graphics.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 SUPERNOVA_GRAPHICS_H
#define SUPERNOVA_GRAPHICS_H

#include "common/scummsys.h"
#include "image/image_decoder.h"
#include "supernova/supernova.h"

namespace Common {
class SeekableReadStream;
}

namespace Graphics {
struct Surface;
}

namespace Supernova {
class SupernovaEngine;

class MSNImage : public Image::ImageDecoder {
public:
    MSNImage(SupernovaEngine *vm);
    ~MSNImage() override;

    void destroy() override;
    bool loadStream(Common::SeekableReadStream &stream) override;
    const Graphics::Surface *getSurface() const override { return _sectionSurfaces[0]; }
    const byte *getPalette() const override { return _palette; }

    bool init(int filenumber);

    static const int kMaxSections = 50;
    static const int kMaxClickFields = 80;
    static const uint32 kInvalidAddress = 0x00FFFFFF;

    int _filenumber;
    int _pitch;
    int _numSections;
    int _numClickFields;
    Common::Array<Graphics::Surface *> _sectionSurfaces;
    byte *_palette;
    byte *_encodedImage;

    struct Section {
        int16  x1;
        int16  x2;
        byte   y1;
        byte   y2;
        byte   next;
        uint16 addressLow;
        byte   addressHigh;
    } _section[kMaxSections];

    struct ClickField {
        int16  x1;
        int16  x2;
        byte   y1;
        byte   y2;
        byte   next;
    } _clickField[kMaxClickFields];

private:
    SupernovaEngine *_vm;
    bool loadFromEngineDataFile();
    bool loadPbmFromEngineDataFile();
    bool loadSections();
};

}
#endif