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_ring_buffer.h>
37 #include <ardour/midi_source.h>
38 #include <ardour/session.h>
39 #include <ardour/session_directory.h>
40 #include <ardour/source_factory.h>
41 #include <ardour/tempo.h>
46 using namespace ARDOUR;
49 sigc::signal<void,MidiSource *> MidiSource::MidiSourceCreated;
51 MidiSource::MidiSource (Session& s, string name)
52 : Source (s, name, DataType::MIDI)
53 , _timeline_position(0)
54 , _model(new MidiModel(this))
56 , _model_iter(*_model.get(), 0.0)
60 _write_data_count = 0;
63 MidiSource::MidiSource (Session& s, const XMLNode& node)
65 , _timeline_position(0)
66 , _model(new MidiModel(this))
68 , _model_iter(*_model.get(), 0.0)
72 _write_data_count = 0;
74 if (set_state (node)) {
75 throw failed_constructor();
79 MidiSource::~MidiSource ()
84 MidiSource::get_state ()
86 XMLNode& node (Source::get_state());
88 if (_captured_for.length()) {
89 node.add_property ("captured-for", _captured_for);
96 MidiSource::set_state (const XMLNode& node)
98 const XMLProperty* prop;
100 Source::set_state (node);
102 if ((prop = node.property ("captured-for")) != 0) {
103 _captured_for = prop->value();
110 MidiSource::midi_read (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t cnt,
111 nframes_t stamp_offset, nframes_t negative_stamp_offset) const
114 Glib::Mutex::Lock lm (_lock);
116 // FIXME: assumes tempo never changes after start
117 const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
118 const double frames_per_beat = tempo.frames_per_beat(
119 _session.engine().frame_rate(),
120 _session.tempo_map().meter_at(_timeline_position));
121 #define BEATS_TO_FRAMES(t) (((t) * frames_per_beat) + stamp_offset - negative_stamp_offset)
123 Evoral::Sequence<double>::const_iterator& i = _model_iter;
125 if (_last_read_end == 0 || start != _last_read_end) {
126 cerr << "MidiSource::midi_read seeking to frame " << start << endl;
127 for (i = _model->begin(); i != _model->end(); ++i) {
128 if (BEATS_TO_FRAMES(i->time()) >= start) {
134 _last_read_end = start + cnt;
136 for (; i != _model->end(); ++i) {
137 const nframes_t time_frames = BEATS_TO_FRAMES(i->time());
138 if (time_frames < start + cnt) {
139 dst.write(time_frames, i->event_type(), i->size(), i->buffer());
146 return read_unlocked (dst, start, cnt, stamp_offset, negative_stamp_offset);
151 MidiSource::midi_write (MidiRingBuffer<nframes_t>& dst, nframes_t cnt)
153 Glib::Mutex::Lock lm (_lock);
154 return write_unlocked (dst, cnt);
158 MidiSource::file_changed (string path)
160 struct stat stat_file;
162 int e1 = stat (path.c_str(), &stat_file);
168 MidiSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
170 set_timeline_position(start_frame); // why do I have a feeling this can break somehow...
173 _model->set_note_mode(mode);
174 _model->start_write();
181 MidiSource::mark_streaming_write_started ()
184 _model->start_write();
191 MidiSource::mark_streaming_write_completed ()
194 _model->end_write(false); // FIXME: param?
201 MidiSource::session_saved()
205 if (_model && _model->edited()) {
207 const string basename = PBD::basename_nosuffix(_name);
208 string::size_type last_dash = basename.find_last_of("-");
209 if (last_dash == string::npos || last_dash == basename.find_first_of("-")) {
210 newname = basename + "-1";
212 stringstream ss(basename.substr(last_dash+1));
213 unsigned write_count = 0;
215 cerr << "WRITE COUNT: " << write_count << endl;
216 ++write_count; // start at 1
218 ss << basename.substr(0, last_dash) << "-" << write_count;
222 string newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid";
224 boost::shared_ptr<MidiSource> newsrc = boost::dynamic_pointer_cast<MidiSource>(
225 SourceFactory::createWritable(DataType::MIDI, _session, newpath, 1, 0, true));
227 newsrc->set_timeline_position(_timeline_position);
228 _model->write_to(newsrc);
230 // cyclic dependency here, ugly :(
231 newsrc->set_model(_model);
232 _model->set_midi_source(newsrc.get());
234 newsrc->flush_midi();
236 Switched.emit(newsrc);