source file of the GNU LilyPond music typesetter
- (c) 1996--2004 Jan Nieuwenhuizen <janneke@gnu.org>
- */
+ (c) 1996--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
#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"
-
-ENTER_DESCRIPTION (Score_performer,
-/* descr */ "",
-/* creats*/ "",
-/* accepts */ "",
-/* acks */ "",
-/* reads */ "",
-/* write */ "");
+#include "audio-staff.hh"
+#include "audio-item.hh"
+ADD_TRANSLATOR_GROUP (Score_performer,
+ /* 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))
+ 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);
+ 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)
{
- audio_column_ = new Audio_column (m);
- play_element (audio_column_);
- recurse_over_translators (context (), &Translator::start_translation_timestep, UP);
+ 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::finish ()
+Score_performer::disconnect_from_context ()
{
- recurse_over_translators (context (), &Translator::finalize, UP);
+ 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 ();
}
-
-void
-Score_performer::one_time_step ()
+
+IMPLEMENT_LISTENER (Score_performer, prepare);
+void
+Score_performer::prepare (SCM sev)
{
- recurse_over_translators (context (), &Performer::process_music, UP);
- recurse_over_translators (context (), &Performer::do_announces, UP);
- recurse_over_translators (context (), &Translator::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);
+ 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 ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
+ recurse_over_translators (context (),
+ &Translator::finalize,
+ &Translator_group::finalize,
+ UP);
}
+IMPLEMENT_LISTENER (Score_performer, one_time_step);
+void
+Score_performer::one_time_step (SCM)
+{
+ 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 ();
+ }
-Music_output *
-Score_performer::get_output ()
+ precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
+}
+
+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 ()
{
performance_ = new Performance;
- performance_->midi_ = get_output_def ();
+ performance_->unprotect ();
+ context ()->set_property ("output", performance_->self_scm ());
+ performance_->midi_ = context ()->get_output_def ();
+
Translator_group::initialize ();
}
+
+