ncgr.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_NCGR_H
#define GRAPHICS_IMAGES_NCGR_H

#include <vector>

#include "src/common/scopedptr.h"

#include "src/aurora/nitrofile.h"

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

namespace Graphics {

class NCGR : public ImageDecoder, public Aurora::NitroFile {
public:
    NCGR(Common::SeekableReadStream &ncgr, Common::SeekableReadStream &nclr);
    NCGR(const std::vector<Common::SeekableReadStream *> &ncgrs, uint32 width, uint32 height,
         Common::SeekableReadStream &nclr);
    ~NCGR();

private:
    struct NCGRFile {
        Common::SeekableSubReadStreamEndian *ncgr;
        Common::SeekableReadStream *image;

        uint32 offsetCHAR;

        uint32 width;  
        uint32 height; 
        uint8  depth;  

        uint32 offsetX; 
        uint32 offsetY; 

        NCGRFile();
        ~NCGRFile();
    };

    struct ReadContext {
        uint32 width;  
        uint32 height; 

        Common::ScopedArray<const byte> pal;

        std::vector<NCGRFile> ncgrs;
    };


    void load(const std::vector<Common::SeekableReadStream *> &ncgrs, uint32 width, uint32 height,
              Common::SeekableReadStream &nclr);

    void load      (NCGRFile &ctx);
    void readHeader(NCGRFile &ctx);
    void readChar  (NCGRFile &ctx);

    void calculateGrid(ReadContext &ctx, uint32 &imageWidth, uint32 &imageHeight);
    void draw(ReadContext &ctx);
};

} // End of namespace Graphics

#endif // GRAPHICS_IMAGES_NCGR_H