2 Copyright (C) 2007 Paul Davis
3 Written by Dave Robillard, 2007
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.
21 #define __STDC_LIMIT_MACROS 1
27 #include <pbd/enumwriter.h>
28 #include <midi++/events.h>
30 #include <ardour/midi_model.h>
31 #include <ardour/midi_source.h>
32 #include <ardour/types.h>
33 #include <ardour/session.h>
36 using namespace ARDOUR;
39 MidiModel::MidiModel(MidiSource *s, size_t size)
41 , Automatable(s->session(), "midi model")
47 /** Start a new command.
49 * This has no side-effects on the model or Session, the returned command
50 * can be held on to for as long as the caller wishes, or discarded without
51 * formality, until apply_command is called and ownership is taken.
53 MidiModel::DeltaCommand* MidiModel::new_delta_command(const string name)
55 DeltaCommand* cmd = new DeltaCommand(_midi_source->model(), name);
61 * Ownership of cmd is taken, it must not be deleted by the caller.
62 * The command will constitute one item on the undo stack.
65 MidiModel::apply_command(Command* cmd)
67 _session.begin_reversible_command(cmd->name());
70 _session.commit_reversible_command(cmd);
77 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
78 const std::string& name)
85 MidiModel::DeltaCommand::DeltaCommand(boost::shared_ptr<MidiModel> m,
93 MidiModel::DeltaCommand::add(const boost::shared_ptr<Evoral::Note> note)
95 //cerr << "MEC: apply" << endl;
96 _removed_notes.remove(note);
97 _added_notes.push_back(note);
101 MidiModel::DeltaCommand::remove(const boost::shared_ptr<Evoral::Note> note)
103 //cerr << "MEC: remove" << endl;
104 _added_notes.remove(note);
105 _removed_notes.push_back(note);
109 MidiModel::DeltaCommand::operator()()
111 // This could be made much faster by using a priority_queue for added and
112 // removed notes (or sort here), and doing a single iteration over _model
114 // Need to reset iterator to drop the read lock it holds, or we'll deadlock
115 const bool reset_iter = (_model->_read_iter.locked());
116 double iter_time = -1.0;
119 if (_model->_read_iter.get_event_pointer().get()) {
120 iter_time = _model->_read_iter->time();
122 cerr << "MidiModel::DeltaCommand::operator(): WARNING: _read_iter points to no event" << endl;
124 _model->_read_iter = _model->end(); // drop read lock
127 assert( ! _model->_read_iter.locked());
129 _model->write_lock();
131 for (std::list< boost::shared_ptr<Evoral::Note> >::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
132 _model->add_note_unlocked(*i);
134 for (std::list< boost::shared_ptr<Evoral::Note> >::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
135 _model->remove_note_unlocked(*i);
137 _model->write_unlock();
139 if (reset_iter && iter_time != -1.0) {
140 _model->_read_iter = const_iterator(*_model.get(), iter_time);
143 _model->ContentsChanged(); /* EMIT SIGNAL */
147 MidiModel::DeltaCommand::undo()
149 // This could be made much faster by using a priority_queue for added and
150 // removed notes (or sort here), and doing a single iteration over _model
152 // Need to reset iterator to drop the read lock it holds, or we'll deadlock
153 const bool reset_iter = (_model->_read_iter.locked());
154 double iter_time = -1.0;
157 if (_model->_read_iter.get_event_pointer().get()) {
158 iter_time = _model->_read_iter->time();
160 cerr << "MidiModel::DeltaCommand::undo(): WARNING: _read_iter points to no event" << endl;
162 _model->_read_iter = _model->end(); // drop read lock
165 assert( ! _model->_read_iter.locked());
167 _model->write_lock();
169 for (std::list< boost::shared_ptr<Evoral::Note> >::iterator i = _added_notes.begin(); i
170 != _added_notes.end(); ++i)
171 _model->remove_note_unlocked(*i);
173 for (std::list< boost::shared_ptr<Evoral::Note> >::iterator i =
174 _removed_notes.begin(); i != _removed_notes.end(); ++i)
175 _model->add_note_unlocked(*i);
177 _model->write_unlock();
179 if (reset_iter && iter_time != -1.0) {
180 _model->_read_iter = const_iterator(*_model.get(), iter_time);
183 _model->ContentsChanged(); /* EMIT SIGNAL */
187 MidiModel::DeltaCommand::marshal_note(const boost::shared_ptr<Evoral::Note> note)
189 XMLNode *xml_note = new XMLNode("note");
190 ostringstream note_str(ios::ate);
191 note_str << int(note->note());
192 xml_note->add_property("note", note_str.str());
194 ostringstream channel_str(ios::ate);
195 channel_str << int(note->channel());
196 xml_note->add_property("channel", channel_str.str());
198 ostringstream time_str(ios::ate);
199 time_str << int(note->time());
200 xml_note->add_property("time", time_str.str());
202 ostringstream duration_str(ios::ate);
203 duration_str <<(unsigned int) note->duration();
204 xml_note->add_property("duration", duration_str.str());
206 ostringstream velocity_str(ios::ate);
207 velocity_str << (unsigned int) note->velocity();
208 xml_note->add_property("velocity", velocity_str.str());
213 boost::shared_ptr<Evoral::Note> MidiModel::DeltaCommand::unmarshal_note(XMLNode *xml_note)
216 istringstream note_str(xml_note->property("note")->value());
219 unsigned int channel;
220 istringstream channel_str(xml_note->property("channel")->value());
221 channel_str >> channel;
224 istringstream time_str(xml_note->property("time")->value());
227 unsigned int duration;
228 istringstream duration_str(xml_note->property("duration")->value());
229 duration_str >> duration;
231 unsigned int velocity;
232 istringstream velocity_str(xml_note->property("velocity")->value());
233 velocity_str >> velocity;
235 boost::shared_ptr<Evoral::Note> note_ptr(new Evoral::Note(channel, time, duration, note, velocity));
239 #define ADDED_NOTES_ELEMENT "added_notes"
240 #define REMOVED_NOTES_ELEMENT "removed_notes"
241 #define DELTA_COMMAND_ELEMENT "DeltaCommand"
243 int MidiModel::DeltaCommand::set_state(const XMLNode& delta_command)
245 if (delta_command.name() != string(DELTA_COMMAND_ELEMENT)) {
249 _added_notes.clear();
250 XMLNode *added_notes = delta_command.child(ADDED_NOTES_ELEMENT);
251 XMLNodeList notes = added_notes->children();
252 transform(notes.begin(), notes.end(), back_inserter(_added_notes),
253 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
255 _removed_notes.clear();
256 XMLNode *removed_notes = delta_command.child(REMOVED_NOTES_ELEMENT);
257 notes = removed_notes->children();
258 transform(notes.begin(), notes.end(), back_inserter(_removed_notes),
259 sigc::mem_fun(*this, &DeltaCommand::unmarshal_note));
264 XMLNode& MidiModel::DeltaCommand::get_state()
266 XMLNode *delta_command = new XMLNode(DELTA_COMMAND_ELEMENT);
267 delta_command->add_property("midi_source", _model->midi_source()->id().to_s());
269 XMLNode *added_notes = delta_command->add_child(ADDED_NOTES_ELEMENT);
270 for_each(_added_notes.begin(), _added_notes.end(), sigc::compose(
271 sigc::mem_fun(*added_notes, &XMLNode::add_child_nocopy),
272 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
274 XMLNode *removed_notes = delta_command->add_child(REMOVED_NOTES_ELEMENT);
275 for_each(_removed_notes.begin(), _removed_notes.end(), sigc::compose(
276 sigc::mem_fun(*removed_notes, &XMLNode::add_child_nocopy),
277 sigc::mem_fun(*this, &DeltaCommand::marshal_note)));
279 return *delta_command;
282 struct EventTimeComparator {
283 typedef const Evoral::Event* value_type;
284 inline bool operator()(const Evoral::Event& a, const Evoral::Event& b) const {
285 return a.time() >= b.time();
289 /** Write the model to a MidiSource (i.e. save the model).
290 * This is different from manually using read to write to a source in that
291 * note off events are written regardless of the track mode. This is so the
292 * user can switch a recorded track (with note durations from some instrument)
293 * to percussive, save, reload, then switch it back to sustained without
294 * destroying the original note durations.
296 bool MidiModel::write_to(boost::shared_ptr<MidiSource> source)
300 const bool old_percussive = percussive();
301 set_percussive(false);
303 for (const_iterator i = begin(); i != end(); ++i) {
304 source->append_event_unlocked(Frames, *i);
307 set_percussive(old_percussive);
315 XMLNode& MidiModel::get_state()
317 XMLNode *node = new XMLNode("MidiModel");