X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_source.cc;h=d330eb2bcd766f67f0c334f7adc8b63c577c00d2;hb=ed72df29b79f9e2dc7482f07c39010b4523c4a8e;hp=70abb99e567f3dd6f72b312aed7f97d8189871be;hpb=166395c96b8a85d90b9785e629c739494494130f;p=ardour.git diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc index 70abb99e56..d330eb2bcd 100644 --- a/libs/ardour/midi_source.cc +++ b/libs/ardour/midi_source.cc @@ -28,18 +28,22 @@ #include #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" @@ -47,32 +51,39 @@ using namespace std; using namespace ARDOUR; using namespace PBD; -sigc::signal MidiSource::MidiSourceCreated; +PBD::Signal1 MidiSource::MidiSourceCreated; -MidiSource::MidiSource (Session& s, string name) - : Source (s, name, DataType::MIDI) - , _timeline_position(0) - , _writing (false) +MidiSource::MidiSource (Session& s, string name, Source::Flag flags) + : Source(s, DataType::MIDI, name, flags) + , _read_data_count(0) + , _write_data_count(0) + , _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; } -MidiSource::MidiSource (Session& s, const XMLNode& node) - : Source (s, node) - , _timeline_position(0) - , _writing (false) +MidiSource::MidiSource (Session& s, const XMLNode& node) + : Source(s, node) + , _read_data_count(0) + , _write_data_count(0) + , _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(); } } + MidiSource::~MidiSource () { } @@ -86,151 +97,284 @@ MidiSource::get_state () node.add_property ("captured-for", _captured_for); } + for (InterpolationStyleMap::const_iterator i = _interpolation_style.begin(); i != _interpolation_style.end(); ++i) { + XMLNode* child = node.add_child (X_("InterpolationStyle")); + child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first)); + child->add_property (X_("style"), enum_2_string (i->second)); + } + + for (AutomationStateMap::const_iterator i = _automation_state.begin(); i != _automation_state.end(); ++i) { + XMLNode* child = node.add_child (X_("AutomationState")); + child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first)); + child->add_property (X_("state"), enum_2_string (i->second)); + } + return node; } int -MidiSource::set_state (const XMLNode& node) +MidiSource::set_state (const XMLNode& node, int /*version*/) { const XMLProperty* prop; - Source::set_state (node); - if ((prop = node.property ("captured-for")) != 0) { _captured_for = prop->value(); } + XMLNodeList children = node.children (); + for (XMLNodeConstIterator i = children.begin(); i != children.end(); ++i) { + if ((*i)->name() == X_("InterpolationStyle")) { + XMLProperty* prop; + + if ((prop = (*i)->property (X_("parameter"))) == 0) { + error << _("Missing parameter property on InterpolationStyle") << endmsg; + return -1; + } + + Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value()); + + if ((prop = (*i)->property (X_("style"))) == 0) { + error << _("Missing style property on InterpolationStyle") << endmsg; + return -1; + } + + Evoral::ControlList::InterpolationStyle s = static_cast (string_2_enum (prop->value(), s)); + set_interpolation_of (p, s); + + } else if ((*i)->name() == X_("AutomationState")) { + + XMLProperty* prop; + + if ((prop = (*i)->property (X_("parameter"))) == 0) { + error << _("Missing parameter property on AutomationState") << endmsg; + return -1; + } + + Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value()); + + if ((prop = (*i)->property (X_("state"))) == 0) { + error << _("Missing state property on AutomationState") << endmsg; + return -1; + } + + AutoState s = static_cast (string_2_enum (prop->value(), s)); + set_automation_state_of (p, s); + } + } + 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 +bool +MidiSource::empty () const { + return _length_beats == 0; +} + +framecnt_t +MidiSource::length (framepos_t pos) const +{ + if (_length_beats == 0) { + return 0; + } + BeatsFramesConverter converter(_session.tempo_map(), pos); + return converter.to(_length_beats); +} + +void +MidiSource::update_length (framepos_t /*pos*/, framecnt_t /*cnt*/) +{ + // You're not the boss of me! +} + +void +MidiSource::invalidate () +{ + _model_iter_valid = false; + _model_iter.invalidate(); +} + +/** @param filtered A set of parameters whose MIDI messages will not be returned */ +framecnt_t +MidiSource::midi_read (Evoral::EventSink& dst, framepos_t source_start, + framepos_t start, framecnt_t cnt, + MidiStateTracker* tracker, + std::set const & filtered) const +{ Glib::Mutex::Lock lm (_lock); - if (_model) { - // 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)); -#define BEATS_TO_FRAMES(t) (((t) * frames_per_beat) + 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; - for (i = _model->begin(); i != _model->end(); ++i) { - if (BEATS_TO_FRAMES(i->time()) >= start) { + + // 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(0, false, filtered); i != _model->end(); ++i) { + 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 framecnt_t time_frames = converter.to(i->time()); if (time_frames < start + cnt) { - dst.write(time_frames, i->event_type(), i->size(), i->buffer()); + /* convert event times to session frames by adding on the source start position in session frames */ + dst.write (time_frames + source_start, 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 velocity %4\n", _name, ev.note(), time_frames, (int) ev.velocity())); + 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, tracker); } } -nframes_t -MidiSource::midi_write (MidiRingBuffer& dst, nframes_t cnt) +/** Write data from a MidiRingBuffer to this source. + * @param source Source to read from. + * @param source_start This source's start position in session frames. + */ +framecnt_t +MidiSource::midi_write (MidiRingBuffer& source, framepos_t source_start, framecnt_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 framecnt_t ret = write_unlocked (source, source_start, duration); + _last_write_end += duration; + return ret; } void -MidiSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame) +MidiSource::mark_streaming_midi_write_started (NoteMode mode, framepos_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; } +boost::shared_ptr +MidiSource::clone (Evoral::MusicalTime begin, Evoral::MusicalTime end) +{ + string newname = PBD::basename_nosuffix(_name.val()); + string newpath; + + /* get a new name for the MIDI file we're going to write to + */ + + do { + + newname = bump_name_once (newname, '-'); + /* XXX build path safely */ + newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid"; + + } while (Glib::file_test (newpath, Glib::FILE_TEST_EXISTS)); + + boost::shared_ptr newsrc = boost::dynamic_pointer_cast( + SourceFactory::createWritable(DataType::MIDI, _session, + newpath, string(), false, _session.frame_rate())); + + newsrc->set_timeline_position(_timeline_position); + newsrc->copy_interpolation_from (this); + newsrc->copy_automation_state_from (this); + + if (_model) { + if (begin == Evoral::MinMusicalTime && end == Evoral::MaxMusicalTime) { + _model->write_to (newsrc); + } else { + _model->write_section_to (newsrc, begin, end); + } + } else { + error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()")); + return boost::shared_ptr(); + } + + newsrc->flush_midi(); + + /* force a reload of the model if the range is partial */ + + if (begin != Evoral::MinMusicalTime || end != Evoral::MaxMusicalTime) { + newsrc->load_model (true, true); + } else { + newsrc->set_model (_model); + } + + return newsrc; +} + void MidiSource::session_saved() { - flush_midi(); + /* this writes a copy of the data to disk. + XXX do we need to do this every time? + */ if (_model && _model->edited()) { - string newname; - const string basename = PBD::basename_nosuffix(_name); - string::size_type last_dash = basename.find_last_of("-"); - if (last_dash == string::npos || last_dash == basename.find_first_of("-")) { - newname = basename + "-1"; - } else { - stringstream ss(basename.substr(last_dash+1)); - unsigned write_count = 0; - ss >> write_count; - cerr << "WRITE COUNT: " << write_count << endl; - ++write_count; // start at 1 - ss.clear(); - ss << basename.substr(0, last_dash) << "-" << write_count; - newname = ss.str(); - } - string newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid"; + // if the model is edited, write its contents into + // the current source file (overwiting previous contents. + + /* temporarily drop our reference to the model so that + as the model pushes its current state to us, we don't + try to update it. + */ + + boost::shared_ptr mm = _model ; + _model.reset (); + + /* flush model contents to disk + */ - boost::shared_ptr newsrc = boost::dynamic_pointer_cast( - SourceFactory::createWritable(DataType::MIDI, _session, newpath, 1, 0, true)); + mm->sync_to_source (); - newsrc->set_timeline_position(_timeline_position); - _model->write_to(newsrc); + /* reacquire model */ - // cyclic dependency here, ugly :( - newsrc->set_model(_model); - _model->set_midi_source(newsrc.get()); - - newsrc->flush_midi(); + _model = mm; - Switched.emit(newsrc); + } else { + flush_midi(); } } @@ -242,3 +386,108 @@ MidiSource::set_note_mode(NoteMode mode) } } +void +MidiSource::drop_model () +{ + _model.reset(); + ModelChanged (); /* EMIT SIGNAL */ +} + +void +MidiSource::set_model (boost::shared_ptr m) +{ + _model = m; + ModelChanged (); /* EMIT SIGNAL */ +} + +/** @return Interpolation style that should be used for control parameter \a p */ +Evoral::ControlList::InterpolationStyle +MidiSource::interpolation_of (Evoral::Parameter p) const +{ + InterpolationStyleMap::const_iterator i = _interpolation_style.find (p); + if (i == _interpolation_style.end()) { + return EventTypeMap::instance().interpolation_of (p); + } + + return i->second; +} + +AutoState +MidiSource::automation_state_of (Evoral::Parameter p) const +{ + AutomationStateMap::const_iterator i = _automation_state.find (p); + if (i == _automation_state.end()) { + /* default to `play', otherwise if MIDI is recorded / + imported with controllers etc. they are by default + not played back, which is a little surprising. + */ + return Play; + } + + return i->second; +} + +/** Set interpolation style to be used for a given parameter. This change will be + * propagated to anyone who needs to know. + */ +void +MidiSource::set_interpolation_of (Evoral::Parameter p, Evoral::ControlList::InterpolationStyle s) +{ + if (interpolation_of (p) == s) { + return; + } + + if (EventTypeMap::instance().interpolation_of (p) == s) { + /* interpolation type is being set to the default, so we don't need a note in our map */ + _interpolation_style.erase (p); + } else { + _interpolation_style[p] = s; + } + + InterpolationChanged (p, s); /* EMIT SIGNAL */ +} + +void +MidiSource::set_automation_state_of (Evoral::Parameter p, AutoState s) +{ + if (automation_state_of (p) == s) { + return; + } + + if (s == Play) { + /* automation state is being set to the default, so we don't need a note in our map */ + _automation_state.erase (p); + } else { + _automation_state[p] = s; + } + + AutomationStateChanged (p, s); /* EMIT SIGNAL */ +} + +void +MidiSource::copy_interpolation_from (boost::shared_ptr s) +{ + copy_interpolation_from (s.get ()); +} + +void +MidiSource::copy_automation_state_from (boost::shared_ptr s) +{ + copy_automation_state_from (s.get ()); +} + +void +MidiSource::copy_interpolation_from (MidiSource* s) +{ + _interpolation_style = s->_interpolation_style; + + /* XXX: should probably emit signals here */ +} + +void +MidiSource::copy_automation_state_from (MidiSource* s) +{ + _automation_state = s->_automation_state; + + /* XXX: should probably emit signals here */ +}