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 "ardour/debug.h"
38 #include "ardour/midi_model.h"
39 #include "ardour/midi_state_tracker.h"
40 #include "ardour/midi_source.h"
41 #include "ardour/file_source.h"
42 #include "ardour/session.h"
43 #include "ardour/session_directory.h"
44 #include "ardour/source_factory.h"
48 namespace ARDOUR { template <typename T> class MidiRingBuffer; }
51 using namespace ARDOUR;
54 PBD::Signal1<void,MidiSource*> MidiSource::MidiSourceCreated;
56 MidiSource::MidiSource (Session& s, string name, Source::Flag flags)
57 : Source(s, DataType::MIDI, name, flags)
61 , _capture_loop_length(0)
65 MidiSource::MidiSource (Session& s, const XMLNode& node)
70 , _capture_loop_length(0)
72 if (set_state (node, Stateful::loading_state_version)) {
73 throw failed_constructor();
78 MidiSource::~MidiSource ()
83 MidiSource::get_state ()
85 XMLNode& node (Source::get_state());
87 if (_captured_for.length()) {
88 node.add_property ("captured-for", _captured_for);
91 for (InterpolationStyleMap::const_iterator i = _interpolation_style.begin(); i != _interpolation_style.end(); ++i) {
92 XMLNode* child = node.add_child (X_("InterpolationStyle"));
93 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
94 child->add_property (X_("style"), enum_2_string (i->second));
97 for (AutomationStateMap::const_iterator i = _automation_state.begin(); i != _automation_state.end(); ++i) {
98 XMLNode* child = node.add_child (X_("AutomationState"));
99 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
100 child->add_property (X_("state"), enum_2_string (i->second));
107 MidiSource::set_state (const XMLNode& node, int /*version*/)
109 const XMLProperty* prop;
111 if ((prop = node.property ("captured-for")) != 0) {
112 _captured_for = prop->value();
115 XMLNodeList children = node.children ();
116 for (XMLNodeConstIterator i = children.begin(); i != children.end(); ++i) {
117 if ((*i)->name() == X_("InterpolationStyle")) {
120 if ((prop = (*i)->property (X_("parameter"))) == 0) {
121 error << _("Missing parameter property on InterpolationStyle") << endmsg;
125 Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
127 if ((prop = (*i)->property (X_("style"))) == 0) {
128 error << _("Missing style property on InterpolationStyle") << endmsg;
132 Evoral::ControlList::InterpolationStyle s = static_cast<Evoral::ControlList::InterpolationStyle> (string_2_enum (prop->value(), s));
133 set_interpolation_of (p, s);
135 } else if ((*i)->name() == X_("AutomationState")) {
139 if ((prop = (*i)->property (X_("parameter"))) == 0) {
140 error << _("Missing parameter property on AutomationState") << endmsg;
144 Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
146 if ((prop = (*i)->property (X_("state"))) == 0) {
147 error << _("Missing state property on AutomationState") << endmsg;
151 AutoState s = static_cast<AutoState> (string_2_enum (prop->value(), s));
152 set_automation_state_of (p, s);
160 MidiSource::empty () const
162 return _length_beats == 0;
166 MidiSource::length (framepos_t pos) const
168 if (_length_beats == 0) {
172 BeatsFramesConverter converter(_session.tempo_map(), pos);
173 return converter.to(_length_beats);
177 MidiSource::update_length (framecnt_t)
179 // You're not the boss of me!
182 /** @param filtered A set of parameters whose MIDI messages will not be returned */
184 MidiSource::midi_read (Evoral::EventSink<framepos_t>& dst, framepos_t source_start,
185 framepos_t start, framecnt_t cnt,
186 MidiStateTracker* tracker,
187 std::set<Evoral::Parameter> const & filtered) const
189 Glib::Threads::Mutex::Lock lm (_lock);
191 BeatsFramesConverter converter(_session.tempo_map(), source_start);
193 DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("MidiSource::midi-read() %5 sstart %1 start %2 cnt %3 tracker %4\n",
194 source_start, start, cnt, tracker, name()));
197 // Read events up to end
198 const double start_beats = converter.from(start);
199 for (Evoral::Sequence<double>::const_iterator i = _model->begin(start_beats, false, filtered);
202 const framecnt_t time_frames = converter.to(i->time());
203 if (time_frames < start + cnt) {
204 /* convert event times to session frames by adding on the source start position in session frames */
205 dst.write (time_frames + source_start, i->event_type(), i->size(), i->buffer());
207 DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("%1: add event @ %2 type %3 size = %4\n",
208 _name, time_frames + source_start, i->event_type(), i->size()));
211 Evoral::MIDIEvent<Evoral::MusicalTime>& ev (*(reinterpret_cast<Evoral::MIDIEvent<Evoral::MusicalTime>*>
212 (const_cast<Evoral::Event<Evoral::MusicalTime>*> (&(*i)))));
213 if (ev.is_note_on()) {
214 DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 track note on %2 @ %3 velocity %4\n", _name, (int) ev.note(), time_frames, (int) ev.velocity()));
215 tracker->add (ev.note(), ev.channel());
216 } else if (ev.is_note_off()) {
217 DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 track note off %2 @ %3\n", _name, (int) ev.note(), time_frames));
218 tracker->remove (ev.note(), ev.channel());
222 DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("%1: reached end with event @ %2 vs. %3\n",
223 _name, time_frames, start+cnt));
229 return read_unlocked (dst, source_start, start, cnt, tracker);
234 MidiSource::midi_write (MidiRingBuffer<framepos_t>& source,
235 framepos_t source_start,
238 Glib::Threads::Mutex::Lock lm (_lock);
240 const framecnt_t ret = write_unlocked (source, source_start, cnt);
242 if (cnt != max_framecnt) {
243 _capture_length += cnt;
250 MidiSource::mark_streaming_midi_write_started (NoteMode mode)
253 _model->set_note_mode (mode);
254 _model->start_write ();
261 MidiSource::mark_write_starting_now (framecnt_t position,
262 framecnt_t capture_length,
263 framecnt_t loop_length)
265 /* I'm not sure if this is the best way to approach this, but
266 _capture_length needs to be set up with the transport frame
267 when a record actually starts, as it is used by
268 SMFSource::write_unlocked to decide whether incoming notes
269 are within the correct time range.
270 mark_streaming_midi_write_started (perhaps a more logical
271 place to do this) is not called at exactly the time when
272 record starts, and I don't think it necessarily can be
273 because it is not RT-safe.
276 set_timeline_position(position);
277 _capture_length = capture_length;
278 _capture_loop_length = loop_length;
280 BeatsFramesConverter converter(_session.tempo_map(), position);
281 _length_beats = converter.from(capture_length);
285 MidiSource::mark_streaming_write_started ()
287 NoteMode note_mode = _model ? _model->note_mode() : Sustained;
288 mark_streaming_midi_write_started (note_mode);
292 MidiSource::mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::StuckNoteOption option, Evoral::MusicalTime end)
295 _model->end_write (option, end);
302 MidiSource::mark_streaming_write_completed ()
304 mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::DeleteStuckNotes);
308 MidiSource::write_to (boost::shared_ptr<MidiSource> newsrc, Evoral::MusicalTime begin, Evoral::MusicalTime end)
310 newsrc->set_timeline_position(_timeline_position);
311 newsrc->copy_interpolation_from (this);
312 newsrc->copy_automation_state_from (this);
315 if (begin == Evoral::MinMusicalTime && end == Evoral::MaxMusicalTime) {
316 _model->write_to (newsrc);
318 _model->write_section_to (newsrc, begin, end);
321 error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()"));
325 newsrc->flush_midi();
327 /* force a reload of the model if the range is partial */
329 if (begin != Evoral::MinMusicalTime || end != Evoral::MaxMusicalTime) {
330 newsrc->load_model (true, true);
332 newsrc->set_model (_model);
335 /* this file is not removable (but since it is MIDI, it is mutable) */
337 boost::dynamic_pointer_cast<FileSource> (newsrc)->prevent_deletion ();
343 MidiSource::session_saved()
345 /* this writes a copy of the data to disk.
346 XXX do we need to do this every time?
349 if (_model && _model->edited()) {
351 // if the model is edited, write its contents into
352 // the current source file (overwiting previous contents.
354 /* temporarily drop our reference to the model so that
355 as the model pushes its current state to us, we don't
359 boost::shared_ptr<MidiModel> mm = _model;
362 /* flush model contents to disk
365 mm->sync_to_source ();
367 /* reacquire model */
377 MidiSource::set_note_mode(NoteMode mode)
380 _model->set_note_mode(mode);
385 MidiSource::drop_model ()
388 ModelChanged (); /* EMIT SIGNAL */
392 MidiSource::set_model (boost::shared_ptr<MidiModel> m)
395 ModelChanged (); /* EMIT SIGNAL */
398 /** @return Interpolation style that should be used for control parameter \a p */
399 Evoral::ControlList::InterpolationStyle
400 MidiSource::interpolation_of (Evoral::Parameter p) const
402 InterpolationStyleMap::const_iterator i = _interpolation_style.find (p);
403 if (i == _interpolation_style.end()) {
404 return EventTypeMap::instance().interpolation_of (p);
411 MidiSource::automation_state_of (Evoral::Parameter p) const
413 AutomationStateMap::const_iterator i = _automation_state.find (p);
414 if (i == _automation_state.end()) {
415 /* default to `play', otherwise if MIDI is recorded /
416 imported with controllers etc. they are by default
417 not played back, which is a little surprising.
425 /** Set interpolation style to be used for a given parameter. This change will be
426 * propagated to anyone who needs to know.
429 MidiSource::set_interpolation_of (Evoral::Parameter p, Evoral::ControlList::InterpolationStyle s)
431 if (interpolation_of (p) == s) {
435 if (EventTypeMap::instance().interpolation_of (p) == s) {
436 /* interpolation type is being set to the default, so we don't need a note in our map */
437 _interpolation_style.erase (p);
439 _interpolation_style[p] = s;
442 InterpolationChanged (p, s); /* EMIT SIGNAL */
446 MidiSource::set_automation_state_of (Evoral::Parameter p, AutoState s)
448 if (automation_state_of (p) == s) {
453 /* automation state is being set to the default, so we don't need a note in our map */
454 _automation_state.erase (p);
456 _automation_state[p] = s;
459 AutomationStateChanged (p, s); /* EMIT SIGNAL */
463 MidiSource::copy_interpolation_from (boost::shared_ptr<MidiSource> s)
465 copy_interpolation_from (s.get ());
469 MidiSource::copy_automation_state_from (boost::shared_ptr<MidiSource> s)
471 copy_automation_state_from (s.get ());
475 MidiSource::copy_interpolation_from (MidiSource* s)
477 _interpolation_style = s->_interpolation_style;
479 /* XXX: should probably emit signals here */
483 MidiSource::copy_automation_state_from (MidiSource* s)
485 _automation_state = s->_automation_state;
487 /* XXX: should probably emit signals here */