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)
59 , _model_iter_valid(false)
63 , _capture_loop_length(0)
67 MidiSource::MidiSource (Session& s, const XMLNode& node)
70 , _model_iter_valid(false)
74 , _capture_loop_length(0)
76 if (set_state (node, Stateful::loading_state_version)) {
77 throw failed_constructor();
81 MidiSource::~MidiSource ()
86 MidiSource::get_state ()
88 XMLNode& node (Source::get_state());
90 if (_captured_for.length()) {
91 node.add_property ("captured-for", _captured_for);
94 for (InterpolationStyleMap::const_iterator i = _interpolation_style.begin(); i != _interpolation_style.end(); ++i) {
95 XMLNode* child = node.add_child (X_("InterpolationStyle"));
96 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
97 child->add_property (X_("style"), enum_2_string (i->second));
100 for (AutomationStateMap::const_iterator i = _automation_state.begin(); i != _automation_state.end(); ++i) {
101 XMLNode* child = node.add_child (X_("AutomationState"));
102 child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
103 child->add_property (X_("state"), enum_2_string (i->second));
110 MidiSource::set_state (const XMLNode& node, int /*version*/)
112 const XMLProperty* prop;
113 if ((prop = node.property ("captured-for")) != 0) {
114 _captured_for = prop->value();
117 XMLNodeList children = node.children ();
118 for (XMLNodeConstIterator i = children.begin(); i != children.end(); ++i) {
119 if ((*i)->name() == X_("InterpolationStyle")) {
120 if ((prop = (*i)->property (X_("parameter"))) == 0) {
121 error << _("Missing parameter property on InterpolationStyle") << endmsg;
124 Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
126 if ((prop = (*i)->property (X_("style"))) == 0) {
127 error << _("Missing style property on InterpolationStyle") << endmsg;
130 Evoral::ControlList::InterpolationStyle s = static_cast<Evoral::ControlList::InterpolationStyle>(
131 string_2_enum (prop->value(), s));
132 set_interpolation_of (p, s);
134 } else if ((*i)->name() == X_("AutomationState")) {
135 if ((prop = (*i)->property (X_("parameter"))) == 0) {
136 error << _("Missing parameter property on AutomationState") << endmsg;
139 Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
141 if ((prop = (*i)->property (X_("state"))) == 0) {
142 error << _("Missing state property on AutomationState") << endmsg;
145 AutoState s = static_cast<AutoState> (string_2_enum (prop->value(), s));
146 set_automation_state_of (p, s);
154 MidiSource::empty () const
156 return _length_beats == 0;
160 MidiSource::length (framepos_t pos) const
162 if (_length_beats == 0) {
166 BeatsFramesConverter converter(_session.tempo_map(), pos);
167 return converter.to(_length_beats);
171 MidiSource::update_length (framecnt_t)
173 // You're not the boss of me!
177 MidiSource::invalidate ()
179 _model_iter_valid = false;
180 _model_iter.invalidate();
184 MidiSource::midi_read (Evoral::EventSink<framepos_t>& dst,
185 framepos_t source_start,
188 MidiStateTracker* tracker,
189 const std::set<Evoral::Parameter>& filtered) const
191 Glib::Threads::Mutex::Lock lm (_lock);
193 BeatsFramesConverter converter(_session.tempo_map(), source_start);
195 DEBUG_TRACE (DEBUG::MidiSourceIO,
196 string_compose ("MidiSource::midi_read() %5 sstart %1 start %2 cnt %3 tracker %4\n",
197 source_start, start, cnt, tracker, name()));
200 // Find appropriate model iterator
201 Evoral::Sequence<double>::const_iterator& i = _model_iter;
202 if (_last_read_end == 0 || start != _last_read_end || !_model_iter_valid) {
203 // Cached iterator is invalid, search for the first event past start
204 i = _model->begin(converter.from(start), false, filtered);
205 _model_iter_valid = true;
208 _last_read_end = start + cnt;
210 // Copy events in [start, start + cnt) into dst
211 for (; i != _model->end(); ++i) {
212 const framecnt_t time_frames = converter.to(i->time());
213 if (time_frames < start + cnt) {
214 // Offset by source start to convert event time to session time
215 dst.write (time_frames + source_start, i->event_type(), i->size(), i->buffer());
217 DEBUG_TRACE (DEBUG::MidiSourceIO,
218 string_compose ("%1: add event @ %2 type %3 size %4\n",
219 _name, time_frames + source_start, i->event_type(), i->size()));
225 DEBUG_TRACE (DEBUG::MidiSourceIO,
226 string_compose ("%1: reached end with event @ %2 vs. %3\n",
227 _name, time_frames, start+cnt));
233 return read_unlocked (dst, source_start, start, cnt, tracker);
238 MidiSource::midi_write (MidiRingBuffer<framepos_t>& source,
239 framepos_t source_start,
242 Glib::Threads::Mutex::Lock lm (_lock);
244 const framecnt_t ret = write_unlocked (source, source_start, cnt);
246 if (cnt == max_framecnt) {
250 _capture_length += cnt;
257 MidiSource::mark_streaming_midi_write_started (NoteMode mode)
260 _model->set_note_mode (mode);
261 _model->start_write ();
268 MidiSource::mark_write_starting_now (framecnt_t position,
269 framecnt_t capture_length,
270 framecnt_t loop_length)
272 /* I'm not sure if this is the best way to approach this, but
273 _capture_length needs to be set up with the transport frame
274 when a record actually starts, as it is used by
275 SMFSource::write_unlocked to decide whether incoming notes
276 are within the correct time range.
277 mark_streaming_midi_write_started (perhaps a more logical
278 place to do this) is not called at exactly the time when
279 record starts, and I don't think it necessarily can be
280 because it is not RT-safe.
283 set_timeline_position(position);
284 _capture_length = capture_length;
285 _capture_loop_length = loop_length;
287 BeatsFramesConverter converter(_session.tempo_map(), position);
288 _length_beats = converter.from(capture_length);
292 MidiSource::mark_streaming_write_started ()
294 NoteMode note_mode = _model ? _model->note_mode() : Sustained;
295 mark_streaming_midi_write_started (note_mode);
299 MidiSource::mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::StuckNoteOption option,
300 Evoral::MusicalTime end)
303 _model->end_write (option, end);
310 MidiSource::mark_streaming_write_completed ()
312 mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::DeleteStuckNotes);
316 MidiSource::write_to (boost::shared_ptr<MidiSource> newsrc, Evoral::MusicalTime begin, Evoral::MusicalTime end)
318 newsrc->set_timeline_position (_timeline_position);
319 newsrc->copy_interpolation_from (this);
320 newsrc->copy_automation_state_from (this);
323 if (begin == Evoral::MinMusicalTime && end == Evoral::MaxMusicalTime) {
324 _model->write_to (newsrc);
326 _model->write_section_to (newsrc, begin, end);
329 error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()"));
333 newsrc->flush_midi();
335 /* force a reload of the model if the range is partial */
337 if (begin != Evoral::MinMusicalTime || end != Evoral::MaxMusicalTime) {
338 newsrc->load_model (true, true);
340 newsrc->set_model (_model);
343 /* this file is not removable (but since it is MIDI, it is mutable) */
345 boost::dynamic_pointer_cast<FileSource> (newsrc)->prevent_deletion ();
351 MidiSource::session_saved()
353 /* this writes a copy of the data to disk.
354 XXX do we need to do this every time?
357 if (_model && _model->edited()) {
358 /* The model is edited, write its contents into the current source
359 file (overwiting previous contents). */
361 /* Temporarily drop our reference to the model so that as the model
362 pushes its current state to us, we don't try to update it. */
363 boost::shared_ptr<MidiModel> mm = _model;
366 /* Flush model contents to disk. */
367 mm->sync_to_source ();
369 /* Reacquire model. */
378 MidiSource::set_note_mode(NoteMode mode)
381 _model->set_note_mode(mode);
386 MidiSource::drop_model ()
389 ModelChanged (); /* EMIT SIGNAL */
393 MidiSource::set_model (boost::shared_ptr<MidiModel> m)
396 ModelChanged (); /* EMIT SIGNAL */
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 */