Pos, SEEK_CUR);
break;
}
if (ret == 0) {
_pos = _file->pos() - _prefixSize;
return S_OK;
} else return E_FAIL;
}
}
//////////////////////////////////////////////////////////////////////////
void CBDiskFile::CorrectSlashes(char *fileName) {
for (size_t i = 0; i < strlen(fileName); i++) {
if (fileName[i] == '\\') fileName[i] = '/';
}
}
} // end of namespace WinterMute
|
