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-rw-r--r--libs/ardour/midi_track.cc769
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diff --git a/libs/ardour/midi_track.cc b/libs/ardour/midi_track.cc
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+++ b/libs/ardour/midi_track.cc
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+/*
+ Copyright (C) 2006 Paul Davis
+ By Dave Robillard, 2006
+
+ 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+#include <pbd/error.h>
+#include <sigc++/retype.h>
+#include <sigc++/retype_return.h>
+#include <sigc++/bind.h>
+
+#include <pbd/enumwriter.h>
+#include <midi++/events.h>
+
+#include <ardour/midi_track.h>
+#include <ardour/midi_diskstream.h>
+#include <ardour/session.h>
+#include <ardour/io_processor.h>
+#include <ardour/midi_region.h>
+#include <ardour/midi_source.h>
+#include <ardour/route_group_specialized.h>
+#include <ardour/processor.h>
+#include <ardour/midi_playlist.h>
+#include <ardour/panner.h>
+#include <ardour/utils.h>
+#include <ardour/buffer_set.h>
+#include <ardour/meter.h>
+
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+
+MidiTrack::MidiTrack (Session& sess, string name, Route::Flag flag, TrackMode mode)
+ : Track (sess, name, flag, mode, DataType::MIDI)
+ , _immediate_events(1024) // FIXME: size?
+ , _note_mode(Sustained)
+{
+ MidiDiskstream::Flag dflags = MidiDiskstream::Flag (0);
+
+ if (_flags & Hidden) {
+ dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Hidden);
+ } else {
+ dflags = MidiDiskstream::Flag (dflags | MidiDiskstream::Recordable);
+ }
+
+ assert(mode != Destructive);
+
+ boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, name, dflags));
+ _session.add_diskstream (ds);
+
+ set_diskstream (boost::dynamic_pointer_cast<MidiDiskstream> (ds));
+
+ _declickable = true;
+ _freeze_record.state = NoFreeze;
+ _saved_meter_point = _meter_point;
+ _mode = mode;
+
+ set_input_minimum(ChanCount(DataType::MIDI, 1));
+ set_input_maximum(ChanCount(DataType::MIDI, 1));
+ set_output_minimum(ChanCount(DataType::MIDI, 1));
+ set_output_maximum(ChanCount(DataType::MIDI, 1));
+
+ PortCountChanged(ChanCount(DataType::MIDI, 2)); /* EMIT SIGNAL */
+}
+
+MidiTrack::MidiTrack (Session& sess, const XMLNode& node)
+ : Track (sess, node)
+ , _immediate_events(1024) // FIXME: size?
+ , _note_mode(Sustained)
+{
+ _set_state(node, false);
+
+ set_input_minimum(ChanCount(DataType::MIDI, 1));
+ set_input_maximum(ChanCount(DataType::MIDI, 1));
+ set_output_minimum(ChanCount(DataType::MIDI, 1));
+ set_output_maximum(ChanCount(DataType::MIDI, 1));
+
+ PortCountChanged(ChanCount(DataType::MIDI, 2)); /* EMIT SIGNAL */
+}
+
+MidiTrack::~MidiTrack ()
+{
+}
+
+
+int
+MidiTrack::set_diskstream (boost::shared_ptr<MidiDiskstream> ds)
+{
+ _diskstream = ds;
+ _diskstream->set_io (*this);
+ _diskstream->set_destructive (_mode == Destructive);
+
+ _diskstream->set_record_enabled (false);
+ //_diskstream->monitor_input (false);
+
+ ic_connection.disconnect();
+ ic_connection = input_changed.connect (mem_fun (*_diskstream, &MidiDiskstream::handle_input_change));
+
+ DiskstreamChanged (); /* EMIT SIGNAL */
+
+ return 0;
+}
+
+int
+MidiTrack::use_diskstream (string name)
+{
+ boost::shared_ptr<MidiDiskstream> dstream;
+
+ if ((dstream = boost::dynamic_pointer_cast<MidiDiskstream>(_session.diskstream_by_name (name))) == 0) {
+ error << string_compose(_("MidiTrack: midi diskstream \"%1\" not known by session"), name) << endmsg;
+ return -1;
+ }
+
+ return set_diskstream (dstream);
+}
+
+int
+MidiTrack::use_diskstream (const PBD::ID& id)
+{
+ boost::shared_ptr<MidiDiskstream> dstream;
+
+ if ((dstream = boost::dynamic_pointer_cast<MidiDiskstream> (_session.diskstream_by_id (id))) == 0) {
+ error << string_compose(_("MidiTrack: midi diskstream \"%1\" not known by session"), id) << endmsg;
+ return -1;
+ }
+
+ return set_diskstream (dstream);
+}
+
+boost::shared_ptr<MidiDiskstream>
+MidiTrack::midi_diskstream() const
+{
+ return boost::dynamic_pointer_cast<MidiDiskstream>(_diskstream);
+}
+
+int
+MidiTrack::set_state (const XMLNode& node)
+{
+ return _set_state (node, true);
+}
+
+int
+MidiTrack::_set_state (const XMLNode& node, bool call_base)
+{
+ const XMLProperty *prop;
+ XMLNodeConstIterator iter;
+
+ if (Route::_set_state (node, call_base)) {
+ return -1;
+ }
+
+ // No destructive MIDI tracks (yet?)
+ _mode = Normal;
+
+ if ((prop = node.property (X_("note-mode"))) != 0) {
+ _note_mode = NoteMode (string_2_enum (prop->value(), _note_mode));
+ } else {
+ _note_mode = Sustained;
+ }
+
+ if ((prop = node.property ("diskstream-id")) == 0) {
+
+ /* some old sessions use the diskstream name rather than the ID */
+
+ if ((prop = node.property ("diskstream")) == 0) {
+ fatal << _("programming error: MidiTrack given state without diskstream!") << endmsg;
+ /*NOTREACHED*/
+ return -1;
+ }
+
+ if (use_diskstream (prop->value())) {
+ return -1;
+ }
+
+ } else {
+
+ PBD::ID id (prop->value());
+
+ if (use_diskstream (id)) {
+ return -1;
+ }
+ }
+
+
+ XMLNodeList nlist;
+ XMLNodeConstIterator niter;
+ XMLNode *child;
+
+ nlist = node.children();
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter){
+ child = *niter;
+
+ if (child->name() == X_("recenable")) {
+ _rec_enable_control->set_state (*child);
+ _session.add_controllable (_rec_enable_control);
+ }
+ }
+
+ pending_state = const_cast<XMLNode*> (&node);
+
+ _session.StateReady.connect (mem_fun (*this, &MidiTrack::set_state_part_two));
+
+ return 0;
+}
+
+XMLNode&
+MidiTrack::state(bool full_state)
+{
+ XMLNode& root (Route::state(full_state));
+ XMLNode* freeze_node;
+ char buf[64];
+
+ if (_freeze_record.playlist) {
+ XMLNode* inode;
+
+ freeze_node = new XMLNode (X_("freeze-info"));
+ freeze_node->add_property ("playlist", _freeze_record.playlist->name());
+ freeze_node->add_property ("state", enum_2_string (_freeze_record.state));
+
+ for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
+ inode = new XMLNode (X_("processor"));
+ (*i)->id.print (buf, sizeof(buf));
+ inode->add_property (X_("id"), buf);
+ inode->add_child_copy ((*i)->state);
+
+ freeze_node->add_child_nocopy (*inode);
+ }
+
+ root.add_child_nocopy (*freeze_node);
+ }
+
+ /* Alignment: act as a proxy for the diskstream */
+
+ XMLNode* align_node = new XMLNode (X_("alignment"));
+ AlignStyle as = _diskstream->alignment_style ();
+ align_node->add_property (X_("style"), enum_2_string (as));
+ root.add_child_nocopy (*align_node);
+
+ root.add_property (X_("note-mode"), enum_2_string (_note_mode));
+
+ /* we don't return diskstream state because we don't
+ own the diskstream exclusively. control of the diskstream
+ state is ceded to the Session, even if we create the
+ diskstream.
+ */
+
+ _diskstream->id().print (buf, sizeof(buf));
+ root.add_property ("diskstream-id", buf);
+
+ root.add_child_nocopy (_rec_enable_control->get_state());
+
+ return root;
+}
+
+void
+MidiTrack::set_state_part_two ()
+{
+ XMLNode* fnode;
+ XMLProperty* prop;
+ LocaleGuard lg (X_("POSIX"));
+
+ /* This is called after all session state has been restored but before
+ have been made ports and connections are established.
+ */
+
+ if (pending_state == 0) {
+ return;
+ }
+
+ if ((fnode = find_named_node (*pending_state, X_("freeze-info"))) != 0) {
+
+
+ _freeze_record.have_mementos = false;
+ _freeze_record.state = Frozen;
+
+ for (vector<FreezeRecordProcessorInfo*>::iterator i = _freeze_record.processor_info.begin(); i != _freeze_record.processor_info.end(); ++i) {
+ delete *i;
+ }
+ _freeze_record.processor_info.clear ();
+
+ if ((prop = fnode->property (X_("playlist"))) != 0) {
+ boost::shared_ptr<Playlist> pl = _session.playlist_by_name (prop->value());
+ if (pl) {
+ _freeze_record.playlist = boost::dynamic_pointer_cast<MidiPlaylist> (pl);
+ } else {
+ _freeze_record.playlist.reset();
+ _freeze_record.state = NoFreeze;
+ return;
+ }
+ }
+
+ if ((prop = fnode->property (X_("state"))) != 0) {
+ _freeze_record.state = FreezeState (string_2_enum (prop->value(), _freeze_record.state));
+ }
+
+ XMLNodeConstIterator citer;
+ XMLNodeList clist = fnode->children();
+
+ for (citer = clist.begin(); citer != clist.end(); ++citer) {
+ if ((*citer)->name() != X_("processor")) {
+ continue;
+ }
+
+ if ((prop = (*citer)->property (X_("id"))) == 0) {
+ continue;
+ }
+
+ FreezeRecordProcessorInfo* frii = new FreezeRecordProcessorInfo (*((*citer)->children().front()),
+ boost::shared_ptr<Processor>());
+ frii->id = prop->value ();
+ _freeze_record.processor_info.push_back (frii);
+ }
+ }
+
+ /* Alignment: act as a proxy for the diskstream */
+
+ if ((fnode = find_named_node (*pending_state, X_("alignment"))) != 0) {
+
+ if ((prop = fnode->property (X_("style"))) != 0) {
+
+ /* fix for older sessions from before EnumWriter */
+
+ string pstr;
+
+ if (prop->value() == "capture") {
+ pstr = "CaptureTime";
+ } else if (prop->value() == "existing") {
+ pstr = "ExistingMaterial";
+ } else {
+ pstr = prop->value();
+ }
+
+ AlignStyle as = AlignStyle (string_2_enum (pstr, as));
+ _diskstream->set_persistent_align_style (as);
+ }
+ }
+ return;
+}
+
+int
+MidiTrack::no_roll (nframes_t nframes, nframes_t start_frame, nframes_t end_frame, nframes_t offset,
+ bool session_state_changing, bool can_record, bool rec_monitors_input)
+{
+ if (n_outputs().n_midi() == 0) {
+ return 0;
+ }
+
+ if (!_active) {
+ silence (nframes, offset);
+ }
+
+ if (session_state_changing) {
+
+ /* XXX is this safe to do against transport state changes? */
+
+ passthru_silence (start_frame, end_frame, nframes, offset, 0, false);
+ return 0;
+ }
+
+ midi_diskstream()->check_record_status (start_frame, nframes, can_record);
+
+ bool send_silence;
+
+ if (_have_internal_generator) {
+ /* since the instrument has no input streams,
+ there is no reason to send any signal
+ into the route.
+ */
+ send_silence = true;
+ } else {
+
+ if (Config->get_auto_input()) {
+ if (Config->get_monitoring_model() == SoftwareMonitoring) {
+ send_silence = false;
+ } else {
+ send_silence = true;
+ }
+ } else {
+ if (_diskstream->record_enabled()) {
+ if (Config->get_monitoring_model() == SoftwareMonitoring) {
+ send_silence = false;
+ } else {
+ send_silence = true;
+ }
+ } else {
+ send_silence = true;
+ }
+ }
+ }
+
+ apply_gain_automation = false;
+
+ if (send_silence) {
+
+ /* if we're sending silence, but we want the meters to show levels for the signal,
+ meter right here.
+ */
+
+ if (_have_internal_generator) {
+ passthru_silence (start_frame, end_frame, nframes, offset, 0, true);
+ } else {
+ if (_meter_point == MeterInput) {
+ just_meter_input (start_frame, end_frame, nframes, offset);
+ }
+ passthru_silence (start_frame, end_frame, nframes, offset, 0, false);
+ }
+
+ } else {
+
+ /* we're sending signal, but we may still want to meter the input.
+ */
+
+ passthru (start_frame, end_frame, nframes, offset, 0, (_meter_point == MeterInput));
+ }
+
+ return 0;
+}
+
+int
+MidiTrack::roll (nframes_t nframes, nframes_t start_frame, nframes_t end_frame, nframes_t offset, int declick,
+ bool can_record, bool rec_monitors_input)
+{
+ int dret;
+ boost::shared_ptr<MidiDiskstream> diskstream = midi_diskstream();
+
+ {
+ Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
+ if (lm.locked()) {
+ // automation snapshot can also be called from the non-rt context
+ // and it uses the redirect list, so we take the lock out here
+ automation_snapshot (start_frame);
+ }
+ }
+
+ if (n_outputs().n_total() == 0 && _processors.empty()) {
+ return 0;
+ }
+
+ if (!_active) {
+ silence (nframes, offset);
+ return 0;
+ }
+
+ nframes_t transport_frame = _session.transport_frame();
+
+ if ((nframes = check_initial_delay (nframes, offset, transport_frame)) == 0) {
+ /* need to do this so that the diskstream sets its
+ playback distance to zero, thus causing diskstream::commit
+ to do nothing.
+ */
+ return diskstream->process (transport_frame, 0, 0, can_record, rec_monitors_input);
+ }
+
+ _silent = false;
+
+ if ((dret = diskstream->process (transport_frame, nframes, offset, can_record, rec_monitors_input)) != 0) {
+
+ silence (nframes, offset);
+
+ return dret;
+ }
+
+ /* special condition applies */
+
+ if (_meter_point == MeterInput) {
+ just_meter_input (start_frame, end_frame, nframes, offset);
+ }
+
+ if (diskstream->record_enabled() && !can_record && !Config->get_auto_input()) {
+
+ /* not actually recording, but we want to hear the input material anyway,
+ at least potentially (depending on monitoring options)
+ */
+
+ passthru (start_frame, end_frame, nframes, offset, 0, true);
+
+ } else {
+ /*
+ XXX is it true that the earlier test on n_outputs()
+ means that we can avoid checking it again here? i think
+ so, because changing the i/o configuration of an IO
+ requires holding the AudioEngine lock, which we hold
+ while in the process() tree.
+ */
+
+
+ /* copy the diskstream data to all output buffers */
+
+ //const size_t limit = n_process_buffers().n_audio();
+ BufferSet& bufs = _session.get_scratch_buffers (n_process_buffers());
+
+ diskstream->get_playback(bufs.get_midi(0), start_frame, end_frame);
+
+ process_output_buffers (bufs, start_frame, end_frame, nframes, offset,
+ (!_session.get_record_enabled() || !Config->get_do_not_record_plugins()), declick, (_meter_point != MeterInput));
+
+ }
+
+ return 0;
+}
+
+int
+MidiTrack::silent_roll (nframes_t nframes, nframes_t start_frame, nframes_t end_frame, nframes_t offset,
+ bool can_record, bool rec_monitors_input)
+{
+ if (n_outputs().n_midi() == 0 && _processors.empty()) {
+ return 0;
+ }
+
+ if (!_active) {
+ silence (nframes, offset);
+ return 0;
+ }
+
+ _silent = true;
+ apply_gain_automation = false;
+
+ silence (nframes, offset);
+
+ return midi_diskstream()->process (_session.transport_frame() + offset, nframes, offset, can_record, rec_monitors_input);
+}
+
+void
+MidiTrack::process_output_buffers (BufferSet& bufs,
+ nframes_t start_frame, nframes_t end_frame,
+ nframes_t nframes, nframes_t offset, bool with_processors, int declick,
+ bool meter)
+{
+ /* There's no such thing as a MIDI bus for the time being.
+ * We'll do all the MIDI route work here for now, but the long-term goal is to have
+ * Route::process_output_buffers handle everything */
+
+ if (meter && (_meter_point == MeterInput || _meter_point == MeterPreFader)) {
+ _meter->run_in_place(bufs, start_frame, end_frame, nframes, offset);
+ }
+
+ // Run all processors
+ if (with_processors) {
+ Glib::RWLock::ReaderLock rm (_processor_lock, Glib::TRY_LOCK);
+ if (rm.locked()) {
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ (*i)->run_in_place (bufs, start_frame, end_frame, nframes, offset);
+ }
+ }
+ }
+
+ if (meter && (_meter_point == MeterPostFader)) {
+ _meter->run_in_place(bufs, start_frame, end_frame, nframes, offset);
+ }
+
+ // Main output stage
+ if (muted()) {
+ IO::silence(nframes, offset);
+ } else {
+
+ // Write 'automation' controllers (e.g. CC events from a UI slider)
+ write_controller_messages(bufs.get_midi(0), start_frame, end_frame, nframes, offset);
+
+ deliver_output(bufs, start_frame, end_frame, nframes, offset);
+ }
+}
+
+void
+MidiTrack::write_controller_messages(MidiBuffer& output_buf, nframes_t start_frame, nframes_t end_frame,
+ nframes_t nframes, nframes_t offset)
+{
+#if 0
+ BufferSet& mix_buffers = _session.get_mix_buffers(ChanCount(DataType::MIDI, 2));
+
+ /* FIXME: this could be more realtimey */
+
+ // Write immediate events (UI controls)
+ MidiBuffer& cc_buf = mix_buffers.get_midi(0);
+ cc_buf.silence(nframes, offset);
+
+ uint8_t buf[3]; // CC = 3 bytes
+ buf[0] = MIDI_CMD_CONTROL;
+ MIDI::Event ev(0, 3, buf, false);
+
+ // Write track controller automation
+ // This now lives in MidiModel. Any need for track automation like this?
+ // Relative Velocity?
+ if (_session.transport_rolling()) {
+ for (Controls::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
+ const boost::shared_ptr<AutomationList> list = (*i).second->list();
+
+ if ( (!list->automation_playback())
+ || (list->parameter().type() != MidiCCAutomation))
+ continue;
+
+ double start = start_frame;
+ double x, y;
+ while ((*i).second->list()->rt_safe_earliest_event(start, end_frame, x, y)) {
+ assert(x >= start_frame);
+ assert(x <= end_frame);
+
+ const nframes_t stamp = (nframes_t)floor(x - start_frame);
+ assert(stamp < nframes);
+
+ assert(y >= 0.0);
+ assert(y <= 127.0);
+
+ ev.time() = stamp;
+ ev.buffer()[1] = (uint8_t)list->parameter().id();
+ ev.buffer()[2] = (uint8_t)y;
+
+ cc_buf.push_back(ev);
+
+ start = x + 1; // FIXME? maybe?
+ }
+ }
+ }
+
+ /* FIXME: too much copying! */
+
+ // Merge cc buf into output
+ if (cc_buf.size() > 0) {
+
+ // Both CC and route, must merge
+ if (output_buf.size() > 0) {
+
+ MidiBuffer& mix_buf = mix_buffers.get_midi(1);
+ mix_buf.merge(output_buf, cc_buf);
+ output_buf.copy(mix_buf);
+
+ } else {
+ output_buf.copy(cc_buf);
+ }
+ }
+#endif
+
+ // Append immediate events (UI controls)
+ _immediate_events.read(output_buf, 0, 0, offset + nframes-1); // all stamps = 0
+}
+
+int
+MidiTrack::export_stuff (BufferSet& bufs, nframes_t nframes, nframes_t end_frame)
+{
+ return -1;
+}
+
+void
+MidiTrack::set_latency_delay (nframes_t longest_session_latency)
+{
+ Route::set_latency_delay (longest_session_latency);
+ _diskstream->set_roll_delay (_roll_delay);
+}
+
+void
+MidiTrack::bounce (InterThreadInfo& itt)
+{
+ throw;
+ //vector<MidiSource*> srcs;
+ //_session.write_one_midi_track (*this, 0, _session.current_end_frame(), false, srcs, itt);
+}
+
+
+void
+MidiTrack::bounce_range (nframes_t start, nframes_t end, InterThreadInfo& itt)
+{
+ throw;
+ //vector<MidiSource*> srcs;
+ //_session.write_one_midi_track (*this, start, end, false, srcs, itt);
+}
+
+void
+MidiTrack::freeze (InterThreadInfo& itt)
+{
+}
+
+void
+MidiTrack::unfreeze ()
+{
+ _freeze_record.state = UnFrozen;
+ FreezeChange (); /* EMIT SIGNAL */
+}
+
+void
+MidiTrack::set_note_mode (NoteMode m)
+{
+ cout << _name << " SET NOTE MODE " << m << endl;
+ _note_mode = m;
+ midi_diskstream()->set_note_mode(m);
+}
+
+void
+MidiTrack::midi_panic()
+{
+ for (uint8_t channel = 0; channel <= 0xF; channel++) {
+ uint8_t ev[3] = { MIDI_CMD_CONTROL | channel, MIDI_CTL_SUSTAIN, 0 };
+ write_immediate_event(3, ev);
+ ev[1] = MIDI_CTL_ALL_NOTES_OFF;
+ write_immediate_event(3, ev);
+ ev[1] = MIDI_CTL_RESET_CONTROLLERS;
+ write_immediate_event(3, ev);
+ }
+}
+
+/** \return true on success, false on failure (no buffer space left)
+ */
+bool
+MidiTrack::write_immediate_event(size_t size, const uint8_t* buf)
+{
+ printf("Write immediate event: ");
+ for (size_t i=0; i < size; ++i) {
+ printf("%X ", buf[i]);
+ }
+ printf("\n");
+ return (_immediate_events.write(0, size, buf) == size);
+}
+
+void
+MidiTrack::MidiControl::set_value(float val)
+{
+ assert(val >= _list->parameter().min());
+ assert(val <= _list->parameter().max());
+ size_t size = 3;
+
+ if ( ! _list->automation_playback()) {
+ uint8_t ev[3] = { _list->parameter().channel(), int(val), 0.0 };
+ switch(_list->parameter().type()) {
+ case MidiCCAutomation:
+ ev[0] += MIDI_CMD_CONTROL;
+ ev[1] = _list->parameter().id();
+ ev[2] = int(val);
+ break;
+
+ case MidiPgmChangeAutomation:
+ size = 2;
+ ev[0] += MIDI_CMD_PGM_CHANGE;
+ ev[1] = int(val);
+ break;
+
+ case MidiChannelAftertouchAutomation:
+ size = 2;
+ ev[0] += MIDI_CMD_CHANNEL_PRESSURE;
+ ev[1] = int(val);
+ break;
+
+ case MidiPitchBenderAutomation:
+ ev[0] += MIDI_CMD_BENDER;
+ ev[1] = 0x7F & int(val);
+ ev[2] = 0x7F & (int(val) >> 7);
+ break;
+
+ default:
+ assert(false);
+ }
+ _route->write_immediate_event(size, ev);
+ }
+
+ AutomationControl::set_value(val);
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-27 18:22:52 +0000