git-svn-id: svn://localhost/ardour2/branches/3.0@8314 d708f5d6-7413-0410-9779-e7cbd77b26cf
494 lines
13 KiB
C++
494 lines
13 KiB
C++
/*
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Copyright (C) 2006 Paul Davis
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Written by Dave Robillard, 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <float.h>
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#include <cerrno>
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#include <ctime>
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#include <cmath>
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#include <iomanip>
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#include <algorithm>
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#include <glibmm/fileutils.h>
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#include "pbd/xml++.h"
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#include "pbd/pthread_utils.h"
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#include "pbd/basename.h"
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#include "ardour/audioengine.h"
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#include "ardour/debug.h"
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#include "ardour/midi_model.h"
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#include "ardour/midi_ring_buffer.h"
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#include "ardour/midi_state_tracker.h"
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#include "ardour/midi_source.h"
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#include "ardour/session.h"
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#include "ardour/session_directory.h"
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#include "ardour/source_factory.h"
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#include "ardour/tempo.h"
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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PBD::Signal1<void,MidiSource*> MidiSource::MidiSourceCreated;
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MidiSource::MidiSource (Session& s, string name, Source::Flag flags)
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: Source(s, DataType::MIDI, name, flags)
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, _read_data_count(0)
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, _write_data_count(0)
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, _writing(false)
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, _model_iter_valid(false)
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, _length_beats(0.0)
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, _last_read_end(0)
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, _last_write_end(0)
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{
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}
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MidiSource::MidiSource (Session& s, const XMLNode& node)
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: Source(s, node)
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, _read_data_count(0)
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, _write_data_count(0)
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, _writing(false)
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, _model_iter_valid(false)
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, _length_beats(0.0)
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, _last_read_end(0)
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, _last_write_end(0)
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{
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_read_data_count = 0;
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_write_data_count = 0;
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if (set_state (node, Stateful::loading_state_version)) {
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throw failed_constructor();
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}
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}
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MidiSource::~MidiSource ()
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{
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}
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XMLNode&
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MidiSource::get_state ()
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{
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XMLNode& node (Source::get_state());
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if (_captured_for.length()) {
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node.add_property ("captured-for", _captured_for);
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}
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for (InterpolationStyleMap::const_iterator i = _interpolation_style.begin(); i != _interpolation_style.end(); ++i) {
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XMLNode* child = node.add_child (X_("InterpolationStyle"));
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child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
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child->add_property (X_("style"), enum_2_string (i->second));
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}
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for (AutomationStateMap::const_iterator i = _automation_state.begin(); i != _automation_state.end(); ++i) {
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XMLNode* child = node.add_child (X_("AutomationState"));
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child->add_property (X_("parameter"), EventTypeMap::instance().to_symbol (i->first));
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child->add_property (X_("state"), enum_2_string (i->second));
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}
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return node;
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}
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int
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MidiSource::set_state (const XMLNode& node, int /*version*/)
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{
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const XMLProperty* prop;
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if ((prop = node.property ("captured-for")) != 0) {
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_captured_for = prop->value();
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}
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XMLNodeList children = node.children ();
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for (XMLNodeConstIterator i = children.begin(); i != children.end(); ++i) {
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if ((*i)->name() == X_("InterpolationStyle")) {
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XMLProperty* prop;
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if ((prop = (*i)->property (X_("parameter"))) == 0) {
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error << _("Missing parameter property on InterpolationStyle") << endmsg;
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return -1;
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}
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Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
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if ((prop = (*i)->property (X_("style"))) == 0) {
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error << _("Missing style property on InterpolationStyle") << endmsg;
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return -1;
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}
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Evoral::ControlList::InterpolationStyle s = static_cast<Evoral::ControlList::InterpolationStyle> (string_2_enum (prop->value(), s));
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set_interpolation_of (p, s);
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} else if ((*i)->name() == X_("AutomationState")) {
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XMLProperty* prop;
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if ((prop = (*i)->property (X_("parameter"))) == 0) {
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error << _("Missing parameter property on AutomationState") << endmsg;
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return -1;
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}
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Evoral::Parameter p = EventTypeMap::instance().new_parameter (prop->value());
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if ((prop = (*i)->property (X_("state"))) == 0) {
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error << _("Missing state property on AutomationState") << endmsg;
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return -1;
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}
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AutoState s = static_cast<AutoState> (string_2_enum (prop->value(), s));
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set_automation_state_of (p, s);
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}
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}
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return 0;
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}
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bool
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MidiSource::empty () const
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{
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return _length_beats == 0;
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}
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framecnt_t
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MidiSource::length (framepos_t pos) const
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{
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if (_length_beats == 0) {
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return 0;
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}
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BeatsFramesConverter converter(_session.tempo_map(), pos);
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return converter.to(_length_beats);
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}
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void
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MidiSource::update_length (framepos_t /*pos*/, framecnt_t /*cnt*/)
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{
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// You're not the boss of me!
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}
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void
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MidiSource::invalidate ()
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{
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_model_iter_valid = false;
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_model_iter.invalidate();
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}
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/** @param filtered A set of parameters whose MIDI messages will not be returned */
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framecnt_t
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MidiSource::midi_read (Evoral::EventSink<framepos_t>& dst, framepos_t source_start,
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framepos_t start, framecnt_t cnt,
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MidiStateTracker* tracker,
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std::set<Evoral::Parameter> const & filtered) const
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{
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Glib::Mutex::Lock lm (_lock);
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BeatsFramesConverter converter(_session.tempo_map(), source_start);
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if (_model) {
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Evoral::Sequence<double>::const_iterator& i = _model_iter;
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// If the cached iterator is invalid, search for the first event past start
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if (_last_read_end == 0 || start != _last_read_end || !_model_iter_valid) {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("*** %1 search for relevant iterator for %1 / %2\n", _name, source_start, start));
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for (i = _model->begin(0, false, filtered); i != _model->end(); ++i) {
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if (converter.to(i->time()) >= start) {
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break;
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}
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}
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_model_iter_valid = true;
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} else {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("*** %1 use cached iterator for %1 / %2\n", _name, source_start, start));
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}
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_last_read_end = start + cnt;
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// Read events up to end
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for (; i != _model->end(); ++i) {
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const framecnt_t time_frames = converter.to(i->time());
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if (time_frames < start + cnt) {
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/* convert event times to session frames by adding on the source start position in session frames */
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dst.write (time_frames + source_start, i->event_type(), i->size(), i->buffer());
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if (tracker) {
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Evoral::MIDIEvent<Evoral::MusicalTime>& ev (*(Evoral::MIDIEvent<Evoral::MusicalTime>*) (&(*i)));
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if (ev.is_note_on()) {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 add note on %2 @ %3 velocity %4\n", _name, ev.note(), time_frames, (int) ev.velocity()));
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tracker->add (ev.note(), ev.channel());
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} else if (ev.is_note_off()) {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("\t%1 add note off %2 @ %3\n", _name, ev.note(), time_frames));
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tracker->remove (ev.note(), ev.channel());
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}
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}
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} else {
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break;
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}
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}
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return cnt;
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} else {
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return read_unlocked (dst, source_start, start, cnt, tracker);
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}
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}
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/** Write data from a MidiRingBuffer to this source.
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* @param source Source to read from.
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* @param source_start This source's start position in session frames.
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*/
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framecnt_t
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MidiSource::midi_write (MidiRingBuffer<framepos_t>& source, framepos_t source_start, framecnt_t duration)
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{
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Glib::Mutex::Lock lm (_lock);
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const framecnt_t ret = write_unlocked (source, source_start, duration);
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_last_write_end += duration;
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return ret;
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}
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void
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MidiSource::mark_streaming_midi_write_started (NoteMode mode, framepos_t start_frame)
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{
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set_timeline_position(start_frame);
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if (_model) {
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_model->set_note_mode(mode);
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_model->start_write();
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}
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_last_write_end = start_frame;
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_writing = true;
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}
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void
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MidiSource::mark_streaming_write_started ()
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{
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NoteMode note_mode = _model ? _model->note_mode() : Sustained;
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mark_streaming_midi_write_started(note_mode, _session.transport_frame());
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}
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void
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MidiSource::mark_streaming_write_completed ()
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{
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if (_model) {
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_model->end_write(false);
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}
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_writing = false;
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}
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boost::shared_ptr<MidiSource>
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MidiSource::clone (Evoral::MusicalTime begin, Evoral::MusicalTime end)
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{
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string newname = PBD::basename_nosuffix(_name.val());
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string newpath;
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/* get a new name for the MIDI file we're going to write to
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*/
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do {
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newname = bump_name_once (newname, '-');
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/* XXX build path safely */
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newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid";
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} while (Glib::file_test (newpath, Glib::FILE_TEST_EXISTS));
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boost::shared_ptr<MidiSource> newsrc = boost::dynamic_pointer_cast<MidiSource>(
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SourceFactory::createWritable(DataType::MIDI, _session,
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newpath, string(), false, _session.frame_rate()));
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newsrc->set_timeline_position(_timeline_position);
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newsrc->copy_interpolation_from (this);
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newsrc->copy_automation_state_from (this);
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if (_model) {
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if (begin == Evoral::MinMusicalTime && end == Evoral::MaxMusicalTime) {
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_model->write_to (newsrc);
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} else {
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_model->write_section_to (newsrc, begin, end);
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}
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} else {
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error << string_compose (_("programming error: %1"), X_("no model for MidiSource during ::clone()"));
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return boost::shared_ptr<MidiSource>();
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}
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newsrc->flush_midi();
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/* force a reload of the model if the range is partial */
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if (begin != Evoral::MinMusicalTime || end != Evoral::MaxMusicalTime) {
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newsrc->load_model (true, true);
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} else {
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newsrc->set_model (_model);
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}
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return newsrc;
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}
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void
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MidiSource::session_saved()
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{
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/* this writes a copy of the data to disk.
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XXX do we need to do this every time?
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*/
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if (_model && _model->edited()) {
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// if the model is edited, write its contents into
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// the current source file (overwiting previous contents.
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/* temporarily drop our reference to the model so that
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as the model pushes its current state to us, we don't
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try to update it.
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*/
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boost::shared_ptr<MidiModel> mm = _model ;
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_model.reset ();
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/* flush model contents to disk
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*/
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mm->sync_to_source ();
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/* reacquire model */
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_model = mm;
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} else {
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flush_midi();
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}
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}
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void
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MidiSource::set_note_mode(NoteMode mode)
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{
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if (_model) {
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_model->set_note_mode(mode);
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}
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}
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void
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MidiSource::drop_model ()
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{
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_model.reset();
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ModelChanged (); /* EMIT SIGNAL */
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}
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void
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MidiSource::set_model (boost::shared_ptr<MidiModel> m)
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{
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_model = m;
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ModelChanged (); /* EMIT SIGNAL */
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}
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/** @return Interpolation style that should be used for control parameter \a p */
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Evoral::ControlList::InterpolationStyle
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MidiSource::interpolation_of (Evoral::Parameter p) const
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{
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InterpolationStyleMap::const_iterator i = _interpolation_style.find (p);
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if (i == _interpolation_style.end()) {
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return EventTypeMap::instance().interpolation_of (p);
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}
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return i->second;
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}
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AutoState
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MidiSource::automation_state_of (Evoral::Parameter p) const
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{
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AutomationStateMap::const_iterator i = _automation_state.find (p);
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if (i == _automation_state.end()) {
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/* default to `play', otherwise if MIDI is recorded /
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imported with controllers etc. they are by default
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not played back, which is a little surprising.
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*/
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return Play;
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}
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return i->second;
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}
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/** Set interpolation style to be used for a given parameter. This change will be
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* propagated to anyone who needs to know.
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*/
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void
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MidiSource::set_interpolation_of (Evoral::Parameter p, Evoral::ControlList::InterpolationStyle s)
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{
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if (interpolation_of (p) == s) {
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return;
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}
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if (EventTypeMap::instance().interpolation_of (p) == s) {
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/* interpolation type is being set to the default, so we don't need a note in our map */
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_interpolation_style.erase (p);
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} else {
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_interpolation_style[p] = s;
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}
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InterpolationChanged (p, s); /* EMIT SIGNAL */
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}
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void
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MidiSource::set_automation_state_of (Evoral::Parameter p, AutoState s)
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{
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if (automation_state_of (p) == s) {
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return;
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}
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if (s == Play) {
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/* automation state is being set to the default, so we don't need a note in our map */
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_automation_state.erase (p);
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} else {
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_automation_state[p] = s;
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}
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AutomationStateChanged (p, s); /* EMIT SIGNAL */
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}
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void
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MidiSource::copy_interpolation_from (boost::shared_ptr<MidiSource> s)
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{
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copy_interpolation_from (s.get ());
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}
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void
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MidiSource::copy_automation_state_from (boost::shared_ptr<MidiSource> s)
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{
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copy_automation_state_from (s.get ());
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}
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void
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MidiSource::copy_interpolation_from (MidiSource* s)
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{
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_interpolation_style = s->_interpolation_style;
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/* XXX: should probably emit signals here */
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}
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void
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MidiSource::copy_automation_state_from (MidiSource* s)
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{
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_automation_state = s->_automation_state;
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/* XXX: should probably emit signals here */
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}
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