blbarchive.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef NEVERHOOD_BLBARCHIVE_H
#define NEVERHOOD_BLBARCHIVE_H

#include "common/array.h"
#include "common/file.h"
#include "common/mutex.h"
#include "common/stream.h"
#include "common/substream.h"
#include "neverhood/neverhood.h"

namespace Neverhood {

struct BlbHeader {
    uint32 id1;
    uint16 id2;
    uint16 extDataSize;
    int32 fileSize;
    uint32 fileCount;
};

struct BlbArchiveEntry {
    uint32 fileHash;
    byte type;
    byte comprType;
    byte *extData;
    uint32 timeStamp;
    uint32 offset;
    uint32 diskSize;
    uint32 size;
};

class BlbArchive {
public:
    BlbArchive();
    ~BlbArchive();
    bool open(const Common::Path &filename, bool isOptional);
    void load(uint index, byte *buffer, uint32 size);
    void load(BlbArchiveEntry *entry, byte *buffer, uint32 size);
    byte *getEntryExtData(uint index);
    byte *getEntryExtData(BlbArchiveEntry *entry);
    uint32 getSize(uint index) { return _entries[index].size; }
    BlbArchiveEntry *getEntry(uint index) { return &_entries[index]; }
    uint getCount() { return _entries.size(); }
    Common::SeekableReadStream *createStream(uint index);
    Common::SeekableReadStream *createStream(BlbArchiveEntry *entry);
private:
    Common::File _fd;
    Common::Mutex _mutex;
    Common::Array<BlbArchiveEntry> _entries;
    byte *_extData;
};

} // End of namespace Neverhood

#endif /* NEVERHOOD_BLBARCHIVE_H */