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::add_column (Audio_column* p)
35 p->performance_l_ = this;
39 Performance::~Performance()
41 delete audio_elem_p_list_;
45 Performance::output (Midi_stream& midi_stream)
47 int tracks_i = audio_staff_l_arr_.size() + 1;
50 int clocks_per_4_i = 384;
52 midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
53 output_header_track (midi_stream);
55 for (int i =0; i < audio_staff_l_arr_.size (); i++)
57 Audio_staff *s = audio_staff_l_arr_[i];
59 Aargh, let's hear it for the MIDI standard.
60 MIDI players tend to ignore instrument settings on
61 channel 10, the percussion channel by default.
65 s->output (midi_stream, n++);
70 Performance::output_header_track (Midi_stream& midi_stream)
72 Midi_track midi_track;
74 // perhaps multiple text events?
75 String str = String (_("Creator: "));
76 if (no_timestamps_global_b)
77 str += gnu_lilypond_str ();
79 str += gnu_lilypond_version_str();
82 Midi_text creator (Midi_text::TEXT, str);
83 midi_track.add (Moment (0), &creator);
85 str = _("Automatically generated");
86 if (no_timestamps_global_b)
93 str = str.left_str (str.length_i() - 1);
95 Midi_text generate (Midi_text::TEXT, str);
96 midi_track.add (Moment (0), &generate);
98 str = _f ("from musical definition: %s", origin_str_);
100 Midi_text from (Midi_text::TEXT, str);
101 midi_track.add (Moment (0), &from);
103 Midi_text track_name (Midi_text::TRACK_NAME, "Track "
104 + String_convert::i2dec_str (0, 0, '0'));
105 midi_track.add (Moment (0), &track_name);
107 Midi_tempo tempo (midi_l_->get_tempo_i (Moment (1, 4)));
108 midi_track.add (Moment (0), &tempo);
110 midi_stream << midi_track;
114 Performance::add_staff (Audio_staff* l)
116 audio_staff_l_arr_.push (l);
120 Performance::add_element (Audio_element *p)
122 audio_elem_p_list_ = new Killing_cons<Audio_element> (p, audio_elem_p_list_);
126 Performance::print() const
129 DOUT << "Performance { ";
131 for (Cons<Audio_element>* i =audio_elem_p_list_; i; i = i->next_)
138 Performance::process()
142 String out = midi_l_->get_default_output ();
146 out = default_outname_base_global;
149 int def = midi_l_->get_next_default_count ();
152 out += "-" + to_str (def);
158 Midi_stream midi_stream (out);
159 *mlog << _f ("MIDI output to %s...", out) << endl;
160 target_str_global_array.push (out);
162 output (midi_stream);