2 Copyright (C) 2006 Paul Davis
3 Written by Dave Robillard, 2006
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.
31 #include "pbd/xml++.h"
32 #include "pbd/pthread_utils.h"
33 #include "pbd/basename.h"
35 #include "ardour/audioengine.h"
36 #include "ardour/midi_model.h"
37 #include "ardour/midi_ring_buffer.h"
38 #include "ardour/midi_state_tracker.h"
39 #include "ardour/midi_source.h"
40 #include "ardour/session.h"
41 #include "ardour/session_directory.h"
42 #include "ardour/source_factory.h"
43 #include "ardour/tempo.h"
48 using namespace ARDOUR;
51 sigc::signal<void,MidiSource *> MidiSource::MidiSourceCreated;
53 MidiSource::MidiSource (Session& s, string name, Source::Flag flags)
54 : Source(s, DataType::MIDI, name, flags)
56 , _write_data_count(0)
58 , _model_iter_valid(false)
65 MidiSource::MidiSource (Session& s, const XMLNode& node)
68 , _write_data_count(0)
70 , _model_iter_valid(false)
76 _write_data_count = 0;
78 if (set_state (node, Stateful::loading_state_version)) {
79 throw failed_constructor();
83 MidiSource::~MidiSource ()
88 MidiSource::get_state ()
90 XMLNode& node (Source::get_state());
92 if (_captured_for.length()) {
93 node.add_property ("captured-for", _captured_for);
100 MidiSource::set_state (const XMLNode& node, int /*version*/)
102 const XMLProperty* prop;
104 if ((prop = node.property ("captured-for")) != 0) {
105 _captured_for = prop->value();
112 MidiSource::length (sframes_t pos) const
114 BeatsFramesConverter converter(_session, pos);
115 return converter.to(_length_beats);
119 MidiSource::update_length (sframes_t /*pos*/, sframes_t /*cnt*/)
121 // You're not the boss of me!
125 MidiSource::invalidate ()
127 _model_iter_valid = false;
128 _model_iter.invalidate();
132 MidiSource::midi_read (MidiRingBuffer<nframes_t>& dst, sframes_t source_start,
133 sframes_t start, nframes_t cnt,
134 sframes_t stamp_offset, sframes_t negative_stamp_offset,
135 MidiStateTracker* tracker) const
137 Glib::Mutex::Lock lm (_lock);
139 BeatsFramesConverter converter(_session, source_start);
142 //cerr << "READ @ " << start << " * " << cnt << " (source @ " << source_start << " {" << endl;
143 #define BEATS_TO_FRAMES(t) (converter.to(t) + stamp_offset - negative_stamp_offset)
145 Evoral::Sequence<double>::const_iterator& i = _model_iter;
147 // If the cached iterator is invalid, search for the first event past start
148 if (_last_read_end == 0 || start != _last_read_end || !_model_iter_valid) {
149 for (i = _model->begin(); i != _model->end(); ++i) {
150 if (BEATS_TO_FRAMES(i->time()) >= start) {
154 _model_iter_valid = true;
157 _last_read_end = start + cnt;
159 // Read events up to source_start + start + cnt
160 for (; i != _model->end(); ++i) {
161 const sframes_t time_frames = BEATS_TO_FRAMES(i->time());
162 //cerr << "Read? " << time_frames << " < " << source_start + start + cnt << endl;
163 if (time_frames < source_start + start + cnt) {
164 //cerr << "Read @ " << time_frames << endl;
165 dst.write(time_frames, i->event_type(), i->size(), i->buffer());
167 Evoral::MIDIEvent<Evoral::MusicalTime>& ev (*(Evoral::MIDIEvent<Evoral::MusicalTime>*) (&(*i)));
168 if (ev.is_note_on()) {
169 tracker->add (ev.note(), ev.channel());
170 } else if (ev.is_note_off()) {
171 tracker->remove (ev.note(), ev.channel());
175 //cerr << "End" << endl;
179 //cerr << "}" << endl;
182 return read_unlocked (dst, source_start, start, cnt, stamp_offset, negative_stamp_offset, tracker);
187 MidiSource::midi_write (MidiRingBuffer<nframes_t>& source, sframes_t source_start, nframes_t duration)
189 Glib::Mutex::Lock lm (_lock);
190 const nframes_t ret = write_unlocked (source, source_start, duration);
191 _last_write_end += duration;
196 MidiSource::file_changed (string path)
198 struct stat stat_file;
200 int e1 = stat (path.c_str(), &stat_file);
206 MidiSource::mark_streaming_midi_write_started (NoteMode mode, sframes_t start_frame)
208 set_timeline_position(start_frame);
211 _model->set_note_mode(mode);
212 _model->start_write();
215 _last_write_end = start_frame;
220 MidiSource::mark_streaming_write_started ()
222 NoteMode note_mode = _model ? _model->note_mode() : Sustained;
223 mark_streaming_midi_write_started(note_mode, _session.transport_frame());
227 MidiSource::mark_streaming_write_completed ()
230 _model->end_write(false);
237 MidiSource::session_saved()
241 if (_model && _model->edited()) {
243 const string basename = PBD::basename_nosuffix(_name);
244 string::size_type last_dash = basename.find_last_of("-");
245 if (last_dash == string::npos || last_dash == basename.find_first_of("-")) {
246 newname = basename + "-1";
248 stringstream ss(basename.substr(last_dash+1));
249 unsigned write_count = 0;
251 // cerr << "WRITE COUNT: " << write_count << endl;
252 ++write_count; // start at 1
254 ss << basename.substr(0, last_dash) << "-" << write_count;
258 string newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid";
260 boost::shared_ptr<MidiSource> newsrc = boost::dynamic_pointer_cast<MidiSource>(
261 SourceFactory::createWritable(DataType::MIDI, _session,
262 newpath, true, false, _session.frame_rate()));
264 newsrc->set_timeline_position(_timeline_position);
265 _model->write_to(newsrc);
267 // cyclic dependency here, ugly :(
268 newsrc->set_model(_model);
269 _model->set_midi_source(newsrc.get());
271 newsrc->flush_midi();
273 Switched.emit(newsrc);
278 MidiSource::set_note_mode(NoteMode mode)
281 _model->set_note_mode(mode);