2 score-performer.cc -- implement Score_performer
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2005 Jan Nieuwenhuizen <janneke@gnu.org>
9 #include "score-performer.hh"
11 #include "audio-column.hh"
12 #include "audio-item.hh"
13 #include "performance.hh"
14 #include "midi-stream.hh"
15 #include "string-convert.hh"
17 #include "context-def.hh"
18 #include "output-def.hh"
21 ADD_TRANSLATOR_GROUP (Score_performer,
28 Score_performer::Score_performer ()
33 Score_performer::~Score_performer ()
38 Score_performer::play_element (Audio_element *p)
40 if (Audio_item *i = dynamic_cast<Audio_item *> (p))
41 audio_column_->add_audio_item (i);
42 performance_->add_element (p);
46 Score_performer::announce_element (Audio_element_info info)
48 announce_infos_.push (info);
52 Score_performer::prepare (Moment m)
54 audio_column_ = new Audio_column (m);
55 play_element (audio_column_);
56 precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
60 Score_performer::finish ()
62 recurse_over_translators (context (),
63 &Translator::finalize,
64 &Translator_group::finalize,
69 Score_performer::one_time_step ()
71 precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
73 precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
77 Score_performer::get_tempo () const
79 return ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
83 Score_performer::get_output ()
85 Music_output *o = performance_;
87 return o->self_scm ();
91 Score_performer::derived_mark () const
94 scm_gc_mark (performance_->self_scm ());
96 Score_translator::derived_mark ();
97 Performer_group::derived_mark ();
101 Score_performer::initialize ()
103 performance_ = new Performance;
104 performance_->unprotect ();
105 performance_->midi_ = context ()->get_output_def ();
107 Translator_group::initialize ();