disk.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 LURE_DISK_H
#define LURE_DISK_H


#include "common/scummsys.h"
#include "common/str.h"
#include "lure/memory.h"
#include "lure/res_struct.h"

namespace Common {
class File;
}

namespace Lure {

#define NUM_ENTRIES_IN_HEADER 0xBF
#define HEADER_IDENT_STRING "heywow"
#define SUPPORT_IDENT_STRING "lure"
#define HEADER_ENTRY_UNUSED_ID 0xffff

class Disk {
private:
    uint8 _fileNum;
    uint32 _dataOffset;
    Common::File *_fileHandle;
    FileEntry _entries[NUM_ENTRIES_IN_HEADER];

    uint8 indexOf(uint16 id, bool suppressError = false);
public:
    Disk();
    ~Disk();
    static Disk &getReference();

    void openFile(uint8 fileNum);
    uint32 getEntrySize(uint16 id);
    MemoryBlock *getEntry(uint16 id);
    bool exists(uint16 id);

    uint8 numEntries();
    FileEntry *getIndex(uint8 entryIndex);
};

} // End of namespace Lure

#endif