2 performance.cc -- implement Performance
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 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-item.hh"
19 #include "audio-staff.hh"
20 #include "performance.hh"
22 #include "file-results.hh"
23 #include "lily-version.hh"
25 #include "killing-cons.tcc"
27 Performance::Performance ()
30 audio_elem_p_list_ = 0;
34 Performance::~Performance()
36 delete audio_elem_p_list_;
40 Performance::output (Midi_stream& midi_stream)
42 int tracks_i = audio_staff_l_arr_.size() + 1;
45 int clocks_per_4_i = 384;
47 midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
48 output_header_track (midi_stream);
49 progress_indication ("\n");
50 progress_indication (_ ("Track ... "));
52 for (int i =0; i < audio_staff_l_arr_.size (); i++)
54 Audio_staff *s = audio_staff_l_arr_[i];
55 progress_indication ("[" + to_str (i)) ;
58 Aargh, let's hear it for the MIDI standard.
59 MIDI players tend to ignore instrument settings on
60 channel 10, the percussion channel by default.
64 s->output (midi_stream, channel++);
65 progress_indication ("]");
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();
83 This seems silly, but in fact the audio elements should
84 be generated elsewhere: not midi-specific.
86 Audio_text creator_a (Audio_text::TEXT, str);
87 Midi_text creator (&creator_a);
88 midi_track.add (Moment (0), &creator);
90 str = _("Automatically generated");
91 if (no_timestamps_global_b)
98 str = str.left_str (str.length_i() - 1);
100 Audio_text generate_a (Audio_text::TEXT, str);
101 Midi_text generate (&generate_a);
102 midi_track.add (Moment (0), &generate);
104 str = _f ("from musical definition: %s", origin_str_);
106 Audio_text from_a (Audio_text::TEXT, str);
107 Midi_text from (&from_a);
108 midi_track.add (Moment (0), &from);
110 Audio_text track_name_a (Audio_text::TRACK_NAME, "Track "
111 + String_convert::i2dec_str (0, 0, '0'));
112 Midi_text track_name (&track_name_a);
114 midi_track.add (Moment (0), &track_name);
116 // Some sequencers read track 0 last.
117 // Audio_tempo tempo_a (midi_l_->get_tempo_i (Moment (1, 4)));
118 // Midi_tempo tempo (&tempo_a);
119 // midi_track.add (Moment (0), &tempo);
121 midi_stream << midi_track;
125 Performance::add_element (Audio_element *p)
127 if (Audio_staff*s=dynamic_cast<Audio_staff *> (p))
129 audio_staff_l_arr_.push (s);
131 else if (Audio_column *c = dynamic_cast<Audio_column*>(p))
133 c->performance_l_ = this;
135 audio_elem_p_list_ = new Killing_cons<Audio_element> (p, audio_elem_p_list_);
139 Performance::print() const
142 DEBUG_OUT << "Performance { ";
143 DEBUG_OUT << "Items: ";
144 for (Cons<Audio_element>* i =audio_elem_p_list_; i; i = i->next_)
151 Performance::process()
155 String out = midi_l_->get_default_output ();
159 out = default_outname_base_global;
162 int def = midi_l_->get_next_default_count ();
165 out += "-" + to_str (def);
171 Midi_stream midi_stream (out);
172 progress_indication ( _f ("MIDI output to %s...", out));
173 target_str_global_array.push (out);
175 output (midi_stream);
176 progress_indication("\n");