2 // my-midi-parser.cc -- implement My_midi_parser
4 // copyright 1997 Jan Nieuwenhuizen <jan@digicash.com>
9 yyerror(char const* sz_l )
11 midi_parser_l_g->error( sz_l );
15 My_midi_parser* midi_parser_l_g = 0;
17 My_midi_parser::My_midi_parser( String filename_str )
19 midi_parser_l_g = this;
20 filename_str_ = filename_str;
21 midi_lexer_p_ = new My_midi_lexer( filename_str_ );
33 My_midi_parser::~My_midi_parser()
44 My_midi_parser::reset()
47 midi_key_p_ = new Midi_key( 0, 0 );
48 // useconds per 4: 250000 === 60 4 per minute
50 midi_tempo_p_ = new Midi_tempo( 1000000 );
52 midi_time_p_ = new Midi_time( 4, 2, 24, 8 );
60 for ( int i = 0; i < CHANNELS_i; i++ )
61 for ( int j = 0; j < PITCHES_i; j++ )
62 // running_i64_i64_a_[ i ][ j ] = -1;
63 running_i64_i64_a_[ i ][ j ] = 0;
67 My_midi_parser::add_score( Midi_score* midi_score_p )
69 assert( !midi_score_p_ );
70 midi_score_p_ = midi_score_p;
76 My_midi_parser::error( char const* sz_l )
78 midi_lexer_l_g->error( sz_l );
81 exit( fatal_error_i_ );
85 My_midi_parser::forward( int i )
93 return Moment( now_i64_, Duration::division_1_i_s );
97 My_midi_parser::note_begin( int channel_i, int pitch_i, int dyn_i )
99 // one pitch a channel at time!
100 // heu, what about { < c2 > < c4 d4 > }
101 // assert( running_i64_i64_a_[ channel_i ][ pitch_i ] == -1 );
102 running_i64_i64_a_[ channel_i ][ pitch_i ] = now_i64_;
106 My_midi_parser::note_end_midi_event_p( int channel_i, int pitch_i, int dyn_i )
108 I64 start_i64 = running_i64_i64_a_[ channel_i ][ pitch_i ];
110 // running_i64_i64_a_[ channel_i ][ pitch_i ] = -1;
111 // assert( start_i64 != -1 ); // did we start?
114 if ( Duration_convert::be_blonde_b_s )
115 dur = Duration_convert::ticks2_dur( (I64)now_i64_ - start_i64 );
117 dur = Duration_convert::ticks2standardised_dur( (I64)now_i64_ - start_i64 );
118 return new Midi_note( midi_key_p_->notename_str( pitch_i ), dur );
122 My_midi_parser::output_mudela( String filename_str )
124 assert( midi_score_p_ );
125 mtor << "\nProcessing..." << endl;
126 midi_score_p_->process();
127 return midi_score_p_->output_mudela( filename_str );
131 My_midi_parser::parse()
133 mtor << "\nParsing..." << flush;
138 My_midi_parser::set_division_4( int division_4_i )
140 division_1_i_ = division_4_i * 4;
141 Duration::division_1_i_s = division_1_i_;
142 if ( division_4_i < 0 )
143 warning( "seconds iso metrical time" , 0 );
147 My_midi_parser::set_key( int accidentals_i, int minor_i )
150 midi_key_p_ = new Midi_key( accidentals_i, minor_i );
154 My_midi_parser::set_tempo( int useconds_per_4_i )
156 delete midi_tempo_p_;
157 midi_tempo_p_ = new Midi_tempo( useconds_per_4_i );
161 My_midi_parser::set_time( int num_i, int den_i, int clocks_i, int count_32_i )
164 midi_time_p_ = new Midi_time( num_i, den_i, clocks_i, count_32_i );