/*
- note-performer.cc -- implement Note_performer
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1996--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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/>.
*/
#include "performer.hh"
#include "translator.icc"
-/**
- Convert evs to audio notes.
-*/
class Note_performer : public Performer
{
public:
void stop_translation_timestep ();
void process_music ();
- DECLARE_TRANSLATOR_LISTENER (note);
+ void listen_note (Stream_event *);
+ void listen_breathing (Stream_event *);
+ void listen_tie (Stream_event *);
+ void listen_articulation (Stream_event *);
private:
- vector<Stream_event*> note_evs_;
- vector<Audio_note*> notes_;
+ vector<Stream_event *> note_evs_, script_evs_;
+ vector<Audio_note *> notes_;
+
+ vector<Audio_note *> last_notes_;
+ Moment last_start_;
};
void
Note_performer::process_music ()
{
- if (note_evs_.size ())
+ if (!note_evs_.size ())
+ return;
+
+ Pitch transposing;
+ SCM prop = get_property ("instrumentTransposition");
+ if (unsmob<Pitch> (prop))
+ transposing = *unsmob<Pitch> (prop);
+
+ for (vsize i = 0; i < note_evs_.size (); i++)
{
- Pitch transposing;
- SCM prop = get_property ("instrumentTransposition");
- if (unsmob_pitch (prop))
- transposing = *unsmob_pitch (prop);
-
- while (note_evs_.size ())
- {
- Stream_event *n = note_evs_.back ();
- note_evs_.pop_back ();
- SCM pit = n->get_property ("pitch");
-
- if (Pitch *pitp = unsmob_pitch (pit))
- {
- SCM articulations = n->get_property ("articulations");
- Stream_event *tie_event = 0;
- for (SCM s = articulations;
- !tie_event && scm_is_pair (s);
- s = scm_cdr (s))
+ Stream_event *n = note_evs_[i];
+ SCM pit = n->get_property ("pitch");
+
+ if (Pitch *pitp = unsmob<Pitch> (pit))
+ {
+ SCM articulations = n->get_property ("articulations");
+ Stream_event *tie_event = 0;
+ Moment len = get_event_length (n, now_mom ());
+ int velocity = 0;
+
+ for (vsize j = script_evs_.size (); j--;)
+ articulations = scm_cons (script_evs_[j]->self_scm (), articulations);
+
+ for (SCM s = articulations; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Stream_event *ev = unsmob<Stream_event> (scm_car (s));
+ if (!ev)
+ continue;
+
+ if (ev->in_event_class ("tie-event"))
+ tie_event = ev;
+ SCM f = ev->get_property ("midi-length");
+ if (ly_is_procedure (f))
+ len = robust_scm2moment (scm_call_2 (f, len.smobbed_copy (),
+ context ()->self_scm ()),
+ len);
+ velocity += robust_scm2int (ev->get_property ("midi-extra-velocity"), 0);
+ }
+
+ Audio_note *p = new Audio_note (*pitp, len,
+ tie_event, transposing, velocity);
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push_back (p);
+
+ /*
+ Grace notes shorten the previous non-grace note. If it was
+ part of a tie, shorten the first note in the tie.
+ */
+ if (now_mom ().grace_part_)
+ {
+ if (last_start_.grace_part_ == Rational (0))
{
- Stream_event *ev = unsmob_stream_event (scm_car (s));
- if (!ev)
- continue;
-
- if (ev->in_event_class ("tie-event"))
- tie_event = ev;
+ for (vsize i = 0; i < last_notes_.size (); i++)
+ {
+ Audio_note *tie_head = last_notes_[i]->tie_head ();
+ Moment start = tie_head->audio_column_->when ();
+ //Shorten the note if it would overlap. It might
+ //not if there's a rest in between.
+ if (start + tie_head->length_mom_ > now_mom ())
+ tie_head->length_mom_ = now_mom () - start;
+ }
}
-
- Audio_note *p = new Audio_note (*pitp, get_event_length (n),
- tie_event, transposing.negated ());
- Audio_element_info info (p, n);
- announce_element (info);
- notes_.push_back (p);
- }
- }
- note_evs_.clear ();
+ }
+ }
}
}
void
Note_performer::stop_translation_timestep ()
{
- // why don't grace notes show up here?
- // --> grace notes effectively do not get delayed
+ if (note_evs_.size ())
+ {
+ last_notes_ = notes_;
+ last_start_ = now_mom ();
+ }
+
notes_.clear ();
note_evs_.clear ();
+ script_evs_.clear ();
}
-IMPLEMENT_TRANSLATOR_LISTENER (Note_performer, note)
void
Note_performer::listen_note (Stream_event *ev)
{
note_evs_.push_back (ev);
}
-ADD_TRANSLATOR (Note_performer, "", "",
- "", "");
+void
+Note_performer::listen_tie (Stream_event *ev)
+{
+ script_evs_.push_back (ev);
+}
+
+void
+Note_performer::listen_articulation (Stream_event *ev)
+{
+ script_evs_.push_back (ev);
+}
+
+void
+Note_performer::listen_breathing (Stream_event *ev)
+{
+ //Shorten previous note if needed
+ SCM f = ev->get_property ("midi-length");
+ if (ly_is_procedure (f))
+ for (vsize i = 0; i < last_notes_.size (); i++)
+ {
+ //Pass midi-length the available time since the last note started,
+ //including any intervening rests. It returns how much is left for the
+ //note.
+ Moment start = last_notes_[i]->audio_column_->when ();
+ Moment available = now_mom () - start;
+ Moment len = robust_scm2moment (scm_call_2 (f, available.smobbed_copy (),
+ context ()->self_scm ()), available);
+ //Take time from the first note of the tie, since it has all the length.
+ Audio_note *tie_head = last_notes_[i]->tie_head ();
+ len += start - tie_head->audio_column_->when ();
+ if (len < tie_head->length_mom_)
+ tie_head->length_mom_ = len;
+ }
+}
+
+void
+Note_performer::boot ()
+{
+ ADD_LISTENER (Note_performer, note);
+ ADD_LISTENER (Note_performer, breathing);
+ ADD_LISTENER (Note_performer, tie);
+ ADD_LISTENER (Note_performer, articulation);
+}
+
+ADD_TRANSLATOR (Note_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
-Note_performer::Note_performer ()
+Note_performer::Note_performer (Context *c)
+ : Performer (c)
{
}
projects / lilypond.git / blobdiff