Merge with master

[lilypond.git] / lily / score-performer.cc

diff --git a/lily/score-performer.cc b/lily/score-performer.cc
index 944f44e0cca3c3bbf149636c647390fa104ad8ba..99d2f84967ee74f366ab5e0db653b199415bc99d 100644 (file)
--- a/lily/score-performer.cc
+++ b/lily/score-performer.cc
@@ -1,70 +1,158 @@
 /*
   score-performer.cc -- implement Score_performer
 
-  (c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
-                 Jan Nieuwenhuizen <jan@digicash.com>
- */
+  source file of the GNU LilyPond music typesetter
+
+  (c) 1996--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
 
 #include "score-performer.hh"
-#include "input-translator.hh"
-#include "midi-item.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 "debug.hh"
+#include "warn.hh"
+#include "audio-staff.hh"
+#include "audio-item.hh"
 
-IMPLEMENT_IS_TYPE_B1(Score_performer,Performer_group_performer);
-IMPLEMENT_STATIC_NAME(Score_performer);
-ADD_THIS_PERFORMER(Score_performer);
+ADD_TRANSLATOR_GROUP (Score_performer,
+                     /* doc */ "",
+                     /* create */ "",
+                     /* read */ "",
+                     /* write */ "");
 
-Score_performer::Score_performer()
+Score_performer::Score_performer ()
 {
-    // not so much ugh, as [todo]
-    *mlog << "MIDI output to " << "lelie.midi" << " ...\n";    
-    midi_stream_p_ = new Midi_stream( "lelie.midi", 
-        // don-t forget: extra track 0 for tempo/copyright stuff...
-       //score_l_->staffs_.size() + 1, 
-       1, 
-       384 );
+  performance_ = 0;
+  skipping_ = false;
+  audio_column_ = 0;
 }
 
-Score_performer::~Score_performer()
+Score_performer::~Score_performer ()
 {
-    delete midi_stream_p_;
 }
 
-Translator* 
-Score_performer::ancestor_l( int l ) 
-{ 
-    return Global_translator::ancestor_l( l );
+void
+Score_performer::announce_element (Audio_element_info info)
+{
+  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_);
 }
 
-int 
-Score_performer::depth_i() const 
-{ 
-    return Global_translator::depth_i();
+void
+Score_performer::acknowledge_audio_elements ()
+{
+  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::play_event( Midi_item* l )
+
+void
+Score_performer::connect_to_context (Context *c)
 {
-//    file_p_->output( l );
-//    cerr << String_convert::bin2hex_str( l->str() );
-    // this should be done at staff level, 
-    // cached per staff probably.
-    // but it generates output...
-    *midi_stream_p_ << *l;
+  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::prepare( Moment m )
+void
+Score_performer::disconnect_from_context ()
 {
-    now_mom_ = m;
+  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::process()
+IMPLEMENT_LISTENER (Score_performer, prepare);
+void
+Score_performer::prepare (SCM sev)
 {
-    process_requests();
-    prev_mom_ = now_mom_;
+  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);
 }
 
+IMPLEMENT_LISTENER (Score_performer, finish);
+void
+Score_performer::finish (SCM)
+{
+  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);
+}
+
+void
+Score_performer::derived_mark () const
+{
+  if (performance_)
+    scm_gc_mark (performance_->self_scm ());
+
+  Performer_group::derived_mark ();
+}
+
+void
+Score_performer::initialize ()
+{
+  performance_ = new Performance;
+  performance_->unprotect ();
+  context ()->set_property ("output", performance_->self_scm ()); 
+  performance_->midi_ = context ()->get_output_def ();
+
+
+  Translator_group::initialize ();
+}
+
+