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diff --git a/libs/evoral/src/Sequence.cpp b/libs/evoral/src/Sequence.cpp
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+/* This file is part of Evoral.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright (C) 2000-2008 Paul Davis
+ *
+ * Evoral 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 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Evoral 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 details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define __STDC_LIMIT_MACROS 1
+
+#include <iostream>
+#include <algorithm>
+#include <stdexcept>
+#include <stdint.h>
+#include <evoral/Sequence.hpp>
+#include <evoral/ControlList.hpp>
+#include <evoral/Control.hpp>
+#include <evoral/ControlSet.hpp>
+#include <evoral/EventSink.hpp>
+#include <evoral/MIDIParameters.hpp>
+
+using namespace std;
+
+namespace Evoral {
+
+void Sequence::write_lock() {
+ _lock.writer_lock();
+ _control_lock.lock();
+}
+
+void Sequence::write_unlock() {
+ _lock.writer_unlock();
+ _control_lock.unlock();
+}
+
+void Sequence::read_lock() const {
+ _lock.reader_lock();
+}
+
+void Sequence::read_unlock() const {
+ _lock.reader_unlock();
+}
+
+// Read iterator (const_iterator)
+
+Sequence::const_iterator::const_iterator(const Sequence& seq, double t)
+ : _seq(&seq)
+ , _is_end( (t == DBL_MAX) || seq.empty() )
+ , _locked( !_is_end )
+{
+ //cerr << "Created MIDI iterator @ " << t << " (is end: " << _is_end << ")" << endl;
+
+ if (_is_end) {
+ return;
+ }
+
+ seq.read_lock();
+
+ _note_iter = seq.notes().end();
+ // find first note which begins after t
+ for (Sequence::Notes::const_iterator i = seq.notes().begin(); i != seq.notes().end(); ++i) {
+ if ((*i)->time() >= t) {
+ _note_iter = i;
+ break;
+ }
+ }
+
+ ControlIterator earliest_control(boost::shared_ptr<ControlList>(), DBL_MAX, 0.0);
+
+ _control_iters.reserve(seq.controls().size());
+
+ // find the earliest control event available
+ for (Controls::const_iterator i = seq.controls().begin(); i != seq.controls().end(); ++i) {
+ double x, y;
+ bool ret = i->second->list()->rt_safe_earliest_event_unlocked(t, DBL_MAX, x, y);
+ if (!ret) {
+ //cerr << "MIDI Iterator: CC " << i->first.id() << " (size " << i->second->list()->size()
+ // << ") has no events past " << t << endl;
+ continue;
+ }
+
+ assert(x >= 0);
+
+ if (y < i->first.min() || y > i->first.max()) {
+ cerr << "ERROR: Controller (" << i->first.type() << ") value '" << y
+ << "' out of range [" << i->first.min() << "," << i->first.max()
+ << "], event ignored" << endl;
+ continue;
+ }
+
+ const ControlIterator new_iter(i->second->list(), x, y);
+
+ //cerr << "MIDI Iterator: CC " << i->first.id() << " added (" << x << ", " << y << ")" << endl;
+ _control_iters.push_back(new_iter);
+
+ // if the x of the current control is less than earliest_control
+ // we have a new earliest_control
+ if (x < earliest_control.x) {
+ earliest_control = new_iter;
+ _control_iter = _control_iters.end();
+ --_control_iter;
+ // now _control_iter points to the last Element in _control_iters
+ }
+ }
+
+ if (_note_iter != seq.notes().end()) {
+ _event = boost::shared_ptr<Event>(new Event((*_note_iter)->on_event(), true));
+ }
+
+ double time = DBL_MAX;
+ // in case we have no notes in the region, we still want to get controller messages
+ if (_event.get()) {
+ time = _event->time();
+ // if the note is going to make it this turn, advance _note_iter
+ if (earliest_control.x > time) {
+ _active_notes.push(*_note_iter);
+ ++_note_iter;
+ }
+ }
+
+ // <=, because we probably would want to send control events first
+ if (earliest_control.list.get() && earliest_control.x <= time) {
+ seq.control_to_midi_event(_event, earliest_control);
+ } else {
+ _control_iter = _control_iters.end();
+ }
+
+ if ( (! _event.get()) || _event->size() == 0) {
+ //cerr << "Created MIDI iterator @ " << t << " is at end." << endl;
+ _is_end = true;
+
+ // eliminate possible race condition here (ugly)
+ static Glib::Mutex mutex;
+ Glib::Mutex::Lock lock(mutex);
+ if (_locked) {
+ _seq->read_unlock();
+ _locked = false;
+ }
+ } else {
+ //printf("New MIDI Iterator = %X @ %lf\n", _event->type(), _event->time());
+ }
+
+ assert(_is_end || (_event->buffer() && _event->buffer()[0] != '\0'));
+}
+
+Sequence::const_iterator::~const_iterator()
+{
+ if (_locked) {
+ _seq->read_unlock();
+ }
+}
+
+const Sequence::const_iterator& Sequence::const_iterator::operator++()
+{
+ if (_is_end) {
+ throw std::logic_error("Attempt to iterate past end of Sequence");
+ }
+
+ assert(_event->buffer() && _event->buffer()[0] != '\0');
+
+ /*cerr << "const_iterator::operator++: " << _event->to_string() << endl;*/
+
+ if (! (_event->is_note() || _event->is_cc() || _event->is_pgm_change() || _event->is_pitch_bender() || _event->is_channel_aftertouch()) ) {
+ cerr << "FAILED event buffer: " << hex << int(_event->buffer()[0]) << int(_event->buffer()[1]) << int(_event->buffer()[2]) << endl;
+ }
+ assert((_event->is_note() || _event->is_cc() || _event->is_pgm_change() || _event->is_pitch_bender() || _event->is_channel_aftertouch()));
+
+ // Increment past current control event
+ if (!_event->is_note() && _control_iter != _control_iters.end() && _control_iter->list.get()) {
+ double x = 0.0, y = 0.0;
+ const bool ret = _control_iter->list->rt_safe_earliest_event_unlocked(
+ _control_iter->x, DBL_MAX, x, y, false);
+
+ if (ret) {
+ _control_iter->x = x;
+ _control_iter->y = y;
+ } else {
+ _control_iter->list.reset();
+ _control_iter->x = DBL_MAX;
+ }
+ }
+
+ const std::vector<ControlIterator>::iterator old_control_iter = _control_iter;
+ _control_iter = _control_iters.begin();
+
+ // find the _control_iter with the earliest event time
+ for (std::vector<ControlIterator>::iterator i = _control_iters.begin();
+ i != _control_iters.end(); ++i) {
+ if (i->x < _control_iter->x) {
+ _control_iter = i;
+ }
+ }
+
+ enum Type {NIL, NOTE_ON, NOTE_OFF, AUTOMATION};
+
+ Type type = NIL;
+ double t = 0;
+
+ // Next earliest note on
+ if (_note_iter != _seq->notes().end()) {
+ type = NOTE_ON;
+ t = (*_note_iter)->time();
+ }
+
+ // Use the next earliest note off iff it's earlier than the note on
+ if (!_seq->percussive() && (! _active_notes.empty())) {
+ if (type == NIL || _active_notes.top()->end_time() <= (*_note_iter)->time()) {
+ type = NOTE_OFF;
+ t = _active_notes.top()->end_time();
+ }
+ }
+
+ // Use the next earliest controller iff it's earlier than the note event
+ if (_control_iter != _control_iters.end() && _control_iter->x != DBL_MAX /*&& _control_iter != old_control_iter */) {
+ if (type == NIL || _control_iter->x < t) {
+ type = AUTOMATION;
+ }
+ }
+
+ if (type == NOTE_ON) {
+ //cerr << "********** MIDI Iterator = note on" << endl;
+ *_event = (*_note_iter)->on_event();
+ _active_notes.push(*_note_iter);
+ ++_note_iter;
+ } else if (type == NOTE_OFF) {
+ //cerr << "********** MIDI Iterator = note off" << endl;
+ *_event = _active_notes.top()->off_event();
+ _active_notes.pop();
+ } else if (type == AUTOMATION) {
+ //cerr << "********** MIDI Iterator = Automation" << endl;
+ _seq->control_to_midi_event(_event, *_control_iter);
+ } else {
+ //cerr << "********** MIDI Iterator = End" << endl;
+ _is_end = true;
+ }
+
+ assert(_is_end || _event->size() > 0);
+
+ return *this;
+}
+
+bool Sequence::const_iterator::operator==(const const_iterator& other) const
+{
+ if (_is_end || other._is_end) {
+ return (_is_end == other._is_end);
+ } else {
+ return (_event == other._event);
+ }
+}
+
+Sequence::const_iterator& Sequence::const_iterator::operator=(const const_iterator& other)
+{
+ if (_locked && _seq != other._seq) {
+ _seq->read_unlock();
+ }
+
+ _seq = other._seq;
+ _active_notes = other._active_notes;
+ _is_end = other._is_end;
+ _locked = other._locked;
+ _note_iter = other._note_iter;
+ _control_iters = other._control_iters;
+ size_t index = other._control_iter - other._control_iters.begin();
+ _control_iter = _control_iters.begin() + index;
+
+ if (!_is_end) {
+ _event = boost::shared_ptr<Event>(new Event(*other._event, true));
+ }
+
+ return *this;
+}
+
+// Sequence
+
+Sequence::Sequence(size_t size)
+ : _read_iter(*this, DBL_MAX)
+ , _edited(false)
+ , _notes(size)
+ , _writing(false)
+ , _end_iter(*this, DBL_MAX)
+ , _next_read(UINT32_MAX)
+ , _percussive(false)
+{
+ assert(_end_iter._is_end);
+ assert( ! _end_iter._locked);
+}
+
+/** Read events in frame range \a start .. \a start+cnt into \a dst,
+ * adding \a offset to each event's timestamp.
+ * \return number of events written to \a dst
+ */
+size_t Sequence::read(EventSink& dst, timestamp_t start, timestamp_t nframes, timedur_t offset) const
+{
+ //cerr << this << " MM::read @ " << start << " frames: " << nframes << " -> " << stamp_offset << endl;
+ //cerr << this << " MM # notes: " << n_notes() << endl;
+
+ size_t read_events = 0;
+
+ if (start != _next_read) {
+ _read_iter = const_iterator(*this, (double)start);
+ //cerr << "Repositioning iterator from " << _next_read << " to " << start << endl;
+ } else {
+ //cerr << "Using cached iterator at " << _next_read << endl;
+ }
+
+ _next_read = start + nframes;
+
+ while (_read_iter != end() && _read_iter->time() < start + nframes) {
+ assert(_read_iter->size() > 0);
+ assert(_read_iter->buffer());
+ dst.write(_read_iter->time() + offset,
+ _read_iter->size(),
+ _read_iter->buffer());
+
+ /*cerr << this << " Sequence::read event @ " << _read_iter->time()
+ << " type: " << hex << int(_read_iter->type()) << dec
+ << " note: " << int(_read_iter->note())
+ << " velocity: " << int(_read_iter->velocity())
+ << endl;*/
+
+ ++_read_iter;
+ ++read_events;
+ }
+
+ return read_events;
+}
+
+/** Write the controller event pointed to by \a iter to \a ev.
+ * The buffer of \a ev will be allocated or resized as necessary.
+ * \return true on success
+ */
+bool
+Sequence::control_to_midi_event(boost::shared_ptr<Event>& ev, const ControlIterator& iter) const
+{
+ assert(iter.list.get());
+ if (!ev) {
+ ev = boost::shared_ptr<Event>(new Event(0, 3, NULL, true));
+ }
+
+ switch (iter.list->parameter().type()) {
+ case midi_cc_type:
+ assert(iter.list.get());
+ assert(iter.list->parameter().channel() < 16);
+ assert(iter.list->parameter().id() <= INT8_MAX);
+ assert(iter.y <= INT8_MAX);
+
+ ev->time() = iter.x;
+ ev->realloc(3);
+ ev->buffer()[0] = MIDI_CMD_CONTROL + iter.list->parameter().channel();
+ ev->buffer()[1] = (uint8_t)iter.list->parameter().id();
+ ev->buffer()[2] = (uint8_t)iter.y;
+ break;
+
+ case midi_pc_type:
+ assert(iter.list.get());
+ assert(iter.list->parameter().channel() < 16);
+ assert(iter.list->parameter().id() == 0);
+ assert(iter.y <= INT8_MAX);
+
+ ev->time() = iter.x;
+ ev->realloc(2);
+ ev->buffer()[0] = MIDI_CMD_PGM_CHANGE + iter.list->parameter().channel();
+ ev->buffer()[1] = (uint8_t)iter.y;
+ break;
+
+ case midi_pb_type:
+ assert(iter.list.get());
+ assert(iter.list->parameter().channel() < 16);
+ assert(iter.list->parameter().id() == 0);
+ assert(iter.y < (1<<14));
+
+ ev->time() = iter.x;
+ ev->realloc(3);
+ ev->buffer()[0] = MIDI_CMD_BENDER + iter.list->parameter().channel();
+ ev->buffer()[1] = uint16_t(iter.y) & 0x7F; // LSB
+ ev->buffer()[2] = (uint16_t(iter.y) >> 7) & 0x7F; // MSB
+ break;
+
+ case midi_ca_type:
+ assert(iter.list.get());
+ assert(iter.list->parameter().channel() < 16);
+ assert(iter.list->parameter().id() == 0);
+ assert(iter.y <= INT8_MAX);
+
+ ev->time() = iter.x;
+ ev->realloc(2);
+ ev->buffer()[0] = MIDI_CMD_CHANNEL_PRESSURE + iter.list->parameter().channel();
+ ev->buffer()[1] = (uint8_t)iter.y;
+ break;
+
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+
+/** Clear all events from the model.
+ */
+void Sequence::clear()
+{
+ _lock.writer_lock();
+ _notes.clear();
+ for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
+ li->second->list()->clear();
+ _next_read = 0;
+ _read_iter = end();
+ _lock.writer_unlock();
+}
+
+
+/** Begin a write of events to the model.
+ *
+ * If \a mode is Sustained, complete notes with duration are constructed as note
+ * on/off events are received. Otherwise (Percussive), only note on events are
+ * stored; note off events are discarded entirely and all contained notes will
+ * have duration 0.
+ */
+void Sequence::start_write()
+{
+ //cerr << "MM " << this << " START WRITE, PERCUSSIVE = " << _percussive << endl;
+ write_lock();
+ _writing = true;
+ for (int i = 0; i < 16; ++i)
+ _write_notes[i].clear();
+
+ _dirty_controls.clear();
+ write_unlock();
+}
+
+/** Finish a write of events to the model.
+ *
+ * If \a delete_stuck is true and the current mode is Sustained, note on events
+ * that were never resolved with a corresonding note off will be deleted.
+ * Otherwise they will remain as notes with duration 0.
+ */
+void Sequence::end_write(bool delete_stuck)
+{
+ write_lock();
+ assert(_writing);
+
+ //cerr << "MM " << this << " END WRITE: " << _notes.size() << " NOTES\n";
+
+ if (!_percussive && delete_stuck) {
+ for (Notes::iterator n = _notes.begin(); n != _notes.end() ;) {
+ if ((*n)->duration() == 0) {
+ cerr << "WARNING: Stuck note lost: " << (*n)->note() << endl;
+ n = _notes.erase(n);
+ // we have to break here because erase invalidates the iterator
+ break;
+ } else {
+ ++n;
+ }
+ }
+ }
+
+ for (int i = 0; i < 16; ++i) {
+ if (!_write_notes[i].empty()) {
+ cerr << "WARNING: Sequence::end_write: Channel " << i << " has "
+ << _write_notes[i].size() << " stuck notes" << endl;
+ }
+ _write_notes[i].clear();
+ }
+
+ for (ControlLists::const_iterator i = _dirty_controls.begin(); i != _dirty_controls.end(); ++i) {
+ (*i)->mark_dirty();
+ }
+
+ _writing = false;
+ write_unlock();
+}
+
+/** Append \a ev to model. NOT realtime safe.
+ *
+ * Timestamps of events in \a buf are expected to be relative to
+ * the start of this model (t=0) and MUST be monotonically increasing
+ * and MUST be >= the latest event currently in the model.
+ */
+void Sequence::append(const Event& ev)
+{
+ write_lock();
+ _edited = true;
+
+ assert(_notes.empty() || ev.time() >= _notes.back()->time());
+ assert(_writing);
+
+ if (ev.is_note_on()) {
+ append_note_on_unlocked(ev.channel(), ev.time(), ev.note(),
+ ev.velocity());
+ } else if (ev.is_note_off()) {
+ append_note_off_unlocked(ev.channel(), ev.time(), ev.note());
+ } else if (ev.is_cc()) {
+ append_control_unlocked(
+ Evoral::MIDI::ContinuousController(midi_cc_type, ev.cc_number(), ev.channel()),
+ ev.time(), ev.cc_value());
+ } else if (ev.is_pgm_change()) {
+ append_control_unlocked(
+ Evoral::MIDI::ProgramChange(midi_pc_type, ev.channel()),
+ ev.time(), ev.pgm_number());
+ } else if (ev.is_pitch_bender()) {
+ append_control_unlocked(
+ Evoral::MIDI::PitchBender(midi_pb_type, ev.channel()),
+ ev.time(), double( (0x7F & ev.pitch_bender_msb()) << 7
+ | (0x7F & ev.pitch_bender_lsb()) ));
+ } else if (ev.is_channel_aftertouch()) {
+ append_control_unlocked(
+ Evoral::MIDI::ChannelAftertouch(midi_ca_type, ev.channel()),
+ ev.time(), ev.channel_aftertouch());
+ } else {
+ printf("WARNING: Sequence: Unknown event type %X\n", ev.type());
+ }
+
+ write_unlock();
+}
+
+void Sequence::append_note_on_unlocked(uint8_t chan, double time,
+ uint8_t note_num, uint8_t velocity)
+{
+ /*cerr << "Sequence " << this << " chan " << (int)chan <<
+ " note " << (int)note_num << " on @ " << time << endl;*/
+
+ assert(note_num <= 127);
+ assert(chan < 16);
+ assert(_writing);
+ _edited = true;
+
+ boost::shared_ptr<Note> new_note(new Note(chan, time, 0, note_num, velocity));
+ _notes.push_back(new_note);
+ if (!_percussive) {
+ //cerr << "MM Sustained: Appending active note on " << (unsigned)(uint8_t)note_num << endl;
+ _write_notes[chan].push_back(_notes.size() - 1);
+ }/* else {
+ cerr << "MM Percussive: NOT appending active note on" << endl;
+ }*/
+}
+
+void Sequence::append_note_off_unlocked(uint8_t chan, double time,
+ uint8_t note_num)
+{
+ /*cerr << "Sequence " << this << " chan " << (int)chan <<
+ " note " << (int)note_num << " off @ " << time << endl;*/
+
+ assert(note_num <= 127);
+ assert(chan < 16);
+ assert(_writing);
+ _edited = true;
+
+ if (_percussive) {
+ cerr << "Sequence Ignoring note off (percussive mode)" << endl;
+ return;
+ }
+
+ /* FIXME: make _write_notes fixed size (127 noted) for speed */
+
+ /* FIXME: note off velocity for that one guy out there who actually has
+ * keys that send it */
+
+ bool resolved = false;
+
+ for (WriteNotes::iterator n = _write_notes[chan].begin(); n
+ != _write_notes[chan].end(); ++n) {
+ Note& note = *_notes[*n].get();
+ if (note.note() == note_num) {
+ assert(time >= note.time());
+ note.set_duration(time - note.time());
+ _write_notes[chan].erase(n);
+ //cerr << "MM resolved note, duration: " << note.duration() << endl;
+ resolved = true;
+ break;
+ }
+ }
+
+ if (!resolved) {
+ cerr << "Sequence " << this << " spurious note off chan " << (int)chan
+ << ", note " << (int)note_num << " @ " << time << endl;
+ }
+}
+
+void Sequence::append_control_unlocked(Parameter param, double time, double value)
+{
+ control(param, true)->list()->rt_add(time, value);
+}
+
+
+void Sequence::add_note_unlocked(const boost::shared_ptr<Note> note)
+{
+ //cerr << "Sequence " << this << " add note " << (int)note.note() << " @ " << note.time() << endl;
+ _edited = true;
+ Notes::iterator i = upper_bound(_notes.begin(), _notes.end(), note,
+ note_time_comparator);
+ _notes.insert(i, note);
+}
+
+void Sequence::remove_note_unlocked(const boost::shared_ptr<const Note> note)
+{
+ _edited = true;
+ //cerr << "Sequence " << this << " remove note " << (int)note.note() << " @ " << note.time() << endl;
+ for (Notes::iterator n = _notes.begin(); n != _notes.end(); ++n) {
+ Note& _n = *(*n);
+ const Note& _note = *note;
+ // TODO: There is still the issue, that after restarting ardour
+ // persisted undo does not work, because of rounding errors in the
+ // event times after saving/restoring to/from MIDI files
+ /*cerr << "======================================= " << endl;
+ cerr << int(_n.note()) << "@" << int(_n.time()) << "[" << int(_n.channel()) << "] --" << int(_n.duration()) << "-- #" << int(_n.velocity()) << endl;
+ cerr << int(_note.note()) << "@" << int(_note.time()) << "[" << int(_note.channel()) << "] --" << int(_note.duration()) << "-- #" << int(_note.velocity()) << endl;
+ cerr << "Equal: " << bool(_n == _note) << endl;
+ cerr << endl << endl;*/
+ if (_n == _note) {
+ _notes.erase(n);
+ // we have to break here, because erase invalidates all iterators, ie. n itself
+ break;
+ }
+ }
+}
+
+/** Slow! for debugging only. */
+#ifndef NDEBUG
+bool Sequence::is_sorted() const {
+ bool t = 0;
+ for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n)
+ if ((*n)->time() < t)
+ return false;
+ else
+ t = (*n)->time();
+
+ return true;
+}
+#endif
+
+} // namespace Evoral
+
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