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.
28 #include <pbd/mountpoint.h>
29 #include <pbd/pathscanner.h>
30 #include <pbd/stl_delete.h>
31 #include <pbd/strsplit.h>
33 #include <glibmm/miscutils.h>
35 #include <evoral/SMFReader.hpp>
36 #include <evoral/Control.hpp>
38 #include <ardour/smf_source.h>
39 #include <ardour/session.h>
40 #include <ardour/midi_ring_buffer.h>
41 #include <ardour/tempo.h>
42 #include <ardour/audioengine.h>
43 #include <ardour/event_type_map.h>
47 using namespace ARDOUR;
49 string SMFSource::_search_path;
51 /** Constructor used for new internal-to-session files. File cannot exist. */
52 SMFSource::SMFSource(Session& s, std::string path, Flag flags)
53 : MidiSource(s, region_name_from_path(path, false))
56 , _allow_remove_if_empty(true)
57 , _last_ev_time_beats(0.0)
58 , _last_ev_time_frames(0)
60 if (init(path, false)) {
61 throw failed_constructor ();
65 throw failed_constructor ();
68 assert(_name.find("/") == string::npos);
71 /** Constructor used for existing internal-to-session files. File must exist. */
72 SMFSource::SMFSource(Session& s, const XMLNode& node)
74 , _flags(Flag(Writable|CanRename))
75 , _allow_remove_if_empty(true)
76 , _last_ev_time_beats(0.0)
77 , _last_ev_time_frames(0)
79 if (set_state(node)) {
80 throw failed_constructor ();
83 if (init(_name, true)) {
84 throw failed_constructor ();
88 throw failed_constructor ();
91 assert(_name.find("/") == string::npos);
94 SMFSource::~SMFSource ()
97 unlink (_path.c_str());
102 SMFSource::removable () const
104 return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
105 ((_flags & RemovableIfEmpty) && is_empty()));
109 SMFSource::init (string pathstr, bool must_exist)
113 if (!find (pathstr, must_exist, is_new)) {
114 cerr << "cannot find " << pathstr << " with me = " << must_exist << endl;
118 if (is_new && must_exist) {
122 assert(_name.find("/") == string::npos);
126 /** All stamps in audio frames */
128 SMFSource::read_unlocked (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t dur,
129 nframes_t stamp_offset, nframes_t negative_stamp_offset) const
131 //cerr << "SMF read_unlocked " << name() << " read "
132 //<< start << ", count=" << dur << ", offset=" << stamp_offset << endl;
135 uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
137 _read_data_count = 0;
139 // Output parameters for read_event (which will allocate scratch in buffer as needed)
140 uint32_t ev_delta_t = 0;
141 uint32_t ev_type = 0;
142 uint32_t ev_size = 0;
143 uint8_t* ev_buffer = 0;
145 size_t scratch_size = 0; // keep track of scratch to minimize reallocs
147 // FIXME: assumes tempo never changes after start
148 const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
149 const double frames_per_beat = tempo.frames_per_beat(
150 _session.engine().frame_rate(),
151 _session.tempo_map().meter_at(_timeline_position));
153 const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * ppqn());
155 if (_last_read_end == 0 || start != _last_read_end) {
156 cerr << "SMFSource::read_unlocked seeking to " << start << endl;
157 Evoral::SMF::seek_to_start();
158 while (time < start_ticks) {
159 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
160 if (ret == -1) { // EOF
161 _last_read_end = start + dur;
164 time += ev_delta_t; // accumulate delta time
168 _last_read_end = start + dur;
170 while (!Evoral::SMF::eof()) {
171 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
172 if (ret == -1) { // EOF
176 ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
178 time += ev_delta_t; // accumulate delta time
180 if (ret == 0) { // meta-event (skipped, just accumulate time)
184 assert(time >= start_ticks);
185 const nframes_t ev_frame_time = (nframes_t)(
186 ((time / (double)ppqn()) * frames_per_beat)) + stamp_offset;
188 if (ev_frame_time < start + dur) {
189 dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
194 _read_data_count += ev_size;
196 if (ev_size > scratch_size) {
197 scratch_size = ev_size;
199 ev_size = scratch_size; // ensure read_event only allocates if necessary
205 /** All stamps in audio frames */
207 SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& src, nframes_t dur)
209 _write_data_count = 0;
212 Evoral::EventType type;
215 size_t buf_capacity = 4;
216 uint8_t* buf = (uint8_t*)malloc(buf_capacity);
218 if (_model && ! _model->writing()) {
219 _model->start_write();
222 Evoral::MIDIEvent<nframes_t> ev(0, 0.0, 4, NULL, true);
225 bool ret = src.peek_time(&time);
226 if (!ret || time - _timeline_position > _length + dur) {
230 ret = src.read_prefix(&time, &type, &size);
235 if (size > buf_capacity) {
237 buf = (uint8_t*)realloc(buf, size);
240 ret = src.read_contents(size, buf);
242 cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
246 assert(time >= _timeline_position);
247 time -= _timeline_position;
249 ev.set(buf, size, time);
250 ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
251 if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
252 cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type "
253 << std::hex << int(ev.buffer()[0]) << endl;
257 append_event_unlocked_frames(ev);
261 set_default_controls_interpolation();
264 Evoral::SMF::flush();
267 const nframes_t oldlen = _length;
268 update_length(oldlen, dur);
270 ViewDataRangeReady(_timeline_position + oldlen, dur); /* EMIT SIGNAL */
276 /** Append an event with a timestamp in beats (double) */
278 SMFSource::append_event_unlocked_beats(const Evoral::Event<double>& ev)
280 if (ev.size() == 0) {
284 /*printf("SMFSource: %s - append_event_unlocked_beats time = %lf, size = %u, data = ",
285 name().c_str(), ev.time(), ev.size());
286 for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
288 assert(ev.time() >= 0);
289 if (ev.time() < _last_ev_time_beats) {
290 cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
294 const double delta_time_beats = ev.time() - _last_ev_time_beats;
295 const uint32_t delta_time_ticks = (uint32_t)lrint(delta_time_beats * (double)ppqn());
297 Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer());
298 _last_ev_time_beats = ev.time();
300 _write_data_count += ev.size();
307 /** Append an event with a timestamp in frames (nframes_t) */
309 SMFSource::append_event_unlocked_frames(const Evoral::Event<nframes_t>& ev)
311 if (ev.size() == 0) {
315 /*printf("SMFSource: %s - append_event_unlocked_frames time = %u, size = %u, data = ",
316 name().c_str(), ev.time(), ev.size());
317 for (size_t i=0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
319 assert(ev.time() >= 0);
320 if (ev.time() < _last_ev_time_frames) {
321 cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
325 // FIXME: assumes tempo never changes after start
326 const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
327 const double frames_per_beat = tempo.frames_per_beat(
328 _session.engine().frame_rate(),
329 _session.tempo_map().meter_at(_timeline_position));
331 uint32_t delta_time = (uint32_t)((ev.time() - _last_ev_time_frames)
332 / frames_per_beat * (double)ppqn());
334 Evoral::SMF::append_event_delta(delta_time, ev.size(), ev.buffer());
335 _last_ev_time_frames = ev.time();
337 _write_data_count += ev.size();
340 double beat_time = ev.time() / frames_per_beat;
341 const Evoral::Event<double> beat_ev(
342 ev.event_type(), beat_time, ev.size(), (uint8_t*)ev.buffer());
343 _model->append(beat_ev);
349 SMFSource::get_state ()
351 XMLNode& root (MidiSource::get_state());
353 snprintf (buf, sizeof (buf), "0x%x", (int)_flags);
354 root.add_property ("flags", buf);
359 SMFSource::set_state (const XMLNode& node)
361 const XMLProperty* prop;
363 if (MidiSource::set_state (node)) {
367 if ((prop = node.property (X_("flags"))) != 0) {
369 sscanf (prop->value().c_str(), "0x%x", &ival);
370 _flags = Flag (ival);
375 assert(_name.find("/") == string::npos);
381 SMFSource::mark_for_remove ()
386 _flags = Flag (_flags | RemoveAtDestroy);
390 SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
392 MidiSource::mark_streaming_midi_write_started (mode, start_frame);
393 Evoral::SMF::begin_write ();
394 _last_ev_time_beats = 0.0;
395 _last_ev_time_frames = 0;
399 SMFSource::mark_streaming_write_completed ()
401 MidiSource::mark_streaming_write_completed();
407 _model->set_edited(false);
408 Evoral::SMF::end_write ();
412 SMFSource::mark_take (string id)
420 SMFSource::move_to_trash (const string trash_dir_name)
426 /* don't move the file across filesystems, just stick it in the
427 trash_dir_name directory on whichever filesystem it was already on
430 Glib::ustring newpath;
431 newpath = Glib::path_get_dirname (_path);
432 newpath = Glib::path_get_dirname (newpath);
434 newpath += string("/") + trash_dir_name + "/";
435 newpath += Glib::path_get_basename (_path);
437 /* the new path already exists, try versioning */
438 if (access (newpath.c_str(), F_OK) == 0) {
439 char buf[PATH_MAX+1];
443 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version);
446 while (access (newpath_v.c_str(), F_OK) == 0 && version < 999) {
447 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), ++version);
451 if (version == 999) {
452 PBD::error << string_compose (
453 _("there are already 1000 files with names like %1; versioning discontinued"),
460 if (::rename (_path.c_str(), newpath.c_str()) != 0) {
461 PBD::error << string_compose (
462 _("cannot rename midi file source from %1 to %2 (%3)"),
463 _path, newpath, strerror (errno)) << endmsg;
469 /* file can not be removed twice, since the operation is not idempotent */
470 _flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
476 SMFSource::safe_file_extension(const Glib::ustring& file)
478 return (file.rfind(".mid") != Glib::ustring::npos);
481 // FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
483 SMFSource::find (string pathstr, bool must_exist, bool& isnew)
489 if (pathstr[0] != '/') {
491 /* non-absolute pathname: find pathstr in search path */
498 if (_search_path.length() == 0) {
499 PBD::error << _("FileSource: search path not set") << endmsg;
503 split (_search_path, dirs, ':');
507 for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
509 if (fullpath[fullpath.length()-1] != '/') {
514 if (access (fullpath.c_str(), R_OK) == 0) {
522 PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg;
525 } else if (cnt == 0) {
528 PBD::error << string_compose(_("Filesource: cannot find required file (%1): while searching %2"), pathstr, _search_path) << endmsg;
541 /* external files and/or very very old style sessions include full paths */
544 _name = pathstr.substr (pathstr.find_last_of ('/') + 1);
546 if (access (_path.c_str(), R_OK) != 0) {
548 /* file does not exist or we cannot read it */
551 PBD::error << string_compose(_("Filesource: cannot find required file (%1): %2"), _path, strerror (errno)) << endmsg;
555 if (errno != ENOENT) {
556 PBD::error << string_compose(_("Filesource: cannot check for existing file (%1): %2"), _path, strerror (errno)) << endmsg;
578 SMFSource::set_search_path (string p)
585 SMFSource::set_allow_remove_if_empty (bool yn)
588 _allow_remove_if_empty = yn;
593 SMFSource::set_source_name (string newname, bool destructive)
595 //Glib::Mutex::Lock lm (_lock); FIXME
596 string oldpath = _path;
597 string newpath = Session::change_midi_path_by_name (oldpath, _name, newname, destructive);
599 if (newpath.empty()) {
600 PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
604 if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
605 PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg;
609 _name = Glib::path_get_basename (newpath);
616 SMFSource::load_model(bool lock, bool force_reload)
623 Glib::Mutex::Lock lm (_lock);
626 if (_model && !force_reload && !_model->empty()) {
631 _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
632 cerr << _name << " loaded new model " << _model.get() << endl;
634 cerr << _name << " reloading model " << _model.get()
635 << " (" << _model->n_notes() << " notes)" <<endl;
639 _model->start_write();
640 Evoral::SMF::seek_to_start();
642 uint64_t time = 0; /* in SMF ticks */
643 Evoral::Event<double> ev;
645 size_t scratch_size = 0; // keep track of scratch and minimize reallocs
647 uint32_t delta_t = 0;
651 while ((ret = read_event(&delta_t, &size, &buf)) >= 0) {
653 ev.set(buf, size, time / (double)ppqn());
655 if (ret > 0) { // didn't skip (meta) event
656 ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
660 if (ev.size() > scratch_size) {
661 scratch_size = ev.size();
663 ev.size() = scratch_size; // ensure read_event only allocates if necessary
666 set_default_controls_interpolation();
668 _model->end_write(false);
669 _model->set_edited(false);
674 #define LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY 0
677 SMFSource::set_default_controls_interpolation()
679 // set interpolation style to defaults, can be changed by the GUI later
680 Evoral::ControlSet::Controls controls = _model->controls();
681 for (Evoral::ControlSet::Controls::iterator c = controls.begin(); c != controls.end(); ++c) {
682 (*c).second->list()->set_interpolation(
683 // to be enabled when ControlList::rt_safe_earliest_event_linear_unlocked works properly
684 #if LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY
685 EventTypeMap::instance().interpolation_of((*c).first));
687 Evoral::ControlList::Discrete);
694 SMFSource::destroy_model()
696 //cerr << _name << " destroying model " << _model.get() << endl;
701 SMFSource::flush_midi()
703 Evoral::SMF::end_write();