X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsmf_source.cc;h=f48fc301f71cd7d77de994c964814a8b91e29d06;hb=e374518ca9c4643874eee3877e270eef32d95f18;hp=720626e93642e5863d840f0d8e34161274007073;hpb=eb4a1fdbb8fec1f8aa5dfe33f882064e85792a84;p=ardour.git diff --git a/libs/ardour/smf_source.cc b/libs/ardour/smf_source.cc index 720626e936..f48fc301f7 100644 --- a/libs/ardour/smf_source.cc +++ b/libs/ardour/smf_source.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2006 Paul Davis + Copyright (C) 2006 Paul Davis Written by Dave Robillard, 2006 This program is free software; you can redistribute it and/or modify @@ -25,82 +25,72 @@ #include #include -#include -#include -#include -#include +#include "pbd/mountpoint.h" +#include "pbd/pathscanner.h" +#include "pbd/stl_delete.h" +#include "pbd/strsplit.h" #include -#include -#include -#include -#include -#include -#include -#include +#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_state_tracker.h" +#include "ardour/session.h" +#include "ardour/smf_source.h" #include "i18n.h" using namespace ARDOUR; - -string SMFSource::_search_path; - -/*sigc::signal 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)) - , _channel(0) - , _flags (Flag(flags | Writable)) // FIXME: this needs to be writable for now - , _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) -{ - /* constructor used for new internal-to-session files. file cannot exist */ - - if (init (path, false)) { +using namespace Glib; + +/** Constructor used for new internal-to-session files. File cannot exist. */ +SMFSource::SMFSource (Session& s, const ustring& path, Source::Flag flags) + : Source(s, DataType::MIDI, path, flags) + , MidiSource(s, path) + , FileSource(s, DataType::MIDI, path, flags) + , Evoral::SMF() + , _last_ev_time_beats(0.0) + , _last_ev_time_frames(0) + , _smf_last_read_end (0) +{ + 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); + load_model(true, true); // FIXME } -SMFSource::SMFSource (Session& s, const XMLNode& node) - : MidiSource (s, node) - , _channel(0) - , _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) +/** Constructor used for existing internal-to-session files. */ +SMFSource::SMFSource (Session& s, const XMLNode& node, bool must_exist) + : Source(s, node) + , MidiSource(s, node) + , FileSource(s, node, must_exist) + , _last_ev_time_beats(0.0) + , _last_ev_time_frames(0) + , _smf_last_read_end (0) { - /* constructor used for existing internal-to-session files. file must exist */ - - if (set_state (node)) { + if (set_state(node, Stateful::loading_state_version)) { throw failed_constructor (); } - - if (init (_name, true)) { + + if (init(_path, true)) { throw failed_constructor (); } - - if (open()) { + + if (open(_path)) { throw failed_constructor (); } - - assert(_name.find("/") == string::npos); + + load_model(true, true); // FIXME } SMFSource::~SMFSource () @@ -110,820 +100,382 @@ SMFSource::~SMFSource () } } -bool -SMFSource::removable () const -{ - return (_flags & Removable) && ((_flags & RemoveAtDestroy) || - ((_flags & RemovableIfEmpty) && is_empty())); -} - -int -SMFSource::init (string pathstr, bool must_exist) -{ - bool is_new = false; - - if (!find (pathstr, must_exist, is_new)) { - cerr << "cannot find " << pathstr << " with me = " << must_exist << endl; - return -1; - } - - if (is_new && must_exist) { - return -1; - } - - assert(_name.find("/") == string::npos); - return 0; -} - -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+"); - _track_size = 4; - - // Write a tentative header just to pad things out so writing happens in the right spot - flush_header(); - write_footer(); - seek_to_end(); - } - - return (_fd == 0) ? -1 : 0; -} - -void -SMFSource::seek_to_end() -{ - fseek(_fd, -4, SEEK_END); -} - -int -SMFSource::flush_header () -{ - // FIXME: write timeline position somehow? - - //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(_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, 0); - write_chunk("MThd", 6, data); - write_chunk_header("MTrk", _track_size); - - fflush(_fd); - - return 0; -} - -int -SMFSource::flush_footer() -{ - seek_to_end(); - write_footer(); - seek_to_end(); - - return 0; -} - -void -SMFSource::write_footer() -{ - //cerr << "SMF " << name() << " writing EOT at byte " << ftell(_fd) << endl; - - 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; - - /*if (ev.buffer == NULL) - ev.buffer = (Byte*)malloc(sizeof(Byte) * ev.size);*/ - - (*buf)[0] = (unsigned char)status; - if (event_size > 1) - fread((*buf) + 1, 1, *size - 1, _fd); - - /*printf("%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) const +SMFSource::read_unlocked (Evoral::EventSink& destination, sframes_t source_start, + sframes_t start, nframes_t duration, + sframes_t stamp_offset, sframes_t negative_stamp_offset, + MidiStateTracker* tracker) const { - //cerr << "SMF " << name() << " read " << start << ", count=" << cnt << ", offset=" << stamp_offset << endl; - - // 64 bits ought to be enough for anybody + int ret = 0; 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, 0); - - // 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 uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * _ppqn); - - while (!feof(_fd)) { - int ret = read_event(&ev_delta_t, &ev_size, &ev_buffer); + BeatsFramesConverter converter(_session.tempo_map(), source_start); + + const uint64_t start_ticks = (uint64_t)(converter.from(start) * ppqn()); + + if (_smf_last_read_end == 0 || start != _smf_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 + _smf_last_read_end = start + duration; + return duration; + } + time += ev_delta_t; // accumulate delta time + } + } + + _smf_last_read_end = start + duration; + + while (true) { + ret = read_event(&ev_delta_t, &ev_size, &ev_buffer); if (ret == -1) { // EOF - //cerr << "SMF - EOF\n"; break; } - if (ret == 0) { // meta-event (skipped) - //cerr << "SMF - META\n"; - time += ev_delta_t; // just accumulate delta time and ignore event + time += ev_delta_t; // accumulate delta time + + if (ret == 0) { // meta-event (skipped, just accumulate time) continue; } - time += ev_delta_t; // accumulate delta time + ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]); + +#if 0 + cerr << "+++ SMF source read " + << " delta = " << ev_delta_t + << " time = " << time + << " buf[0] " << hex << (int) ev_buffer[0] << dec + << " type = " << ev_type; +#endif + + assert(time >= start_ticks); + const sframes_t ev_frame_time = converter.to(time / (double)ppqn()) + stamp_offset; + +#if 0 + cerr << " frames = " << ev_frame_time + << " w/offset = " << ev_frame_time - negative_stamp_offset + << endl; +#endif - if (time >= start_ticks) { - const nframes_t ev_frame_time = (nframes_t)( - ((time / (double)_ppqn) * frames_per_beat)) + stamp_offset; + if (ev_frame_time < start + duration) { + destination.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer); - if (ev_frame_time <= start + cnt) - dst.write(ev_frame_time, ev_size, ev_buffer); - else - break; + if (tracker) { + if (ev_buffer[0] & MIDI_CMD_NOTE_ON) { + tracker->add (ev_buffer[1], ev_buffer[0] & 0xf); + } else if (ev_buffer[0] & MIDI_CMD_NOTE_OFF) { + tracker->remove (ev_buffer[1], ev_buffer[0] & 0xf); + } + } + } 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 duration; } /** All stamps in audio frames */ nframes_t -SMFSource::write_unlocked (MidiRingBuffer& src, nframes_t cnt) +SMFSource::write_unlocked (MidiRingBuffer& source, sframes_t position, nframes_t duration) { _write_data_count = 0; - - double time; - size_t size; - - size_t buf_capacity = 4; - Byte* buf = (Byte*)malloc(buf_capacity); - - if (_model && ! _model->writing()) + + nframes_t time; + Evoral::EventType type; + uint32_t size; + + size_t buf_capacity = 4; + uint8_t* buf = (uint8_t*)malloc(buf_capacity); + + if (_model && ! _model->writing()) { _model->start_write(); + } + + Evoral::MIDIEvent ev; while (true) { - bool ret = src.full_peek(sizeof(double), (Byte*)&time); - if (!ret || time - _timeline_position > _length + cnt) + bool ret = source.peek_time(&time); + if (!ret || time > _last_write_end + duration) { break; + } - ret = src.read_prefix(&time, &size); - if (!ret) + ret = source.read_prefix(&time, &type, &size); + if (!ret) { + cerr << "ERROR: Unable to read event prefix, corrupt MIDI ring buffer" << endl; 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); + ret = source.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; - - const MIDI::Event ev(time, size, buf); - append_event_unlocked(Frames, ev); - - if (_model) - _model->append(ev); - } - - fflush(_fd); - free(buf); - const nframes_t oldlen = _length; - update_length(oldlen, cnt); + assert(time >= position); + time -= position; - ViewDataRangeReady (_timeline_position + oldlen, cnt); /* EMIT SIGNAL */ - - return cnt; -} - + 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; + } -void -SMFSource::append_event_unlocked(EventTimeUnit unit, const MIDI::Event& ev) -{ - /*printf("%s - append chan = %u, time = %lf, size = %u, data = ", _path.c_str(), - (unsigned)ev.channel(), ev.time(), ev.size()); - for (size_t i=0; i < ev.size(); ++i) { - printf("%X ", ev.buffer()[i]); + append_event_unlocked_frames(ev, position); } - printf("\n");*/ - assert(ev.time() >= 0); - assert(ev.time() >= _last_ev_time); - - uint32_t delta_time = 0; - - 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)); - - 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); + if (_model) { + set_default_controls_interpolation(); } - const size_t stamp_size = write_var_len(delta_time); - fwrite(ev.buffer(), 1, ev.size(), _fd); + Evoral::SMF::flush(); + free(buf); - _track_size += stamp_size + ev.size(); - _write_data_count += ev.size(); + ViewDataRangeReady(position + _last_write_end, duration); /* EMIT SIGNAL */ - _last_ev_time = ev.time(); + return duration; } -XMLNode& -SMFSource::get_state () +/** Append an event with a timestamp in beats (double) */ +void +SMFSource::append_event_unlocked_beats (const Evoral::Event& ev) { - XMLNode& root (MidiSource::get_state()); - char buf[16]; - snprintf (buf, sizeof (buf), "0x%x", (int)_flags); - root.add_property ("flags", buf); - return root; -} + assert(_writing); + if (ev.size() == 0) { + return; + } -int -SMFSource::set_state (const XMLNode& node) -{ - const XMLProperty* prop; + /*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");*/ - if (MidiSource::set_state (node)) { - return -1; + assert(ev.time() >= 0); + if (ev.time() < _last_ev_time_beats) { + cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl; + return; } - if ((prop = node.property (X_("flags"))) != 0) { + _length_beats = max(_length_beats, ev.time()); - int ival; - sscanf (prop->value().c_str(), "0x%x", &ival); - _flags = Flag (ival); + 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()); - } else { + Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer()); + _last_ev_time_beats = ev.time(); - _flags = Flag (0); + _write_data_count += ev.size(); + if (_model) { + _model->append(ev); } - - assert(_name.find("/") == string::npos); - - return 0; } +/** Append an event with a timestamp in frames (nframes_t) */ void -SMFSource::mark_for_remove () +SMFSource::append_event_unlocked_frames (const Evoral::Event& ev, sframes_t position) { - if (!writable()) { + assert(_writing); + if (ev.size() == 0) { return; } - _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); - _last_ev_time = 0; -} + /*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");*/ -void -SMFSource::mark_streaming_write_completed () -{ - MidiSource::mark_streaming_write_completed(); - - if (!writable()) { + if (ev.time() < _last_ev_time_frames) { + cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl; return; } - - flush_header(); - flush_footer(); -#if 0 - Glib::Mutex::Lock lm (_lock); + BeatsFramesConverter converter(_session.tempo_map(), position); + + _length_beats = max(_length_beats, converter.from(ev.time())); + const sframes_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())); - next_peak_clear_should_notify = true; + Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer()); + _last_ev_time_frames = ev.time(); - if (_peaks_built || pending_peak_builds.empty()) { - _peaks_built = true; - PeaksReady (); /* EMIT SIGNAL */ + _write_data_count += ev.size(); + + if (_model) { + const double ev_time_beats = converter.from(ev.time()); + const Evoral::Event beat_ev( + ev.event_type(), ev_time_beats, ev.size(), (uint8_t*)ev.buffer()); + _model->append(beat_ev); } -#endif } -void -SMFSource::mark_take (string id) +XMLNode& +SMFSource::get_state () { - if (writable()) { - _take_id = id; - } + return MidiSource::get_state(); } int -SMFSource::move_to_trash (const string trash_dir_name) +SMFSource::set_state (const XMLNode& node, int version) { - string newpath; - - if (!writable()) { + if (Source::set_state (node, version)) { 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. - */ - - newpath = Glib::path_get_dirname (_path); - newpath = Glib::path_get_dirname (newpath); - - newpath += '/'; - newpath += trash_dir_name; - newpath += '/'; - newpath += Glib::path_get_basename (_path); - - 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; - - snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version); - newpath_v = buf; - - while (access (newpath_v.c_str(), F_OK) == 0 && version < 999) { - snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), ++version); - newpath_v = buf; - } - - if (version == 999) { - 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; + if (MidiSource::set_state (node, version)) { 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()); + + if (FileSource::set_state (node, version)) { 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 */ - - vector dirs; - int cnt; - string fullpath; - string keeppath; - - if (_search_path.length() == 0) { - PBD::error << _("FileSource: search path not set") << endmsg; - goto out; - } - - split (_search_path, dirs, ':'); - - cnt = 0; - - for (vector::iterator i = dirs.begin(); i != dirs.end(); ++i) { - - fullpath = *i; - if (fullpath[fullpath.length()-1] != '/') { - fullpath += '/'; - } - fullpath += pathstr; - - if (access (fullpath.c_str(), R_OK) == 0) { - keeppath = fullpath; - ++cnt; - } - } - - if (cnt > 1) { - - PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg; - goto out; - - } else if (cnt == 0) { - - if (must_exist) { - PBD::error << string_compose(_("Filesource: cannot find required file (%1): while searching %2"), pathstr, _search_path) << endmsg; - goto out; - } else { - isnew = true; - } - } - - _name = pathstr; - _path = keeppath; - ret = true; - - } else { - - /* external files and/or very very old style sessions include full paths */ - - _path = pathstr; - _name = pathstr.substr (pathstr.find_last_of ('/') + 1); - - if (access (_path.c_str(), R_OK) != 0) { - - /* file does not exist or we cannot read it */ - - if (must_exist) { - PBD::error << string_compose(_("Filesource: cannot find required file (%1): %2"), _path, strerror (errno)) << endmsg; - goto out; - } - - if (errno != ENOENT) { - PBD::error << string_compose(_("Filesource: cannot check for existing file (%1): %2"), _path, strerror (errno)) << endmsg; - goto out; - } - - /* a new file */ - - isnew = true; - ret = true; - - } else { - - /* already exists */ - - ret = true; - } - } - - out: - return ret; -} - void -SMFSource::set_search_path (string p) +SMFSource::mark_streaming_midi_write_started (NoteMode mode, sframes_t start_frame) { - _search_path = p; + Glib::Mutex::Lock lm (_lock); + 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::set_allow_remove_if_empty (bool yn) -{ - if (writable()) { - _allow_remove_if_empty = yn; - } -} - -int -SMFSource::set_source_name (string newname, bool destructive) +SMFSource::mark_streaming_write_completed () { - //Glib::Mutex::Lock lm (_lock); FIXME - string oldpath = _path; - 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 midi path") << endmsg; - return -1; - } + Glib::Mutex::Lock lm (_lock); + MidiSource::mark_streaming_write_completed(); - if (rename (oldpath.c_str(), newpath.c_str()) != 0) { - PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg; - return -1; + if (!writable()) { + return; } - _name = Glib::path_get_basename (newpath); - _path = newpath; - - return 0;//rename_peakfile (peak_path (_path)); + _model->set_edited(false); + Evoral::SMF::end_write (); } 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) +SMFSource::safe_midi_file_extension (const Glib::ustring& file) { - 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 (file.rfind(".mid") != Glib::ustring::npos); } void -SMFSource::load_model(bool lock, bool force_reload) +SMFSource::load_model (bool lock, bool force_reload) { - if (_writing) + if (_writing) { return; + } + boost::shared_ptr lm; if (lock) - Glib::Mutex::Lock lm (_lock); + lm = boost::shared_ptr(new Glib::Mutex::Lock(_lock)); - if (_model && !force_reload && !_model->empty()) { - //cerr << _name << " NOT reloading model " << _model.get() << " (" << _model->n_notes() - // << " notes)" << endl; + if (_model && !force_reload) { return; - } else { - cerr << _name << " loading model" << endl; } if (! _model) { - _model = boost::shared_ptr(new MidiModel(_session)); - cerr << _name << " loaded new model " << _model.get() << endl; + _model = boost::shared_ptr(new MidiModel(this)); + //cerr << _name << " loaded new model " << _model.get() << endl; } else { - cerr << _name << " reloading model " << _model.get() - << " (" << _model->n_notes() << " notes)" <n_notes() << " notes)" << endl;*/ _model->clear(); } _model->start_write(); - - fseek(_fd, _header_size, 0); + Evoral::SMF::seek_to_start(); uint64_t time = 0; /* in SMF ticks */ - MIDI::Event ev; - + Evoral::Event 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; - - 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(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); } - 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 + + _length_beats = max(_length_beats, ev.time()); } - + + set_default_controls_interpolation(); + _model->end_write(false); + _model->set_edited(false); - free(ev.buffer()); + _model_iter = _model->begin(); + + free(buf); +} + +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( + EventTypeMap::instance().interpolation_of((*c).first)); + } } void -SMFSource::destroy_model() +SMFSource::destroy_model () { //cerr << _name << " destroying model " << _model.get() << endl; _model.reset(); } +void +SMFSource::flush_midi () +{ + Evoral::SMF::end_write(); +} +