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.
30 #include <glibmm/fileutils.h>
31 #include <glibmm/miscutils.h>
33 #include "pbd/xml++.h"
34 #include "pbd/pthread_utils.h"
35 #include "pbd/basename.h"
37 #include "evoral/Control.hpp"
38 #include "evoral/EventSink.hpp"
40 #include "ardour/debug.h"
41 #include "ardour/midi_model.h"
42 #include "ardour/midi_state_tracker.h"
43 #include "ardour/midi_source.h"
44 #include "ardour/file_source.h"
45 #include "ardour/session.h"
46 #include "ardour/session_directory.h"
47 #include "ardour/source_factory.h"
51 namespace ARDOUR { template <typename T> class MidiRingBuffer; }
54 using namespace ARDOUR;
57 PBD::Signal1<void,MidiSource*> MidiSource::MidiSourceCreated;
59 MidiSource::MidiSource (Session& s, string name, Source::Flag flags)
60 : Source(s, DataType::MIDI, name, flags)
62 , _model_iter_valid(false)
66 , _capture_loop_length(0)
70 MidiSource::MidiSource (Session& s, const XMLNode& node)
73 , _model_iter_valid(false)
77 , _capture_loop_length(0)
79 if (set_state (node, Stateful::loading_state_version)) {
80 throw failed_constructor();
84 MidiSource::~MidiSource ()
89 MidiSource::get_state ()
91 XMLNode& node (Source::get_state());
93 if (_captured_for.length()) {
94 node.add_property ("captured-for", _captured_for);
97 for (InterpolationStyleMap::const_iterator i = _interpolation_style.begin(); i != _interpolation_style.end(); ++i) {
98 XMLNode* child = node.add_child (X_("InterpolationStyle"));
99 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
100 child->add_property (X_("style"), enum_2_string (i->second));
103 for (AutomationStateMap::const_iterator i = _automation_state.begin(); i != _automation_state.end(); ++i) {
104 XMLNode* child = node.add_child (X_("AutomationState"));
105 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
106 child->add_property (X_("state"), enum_2_string (i->second));
113 MidiSource::set_state (const XMLNode& node, int /*version*/)
115 const XMLProperty* prop;
116 if ((prop = node.property ("captured-for")) != 0) {
117 _captured_for = prop->value();
120 XMLNodeList children = node.children ();
121 for (XMLNodeConstIterator i = children.begin(); i != children.end(); ++i) {
122 if ((*i)->name() == X_("InterpolationStyle")) {
123 if ((prop = (*i)->property (X_("parameter"))) == 0) {
124 error << _("Missing parameter property on InterpolationStyle") << endmsg;
127 Evoral::Parameter p = EventTypeMap::instance().from_symbol (prop->value());
129 if ((prop = (*i)->property (X_("style"))) == 0) {
130 error << _("Missing style property on InterpolationStyle") << endmsg;
133 Evoral::ControlList::InterpolationStyle s = static_cast<Evoral::ControlList::InterpolationStyle>(
134 string_2_enum (prop->value(), s));
135 set_interpolation_of (p, s);
137 } else if ((*i)->name() == X_("AutomationState")) {
138 if ((prop = (*i)->property (X_("parameter"))) == 0) {
139 error << _("Missing parameter property on AutomationState") << endmsg;
142 Evoral::Parameter p = EventTypeMap::instance().from_symbol (prop->value());
144 if ((prop = (*i)->property (X_("state"))) == 0) {
145 error << _("Missing state property on AutomationState") << endmsg;
148 AutoState s = static_cast<AutoState> (string_2_enum (prop->value(), s));
149 set_automation_state_of (p, s);
157 MidiSource::empty () const
159 return !_length_beats;
163 MidiSource::length (framepos_t pos) const
165 if (!_length_beats) {
169 BeatsFramesConverter converter(_session.tempo_map(), pos);
170 return converter.to(_length_beats);
174 MidiSource::update_length (framecnt_t)
176 // You're not the boss of me!
180 MidiSource::invalidate (const Lock& lock, std::set<Evoral::Sequence<Evoral::Beats>::WeakNotePtr>* notes)
182 _model_iter_valid = false;
183 _model_iter.invalidate(notes);
187 MidiSource::midi_read (const Lock& lm,
188 Evoral::EventSink<framepos_t>& dst,
189 framepos_t source_start,
192 MidiStateTracker* tracker,
193 const std::set<Evoral::Parameter>& filtered) const
195 BeatsFramesConverter converter(_session.tempo_map(), source_start);
197 DEBUG_TRACE (DEBUG::MidiSourceIO,
198 string_compose ("MidiSource::midi_read() %5 sstart %1 start %2 cnt %3 tracker %4\n",
199 source_start, start, cnt, tracker, name()));
202 // Find appropriate model iterator
203 Evoral::Sequence<Evoral::Beats>::const_iterator& i = _model_iter;
204 const bool linear_read = _last_read_end != 0 && start == _last_read_end;
205 if (!linear_read || !_model_iter_valid) {
206 // Cached iterator is invalid, search for the first event past start
207 i = _model->begin(converter.from(start), false, filtered,
208 linear_read ? &_model->active_notes() : NULL);
209 _model_iter_valid = true;
211 _model->active_notes().clear();
215 _last_read_end = start + cnt;
217 // Copy events in [start, start + cnt) into dst
218 for (; i != _model->end(); ++i) {
219 const framecnt_t time_frames = converter.to(i->time());
220 if (time_frames < start + cnt) {
221 // Offset by source start to convert event time to session time
222 dst.write (time_frames + source_start, i->event_type(), i->size(), i->buffer());
224 DEBUG_TRACE (DEBUG::MidiSourceIO,
225 string_compose ("%1: add event @ %2 type %3 size %4\n",
226 _name, time_frames + source_start, i->event_type(), i->size()));
232 DEBUG_TRACE (DEBUG::MidiSourceIO,
233 string_compose ("%1: reached end with event @ %2 vs. %3\n",
234 _name, time_frames, start+cnt));
240 return read_unlocked (lm, dst, source_start, start, cnt, tracker);
245 MidiSource::midi_write (const Lock& lm,
246 MidiRingBuffer<framepos_t>& source,
247 framepos_t source_start,
250 const framecnt_t ret = write_unlocked (lm, source, source_start, cnt);
252 if (cnt == max_framecnt) {
256 _capture_length += cnt;
263 MidiSource::mark_streaming_midi_write_started (const Lock& lock, NoteMode mode)
266 _model->set_note_mode (mode);
267 _model->start_write ();
274 MidiSource::mark_write_starting_now (framecnt_t position,
275 framecnt_t capture_length,
276 framecnt_t loop_length)
278 /* I'm not sure if this is the best way to approach this, but
279 _capture_length needs to be set up with the transport frame
280 when a record actually starts, as it is used by
281 SMFSource::write_unlocked to decide whether incoming notes
282 are within the correct time range.
283 mark_streaming_midi_write_started (perhaps a more logical
284 place to do this) is not called at exactly the time when
285 record starts, and I don't think it necessarily can be
286 because it is not RT-safe.
289 set_timeline_position(position);
290 _capture_length = capture_length;
291 _capture_loop_length = loop_length;
293 BeatsFramesConverter converter(_session.tempo_map(), position);
294 _length_beats = converter.from(capture_length);
298 MidiSource::mark_streaming_write_started (const Lock& lock)
300 NoteMode note_mode = _model ? _model->note_mode() : Sustained;
301 mark_streaming_midi_write_started (lock, note_mode);
305 MidiSource::mark_midi_streaming_write_completed (const Lock& lock,
306 Evoral::Sequence<Evoral::Beats>::StuckNoteOption option,
310 _model->end_write (option, end);
312 /* Make captured controls discrete to play back user input exactly. */
313 for (MidiModel::Controls::iterator i = _model->controls().begin(); i != _model->controls().end(); ++i) {
314 if (i->second->list()) {
315 i->second->list()->set_interpolation(Evoral::ControlList::Discrete);
316 _interpolation_style.insert(std::make_pair(i->second->parameter(), Evoral::ControlList::Discrete));
326 MidiSource::mark_streaming_write_completed (const Lock& lock)
328 mark_midi_streaming_write_completed (lock, Evoral::Sequence<Evoral::Beats>::DeleteStuckNotes);
332 MidiSource::write_to (const Lock& lock, boost::shared_ptr<MidiSource> newsrc, Evoral::Beats begin, Evoral::Beats end)
334 Lock newsrc_lock (newsrc->mutex ());
336 newsrc->set_timeline_position (_timeline_position);
337 newsrc->copy_interpolation_from (this);
338 newsrc->copy_automation_state_from (this);
341 if (begin == Evoral::MinBeats && end == Evoral::MaxBeats) {
342 _model->write_to (newsrc, newsrc_lock);
344 _model->write_section_to (newsrc, newsrc_lock, begin, end);
347 error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()"));
351 newsrc->flush_midi(newsrc_lock);
353 /* force a reload of the model if the range is partial */
355 if (begin != Evoral::MinBeats || end != Evoral::MaxBeats) {
356 newsrc->load_model (newsrc_lock, true);
358 newsrc->set_model (newsrc_lock, _model);
361 /* this file is not removable (but since it is MIDI, it is mutable) */
363 boost::dynamic_pointer_cast<FileSource> (newsrc)->prevent_deletion ();
369 MidiSource::session_saved()
373 /* this writes a copy of the data to disk.
374 XXX do we need to do this every time?
377 if (_model && _model->edited()) {
378 /* The model is edited, write its contents into the current source
379 file (overwiting previous contents). */
381 /* Temporarily drop our reference to the model so that as the model
382 pushes its current state to us, we don't try to update it. */
383 boost::shared_ptr<MidiModel> mm = _model;
386 /* Flush model contents to disk. */
387 mm->sync_to_source (lm);
389 /* Reacquire model. */
398 MidiSource::set_note_mode(const Lock& lock, NoteMode mode)
401 _model->set_note_mode(mode);
406 MidiSource::drop_model (const Lock& lock)
410 ModelChanged (); /* EMIT SIGNAL */
414 MidiSource::set_model (const Lock& lock, boost::shared_ptr<MidiModel> m)
418 ModelChanged (); /* EMIT SIGNAL */
421 Evoral::ControlList::InterpolationStyle
422 MidiSource::interpolation_of (Evoral::Parameter p) const
424 InterpolationStyleMap::const_iterator i = _interpolation_style.find (p);
425 if (i == _interpolation_style.end()) {
426 return EventTypeMap::instance().interpolation_of (p);
433 MidiSource::automation_state_of (Evoral::Parameter p) const
435 AutomationStateMap::const_iterator i = _automation_state.find (p);
436 if (i == _automation_state.end()) {
437 /* default to `play', otherwise if MIDI is recorded /
438 imported with controllers etc. they are by default
439 not played back, which is a little surprising.
447 /** Set interpolation style to be used for a given parameter. This change will be
448 * propagated to anyone who needs to know.
451 MidiSource::set_interpolation_of (Evoral::Parameter p, Evoral::ControlList::InterpolationStyle s)
453 if (interpolation_of (p) == s) {
457 if (EventTypeMap::instance().interpolation_of (p) == s) {
458 /* interpolation type is being set to the default, so we don't need a note in our map */
459 _interpolation_style.erase (p);
461 _interpolation_style[p] = s;
464 InterpolationChanged (p, s); /* EMIT SIGNAL */
468 MidiSource::set_automation_state_of (Evoral::Parameter p, AutoState s)
470 if (automation_state_of (p) == s) {
475 /* automation state is being set to the default, so we don't need a note in our map */
476 _automation_state.erase (p);
478 _automation_state[p] = s;
481 AutomationStateChanged (p, s); /* EMIT SIGNAL */
485 MidiSource::copy_interpolation_from (boost::shared_ptr<MidiSource> s)
487 copy_interpolation_from (s.get ());
491 MidiSource::copy_automation_state_from (boost::shared_ptr<MidiSource> s)
493 copy_automation_state_from (s.get ());
497 MidiSource::copy_interpolation_from (MidiSource* s)
499 _interpolation_style = s->_interpolation_style;
501 /* XXX: should probably emit signals here */
505 MidiSource::copy_automation_state_from (MidiSource* s)
507 _automation_state = s->_automation_state;
509 /* XXX: should probably emit signals here */