2 score-performer.cc -- implement Score_performer
4 source file of the GNU LilyPond music typesetter
6 (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
10 #include "score-performer.hh"
11 #include "input-translator.hh"
12 #include "midi-def.hh"
13 #include "audio-item.hh"
14 #include "audio-column.hh"
15 #include "audio-score.hh"
16 #include "midi-item.hh"
17 #include "midi-stream.hh"
18 #include "string-convert.hh"
22 #include "source-file.hh"
25 IMPLEMENT_IS_TYPE_B1(Score_performer,Performer_group_performer);
26 ADD_THIS_PERFORMER(Score_performer);
28 Score_performer::Score_performer()
33 Score_performer::~Score_performer()
38 Score_performer::ancestor_l( int l )
40 return Global_translator::ancestor_l( l );
44 Score_performer::depth_i() const
46 return Global_translator::depth_i();
50 Score_performer::finish()
52 Performer_group_performer::do_removal_processing();
55 Midi_stream output_stream( midi_l_->outfile_str_, midi_item_l_arr_.size() + 1, 384 );
56 *mlog << "MIDI output to " << midi_l_->outfile_str_ << " ..." << endl;
58 header( output_stream);
60 for (int i=0; i< midi_item_l_arr_.size(); i++) {
61 Midi_item * it_p = midi_item_l_arr_[i];
63 // if ( it_p->is_type_b( Midi_track::static_name()))
64 // ((Midi_track*)it_p )->number_i_ = track_i ++;
65 output_stream<< *it_p;
67 *output_stream.os_p_ << flush;
72 Score_performer::play( Audio_item* l )
74 l->audio_column_l_ = audio_column_l_;
75 audio_column_l_->add( l );
79 Score_performer::play( Midi_item* l )
81 midi_item_l_arr_.push( l );
85 Score_performer::get_mom() const
91 Score_performer::header(Midi_stream &output_stream)
93 Midi_track midi_track;
97 // perhaps multiple text events?
98 String str = String( "Creator: " ) + get_version_str() + "\n";
100 Midi_text creator( Midi_text::TEXT, str );
101 midi_track.add( Moment( 0 ), &creator );
103 str = "Automatically generated at ";
105 str = str.left_str( str.length_i() - 1 );
107 Midi_text generate( Midi_text::TEXT, str );
108 midi_track.add( Moment( 0 ), &generate );
110 str = "from musical definition: ";
112 str += score_l_->location_str();
113 Midi_text from( Midi_text::TEXT, str );
114 midi_track.add( Moment( 0 ), &from );
116 Midi_text track_name( Midi_text::TRACK_NAME, "Track "
117 + String_convert::i2dec_str( 0, 0, '0' ) );
118 midi_track.add( Moment( 0 ), &track_name );
120 Midi_tempo tempo ( get_tempo_i() );
121 midi_track.add( Moment(0), &tempo);
123 output_stream << midi_track;
127 Score_performer::prepare( Moment m )
130 audio_column_l_ = new Audio_column( m );
132 score_l_->audio_score_p_->add( audio_column_l_ );
136 Score_performer::process()
139 prev_mom_ = now_mom_;
143 Score_performer::set_score(Score* score_l )
145 Global_translator::set_score( score_l );
146 midi_l_ = score_l->midi_p_;
150 Score_performer::start()
154 Performer_group_performer::set_track( track_i );
157 if ( midi_l_->outfile_str_ == "" )
158 midi_l_->outfile_str_ = default_out_fn + ".midi";
163 Score_performer::get_tempo_i()const
165 return midi_l_->get_tempo_i(Moment( 1, 4 ));