cbgt.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_IMAGES_CBGT_H
#define GRAPHICS_IMAGES_CBGT_H

#include <vector>

#include "src/common/ptrvector.h"

#include "src/graphics/images/decoder.h"

namespace Common {
    class SeekableReadStream;
}

namespace Graphics {

class CBGT : public ImageDecoder {
public:
    CBGT(Common::SeekableReadStream &cbgt, Common::SeekableReadStream &pal,
         Common::SeekableReadStream &twoda);
    ~CBGT();

private:
    typedef Common::PtrVector<byte, Common::DeallocatorArray> Palettes;
    typedef std::vector<size_t> PaletteIndices;
    typedef Common::PtrVector<Common::SeekableReadStream> Cells;

    struct ReadContext {
        Common::SeekableReadStream *cbgt;
        Common::SeekableReadStream *pal;
        Common::SeekableReadStream *twoda;

        Palettes palettes;
        PaletteIndices paletteIndices;
        Cells cells;

        uint32 width;
        uint32 height;

        size_t maxPaletteIndex;

        ReadContext(Common::SeekableReadStream &c,
                    Common::SeekableReadStream &p,
                    Common::SeekableReadStream &t);
    };

    void load(ReadContext &ctx);

    void readPalettes(ReadContext &ctx);
    void readPaletteIndices(ReadContext &ctx);
    void readCells(ReadContext &ctx);

    void checkConsistency(ReadContext &ctx);

    void createImage(uint32 width, uint32 height);
    void drawImage(ReadContext &ctx);
};

} // End of namespace Graphics

#endif // GRAPHICS_IMAGES_CBGT_H