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 SMFSource::SMFSource(Session& s, std::string path, Flag flags)
52 : MidiSource(s, region_name_from_path(path, false))
55 , _allow_remove_if_empty(true)
58 /* Constructor used for new internal-to-session files. File cannot exist. */
60 if (init(path, false)) {
61 throw failed_constructor ();
65 throw failed_constructor ();
68 assert(_name.find("/") == string::npos);
71 SMFSource::SMFSource(Session& s, const XMLNode& node)
73 , _flags(Flag(Writable|CanRename))
74 , _allow_remove_if_empty(true)
77 /* Constructor used for existing internal-to-session files. File must exist. */
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);
150 const double frames_per_beat = tempo.frames_per_beat(
151 _session.engine().frame_rate(),
152 _session.tempo_map().meter_at(_timeline_position));
154 const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * ppqn());
156 if (_last_read_end == 0 || start != _last_read_end) {
157 cerr << "SMFSource::read_unlocked seeking to " << start << endl;
158 Evoral::SMF::seek_to_start();
159 while (time < start_ticks) {
160 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
161 if (ret == -1) { // EOF
162 _last_read_end = start + dur;
165 time += ev_delta_t; // accumulate delta time
169 _last_read_end = start + dur;
171 while (!Evoral::SMF::eof()) {
172 ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
173 if (ret == -1) { // EOF
177 ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
179 time += ev_delta_t; // accumulate delta time
181 if (ret == 0) { // meta-event (skipped, just accumulate time)
185 assert(time >= start_ticks);
186 const nframes_t ev_frame_time = (nframes_t)(
187 ((time / (double)ppqn()) * frames_per_beat)) + stamp_offset;
189 if (ev_frame_time < start + dur) {
190 dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
195 _read_data_count += ev_size;
197 if (ev_size > scratch_size) {
198 scratch_size = ev_size;
200 ev_size = scratch_size; // ensure read_event only allocates if necessary
206 /** All stamps in audio frames */
208 SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& src, nframes_t cnt)
210 _write_data_count = 0;
213 Evoral::EventType type;
216 size_t buf_capacity = 4;
217 uint8_t* buf = (uint8_t*)malloc(buf_capacity);
219 if (_model && ! _model->writing()) {
220 _model->start_write();
223 Evoral::MIDIEvent<double> ev(0, 0.0, 4, NULL, true);
226 bool ret = src.peek_time(&time);
227 if (!ret || time - _timeline_position > _length + cnt) {
231 ret = src.read_prefix(&time, &type, &size);
236 if (size > buf_capacity) {
238 buf = (uint8_t*)realloc(buf, size);
241 ret = src.read_contents(size, buf);
243 cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
247 assert(time >= _timeline_position);
248 time -= _timeline_position;
250 ev.set(buf, size, time);
251 ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
252 if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
253 cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type "
254 << std::hex << int(ev.buffer()[0]) << endl;
258 append_event_unlocked(Frames, ev);
266 set_default_controls_interpolation();
269 Evoral::SMF::flush();
272 const nframes_t oldlen = _length;
273 update_length(oldlen, cnt);
275 ViewDataRangeReady(_timeline_position + oldlen, cnt); /* EMIT SIGNAL */
282 SMFSource::append_event_unlocked(EventTimeUnit unit, const Evoral::Event<double>& ev)
284 if (ev.size() == 0) {
285 cerr << "SMFSource: Warning: skipping empty event" << endl;
290 printf("SMFSource: %s - append_event_unlocked time = %lf, size = %u, data = ",
291 name().c_str(), ev.time(), ev.size());
292 for (size_t i=0; i < ev.size(); ++i) {
293 printf("%X ", ev.buffer()[i]);
297 assert(ev.time() >= 0);
299 if (ev.time() < last_event_time()) {
300 cerr << "SMFSource: Warning: Skipping event with ev.time() < last.time()" << endl;
304 uint32_t delta_time = 0;
306 if (unit == Frames) {
307 // FIXME: assumes tempo never changes after start
308 const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
309 _session.engine().frame_rate(),
310 _session.tempo_map().meter_at(_timeline_position));
312 delta_time = (uint32_t)((ev.time() - last_event_time()) / frames_per_beat * ppqn());
314 assert(unit == Beats);
315 delta_time = (uint32_t)((ev.time() - last_event_time()) * ppqn());
318 Evoral::SMF::append_event_delta(delta_time, ev.size(), ev.buffer());
319 _last_ev_time = ev.time();
321 _write_data_count += ev.size();
326 SMFSource::get_state ()
328 XMLNode& root (MidiSource::get_state());
330 snprintf (buf, sizeof (buf), "0x%x", (int)_flags);
331 root.add_property ("flags", buf);
336 SMFSource::set_state (const XMLNode& node)
338 const XMLProperty* prop;
340 if (MidiSource::set_state (node)) {
344 if ((prop = node.property (X_("flags"))) != 0) {
346 sscanf (prop->value().c_str(), "0x%x", &ival);
347 _flags = Flag (ival);
352 assert(_name.find("/") == string::npos);
358 SMFSource::mark_for_remove ()
363 _flags = Flag (_flags | RemoveAtDestroy);
367 SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
369 MidiSource::mark_streaming_midi_write_started (mode, start_frame);
370 Evoral::SMF::begin_write ();
375 SMFSource::mark_streaming_write_completed ()
377 MidiSource::mark_streaming_write_completed();
383 _model->set_edited(false);
384 Evoral::SMF::end_write ();
388 SMFSource::mark_take (string id)
396 SMFSource::move_to_trash (const string trash_dir_name)
404 /* don't move the file across filesystems, just
405 stick it in the 'trash_dir_name' directory
406 on whichever filesystem it was already on.
409 newpath = Glib::path_get_dirname (_path);
410 newpath = Glib::path_get_dirname (newpath);
413 newpath += trash_dir_name;
415 newpath += Glib::path_get_basename (_path);
417 if (access (newpath.c_str(), F_OK) == 0) {
419 /* the new path already exists, try versioning */
421 char buf[PATH_MAX+1];
425 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version);
428 while (access (newpath_v.c_str(), F_OK) == 0 && version < 999) {
429 snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), ++version);
433 if (version == 999) {
434 PBD::error << string_compose (_("there are already 1000 files with names like %1; versioning discontinued"),
443 /* it doesn't exist, or we can't read it or something */
447 if (::rename (_path.c_str(), newpath.c_str()) != 0) {
448 PBD::error << string_compose (_("cannot rename midi file source from %1 to %2 (%3)"),
449 _path, newpath, strerror (errno))
454 /* file can not be removed twice, since the operation is not idempotent */
456 _flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
462 SMFSource::safe_file_extension(const Glib::ustring& file)
464 return (file.rfind(".mid") != Glib::ustring::npos);
467 // FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
469 SMFSource::find (string pathstr, bool must_exist, bool& isnew)
471 string::size_type pos;
476 /* clean up PATH:CHANNEL notation so that we are looking for the correct path */
478 if ((pos = pathstr.find_last_of (':')) == string::npos) {
481 pathstr = pathstr.substr (0, pos);
484 if (pathstr[0] != '/') {
486 /* non-absolute pathname: find pathstr in search path */
493 if (_search_path.length() == 0) {
494 PBD::error << _("FileSource: search path not set") << endmsg;
498 split (_search_path, dirs, ':');
502 for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
505 if (fullpath[fullpath.length()-1] != '/') {
510 if (access (fullpath.c_str(), R_OK) == 0) {
518 PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg;
521 } else if (cnt == 0) {
524 PBD::error << string_compose(_("Filesource: cannot find required file (%1): while searching %2"), pathstr, _search_path) << endmsg;
537 /* external files and/or very very old style sessions include full paths */
540 _name = pathstr.substr (pathstr.find_last_of ('/') + 1);
542 if (access (_path.c_str(), R_OK) != 0) {
544 /* file does not exist or we cannot read it */
547 PBD::error << string_compose(_("Filesource: cannot find required file (%1): %2"), _path, strerror (errno)) << endmsg;
551 if (errno != ENOENT) {
552 PBD::error << string_compose(_("Filesource: cannot check for existing file (%1): %2"), _path, strerror (errno)) << endmsg;
574 SMFSource::set_search_path (string p)
581 SMFSource::set_allow_remove_if_empty (bool yn)
584 _allow_remove_if_empty = yn;
589 SMFSource::set_source_name (string newname, bool destructive)
591 //Glib::Mutex::Lock lm (_lock); FIXME
592 string oldpath = _path;
593 string newpath = Session::change_midi_path_by_name (oldpath, _name, newname, destructive);
595 if (newpath.empty()) {
596 PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
600 if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
601 PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg;
605 _name = Glib::path_get_basename (newpath);
612 SMFSource::load_model(bool lock, bool force_reload)
619 Glib::Mutex::Lock lm (_lock);
622 if (_model && !force_reload && !_model->empty()) {
627 _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
628 cerr << _name << " loaded new model " << _model.get() << endl;
630 cerr << _name << " reloading model " << _model.get()
631 << " (" << _model->n_notes() << " notes)" <<endl;
635 _model->start_write();
636 Evoral::SMF::seek_to_start();
638 uint64_t time = 0; /* in SMF ticks */
639 Evoral::Event<double> ev;
641 size_t scratch_size = 0; // keep track of scratch and minimize reallocs
643 // FIXME: assumes tempo never changes after start
644 const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
646 const double frames_per_beat = tempo.frames_per_beat(
647 _session.engine().frame_rate(),
648 _session.tempo_map().meter_at(_timeline_position));
650 uint32_t delta_t = 0;
654 while ((ret = read_event(&delta_t, &size, &buf)) >= 0) {
655 ev.set(buf, size, 0.0);
658 if (ret > 0) { // didn't skip (meta) event
659 // make ev.time absolute time in frames
660 ev.time() = time * frames_per_beat / (double)ppqn();
661 ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
665 if (ev.size() > scratch_size) {
666 scratch_size = ev.size();
668 ev.size() = scratch_size; // ensure read_event only allocates if necessary
671 set_default_controls_interpolation();
673 _model->end_write(false);
674 _model->set_edited(false);
679 #define LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY 0
682 SMFSource::set_default_controls_interpolation()
684 // set interpolation style to defaults, can be changed by the GUI later
685 Evoral::ControlSet::Controls controls = _model->controls();
686 for (Evoral::ControlSet::Controls::iterator c = controls.begin(); c != controls.end(); ++c) {
687 (*c).second->list()->set_interpolation(
688 // to be enabled when ControlList::rt_safe_earliest_event_linear_unlocked works properly
689 #if LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY
690 EventTypeMap::instance().interpolation_of((*c).first));
692 Evoral::ControlList::Discrete);
699 SMFSource::destroy_model()
701 //cerr << _name << " destroying model " << _model.get() << endl;
706 SMFSource::flush_midi()
708 Evoral::SMF::end_write();