file.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 GAMOS_FILE_H
#define GAMOS_FILE_H
 
#include "common/file.h"
 
namespace Gamos {
 
typedef Common::Array<byte> RawData;
 
struct GameFileDir {
    uint32 offset;
    byte id;
};
 
class GameFile : public Common::File {
public:
    GameFile();
    ~GameFile() override;
    bool open(const Common::Path &name) override;
 
    uint16 getDirCount() const {
        return _dirCount;
    }
 
    int16 findDirByID(uint id) const {
        for (uint i = 0; i < _directories.size(); ++i) {
            if (_directories[i].id == id)
                return i;
        }
 
        return -1;
    }
 
    bool seekDir(uint id);
 
    int32 readPackedInt();
 
    RawData *readCompressedData();
    bool readCompressedData(RawData *out);
 
    static void decompress(RawData const *in, RawData *out);
 
    void setVersion(int v) {
        _version = v;
    }
 
public:
 
    uint32 _lastReadSize = 0;
    uint32 _lastReadDecompressedSize = 0;
    uint32 _lastReadDataOffset = 0;
 
 
private:
    int32 _dirOffset = 0;
 
    byte _dirCount = 0;
    uint32 _dataOffset = 0;
 
    Common::Array<GameFileDir> _directories;
 
    int _version = 0x18;
 
    //bool _error;
};
 
 
 
} // namespace Gamos
 
#endif // GAMOS_FILE_H