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 ()
182 _model_iter_valid = false;
183 _model_iter.invalidate();
187 MidiSource::midi_read (Evoral::EventSink<framepos_t>& dst,
188 framepos_t source_start,
191 MidiStateTracker* tracker,
192 const std::set<Evoral::Parameter>& filtered) const
194 Glib::Threads::Mutex::Lock lm (_lock);
196 BeatsFramesConverter converter(_session.tempo_map(), source_start);
198 DEBUG_TRACE (DEBUG::MidiSourceIO,
199 string_compose ("MidiSource::midi_read() %5 sstart %1 start %2 cnt %3 tracker %4\n",
200 source_start, start, cnt, tracker, name()));
203 // Find appropriate model iterator
204 Evoral::Sequence<Evoral::MusicalTime>::const_iterator& i = _model_iter;
205 if (_last_read_end == 0 || start != _last_read_end || !_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 _model_iter_valid = true;
211 _last_read_end = start + cnt;
213 // Copy events in [start, start + cnt) into dst
214 for (; i != _model->end(); ++i) {
215 const framecnt_t time_frames = converter.to(i->time());
216 if (time_frames < start + cnt) {
217 // Offset by source start to convert event time to session time
218 dst.write (time_frames + source_start, i->event_type(), i->size(), i->buffer());
220 DEBUG_TRACE (DEBUG::MidiSourceIO,
221 string_compose ("%1: add event @ %2 type %3 size %4\n",
222 _name, time_frames + source_start, i->event_type(), i->size()));
228 DEBUG_TRACE (DEBUG::MidiSourceIO,
229 string_compose ("%1: reached end with event @ %2 vs. %3\n",
230 _name, time_frames, start+cnt));
236 return read_unlocked (dst, source_start, start, cnt, tracker);
241 MidiSource::midi_write (MidiRingBuffer<framepos_t>& source,
242 framepos_t source_start,
245 Glib::Threads::Mutex::Lock lm (_lock);
247 const framecnt_t ret = write_unlocked (source, source_start, cnt);
249 if (cnt == max_framecnt) {
253 _capture_length += cnt;
260 MidiSource::mark_streaming_midi_write_started (NoteMode mode)
263 _model->set_note_mode (mode);
264 _model->start_write ();
271 MidiSource::mark_write_starting_now (framecnt_t position,
272 framecnt_t capture_length,
273 framecnt_t loop_length)
275 /* I'm not sure if this is the best way to approach this, but
276 _capture_length needs to be set up with the transport frame
277 when a record actually starts, as it is used by
278 SMFSource::write_unlocked to decide whether incoming notes
279 are within the correct time range.
280 mark_streaming_midi_write_started (perhaps a more logical
281 place to do this) is not called at exactly the time when
282 record starts, and I don't think it necessarily can be
283 because it is not RT-safe.
286 set_timeline_position(position);
287 _capture_length = capture_length;
288 _capture_loop_length = loop_length;
290 BeatsFramesConverter converter(_session.tempo_map(), position);
291 _length_beats = converter.from(capture_length);
295 MidiSource::mark_streaming_write_started ()
297 NoteMode note_mode = _model ? _model->note_mode() : Sustained;
298 mark_streaming_midi_write_started (note_mode);
302 MidiSource::mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::StuckNoteOption option,
303 Evoral::MusicalTime end)
306 _model->end_write (option, end);
308 /* Make captured controls discrete to play back user input exactly. */
309 for (MidiModel::Controls::iterator i = _model->controls().begin(); i != _model->controls().end(); ++i) {
310 if (i->second->list()) {
311 i->second->list()->set_interpolation(Evoral::ControlList::Discrete);
312 _interpolation_style.insert(std::make_pair(i->second->parameter(), Evoral::ControlList::Discrete));
321 MidiSource::mark_streaming_write_completed ()
323 mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::DeleteStuckNotes);
327 MidiSource::write_to (boost::shared_ptr<MidiSource> newsrc, Evoral::MusicalTime begin, Evoral::MusicalTime end)
329 newsrc->set_timeline_position (_timeline_position);
330 newsrc->copy_interpolation_from (this);
331 newsrc->copy_automation_state_from (this);
334 if (begin == Evoral::MinMusicalTime && end == Evoral::MaxMusicalTime) {
335 _model->write_to (newsrc);
337 _model->write_section_to (newsrc, begin, end);
340 error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()"));
344 newsrc->flush_midi();
346 /* force a reload of the model if the range is partial */
348 if (begin != Evoral::MinMusicalTime || end != Evoral::MaxMusicalTime) {
349 newsrc->load_model (true, true);
351 newsrc->set_model (_model);
354 /* this file is not removable (but since it is MIDI, it is mutable) */
356 boost::dynamic_pointer_cast<FileSource> (newsrc)->prevent_deletion ();
362 MidiSource::session_saved()
364 /* this writes a copy of the data to disk.
365 XXX do we need to do this every time?
368 if (_model && _model->edited()) {
369 /* The model is edited, write its contents into the current source
370 file (overwiting previous contents). */
372 /* Temporarily drop our reference to the model so that as the model
373 pushes its current state to us, we don't try to update it. */
374 boost::shared_ptr<MidiModel> mm = _model;
377 /* Flush model contents to disk. */
378 mm->sync_to_source ();
380 /* Reacquire model. */
389 MidiSource::set_note_mode(NoteMode mode)
392 _model->set_note_mode(mode);
397 MidiSource::drop_model ()
401 ModelChanged (); /* EMIT SIGNAL */
405 MidiSource::set_model (boost::shared_ptr<MidiModel> m)
409 ModelChanged (); /* EMIT SIGNAL */
412 Evoral::ControlList::InterpolationStyle
413 MidiSource::interpolation_of (Evoral::Parameter p) const
415 InterpolationStyleMap::const_iterator i = _interpolation_style.find (p);
416 if (i == _interpolation_style.end()) {
417 return EventTypeMap::instance().interpolation_of (p);
424 MidiSource::automation_state_of (Evoral::Parameter p) const
426 AutomationStateMap::const_iterator i = _automation_state.find (p);
427 if (i == _automation_state.end()) {
428 /* default to `play', otherwise if MIDI is recorded /
429 imported with controllers etc. they are by default
430 not played back, which is a little surprising.
438 /** Set interpolation style to be used for a given parameter. This change will be
439 * propagated to anyone who needs to know.
442 MidiSource::set_interpolation_of (Evoral::Parameter p, Evoral::ControlList::InterpolationStyle s)
444 if (interpolation_of (p) == s) {
448 if (EventTypeMap::instance().interpolation_of (p) == s) {
449 /* interpolation type is being set to the default, so we don't need a note in our map */
450 _interpolation_style.erase (p);
452 _interpolation_style[p] = s;
455 InterpolationChanged (p, s); /* EMIT SIGNAL */
459 MidiSource::set_automation_state_of (Evoral::Parameter p, AutoState s)
461 if (automation_state_of (p) == s) {
466 /* automation state is being set to the default, so we don't need a note in our map */
467 _automation_state.erase (p);
469 _automation_state[p] = s;
472 AutomationStateChanged (p, s); /* EMIT SIGNAL */
476 MidiSource::copy_interpolation_from (boost::shared_ptr<MidiSource> s)
478 copy_interpolation_from (s.get ());
482 MidiSource::copy_automation_state_from (boost::shared_ptr<MidiSource> s)
484 copy_automation_state_from (s.get ());
488 MidiSource::copy_interpolation_from (MidiSource* s)
490 _interpolation_style = s->_interpolation_style;
492 /* XXX: should probably emit signals here */
496 MidiSource::copy_automation_state_from (MidiSource* s)
498 _automation_state = s->_automation_state;
500 /* XXX: should probably emit signals here */