*/
+#define __STDC_LIMIT_MACROS 1
+
#include <iostream>
#include <algorithm>
-#include <queue>
+#include <stdexcept>
+#include <stdint.h>
#include <pbd/enumwriter.h>
#include <ardour/midi_model.h>
#include <ardour/midi_events.h>
+#include <ardour/midi_source.h>
#include <ardour/types.h>
#include <ardour/session.h>
using namespace std;
using namespace ARDOUR;
-// Note
-MidiModel::Note::Note(double t, double d, uint8_t n, uint8_t v)
- : _on_event(t, 3, NULL, true)
- , _off_event(t + d, 3, NULL, true)
+// Read iterator (const_iterator)
+
+MidiModel::const_iterator::const_iterator(const MidiModel& model, double t)
+ : _model(&model)
+ , _is_end( (t == DBL_MAX) || model.empty())
+ , _locked( ! _is_end)
{
- _on_event.buffer()[0] = MIDI_CMD_NOTE_ON;
- _on_event.buffer()[1] = n;
- _on_event.buffer()[2] = v;
+ //cerr << "Created MIDI iterator @ " << t << "(is end: " << _is_end << ")" << endl;
- _off_event.buffer()[0] = MIDI_CMD_NOTE_OFF;
- _off_event.buffer()[1] = n;
- _off_event.buffer()[2] = 0x40;
+ if (_is_end)
+ return;
+
+ model.read_lock();
- assert(time() == t);
- assert(duration() == d);
- assert(note() == n);
- assert(velocity() == v);
+ _note_iter = model.notes().end();
+
+ for (MidiModel::Notes::const_iterator i = model.notes().begin(); i != model.notes().end(); ++i) {
+ if ((*i).time() >= t) {
+ _note_iter = i;
+ break;
+ }
+ }
+
+ MidiControlIterator earliest_control = make_pair(boost::shared_ptr<AutomationList>(),
+ make_pair(DBL_MAX, 0.0));
+
+ _control_iters.reserve(model.controls().size());
+ for (Automatable::Controls::const_iterator i = model.controls().begin();
+ i != model.controls().end(); ++i) {
+
+ assert(i->first.type() == MidiCCAutomation);
+
+ 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);
+ assert(y >= 0);
+ assert(y <= UINT8_MAX);
+
+ const MidiControlIterator new_iter = make_pair(i->second->list(), make_pair(x, y));
+
+ //cerr << "MIDI Iterator: CC " << i->first.id() << " added (" << x << ", " << y << ")" << endl;
+ _control_iters.push_back(new_iter);
+
+ if (x < earliest_control.second.first) {
+ earliest_control = new_iter;
+ _control_iter = _control_iters.end();
+ --_control_iter;
+ }
+ }
+
+ if (_note_iter != model.notes().end()) {
+ _event = MidiEvent(_note_iter->on_event(), false);
+ ++_note_iter;
+ }
+
+ if (earliest_control.first && earliest_control.second.first < _event.time())
+ model.control_to_midi_event(_event, earliest_control);
+ else
+ _control_iter = _control_iters.end();
+
+ if (_event.size() == 0) {
+ //cerr << "Created MIDI iterator @ " << t << " is at end." << endl;
+ _is_end = true;
+ _model->read_unlock();
+ _locked = false;
+ //} else {
+ // printf("MIDI Iterator = %X @ %lf\n", _event.type(), _event.time());
+ }
}
-MidiModel::Note::Note(const Note& copy)
- : _on_event(copy._on_event, true)
- , _off_event(copy._off_event, true)
+MidiModel::const_iterator::~const_iterator()
{
- /*
- assert(copy._on_event.size == 3);
- _on_event.buffer = _on_event_buffer;
- memcpy(_on_event_buffer, copy._on_event_buffer, 3);
-
- assert(copy._off_event.size == 3);
- _off_event.buffer = _off_event_buffer;
- memcpy(_off_event_buffer, copy._off_event_buffer, 3);
- */
-
- assert(time() == copy.time());
- assert(end_time() == copy.end_time());
- assert(note() == copy.note());
- assert(velocity() == copy.velocity());
- assert(duration() == copy.duration());
+ if (_locked)
+ _model->read_unlock();
}
+
-
-const MidiModel::Note&
-MidiModel::Note::operator=(const Note& copy)
+const MidiModel::const_iterator&
+MidiModel::const_iterator::operator++()
{
- _on_event = copy._on_event;
- _off_event = copy._off_event;
- /*_on_event.time = copy._on_event.time;
- assert(copy._on_event.size == 3);
- memcpy(_on_event_buffer, copy._on_event_buffer, 3);
+ if (_is_end)
+ throw std::logic_error("Attempt to iterate past end of MidiModel");
+
+ assert(_event.is_note() || _event.is_cc());
+
+ // Increment past current control event
+ if (_control_iter != _control_iters.end() && _control_iter->first && _event.is_cc()) {
+ double x, y;
+ const bool ret = _control_iter->first->rt_safe_earliest_event_unlocked(
+ _control_iter->second.first, DBL_MAX, x, y, false);
+
+ if (ret) {
+ //cerr << "Incremented " << _control_iter->first->parameter().id() << " to " << x << endl;
+ _control_iter->second.first = x;
+ _control_iter->second.second = y;
+ } else {
+ //cerr << "Hit end of " << _control_iter->first->parameter().id() << endl;
+ _control_iter->first.reset();
+ _control_iter->second.first = DBL_MAX;
+ }
+ }
+
+ // Now find and point at the earliest event
+
+ _control_iter = _control_iters.begin();
+
+ for (std::vector<MidiControlIterator>::iterator i = _control_iters.begin();
+ i != _control_iters.end(); ++i) {
+ if (i->second.first < _control_iter->second.first) {
+ _control_iter = i;
+ }
+ }
- _off_event.time = copy._off_event.time;
- assert(copy._off_event.size == 3);
- memcpy(_off_event_buffer, copy._off_event_buffer, 3);
- */
+ enum Type { NIL, NOTE, CC };
+ Type type = NIL;
+
+ if (_note_iter != _model->notes().end())
+ type = NOTE;
- assert(time() == copy.time());
- assert(end_time() == copy.end_time());
- assert(note() == copy.note());
- assert(velocity() == copy.velocity());
- assert(duration() == copy.duration());
+ if (_control_iter != _control_iters.end() && _control_iter->second.first != DBL_MAX)
+ if (_note_iter == _model->notes().end() || _control_iter->second.first < _note_iter->time())
+ type = CC;
+
+ if (type == NOTE) {
+ //cerr << "MIDI Iterator = note" << endl;
+ _event = MidiEvent(_note_iter->on_event(), false);
+ ++_note_iter;
+ } else if (type == CC) {
+ //cerr << "MIDI Iterator = CC" << endl;
+ _model->control_to_midi_event(_event, *_control_iter);
+ } else {
+ //cerr << "MIDI Iterator = NIL" << endl;
+ _is_end = true;
+ _model->read_unlock();
+ _locked = false;
+ }
return *this;
}
+
+
+bool
+MidiModel::const_iterator::operator==(const const_iterator& other) const
+{
+ if (_is_end)
+ if (other._is_end)
+ return true;
+ else
+ return false;
+ else
+ return (_event == other._event);
+}
+
// MidiModel
MidiModel::MidiModel(Session& s, size_t size)
- : _session(s)
+ : Automatable(s, "midi model")
, _notes(size)
, _note_mode(Sustained)
, _writing(false)
+ , _edited(false)
+ //, _active_notes(LaterNoteEndComparator())
+ , _end_iter(*this, DBL_MAX)
+ , _next_read(UINT32_MAX)
+ , _read_iter(*this, DBL_MAX)
{
}
* \return number of events written to \a dst
*/
size_t
-MidiModel::read (MidiRingBuffer& dst, nframes_t start, nframes_t nframes, nframes_t stamp_offset) const
+MidiModel::read(MidiRingBuffer& dst, nframes_t start, nframes_t nframes, nframes_t stamp_offset) const
{
size_t read_events = 0;
- //cerr << "MM READ @ " << start << " + " << nframes << endl;
+ 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;
+ }
- /* FIXME: cache last lookup value to avoid the search */
+ _next_read = start + nframes;
+
+ while (_read_iter != end() && _read_iter->time() < start + nframes) {
+ dst.write(_read_iter->time() + stamp_offset, _read_iter->size(), _read_iter->buffer());
+ ++_read_iter;
+ ++read_events;
+ }
+
+#if 0
+ /* FIXME: cache last lookup value to avoid O(n) search every time */
if (_note_mode == Sustained) {
- LaterNoteEndComparator cmp;
- priority_queue<const Note*,vector<const Note*>,LaterNoteEndComparator> active_notes(cmp);
- /* FIXME: cache last lookup value to avoid the search */
for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n) {
-
- //cerr << "MM ON " << n->time() << endl;
+
+ while ( ! _active_notes.empty() ) {
+ const Note* const earliest_off = _active_notes.top();
+ const MidiEvent& off_ev = earliest_off->off_event();
+ if (off_ev.time() < start + nframes && off_ev.time() <= n->time()) {
+ dst.write(off_ev.time() + stamp_offset, off_ev.size(), off_ev.buffer());
+ _active_notes.pop();
+ ++read_events;
+ } else {
+ break;
+ }
+ }
if (n->time() >= start + nframes)
break;
- while ( ! active_notes.empty() ) {
- const Note* const earliest_off = active_notes.top();
- const MidiEvent& ev = earliest_off->off_event();
- if (ev.time() < start + nframes && ev.time() <= n->time()) {
+ // Note on
+ if (n->time() >= start) {
+ const MidiEvent& on_ev = n->on_event();
+ dst.write(on_ev.time() + stamp_offset, on_ev.size(), on_ev.buffer());
+ _active_notes.push(&(*n));
+ ++read_events;
+ }
+
+ }
+
+ // Write any trailing note offs
+ while ( ! _active_notes.empty() ) {
+ const Note* const earliest_off = _active_notes.top();
+ const MidiEvent& off_ev = earliest_off->off_event();
+ if (off_ev.time() < start + nframes) {
+ dst.write(off_ev.time() + stamp_offset, off_ev.size(), off_ev.buffer());
+ _active_notes.pop();
+ ++read_events;
+ } else {
+ break;
+ }
+ }
+
+ // Percussive
+ } else {
+ for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n) {
+ // Note on
+ if (n->time() >= start) {
+ if (n->time() < start + nframes) {
+ const MidiEvent& ev = n->on_event();
dst.write(ev.time() + stamp_offset, ev.size(), ev.buffer());
- active_notes.pop();
++read_events;
} else {
break;
}
}
+ }
+ }
+#endif
+ return read_events;
+}
+
+
+bool
+MidiModel::control_to_midi_event(MidiEvent& ev, const MidiControlIterator& iter) const
+{
+ if (iter.first->parameter().type() == MidiCCAutomation) {
+ if (ev.size() < 3)
+ ev.set_buffer((Byte*)malloc(3), true);
+
+ assert(iter.first);
+ assert(iter.first->parameter().id() <= INT8_MAX);
+ assert(iter.second.second <= INT8_MAX);
+ ev.buffer()[0] = MIDI_CMD_CONTROL;
+ ev.buffer()[1] = (Byte)iter.first->parameter().id();
+ ev.buffer()[2] = (Byte)iter.second.second;
+ ev.time() = iter.second.first; // x
+ ev.size() = 3;
+ return true;
+ } else {
+ return false;
+ }
+}
+
+
+/** Return the earliest MIDI event in the given range.
+ *
+ * \return true if \a output has been set to the earliest event in the given range.
+ */
+#if 0
+bool
+MidiModel::earliest_note_event(MidiEvent& output, nframes_t start, nframes_t nframes) const
+{
+ /* FIXME: cache last lookup value to avoid O(n) search every time */
+
+ const Note* const earliest_on = NULL;
+ const Note* const earliest_off = NULL;
+ const MidiEvent* const earliest_cc = NULL;
+
+ /* Notes */
+
+ if (_note_mode == Sustained) {
+
+ for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n) {
+
+ if ( ! _active_notes.empty() ) {
+ const Note* const earliest_off = _active_notes.top();
+ const MidiEvent& off_ev = earliest_off->off_event();
+ if (off_ev.time() < start + nframes && off_ev.time() <= n->time()) {
+ output = off_ev;
+ //dst.write(off_ev.time() + stamp_offset, off_ev.size(), off_ev.buffer());
+ _active_notes.pop();
+ return true;
+ }
+ }
+
+ if (n->time() >= start + nframes)
+ break;
// Note on
if (n->time() >= start) {
- const MidiEvent& ev = n->on_event();
- dst.write(ev.time() + stamp_offset, ev.size(), ev.buffer());
- active_notes.push(&(*n));
- ++read_events;
+ earliest_on = &n->on_event();
+ //dst.write(on_ev.time() + stamp_offset, on_ev.size(), on_ev.buffer());
+ _active_notes.push(&(*n));
+ return true;
}
}
+
+ // Write any trailing note offs
+ while ( ! _active_notes.empty() ) {
+ const Note* const earliest_off = _active_notes.top();
+ const MidiEvent& off_ev = earliest_off->off_event();
+ if (off_ev.time() < start + nframes) {
+ dst.write(off_ev.time() + stamp_offset, off_ev.size(), off_ev.buffer());
+ _active_notes.pop();
+ ++read_events;
+ } else {
+ break;
+ }
+ }
// Percussive
} else {
}
}
- //if (read_events > 0)
- // cerr << "MM READ " << read_events << " EVENTS" << endl;
-
return read_events;
}
-
+#endif
/** Begin a write of events to the model.
*
void
MidiModel::start_write()
{
- //cerr << "MM START WRITE, MODE = " << enum_2_string(_note_mode) << endl;
- _write_notes.clear();
+ //cerr << "MM " << this << " START WRITE, MODE = " << enum_2_string(_note_mode) << endl;
+ write_lock();
_writing = true;
+ _write_notes.clear();
+ write_unlock();
}
void
MidiModel::end_write(bool delete_stuck)
{
+ write_lock();
assert(_writing);
- //cerr << "MM END WRITE\n";
+ //cerr << "MM " << this << " END WRITE: " << _notes.size() << " NOTES\n";
if (_note_mode == Sustained && delete_stuck) {
for (Notes::iterator n = _notes.begin(); n != _notes.end() ; ) {
_write_notes.clear();
_writing = false;
-}
-
-
-/** Append contents of \a buf 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.
- *
- * Events in buf are deep copied.
- */
-void
-MidiModel::append(const MidiBuffer& buf)
-{
- assert(_writing);
-
- for (MidiBuffer::const_iterator i = buf.begin(); i != buf.end(); ++i) {
- const MidiEvent& ev = *i;
-
- assert(_notes.empty() || ev.time() >= _notes.back().time());
-
- if (ev.type() == MIDI_CMD_NOTE_ON)
- append_note_on(ev.time(), ev.note(), ev.velocity());
- else if (ev.type() == MIDI_CMD_NOTE_OFF)
- append_note_off(ev.time(), ev.note());
- }
+ write_unlock();
}
* and MUST be >= the latest event currently in the model.
*/
void
-MidiModel::append(double time, size_t size, const Byte* buf)
+MidiModel::append(const MidiEvent& ev)
{
- assert(_notes.empty() || time >= _notes.back().time());
+ write_lock();
+
+ assert(_notes.empty() || ev.time() >= _notes.back().time());
assert(_writing);
- if ((buf[0] & 0xF0) == MIDI_CMD_NOTE_ON)
- append_note_on(time, buf[1], buf[2]);
- else if ((buf[0] & 0xF0) == MIDI_CMD_NOTE_OFF)
- append_note_off(time, buf[1]);
+ if (ev.is_note_on())
+ append_note_on_unlocked(ev.time(), ev.note(), ev.velocity());
+ else if (ev.is_note_off())
+ append_note_off_unlocked(ev.time(), ev.note());
+ else if (ev.is_cc())
+ append_cc_unlocked(ev.time(), ev.cc_number(), ev.cc_value());
+ else
+ printf("MM Unknown event type %X\n", ev.type());
+
+ write_unlock();
}
void
-MidiModel::append_note_on(double time, uint8_t note_num, uint8_t velocity)
+MidiModel::append_note_on_unlocked(double time, uint8_t note_num, uint8_t velocity)
{
+ //cerr << "MidiModel " << this << " note " << (int)note_num << " on @ " << time << endl;
+
assert(_writing);
_notes.push_back(Note(time, 0, note_num, velocity));
if (_note_mode == Sustained) {
- //cerr << "MM Appending note on " << (unsigned)(uint8_t)note_num << endl;
+ //cerr << "MM Sustained: Appending active note on " << (unsigned)(uint8_t)note_num << endl;
_write_notes.push_back(_notes.size() - 1);
} else {
- //cerr << "MM NOT appending note on" << endl;
+ //cerr << "MM Percussive: NOT appending active note on" << endl;
}
}
void
-MidiModel::append_note_off(double time, uint8_t note_num)
+MidiModel::append_note_off_unlocked(double time, uint8_t note_num)
{
+ //cerr << "MidiModel " << this << " note " << (int)note_num << " off @ " << time << endl;
+
assert(_writing);
if (_note_mode == Percussive) {
//cerr << "MM Ignoring note off (percussive mode)" << endl;
assert(time > note.time());
note.set_duration(time - note.time());
_write_notes.erase(n);
- //cerr << "MidiModel resolved note, duration: " << note.duration() << endl;
+ //cerr << "MM resolved note, duration: " << note.duration() << endl;
break;
}
}
void
-MidiModel::add_note(const Note& note)
+MidiModel::append_cc_unlocked(double time, uint8_t number, uint8_t value)
+{
+ Parameter param(MidiCCAutomation, number);
+
+ boost::shared_ptr<AutomationControl> control = Automatable::control(param, true);
+ //cerr << "MidiModel " << this << "(" << control.get() << ") add CC " << (int)number << " = " << (int)value
+ // << " @ " << time << endl;
+ control->list()->fast_simple_add(time, (double)value);
+}
+
+
+void
+MidiModel::add_note_unlocked(const Note& note)
{
+ //cerr << "MidiModel " << this << " add note " << (int)note.note() << " @ " << note.time() << endl;
Notes::iterator i = upper_bound(_notes.begin(), _notes.end(), note, note_time_comparator);
_notes.insert(i, note);
}
void
-MidiModel::remove_note(const Note& note)
+MidiModel::remove_note_unlocked(const Note& note)
{
+ //cerr << "MidiModel " << this << " remove note " << (int)note.note() << " @ " << note.time() << endl;
Notes::iterator n = find(_notes.begin(), _notes.end(), note);
if (n != _notes.end())
_notes.erase(n);
}
/** Slow! for debugging only. */
+#ifndef NDEBUG
bool
MidiModel::is_sorted() const
{
return true;
}
-
+#endif
/** Start a new command.
*
(*cmd)();
assert(is_sorted());
_session.commit_reversible_command(cmd);
+ _edited = true;
}
// This could be made much faster by using a priority_queue for added and
// removed notes (or sort here), and doing a single iteration over _model
+ _model.write_lock();
+
for (std::list<Note>::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
- _model.add_note(*i);
+ _model.add_note_unlocked(*i);
for (std::list<Note>::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
- _model.remove_note(*i);
+ _model.remove_note_unlocked(*i);
+
+ _model.write_unlock();
_model.ContentsChanged(); /* EMIT SIGNAL */
}
{
// This could be made much faster by using a priority_queue for added and
// removed notes (or sort here), and doing a single iteration over _model
+
+ _model.write_lock();
for (std::list<Note>::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
- _model.remove_note(*i);
+ _model.remove_note_unlocked(*i);
for (std::list<Note>::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
- _model.add_note(*i);
+ _model.add_note_unlocked(*i);
+
+ _model.write_unlock();
_model.ContentsChanged(); /* EMIT SIGNAL */
}
+
+bool
+MidiModel::write_to(boost::shared_ptr<MidiSource> source)
+{
+ //cerr << "Writing model to " << source->name() << endl;
+
+ /* This could be done using a temporary MidiRingBuffer and using
+ * MidiModel::read and MidiSource::write, but this is more efficient
+ * and doesn't require any buffer size assumptions (ie it's worth
+ * the code duplication).
+ *
+ * This is also different from read in that note off events are written
+ * regardless of the track mode. This is so the user can switch a
+ * recorded track (with note durations from some instrument) to percussive,
+ * save, reload, then switch it back to sustained preserving the original
+ * note durations.
+ */
+
+ /* Percussive
+ for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n) {
+ const MidiEvent& ev = n->on_event();
+ source->append_event_unlocked(ev);
+ }*/
+
+ read_lock();
+
+ LaterNoteEndComparator cmp;
+ ActiveNotes active_notes(cmp);
+
+ // Foreach note
+ for (Notes::const_iterator n = _notes.begin(); n != _notes.end(); ++n) {
+
+ // Write any pending note offs earlier than this note on
+ while ( ! active_notes.empty() ) {
+ const Note* const earliest_off = active_notes.top();
+ const MidiEvent& off_ev = earliest_off->off_event();
+ if (off_ev.time() <= n->time()) {
+ source->append_event_unlocked(off_ev);
+ active_notes.pop();
+ } else {
+ break;
+ }
+ }
+
+ // Write this note on
+ source->append_event_unlocked(n->on_event());
+ if (n->duration() > 0)
+ active_notes.push(&(*n));
+ }
+
+ // Write any trailing note offs
+ while ( ! active_notes.empty() ) {
+ source->append_event_unlocked(active_notes.top()->off_event());
+ active_notes.pop();
+ }
+
+ _edited = false;
+
+ read_unlock();
+
+ return true;
+}
+
+XMLNode&
+MidiModel::get_state()
+{
+ XMLNode *node = new XMLNode("MidiModel");
+ return *node;
+}
+
projects / ardour.git / blobdiff