dtm.h

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/*
  Adplug - Replayer for many OPL2/OPL3 audio file formats.
  Copyright (C) 1999 - 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  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);
};