/*
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 "moment.hh"
#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;
+ skipping_ = false;
+}
+
+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 ()
+{
+ if (to_boolean (context ()->get_property ("skipTypesetting")))
+ {
+ if (!skipping_)
+ {
+ skip_start_mom_ = audio_column_->at_mom ();
+ skipping_ = true;
+ }
+ }
+ else
+ {
+ if (skipping_)
+ {
+ offset_mom_ -= audio_column_->at_mom () - skip_start_mom_;
+ skipping_ = false;
+ }
+
+ audio_column_->offset_at_mom (offset_mom_);
+ 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
+{
+ return ::get_tempo (performance_->midi_, Moment (Rational (1, 4)));
+}
+
+SCM
+Score_performer::get_output ()
{
- file_p_->output( i );
+ Music_output *o = performance_;
+ performance_ = 0;
+ return o->self_scm ();
}
-void
-Score_performer::prepare(Moment m)
+void
+Score_performer::derived_mark () const
{
- file_p_->move( mom.prev_ );
+ if (performance_)
+ scm_gc_mark (performance_->self_scm ());
+
+ Score_translator::derived_mark ();
+ Performer_group::derived_mark ();
}
-#endif
+void
+Score_performer::initialize ()
+{
+ performance_ = new Performance;
+ performance_->unprotect ();
+ performance_->midi_ = context ()->get_output_def ();
+
+ Translator_group::initialize ();
+}