/*
Copyright (C) 2006 Paul Davis
- Written by Dave Robillard, 2006
+ Author: David Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/** Constructor used for new internal-to-session files. File cannot exist. */
SMFSource::SMFSource (Session& s, const string& path, Source::Flag flags)
: Source(s, DataType::MIDI, path, flags)
- , MidiSource(s, path)
- , FileSource(s, DataType::MIDI, path, flags)
+ , MidiSource(s, path, flags)
+ , FileSource(s, DataType::MIDI, path, string(), flags)
, Evoral::SMF()
, _last_ev_time_beats(0.0)
, _last_ev_time_frames(0)
, _smf_last_read_end (0)
, _smf_last_read_time (0)
{
- if (init(_path, false)) {
- throw failed_constructor ();
- }
+ /* note that origin remains empty */
- if (create(path)) {
+ if (init(_path, false)) {
throw failed_constructor ();
}
- load_model(true, true); // FIXME
+ /* file is not opened until write */
}
/** Constructor used for existing internal-to-session files. */
throw failed_constructor ();
}
- load_model(true, true); // FIXME
+ _open = true;
}
SMFSource::~SMFSource ()
}
}
+int
+SMFSource::open_for_write ()
+{
+ if (create (_path)) {
+ return -1;
+ }
+ _open = true;
+ return 0;
+}
+
/** All stamps in audio frames */
-nframes_t
-SMFSource::read_unlocked (Evoral::EventSink<nframes_t>& destination, framepos_t const source_start,
- framepos_t start, nframes_t duration,
+framecnt_t
+SMFSource::read_unlocked (Evoral::EventSink<framepos_t>& destination, framepos_t const source_start,
+ framepos_t start, framecnt_t duration,
MidiStateTracker* tracker) const
{
int ret = 0;
uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
+ if (writable() && !_open) {
+ /* nothing to read since nothing has ben written */
+ return duration;
+ }
+
DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: start %1 duration %2\n", start, duration));
_read_data_count = 0;
DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: seek to %1\n", start));
Evoral::SMF::seek_to_start();
while (time < start_ticks) {
- gint ignored;
+ gint ignored;
ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
if (ret == -1) { // EOF
_smf_last_read_end = start + duration;
while (true) {
- gint ignored; /* XXX don't ignore note id's ??*/
+ gint ignored; /* XXX don't ignore note id's ??*/
ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
if (ret == -1) { // EOF
* @param source Buffer to read from.
* @param position This source's start position in session frames.
*/
-nframes_t
-SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& source, framepos_t position, nframes_t duration)
+framecnt_t
+SMFSource::write_unlocked (MidiRingBuffer<framepos_t>& source, framepos_t position, framecnt_t duration)
{
+ if (!_writing) {
+ mark_streaming_write_started ();
+ }
+
_write_data_count = 0;
- nframes_t time;
+ framepos_t time;
Evoral::EventType type;
uint32_t size;
_model->start_write();
}
- Evoral::MIDIEvent<nframes_t> ev;
+ Evoral::MIDIEvent<framepos_t> ev;
while (true) {
- bool ret = source.peek_time(&time);
+ bool ret = source.peek ((uint8_t*)&time, sizeof (time));
if (!ret || time > _last_write_end + duration) {
break;
}
ev.set(buf, size, time);
ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
- ev.set_id (Evoral::next_event_id());
+ ev.set_id (Evoral::next_event_id());
if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
/*cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type "
Evoral::SMF::flush();
free(buf);
- ViewDataRangeReady (_last_write_end, duration); /* EMIT SIGNAL */
-
return duration;
}
if (ev.size() == 0) {
return;
}
-
- /* printf("SMFSource: %s - append_event_unlocked_beats ID = %d time = %lf, size = %u, data = ",
+
+ /*printf("SMFSource: %s - append_event_unlocked_beats ID = %d time = %lf, size = %u, data = ",
name().c_str(), ev.id(), ev.time(), ev.size());
- for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
+ for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
assert(ev.time() >= 0);
if (ev.time() < _last_ev_time_beats) {
return;
}
- Evoral::event_id_t event_id;
+ Evoral::event_id_t event_id;
- if (ev.id() < 0) {
- event_id = Evoral::next_event_id();
- } else {
- event_id = ev.id();
- }
+ if (ev.id() < 0) {
+ event_id = Evoral::next_event_id();
+ } else {
+ event_id = ev.id();
+ }
if (_model) {
_model->append (ev, event_id);
}
-/** Append an event with a timestamp in frames (nframes_t) */
+/** Append an event with a timestamp in frames (framepos_t) */
void
-SMFSource::append_event_unlocked_frames (const Evoral::Event<nframes_t>& ev, framepos_t position)
+SMFSource::append_event_unlocked_frames (const Evoral::Event<framepos_t>& ev, framepos_t position)
{
assert(_writing);
if (ev.size() == 0) {
cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
return;
}
-
+
BeatsFramesConverter converter(_session.tempo_map(), position);
- const double ev_time_beats = converter.from(ev.time());
- Evoral::event_id_t event_id;
+ const double ev_time_beats = converter.from(ev.time());
+ Evoral::event_id_t event_id;
- if (ev.id() < 0) {
- event_id = Evoral::next_event_id();
- } else {
- event_id = ev.id();
- }
+ if (ev.id() < 0) {
+ event_id = Evoral::next_event_id();
+ } else {
+ event_id = ev.id();
+ }
if (_model) {
- const Evoral::Event<double> beat_ev (ev.event_type(),
- ev_time_beats,
- ev.size(),
- (uint8_t*)ev.buffer());
+ const Evoral::Event<double> beat_ev (ev.event_type(),
+ ev_time_beats,
+ ev.size(),
+ (uint8_t*)ev.buffer());
_model->append (beat_ev, event_id);
- }
+ }
_length_beats = max(_length_beats, ev_time_beats);
const framepos_t delta_time_frames = ev.time() - _last_ev_time_frames;
- const double delta_time_beats = converter.from(delta_time_frames);
- const uint32_t delta_time_ticks = (uint32_t)(lrint(delta_time_beats * (double)ppqn()));
+ const double delta_time_beats = converter.from(delta_time_frames);
+ const uint32_t delta_time_ticks = (uint32_t)(lrint(delta_time_beats * (double)ppqn()));
Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer(), event_id);
_last_ev_time_frames = ev.time();
XMLNode&
SMFSource::get_state ()
{
- return MidiSource::get_state();
+ XMLNode& node = MidiSource::get_state();
+ node.add_property (X_("origin"), _origin);
+ return node;
}
int
}
void
-SMFSource::mark_streaming_midi_write_started (NoteMode mode, framepos_t start_frame)
+SMFSource::mark_streaming_midi_write_started (NoteMode mode)
{
- Glib::Mutex::Lock lm (_lock);
- MidiSource::mark_streaming_midi_write_started (mode, start_frame);
+ /* CALLER MUST HOLD LOCK */
+
+ if (!_open && open_for_write()) {
+ error << string_compose (_("cannot open MIDI file %1 for write"), _path) << endmsg;
+ /* XXX should probably throw or return something */
+ return;
+ }
+
+ MidiSource::mark_streaming_midi_write_started (mode);
Evoral::SMF::begin_write ();
_last_ev_time_beats = 0.0;
_last_ev_time_frames = 0;
if (_model) {
_model->set_edited(false);
}
-
+
Evoral::SMF::end_write ();
- /* data in the file now, not removable */
+ /* data in the file now, not removable */
- mark_nonremovable ();
+ mark_nonremovable ();
}
bool
return;
}
- if (! _model) {
- _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
+ if (!_model) {
+ _model = boost::shared_ptr<MidiModel> (new MidiModel (shared_from_this ()));
} else {
_model->clear();
}
+ if (writable() && !_open) {
+ return;
+ }
+
_model->start_write();
Evoral::SMF::seek_to_start();
uint32_t size = 0;
uint8_t* buf = NULL;
int ret;
- gint event_id;
- bool have_event_id = false;
+ gint event_id;
+ bool have_event_id = false;
while ((ret = read_event (&delta_t, &size, &buf, &event_id)) >= 0) {
time += delta_t;
-
- if (ret == 0) {
- /* meta-event : did we get an event ID ?
- */
+ if (ret == 0) {
- if (event_id >= 0) {
- have_event_id = true;
- }
+ /* meta-event : did we get an event ID ?
+ */
- continue;
- }
-
- if (ret > 0) {
+ if (event_id >= 0) {
+ have_event_id = true;
+ }
+
+ continue;
+ }
- /* not a meta-event */
+ if (ret > 0) {
- ev.set (buf, size, time / (double)ppqn());
+ /* not a meta-event */
+
+ ev.set (buf, size, time / (double)ppqn());
ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
- if (!have_event_id) {
- event_id = Evoral::next_event_id();
- }
+ if (!have_event_id) {
+ event_id = Evoral::next_event_id();
+ }
#ifndef NDEBUG
- std::string ss;
-
- for (uint32_t xx = 0; xx < size; ++xx) {
- char b[8];
- snprintf (b, sizeof (b), "0x%x ", buf[xx]);
- ss += b;
- }
-
- DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF %6 load model delta %1, time %2, size %3 buf %4, type %5\n",
- delta_t, time, size, ss , ev.event_type(), name()));
+ std::string ss;
+
+ for (uint32_t xx = 0; xx < size; ++xx) {
+ char b[8];
+ snprintf (b, sizeof (b), "0x%x ", buf[xx]);
+ ss += b;
+ }
+
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF %6 load model delta %1, time %2, size %3 buf %4, type %5\n",
+ delta_t, time, size, ss , ev.event_type(), name()));
#endif
-
+
_model->append (ev, event_id);
- if (ev.size() > scratch_size) {
- scratch_size = ev.size();
- }
-
- ev.size() = scratch_size; // ensure read_event only allocates if necessary
-
- _length_beats = max(_length_beats, ev.time());
- }
-
- /* event ID's must immediately precede the event they are for
- */
-
- have_event_id = false;
+ if (ev.size() > scratch_size) {
+ scratch_size = ev.size();
+ }
+
+ ev.size() = scratch_size; // ensure read_event only allocates if necessary
+
+ _length_beats = max(_length_beats, ev.time());
+ }
+
+ /* event ID's must immediately precede the event they are for
+ */
+
+ have_event_id = false;
}
_model->end_write(false);
void
SMFSource::flush_midi ()
{
- if (!writable()) {
- return;
- }
+ if (!writable() || (writable() && !_open)) {
+ return;
+ }
Evoral::SMF::end_write();
- /* data in the file means its no longer removable */
- mark_nonremovable ();
+ /* data in the file means its no longer removable */
+ mark_nonremovable ();
}
void
SMFSource::set_path (const string& p)
{
- FileSource::set_path (p);
- SMF::set_path (_path);
+ FileSource::set_path (p);
+ SMF::set_path (_path);
+}
+
+/** Ensure that this source has some file on disk, even if it's just a SMF header */
+void
+SMFSource::ensure_disk_file ()
+{
+ if (_model) {
+ /* We have a model, so write it to disk; see MidiSource::session_saved
+ for an explanation of what we are doing here.
+ */
+ boost::shared_ptr<MidiModel> mm = _model;
+ _model.reset ();
+ mm->sync_to_source ();
+ _model = mm;
+ } else {
+ /* No model; if it's not already open, it's an empty source, so create
+ and open it for writing.
+ */
+ if (!_open) {
+ open_for_write ();
+ }
+
+ /* Flush, which will definitely put something on disk */
+ flush_midi ();
+ }
}
+
projects / ardour.git / blobdiff