2 Copyright (C) 2006 Paul Davis
3 By Dave Robillard, 2006
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.
19 #include "pbd/error.h"
21 #include "pbd/enumwriter.h"
22 #include "pbd/convert.h"
23 #include "midi++/events.h"
24 #include "evoral/midi_util.h"
26 #include "ardour/amp.h"
27 #include "ardour/buffer_set.h"
28 #include "ardour/debug.h"
29 #include "ardour/delivery.h"
30 #include "ardour/io_processor.h"
31 #include "ardour/meter.h"
32 #include "ardour/midi_diskstream.h"
33 #include "ardour/midi_playlist.h"
34 #include "ardour/midi_port.h"
35 #include "ardour/midi_region.h"
36 #include "ardour/midi_source.h"
37 #include "ardour/midi_track.h"
38 #include "ardour/panner.h"
39 #include "ardour/port.h"
40 #include "ardour/processor.h"
41 #include "ardour/route_group_specialized.h"
42 #include "ardour/session.h"
43 #include "ardour/session_playlists.h"
44 #include "ardour/utils.h"
49 using namespace ARDOUR;
52 MidiTrack::MidiTrack (Session& sess, string name, Route::Flag flag, TrackMode mode)
53 : Track (sess, name, flag, mode, DataType::MIDI)
54 , _immediate_events(1024) // FIXME: size?
55 , _step_edit_ring_buffer(64) // FIXME: size?
56 , _note_mode(Sustained)
57 , _step_editing (false)
58 , _default_channel (0)
63 MidiTrack::~MidiTrack ()
68 MidiTrack::use_new_diskstream ()
70 MidiDiskstream::Flag dflags = MidiDiskstream::Flag (0);
72 if (_flags & Hidden) {
73 dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Hidden);
75 dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Recordable);
78 assert(_mode != Destructive);
80 boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, name(), dflags));
81 ds->do_refill_with_alloc ();
82 ds->set_block_size (_session.get_block_size ());
88 MidiTrack::set_record_enabled (bool yn, void *src)
94 Track::set_record_enabled (yn, src);
98 MidiTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
100 Track::set_diskstream (ds);
102 _diskstream->set_track (this);
103 _diskstream->set_destructive (_mode == Destructive);
105 _diskstream->set_record_enabled (false);
106 //_diskstream->monitor_input (false);
108 _diskstream_data_recorded_connection.disconnect ();
109 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream> (ds);
110 mds->DataRecorded.connect_same_thread (_diskstream_data_recorded_connection, boost::bind (&MidiTrack::diskstream_data_recorded, this, _1, _2));
112 DiskstreamChanged (); /* EMIT SIGNAL */
115 boost::shared_ptr<MidiDiskstream>
116 MidiTrack::midi_diskstream() const
118 return boost::dynamic_pointer_cast<MidiDiskstream>(_diskstream);
122 MidiTrack::set_state (const XMLNode& node, int version)
124 return _set_state (node, version, true);
128 MidiTrack::_set_state (const XMLNode& node, int version, bool call_base)
130 const XMLProperty *prop;
131 XMLNodeConstIterator iter;
133 if (Route::_set_state (node, version, call_base)) {
137 // No destructive MIDI tracks (yet?)
140 if ((prop = node.property (X_("note-mode"))) != 0) {
141 _note_mode = NoteMode (string_2_enum (prop->value(), _note_mode));
143 _note_mode = Sustained;
146 if ((prop = node.property ("midi-thru")) != 0) {
147 set_midi_thru (prop->value() == "yes");
150 if ((prop = node.property ("default-channel")) != 0) {
151 set_default_channel ((uint8_t) atoi (prop->value()));
155 XMLNodeConstIterator niter;
158 nlist = node.children();
159 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
162 if (child->name() == X_("recenable")) {
163 _rec_enable_control->set_state (*child, version);
164 _session.add_controllable (_rec_enable_control);
168 if (version >= 3000) {
169 if ((child = find_named_node (node, X_("Diskstream"))) != 0) {
170 boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, *child));
171 ds->do_refill_with_alloc ();
176 pending_state = const_cast<XMLNode*> (&node);
178 if (_session.state_of_the_state() & Session::Loading) {
179 _session.StateReady.connect_same_thread (*this, boost::bind (&MidiTrack::set_state_part_two, this));
181 set_state_part_two ();
188 MidiTrack::state(bool full_state)
190 XMLNode& root (Route::state(full_state));
191 XMLNode* freeze_node;
194 if (_freeze_record.playlist) {
197 freeze_node = new XMLNode (X_("freeze-info"));
198 freeze_node->add_property ("playlist", _freeze_record.playlist->name());
199 freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
201 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
202 inode = new XMLNode (X_("processor"));
203 (*i)->id.print (buf, sizeof(buf));
204 inode->add_property (X_("id"), buf);
205 inode->add_child_copy ((*i)->state);
207 freeze_node->add_child_nocopy (*inode);
210 root.add_child_nocopy (*freeze_node);
213 root.add_property (X_("note-mode"), enum_2_string (_note_mode));
214 root.add_child_nocopy (_rec_enable_control->get_state());
215 root.add_child_nocopy (_diskstream->get_state ());
217 root.add_property ("step-editing", (_step_editing ? "yes" : "no"));
218 root.add_property ("note-mode", enum_2_string (_note_mode));
219 root.add_property ("midi-thru", (_midi_thru ? "yes" : "no"));
220 snprintf (buf, sizeof (buf), "%d", (int) _default_channel);
221 root.add_property ("default-channel", buf);
227 MidiTrack::set_state_part_two ()
231 LocaleGuard lg (X_("POSIX"));
233 /* This is called after all session state has been restored but before
234 have been made ports and connections are established.
237 if (pending_state == 0) {
241 if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
243 _freeze_record.state = Frozen;
245 for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
248 _freeze_record.processor_info.clear ();
250 if ((prop = fnode->property (X_("playlist"))) != 0) {
251 boost::shared_ptr<Playlist> pl = _session.playlists->by_name (prop->value());
253 _freeze_record.playlist = boost::dynamic_pointer_cast<MidiPlaylist> (pl);
255 _freeze_record.playlist.reset();
256 _freeze_record.state = NoFreeze;
261 if ((prop = fnode->property (X_("state"))) != 0) {
262 _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
265 XMLNodeConstIterator citer;
266 XMLNodeList clist = fnode->children();
268 for (citer = clist.begin(); citer != clist.end(); ++citer) {
269 if ((*citer)->name() != X_("processor")) {
273 if ((prop = (*citer)->property (X_("id"))) == 0) {
277 FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
278 boost::shared_ptr<Processor>());
279 frii->id = prop->value ();
280 _freeze_record.processor_info.push_back (frii);
284 if ((fnode = find_named_node (*pending_state, X_("Diskstream"))) != 0) {
285 boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, *fnode));
286 ds->do_refill_with_alloc ();
287 ds->set_block_size (_session.get_block_size ());
295 MidiTrack::roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick,
296 bool can_record, bool rec_monitors_input, bool& needs_butler)
298 Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
304 boost::shared_ptr<MidiDiskstream> diskstream = midi_diskstream();
306 automation_snapshot (start_frame);
308 if (n_outputs().n_total() == 0 && _processors.empty()) {
317 nframes_t transport_frame = _session.transport_frame();
320 if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
321 /* need to do this so that the diskstream sets its
322 playback distance to zero, thus causing diskstream::commit
325 return diskstream->process (transport_frame, 0, can_record, rec_monitors_input, needs_butler);
330 if ((dret = diskstream->process (transport_frame, nframes, can_record, rec_monitors_input, needs_butler)) != 0) {
335 /* special condition applies */
337 if (_meter_point == MeterInput) {
338 _input->process_input (_meter, start_frame, end_frame, nframes);
341 if (diskstream->record_enabled() && !can_record && !_session.config.get_auto_input()) {
343 /* not actually recording, but we want to hear the input material anyway,
344 at least potentially (depending on monitoring options)
347 passthru (start_frame, end_frame, nframes, 0);
351 XXX is it true that the earlier test on n_outputs()
352 means that we can avoid checking it again here? i think
353 so, because changing the i/o configuration of an IO
354 requires holding the AudioEngine lock, which we hold
355 while in the process() tree.
359 /* copy the diskstream data to all output buffers */
361 //const size_t limit = n_process_buffers().n_audio();
362 BufferSet& bufs = _session.get_scratch_buffers (n_process_buffers());
363 MidiBuffer& mbuf (bufs.get_midi (0));
365 /* we are a MIDI track, so we always start the chain with a single-channel diskstream */
371 diskstream->get_playback (mbuf, start_frame, end_frame);
373 /* append immediate messages to the first MIDI buffer (thus sending it to the first output port) */
375 write_out_of_band_data (bufs, start_frame, end_frame, nframes);
377 process_output_buffers (bufs, start_frame, end_frame, nframes,
378 (!_session.get_record_enabled() || !Config->get_do_not_record_plugins()), declick);
382 _main_outs->flush_buffers (nframes, end_frame - start_frame - 1);
388 MidiTrack::no_roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame,
389 bool state_changing, bool can_record, bool rec_monitors_input)
391 int ret = Track::no_roll (nframes, start_frame, end_frame, state_changing, can_record, rec_monitors_input);
393 if (ret == 0 && _step_editing) {
394 push_midi_input_to_step_edit_ringbuffer (nframes);
401 MidiTrack::handle_transport_stopped (bool abort, bool did_locate, bool flush_processors)
403 Route::handle_transport_stopped (abort, did_locate, flush_processors);
407 MidiTrack::push_midi_input_to_step_edit_ringbuffer (nframes_t nframes)
409 PortSet& ports (_input->ports());
411 for (PortSet::iterator p = ports.begin(DataType::MIDI); p != ports.end(DataType::MIDI); ++p) {
413 Buffer& b (p->get_buffer (nframes));
414 const MidiBuffer* const mb = dynamic_cast<MidiBuffer*>(&b);
417 for (MidiBuffer::const_iterator e = mb->begin(); e != mb->end(); ++e) {
419 const Evoral::MIDIEvent<nframes_t> ev(*e, false);
421 /* note on, since for step edit, note length is determined
425 if (ev.is_note_on()) {
426 /* we don't care about the time for this purpose */
427 _step_edit_ring_buffer.write (0, ev.type(), ev.size(), ev.buffer());
434 MidiTrack::write_out_of_band_data (BufferSet& bufs, framepos_t /*start*/, framepos_t /*end*/, nframes_t nframes)
436 // Append immediate events
437 MidiBuffer& buf (bufs.get_midi (0));
438 if (_immediate_events.read_space()) {
439 DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 has %2 of immediate events to deliver\n",
440 name(), _immediate_events.read_space()));
442 _immediate_events.read (buf, 0, 1, nframes-1); // all stamps = 0
444 // MIDI thru: send incoming data "through" output
445 if (_midi_thru && _session.transport_speed() != 0.0f && _input->n_ports().n_midi()) {
446 buf.merge_in_place (_input->midi(0)->get_midi_buffer(nframes));
451 MidiTrack::export_stuff (BufferSet& /*bufs*/, nframes_t /*nframes*/, framepos_t /*end_frame*/)
457 MidiTrack::set_latency_delay (nframes_t longest_session_latency)
459 Route::set_latency_delay (longest_session_latency);
460 _diskstream->set_roll_delay (_roll_delay);
463 boost::shared_ptr<Region>
464 MidiTrack::bounce (InterThreadInfo& /*itt*/)
467 // vector<MidiSource*> srcs;
468 // return _session.write_one_track (*this, 0, _session.current_end_frame(), false, srcs, itt);
469 return boost::shared_ptr<Region> ();
473 boost::shared_ptr<Region>
474 MidiTrack::bounce_range (nframes_t /*start*/, nframes_t /*end*/, InterThreadInfo& /*itt*/, bool /*enable_processing*/)
477 //vector<MidiSource*> srcs;
478 //return _session.write_one_track (*this, start, end, false, srcs, itt);
479 return boost::shared_ptr<Region> ();
483 MidiTrack::freeze_me (InterThreadInfo& /*itt*/)
488 MidiTrack::unfreeze ()
490 _freeze_record.state = UnFrozen;
491 FreezeChange (); /* EMIT SIGNAL */
495 MidiTrack::set_note_mode (NoteMode m)
498 midi_diskstream()->set_note_mode(m);
502 MidiTrack::midi_panic()
504 DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 delivers panic data\n", name()));
505 for (uint8_t channel = 0; channel <= 0xF; channel++) {
506 uint8_t ev[3] = { MIDI_CMD_CONTROL | channel, MIDI_CTL_SUSTAIN, 0 };
507 write_immediate_event(3, ev);
508 ev[1] = MIDI_CTL_ALL_NOTES_OFF;
509 write_immediate_event(3, ev);
510 ev[1] = MIDI_CTL_RESET_CONTROLLERS;
511 write_immediate_event(3, ev);
515 /** \return true on success, false on failure (no buffer space left)
518 MidiTrack::write_immediate_event(size_t size, const uint8_t* buf)
520 if (!Evoral::midi_event_is_valid(buf, size)) {
521 cerr << "WARNING: Ignoring illegal immediate MIDI event" << endl;
524 const uint32_t type = EventTypeMap::instance().midi_event_type(buf[0]);
525 return (_immediate_events.write(0, type, size, buf) == size);
529 MidiTrack::MidiControl::set_value(double val)
533 cerr << "MIDIControl value is infinity" << endl;
534 } else if (isnan(val)) {
535 cerr << "MIDIControl value is NaN" << endl;
536 } else if (val < _list->parameter().min()) {
537 cerr << "MIDIControl value is < " << _list->parameter().min() << endl;
538 } else if (val > _list->parameter().max()) {
539 cerr << "MIDIControl value is > " << _list->parameter().max() << endl;
548 assert(val <= _list->parameter().max());
549 if ( ! automation_playback()) {
551 uint8_t ev[3] = { _list->parameter().channel(), int(val), 0 };
552 switch(_list->parameter().type()) {
553 case MidiCCAutomation:
554 ev[0] += MIDI_CMD_CONTROL;
555 ev[1] = _list->parameter().id();
559 case MidiPgmChangeAutomation:
561 ev[0] += MIDI_CMD_PGM_CHANGE;
565 case MidiChannelPressureAutomation:
567 ev[0] += MIDI_CMD_CHANNEL_PRESSURE;
571 case MidiPitchBenderAutomation:
572 ev[0] += MIDI_CMD_BENDER;
573 ev[1] = 0x7F & int(val);
574 ev[2] = 0x7F & (int(val) >> 7);
580 _route->write_immediate_event(size, ev);
583 AutomationControl::set_value(val);
587 MidiTrack::set_step_editing (bool yn)
589 if (_session.record_status() != Session::Disabled) {
593 if (yn != _step_editing) {
595 StepEditStatusChange (yn);
600 MidiTrack::set_default_channel (uint8_t chn)
602 _default_channel = std::min ((unsigned int) chn, 15U);
606 MidiTrack::set_midi_thru (bool yn)
611 boost::shared_ptr<SMFSource>
612 MidiTrack::write_source (uint32_t)
614 return midi_diskstream()->write_source ();
618 MidiTrack::set_channel_mode (ChannelMode mode, uint16_t mask)
620 midi_diskstream()->set_channel_mode (mode, mask);
624 MidiTrack::get_channel_mode ()
626 return midi_diskstream()->get_channel_mode ();
630 MidiTrack::get_channel_mask ()
632 return midi_diskstream()->get_channel_mask ();
635 boost::shared_ptr<MidiPlaylist>
636 MidiTrack::midi_playlist ()
638 return midi_diskstream()->midi_playlist ();
642 MidiTrack::diskstream_data_recorded (boost::shared_ptr<MidiBuffer> buf, boost::weak_ptr<MidiSource> src)
644 DataRecorded (buf, src); /* EMIT SIGNAL */