X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fscore-performer.cc;h=99d2f84967ee74f366ab5e0db653b199415bc99d;hb=87eedcd59f4082cb0841528ad5bc82cb1d1191e3;hp=f1aa57691796cb2b9321efbd9b0c96ed6aff2d36;hpb=3e07faa176c300184b2e41d0dcfa779360519359;p=lilypond.git

diff --git a/lily/score-performer.cc b/lily/score-performer.cc
index f1aa576917..99d2f84967 100644
--- a/lily/score-performer.cc
+++ b/lily/score-performer.cc
@@ -3,98 +3,156 @@
 
   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 "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"
-
-
-
-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);
+  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)));
+  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 ();
+    }
+
+  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 ()
 {
   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 ();
 }
+
+