-/*
- tie-performer.cc -- implement Tie_performer
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2001 Jan Nieuwenhuizen <janneke@gnu.org>
-
- */
-
-#include "command-request.hh"
-#include "audio-item.hh"
-#include "musical-request.hh"
-#include "pqueue.hh"
-#include "performer.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
-struct CNote_melodic_tuple {
- Melodic_req *req_l_ ;
- Audio_note *note_l_;
- Moment end_;
- CNote_melodic_tuple ();
- CNote_melodic_tuple (Audio_note*, Melodic_req*, Moment);
- static int pitch_compare (CNote_melodic_tuple const &, CNote_melodic_tuple const &);
- static int time_compare (CNote_melodic_tuple const &, CNote_melodic_tuple const &);
-};
+ Copyright (C) 1998--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
-inline int compare (CNote_melodic_tuple const &a, CNote_melodic_tuple const &b)
-{
- return CNote_melodic_tuple::time_compare (a,b);
-}
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
-/**
- Manufacture ties. Acknowledge notes, and put them into a
- priority queue. If we have a Tie_req, connect the notes that finish
- just at this time, and note that start at this time.
+#include "performer.hh"
+
+#include "audio-item.hh"
+#include "context.hh"
+#include "stream-event.hh"
+#include "translator.icc"
+#include <list>
+
+struct Head_audio_event_tuple
+{
+ Audio_element_info head_;
+ // The end moment of the note, so we can calculate a skip and check whether
+ // the note still goes on
+ Moment end_moment_;
+ Head_audio_event_tuple () {}
+ Head_audio_event_tuple (Audio_element_info h, Moment m)
+ {
+ head_ = h;
+ end_moment_ = m;
+ }
+};
- TODO: should share code with Tie_engraver ?
- */
class Tie_performer : public Performer
{
-public:
- VIRTUAL_COPY_CONS (Translator);
- Tie_performer ();
-private:
- bool done_;
- PQueue<CNote_melodic_tuple> past_notes_pq_;
- Tie_req *req_l_;
- Array<CNote_melodic_tuple> now_notes_;
- Array<CNote_melodic_tuple> stopped_notes_;
- Link_array<Audio_tie> tie_p_arr_;
-
+ Stream_event *event_;
+ list<Head_audio_event_tuple> now_heads_;
+ list<Head_audio_event_tuple> now_tied_heads_; // new tied notes
+ list<Head_audio_event_tuple> heads_to_tie_; // heads waiting for closing tie
+
protected:
- virtual void initialize ();
- virtual void start_translation_timestep ();
- virtual void stop_translation_timestep ();
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
virtual void acknowledge_audio_element (Audio_element_info);
- virtual bool try_music (Music*);
- virtual void create_audio_elements ();
+ void process_music ();
+ void listen_tie (Stream_event *);
+public:
+ TRANSLATOR_DECLARATIONS (Tie_performer);
};
-
-Tie_performer::Tie_performer ()
+Tie_performer::Tie_performer (Context *c)
+ : Performer (c)
{
- req_l_ = 0;
- done_ = false;
+ event_ = 0;
}
-ADD_THIS_TRANSLATOR (Tie_performer);
-
-
-#if 0
-Tie_performer::Tie_performer ()
+void
+Tie_performer::listen_tie (Stream_event *ev)
{
- // URG
- // if we don't do this, lily dumps core
- // which means that ``initialize'' and
- // ``start_translation_timestep'' did not happen?!
- initialize ();
+ event_ = ev;
}
-#endif
void
-Tie_performer::initialize ()
+Tie_performer::process_music ()
{
- req_l_ = 0;
+ if (event_)
+ context ()->set_property ("tieMelismaBusy", SCM_BOOL_T);
}
-
-bool
-Tie_performer::try_music (Music *m)
+void
+Tie_performer::acknowledge_audio_element (Audio_element_info inf)
{
- if (!req_l_)
+ if (Audio_note *an = dynamic_cast<Audio_note *> (inf.elem_))
{
- if (Tie_req * c = dynamic_cast<Tie_req*> (m))
- {
- req_l_ = c;
- return true;
- }
+ // for each tied note, store the info and its end moment, so we can
+ // later on check whether (1) the note is still ongoing and (2) how
+ // long the skip is with tieWaitForNote
+ Head_audio_event_tuple inf_mom (inf, now_mom () + an->length_mom_);
+ if (an->tie_event_)
+ now_tied_heads_.push_back (inf_mom);
+ else
+ now_heads_.push_back (inf_mom);
+
+ // Find a previous note that ties to the current note. If it exists,
+ // remove it from the heads_to_tie vector and create the tie
+ list<Head_audio_event_tuple>::iterator it;
+ bool found = false;
+ Stream_event *right_mus = inf.event_;
+ for (it = heads_to_tie_.begin ();
+ !found && (it != heads_to_tie_.end ());
+ it++)
+ {
+ Audio_element_info et = (*it).head_;
+ Audio_note *th = dynamic_cast<Audio_note *> (et.elem_);
+ Stream_event *left_mus = et.event_;
+
+ if (th && right_mus && left_mus
+ && ly_is_equal (right_mus->get_property ("pitch"),
+ left_mus->get_property ("pitch")))
+ {
+ found = true;
+ // (*it).moment_ already stores the end of the tied note!
+ Moment skip = now_mom () - (*it).end_moment_;
+ an->tie_to (th, skip);
+ it = heads_to_tie_.erase (it);
+ }
+ }
+ if (found)
+ return;
+ for (it = heads_to_tie_.begin ();
+ !found && (it != heads_to_tie_.end ());
+ it++)
+ {
+ Audio_element_info et = (*it).head_;
+ Audio_note *th = dynamic_cast<Audio_note *> (et.elem_);
+ Stream_event *left_mus = et.event_;
+
+ if (!(th && right_mus && left_mus))
+ continue;
+
+ SCM p1 = left_mus->get_property ("pitch");
+ SCM p2 = right_mus->get_property ("pitch");
+ if (unsmob<Pitch> (p1) && unsmob<Pitch> (p2)
+ && unsmob<Pitch> (p1)->tone_pitch () == unsmob<Pitch> (p2)->tone_pitch ())
+ {
+ found = true;
+ // (*it).moment_ already stores the end of the tied note!
+ Moment skip = now_mom () - (*it).end_moment_;
+ an->tie_to (th, skip);
+ it = heads_to_tie_.erase (it);
+ }
+ }
}
- return false;
}
void
-Tie_performer::acknowledge_audio_element (Audio_element_info i)
+Tie_performer::start_translation_timestep ()
{
- if (Audio_note *nh = dynamic_cast<Audio_note *> (i.elem_l_))
- {
- Note_req * m = dynamic_cast<Note_req* > (i.req_l_);
- if (!m)
- return;
- now_notes_.push (CNote_melodic_tuple (nh, m, now_mom ()+ m->length_mom ()));
- }
+ context ()->set_property ("tieMelismaBusy",
+ ly_bool2scm (heads_to_tie_.size ()));
}
+// a predicate implemented as a class, used to delete all tied notes with end
+// moment in the past:
+class end_moment_passed
+{
+protected:
+ Moment now;
+public:
+ end_moment_passed (Moment mom) : now (mom) {}
+ bool operator () (const Head_audio_event_tuple &value)
+ {
+ return (value.end_moment_ <= now);
+ }
+};
+
void
-Tie_performer::create_audio_elements ()
+Tie_performer::stop_translation_timestep ()
{
- if (req_l_ && ! done_)
+ // We might have dangling open ties like c~ d. Close them, unless the first
+ // note is still ongoing or we have we have tieWaitForNote set...
+ if (!to_boolean (get_property ("tieWaitForNote")))
{
- Moment now = now_mom ();
- Link_array<Audio_note> nharr;
-
- stopped_notes_.clear ();
- while (past_notes_pq_.size ()
- && past_notes_pq_.front ().end_ == now)
- stopped_notes_.push (past_notes_pq_.get ());
- done_ = true;
- return;
+ heads_to_tie_.remove_if (end_moment_passed (now_mom ()));
}
- if (req_l_)
+ // Append now_heads_ and now_tied_heads to heads_to_tie_ for the next time step
+ if (event_)
{
- now_notes_.sort (CNote_melodic_tuple::pitch_compare);
- stopped_notes_.sort (CNote_melodic_tuple::pitch_compare);
- int i=0;
- int j=0;
- int tie_count=0;
- while (i < now_notes_.size () && j < stopped_notes_.size ())
- {
- int comp
- = Pitch::compare (*unsmob_pitch (now_notes_[i].req_l_->get_mus_property ("pitch")),
- *unsmob_pitch (stopped_notes_[j].req_l_->get_mus_property ("pitch")));
-
- if (comp)
- {
- (comp < 0) ? i ++ : j++;
- continue;
- }
- else
- {
- tie_count ++;
-
- /* don't go around recreating ties that were already
- made. Not infallible. Due to reordering in sort (),
- we will make the wrong ties when notenotes are
- added. */
- if (tie_count > tie_p_arr_.size ())
- {
- Audio_tie * p = new Audio_tie;
- p->set_note (LEFT, stopped_notes_[j].note_l_);
- p->set_note (RIGHT, now_notes_[i].note_l_);
- tie_p_arr_.push (p);
- announce_element (Audio_element_info (p, req_l_));
- }
- i++;
- j++;
-
- }
- }
-
- if (!tie_p_arr_.size ())
- {
- req_l_->origin ()->warning (_ ("No ties were created!"));
- }
+ heads_to_tie_.splice (heads_to_tie_.end (), now_heads_);
}
-}
+ heads_to_tie_.splice (heads_to_tie_.end (), now_tied_heads_);
-void
-Tie_performer::stop_translation_timestep ()
-{
- for (int i=0; i < now_notes_.size (); i++)
- {
- past_notes_pq_.insert (now_notes_[i]);
- }
- now_notes_.clear ();
-
- for (int i=0; i< tie_p_arr_.size (); i++)
- {
- //play_element (tie_p_arr_[i]);
- tie_p_arr_[i]->note_l_drul_[RIGHT]->tie_to (tie_p_arr_[i]->note_l_drul_[LEFT]);
- }
- tie_p_arr_.clear ();
+ event_ = 0;
+ now_heads_.clear ();
+ now_tied_heads_.clear ();
}
void
-Tie_performer::start_translation_timestep ()
+Tie_performer::boot ()
{
- req_l_ =0;
- done_ = false;
- Moment now = now_mom ();
- while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
- past_notes_pq_.delmin ();
+ ADD_LISTENER (Tie_performer, tie);
}
+ADD_TRANSLATOR (Tie_performer,
+ /* doc */
+ "Generate ties between note heads of equal pitch.",
-CNote_melodic_tuple::CNote_melodic_tuple ()
-{
- note_l_ =0;
- req_l_ =0;
- end_ = 0;
-}
+ /* create */
+ "",
-CNote_melodic_tuple::CNote_melodic_tuple (Audio_note *h, Melodic_req*m, Moment mom)
-{
- note_l_ = h;
- req_l_ = m;
- end_ = mom;
-}
+ /* read */
+ "tieWaitForNote",
-int
-CNote_melodic_tuple::pitch_compare (CNote_melodic_tuple const&h1,
- CNote_melodic_tuple const &h2)
-{
- SCM p1 = h1.req_l_->get_mus_property ("pitch");
- SCM p2 = h2.req_l_->get_mus_property ("pitch");
- return Pitch::compare (*unsmob_pitch (p1),
- *unsmob_pitch (p2));
-}
-
-int
-CNote_melodic_tuple::time_compare (CNote_melodic_tuple const&h1,
- CNote_melodic_tuple const &h2)
-{
- return (h1.end_ - h2.end_).sign ();
-}
+ /* write */
+ "tieMelismaBusy"
+ );