#include <glibmm/miscutils.h>
-#include <ardour/smf_source.h>
-#include <ardour/session.h>
+#include <evoral/SMFReader.hpp>
+#include <evoral/Control.hpp>
+
+#include <ardour/audioengine.h>
+#include <ardour/event_type_map.h>
+#include <ardour/midi_model.h>
#include <ardour/midi_ring_buffer.h>
-#include <ardour/midi_util.h>
+#include <ardour/session.h>
+#include <ardour/smf_source.h>
+#include <ardour/tempo.h>
#include "i18n.h"
string SMFSource::_search_path;
-/*sigc::signal<void,struct tm*, time_t> SMFSource::HeaderPositionOffsetChanged;
-bool SMFSource::header_position_negative;
-uint64_t SMFSource::header_position_offset;
-*/
-
-SMFSource::SMFSource (std::string path, Flag flags)
- : MidiSource (region_name_from_path(path))
- , _channel(0)
- , _flags (Flag(flags | Writable)) // FIXME: this needs to be writable for now
+/** Constructor used for new internal-to-session files. File cannot exist. */
+SMFSource::SMFSource(Session& s, std::string path, Flag flags)
+ : MidiSource(s, region_name_from_path(path, false))
+ , Evoral::SMF()
+ , _flags(flags)
, _allow_remove_if_empty(true)
- , _timeline_position (0)
- , _fd (0)
- , _last_ev_time(0)
- , _track_size(4) // 4 bytes for the ever-present EOT event
- , _header_size(22)
+ , _last_ev_time_beats(0.0)
+ , _last_ev_time_frames(0)
{
- /* constructor used for new internal-to-session files. file cannot exist */
-
- if (init (path, false)) {
+ if (init(path, false)) {
throw failed_constructor ();
}
- if (open()) {
+ if (create(path)) {
throw failed_constructor ();
}
-
- assert(_name.find("/") == string::npos);
- SourceCreated (this); /* EMIT SIGNAL */
+ assert(_name.find("/") == string::npos);
}
-SMFSource::SMFSource (const XMLNode& node)
- : MidiSource (node)
- , _channel(0)
- , _flags (Flag (Writable|CanRename))
+/** Constructor used for existing internal-to-session files. File must exist. */
+SMFSource::SMFSource(Session& s, const XMLNode& node)
+ : MidiSource(s, node)
+ , _flags(Flag(Writable|CanRename))
, _allow_remove_if_empty(true)
- , _timeline_position (0)
- , _fd (0)
- , _last_ev_time(0)
- , _track_size(4) // 4 bytes for the ever-present EOT event
- , _header_size(22)
+ , _last_ev_time_beats(0.0)
+ , _last_ev_time_frames(0)
{
- /* constructor used for existing internal-to-session files. file must exist */
-
- if (set_state (node)) {
+ if (set_state(node)) {
throw failed_constructor ();
}
- if (init (_name, true)) {
+ if (init(_name, true)) {
throw failed_constructor ();
}
- if (open()) {
+ if (open(_path)) {
throw failed_constructor ();
}
assert(_name.find("/") == string::npos);
-
- SourceCreated (this); /* EMIT SIGNAL */
}
SMFSource::~SMFSource ()
bool
SMFSource::removable () const
{
- return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
- ((_flags & RemovableIfEmpty) && is_empty (_path)));
+ return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
+ ((_flags & RemovableIfEmpty) && is_empty()));
}
int
return 0;
}
-int
-SMFSource::open()
+/** All stamps in audio frames */
+nframes_t
+SMFSource::read_unlocked (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t dur,
+ nframes_t stamp_offset, nframes_t negative_stamp_offset) const
{
- cerr << "Opening SMF file " << path() << " writeable: " << writable() << endl;
-
- assert(writable()); // FIXME;
-
- _fd = fopen(path().c_str(), "r+");
+ //cerr << "SMF read_unlocked " << name() << " read "
+ //<< start << ", count=" << dur << ", offset=" << stamp_offset << endl;
- // File already exists
- if (_fd) {
- fseek(_fd, _header_size - 4, 0);
- uint32_t track_size_be = 0;
- fread(&track_size_be, 4, 1, _fd);
- _track_size = GUINT32_FROM_BE(track_size_be);
- cerr << "SMF - read track size " << _track_size;
+ int ret;
+ uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
- // We're making a new file
- } else {
- _fd = fopen(path().c_str(), "w+");
- _track_size = 0;
-
- // write a tentative header just to pad things out so writing happens in the right spot
- flush_header();
- // FIXME: write the footer here too so it's a valid SMF (screw up writing ATM though)
- }
+ _read_data_count = 0;
- return (_fd == 0) ? -1 : 0;
-}
+ // Output parameters for read_event (which will allocate scratch in buffer as needed)
+ uint32_t ev_delta_t = 0;
+ uint32_t ev_type = 0;
+ uint32_t ev_size = 0;
+ uint8_t* ev_buffer = 0;
-int
-SMFSource::update_header (jack_nframes_t when, struct tm&, time_t)
-{
- _timeline_position = when;
- return flush_header();
-}
+ size_t scratch_size = 0; // keep track of scratch to minimize reallocs
-int
-SMFSource::flush_header ()
-{
- // FIXME: write timeline position somehow?
+ // FIXME: assumes tempo never changes after start
+ const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
+ const double frames_per_beat = tempo.frames_per_beat(
+ _session.engine().frame_rate(),
+ _session.tempo_map().meter_at(_timeline_position));
- cerr << "SMF Flushing header\n";
-
- assert(_fd);
-
- const uint16_t type = GUINT16_TO_BE(0); // SMF Type 0 (single track)
- const uint16_t ntracks = GUINT16_TO_BE(1); // Number of tracks (always 1 for Type 0)
- const uint16_t division = GUINT16_TO_BE(1920); // FIXME FIXME FIXME PPQN
-
- char data[6];
- memcpy(data, &type, 2);
- memcpy(data+2, &ntracks, 2);
- memcpy(data+4, &division, 2);
-
- _fd = freopen(path().c_str(), "r+", _fd);
- assert(_fd);
- fseek(_fd, 0, 0);
- write_chunk("MThd", 6, data);
- //if (_track_size > 0) {
- write_chunk_header("MTrk", _track_size);
- //}
-
- fflush(_fd);
-
- return 0;
-}
-
-int
-SMFSource::flush_footer()
-{
- cerr << "SMF - Writing EOT\n";
-
- fseek(_fd, 0, SEEK_END);
- write_var_len(1); // whatever...
- char eot[4] = { 0xFF, 0x2F, 0x00 }; // end-of-track meta-event
- fwrite(eot, 1, 4, _fd);
- fflush(_fd);
- return 0;
-}
-
-/** Returns the offset of the first event in the file with a time past @a start,
- * relative to the start of the source.
- *
- * Returns -1 if not found.
- */
-/*
-long
-SMFSource::find_first_event_after(jack_nframes_t start)
-{
- // FIXME: obviously this is slooow
+ const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * ppqn());
+
+ if (_last_read_end == 0 || start != _last_read_end) {
+ cerr << "SMFSource::read_unlocked seeking to " << start << endl;
+ Evoral::SMF::seek_to_start();
+ while (time < start_ticks) {
+ ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
+ if (ret == -1) { // EOF
+ _last_read_end = start + dur;
+ return dur;
+ }
+ time += ev_delta_t; // accumulate delta time
+ }
+ }
- fseek(_fd, _header_size, 0);
-
- while ( ! feof(_fd) ) {
- const uint32_t delta_time = read_var_len();
+ _last_read_end = start + dur;
- if (delta_time > start)
- return delta_time;
- }
+ while (true) {
+ ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
+ if (ret == -1) { // EOF
+ break;
+ }
+
+ ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
+
+ time += ev_delta_t; // accumulate delta time
- return -1;
-}
-*/
+ if (ret == 0) { // meta-event (skipped, just accumulate time)
+ continue;
+ }
-/** Read an event from the current position in file.
- *
- * File position MUST be at the beginning of a delta time, or this will die very messily.
- * ev.buffer must be of size ev.size, and large enough for the event. The returned event
- * will have it's time field set to it's delta time (so it's the caller's responsibility
- * to calculate a real time for the event).
- *
- * Returns event length (including status byte) on success, 0 if event was
- * skipped (eg a meta event), or -1 on EOF (or end of track).
- */
-int
-SMFSource::read_event(MidiEvent& ev) const
-{
- // - 4 is for the EOT event, which we don't actually want to read
- //if (feof(_fd) || ftell(_fd) >= _header_size + _track_size - 4) {
- if (feof(_fd)) {
- return -1;
- }
+ assert(time >= start_ticks);
+ const nframes_t ev_frame_time = (nframes_t)(
+ ((time / (double)ppqn()) * frames_per_beat)) + stamp_offset;
- uint32_t delta_time = read_var_len();
- int status = fgetc(_fd);
- assert(status != EOF); // FIXME die gracefully
- if (status == 0xFF) {
- assert(!feof(_fd));
- int type = fgetc(_fd);
- if ((unsigned char)type == 0x2F) {
- cerr << "SMF - hit EOT" << endl;
- return -1; // we hit the logical EOF anyway...
+ if (ev_frame_time < start + dur) {
+ dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
} else {
- ev.size = 0;
- ev.time = delta_time; // this is needed regardless
- return 0;
+ break;
}
- }
- ev.buffer[0] = (unsigned char)status;
- ev.size = midi_event_size(ev.buffer[0]) + 1;
- fread(ev.buffer+1, 1, ev.size - 1, _fd);
- ev.time = delta_time;
+ _read_data_count += ev_size;
- printf("SMF - read event, delta = %u, size = %zu, data = ",
- delta_time, ev.size);
- for (size_t i=0; i < ev.size; ++i) {
- printf("%X ", ev.buffer[i]);
+ if (ev_size > scratch_size) {
+ scratch_size = ev_size;
+ }
+ ev_size = scratch_size; // ensure read_event only allocates if necessary
}
- printf("\n");
- return ev.size;
+ return dur;
}
-jack_nframes_t
-SMFSource::read_unlocked (MidiRingBuffer& dst, jack_nframes_t start, jack_nframes_t cnt, jack_nframes_t stamp_offset) const
+/** All stamps in audio frames */
+nframes_t
+SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& src, nframes_t dur)
{
- cerr << "SMF - read " << start << " -- " << cnt;
+ _write_data_count = 0;
+
+ nframes_t time;
+ Evoral::EventType type;
+ uint32_t size;
- jack_nframes_t time = 0;
+ size_t buf_capacity = 4;
+ uint8_t* buf = (uint8_t*)malloc(buf_capacity);
+
+ if (_model && ! _model->writing()) {
+ _model->start_write();
+ }
- // FIXME: ugh
- unsigned char ev_buf[MidiBuffer::max_event_size()];
- MidiEvent ev;
- ev.time = 0;
- ev.size = MidiBuffer::max_event_size();
- ev.buffer = ev_buf;
+ Evoral::MIDIEvent<nframes_t> ev(0, 0.0, 4, NULL, true);
- // FIXME: it would be an impressive feat to actually make this any slower :)
-
- fseek(_fd, _header_size, 0);
-
- while (!feof(_fd)) {
- int ret = read_event(ev);
- if (ret == -1) { // EOF
- cerr << "SMF - EOF\n";
+ while (true) {
+ bool ret = src.peek_time(&time);
+ if (!ret || time - _timeline_position > _length + dur) {
break;
}
- if (ret == 0) { // meta-event (skipped)
- cerr << "SMF - META\n";
- time += ev.time; // just accumulate delta time and ignore event
- continue;
+ ret = src.read_prefix(&time, &type, &size);
+ if (!ret) {
+ break;
}
- time += ev.time; // accumulate delta time
- ev.time = time; // set ev.time to actual time (relative to source start)
+ if (size > buf_capacity) {
+ buf_capacity = size;
+ buf = (uint8_t*)realloc(buf, size);
+ }
- if (ev.time >= start) {
- if (ev.time > start + cnt) {
- break;
- } else {
- ev.time += stamp_offset;
- dst.write(ev);
- }
+ ret = src.read_contents(size, buf);
+ if (!ret) {
+ cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
+ break;
+ }
+
+ assert(time >= _timeline_position);
+ time -= _timeline_position;
+
+ ev.set(buf, size, time);
+ ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
+ 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 "
+ << std::hex << int(ev.buffer()[0]) << endl;
+ continue;
}
+
+ append_event_unlocked_frames(ev);
}
-#if 0
- cerr << "SMF pretending to read" << endl;
- MidiEvent ev;
- RawMidi data[4];
-
- const char note = rand()%30 + 30;
-
- ev.buffer = data;
- ev.time = start+1; // FIXME: bug at 0?
- ev.size = 3;
+ if (_model) {
+ set_default_controls_interpolation();
+ }
- data[0] = 0x90;
- data[1] = note;
- data[2] = 120;
+ Evoral::SMF::flush();
+ free(buf);
- dst.write(ev);
-
- ev.buffer = data;
- ev.time = start + (jack_nframes_t)(cnt * 8.0/10.0);
- ev.size = 3;
+ const nframes_t oldlen = _length;
+ update_length(oldlen, dur);
- data[0] = 0x80;
- data[1] = note;
- data[2] = 64;
-
- dst.write(ev);
+ ViewDataRangeReady(_timeline_position + oldlen, dur); /* EMIT SIGNAL */
- //dst.clear();
-#endif
- return cnt;
+ return dur;
}
+
-jack_nframes_t
-SMFSource::write_unlocked (MidiRingBuffer& src, jack_nframes_t cnt)
+/** Append an event with a timestamp in beats (double) */
+void
+SMFSource::append_event_unlocked_beats(const Evoral::Event<double>& ev)
{
- cerr << "SMF WRITE -- " << _length << "--" << cnt << endl;
+ if (ev.size() == 0) {
+ return;
+ }
+
+ /*printf("SMFSource: %s - append_event_unlocked_beats time = %lf, size = %u, data = ",
+ name().c_str(), ev.time(), ev.size());
+ 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) {
+ cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
+ return;
+ }
- MidiBuffer buf(1024); // FIXME: allocation, size?
- src.read(buf, /*_length*/0, _length + cnt); // FIXME?
+ const double delta_time_beats = ev.time() - _last_ev_time_beats;
+ const uint32_t delta_time_ticks = (uint32_t)lrint(delta_time_beats * (double)ppqn());
- fseek(_fd, 0, SEEK_END);
+ Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer());
+ _last_ev_time_beats = ev.time();
- // FIXME: start of source time?
-
- for (size_t i=0; i < buf.size(); ++i) {
- const MidiEvent& ev = buf[i];
- assert(ev.time >= _timeline_position);
- uint32_t delta_time = (ev.time - _timeline_position) - _last_ev_time;
-
- printf("SMF - writing event, delta = %u, size = %zu, data = ",
- delta_time, ev.size);
- for (size_t i=0; i < ev.size; ++i) {
- printf("%X ", ev.buffer[i]);
- }
- printf("\n");
-
- size_t stamp_size = write_var_len(delta_time);
- fwrite(ev.buffer, 1, ev.size, _fd);
- _last_ev_time += delta_time;
- _track_size += stamp_size + ev.size;
+ _write_data_count += ev.size();
+
+ if (_model) {
+ _model->append(ev);
}
+}
- fflush(_fd);
+/** Append an event with a timestamp in frames (nframes_t) */
+void
+SMFSource::append_event_unlocked_frames(const Evoral::Event<nframes_t>& ev)
+{
+ if (ev.size() == 0) {
+ return;
+ }
- if (buf.size() > 0) {
- ViewDataRangeReady (_length, cnt); /* EMIT SIGNAL */
+ /*printf("SMFSource: %s - append_event_unlocked_frames time = %u, size = %u, data = ",
+ name().c_str(), ev.time(), ev.size());
+ 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_frames) {
+ cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
+ return;
}
+
+ // FIXME: assumes tempo never changes after start
+ const Tempo& tempo = _session.tempo_map().tempo_at(_timeline_position);
+ const double frames_per_beat = tempo.frames_per_beat(
+ _session.engine().frame_rate(),
+ _session.tempo_map().meter_at(_timeline_position));
+
+ uint32_t delta_time = (uint32_t)((ev.time() - _last_ev_time_frames)
+ / frames_per_beat * (double)ppqn());
- update_length(_length, cnt);
- return cnt;
+ Evoral::SMF::append_event_delta(delta_time, ev.size(), ev.buffer());
+ _last_ev_time_frames = ev.time();
+
+ _write_data_count += ev.size();
+
+ if (_model) {
+ double beat_time = ev.time() / frames_per_beat;
+ const Evoral::Event<double> beat_ev(
+ ev.event_type(), beat_time, ev.size(), (uint8_t*)ev.buffer());
+ _model->append(beat_ev);
+ }
}
+
XMLNode&
SMFSource::get_state ()
{
}
if ((prop = node.property (X_("flags"))) != 0) {
-
int ival;
sscanf (prop->value().c_str(), "0x%x", &ival);
_flags = Flag (ival);
-
} else {
-
_flags = Flag (0);
-
}
assert(_name.find("/") == string::npos);
_flags = Flag (_flags | RemoveAtDestroy);
}
+void
+SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
+{
+ MidiSource::mark_streaming_midi_write_started (mode, start_frame);
+ Evoral::SMF::begin_write ();
+ _last_ev_time_beats = 0.0;
+ _last_ev_time_frames = 0;
+}
+
void
SMFSource::mark_streaming_write_completed ()
{
+ MidiSource::mark_streaming_write_completed();
+
if (!writable()) {
return;
}
- flush_footer();
-
-#if 0
- Glib::Mutex::Lock lm (_lock);
-
-
- next_peak_clear_should_notify = true;
-
- if (_peaks_built || pending_peak_builds.empty()) {
- _peaks_built = true;
- PeaksReady (); /* EMIT SIGNAL */
- }
-#endif
+ _model->set_edited(false);
+ Evoral::SMF::end_write ();
}
void
int
SMFSource::move_to_trash (const string trash_dir_name)
{
- string newpath;
-
if (!writable()) {
return -1;
}
- /* don't move the file across filesystems, just
- stick it in the `trash_dir_name' directory
- on whichever filesystem it was already on.
+ /* don't move the file across filesystems, just stick it in the
+ trash_dir_name directory on whichever filesystem it was already on
*/
-
+
+ Glib::ustring newpath;
newpath = Glib::path_get_dirname (_path);
- newpath = Glib::path_get_dirname (newpath);
+ newpath = Glib::path_get_dirname (newpath);
- newpath += '/';
- newpath += trash_dir_name;
- newpath += '/';
+ newpath += string("/") + trash_dir_name + "/";
newpath += Glib::path_get_basename (_path);
+ /* the new path already exists, try versioning */
if (access (newpath.c_str(), F_OK) == 0) {
-
- /* the new path already exists, try versioning */
-
char buf[PATH_MAX+1];
int version = 1;
string newpath_v;
}
if (version == 999) {
- PBD::error << string_compose (_("there are already 1000 files with names like %1; versioning discontinued"),
- newpath)
- << endmsg;
+ PBD::error << string_compose (
+ _("there are already 1000 files with names like %1; versioning discontinued"),
+ newpath) << endmsg;
} else {
newpath = newpath_v;
}
-
- } else {
-
- /* it doesn't exist, or we can't read it or something */
-
}
if (::rename (_path.c_str(), newpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot rename audio file source from %1 to %2 (%3)"),
- _path, newpath, strerror (errno))
- << endmsg;
+ PBD::error << string_compose (
+ _("cannot rename midi file source from %1 to %2 (%3)"),
+ _path, newpath, strerror (errno)) << endmsg;
return -1;
}
-#if 0
- if (::unlink (peakpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot remove peakfile %1 for %2 (%3)"),
- peakpath, _path, strerror (errno))
- << endmsg;
- /* try to back out */
- rename (newpath.c_str(), _path.c_str());
- return -1;
- }
-
+
_path = newpath;
- peakpath = "";
-#endif
+
/* file can not be removed twice, since the operation is not idempotent */
-
_flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
return 0;
}
+bool
+SMFSource::safe_file_extension(const Glib::ustring& file)
+{
+ return (file.rfind(".mid") != Glib::ustring::npos);
+}
+
// FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
bool
SMFSource::find (string pathstr, bool must_exist, bool& isnew)
{
- string::size_type pos;
bool ret = false;
isnew = false;
- /* clean up PATH:CHANNEL notation so that we are looking for the correct path */
-
- if ((pos = pathstr.find_last_of (':')) == string::npos) {
- pathstr = pathstr;
- } else {
- pathstr = pathstr.substr (0, pos);
- }
-
if (pathstr[0] != '/') {
/* non-absolute pathname: find pathstr in search path */
cnt = 0;
for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
-
fullpath = *i;
if (fullpath[fullpath.length()-1] != '/') {
fullpath += '/';
}
int
-SMFSource::set_name (string newname, bool destructive)
+SMFSource::set_source_name (string newname, bool destructive)
{
//Glib::Mutex::Lock lm (_lock); FIXME
string oldpath = _path;
- string newpath = Session::change_audio_path_by_name (oldpath, _name, newname, destructive);
+ string newpath = Session::change_midi_path_by_name (oldpath, _name, newname, destructive);
if (newpath.empty()) {
- PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed audio path") << endmsg;
+ PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
return -1;
}
if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot rename audio file for %1 to %2"), _name, newpath) << endmsg;
+ PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg;
return -1;
}
_name = Glib::path_get_basename (newpath);
_path = newpath;
- return 0;//rename_peakfile (peak_path (_path));
-}
-
-bool
-SMFSource::is_empty (string path)
-{
- /* XXX fix me */
-
- return false;
+ return 0;
}
-
void
-SMFSource::write_chunk_header(char id[4], uint32_t length)
+SMFSource::load_model(bool lock, bool force_reload)
{
- const uint32_t length_be = GUINT32_TO_BE(length);
+ if (_writing) {
+ return;
+ }
+
+ if (lock) {
+ Glib::Mutex::Lock lm (_lock);
+ }
- fwrite(id, 1, 4, _fd);
- fwrite(&length_be, 4, 1, _fd);
-}
+ if (_model && !force_reload) {
+ return;
+ }
-void
-SMFSource::write_chunk(char id[4], uint32_t length, void* data)
-{
- write_chunk_header(id, length);
-
- fwrite(data, 1, length, _fd);
-}
+ if (! _model) {
+ _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
+ cerr << _name << " loaded new model " << _model.get() << endl;
+ } else {
+ cerr << _name << " reloading model " << _model.get()
+ << " (" << _model->n_notes() << " notes)" <<endl;
+ _model->clear();
+ }
-/** Returns the size (in bytes) of the value written. */
-size_t
-SMFSource::write_var_len(uint32_t value)
-{
- size_t ret = 0;
+ _model->start_write();
+ Evoral::SMF::seek_to_start();
- uint32_t buffer = value & 0x7F;
+ uint64_t time = 0; /* in SMF ticks */
+ Evoral::Event<double> ev;
+
+ size_t scratch_size = 0; // keep track of scratch and minimize reallocs
+
+ uint32_t delta_t = 0;
+ uint32_t size = 0;
+ uint8_t* buf = NULL;
+ int ret;
+ while ((ret = read_event(&delta_t, &size, &buf)) >= 0) {
+ time += delta_t;
+ ev.set(buf, size, time / (double)ppqn());
+
+ if (ret > 0) { // didn't skip (meta) event
+ ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
+ _model->append(ev);
+ }
- while ( (value >>= 7) ) {
- buffer <<= 8;
- buffer |= ((value & 0x7F) | 0x80);
+ if (ev.size() > scratch_size) {
+ scratch_size = ev.size();
+ }
+ ev.size() = scratch_size; // ensure read_event only allocates if necessary
}
- while (true) {
- //printf("Writing var len byte %X\n", (unsigned char)buffer);
- ++ret;
- fputc(buffer, _fd);
- if (buffer & 0x80)
- buffer >>= 8;
- else
- break;
- }
+ set_default_controls_interpolation();
+
+ _model->end_write(false);
+ _model->set_edited(false);
- return ret;
+ free(buf);
}
-uint32_t
-SMFSource::read_var_len() const
-{
- assert(!feof(_fd));
+#define LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY 0
- //int offset = ftell(_fd);
- //cerr << "SMF - reading var len at " << offset << endl;
+void
+SMFSource::set_default_controls_interpolation()
+{
+ // set interpolation style to defaults, can be changed by the GUI later
+ Evoral::ControlSet::Controls controls = _model->controls();
+ for (Evoral::ControlSet::Controls::iterator c = controls.begin(); c != controls.end(); ++c) {
+ (*c).second->list()->set_interpolation(
+ // to be enabled when ControlList::rt_safe_earliest_event_linear_unlocked works properly
+ #if LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY
+ EventTypeMap::instance().interpolation_of((*c).first));
+ #else
+ Evoral::ControlList::Discrete);
+ #endif
+ }
+}
- uint32_t value;
- unsigned char c;
- if ( (value = getc(_fd)) & 0x80 ) {
- value &= 0x7F;
- do {
- assert(!feof(_fd));
- value = (value << 7) + ((c = getc(_fd)) & 0x7F);
- } while (c & 0x80);
- }
+void
+SMFSource::destroy_model()
+{
+ //cerr << _name << " destroying model " << _model.get() << endl;
+ _model.reset();
+}
- return value;
+void
+SMFSource::flush_midi()
+{
+ Evoral::SMF::end_write();
}
+