/*
- 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--2014 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1996--2004 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 "midi-def.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 "audio-staff.hh"
+#include "audio-item.hh"
+ADD_TRANSLATOR_GROUP (Score_performer,
+ /* doc */
+ "",
+ /* create */
+ "",
-ENTER_DESCRIPTION(Score_performer,
-/* descr */ "",
-/* creats*/ "",
-/* accepts */ "",
-/* acks */ "",
-/* reads */ "",
-/* write */ "");
+ /* 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))
+ announce_infos_.push_back (info);
+ if (Audio_staff *s = dynamic_cast<Audio_staff *> (info.elem_))
{
- audio_column_->add_audio_item (i);
+ performance_->audio_staffs_.push_back (s);
}
- performance_->add_element (p);
+
+ performance_->add_element (info.elem_);
}
void
-Score_performer::announce_element (Audio_element_info info)
+Score_performer::acknowledge_audio_elements ()
{
- announce_infos_.push (info);
-
-
- /*
- huh?
- copied from score-engraver, but
- this way staff gets in list twice
- if (Audio_item* i = dynamic_cast<Audio_item*> (info.elem_))
- performance_->add_element (i);
- */
+ 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)
+void
+Score_performer::connect_to_context (Context *c)
{
- Global_translator::prepare (m);
- audio_column_ = new Audio_column (m);
- play_element (audio_column_);
- start_translation_timestep ();
-}
+ Performer_group::connect_to_context (c);
+ Dispatcher *d = c->get_global_context ()->event_source ();
+ d->add_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->add_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->add_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+}
-void
-Score_performer::one_time_step ()
+void
+Score_performer::disconnect_from_context ()
{
- process_music ();
- do_announces ();
- stop_translation_timestep ();
- check_removal ();
+ Dispatcher *d = context ()->get_global_context ()->event_source ();
+ d->remove_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
+ d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
+ d->remove_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+
+ Performer_group::disconnect_from_context ();
}
+IMPLEMENT_LISTENER (Score_performer, prepare);
void
-Score_performer::start ()
+Score_performer::prepare (SCM sev)
{
+ Stream_event *ev = unsmob_stream_event (sev);
+ SCM sm = ev->get_property ("moment");
+ Moment *m = Moment::unsmob (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
+IMPLEMENT_LISTENER (Score_performer, finish);
+void
+Score_performer::finish (SCM)
{
- return performance_->midi_->get_tempo (Moment (Rational (1, 4)));
+ SCM channel_mapping = context ()->get_property ("midiChannelMapping");
+ bool use_ports = channel_mapping == ly_symbol2scm ("voice");
+ performance_->ports_ = use_ports;
+ recurse_over_translators (context (),
+ &Translator::finalize,
+ &Translator_group::finalize,
+ UP);
}
+IMPLEMENT_LISTENER (Score_performer, one_time_step);
void
-Score_performer::finish ()
+Score_performer::one_time_step (SCM)
{
- check_removal ();
- finalize ();
+ // 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);
}
-Music_output *
-Score_performer::get_output ()
+void
+Score_performer::derived_mark () const
{
- Music_output * o = performance_;
- performance_ =0;
- return o;
+ if (performance_)
+ scm_gc_mark (performance_->self_scm ());
+
+ Performer_group::derived_mark ();
}
void
Score_performer::initialize ()
{
- unsmob_context_def (definition_)->apply_default_property_operations (this);
performance_ = new Performance;
- performance_->midi_ = dynamic_cast<Midi_def*> (get_output_def ());
+ performance_->unprotect ();
+ context ()->set_property ("output", performance_->self_scm ());
+ performance_->midi_ = context ()->get_output_def ();
Translator_group::initialize ();
}
projects / lilypond.git / blobdiff