/*
- 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, 1997--1998 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.
-#include "note-performer.hh"
-#include "musical-request.hh"
+ 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 "audio-item.hh"
-#include "debug.hh"
+#include "audio-column.hh"
+#include "global-context.hh"
+#include "stream-event.hh"
+#include "warn.hh"
-IMPLEMENT_IS_TYPE_B1 (Note_performer,Performer);
-ADD_THIS_TRANSLATOR (Note_performer);
+#include "translator.icc"
-Note_performer::Note_performer ()
+class Note_performer : public Performer
{
- note_req_l_ = 0;
-}
+public:
+ TRANSLATOR_DECLARATIONS (Note_performer);
+
+protected:
+ void stop_translation_timestep ();
+ void process_music ();
-void
-Note_performer::do_print () const
+ 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_, script_evs_;
+ vector<Audio_note *> notes_;
+
+ vector<Audio_note *> last_notes_;
+ Moment last_start_;
+};
+
+void
+Note_performer::process_music ()
{
-#ifndef NPRINT
- if (note_req_l_)
- note_req_l_->print ();
-#endif
+ 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++)
+ {
+ 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))
+ {
+ 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;
+ }
+ }
+ }
+ }
+ }
}
-void
-Note_performer::do_process_requests ()
+void
+Note_performer::stop_translation_timestep ()
{
- // this is _really_ braindead, but it generates some output
- if (!note_req_l_ || !note_req_l_->access_Melodic_req () || !note_req_l_->access_Rhythmic_req ())
- return;
+ if (note_evs_.size ())
+ {
+ last_notes_ = notes_;
+ last_start_ = now_mom ();
+ }
- int transposing_i = 0;
- //urg
- Scalar prop = get_property ("transposing");
- if (!prop.empty_b () && prop.isnum_b ())
- transposing_i = prop;
+ notes_.clear ();
+ note_evs_.clear ();
+ script_evs_.clear ();
+}
+void
+Note_performer::listen_note (Stream_event *ev)
+{
+ note_evs_.push_back (ev);
+}
- play (new Audio_note (note_req_l_, transposing_i));
+void
+Note_performer::listen_tie (Stream_event *ev)
+{
+ script_evs_.push_back (ev);
+}
- note_req_l_ = 0;
+void
+Note_performer::listen_articulation (Stream_event *ev)
+{
+ script_evs_.push_back (ev);
}
-bool
-Note_performer::do_try_request (Request* req_l)
+void
+Note_performer::listen_breathing (Stream_event *ev)
{
- if (note_req_l_)
- return false;
-
- if (!req_l->access_Musical_req () || !req_l->access_Musical_req ()->access_Note_req ())
- return false;
+ //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;
+ }
+}
- note_req_l_ = req_l->access_Musical_req ()->access_Melodic_req ();
+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 */
+ "",
- return true;
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
+
+Note_performer::Note_performer (Context *c)
+ : Performer (c)
+{
}
projects / lilypond.git / blobdiff