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s3m.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
 *
 * s3m.h - AdLib S3M Player by Simon Peter <dn.tlp@gmx.net>
 */

#ifndef H_ADPLUG_S3M
#define H_ADPLUG_S3M

#include "player.h"

class Cs3mPlayer: public CPlayer
{
public:
  static CPlayer *factory(Copl *newopl);

      Cs3mPlayer(Copl *newopl);

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

      std::string gettype();
      std::string gettitle()
      { return std::string(header.name); };

      unsigned int getpatterns()
      { return header.patnum; };
      unsigned int getpattern()
      { return orders[ord]; };
      unsigned int getorders()
      { return (header.ordnum-1); };
      unsigned int getorder()
      { return ord; };
      unsigned int getrow()
      { return crow; };
      unsigned int getspeed()
      { return speed; };
      unsigned int getinstruments()
      { return header.insnum; };
      std::string getinstrument(unsigned int n)
      { return std::string(inst[n].name); };

protected:
      struct s3mheader {
            char name[28];                      // song name
            unsigned char kennung,typ,dummy[2];
            unsigned short ordnum,insnum,patnum,flags,cwtv,ffi;
            char scrm[4];
            unsigned char gv,is,it,mv,uc,dp,dummy2[8];
            unsigned short special;
            unsigned char chanset[32];
      };

      struct s3minst {
            unsigned char type;
            char filename[15];
            unsigned char d00,d01,d02,d03,d04,d05,d06,d07,d08,d09,d0a,d0b,volume,dsk,dummy[2];
            unsigned long c2spd;
            char dummy2[12], name[28],scri[4];
      } inst[99];

      struct {
            unsigned char note,oct,instrument,volume,command,info;
      } pattern[99][64][32];

      struct {
            unsigned short freq,nextfreq;
            unsigned char oct,vol,inst,fx,info,dualinfo,key,nextoct,trigger,note;
      } channel[9];

      s3mheader header;
      unsigned char orders[256];
      unsigned char crow,ord,speed,tempo,del,songend,loopstart,loopcnt;

private:
      static const char chnresolv[];
      static const unsigned short notetable[12];
      static const unsigned char vibratotab[32];

      void load_header(binistream *f, s3mheader *h);
      void setvolume(unsigned char chan);
      void setfreq(unsigned char chan);
      void playnote(unsigned char chan);
      void slide_down(unsigned char chan, unsigned char amount);
      void slide_up(unsigned char chan, unsigned char amount);
      void vibrato(unsigned char chan, unsigned char info);
      void tone_portamento(unsigned char chan, unsigned char info);
};

#endif

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