2 note-performer.cc -- implement Note_performer
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2004 Jan Nieuwenhuizen <janneke@gnu.org>
9 #include "performer.hh"
10 #include "audio-item.hh"
11 #include "audio-column.hh"
12 #include "global-context.hh"
16 Convert evs to audio notes.
18 class Note_performer : public Performer {
20 TRANSLATOR_DECLARATIONS (Note_performer);
23 virtual bool try_music (Music *ev) ;
25 virtual void stop_translation_timestep ();
26 virtual void create_audio_elements ();
29 Link_array<Music> note_evs_;
30 Link_array<Audio_note> notes_;
31 Link_array<Audio_note> delayeds_;
35 Note_performer::create_audio_elements ()
37 if (note_evs_.size ())
41 SCM prop = get_property ("instrumentTransposition");
42 if (unsmob_pitch (prop))
43 transposing = unsmob_pitch (prop)->semitone_pitch ();
45 while (note_evs_.size ())
47 Music* n = note_evs_.pop ();
48 SCM pit = n->get_property ("pitch");
50 if (Pitch * pitp = unsmob_pitch (pit))
52 Audio_note* p = new Audio_note (*pitp, n->get_length (), - transposing);
53 Audio_element_info info (p, n);
54 announce_element (info);
64 Note_performer::stop_translation_timestep ()
66 // why don't grace notes show up here?
67 // --> grace notes effectively do not get delayed
68 Global_context * global = get_global_context ();
69 for (int i=0; i < notes_.size (); i++)
71 Audio_note* n = notes_[i];
72 Moment m= n->delayed_until_mom_;
75 global->add_moment_to_process (m);
83 Moment now = now_mom ();
84 for (int i=0; i < notes_.size (); i++)
86 play_element (notes_[i]);
90 for (int i=0; i < delayeds_.size (); i++)
92 Audio_note* n = delayeds_[i];
93 if (n->delayed_until_mom_ <= now)
104 Note_performer::try_music (Music* ev)
106 if (ev->is_mus_type ("note-event"))
111 else if (ev->is_mus_type ("busy-playing-event"))
112 return note_evs_.size ();
117 ENTER_DESCRIPTION (Note_performer,"","",
118 "note-event busy-playing-event","","","");
120 Note_performer::Note_performer ()