source file of the GNU LilyPond music typesetter
- (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
+ (c) 1996--2004 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "note-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "musical-request.hh"
+#include "performer.hh"
+#include "event.hh"
#include "audio-item.hh"
-#include "debug.hh"
+#include "audio-column.hh"
+#include "global-translator.hh"
+#include "warn.hh"
-IMPLEMENT_IS_TYPE_B1(Note_performer,Performer);
+/**
+Convert evs to audio notes.
+*/
+class Note_performer : public Performer {
+public:
+ TRANSLATOR_DECLARATIONS(Note_performer);
+
+protected:
+ virtual bool try_music (Music *ev) ;
-ADD_THIS_PERFORMER(Note_performer);
+ virtual void stop_translation_timestep ();
+ virtual void create_audio_elements ();
+ Global_translator* get_global_translator ();
-Note_performer::Note_performer()
-{
- note_req_l_ = 0;
-}
+private:
+ Link_array<Music> note_evs_;
+ Link_array<Audio_note> notes_;
+ Link_array<Audio_note> delayeds_;
+};
void
-Note_performer::do_print() const
+Note_performer::create_audio_elements ()
{
-#ifndef NPRINT
- if ( note_req_l_)
+ if (note_evs_.size ())
{
- note_req_l_->print();
+ int transposing_i = 0;
+ //urg
+ SCM prop = get_property ("transposing");
+ if (gh_number_p (prop))
+ transposing_i = gh_scm2int (prop);
+
+ while (note_evs_.size ())
+ {
+ Music* n = note_evs_.pop ();
+ Pitch *pit = unsmob_pitch (n->get_mus_property ("pitch"));
+
+ if (pit)
+ {
+ Audio_note* p = new Audio_note (*pit, n->get_length (), transposing_i);
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push (p);
+ }
+ }
+ note_evs_.clear ();
}
-#endif
}
-void
-Note_performer::process_requests()
+Global_translator*
+Note_performer::get_global_translator ()
{
- // this is _really_ braindead, but it generates some output
- if ( !note_req_l_ || !note_req_l_->melodic() || !note_req_l_->rhythmic ())
- return;
+ Translator *t = this;
+ Global_translator *global =0;
+ do
+ {
+ t = t->daddy_trans_ ;
+ global = dynamic_cast<Global_translator*> (t);
+ }
+ while (!global);
- play (new Audio_note (note_req_l_) );
- note_req_l_ = 0;
+ return global;
}
-bool
-Note_performer::do_try_request (Request* req_l)
+
+void
+Note_performer::stop_translation_timestep ()
+{
+
+ // why don't grace notes show up here?
+ // --> grace notes effectively do not get delayed
+ Global_translator* global = get_global_translator ();
+ for (int i=0; i < notes_.size (); i++)
+ {
+ Audio_note* n = notes_[i];
+ Moment m= n->delayed_until_mom_;
+ if (m.to_bool ())
+ {
+ global->add_moment_to_process (m);
+ delayeds_.push (n);
+ notes_[i] = 0;
+ notes_.del (i);
+ i--;
+ }
+ }
+
+ Moment now = now_mom ();
+ for (int i=0; i < notes_.size (); i++)
+ {
+ play_element (notes_[i]);
+ }
+ notes_.clear ();
+ note_evs_.clear ();
+ for (int i=0; i < delayeds_.size (); i++)
+ {
+ Audio_note* n = delayeds_[i];
+ if (n->delayed_until_mom_ <= now)
+ {
+ play_element (n);
+ delayeds_[i] = 0;
+ delayeds_.del (i);
+ i--;
+ }
+ }
+}
+
+bool
+Note_performer::try_music (Music* ev)
{
- if ( note_req_l_)
- return false;
+ 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 ();
- if ( !req_l->musical() || !req_l->musical ()->note ())
- return false;
+ return false;
+}
- note_req_l_ = req_l->musical()->melodic ();
- return true;
+ENTER_DESCRIPTION(Note_performer,"","",
+ "note-event busy-playing-event","","","");
+
+Note_performer::Note_performer()
+{
}