#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 <ardour/audioengine.h>
-#include <ardour/smf_reader.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 (Session& s, std::string path, Flag flags)
- : MidiSource (s, region_name_from_path(path, false))
- , _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)
- , _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 ();
}
- cerr << "SMF Source path: " << path << endl;
-
assert(_name.find("/") == string::npos);
}
-SMFSource::SMFSource (Session& s, const XMLNode& node)
- : MidiSource (s, node)
- , _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)
- , _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 ();
}
bool
SMFSource::removable () const
{
- return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
- ((_flags & RemovableIfEmpty) && is_empty()));
+ return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
+ ((_flags & RemovableIfEmpty) && is_empty()));
}
int
return 0;
}
-/** Attempt to open the SMF file for reading and writing.
- *
- * Currently SMFSource is always read/write.
- *
- * \return 0 on success
- * -1 if the file can not be opened for reading,
- * -2 if the file can not be opened for writing
- */
-int
-SMFSource::open()
-{
- //cerr << "Opening SMF file " << path() << " writeable: " << writable() << endl;
-
- assert(writable()); // FIXME;
-
- _fd = fopen(path().c_str(), "r+");
-
- // 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 << endl;
-
- // We're making a new file
- } else {
- _fd = fopen(path().c_str(), "w+");
- if (_fd == NULL) {
- cerr << "ERROR: Can not open SMF file " << path() << " for writing: " <<
- strerror(errno) << endl;
- return -2;
- }
- _track_size = 4;
-
- // Write a tentative header just to pad things out so writing happens in the right spot
- flush_header();
- flush_footer();
- }
-
- return (_fd == 0) ? -1 : 0;
-}
-
-void
-SMFSource::close()
-{
- if (_fd) {
- flush_header();
- flush_footer();
- fclose(_fd);
- _fd = NULL;
- }
-}
-
-void
-SMFSource::seek_to_footer_position()
-{
- uint8_t buffer[4];
-
- // lets check if there is a track end marker at the end of the data
- fseek(_fd, -4, SEEK_END);
- size_t read_bytes = fread(buffer, sizeof(uint8_t), 4, _fd);
- //cerr << "SMFSource::seek_to_footer_position: read size: " << read_bytes << endl;
- if( (read_bytes == 4) &&
- buffer[0] == 0x00 &&
- buffer[1] == 0xFF &&
- buffer[2] == 0x2F &&
- buffer[3] == 0x00) {
- // there is one, so overwrite it
- fseek(_fd, -4, SEEK_END);
- } else {
- // there is none, so append
- fseek(_fd, 0, SEEK_END);
- }
-}
-
-int
-SMFSource::flush_header()
-{
- // FIXME: write timeline position somehow?
-
- //cerr << path() << " 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(_ppqn); // Pulses per quarter note (beat)
-
- 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, SEEK_SET);
- write_chunk("MThd", 6, data);
- write_chunk_header("MTrk", _track_size);
-
- fflush(_fd);
-
- return 0;
-}
-
-int
-SMFSource::flush_footer()
-{
- //cerr << path() << " SMF Flushing footer\n";
- seek_to_footer_position();
- write_footer();
-
- return 0;
-}
-
-void
-SMFSource::write_footer()
-{
- write_var_len(0);
- char eot[3] = { 0xFF, 0x2F, 0x00 }; // end-of-track meta-event
- fwrite(eot, 1, 3, _fd);
- fflush(_fd);
-}
-
-/** 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(nframes_t start)
-{
- // FIXME: obviously this is slooow
-
- fseek(_fd, _header_size, 0);
-
- while ( ! feof(_fd) ) {
- const uint32_t delta_time = read_var_len();
-
- if (delta_time > start)
- return delta_time;
- }
-
- return -1;
-}
-*/
-
-/** 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, in SMF tempo-based ticks, using the
- * rate given by ppqn() (it is the caller's responsibility to calculate a real time).
- *
- * \a size should be the capacity of \a buf. If it is not large enough, \a buf will
- * be freed and a new buffer allocated in its place, the size of which will be placed
- * in size.
- *
- * 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(uint32_t* delta_t, uint32_t* size, Byte** buf) const
-{
- if (feof(_fd)) {
- return -1;
- }
-
- assert(delta_t);
- assert(size);
- assert(buf);
-
- try {
- *delta_t = SMFReader::read_var_len(_fd);
- } catch (...) {
- return -1; // Premature EOF
- }
-
- if (feof(_fd)) {
- return -1; // Premature EOF
- }
-
- const int status = fgetc(_fd);
-
- if (status == EOF) {
- return -1; // Premature EOF
- }
-
- //printf("Status @ %X = %X\n", (unsigned)ftell(_fd) - 1, status);
-
- if (status == 0xFF) {
- if (feof(_fd)) {
- return -1; // Premature EOF
- }
- const int type = fgetc(_fd);
- if ((unsigned char)type == 0x2F) {
- return -1; // hit end of track
- } else {
- *size = 0;
- return 0;
- }
- }
-
- const int event_size = midi_event_size((unsigned char)status) + 1;
- if (event_size <= 0) {
- *size = 0;
- return 0;
- }
-
- // Make sure we have enough scratch buffer
- if (*size < (unsigned)event_size)
- *buf = (Byte*)realloc(*buf, event_size);
-
- *size = event_size;
-
- (*buf)[0] = (unsigned char)status;
- if (event_size > 1)
- fread((*buf) + 1, 1, *size - 1, _fd);
-
- printf("SMFSource %s read event: delta = %u, size = %u, data = ", _name.c_str(), *delta_t, *size);
- for (size_t i=0; i < *size; ++i) {
- printf("%X ", (*buf)[i]);
- }
- printf("\n");
-
- return (int)*size;
-}
-
/** All stamps in audio frames */
nframes_t
-SMFSource::read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset, nframes_t negative_stamp_offset) const
+SMFSource::read_unlocked (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t dur,
+ nframes_t stamp_offset, nframes_t negative_stamp_offset) const
{
- cerr << "SMF read_unlocked " << name() << " read " << start << ", count=" << cnt << ", offset=" << stamp_offset << endl;
+ //cerr << "SMF read_unlocked " << name() << " read "
+ //<< start << ", count=" << dur << ", offset=" << stamp_offset << endl;
- // 64 bits ought to be enough for anybody
+ int ret;
uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
_read_data_count = 0;
// Output parameters for read_event (which will allocate scratch in buffer as needed)
uint32_t ev_delta_t = 0;
- uint32_t ev_size = 0;
- Byte* ev_buffer = 0;
+ uint32_t ev_type = 0;
+ uint32_t ev_size = 0;
+ uint8_t* ev_buffer = 0;
size_t scratch_size = 0; // keep track of scratch to minimize reallocs
- // FIXME: don't seek to start and search every read (brutal!)
- fseek(_fd, _header_size, SEEK_SET);
-
// FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
+ 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));
- const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * _ppqn);
+ 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
+ }
+ }
+
+ _last_read_end = start + dur;
- while (!feof(_fd)) {
- int ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
+ while (true) {
+ ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
if (ret == -1) { // EOF
- //cerr << "SMF - EOF\n";
break;
}
+
+ ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
+
+ time += ev_delta_t; // accumulate delta time
- if (ret == 0) { // meta-event (skipped)
- //cerr << "SMF - META\n";
- time += ev_delta_t; // just accumulate delta time and ignore event
+ if (ret == 0) { // meta-event (skipped, just accumulate time)
continue;
}
- time += ev_delta_t; // accumulate delta time
-
- if (time >= start_ticks) {
- const nframes_t ev_frame_time = (nframes_t)(
- ((time / (double)_ppqn) * frames_per_beat)) + stamp_offset;
+ assert(time >= start_ticks);
+ const nframes_t ev_frame_time = (nframes_t)(
+ ((time / (double)ppqn()) * frames_per_beat)) + stamp_offset;
- if (ev_frame_time <= start + cnt)
- dst.write(ev_frame_time - negative_stamp_offset, ev_size, ev_buffer);
- else
- break;
+ if (ev_frame_time < start + dur) {
+ dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
+ } else {
+ break;
}
_read_data_count += ev_size;
- if (ev_size > scratch_size)
+ if (ev_size > scratch_size) {
scratch_size = ev_size;
- else
- ev_size = scratch_size; // minimize realloc in read_event
+ }
+ ev_size = scratch_size; // ensure read_event only allocates if necessary
}
- return cnt;
+ return dur;
}
/** All stamps in audio frames */
nframes_t
-SMFSource::write_unlocked (MidiRingBuffer& src, nframes_t cnt)
+SMFSource::write_unlocked (MidiRingBuffer<nframes_t>& src, nframes_t dur)
{
_write_data_count = 0;
- double time;
- size_t size;
+ nframes_t time;
+ Evoral::EventType type;
+ uint32_t size;
- size_t buf_capacity = 4;
- Byte* buf = (Byte*)malloc(buf_capacity);
+ size_t buf_capacity = 4;
+ uint8_t* buf = (uint8_t*)malloc(buf_capacity);
- if (_model && ! _model->writing())
+ if (_model && ! _model->writing()) {
_model->start_write();
+ }
+
+ Evoral::MIDIEvent<nframes_t> ev(0, 0.0, 4, NULL, true);
while (true) {
- bool ret = src.full_peek(sizeof(double), (Byte*)&time);
- if (!ret || time - _timeline_position > _length + cnt)
+ bool ret = src.peek_time(&time);
+ if (!ret || time - _timeline_position > _length + dur) {
break;
+ }
- ret = src.read_prefix(&time, &size);
- if (!ret)
+ ret = src.read_prefix(&time, &type, &size);
+ if (!ret) {
break;
+ }
if (size > buf_capacity) {
buf_capacity = size;
- buf = (Byte*)realloc(buf, size);
+ buf = (uint8_t*)realloc(buf, size);
}
ret = src.read_contents(size, buf);
assert(time >= _timeline_position);
time -= _timeline_position;
- const MIDI::Event ev(time, size, buf);
- 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;
+ 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);
+ append_event_unlocked_frames(ev);
+ }
- if (_model)
- _model->append(ev);
+ if (_model) {
+ set_default_controls_interpolation();
}
- fflush(_fd);
+ Evoral::SMF::flush();
free(buf);
const nframes_t oldlen = _length;
- update_length(oldlen, cnt);
+ update_length(oldlen, dur);
- ViewDataRangeReady (_timeline_position + oldlen, cnt); /* EMIT SIGNAL */
-
- return cnt;
+ ViewDataRangeReady(_timeline_position + oldlen, dur); /* EMIT SIGNAL */
+
+ return dur;
}
+/** Append an event with a timestamp in beats (double) */
void
-SMFSource::append_event_unlocked(EventTimeUnit unit, const MIDI::Event& ev)
+SMFSource::append_event_unlocked_beats(const Evoral::Event<double>& ev)
{
- /*printf("SMFSource: %s - append_event_unlocked chan = %u, time = %lf, size = %u, data = ",
- name().c_str(), (unsigned)ev.channel(), ev.time(), ev.size()); */
- for (size_t i=0; i < ev.size(); ++i) {
- printf("%X ", ev.buffer()[i]);
+ if (ev.size() == 0) {
+ return;
}
- printf("\n");
+
+ /*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);
- assert(ev.time() >= _last_ev_time);
-
- uint32_t delta_time = 0;
+ if (ev.time() < _last_ev_time_beats) {
+ cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
+ return;
+ }
- if (unit == Frames) {
- // FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
- _session.engine().frame_rate(),
- _session.tempo_map().meter_at(_timeline_position));
+ 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());
- delta_time = (uint32_t)((ev.time() - _last_ev_time) / frames_per_beat * _ppqn);
- } else {
- assert(unit == Beats);
- delta_time = (uint32_t)((ev.time() - _last_ev_time) * _ppqn);
+ Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer());
+ _last_ev_time_beats = ev.time();
+
+ _write_data_count += ev.size();
+
+ if (_model) {
+ _model->append(ev);
+ }
+}
+
+/** 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;
}
+ /*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");*/
- const size_t stamp_size = write_var_len(delta_time);
- fwrite(ev.buffer(), 1, ev.size(), _fd);
+ 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());
+
+ Evoral::SMF::append_event_delta(delta_time, ev.size(), ev.buffer());
+ _last_ev_time_frames = ev.time();
- _track_size += stamp_size + ev.size();
_write_data_count += ev.size();
- _last_ev_time = ev.time();
+ 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);
+ }
}
}
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);
SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
{
MidiSource::mark_streaming_midi_write_started (mode, start_frame);
- _last_ev_time = 0;
- fseek(_fd, _header_size, SEEK_SET);
+ Evoral::SMF::begin_write ();
+ _last_ev_time_beats = 0.0;
+ _last_ev_time_frames = 0;
}
void
}
_model->set_edited(false);
- flush_header();
- flush_footer();
+ 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 midi 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::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 += '/';
_name = Glib::path_get_basename (newpath);
_path = newpath;
- return 0;//rename_peakfile (peak_path (_path));
-}
-
-bool
-SMFSource::is_empty () const
-{
- bool ret = (_track_size > 4);
-
- //cerr << name() << " IS EMPTY: " << ret << endl;
-
- return ret;
-}
-
-
-void
-SMFSource::write_chunk_header(const char id[4], uint32_t length)
-{
- const uint32_t length_be = GUINT32_TO_BE(length);
-
- fwrite(id, 1, 4, _fd);
- fwrite(&length_be, 4, 1, _fd);
-}
-
-void
-SMFSource::write_chunk(const char id[4], uint32_t length, void* data)
-{
- write_chunk_header(id, length);
-
- fwrite(data, 1, length, _fd);
-}
-
-/** Returns the size (in bytes) of the value written. */
-size_t
-SMFSource::write_var_len(uint32_t value)
-{
- size_t ret = 0;
-
- uint32_t buffer = value & 0x7F;
-
- while ( (value >>= 7) ) {
- buffer <<= 8;
- buffer |= ((value & 0x7F) | 0x80);
- }
-
- while (true) {
- //printf("Writing var len byte %X\n", (unsigned char)buffer);
- ++ret;
- fputc(buffer, _fd);
- if (buffer & 0x80)
- buffer >>= 8;
- else
- break;
- }
-
- return ret;
+ return 0;
}
void
SMFSource::load_model(bool lock, bool force_reload)
{
- if (_writing)
+ if (_writing) {
return;
-
- if (lock)
+ }
+
+ if (lock) {
Glib::Mutex::Lock lm (_lock);
+ }
- if (_model && !force_reload && !_model->empty())
+ if (_model && !force_reload) {
return;
+ }
if (! _model) {
_model = boost::shared_ptr<MidiModel>(new MidiModel(this));
}
_model->start_write();
-
- fseek(_fd, _header_size, SEEK_SET);
+ Evoral::SMF::seek_to_start();
uint64_t time = 0; /* in SMF ticks */
- MIDI::Event ev;
+ Evoral::Event<double> ev;
size_t scratch_size = 0; // keep track of scratch and minimize reallocs
- // FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
- _session.engine().frame_rate(),
- _session.tempo_map().meter_at(_timeline_position));
-
uint32_t delta_t = 0;
+ uint32_t size = 0;
+ uint8_t* buf = NULL;
int ret;
- while ((ret = read_event(&delta_t, &ev.size(), &ev.buffer())) >= 0) {
-
+ 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
- // make ev.time absolute time in frames
- ev.time() = (double)time * frames_per_beat / (double)_ppqn;
-
+ ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
_model->append(ev);
}
- if (ev.size() > scratch_size)
+ if (ev.size() > scratch_size) {
scratch_size = ev.size();
- else
- ev.size() = scratch_size;
+ }
+ ev.size() = scratch_size; // ensure read_event only allocates if necessary
}
+
+ set_default_controls_interpolation();
_model->end_write(false);
_model->set_edited(false);
- free(ev.buffer());
+ free(buf);
+}
+
+#define LINEAR_INTERPOLATION_MODE_WORKS_PROPERLY 0
+
+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
+ }
}
_model.reset();
}
+void
+SMFSource::flush_midi()
+{
+ Evoral::SMF::end_write();
+}
+
projects / ardour.git / blobdiff