/*
- score-performer.cc -- implement Score_performer
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1996--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1996--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "score-performer.hh"
#include "audio-column.hh"
#include "audio-item.hh"
+#include "context-def.hh"
+#include "dispatcher.hh"
+#include "global-context.hh"
#include "performance.hh"
#include "midi-stream.hh"
+#include "output-def.hh"
#include "string-convert.hh"
#include "warn.hh"
-#include "context-def.hh"
-#include "output-def.hh"
-#include "context.hh"
+#include "audio-staff.hh"
ADD_TRANSLATOR_GROUP (Score_performer,
- /* doc */ "",
- /* create */ "",
- /* accept */ "",
- /* read */ "",
- /* write */ "");
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
Score_performer::Score_performer ()
{
performance_ = 0;
+ skipping_ = false;
+ audio_column_ = 0;
}
Score_performer::~Score_performer ()
}
void
-Score_performer::play_element (Audio_element *p)
+Score_performer::announce_element (Audio_element_info info)
{
- if (Audio_item *i = dynamic_cast<Audio_item *> (p))
- audio_column_->add_audio_item (i);
- performance_->add_element (p);
+ announce_infos_.push_back (info);
+ if (Audio_staff *s = dynamic_cast<Audio_staff *> (info.elem_))
+ {
+ performance_->audio_staffs_.push_back (s);
+ }
+
+ performance_->add_element (info.elem_);
}
void
-Score_performer::announce_element (Audio_element_info info)
+Score_performer::acknowledge_audio_elements ()
{
- announce_infos_.push (info);
+ for (vsize i = 0; i < announce_infos_.size (); i++)
+ {
+ if (Audio_item *ai = dynamic_cast<Audio_item *> (announce_infos_[i].elem_))
+ audio_column_->add_audio_item (ai);
+ }
+ Performer_group::acknowledge_audio_elements ();
}
void
-Score_performer::prepare (Moment m)
+Score_performer::connect_to_context (Context *c)
{
- audio_column_ = new Audio_column (m);
- play_element (audio_column_);
- precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
+ Performer_group::connect_to_context (c);
+
+ Dispatcher *d = c->get_global_context ()->event_source ();
+ d->add_listener (GET_LISTENER (Score_performer, one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->add_listener (GET_LISTENER (Score_performer, prepare), ly_symbol2scm ("Prepare"));
+ d->add_listener (GET_LISTENER (Score_performer, finish), ly_symbol2scm ("Finish"));
}
void
-Score_performer::finish ()
+Score_performer::disconnect_from_context ()
{
- recurse_over_translators (context (),
- &Translator::finalize,
- &Translator_group::finalize,
- UP);
+ Dispatcher *d = context ()->get_global_context ()->event_source ();
+ d->remove_listener (GET_LISTENER (Score_performer, one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->remove_listener (GET_LISTENER (Score_performer, prepare), ly_symbol2scm ("Prepare"));
+ d->remove_listener (GET_LISTENER (Score_performer, finish), ly_symbol2scm ("Finish"));
+
+ Performer_group::disconnect_from_context ();
}
void
-Score_performer::one_time_step ()
+Score_performer::prepare (SCM sev)
{
- precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
- do_announces ();
- precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
+ Stream_event *ev = unsmob<Stream_event> (sev);
+ SCM sm = ev->get_property ("moment");
+ Moment *m = unsmob<Moment> (sm);
+ audio_column_ = new Audio_column (*m);
+ announce_element (Audio_element_info (audio_column_, 0));
+ precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
}
-int
-Score_performer::get_tempo () const
+void
+Score_performer::finish (SCM)
{
- return ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
+ SCM channel_mapping = context ()->get_property ("midiChannelMapping");
+ bool use_ports = scm_is_eq (channel_mapping, ly_symbol2scm ("voice"));
+ performance_->ports_ = use_ports;
+ recurse_over_translators
+ (context (),
+ Callback0_wrapper::make_smob<Translator, &Translator::finalize> (),
+ Callback0_wrapper::make_smob<Translator_group, &Translator_group::finalize> (),
+ UP);
}
-SCM
-Score_performer::get_output ()
+void
+Score_performer::one_time_step (SCM)
{
- Music_output *o = performance_;
- performance_ = 0;
- return o->self_scm ();
+ // audio_column_ can be 0 when prepare has not been called. The
+ // condition is triggered when Simple_music_iterator implicitly
+ // creates a Score context, like when writing
+ //
+ // \score { { | c4 c c c } \midi { } }
+ //
+ // The same situation happens with the Score_engraver group, but it
+ // would appear not to suffer any bad side effects.
+
+ if (!audio_column_)
+ audio_column_ = new Audio_column (context ()->now_mom ());
+ if (to_boolean (context ()->get_property ("skipTypesetting")))
+ {
+ if (!skipping_)
+ {
+ skip_start_mom_ = audio_column_->when ();
+ skipping_ = true;
+ }
+ }
+ else
+ {
+ if (skipping_)
+ {
+ offset_mom_ -= audio_column_->when () - skip_start_mom_;
+ skipping_ = false;
+ }
+
+ audio_column_->offset_when (offset_mom_);
+ precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
+ do_announces ();
+ }
+
+ precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
}
void
if (performance_)
scm_gc_mark (performance_->self_scm ());
- Score_translator::derived_mark ();
Performer_group::derived_mark ();
}
{
performance_ = new Performance;
performance_->unprotect ();
+ context ()->set_property ("output", performance_->self_scm ());
performance_->midi_ = context ()->get_output_def ();
Translator_group::initialize ();
projects / lilypond.git / blobdiff