X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_source.cc;h=1093cb2c4b69bc3280743c79bb5bb37780917726;hb=9a0d7cafebcda82c4745b1db7d4d36aa37b8db4b;hp=802324e19bac620ff6ad53cc0baeb0df7adbf237;hpb=5952c48a848926edb02b5d630e36cc461c893964;p=ardour.git diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc index 802324e19b..1093cb2c4b 100644 --- a/libs/ardour/midi_source.cc +++ b/libs/ardour/midi_source.cc @@ -1,6 +1,6 @@ /* Copyright (C) 2006 Paul Davis - Written by Dave Robillard, 2006 + Author: David Robillard This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -28,10 +28,22 @@ #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" @@ -39,26 +51,32 @@ using namespace std; using namespace ARDOUR; using namespace PBD; -sigc::signal MidiSource::MidiSourceCreated; +PBD::Signal1 MidiSource::MidiSourceCreated; -MidiSource::MidiSource (string name) - : Source (name, DataType::MIDI) +MidiSource::MidiSource (Session& s, string name, Source::Flag flags) + : Source(s, DataType::MIDI, name, flags) + , _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 (const XMLNode& node) - : Source (node) +MidiSource::MidiSource (Session& s, const XMLNode& node) + : Source(s, node) + , _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 () { } @@ -72,44 +90,434 @@ 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; } -jack_nframes_t -MidiSource::read (MidiBuffer& dst, jack_nframes_t start, jack_nframes_t cnt) 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); - return read_unlocked (dst, start, cnt); + + BeatsFramesConverter converter(_session.tempo_map(), source_start); + + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("MidiSource::midi-read() sstart %1 start %2 cnt %3 tracker %4\n", + source_start, start, cnt, tracker)); + + if (_model) { + Evoral::Sequence::const_iterator& i = _model_iter; + + // 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 cachediterator for %1 / %2\n", _name, source_start, start)); + } + + _last_read_end = start + cnt; + + // Read events up to end + for (; i != _model->end(); ++i) { + const framecnt_t time_frames = converter.to(i->time()); + if (time_frames < start + cnt) { + /* 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()); + + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("%1: add event @ %2 type %3 size = %4\n", + _name, time_frames + source_start, i->event_type(), i->size())); + + if (tracker) { + Evoral::MIDIEvent& ev (*(Evoral::MIDIEvent*) (&(*i))); + if (ev.is_note_on()) { + DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 track note on %2 @ %3 velocity %4\n", _name, (int) 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 track note off %2 @ %3\n", _name, (int) ev.note(), time_frames)); + tracker->remove (ev.note(), ev.channel()); + } + } + } else { + break; + } + } + return cnt; + } else { + return read_unlocked (dst, source_start, start, cnt, tracker); + } } -jack_nframes_t -MidiSource::write (MidiBuffer& dst, jack_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); + cerr << "MidiSource calling write unlocked\n"; + const framecnt_t ret = write_unlocked (source, source_start, duration); + + if (duration == max_framecnt) { + _last_read_end = 0; + } else { + _last_write_end += duration; + } + + cerr << name() << " last write end now @ " << _last_write_end << endl; + return ret; } -bool -MidiSource::file_changed (string path) +void +MidiSource::mark_streaming_midi_write_started (NoteMode mode) { - struct stat stat_file; + if (_model) { + _model->set_note_mode (mode); + _model->start_write (); + } + + _writing = true; +} + +void +MidiSource::mark_write_starting_now () +{ + /* I'm not sure if this is the best way to approach this, but + _last_write_end needs to be set up with the transport frame + when a record actually starts, as it is used by + SMFSource::write_unlocked to decide whether incoming notes + are within the correct time range. + mark_streaming_midi_write_started (perhaps a more logical + place to do this) is not called at exactly the time when + record starts, and I don't think it necessarily can be + because it is not RT-safe. + */ + + set_timeline_position (_session.transport_frame ()); + _last_write_end = _session.transport_frame (); + cerr << name() << " last write set to " << _last_write_end << endl; - int e1 = stat (path.c_str(), &stat_file); - - return ( !e1 ); } +void +MidiSource::mark_streaming_write_started () +{ + NoteMode note_mode = _model ? _model->note_mode() : Sustained; + mark_streaming_midi_write_started (note_mode); +} + +void +MidiSource::mark_midi_streaming_write_completed (Evoral::Sequence::StuckNoteOption option, Evoral::MusicalTime end) +{ + if (_model) { + _model->end_write (option, end); + } + + _writing = false; +} + +void +MidiSource::mark_streaming_write_completed () +{ + mark_midi_streaming_write_completed (Evoral::Sequence::DeleteStuckNotes); +} + +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() +{ + /* this writes a copy of the data to disk. + XXX do we need to do this every time? + */ + + if (_model && _model->edited()) { + + // 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 + */ + + mm->sync_to_source (); + + /* reacquire model */ + + _model = mm; + + } else { + flush_midi(); + } +} + +void +MidiSource::set_note_mode(NoteMode mode) +{ + if (_model) { + _model->set_note_mode(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 */ +}