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
|
/* 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.
*
*/
#include "ResourceManager.h"
namespace Cryo {
ResourceManager::ResourceManager() {
}
ResourceManager::ResourceManager(const Common::String &datFileName) {
LoadDatFile(datFileName);
}
ResourceManager::~ResourceManager() {
}
bool ResourceManager::LoadDatFile(const Common::String &datFileName) {
if (_datFile.isOpen()) {
_datFile.close();
_files.clear();
}
assert(_datFile.open(datFileName));
uint16 numFiles = _datFile.readUint16LE();
for (uint16 i = 0; i < numFiles; i++) {
DatFileEntry entry;
_datFile.read(entry._name, sizeof(entry._name));
entry._size = _datFile.readUint32LE();
entry._offset = _datFile.readUint32LE();
entry._flag = _datFile.readByte();
_files.push_back(entry);
}
return true;
}
Common::SeekableReadStream *ResourceManager::GetFile(const Common::String &resName, unsigned int hintIndex) {
// First, try raw disk file so we can support modding/patching
if (Common::File::exists(resName)) {
debug("Loading %s from disk", resName);
Common::File *resource = new Common::File();
resource->open(resName);
return resource;
}
// Look inside .dat file
if (_datFile.isOpen()) {
for (unsigned int i = hintIndex; i < _files.size(); i++) {
if (!resName.compareToIgnoreCase(_files[i]._name)) {
debug("Loading %s from dat file", resName);
Common::SeekableSubReadStream *resource = new Common::SeekableSubReadStream(&_datFile, _files[i]._offset, _files[i]._offset + _files[i]._size);
return resource;
}
}
}
debug("Unable to load %s - does't exists", resName);
return nullptr;
}
Common::SeekableReadStream *ResourceManager::GetFile(unsigned int resIndex) {
if (_files.size() > resIndex) {
return GetFile(Common::String(_files[resIndex]._name), resIndex);
}
return nullptr;
}
void *ResourceManager::StreamToBuffer(Common::SeekableReadStream *stream, unsigned int *size) {
if (!stream)
return nullptr;
unsigned int readSize = stream->size();
byte *data = new byte[readSize + 1];
readSize = stream->read(data, readSize);
if (size)
*size = readSize;
return data;
}
void *ResourceManager::GetData(const Common::String &resName, unsigned int *size) {
Common::SeekableReadStream *resource = GetFile(resName);
void *data = StreamToBuffer(resource, size);
delete resource;
return data;
}
void *ResourceManager::GetData(int resIndex, unsigned int *size) {
Common::SeekableReadStream *resource = GetFile(resIndex);
void *data = StreamToBuffer(resource, size);
delete resource;
return data;
}
}
|
