gamarchive.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 ILLUSIONS_GAMARCHIVE_H
#define ILLUSIONS_GAMARCHIVE_H

#include "illusions/illusions.h"
#include "common/file.h"

namespace Illusions {

struct GamFileEntry {
    uint32 _id;
    uint32 _fileOffset;
    uint32 _fileSize;
};

struct GamGroupEntry {
    uint32 _id;
    uint _fileCount;
    GamFileEntry *_files;
    GamGroupEntry() : _fileCount(0), _files(0) {
    }
    ~GamGroupEntry() {
        delete[] _files;
    }
};

class GamArchive {
public:
    GamArchive(const char *filename);
    ~GamArchive();
    byte *readResource(uint32 sceneId, uint32 resId, uint32 &dataSize);
protected:
    Common::File *_fd;
    uint _groupCount;
    GamGroupEntry *_groups;
    void loadDictionary();
    const GamGroupEntry *getGroupEntry(uint32 sceneId);
    const GamFileEntry *getFileEntry(const GamGroupEntry *groupEntry, uint32 resId);
    const GamFileEntry *getGroupFileEntry(uint32 sceneId, uint32 resId);
};

} // End of namespace Illusions

#endif // ILLUSIONS_GAMARCHIVE_H