X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-performer.cc;h=44efd745742744e43afa4c7e1033503058ab9ce4;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=ff296311ffead109a8de2936f8542a3170b8aa0d;hpb=16cb456cabf477f6d398ff731aa0f10b60913394;p=lilypond.git diff --git a/lily/note-performer.cc b/lily/note-performer.cc index ff296311ff..44efd74574 100644 --- a/lily/note-performer.cc +++ b/lily/note-performer.cc @@ -1,9 +1,20 @@ /* - 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 - (c) 1996--2007 Jan Nieuwenhuizen + 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 . */ #include "performer.hh" @@ -15,9 +26,6 @@ #include "translator.icc" -/** - Convert evs to audio notes. -*/ class Note_performer : public Performer { public: @@ -27,81 +35,168 @@ protected: 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 note_evs_; - vector notes_; + vector note_evs_, script_evs_; + vector notes_; + + vector 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 (prop)) + transposing = *unsmob (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 (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 (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; + } } - - Moment len = get_event_length (n); - if (now_mom().grace_part_) - { - len.grace_part_ = len.main_part_; - len.main_part_ = Rational (0); - } - - Audio_note *p = new Audio_note (*pitp, len, - 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) { }