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
|
/* 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 "neverhood/resourceman.h"
namespace Neverhood {
ResourceHandle::ResourceHandle()
: _resourceFileEntry(NULL), _data(NULL) {
}
ResourceHandle::~ResourceHandle() {
}
ResourceMan::ResourceMan() {
}
ResourceMan::~ResourceMan() {
}
void ResourceMan::addArchive(const Common::String &filename) {
BlbArchive *archive = new BlbArchive();
archive->open(filename);
_archives.push_back(archive);
debug(3, "ResourceMan::addArchive(%s) %d files", filename.c_str(), archive->getCount());
for (uint archiveEntryIndex = 0; archiveEntryIndex < archive->getCount(); archiveEntryIndex++) {
BlbArchiveEntry *archiveEntry = archive->getEntry(archiveEntryIndex);
ResourceFileEntry *entry = findEntrySimple(archiveEntry->fileHash);
if (entry) {
if (archiveEntry->timeStamp > entry->archiveEntry->timeStamp) {
entry->archive = archive;
entry->archiveEntry = archiveEntry;
}
} else {
ResourceFileEntry newEntry;
newEntry.resourceHandle = -1;
newEntry.archive = archive;
newEntry.archiveEntry = archiveEntry;
_entries[archiveEntry->fileHash] = newEntry;
}
}
}
ResourceFileEntry *ResourceMan::findEntrySimple(uint32 fileHash) {
EntriesMap::iterator p = _entries.find(fileHash);
return p != _entries.end() ? &(*p)._value : NULL;
}
ResourceFileEntry *ResourceMan::findEntry(uint32 fileHash, ResourceFileEntry **firstEntry) {
ResourceFileEntry *entry = findEntrySimple(fileHash);
if (firstEntry)
*firstEntry = entry;
for (; entry && entry->archiveEntry->comprType == 0x65; fileHash = entry->archiveEntry->diskSize)
entry = findEntrySimple(fileHash);
return entry;
}
Common::SeekableReadStream *ResourceMan::createStream(uint32 fileHash) {
ResourceFileEntry *entry = findEntry(fileHash);
return entry ? entry->archive->createStream(entry->archiveEntry) : NULL;
}
void ResourceMan::queryResource(uint32 fileHash, ResourceHandle &resourceHandle) {
ResourceFileEntry *firstEntry;
resourceHandle._resourceFileEntry = findEntry(fileHash, &firstEntry);
resourceHandle._extData = firstEntry ? firstEntry->archiveEntry->extData : NULL;
}
void ResourceMan::loadResource(ResourceHandle &resourceHandle) {
resourceHandle._data = NULL;
if (resourceHandle.isValid()) {
const uint32 fileHash = resourceHandle.fileHash();
ResourceData *resourceData = _data[fileHash];
if (!resourceData) {
resourceData = new ResourceData();
_data[fileHash] = resourceData;
}
if (resourceData->data != NULL) {
resourceData->dataRefCount++;
} else {
resourceData->data = new byte[resourceHandle._resourceFileEntry->archiveEntry->size];
resourceHandle._resourceFileEntry->archive->load(resourceHandle._resourceFileEntry->archiveEntry, resourceData->data, 0);
resourceData->dataRefCount = 1;
}
resourceHandle._data = resourceData->data;
}
}
void ResourceMan::unloadResource(ResourceHandle &resourceHandle) {
if (resourceHandle.isValid()) {
ResourceData *resourceData = _data[resourceHandle.fileHash()];
if (resourceData && resourceData->dataRefCount > 0)
--resourceData->dataRefCount;
resourceHandle._resourceFileEntry = NULL;
resourceHandle._data = NULL;
}
}
void ResourceMan::purgeResources() {
for (Common::HashMap<uint32, ResourceData*>::iterator it = _data.begin(); it != _data.end(); ++it) {
ResourceData *resourceData = (*it)._value;
if (resourceData->dataRefCount == 0) {
delete[] resourceData->data;
resourceData->data = NULL;
}
}
}
} // End of namespace Neverhood
|
