2 score-performer.cc -- implement Score_performer
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2004 Jan Nieuwenhuizen <janneke@gnu.org>
9 #include "score-performer.hh"
10 #include "midi-def.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"
21 ENTER_DESCRIPTION(Score_performer,
30 Score_performer::Score_performer ()
36 Score_performer::~Score_performer ()
41 Score_performer::play_element (Audio_element * p)
43 if (Audio_item * i=dynamic_cast<Audio_item *> (p))
45 audio_column_->add_audio_item (i);
47 performance_->add_element (p);
51 Score_performer::announce_element (Audio_element_info info)
53 announce_infos_.push (info);
57 Score_performer::prepare (Moment m)
59 audio_column_ = new Audio_column (m);
60 play_element (audio_column_);
61 recurse_down_translators (daddy_context_, &Translator::start_translation_timestep, UP);
66 Score_performer::one_time_step ()
68 recurse_down_translators (daddy_context_, &Performer::process_music, UP);
69 recurse_down_translators (daddy_context_, &Performer::do_announces, UP);
70 recurse_down_translators (daddy_context_, &Translator::stop_translation_timestep, UP);
74 Score_performer::get_tempo () const
76 return performance_->midi_->get_tempo (Moment (Rational (1, 4)));
81 Score_performer::get_output ()
83 Music_output * o = performance_;
89 Score_performer::initialize ()
91 performance_ = new Performance;
92 performance_->midi_ = dynamic_cast<Midi_def*> (get_output_def ());
94 Translator_group::initialize ();