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/audioengine.h>
39 #include <ardour/event_type_map.h>
40 #include <ardour/midi_model.h>
41 #include <ardour/midi_ring_buffer.h>
42 #include <ardour/session.h>
43 #include <ardour/smf_source.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 const uint64_t start_ticks = (uint64_t)(_converter.from(start) * ppqn());
149 if (_last_read_end == 0 || start != _last_read_end) {
150 cerr << "SMFSource::read_unlocked seeking to " << start << endl;
151 Evoral::SMF::seek_to_start();
152 while (time < start_ticks) {
153 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
154 if (ret == -1) { // EOF
155 _last_read_end = start + dur;
158 time += ev_delta_t; // accumulate delta time
162 _last_read_end = start + dur;
165 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
166 if (ret == -1) { // EOF
170 time += ev_delta_t; // accumulate delta time
172 if (ret == 0) { // meta-event (skipped, just accumulate time)
176 ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
178 assert(time >= start_ticks);
179 const nframes_t ev_frame_time = _converter.to(time / (double)ppqn()) + stamp_offset;
181 if (ev_frame_time < start + dur) {
182 dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
187 _read_data_count += ev_size;
189 if (ev_size > scratch_size) {
190 scratch_size = ev_size;
192 ev_size = scratch_size; // ensure read_event only allocates if necessary
198 /** All stamps in audio frames */
200 SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& src, nframes_t dur)
202 _write_data_count = 0;
205 Evoral::EventType type;
208 size_t buf_capacity = 4;
209 uint8_t* buf = (uint8_t*)malloc(buf_capacity);
211 if (_model && ! _model->writing()) {
212 _model->start_write();
215 Evoral::MIDIEvent<nframes_t> ev(0, 0.0, 4, NULL, true);
218 bool ret = src.peek_time(&time);
219 if (!ret || time - _timeline_position > _length + dur) {
223 ret = src.read_prefix(&time, &type, &size);
228 if (size > buf_capacity) {
230 buf = (uint8_t*)realloc(buf, size);
233 ret = src.read_contents(size, buf);
235 cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
239 assert(time >= _timeline_position);
240 time -= _timeline_position;
242 ev.set(buf, size, time);
243 ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
244 if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
245 cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type "
246 << std::hex << int(ev.buffer()[0]) << endl;
250 append_event_unlocked_frames(ev);
254 set_default_controls_interpolation();
257 Evoral::SMF::flush();
260 const nframes_t oldlen = _length;
261 update_length(oldlen, dur);
263 ViewDataRangeReady(_timeline_position + oldlen, dur); /* EMIT SIGNAL */
269 /** Append an event with a timestamp in beats (double) */
271 SMFSource::append_event_unlocked_beats(const Evoral::Event<double>& ev)
273 if (ev.size() == 0) {
277 /*printf("SMFSource: %s - append_event_unlocked_beats time = %lf, size = %u, data = ",
278 name().c_str(), ev.time(), ev.size());
279 for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
281 assert(ev.time() >= 0);
282 if (ev.time() < _last_ev_time_beats) {
283 cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
287 const double delta_time_beats = ev.time() - _last_ev_time_beats;
288 const uint32_t delta_time_ticks = (uint32_t)lrint(delta_time_beats * (double)ppqn());
290 Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer());
291 _last_ev_time_beats = ev.time();
293 _write_data_count += ev.size();
300 /** Append an event with a timestamp in frames (nframes_t) */
302 SMFSource::append_event_unlocked_frames(const Evoral::Event<nframes_t>& ev)
304 if (ev.size() == 0) {
308 /*printf("SMFSource: %s - append_event_unlocked_frames time = %u, size = %u, data = ",
309 name().c_str(), ev.time(), ev.size());
310 for (size_t i=0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
312 assert(ev.time() >= 0);
313 if (ev.time() < _last_ev_time_frames) {
314 cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
318 const nframes_t delta_time_frames = ev.time() - _last_ev_time_frames;
319 const double delta_time_beats = _converter.from(delta_time_frames);
320 const uint32_t delta_time_ticks = (uint32_t)(lrint(delta_time_beats * (double)ppqn()));
322 Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer());
323 _last_ev_time_frames = ev.time();
325 _write_data_count += ev.size();
328 const double ev_time_beats = _converter.from(ev.time());
329 const Evoral::Event<double> beat_ev(
330 ev.event_type(), ev_time_beats, ev.size(), (uint8_t*)ev.buffer());
331 _model->append(beat_ev);
337 SMFSource::get_state ()
339 XMLNode& root (MidiSource::get_state());
341 snprintf (buf, sizeof (buf), "0x%x", (int)_flags);
342 root.add_property ("flags", buf);
347 SMFSource::set_state (const XMLNode& node)
349 const XMLProperty* prop;
351 if (MidiSource::set_state (node)) {
355 if ((prop = node.property (X_("flags"))) != 0) {
357 sscanf (prop->value().c_str(), "0x%x", &ival);
358 _flags = Flag (ival);
363 assert(_name.find("/") == string::npos);
369 SMFSource::mark_for_remove ()
374 _flags = Flag (_flags | RemoveAtDestroy);
378 SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
380 MidiSource::mark_streaming_midi_write_started (mode, start_frame);
381 Evoral::SMF::begin_write ();
382 _last_ev_time_beats = 0.0;
383 _last_ev_time_frames = 0;
387 SMFSource::mark_streaming_write_completed ()
389 MidiSource::mark_streaming_write_completed();
395 _model->set_edited(false);
396 Evoral::SMF::end_write ();
400 SMFSource::mark_take (string id)
408 SMFSource::move_to_trash (const string trash_dir_name)
414 /* don't move the file across filesystems, just stick it in the
415 trash_dir_name directory on whichever filesystem it was already on
418 Glib::ustring newpath;
419 newpath = Glib::path_get_dirname (_path);
420 newpath = Glib::path_get_dirname (newpath);
422 newpath += string("/") + trash_dir_name + "/";
423 newpath += Glib::path_get_basename (_path);
425 /* the new path already exists, try versioning */
426 if (access (newpath.c_str(), F_OK) == 0) {
427 char buf[PATH_MAX+1];
431 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version);
434 while (access (newpath_v.c_str(), F_OK) == 0 && version < 999) {
435 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), ++version);
439 if (version == 999) {
440 PBD::error << string_compose (
441 _("there are already 1000 files with names like %1; versioning discontinued"),
448 if (::rename (_path.c_str(), newpath.c_str()) != 0) {
449 PBD::error << string_compose (
450 _("cannot rename midi file source from %1 to %2 (%3)"),
451 _path, newpath, strerror (errno)) << endmsg;
457 /* file can not be removed twice, since the operation is not idempotent */
458 _flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
464 SMFSource::safe_file_extension(const Glib::ustring& file)
466 return (file.rfind(".mid") != Glib::ustring::npos);
469 // FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
471 SMFSource::find (string pathstr, bool must_exist, bool& isnew)
477 if (pathstr[0] != '/') {
479 /* non-absolute pathname: find pathstr in search path */
486 if (_search_path.length() == 0) {
487 PBD::error << _("FileSource: search path not set") << endmsg;
491 split (_search_path, dirs, ':');
495 for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
497 if (fullpath[fullpath.length()-1] != '/') {
502 if (access (fullpath.c_str(), R_OK) == 0) {
510 PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg;
513 } else if (cnt == 0) {
516 PBD::error << string_compose(_("Filesource: cannot find required file (%1): while searching %2"), pathstr, _search_path) << endmsg;
529 /* external files and/or very very old style sessions include full paths */
532 _name = pathstr.substr (pathstr.find_last_of ('/') + 1);
534 if (access (_path.c_str(), R_OK) != 0) {
536 /* file does not exist or we cannot read it */
539 PBD::error << string_compose(_("Filesource: cannot find required file (%1): %2"), _path, strerror (errno)) << endmsg;
543 if (errno != ENOENT) {
544 PBD::error << string_compose(_("Filesource: cannot check for existing file (%1): %2"), _path, strerror (errno)) << endmsg;
566 SMFSource::set_search_path (string p)
573 SMFSource::set_allow_remove_if_empty (bool yn)
576 _allow_remove_if_empty = yn;
581 SMFSource::set_source_name (string newname, bool destructive)
583 //Glib::Mutex::Lock lm (_lock); FIXME
584 string oldpath = _path;
585 string newpath = Session::change_midi_path_by_name (oldpath, _name, newname, destructive);
587 if (newpath.empty()) {
588 PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
592 if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
593 PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg;
597 _name = Glib::path_get_basename (newpath);
604 SMFSource::load_model(bool lock, bool force_reload)
611 Glib::Mutex::Lock lm (_lock);
614 if (_model && !force_reload) {
619 _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
620 cerr << _name << " loaded new model " << _model.get() << endl;
622 cerr << _name << " reloading model " << _model.get()
623 << " (" << _model->n_notes() << " notes)" <<endl;
627 _model->start_write();
628 Evoral::SMF::seek_to_start();
630 uint64_t time = 0; /* in SMF ticks */
631 Evoral::Event<double> ev;
633 size_t scratch_size = 0; // keep track of scratch and minimize reallocs
635 uint32_t delta_t = 0;
639 while ((ret = read_event(&delta_t, &size, &buf)) >= 0) {
641 ev.set(buf, size, time / (double)ppqn());
643 if (ret > 0) { // didn't skip (meta) event
644 ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
648 if (ev.size() > scratch_size) {
649 scratch_size = ev.size();
651 ev.size() = scratch_size; // ensure read_event only allocates if necessary
654 set_default_controls_interpolation();
656 _model->end_write(false);
657 _model->set_edited(false);
659 _model_iter = _model->begin();
664 #define LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY 0
667 SMFSource::set_default_controls_interpolation()
669 // set interpolation style to defaults, can be changed by the GUI later
670 Evoral::ControlSet::Controls controls = _model->controls();
671 for (Evoral::ControlSet::Controls::iterator c = controls.begin(); c != controls.end(); ++c) {
672 (*c).second->list()->set_interpolation(
673 // to be enabled when ControlList::rt_safe_earliest_event_linear_unlocked works properly
674 #if LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY
675 EventTypeMap::instance().interpolation_of((*c).first));
677 Evoral::ControlList::Discrete);
684 SMFSource::destroy_model()
686 //cerr << _name << " destroying model " << _model.get() << endl;
691 SMFSource::flush_midi()
693 Evoral::SMF::end_write();