/*
- midi-walker.hh -- declare Midi_walker
+ This file is part of LilyPond, the GNU music typesetter.
- (c) 1996,97 Han-Wen Nienhuys, Jan Nieuwenhuizen <jan@digicash.com>
- */
+ Copyright (C) 1996--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
-#ifndef MIDIWALKER_HH
-#define MIDIWALKER_HH
+ 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.
-#include "lily-proto.hh"
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
-#if 0
+#ifndef MIDI_WALKER_HH
+#define MIDI_WALKER_HH
-/*
- sketch. . .
+#include "pqueue.hh"
+#include "lily-proto.hh"
+#include "moment.hh"
- It would be totally cool to share code with the Engraver hierarchy,
- but this is very tough i think.
-
- */
+struct Midi_note_event : PQueue_ent<int, Midi_note *>
+{
+ bool ignore_;
+ Midi_note_event ();
+};
-class Voice_performer_group_performer : public Performer_group_performer {
+int compare (Midi_note_event const &left, Midi_note_event const &right);
-};
+/**
+ walk audio and output midi
+*/
+class Midi_walker
+{
+public:
+ Midi_walker (Audio_staff *audio_staff, Midi_track *midi_track);
+ ~Midi_walker ();
-#endif
+ void process ();
+ void operator ++(int);
+ bool ok () const;
+ void finalize ();
-#endif // MIDIWALKER_HH
+private:
+ void do_start_note (Midi_note *note);
+ void do_stop_notes (int);
+ void output_event (int, Midi_item *l);
+ Midi_item *get_midi (Audio_item *);
+ Midi_track *track_;
+ bool percussion_;
+ bool merge_unisons_;
+ vsize index_;
+ vector<Audio_item *> items_;
+ PQueue<Midi_note_event> stop_note_queue;
+ int last_tick_;
+ vector<Midi_item *> midi_events_;
+};
+#endif // MIDI_WALKER_HH
projects / lilypond.git / blobdiff