decfile.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/>.
 *
 *
 * This file is dual-licensed.
 * In addition to the GPLv3 license mentioned above, this code is also
 * licensed under LGPL 2.1. See LICENSES/COPYING.LGPL file for the
 * full text of the license.
 *
 */

#ifndef GOB_DECFILE_H
#define GOB_DECFILE_H

#include "common/system.h"

namespace Common {
    class String;
    class SeekableReadStreamEndian;
}

namespace Gob {

class GobEngine;
class Surface;
class CMPFile;

class DECFile {
public:
    DECFile(GobEngine *vm, const Common::String &fileName,
            uint16 width, uint16 height, uint8 bpp = 1);
    ~DECFile();

    void draw(Surface &dest) const;

    void drawBackdrop(Surface &dest) const;

    void drawLayer(Surface &dest, uint16 layer, uint16 part,
                   uint16 x, uint16 y, int32 transp = -1) const;

private:
    struct Part {
        uint8 layer;
        uint8 part;

        uint16 x;
        uint16 y;
        bool transp;
    };

    typedef Common::Array<CMPFile *> LayerArray;
    typedef Common::Array<Part>      PartArray;

    GobEngine *_vm;

    uint16 _width;
    uint16 _height;
    uint8  _bpp;

    byte _hasPadding;

    CMPFile *_backdrop;

    LayerArray _layers;
    PartArray  _parts;


    void load(Common::SeekableReadStreamEndian &dec, const Common::String &fileName);

    void loadBackdrop(Common::SeekableReadStreamEndian &dec);

    CMPFile *loadLayer(Common::SeekableReadStreamEndian &dec);

    void loadParts(Common::SeekableReadStreamEndian &dec);
    void loadPart(Part &part, Common::SeekableReadStreamEndian &dec);
};

} // End of namespace Gob

#endif // GOB_DECFILE_H