X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_source.cc;h=2b0efd78e165d7a02f40433722a72e241e3c813c;hb=8f59346592b8232e910ce0bbdc247cf8cecde4dd;hp=b539d5b9d392e6d0bf3b1bd7c9b37d5a3b61279b;hpb=022818b4a796f52c0a91eea42e65aec0bc7bed43;p=ardour.git diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc index b539d5b9d3..2b0efd78e1 100644 --- a/libs/ardour/midi_source.cc +++ b/libs/ardour/midi_source.cc @@ -28,18 +28,20 @@ #include #include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include +#include "pbd/xml++.h" +#include "pbd/pthread_utils.h" +#include "pbd/basename.h" + +#include "ardour/audioengine.h" +#include "ardour/debug.h" +#include "ardour/midi_model.h" +#include "ardour/midi_ring_buffer.h" +#include "ardour/midi_state_tracker.h" +#include "ardour/midi_source.h" +#include "ardour/session.h" +#include "ardour/session_directory.h" +#include "ardour/source_factory.h" +#include "ardour/tempo.h" #include "i18n.h" @@ -47,30 +49,34 @@ using namespace std; using namespace ARDOUR; using namespace PBD; -sigc::signal MidiSource::MidiSourceCreated; +PBD::Signal1 MidiSource::MidiSourceCreated; MidiSource::MidiSource (Session& s, string name, Source::Flag flags) - : Source (s, DataType::MIDI, name, flags) + : Source(s, DataType::MIDI, name, flags) , _read_data_count(0) , _write_data_count(0) - , _converter(s, _timeline_position) - , _writing (false) + , _writing(false) + , _model_iter_valid(false) + , _length_beats(0.0) , _last_read_end(0) + , _last_write_end(0) { } -MidiSource::MidiSource (Session& s, const XMLNode& node) - : Source (s, node) +MidiSource::MidiSource (Session& s, const XMLNode& node) + : Source(s, node) , _read_data_count(0) , _write_data_count(0) - , _converter(s, _timeline_position) - , _writing (false) + , _writing(false) + , _model_iter_valid(false) + , _length_beats(0.0) , _last_read_end(0) + , _last_write_end(0) { _read_data_count = 0; _write_data_count = 0; - if (set_state (node)) { + if (set_state (node, Stateful::loading_state_version)) { throw failed_constructor(); } } @@ -92,7 +98,7 @@ MidiSource::get_state () } int -MidiSource::set_state (const XMLNode& node) +MidiSource::set_state (const XMLNode& node, int /*version*/) { const XMLProperty* prop; @@ -103,94 +109,115 @@ MidiSource::set_state (const XMLNode& node) return 0; } -nframes_t -MidiSource::midi_read (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, - nframes_t stamp_offset, nframes_t negative_stamp_offset) const +sframes_t +MidiSource::length (sframes_t pos) const { + BeatsFramesConverter converter(_session.tempo_map(), pos); + return converter.to(_length_beats); +} +void +MidiSource::update_length (sframes_t /*pos*/, sframes_t /*cnt*/) +{ + // You're not the boss of me! +} + +void +MidiSource::invalidate () +{ + _model_iter_valid = false; + _model_iter.invalidate(); +} + +nframes_t +MidiSource::midi_read (Evoral::EventSink& dst, sframes_t source_start, + sframes_t start, nframes_t cnt, + sframes_t stamp_offset, sframes_t negative_stamp_offset, + MidiStateTracker* tracker) const +{ Glib::Mutex::Lock lm (_lock); - if (_model) { -#define BEATS_TO_FRAMES(t) (_converter.to(t) + stamp_offset - negative_stamp_offset) + BeatsFramesConverter converter(_session.tempo_map(), source_start); + + if (_model) { Evoral::Sequence::const_iterator& i = _model_iter; - - if (_last_read_end == 0 || start != _last_read_end) { - cerr << "MidiSource::midi_read seeking to frame " << start << endl; + + // If the cached iterator is invalid, search for the first event past start + if (_last_read_end == 0 || start != _last_read_end || !_model_iter_valid) { + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("*** %1 search for relevant iterator for %1 / %2\n", _name, source_start, start)); for (i = _model->begin(); i != _model->end(); ++i) { - if (BEATS_TO_FRAMES(i->time()) >= start) { + if (converter.to(i->time()) >= start) { break; } } + _model_iter_valid = true; + } else { + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("*** %1 use cached iterator for %1 / %2\n", _name, source_start, start)); } - + _last_read_end = start + cnt; + // Read events up to end for (; i != _model->end(); ++i) { - const nframes_t time_frames = BEATS_TO_FRAMES(i->time()); + const sframes_t time_frames = converter.to(i->time()); if (time_frames < start + cnt) { - dst.write(time_frames, i->event_type(), i->size(), i->buffer()); + dst.write(time_frames + stamp_offset - negative_stamp_offset, + i->event_type(), i->size(), i->buffer()); + if (tracker) { + Evoral::MIDIEvent& ev (*(Evoral::MIDIEvent*) (&(*i))); + if (ev.is_note_on()) { + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 add note on %2 @ %3\n", _name, ev.note(), time_frames)); + tracker->add (ev.note(), ev.channel()); + } else if (ev.is_note_off()) { + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 add note off %2 @ %3\n", _name, ev.note(), time_frames)); + tracker->remove (ev.note(), ev.channel()); + } + } } else { break; } } return cnt; } else { - return read_unlocked (dst, start, cnt, stamp_offset, negative_stamp_offset); + return read_unlocked (dst, source_start, start, cnt, stamp_offset, negative_stamp_offset, tracker); } } nframes_t -MidiSource::midi_write (MidiRingBuffer& dst, nframes_t cnt) +MidiSource::midi_write (MidiRingBuffer& source, sframes_t source_start, nframes_t duration) { Glib::Mutex::Lock lm (_lock); - return write_unlocked (dst, cnt); -} - -bool -MidiSource::file_changed (string path) -{ - struct stat stat_file; - - int e1 = stat (path.c_str(), &stat_file); - - return !e1; + const nframes_t ret = write_unlocked (source, source_start, duration); + _last_write_end += duration; + return ret; } void -MidiSource::set_timeline_position (int64_t pos) +MidiSource::mark_streaming_midi_write_started (NoteMode mode, sframes_t start_frame) { - Source::set_timeline_position(pos); - _converter.set_origin(pos); -} - -void -MidiSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame) -{ - set_timeline_position(start_frame); // why do I have a feeling this can break somehow... + set_timeline_position(start_frame); if (_model) { _model->set_note_mode(mode); _model->start_write(); } - + + _last_write_end = start_frame; _writing = true; } void MidiSource::mark_streaming_write_started () { - if (_model) { - _model->start_write(); - } - - _writing = true; + NoteMode note_mode = _model ? _model->note_mode() : Sustained; + mark_streaming_midi_write_started(note_mode, _session.transport_frame()); } void MidiSource::mark_streaming_write_completed () { if (_model) { - _model->end_write(false); // FIXME: param? + _model->end_write(false); } _writing = false; @@ -203,7 +230,7 @@ MidiSource::session_saved() if (_model && _model->edited()) { string newname; - const string basename = PBD::basename_nosuffix(_name); + const string basename = PBD::basename_nosuffix(_name.val()); string::size_type last_dash = basename.find_last_of("-"); if (last_dash == string::npos || last_dash == basename.find_first_of("-")) { newname = basename + "-1"; @@ -211,7 +238,7 @@ MidiSource::session_saved() stringstream ss(basename.substr(last_dash+1)); unsigned write_count = 0; ss >> write_count; - cerr << "WRITE COUNT: " << write_count << endl; + // cerr << "WRITE COUNT: " << write_count << endl; ++write_count; // start at 1 ss.clear(); ss << basename.substr(0, last_dash) << "-" << write_count; @@ -222,7 +249,7 @@ MidiSource::session_saved() boost::shared_ptr newsrc = boost::dynamic_pointer_cast( SourceFactory::createWritable(DataType::MIDI, _session, - newpath, true, false, _session.frame_rate())); + newpath, false, _session.frame_rate())); newsrc->set_timeline_position(_timeline_position); _model->write_to(newsrc); @@ -230,10 +257,10 @@ MidiSource::session_saved() // cyclic dependency here, ugly :( newsrc->set_model(_model); _model->set_midi_source(newsrc.get()); - + newsrc->flush_midi(); - Switched.emit(newsrc); + Switched (newsrc); /* EMIT SIGNAL */ } }