/*
note-performer.cc -- implement Note_performer
- (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ source file of the GNU LilyPond music typesetter
-#include "note-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "musical-request.hh"
-#include "midi-item.hh"
-#include "debug.hh"
+ (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-IMPLEMENT_IS_TYPE_B1(Note_performer,Performer);
+#include "performer.hh"
+#include "audio-item.hh"
+#include "audio-column.hh"
+#include "global-context.hh"
+#include "warn.hh"
+#include "music.hh"
-ADD_THIS_PERFORMER(Note_performer);
-
-Note_performer::Note_performer()
+/**
+ Convert evs to audio notes.
+*/
+class Note_performer : public Performer
{
- note_req_l_ = 0;
- off_mom_ = 0;
-}
+public:
+ TRANSLATOR_DECLARATIONS (Note_performer);
+
+protected:
+ virtual bool try_music (Music *ev);
+
+ void stop_translation_timestep ();
+ void process_music ();
-Note_performer::~Note_performer()
+private:
+ Link_array<Music> note_evs_;
+ Link_array<Audio_note> notes_;
+};
+
+void
+Note_performer::process_music ()
{
+ if (note_evs_.size ())
+ {
+ int transposing = 0;
+
+ SCM prop = get_property ("instrumentTransposition");
+ if (unsmob_pitch (prop))
+ transposing = unsmob_pitch (prop)->semitone_pitch ();
+
+ while (note_evs_.size ())
+ {
+ Music *n = note_evs_.pop ();
+ SCM pit = n->get_property ("pitch");
+
+ if (Pitch *pitp = unsmob_pitch (pit))
+ {
+ Audio_note *p = new Audio_note (*pitp, n->get_length (), - transposing);
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push (p);
+ }
+ }
+ note_evs_.clear ();
+ }
}
-void
-Note_performer::do_print() const
+void
+Note_performer::stop_translation_timestep ()
{
-#ifndef NPRINT
- if ( note_req_l_ )
- note_req_l_->print();
-#endif
+ // why don't grace notes show up here?
+ // --> grace notes effectively do not get delayed
+ Moment now = now_mom ();
+ for (int i = 0; i < notes_.size (); i++)
+ play_element (notes_[i]);
+ notes_.clear ();
+ note_evs_.clear ();
}
-void
-Note_performer::process_requests()
+bool
+Note_performer::try_music (Music *ev)
{
-// if ( when() == off_mom_ )
-// play_event( Note_event( current_l_->pitch() ) );
-
-//Midi_note( Melodic_req* melreq_l, int channel_i, bool on_bo )
-
- // this is _really_ braindead, but it generates some output
- if ( !note_req_l_ || !note_req_l_->melodic() || !note_req_l_->rhythmic() )
- return;
-
- // ugh, need to know channel (===track===staff) too
- int channel_i = get_track_i();
- Moment mom = get_mom();
- if ( !off_mom_ ) { // start note
- off_mom_ = mom + note_req_l_->duration();
- Midi_note n( note_req_l_->melodic(), channel_i, true );
- play_event( &n );
- }
- else if ( mom == off_mom_ ) {
- Midi_note n( note_req_l_->melodic(), channel_i, false );
- play_event( &n );
- note_req_l_ = 0;
- off_mom_ = 0;
+ if (ev->is_mus_type ("note-event"))
+ {
+ note_evs_.push (ev);
+ return true;
}
+ else if (ev->is_mus_type ("busy-playing-event"))
+ return note_evs_.size ();
+
+ return false;
}
-bool
-Note_performer::do_try_request( Request* req_l )
+#include "translator.icc"
+
+ADD_TRANSLATOR (Note_performer, "", "",
+ "note-event "
+ "busy-playing-event",
+ "", "");
+
+Note_performer::Note_performer ()
{
- if ( note_req_l_ )
- return false;
-
- // huh?
-// if (req_l->musical() && (req_l->musical()->note() || req_l->musical()->rest()))
-// note_req_l_ = req_l->musical()->rhythmic();
- if ( req_l->musical() && req_l->musical()->note() )
-// huh?
- note_req_l_ = req_l->musical()->melodic();
- else
- return false;
-
- return true;
}
-