patch by Joe Neeman: "I have

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

diff --git a/lily/score-performer.cc b/lily/score-performer.cc
index ed965214379b5ba8634ca16e91ad44e83e7e18f6..ed9e4077755fa465dcb2630ef648878f5f68782d 100644 (file)
--- a/lily/score-performer.cc
+++ b/lily/score-performer.cc
@@ -1,24 +1,108 @@
 /*
   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
 
-#if 0
+  (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
 
 #include "score-performer.hh"
 
-void 
-Score_performer::play_event( Midi_item i )
+#include "audio-column.hh"
+#include "audio-item.hh"
+#include "performance.hh"
+#include "midi-stream.hh"
+#include "string-convert.hh"
+#include "warn.hh"
+#include "context-def.hh"
+#include "output-def.hh"
+#include "context.hh"
+
+ADD_TRANSLATOR_GROUP (Score_performer,
+                     /* doc */ "",
+                     /* create */ "",
+                     /* accept */ "",
+                     /* read */ "",
+                     /* write */ "");
+
+Score_performer::Score_performer ()
+{
+  performance_ = 0;
+}
+
+Score_performer::~Score_performer ()
+{
+}
+
+void
+Score_performer::play_element (Audio_element *p)
+{
+  if (Audio_item *i = dynamic_cast<Audio_item *> (p))
+    audio_column_->add_audio_item (i);
+  performance_->add_element (p);
+}
+
+void
+Score_performer::announce_element (Audio_element_info info)
+{
+  announce_infos_.push_back (info);
+}
+
+void
+Score_performer::prepare (Moment m)
+{
+  audio_column_ = new Audio_column (m);
+  play_element (audio_column_);
+  precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
+}
+
+void
+Score_performer::finish ()
+{
+  recurse_over_translators (context (),
+                           &Translator::finalize,
+                           &Translator_group::finalize,
+                           UP);
+}
+
+void
+Score_performer::one_time_step ()
+{
+  precomputed_recurse_over_translators (context (), PROCESS_MUSIC, UP);
+  do_announces ();
+  precomputed_recurse_over_translators (context (), STOP_TRANSLATION_TIMESTEP, UP);
+}
+
+int
+Score_performer::get_tempo () const
 {
-    file_p_->output( i );
+  return ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
 }
 
-void 
-Score_performer::prepare(Moment m)
+SCM
+Score_performer::get_output ()
 {
-    file_p_->move( mom.prev_ );
+  Music_output *o = performance_;
+  performance_ = 0;
+  return o->self_scm ();
 }
 
-#endif
+void
+Score_performer::derived_mark () const
+{
+  if (performance_)
+    scm_gc_mark (performance_->self_scm ());
+
+  Score_translator::derived_mark ();
+  Performer_group::derived_mark ();
+}
+
+void
+Score_performer::initialize ()
+{
+  performance_ = new Performance;
+  performance_->unprotect ();
+  performance_->midi_ = context ()->get_output_def ();
+
+  Translator_group::initialize ();
+}