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dtm.h

/*
  Adplug - Replayer for many OPL2/OPL3 audio file formats.
  Copyright (C) 1999 - 2003 Simon Peter, <dn.tlp@gmx.net>, et al.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  dtm.h - DTM loader by Riven the Mage <riven@ok.ru>
*/

#include "protrack.h"

class CdtmLoader: public CmodPlayer
{
      public:
            static CPlayer *factory(Copl *newopl);

            CdtmLoader(Copl *newopl) : CmodPlayer(newopl) { };

            bool  load(const std::string &filename, const CFileProvider &fp);
            void  rewind(int subsong);
            float getrefresh();

            std::string     gettype();
            std::string     gettitle();
            std::string     getauthor();
            std::string     getdesc();
            std::string     getinstrument(unsigned int n);
            unsigned int    getinstruments();

      private:

            struct dtm_header
            {
                  char            id[12];
                  unsigned char   version;
                  char            title[20];
                  char            author[20];
                  unsigned char   numpat;
                  unsigned char   numinst;
            } header;

            char desc[80*16];

            struct dtm_instrument
            {
                  char            name[13];
                  unsigned char   data[12];
            } instruments[128];

            struct dtm_event
            {
                  unsigned char     byte0;
                  unsigned char     byte1;
            };

            long unpack_pattern(unsigned char *ibuf, long ilen, unsigned char *obuf, long olen);
};

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