2 Copyright (C) 2006 Paul Davis
3 Author: David Robillard
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.
20 #include "pbd/error.h"
22 #include "pbd/enumwriter.h"
23 #include "pbd/convert.h"
24 #include "midi++/events.h"
25 #include "evoral/midi_util.h"
27 #include "ardour/amp.h"
28 #include "ardour/buffer_set.h"
29 #include "ardour/debug.h"
30 #include "ardour/delivery.h"
31 #include "ardour/io_processor.h"
32 #include "ardour/meter.h"
33 #include "ardour/midi_diskstream.h"
34 #include "ardour/midi_playlist.h"
35 #include "ardour/midi_port.h"
36 #include "ardour/midi_region.h"
37 #include "ardour/midi_source.h"
38 #include "ardour/midi_track.h"
39 #include "ardour/panner.h"
40 #include "ardour/port.h"
41 #include "ardour/processor.h"
42 #include "ardour/route_group_specialized.h"
43 #include "ardour/session.h"
44 #include "ardour/session_playlists.h"
45 #include "ardour/utils.h"
50 using namespace ARDOUR;
53 MidiTrack::MidiTrack (Session& sess, string name, Route::Flag flag, TrackMode mode)
54 : Track (sess, name, flag, mode, DataType::MIDI)
55 , _immediate_events(1024) // FIXME: size?
56 , _step_edit_ring_buffer(64) // FIXME: size?
57 , _note_mode(Sustained)
58 , _step_editing (false)
60 , _input_active (true)
64 MidiTrack::~MidiTrack ()
75 _input->changed.connect_same_thread (*this, boost::bind (&MidiTrack::track_input_active, this, _1, _2));
80 boost::shared_ptr<Diskstream>
81 MidiTrack::create_diskstream ()
83 MidiDiskstream::Flag dflags = MidiDiskstream::Flag (0);
85 if (_flags & Hidden) {
86 dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Hidden);
88 dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Recordable);
91 assert(_mode != Destructive);
93 return boost::shared_ptr<Diskstream> (new MidiDiskstream (_session, name(), dflags));
98 MidiTrack::set_record_enabled (bool yn, void *src)
104 Track::set_record_enabled (yn, src);
108 MidiTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
110 Track::set_diskstream (ds);
112 _diskstream->set_track (this);
113 _diskstream->set_destructive (_mode == Destructive);
115 _diskstream->set_record_enabled (false);
116 //_diskstream->monitor_input (false);
118 _diskstream_data_recorded_connection.disconnect ();
119 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream> (ds);
120 mds->DataRecorded.connect_same_thread (
121 _diskstream_data_recorded_connection,
122 boost::bind (&MidiTrack::diskstream_data_recorded, this, _1));
124 DiskstreamChanged (); /* EMIT SIGNAL */
127 boost::shared_ptr<MidiDiskstream>
128 MidiTrack::midi_diskstream() const
130 return boost::dynamic_pointer_cast<MidiDiskstream>(_diskstream);
134 MidiTrack::set_state (const XMLNode& node, int version)
136 const XMLProperty *prop;
138 if (Track::set_state (node, version)) {
142 // No destructive MIDI tracks (yet?)
145 if ((prop = node.property (X_("note-mode"))) != 0) {
146 _note_mode = NoteMode (string_2_enum (prop->value(), _note_mode));
148 _note_mode = Sustained;
151 if ((prop = node.property ("midi-thru")) != 0) {
152 set_midi_thru (string_is_affirmative (prop->value()));
155 if ((prop = node.property ("input-active")) != 0) {
156 set_input_active (string_is_affirmative (prop->value()));
159 pending_state = const_cast<XMLNode*> (&node);
161 if (_session.state_of_the_state() & Session::Loading) {
162 _session.StateReady.connect_same_thread (
163 *this, boost::bind (&MidiTrack::set_state_part_two, this));
165 set_state_part_two ();
172 MidiTrack::state(bool full_state)
174 XMLNode& root (Track::state(full_state));
175 XMLNode* freeze_node;
178 if (_freeze_record.playlist) {
181 freeze_node = new XMLNode (X_("freeze-info"));
182 freeze_node->add_property ("playlist", _freeze_record.playlist->name());
183 freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
185 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
186 inode = new XMLNode (X_("processor"));
187 (*i)->id.print (buf, sizeof(buf));
188 inode->add_property (X_("id"), buf);
189 inode->add_child_copy ((*i)->state);
191 freeze_node->add_child_nocopy (*inode);
194 root.add_child_nocopy (*freeze_node);
197 root.add_property (X_("note-mode"), enum_2_string (_note_mode));
199 root.add_property ("step-editing", (_step_editing ? "yes" : "no"));
200 root.add_property ("note-mode", enum_2_string (_note_mode));
201 root.add_property ("midi-thru", (_midi_thru ? "yes" : "no"));
202 root.add_property ("input-active", (_input_active ? "yes" : "no"));
208 MidiTrack::set_state_part_two ()
212 LocaleGuard lg (X_("POSIX"));
214 /* This is called after all session state has been restored but before
215 have been made ports and connections are established.
218 if (pending_state == 0) {
222 if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
224 _freeze_record.state = Frozen;
226 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
229 _freeze_record.processor_info.clear ();
231 if ((prop = fnode->property (X_("playlist"))) != 0) {
232 boost::shared_ptr<Playlist> pl = _session.playlists->by_name (prop->value());
234 _freeze_record.playlist = boost::dynamic_pointer_cast<MidiPlaylist> (pl);
236 _freeze_record.playlist.reset();
237 _freeze_record.state = NoFreeze;
242 if ((prop = fnode->property (X_("state"))) != 0) {
243 _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
246 XMLNodeConstIterator citer;
247 XMLNodeList clist = fnode->children();
249 for (citer = clist.begin(); citer != clist.end(); ++citer) {
250 if ((*citer)->name() != X_("processor")) {
254 if ((prop = (*citer)->property (X_("id"))) == 0) {
258 FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
259 boost::shared_ptr<Processor>());
260 frii->id = prop->value ();
261 _freeze_record.processor_info.push_back (frii);
265 if (midi_diskstream ()) {
266 midi_diskstream()->set_block_size (_session.get_block_size ());
273 MidiTrack::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& need_butler)
275 Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
280 boost::shared_ptr<MidiDiskstream> diskstream = midi_diskstream();
282 automation_snapshot (start_frame);
284 if (n_outputs().n_total() == 0 && _processors.empty()) {
293 framepos_t transport_frame = _session.transport_frame();
296 framecnt_t playback_distance;
298 if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
299 /* need to do this so that the diskstream sets its
300 playback distance to zero, thus causing diskstream::commit
303 dret = diskstream->process (transport_frame, 0, playback_distance);
304 need_butler = diskstream->commit (playback_distance);
310 if ((dret = diskstream->process (transport_frame, nframes, playback_distance)) != 0) {
311 need_butler = diskstream->commit (playback_distance);
316 /* special condition applies */
318 if (_meter_point == MeterInput) {
319 _input->process_input (_meter, start_frame, end_frame, nframes);
322 if (monitoring_state() == MonitoringInput) {
324 /* not actually recording, but we want to hear the input material anyway,
325 at least potentially (depending on monitoring options)
328 passthru (start_frame, end_frame, nframes, 0);
332 XXX is it true that the earlier test on n_outputs()
333 means that we can avoid checking it again here? i think
334 so, because changing the i/o configuration of an IO
335 requires holding the AudioEngine lock, which we hold
336 while in the process() tree.
340 /* copy the diskstream data to all output buffers */
342 //const size_t limit = n_process_buffers().n_audio();
343 BufferSet& bufs = _session.get_scratch_buffers (n_process_buffers());
344 MidiBuffer& mbuf (bufs.get_midi (0));
346 /* we are a MIDI track, so we always start the chain with a single-channel diskstream */
352 diskstream->get_playback (mbuf, nframes);
354 /* append immediate messages to the first MIDI buffer (thus sending it to the first output port) */
356 write_out_of_band_data (bufs, start_frame, end_frame, nframes);
358 /* final argument: don't waste time with automation if we're recording or we've just stopped (yes it can happen) */
360 process_output_buffers (
361 bufs, start_frame, end_frame, nframes,
362 declick, (!diskstream->record_enabled() && !_session.transport_stopped())
366 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
367 boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery> (*i);
369 d->flush_buffers (nframes, end_frame - start_frame - 1);
373 need_butler = diskstream->commit (playback_distance);
379 MidiTrack::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, bool state_changing)
381 int ret = Track::no_roll (nframes, start_frame, end_frame, state_changing);
383 if (ret == 0 && _step_editing) {
384 push_midi_input_to_step_edit_ringbuffer (nframes);
391 MidiTrack::realtime_locate ()
393 Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
398 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
399 (*i)->realtime_locate ();
404 MidiTrack::realtime_handle_transport_stopped ()
406 Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
411 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
412 (*i)->realtime_handle_transport_stopped ();
417 MidiTrack::push_midi_input_to_step_edit_ringbuffer (framecnt_t nframes)
419 PortSet& ports (_input->ports());
421 for (PortSet::iterator p = ports.begin(DataType::MIDI); p != ports.end(DataType::MIDI); ++p) {
423 Buffer& b (p->get_buffer (nframes));
424 const MidiBuffer* const mb = dynamic_cast<MidiBuffer*>(&b);
427 for (MidiBuffer::const_iterator e = mb->begin(); e != mb->end(); ++e) {
429 const Evoral::MIDIEvent<framepos_t> ev(*e, false);
431 /* note on, since for step edit, note length is determined
435 if (ev.is_note_on()) {
436 /* we don't care about the time for this purpose */
437 _step_edit_ring_buffer.write (0, ev.type(), ev.size(), ev.buffer());
444 MidiTrack::write_out_of_band_data (BufferSet& bufs, framepos_t /*start*/, framepos_t /*end*/, framecnt_t nframes)
446 MidiBuffer& buf (bufs.get_midi (0));
448 // Append immediate events
450 if (_immediate_events.read_space()) {
452 DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 has %2 of immediate events to deliver\n",
453 name(), _immediate_events.read_space()));
455 /* write as many of the immediate events as we can, but give "true" as
456 * the last argument ("stop on overflow in destination") so that we'll
457 * ship the rest out next time.
459 * the (nframes-1) argument puts all these events at the last
460 * possible position of the output buffer, so that we do not
461 * violate monotonicity when writing.
464 _immediate_events.read (buf, 0, 1, nframes-1, true);
467 // MIDI thru: send incoming data "through" output
468 if (_midi_thru && _session.transport_speed() != 0.0f && _input->n_ports().n_midi()) {
469 buf.merge_in_place (_input->midi(0)->get_midi_buffer(nframes));
474 MidiTrack::export_stuff (BufferSet& /*bufs*/, framecnt_t /*nframes*/, framepos_t /*end_frame*/)
479 boost::shared_ptr<Region>
480 MidiTrack::bounce (InterThreadInfo& /*itt*/)
482 std::cerr << "MIDI bounce currently unsupported" << std::endl;
483 return boost::shared_ptr<Region> ();
487 boost::shared_ptr<Region>
488 MidiTrack::bounce_range (framepos_t /*start*/, framepos_t /*end*/, InterThreadInfo& /*itt*/, bool /*enable_processing*/)
490 std::cerr << "MIDI bounce range currently unsupported" << std::endl;
491 return boost::shared_ptr<Region> ();
495 MidiTrack::freeze_me (InterThreadInfo& /*itt*/)
497 std::cerr << "MIDI freeze currently unsupported" << std::endl;
501 MidiTrack::unfreeze ()
503 _freeze_record.state = UnFrozen;
504 FreezeChange (); /* EMIT SIGNAL */
508 MidiTrack::set_note_mode (NoteMode m)
511 midi_diskstream()->set_note_mode(m);
515 MidiTrack::midi_panic()
517 DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 delivers panic data\n", name()));
518 for (uint8_t channel = 0; channel <= 0xF; channel++) {
519 uint8_t ev[3] = { MIDI_CMD_CONTROL | channel, MIDI_CTL_SUSTAIN, 0 };
520 write_immediate_event(3, ev);
521 ev[1] = MIDI_CTL_ALL_NOTES_OFF;
522 write_immediate_event(3, ev);
523 ev[1] = MIDI_CTL_RESET_CONTROLLERS;
524 write_immediate_event(3, ev);
528 /** \return true on success, false on failure (no buffer space left)
531 MidiTrack::write_immediate_event(size_t size, const uint8_t* buf)
533 if (!Evoral::midi_event_is_valid(buf, size)) {
534 cerr << "WARNING: Ignoring illegal immediate MIDI event" << endl;
537 const uint32_t type = EventTypeMap::instance().midi_event_type(buf[0]);
538 return (_immediate_events.write(0, type, size, buf) == size);
542 MidiTrack::MidiControl::set_value(double val)
546 cerr << "MIDIControl value is infinity" << endl;
547 } else if (isnan(val)) {
548 cerr << "MIDIControl value is NaN" << endl;
549 } else if (val < _list->parameter().min()) {
550 cerr << "MIDIControl value is < " << _list->parameter().min() << endl;
551 } else if (val > _list->parameter().max()) {
552 cerr << "MIDIControl value is > " << _list->parameter().max() << endl;
561 assert(val <= _list->parameter().max());
562 if ( ! automation_playback()) {
564 uint8_t ev[3] = { _list->parameter().channel(), int(val), 0 };
565 switch(_list->parameter().type()) {
566 case MidiCCAutomation:
567 ev[0] += MIDI_CMD_CONTROL;
568 ev[1] = _list->parameter().id();
572 case MidiPgmChangeAutomation:
574 ev[0] += MIDI_CMD_PGM_CHANGE;
578 case MidiChannelPressureAutomation:
580 ev[0] += MIDI_CMD_CHANNEL_PRESSURE;
584 case MidiPitchBenderAutomation:
585 ev[0] += MIDI_CMD_BENDER;
586 ev[1] = 0x7F & int(val);
587 ev[2] = 0x7F & (int(val) >> 7);
593 _route->write_immediate_event(size, ev);
596 AutomationControl::set_value(val);
600 MidiTrack::set_step_editing (bool yn)
602 if (_session.record_status() != Session::Disabled) {
606 if (yn != _step_editing) {
608 StepEditStatusChange (yn);
613 MidiTrack::set_midi_thru (bool yn)
618 boost::shared_ptr<SMFSource>
619 MidiTrack::write_source (uint32_t)
621 return midi_diskstream()->write_source ();
625 MidiTrack::set_channel_mode (ChannelMode mode, uint16_t mask)
627 midi_diskstream()->set_channel_mode (mode, mask);
631 MidiTrack::get_channel_mode ()
633 return midi_diskstream()->get_channel_mode ();
637 MidiTrack::get_channel_mask ()
639 return midi_diskstream()->get_channel_mask ();
642 boost::shared_ptr<MidiPlaylist>
643 MidiTrack::midi_playlist ()
645 return midi_diskstream()->midi_playlist ();
649 MidiTrack::diskstream_data_recorded (boost::weak_ptr<MidiSource> src)
651 DataRecorded (src); /* EMIT SIGNAL */
655 MidiTrack::should_monitor () const
661 MidiTrack::send_silence () const
667 MidiTrack::input_active () const
669 return _input_active;
673 MidiTrack::set_input_active (bool yn)
675 if (yn != _input_active) {
677 map_input_active (yn);
678 InputActiveChanged (); /* EMIT SIGNAL */
683 MidiTrack::map_input_active (bool yn)
689 PortSet& ports (_input->ports());
691 for (PortSet::iterator p = ports.begin(DataType::MIDI); p != ports.end(DataType::MIDI); ++p) {
692 boost::shared_ptr<MidiPort> mp = boost::dynamic_pointer_cast<MidiPort> (*p);
693 if (yn != mp->input_active()) {
694 mp->set_input_active (yn);
700 MidiTrack::track_input_active (IOChange change, void* /* src */)
702 if (change.type & IOChange::ConfigurationChanged) {
703 map_input_active (_input_active);
707 boost::shared_ptr<Diskstream>
708 MidiTrack::diskstream_factory (XMLNode const & node)
710 return boost::shared_ptr<Diskstream> (new MidiDiskstream (_session, node));
713 boost::shared_ptr<MidiBuffer>
714 MidiTrack::get_gui_feed_buffer () const
716 return midi_diskstream()->get_gui_feed_buffer ();