/*
  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(VFSFile *fd, 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);
};
