2 performance.cc -- implement Performance
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
12 #include "string-convert.hh"
14 #include "midi-def.hh"
15 #include "midi-item.hh"
16 #include "midi-stream.hh"
17 #include "audio-column.hh"
18 #include "audio-staff.hh"
19 #include "performance.hh"
21 #include "file-results.hh"
22 #include "lily-version.hh"
24 #include "killing-cons.tcc"
26 Performance::Performance ()
29 audio_elem_p_list_ = 0;
33 Performance::~Performance()
35 delete audio_elem_p_list_;
39 Performance::output (Midi_stream& midi_stream)
41 int tracks_i = audio_staff_l_arr_.size() + 1;
44 int clocks_per_4_i = 384;
46 midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
47 output_header_track (midi_stream);
49 for (int i =0; i < audio_staff_l_arr_.size (); i++)
51 Audio_staff *s = audio_staff_l_arr_[i];
54 Aargh, let's hear it for the MIDI standard.
55 MIDI players tend to ignore instrument settings on
56 channel 10, the percussion channel by default.
60 s->output (midi_stream, channel++);
65 Performance::output_header_track (Midi_stream& midi_stream)
67 Midi_track midi_track;
69 // perhaps multiple text events?
70 String str = String (_("Creator: "));
71 if (no_timestamps_global_b)
72 str += gnu_lilypond_str ();
74 str += gnu_lilypond_version_str();
77 Midi_text creator (Midi_text::TEXT, str);
78 midi_track.add (Moment (0), &creator);
80 str = _("Automatically generated");
81 if (no_timestamps_global_b)
88 str = str.left_str (str.length_i() - 1);
90 Midi_text generate (Midi_text::TEXT, str);
91 midi_track.add (Moment (0), &generate);
93 str = _f ("from musical definition: %s", origin_str_);
95 Midi_text from (Midi_text::TEXT, str);
96 midi_track.add (Moment (0), &from);
98 Midi_text track_name (Midi_text::TRACK_NAME, "Track "
99 + String_convert::i2dec_str (0, 0, '0'));
100 midi_track.add (Moment (0), &track_name);
102 Midi_tempo tempo (midi_l_->get_tempo_i (Moment (1, 4)));
103 midi_track.add (Moment (0), &tempo);
105 midi_stream << midi_track;
109 Performance::add_element (Audio_element *p)
111 if (Audio_staff*s=dynamic_cast<Audio_staff *> (p))
113 audio_staff_l_arr_.push (s);
115 else if (Audio_column *c = dynamic_cast<Audio_column*>(p))
117 c->performance_l_ = this;
119 audio_elem_p_list_ = new Killing_cons<Audio_element> (p, audio_elem_p_list_);
123 Performance::print() const
126 DOUT << "Performance { ";
128 for (Cons<Audio_element>* i =audio_elem_p_list_; i; i = i->next_)
135 Performance::process()
139 String out = midi_l_->get_default_output ();
143 out = default_outname_base_global;
146 int def = midi_l_->get_next_default_count ();
149 out += "-" + to_str (def);
155 Midi_stream midi_stream (out);
156 *mlog << _f ("MIDI output to %s...", out) << endl;
157 target_str_global_array.push (out);
159 output (midi_stream);