2 Copyright (C) 2007 Paul Davis
3 Written by Dave Robillard, 2007
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #define __STDC_LIMIT_MACROS 1
27 #include <pbd/enumwriter.h>
28 #include <midi++/events.h>
30 #include <ardour/midi_model.h>
31 #include <ardour/midi_source.h>
32 #include <ardour/types.h>
33 #include <ardour/session.h>
36 using namespace ARDOUR;
38 void MidiModel::write_lock() {
40 _automation_lock.lock();
43 void MidiModel::write_unlock() {
44 _lock.writer_unlock();
45 _automation_lock.unlock();
48 void MidiModel::read_lock() const {
50 /*_automation_lock.lock();*/
53 void MidiModel::read_unlock() const {
54 _lock.reader_unlock();
55 /*_automation_lock.unlock();*/
58 // Read iterator (const_iterator)
60 MidiModel::const_iterator::const_iterator(const MidiModel& model, double t)
62 , _is_end( (t == DBL_MAX) || model.empty())
65 //cerr << "Created MIDI iterator @ " << t << " (is end: " << _is_end << ")" << endl;
72 _note_iter = model.notes().end();
73 // find first note which begins after t
74 for (MidiModel::Notes::const_iterator i = model.notes().begin(); i != model.notes().end(); ++i) {
75 if ((*i)->time() >= t) {
81 MidiControlIterator earliest_control(boost::shared_ptr<AutomationList>(), DBL_MAX, 0.0);
83 _control_iters.reserve(model.controls().size());
85 // this loop finds the earliest control event available
86 for (Automatable::Controls::const_iterator i = model.controls().begin();
87 i != model.controls().end(); ++i) {
90 i->first.type() == MidiCCAutomation ||
91 i->first.type() == MidiPgmChangeAutomation ||
92 i->first.type() == MidiPitchBenderAutomation ||
93 i->first.type() == MidiChannelAftertouchAutomation);
96 bool ret = i->second->list()->rt_safe_earliest_event_unlocked(t, DBL_MAX, x, y);
98 //cerr << "MIDI Iterator: CC " << i->first.id() << " (size " << i->second->list()->size()
99 // << ") has no events past " << t << endl;
104 assert(y >= i->first.min());
105 assert(y <= i->first.max());
107 const MidiControlIterator new_iter(i->second->list(), x, y);
109 //cerr << "MIDI Iterator: CC " << i->first.id() << " added (" << x << ", " << y << ")" << endl;
110 _control_iters.push_back(new_iter);
112 // if the x of the current control is less than earliest_control
113 // we have a new earliest_control
114 if (x < earliest_control.x) {
115 earliest_control = new_iter;
116 _control_iter = _control_iters.end();
118 // now _control_iter points to the last Element in _control_iters
122 if (_note_iter != model.notes().end()) {
123 MIDI::Event *new_event = new MIDI::Event((*_note_iter)->on_event(), true);
125 _event = boost::shared_ptr<MIDI::Event>(new_event);
128 double time = DBL_MAX;
129 // in case we have no notes in the region, we still want to get controller messages
131 time = _event->time();
132 // if the note is going to make it this turn, advance _note_iter
133 if (earliest_control.x > time) {
134 _active_notes.push(*_note_iter);
139 // <=, because we probably would want to send control events first
140 if (earliest_control.automation_list.get() && earliest_control.x <= time) {
141 _event = model.control_to_midi_event(earliest_control);
143 _control_iter = _control_iters.end();
146 if ( (! _event.get()) || _event->size() == 0) {
147 //cerr << "Created MIDI iterator @ " << t << " is at end." << endl;
150 // eliminate possible race condition here (ugly)
151 static Glib::Mutex mutex;
152 Glib::Mutex::Lock lock(mutex);
154 _model->read_unlock();
158 //printf("New MIDI Iterator = %X @ %lf\n", _event->type(), _event->time());
162 MidiModel::const_iterator::~const_iterator()
165 _model->read_unlock();
169 const MidiModel::const_iterator& MidiModel::const_iterator::operator++()
172 throw std::logic_error("Attempt to iterate past end of MidiModel");
175 /*cerr << "const_iterator::operator++: _event type:" << hex << "0x" << int(_event->type())
176 << " buffer: 0x" << int(_event->buffer()[0]) << " 0x" << int(_event->buffer()[1])
177 << " 0x" << int(_event->buffer()[2]) << endl;*/
179 if (! (_event->is_note() || _event->is_cc() || _event->is_pgm_change() || _event->is_pitch_bender() || _event->is_channel_aftertouch()) ) {
180 cerr << "FAILED event buffer: " << hex << int(_event->buffer()[0]) << int(_event->buffer()[1]) << int(_event->buffer()[2]) << endl;
182 assert((_event->is_note() || _event->is_cc() || _event->is_pgm_change() || _event->is_pitch_bender() || _event->is_channel_aftertouch()));
184 // Increment past current control event
185 if (!_event->is_note() && _control_iter != _control_iters.end() && _control_iter->automation_list.get()) {
186 double x = 0.0, y = 0.0;
187 const bool ret = _control_iter->automation_list->rt_safe_earliest_event_unlocked(
188 _control_iter->x, DBL_MAX, x, y, false);
189 //cerr << "control_iter x:" << _control_iter->x << " y:" << _control_iter->y << endl;
192 //cerr << "Incremented " << _control_iter->automation_list->parameter().id() << " to " << x << endl;
193 _control_iter->x = x;
194 _control_iter->y = y;
196 cerr << "Hit end of " << _control_iter->automation_list->parameter().id() << endl;
197 _control_iter->automation_list.reset();
198 _control_iter->x = DBL_MAX;
202 const std::vector<MidiControlIterator>::iterator old_control_iter = _control_iter;
203 _control_iter = _control_iters.begin();
205 // find the _control_iter with the earliest event time
206 for (std::vector<MidiControlIterator>::iterator i = _control_iters.begin();
207 i != _control_iters.end(); ++i) {
208 if (i->x < _control_iter->x) {
213 enum Type {NIL, NOTE_ON, NOTE_OFF, AUTOMATION};
218 // Next earliest note on
219 if (_note_iter != _model->notes().end()) {
221 t = (*_note_iter)->time();
224 // Use the next earliest note off iff it's earlier than the note on
225 if (_model->note_mode() == Sustained && (! _active_notes.empty())) {
226 if (type == NIL || _active_notes.top()->end_time() <= (*_note_iter)->time()) {
228 t = _active_notes.top()->end_time();
232 // Use the next earliest controller iff it's earlier than the note event
233 if (_control_iter != _control_iters.end() && _control_iter->x != DBL_MAX /*&& _control_iter != old_control_iter */) {
234 if (type == NIL || _control_iter->x < t) {
239 if (type == NOTE_ON) {
240 //cerr << "********** MIDI Iterator = note on" << endl;
241 MIDI::Event *new_event = new MIDI::Event((*_note_iter)->on_event(), true);
243 _event = boost::shared_ptr<MIDI::Event>(new_event);
244 _active_notes.push(*_note_iter);
246 } else if (type == NOTE_OFF) {
247 //cerr << "********** MIDI Iterator = note off" << endl;
248 MIDI::Event *new_event = new MIDI::Event(_active_notes.top()->off_event(), true);
250 _event = boost::shared_ptr<MIDI::Event>(new_event);
252 } else if (type == AUTOMATION) {
253 //cerr << "********** MIDI Iterator = Automation" << endl;
254 _event = _model->control_to_midi_event(*_control_iter);
256 //cerr << "********** MIDI Iterator = End" << endl;
260 assert(_is_end || _event->size() > 0);
265 bool MidiModel::const_iterator::operator==(const const_iterator& other) const
267 if (_is_end || other._is_end) {
268 return (_is_end == other._is_end);
270 return (_event == other._event);
274 MidiModel::const_iterator& MidiModel::const_iterator::operator=(const const_iterator& other)
276 if (_locked && _model != other._model) {
277 _model->read_unlock();
280 _model = other._model;
281 _event = other._event;
282 _active_notes = other._active_notes;
283 _is_end = other._is_end;
284 _locked = other._locked;
285 _note_iter = other._note_iter;
286 _control_iters = other._control_iters;
287 size_t index = other._control_iter - other._control_iters.begin();
288 _control_iter = _control_iters.begin() + index;
295 MidiModel::MidiModel(MidiSource *s, size_t size)
296 : Automatable(s->session(), "midi model")
298 , _note_mode(Sustained)
301 , _end_iter(*this, DBL_MAX)
302 , _next_read(UINT32_MAX)
303 , _read_iter(*this, DBL_MAX)
306 assert(_end_iter._is_end);
307 assert( ! _end_iter._locked);
310 /** Read events in frame range \a start .. \a start+cnt into \a dst,
311 * adding \a stamp_offset to each event's timestamp.
312 * \return number of events written to \a dst
314 size_t MidiModel::read(MidiRingBuffer& dst, nframes_t start, nframes_t nframes,
315 nframes_t stamp_offset, nframes_t negative_stamp_offset) const
317 //cerr << this << " MM::read @ " << start << " frames: " << nframes << " -> " << stamp_offset << endl;
318 //cerr << this << " MM # notes: " << n_notes() << endl;
320 size_t read_events = 0;
322 if (start != _next_read) {
323 _read_iter = const_iterator(*this, (double)start);
324 //cerr << "Repositioning iterator from " << _next_read << " to " << start << endl;
326 //cerr << "Using cached iterator at " << _next_read << endl;
329 _next_read = start + nframes;
331 while (_read_iter != end() && _read_iter->time() < start + nframes) {
332 assert(_read_iter->size() > 0);
333 assert(_read_iter->buffer());
334 dst.write(_read_iter->time() + stamp_offset - negative_stamp_offset,
336 _read_iter->buffer());
338 //cerr << this << " MidiModel::read event @ " << _read_iter->time()
339 //<< " type: " << hex << int(_read_iter->type()) << dec
340 //<< " note: " << int(_read_iter->note())
341 //<< " velocity: " << int(_read_iter->velocity())
351 /** Write the controller event pointed to by \a iter to \a ev.
352 * Ev will have a newly allocated buffer containing the event.
354 boost::shared_ptr<MIDI::Event>
355 MidiModel::control_to_midi_event(const MidiControlIterator& iter) const
357 assert(iter.automation_list.get());
359 boost::shared_ptr<MIDI::Event> ev;
361 switch (iter.automation_list->parameter().type()) {
362 case MidiCCAutomation:
363 assert(iter.automation_list.get());
364 assert(iter.automation_list->parameter().channel() < 16);
365 assert(iter.automation_list->parameter().id() <= INT8_MAX);
366 assert(iter.y <= INT8_MAX);
368 ev = boost::shared_ptr<MIDI::Event>(new MIDI::Event(iter.x, 3, (uint8_t *)malloc(3), true));
369 ev->buffer()[0] = MIDI_CMD_CONTROL + iter.automation_list->parameter().channel();
370 ev->buffer()[1] = (Byte)iter.automation_list->parameter().id();
371 ev->buffer()[2] = (Byte)iter.y;
374 case MidiPgmChangeAutomation:
375 assert(iter.automation_list.get());
376 assert(iter.automation_list->parameter().channel() < 16);
377 assert(iter.automation_list->parameter().id() == 0);
378 assert(iter.y <= INT8_MAX);
380 ev = boost::shared_ptr<MIDI::Event>(new MIDI::Event(iter.x, 2, (uint8_t *)malloc(2), true));
381 ev->buffer()[0] = MIDI_CMD_PGM_CHANGE + iter.automation_list->parameter().channel();
382 ev->buffer()[1] = (Byte)iter.y;
385 case MidiPitchBenderAutomation:
386 assert(iter.automation_list.get());
387 assert(iter.automation_list->parameter().channel() < 16);
388 assert(iter.automation_list->parameter().id() == 0);
389 assert(iter.y < (1<<14));
391 ev = boost::shared_ptr<MIDI::Event>(new MIDI::Event(iter.x, 3, (uint8_t *)malloc(3), true));
392 ev->buffer()[0] = MIDI_CMD_BENDER + iter.automation_list->parameter().channel();
393 ev->buffer()[1] = ((Byte)iter.y) & 0x7F; // LSB
394 ev->buffer()[2] = (((Byte)iter.y) >> 7) & 0x7F; // MSB
397 case MidiChannelAftertouchAutomation:
398 assert(iter.automation_list.get());
399 assert(iter.automation_list->parameter().channel() < 16);
400 assert(iter.automation_list->parameter().id() == 0);
401 assert(iter.y <= INT8_MAX);
403 ev = boost::shared_ptr<MIDI::Event>(new MIDI::Event(iter.x, 2, (uint8_t *)malloc(2), true));
405 = MIDI_CMD_CHANNEL_PRESSURE + iter.automation_list->parameter().channel();
406 ev->buffer()[1] = (Byte)iter.y;
418 /** Clear all events from the model.
420 void MidiModel::clear()
427 _lock.writer_unlock();
431 /** Begin a write of events to the model.
433 * If \a mode is Sustained, complete notes with duration are constructed as note
434 * on/off events are received. Otherwise (Percussive), only note on events are
435 * stored; note off events are discarded entirely and all contained notes will
438 void MidiModel::start_write()
440 //cerr << "MM " << this << " START WRITE, MODE = " << enum_2_string(_note_mode) << endl;
443 for (int i = 0; i < 16; ++i)
444 _write_notes[i].clear();
446 _dirty_automations.clear();
450 /** Finish a write of events to the model.
452 * If \a delete_stuck is true and the current mode is Sustained, note on events
453 * that were never resolved with a corresonding note off will be deleted.
454 * Otherwise they will remain as notes with duration 0.
456 void MidiModel::end_write(bool delete_stuck)
461 //cerr << "MM " << this << " END WRITE: " << _notes.size() << " NOTES\n";
463 if (_note_mode == Sustained && delete_stuck) {
464 for (Notes::iterator n = _notes.begin(); n != _notes.end() ;) {
465 if ((*n)->duration() == 0) {
466 cerr << "WARNING: Stuck note lost: " << (*n)->note() << endl;
468 // we have to break here because erase invalidates the iterator
476 for (int i = 0; i < 16; ++i) {
477 if (!_write_notes[i].empty()) {
478 cerr << "WARNING: MidiModel::end_write: Channel " << i << " has "
479 << _write_notes[i].size() << " stuck notes" << endl;
481 _write_notes[i].clear();
484 for (AutomationLists::const_iterator i = _dirty_automations.begin(); i != _dirty_automations.end(); ++i) {
486 (*i)->lookup_cache().left = -1;
487 (*i)->search_cache().left = -1;
494 /** Append \a in_event to model. NOT realtime safe.
496 * Timestamps of events in \a buf are expected to be relative to
497 * the start of this model (t=0) and MUST be monotonically increasing
498 * and MUST be >= the latest event currently in the model.
500 void MidiModel::append(const MIDI::Event& ev)
505 assert(_notes.empty() || ev.time() >= _notes.back()->time());
508 if (ev.is_note_on()) {
509 append_note_on_unlocked(ev.channel(), ev.time(), ev.note(),
511 } else if (ev.is_note_off()) {
512 append_note_off_unlocked(ev.channel(), ev.time(), ev.note());
513 } else if (ev.is_cc()) {
514 append_automation_event_unlocked(MidiCCAutomation, ev.channel(),
515 ev.time(), ev.cc_number(), ev.cc_value());
516 } else if (ev.is_pgm_change()) {
517 append_automation_event_unlocked(MidiPgmChangeAutomation, ev.channel(),
518 ev.time(), ev.pgm_number(), 0);
519 } else if (ev.is_pitch_bender()) {
520 append_automation_event_unlocked(MidiPitchBenderAutomation,
521 ev.channel(), ev.time(), ev.pitch_bender_lsb(),
522 ev.pitch_bender_msb());
523 } else if (ev.is_channel_aftertouch()) {
524 append_automation_event_unlocked(MidiChannelAftertouchAutomation,
525 ev.channel(), ev.time(), ev.channel_aftertouch(), 0);
527 printf("WARNING: MidiModel: Unknown event type %X\n", ev.type());
533 void MidiModel::append_note_on_unlocked(uint8_t chan, double time,
534 uint8_t note_num, uint8_t velocity)
536 /*cerr << "MidiModel " << this << " chan " << (int)chan <<
537 " note " << (int)note_num << " on @ " << time << endl;*/
543 boost::shared_ptr<Note> new_note(new Note(chan, time, 0, note_num, velocity));
544 _notes.push_back(new_note);
545 if (_note_mode == Sustained) {
546 //cerr << "MM Sustained: Appending active note on " << (unsigned)(uint8_t)note_num << endl;
547 _write_notes[chan].push_back(_notes.size() - 1);
549 cerr << "MM Percussive: NOT appending active note on" << endl;
553 void MidiModel::append_note_off_unlocked(uint8_t chan, double time,
556 /*cerr << "MidiModel " << this << " chan " << (int)chan <<
557 " note " << (int)note_num << " off @ " << time << endl;*/
563 if (_note_mode == Percussive) {
564 cerr << "MidiModel Ignoring note off (percussive mode)" << endl;
568 /* FIXME: make _write_notes fixed size (127 noted) for speed */
570 /* FIXME: note off velocity for that one guy out there who actually has
571 * keys that send it */
573 bool resolved = false;
575 for (WriteNotes::iterator n = _write_notes[chan].begin(); n
576 != _write_notes[chan].end(); ++n) {
577 Note& note = *_notes[*n].get();
578 //cerr << (unsigned)(uint8_t)note.note() << " ? " << (unsigned)note_num << endl;
579 if (note.note() == note_num) {
580 assert(time >= note.time());
581 note.set_duration(time - note.time());
582 _write_notes[chan].erase(n);
583 //cerr << "MM resolved note, duration: " << note.duration() << endl;
590 cerr << "MidiModel " << this << " spurious note off chan " << (int)chan
591 << ", note " << (int)note_num << " @ " << time << endl;
595 void MidiModel::append_automation_event_unlocked(AutomationType type,
596 uint8_t chan, double time, uint8_t first_byte, uint8_t second_byte)
598 //cerr << "MidiModel " << this << " chan " << (int)chan <<
599 // " CC " << (int)number << " = " << (int)value << " @ " << time << endl;
609 case MidiCCAutomation:
611 value = double(second_byte);
613 case MidiChannelAftertouchAutomation:
614 case MidiPgmChangeAutomation:
616 value = double(first_byte);
618 case MidiPitchBenderAutomation:
620 value = double((0x7F & second_byte) << 7 | (0x7F & first_byte));
626 Parameter param(type, id, chan);
627 boost::shared_ptr<AutomationControl> control = Automatable::control(param, true);
628 control->list()->rt_add(time, value);
631 void MidiModel::add_note_unlocked(const boost::shared_ptr<Note> note)
633 //cerr << "MidiModel " << this << " add note " << (int)note.note() << " @ " << note.time() << endl;
635 Notes::iterator i = upper_bound(_notes.begin(), _notes.end(), note,
636 note_time_comparator);
637 _notes.insert(i, note);
640 void MidiModel::remove_note_unlocked(const boost::shared_ptr<const Note> note)
643 //cerr << "MidiModel " << this << " remove note " << (int)note.note() << " @ " << note.time() << endl;
644 for (Notes::iterator n = _notes.begin(); n != _notes.end(); ++n) {
646 const Note& _note = *note;
647 // TODO: There is still the issue, that after restarting ardour
648 // persisted undo does not work, because of rounding errors in the
649 // event times after saving/restoring to/from MIDI files
650 cerr << "======================================= " << endl;
651 cerr << int(_n.note()) << "@" << int(_n.time()) << "[" << int(_n.channel()) << "] --" << int(_n.duration()) << "-- #" << int(_n.velocity()) << endl;
652 cerr << int(_note.note()) << "@" << int(_note.time()) << "[" << int(_note.channel()) << "] --" << int(_note.duration()) << "-- #" << int(_note.velocity()) << endl;
653 cerr << "Equal: " << bool(_n == _note) << endl;
654 cerr << endl << endl;
657 // we have to break here, because erase invalidates all iterators, ie. n itself
663 /** Slow! for debugging only. */
665 bool MidiModel::is_sorted() const {
667 for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n)
668 if ((*n)->time() < t)
677 /** Start a new command.
679 * This has no side-effects on the model or Session, the returned command
680 * can be held on to for as long as the caller wishes, or discarded without
681 * formality, until apply_command is called and ownership is taken.
683 MidiModel::DeltaCommand* MidiModel::new_delta_command(const string name)
685 DeltaCommand* cmd = new DeltaCommand(_midi_source->model(), name);
691 * Ownership of cmd is taken, it must not be deleted by the caller.
692 * The command will constitute one item on the undo stack.
694 void MidiModel::apply_command(Command* cmd)
696 _session.begin_reversible_command(cmd->name());
699 _session.commit_reversible_command(cmd);
705 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
706 const std::string& name)
713 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
720 void MidiModel::DeltaCommand::add(const boost::shared_ptr<Note> note)
722 //cerr << "MEC: apply" << endl;
723 _removed_notes.remove(note);
724 _added_notes.push_back(note);
727 void MidiModel::DeltaCommand::remove(const boost::shared_ptr<Note> note)
729 //cerr << "MEC: remove" << endl;
730 _added_notes.remove(note);
731 _removed_notes.push_back(note);
734 void MidiModel::DeltaCommand::operator()()
736 // This could be made much faster by using a priority_queue for added and
737 // removed notes (or sort here), and doing a single iteration over _model
739 // Need to reset iterator to drop the read lock it holds, or we'll deadlock
740 const bool reset_iter = (_model->_read_iter.locked());
741 double iter_time = -1.0;
744 if (_model->_read_iter.get_event_pointer().get()) {
745 iter_time = _model->_read_iter->time();
747 cerr << "MidiModel::DeltaCommand::operator(): WARNING: _read_iter points to no event" << endl;
749 _model->_read_iter = _model->end(); // drop read lock
752 assert( ! _model->_read_iter.locked());
754 _model->write_lock();
756 for (std::list< boost::shared_ptr<Note> >::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
757 _model->add_note_unlocked(*i);
759 for (std::list< boost::shared_ptr<Note> >::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
760 _model->remove_note_unlocked(*i);
762 _model->write_unlock();
764 if (reset_iter && iter_time != -1.0) {
765 _model->_read_iter = const_iterator(*_model.get(), iter_time);
768 _model->ContentsChanged(); /* EMIT SIGNAL */
771 void MidiModel::DeltaCommand::undo()
773 // This could be made much faster by using a priority_queue for added and
774 // removed notes (or sort here), and doing a single iteration over _model
776 // Need to reset iterator to drop the read lock it holds, or we'll deadlock
777 const bool reset_iter = (_model->_read_iter.locked());
778 double iter_time = -1.0;
781 if (_model->_read_iter.get_event_pointer().get()) {
782 iter_time = _model->_read_iter->time();
784 cerr << "MidiModel::DeltaCommand::undo(): WARNING: _read_iter points to no event" << endl;
786 _model->_read_iter = _model->end(); // drop read lock
789 assert( ! _model->_read_iter.locked());
791 _model->write_lock();
793 for (std::list< boost::shared_ptr<Note> >::iterator i = _added_notes.begin(); i
794 != _added_notes.end(); ++i)
795 _model->remove_note_unlocked(*i);
797 for (std::list< boost::shared_ptr<Note> >::iterator i =
798 _removed_notes.begin(); i != _removed_notes.end(); ++i)
799 _model->add_note_unlocked(*i);
801 _model->write_unlock();
803 if (reset_iter && iter_time != -1.0) {
804 _model->_read_iter = const_iterator(*_model.get(), iter_time);
807 _model->ContentsChanged(); /* EMIT SIGNAL */
810 XMLNode & MidiModel::DeltaCommand::marshal_note(const boost::shared_ptr<Note> note)
812 XMLNode *xml_note = new XMLNode("note");
813 ostringstream note_str(ios::ate);
814 note_str << int(note->note());
815 xml_note->add_property("note", note_str.str());
817 ostringstream channel_str(ios::ate);
818 channel_str << int(note->channel());
819 xml_note->add_property("channel", channel_str.str());
821 ostringstream time_str(ios::ate);
822 time_str << int(note->time());
823 xml_note->add_property("time", time_str.str());
825 ostringstream duration_str(ios::ate);
826 duration_str <<(unsigned int) note->duration();
827 xml_note->add_property("duration", duration_str.str());
829 ostringstream velocity_str(ios::ate);
830 velocity_str << (unsigned int) note->velocity();
831 xml_note->add_property("velocity", velocity_str.str());
836 boost::shared_ptr<Note> MidiModel::DeltaCommand::unmarshal_note(XMLNode *xml_note)
839 istringstream note_str(xml_note->property("note")->value());
842 unsigned int channel;
843 istringstream channel_str(xml_note->property("channel")->value());
844 channel_str >> channel;
847 istringstream time_str(xml_note->property("time")->value());
850 unsigned int duration;
851 istringstream duration_str(xml_note->property("duration")->value());
852 duration_str >> duration;
854 unsigned int velocity;
855 istringstream velocity_str(xml_note->property("velocity")->value());
856 velocity_str >> velocity;
858 boost::shared_ptr<Note> note_ptr(new Note(channel, time, duration, note, velocity));
862 #define ADDED_NOTES_ELEMENT "added_notes"
863 #define REMOVED_NOTES_ELEMENT "removed_notes"
864 #define DELTA_COMMAND_ELEMENT "DeltaCommand"
866 int MidiModel::DeltaCommand::set_state(const XMLNode& delta_command)
868 if (delta_command.name() != string(DELTA_COMMAND_ELEMENT)) {
872 _added_notes.clear();
873 XMLNode *added_notes = delta_command.child(ADDED_NOTES_ELEMENT);
874 XMLNodeList notes = added_notes->children();
875 transform(notes.begin(), notes.end(), back_inserter(_added_notes),
876 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
878 _removed_notes.clear();
879 XMLNode *removed_notes = delta_command.child(REMOVED_NOTES_ELEMENT);
880 notes = removed_notes->children();
881 transform(notes.begin(), notes.end(), back_inserter(_removed_notes),
882 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
887 XMLNode& MidiModel::DeltaCommand::get_state()
889 XMLNode *delta_command = new XMLNode(DELTA_COMMAND_ELEMENT);
890 delta_command->add_property("midi_source", _model->midi_source()->id().to_s());
892 XMLNode *added_notes = delta_command->add_child(ADDED_NOTES_ELEMENT);
893 for_each(_added_notes.begin(), _added_notes.end(), sigc::compose(
894 sigc::mem_fun(*added_notes, &XMLNode::add_child_nocopy),
895 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
897 XMLNode *removed_notes = delta_command->add_child(REMOVED_NOTES_ELEMENT);
898 for_each(_removed_notes.begin(), _removed_notes.end(), sigc::compose(
899 sigc::mem_fun(*removed_notes, &XMLNode::add_child_nocopy),
900 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
902 return *delta_command;
905 struct EventTimeComparator {
906 typedef const MIDI::Event* value_type;
907 inline bool operator()(const MIDI::Event& a, const MIDI::Event& b) const {
908 return a.time() >= b.time();
912 /** Write the model to a MidiSource (i.e. save the model).
913 * This is different from manually using read to write to a source in that
914 * note off events are written regardless of the track mode. This is so the
915 * user can switch a recorded track (with note durations from some instrument)
916 * to percussive, save, reload, then switch it back to sustained without
917 * destroying the original note durations.
919 bool MidiModel::write_to(boost::shared_ptr<MidiSource> source)
923 const NoteMode old_note_mode = _note_mode;
924 _note_mode = Sustained;
926 for (const_iterator i = begin(); i != end(); ++i) {
927 source->append_event_unlocked(Frames, *i);
930 _note_mode = old_note_mode;
938 XMLNode& MidiModel::get_state()
940 XMLNode *node = new XMLNode("MidiModel");