flex_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 ULTIMA8_FILESYS_FLEXFILE_H
#define ULTIMA8_FILESYS_FLEXFILE_H

namespace Ultima {
namespace Ultima8 {

class FlexFile {
public:
    explicit FlexFile(Common::SeekableReadStream *rs);
    ~FlexFile();

    bool isValid() const {
        return _valid;
    }

    bool exists(uint32 index) {
        return getSize(index) > 0;
    }

    Common::SeekableReadStream *getDataSource(uint32 index, bool is_text = false);

    uint8 *getObject(uint32 index, uint32 *size = nullptr);

    uint32 getSize(uint32 index) const;

    uint32 getCount() const {
        return _entries.size();
    }

    static bool isFlexFile(Common::SeekableReadStream *rs);

protected:
    Common::SeekableReadStream *_rs;
    bool _valid;

    struct FileEntry {
        uint32 _offset;
        uint32 _size;
        FileEntry() : _offset(0), _size(0) {}
    };

    Common::Array<FileEntry> _entries;

private:
    bool readMetadata();
};

} // End of namespace Ultima8
} // End of namespace Ultima

#endif