cc_archive.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 MM_SHARED_XEEN_CC_ARCHIVE_H
#define MM_SHARED_XEEN_CC_ARCHIVE_H

#include "common/archive.h"
#include "common/stream.h"

namespace MM {
namespace Shared {
namespace Xeen {

struct CCEntry {
    uint16 _id;
    int _offset;
    uint16 _size;
    int _writeOffset;

    CCEntry() : _id(0), _offset(0), _size(0), _writeOffset(0) {
    }
    CCEntry(uint16 id, uint32 offset, uint32 size)
        : _id(id), _offset(offset), _size(size) {
    }
};

class BaseCCArchive : public Common::Archive {
protected:
    Common::Array<CCEntry> _index;

    void loadIndex(Common::SeekableReadStream &stream);

    void saveIndex(Common::WriteStream &stream);

    virtual bool getHeaderEntry(const Common::Path &resourceName, CCEntry &ccEntry) const;

    virtual bool getHeaderEntry(uint16 id, CCEntry &ccEntry) const;
public:
    static uint16 convertNameToId(const Common::Path &resourceName);
public:
    BaseCCArchive() {
    }

    // Archive implementation
    bool hasFile(const Common::Path &path) const override;
    int listMembers(Common::ArchiveMemberList &list) const override;
    const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
};

class CCArchive : public BaseCCArchive {
private:
    Common::Path _filename;
    Common::String _prefix;
    bool _encoded;
protected:
    bool getHeaderEntry(const Common::Path &resourceName, CCEntry &ccEntry) const override;
public:
    CCArchive(const Common::Path &filename, bool encoded);
    CCArchive(const Common::Path &filename, const Common::String &prefix, bool encoded);
    ~CCArchive() override;

    // Archive implementation
    Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
};

} // namespace Xeen
} // namespace Shared
} // namespace MM

#endif