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/* 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.
*
*/
#ifndef NEVERHOOD_RESOURCEMAN_H
#define NEVERHOOD_RESOURCEMAN_H
#include "common/array.h"
#include "common/file.h"
#include "common/hashmap.h"
#include "neverhood/neverhood.h"
#include "neverhood/blbarchive.h"
namespace Neverhood {
struct ResourceFileEntry {
int resourceHandle;
BlbArchive *archive;
BlbArchiveEntry *archiveEntry;
};
struct Resource {
ResourceFileEntry *entry;
int useRefCount;
};
struct ResourceData {
byte *data;
int dataRefCount;
ResourceData() : data(NULL), dataRefCount() {}
};
class ResourceMan;
struct ResourceHandle {
friend class ResourceMan;
public:
ResourceHandle();
~ResourceHandle();
bool isValid() const { return _resourceFileEntry != NULL && _resourceFileEntry->archiveEntry != NULL; }
byte type() const { return isValid() ? _resourceFileEntry->archiveEntry->type : 0; };
const byte *data() const { return _data; }
uint32 size() const { return isValid() ? _resourceFileEntry->archiveEntry->size : 0; };
const byte *extData() const { return _extData; };
uint32 fileHash() const { return isValid() ? _resourceFileEntry->archiveEntry->fileHash : 0; };
protected:
ResourceFileEntry *_resourceFileEntry;
const byte *_extData;
const byte *_data;
};
class ResourceMan {
public:
ResourceMan();
~ResourceMan();
void addArchive(const Common::String &filename);
ResourceFileEntry *findEntrySimple(uint32 fileHash);
ResourceFileEntry *findEntry(uint32 fileHash, ResourceFileEntry **firstEntry = NULL);
Common::SeekableReadStream *createStream(uint32 fileHash);
const ResourceFileEntry& getEntry(uint index) { return _entries[index]; }
uint getEntryCount() { return _entries.size(); }
void queryResource(uint32 fileHash, ResourceHandle &resourceHandle);
void loadResource(ResourceHandle &resourceHandle);
void unloadResource(ResourceHandle &resourceHandle);
void purgeResources();
protected:
typedef Common::HashMap<uint32, ResourceFileEntry> EntriesMap;
Common::Array<BlbArchive*> _archives;
EntriesMap _entries;
Common::HashMap<uint32, ResourceData*> _data;
Common::Array<Resource*> _resources;
};
} // End of namespace Neverhood
#endif /* NEVERHOOD_RESOURCEMAN_H */
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