lily/midi-output.cc

   1 /*
   2   midioutput.cc -- implement Midi_output
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>, Jan Nieuwenhuizen <jan@digicash.com>
   7 */
   8
   9 #if 0
  10 #include "time.h"
  11 #include "main.hh"
  12 #include "source.hh"
  13 #include "proto.hh"
  14 #include "plist.hh"
  15 #include "string.hh"
  16 #include "string-convert.hh"
  17 #include "debug.hh"
  18 #include "score.hh"
  19 #include "main.hh"
  20 #include "midi-stream.hh"
  21 #include "midi-def.hh"
  22 #include "midi-output.hh"
  23 #include "midi-walker.hh"
  24 #include "midi-item.hh"
  25 #include "staff-column.hh"
  26 #include "musical-request.hh"
  27 #include "p-score.hh"
  28
  29 Midi_output::Midi_output(Score* score_l, Midi_def* midi_l )
  30 {
  31     midi_l_ = midi_l;
  32     score_l_ = score_l;
  33
  34     Midi_stream midi_stream(midi_l->outfile_str_,
  35         // don-t forget: extra track 0 for tempo/copyright stuff...
  36         score_l_->staffs_.size() + 1,
  37         384 );
  38     midi_stream_l_ = &midi_stream;
  39
  40     header();
  41     staffs();
  42 }
  43
  44 void
  45 Midi_output::do_staff(Staff*st_l,int track_i)
  46 {
  47     Midi_track midi_track( track_i );
  48
  49     // set track name
  50     Midi_text track_name( Midi_text::TRACK_NAME, "Track " + String_convert::i2dec_str( track_i, 0, '0' ) );
  51     midi_track.add( Moment( 0 ), &track_name );
  52
  53     // set instrument :-)
  54     Midi_text instrument_name( Midi_text::INSTRUMENT_NAME, "piano" );
  55     midi_track.add( Moment( 0 ), &instrument_name );
  56
  57     Midi_tempo midi_tempo( midi_l_->get_tempo_i( Moment( 1, 4 ) ) );
  58     midi_track.add( Moment( 0 ), &midi_tempo );
  59
  60     for (Midi_walker w (st_l, &midi_track); w.ok(); w++)
  61         w.do_process_requests();
  62
  63     *midi_stream_l_  << midi_track;
  64 }
  65
  66 void
  67 Midi_output::header()
  68 {
  69     Midi_track midi_track( 0 );
  70
  71     time_t t = time( 0 );
  72
  73     // perhaps multiple text events?
  74     String str = String( "Creator: " ) + get_version_str() + "\n";
  75
  76     Midi_text creator( Midi_text::TEXT, str );
  77     midi_track.add( Moment( 0 ), &creator );
  78
  79     str = "Generated, at ";
  80     str += ctime( &t );
  81     str = str.left_str( str.length_i() - 1 );
  82     str += ",\n";
  83     Midi_text generate( Midi_text::TEXT, str );
  84     midi_track.add( Moment( 0 ), &generate );
  85
  86 #if 0 // TODO!
  87     Source_file* sourcefile_l = source_l_g->sourcefile_l( score_l_->defined_ch_C_ );
  88     if ( sourcefile_l ) {
  89         str += "from musical definition: "
  90             + sourcefile_l->file_line_no_str(score_l_->defined_ch_C_);
  91
  92     }
  93 #endif
  94     Midi_text from( Midi_text::TEXT, str );
  95     midi_track.add( Moment( 0 ), &from );
  96
  97     // set track name
  98     Midi_text track_name( Midi_text::TRACK_NAME, "Track " + String_convert::i2dec_str( 0, 0, '0' ) );
  99     midi_track.add( Moment( 0 ), &track_name );
 100
 101     // ugh, to please lily when reparsing mi2mu output.
 102     // lily currently barfs when no meter present.
 103     /* are you sure? init is to 4/4 HWN */
 104     Midi_time midi_time( 4, 4, 18 );
 105     midi_track.add( Moment( 0.0 ), &midi_time );
 106
 107     *midi_stream_l_  << midi_track;
 108 }
 109
 110 void
 111 Midi_output::staffs()
 112 {
 113     int track_i = 1;
 114     for (iter_top(score_l_->staffs_,i); i.ok(); i++)
 115         do_staff(i, track_i++);
 116 }
 117
 118 #endif