major redesign of MIDI port heirarchy and management

basic, very flaky functionality is back. program unstable at present
This commit is contained in:
Paul Davis 2013-08-07 22:21:36 -04:00
parent 616f2a0370
commit 83a0c30c24
6 changed files with 183 additions and 868 deletions

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/*
Copyright (C) 1998 Paul Barton-Davis
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.
*/
#ifndef __midiport_manager_h__
#define __midiport_manager_h__
#include <list>
#include <string>
#include "pbd/rcu.h"
#include "midi++/types.h"
#include "midi++/port.h"
#include "ardour/types.h"
namespace ARDOUR {
class MidiPort;
class Port;
class MidiPortManager {
public:
MidiPortManager();
virtual ~MidiPortManager ();
MidiPort* add_port (MidiPort *);
void remove_port (MidiPort *);
MidiPort* port (const std::string&);
/* Ports used for control. These are read/written to outside of the
* process callback (asynchronously with respect to when data
* actually arrives).
*
* More detail: we do actually read/write data for these ports
* inside the process callback, but incoming data is only parsed
* and outgoing data is only generated *outside* the process
* callback.
*/
MIDI::Port* midi_input_port () { return _midi_input_port; }
MIDI::Port* midi_output_port () { return _midi_output_port; }
/* Ports used for synchronization. These have their I/O handled inside the
* process callback.
*/
boost::shared_ptr<MidiPort> mtc_input_port() const { return _mtc_input_port; }
boost::shared_ptr<MidiPort> mtc_output_port() const { return _mtc_output_port; }
boost::shared_ptr<MidiPort> midi_clock_input_port() const { return _midi_clock_input_port; }
boost::shared_ptr<MidiPort> midi_clock_output_port() const { return _midi_clock_output_port; }
void set_port_states (std::list<XMLNode*>);
PBD::Signal0<void> PortsChanged;
protected:
/* asynchronously handled ports: MIDI::Port */
MIDI::Port* _midi_input_port;
MIDI::Port* _midi_output_port;
boost::shared_ptr<Port> _midi_in;
boost::shared_ptr<Port> _midi_out;
/* synchronously handled ports: ARDOUR::MidiPort */
boost::shared_ptr<MidiPort> _mtc_input_port;
boost::shared_ptr<MidiPort> _mtc_output_port;
boost::shared_ptr<MidiPort> _midi_clock_input_port;
boost::shared_ptr<MidiPort> _midi_clock_output_port;
void create_ports ();
};
} // namespace MIDI
#endif // __midi_port_manager_h__

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/*
Copyright (C) 1998-99 Paul Barton-Davis
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.
$Id$
*/
#include "ardour/audioengine.h"
#include "ardour/async_midi_port.h"
#include "ardour/midiport_manager.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace std;
using namespace MIDI;
using namespace PBD;
MidiPortManager::MidiPortManager ()
{
}
MidiPortManager::~MidiPortManager ()
{
if (_midi_in) {
AudioEngine::instance()->unregister_port (_midi_in);
}
if (_midi_in) {
AudioEngine::instance()->unregister_port (_midi_in);
}
if (_mtc_input_port) {
AudioEngine::instance()->unregister_port (_mtc_input_port);
}
if (_mtc_output_port) {
AudioEngine::instance()->unregister_port (_mtc_output_port);
}
if (_midi_clock_input_port) {
AudioEngine::instance()->unregister_port (_midi_clock_input_port);
}
if (_midi_clock_output_port) {
AudioEngine::instance()->unregister_port (_midi_clock_output_port);
}
}
MidiPort*
MidiPortManager::port (string const & n)
{
boost::shared_ptr<MidiPort> mp = boost::dynamic_pointer_cast<MidiPort> (AudioEngine::instance()->get_port_by_name (n));
return mp.get();
}
void
MidiPortManager::create_ports ()
{
_midi_in = AudioEngine::instance()->register_input_port (DataType::MIDI, _("MIDI control in"), true);
_midi_out = AudioEngine::instance()->register_output_port (DataType::MIDI, _("MIDI control out"), true);
_midi_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_midi_in).get();
_midi_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(_midi_out).get();
}
void
MidiPortManager::set_port_states (list<XMLNode*> s)
{
PortManager::PortList pl;
AudioEngine::instance()->get_ports (DataType::MIDI, pl);
for (list<XMLNode*>::iterator i = s.begin(); i != s.end(); ++i) {
for (PortManager::PortList::const_iterator j = pl.begin(); j != pl.end(); ++j) {
// (*j)->set_state (**i);
}
}
}

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/*
Copyright (C) 1998 Paul Barton-Davis
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.
$Id$
*/
#include <iostream>
#include <cstdio>
#include <fcntl.h>
#include <errno.h>
#include "pbd/xml++.h"
#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/convert.h"
#include "pbd/strsplit.h"
#include "pbd/stacktrace.h"
#include "midi++/types.h"
#include "midi++/jack_midi_port.h"
#include "midi++/channel.h"
using namespace MIDI;
using namespace std;
using namespace PBD;
namespace Evoral {
template class EventRingBuffer<timestamp_t>;
}
pthread_t JackMIDIPort::_process_thread;
Signal0<void> JackMIDIPort::EngineHalted;
Signal0<void> JackMIDIPort::MakeConnections;
JackMIDIPort::JackMIDIPort (string const & name, Flags flags, ARDOUR::PortEngine& pengine)
: Port (name, flags)
, _port_engine (pengine)
, _port_handle (0)
, _currently_in_cycle (false)
, _nframes_this_cycle (0)
, _last_write_timestamp (0)
, output_fifo (512)
, input_fifo (1024)
, xthread (true)
{
init (name, flags);
}
JackMIDIPort::JackMIDIPort (const XMLNode& node, ARDOUR::PortEngine& pengine)
: Port (node)
, _port_engine (pengine)
, _port_handle (0)
, _currently_in_cycle (false)
, _nframes_this_cycle (0)
, _last_write_timestamp (0)
, output_fifo (512)
, input_fifo (1024)
, xthread (true)
{
Descriptor desc (node);
init (desc.tag, desc.flags);
set_state (node);
}
void
JackMIDIPort::init (const string& /*name*/, Flags /*flags*/)
{
if (!create_port ()) {
_ok = true;
}
MakeConnections.connect_same_thread (connect_connection, boost::bind (&JackMIDIPort::make_connections, this));
EngineHalted.connect_same_thread (halt_connection, boost::bind (&JackMIDIPort::engine_halted, this));
}
JackMIDIPort::~JackMIDIPort ()
{
if (_port_handle) {
_port_engine.unregister_port (_port_handle);
_port_handle = 0;
}
}
void
JackMIDIPort::parse (framecnt_t timestamp)
{
byte buf[512];
/* NOTE: parsing is done (if at all) by initiating a read from
the port. Each port implementation calls on the parser
once it has data ready.
*/
_parser->set_timestamp (timestamp);
while (1) {
// cerr << "+++ READ ON " << name() << endl;
int nread = read (buf, sizeof (buf));
// cerr << "-- READ (" << nread << " ON " << name() << endl;
if (nread > 0) {
if ((size_t) nread < sizeof (buf)) {
break;
} else {
continue;
}
} else if (nread == 0) {
break;
} else if (errno == EAGAIN) {
break;
} else {
fatal << "Error reading from MIDI port " << name() << endmsg;
/*NOTREACHED*/
}
}
}
void
JackMIDIPort::cycle_start (pframes_t nframes)
{
assert (_port_handle);
_currently_in_cycle = true;
_nframes_this_cycle = nframes;
assert(_nframes_this_cycle == nframes);
if (sends_output()) {
void *buffer = _port_engine.get_buffer (_port_handle, nframes);
jack_midi_clear_buffer (buffer);
flush (buffer);
}
if (receives_input()) {
void* buffer = _port_engine.get_buffer (_port_handle, nframes);
const pframes_t event_count = _port_engine.get_midi_event_count (buffer);
pframes_t time;
size_t size;
uint8_t* buf;
timestamp_t cycle_start_frame = _port_engine.sample_time_at_cycle_start ();
for (pframes_t i = 0; i < event_count; ++i) {
_port_engine.midi_event_get (time, size, &buf, buffer, i);
input_fifo.write (cycle_start_frame + time, (Evoral::EventType) 0, size, buf);
}
if (event_count) {
xthread.wakeup ();
}
}
}
void
JackMIDIPort::cycle_end ()
{
if (sends_output()) {
flush (_port_engine.get_buffer (_port_handle, _nframes_this_cycle));
}
_currently_in_cycle = false;
_nframes_this_cycle = 0;
}
void
JackMIDIPort::engine_halted ()
{
_port_handle = 0;
}
void
JackMIDIPort::drain (int check_interval_usecs)
{
RingBuffer< Evoral::Event<double> >::rw_vector vec = { { 0, 0 }, { 0, 0} };
if (is_process_thread()) {
error << "Process thread called MIDI::JackMIDIPort::drain() - this cannot work" << endmsg;
return;
}
while (1) {
output_fifo.get_write_vector (&vec);
if (vec.len[0] + vec.len[1] >= output_fifo.bufsize() - 1) {
break;
}
usleep (check_interval_usecs);
}
}
int
JackMIDIPort::write (const byte * msg, size_t msglen, timestamp_t timestamp)
{
int ret = 0;
if (!_port_handle) {
/* poof ! make it just vanish into thin air, since we are no
longer connected to JACK.
*/
return msglen;
}
if (!sends_output()) {
return ret;
}
if (!is_process_thread()) {
Glib::Threads::Mutex::Lock lm (output_fifo_lock);
RingBuffer< Evoral::Event<double> >::rw_vector vec = { { 0, 0 }, { 0, 0} };
output_fifo.get_write_vector (&vec);
if (vec.len[0] + vec.len[1] < 1) {
error << "no space in FIFO for non-process thread MIDI write" << endmsg;
return 0;
}
if (vec.len[0]) {
if (!vec.buf[0]->owns_buffer()) {
vec.buf[0]->set_buffer (0, 0, true);
}
vec.buf[0]->set (msg, msglen, timestamp);
} else {
if (!vec.buf[1]->owns_buffer()) {
vec.buf[1]->set_buffer (0, 0, true);
}
vec.buf[1]->set (msg, msglen, timestamp);
}
output_fifo.increment_write_idx (1);
ret = msglen;
} else {
if (timestamp >= _nframes_this_cycle) {
std::cerr << "attempting to write MIDI event of " << msglen << " bytes at time "
<< timestamp << " of " << _nframes_this_cycle
<< " (this will not work - needs a code fix)"
<< std::endl;
}
if (_currently_in_cycle) {
if (timestamp == 0) {
timestamp = _last_write_timestamp;
}
if ((ret = _port_engine.midi_event_put (_port_engine.get_buffer (_port_handle, _nframes_this_cycle),
timestamp, msg, msglen)) == 0) {
ret = msglen;
_last_write_timestamp = timestamp;
} else {
cerr << "write of " << msglen << " @ " << timestamp << " failed, port holds "
<< _port_engine.get_midi_event_count (_port_engine.get_buffer (_port_handle, _nframes_this_cycle))
<< " port is " << _port_handle
<< " ntf = " << _nframes_this_cycle
<< " buf = " << _port_engine.get_buffer (_port_handle, _nframes_this_cycle)
<< " ret = " << ret
<< endl;
PBD::stacktrace (cerr, 20);
ret = 0;
}
} else {
cerr << "write to JACK midi port failed: not currently in a process cycle." << endl;
PBD::stacktrace (cerr, 20);
}
}
if (ret > 0 && _parser) {
// ardour doesn't care about this and neither should your app, probably
// output_parser->raw_preparse (*output_parser, msg, ret);
for (int i = 0; i < ret; i++) {
_parser->scanner (msg[i]);
}
// ardour doesn't care about this and neither should your app, probably
// output_parser->raw_postparse (*output_parser, msg, ret);
}
return ret;
}
void
JackMIDIPort::flush (void* port_buffer)
{
RingBuffer< Evoral::Event<double> >::rw_vector vec = { { 0, 0 }, { 0, 0 } };
size_t written;
output_fifo.get_read_vector (&vec);
if (vec.len[0] + vec.len[1]) {
// cerr << "Flush " << vec.len[0] + vec.len[1] << " events from non-process FIFO\n";
}
if (vec.len[0]) {
Evoral::Event<double>* evp = vec.buf[0];
for (size_t n = 0; n < vec.len[0]; ++n, ++evp) {
_port_engine.midi_event_put (port_buffer, (timestamp_t) evp->time(), evp->buffer(), evp->size());
}
}
if (vec.len[1]) {
Evoral::Event<double>* evp = vec.buf[1];
for (size_t n = 0; n < vec.len[1]; ++n, ++evp) {
_port_engine.midi_event_put (port_buffer, (timestamp_t) evp->time(), evp->buffer(), evp->size());
}
}
if ((written = vec.len[0] + vec.len[1]) != 0) {
output_fifo.increment_read_idx (written);
}
}
int
JackMIDIPort::read (byte *, size_t)
{
if (!receives_input()) {
return 0;
}
timestamp_t time;
Evoral::EventType type;
uint32_t size;
byte buffer[input_fifo.capacity()];
while (input_fifo.read (&time, &type, &size, buffer)) {
_parser->set_timestamp (time);
for (uint32_t i = 0; i < size; ++i) {
_parser->scanner (buffer[i]);
}
}
return 0;
}
int
JackMIDIPort::create_port ()
{
ARDOUR::PortFlags f = ARDOUR::PortFlags (0);
/* convert MIDI::Port::Flags to ARDOUR::PortFlags ... sigh */
if (_flags & IsInput) {
f = ARDOUR::PortFlags (f | ARDOUR::IsInput);
}
if (_flags & IsOutput) {
f = ARDOUR::PortFlags (f | ARDOUR::IsOutput);
}
_port_handle = _port_engine.register_port (_tagname, ARDOUR::DataType::MIDI, f);
return _port_handle == 0 ? -1 : 0;
}
XMLNode&
JackMIDIPort::get_state () const
{
XMLNode& root = Port::get_state ();
#if 0
byte device_inquiry[6];
device_inquiry[0] = 0xf0;
device_inquiry[0] = 0x7e;
device_inquiry[0] = 0x7f;
device_inquiry[0] = 0x06;
device_inquiry[0] = 0x02;
device_inquiry[0] = 0xf7;
write (device_inquiry, sizeof (device_inquiry), 0);
#endif
if (_port_handle) {
vector<string> connections;
_port_engine.get_connections (_port_handle, connections);
string connection_string;
for (vector<string>::iterator i = connections.begin(); i != connections.end(); ++i) {
if (i != connections.begin()) {
connection_string += ',';
}
connection_string += *i;
}
if (!connection_string.empty()) {
root.add_property ("connections", connection_string);
}
} else {
if (!_connections.empty()) {
root.add_property ("connections", _connections);
}
}
return root;
}
void
JackMIDIPort::set_state (const XMLNode& node)
{
const XMLProperty* prop;
if ((prop = node.property ("tag")) == 0 || prop->value() != _tagname) {
return;
}
Port::set_state (node);
if ((prop = node.property ("connections")) != 0) {
_connections = prop->value ();
}
}
void
JackMIDIPort::make_connections ()
{
if (!_connections.empty()) {
vector<string> ports;
split (_connections, ports, ',');
for (vector<string>::iterator x = ports.begin(); x != ports.end(); ++x) {
_port_engine.connect (_port_handle, *x);
/* ignore failures */
}
}
connect_connection.disconnect ();
}
void
JackMIDIPort::set_process_thread (pthread_t thr)
{
_process_thread = thr;
}
bool
JackMIDIPort::is_process_thread()
{
return (pthread_self() == _process_thread);
}
void
JackMIDIPort::reestablish ()
{
int const r = create_port ();
if (r) {
PBD::error << "could not reregister ports for " << name() << endmsg;
}
}
void
JackMIDIPort::reconnect ()
{
make_connections ();
}

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/*
Copyright (C) 1998-99 Paul Barton-Davis
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.
$Id$
*/
#include <fcntl.h>
#include <glib.h>
#include "pbd/error.h"
#include "midi++/types.h"
#include "midi++/manager.h"
#include "midi++/channel.h"
#include "midi++/port.h"
#include "midi++/jack_midi_port.h"
#include "midi++/mmc.h"
using namespace std;
using namespace MIDI;
using namespace PBD;
Manager *Manager::theManager = 0;
Manager::Manager (ARDOUR::PortEngine& eng)
: _ports (new PortList)
{
_mmc = new MachineControl (this, eng);
_mtc_input_port = add_port (new MIDI::JackMIDIPort ("MTC in", Port::IsInput, eng));
_mtc_output_port = add_port (new MIDI::JackMIDIPort ("MTC out", Port::IsOutput, eng));
_midi_input_port = add_port (new MIDI::JackMIDIPort ("MIDI control in", Port::IsInput, eng));
_midi_output_port = add_port (new MIDI::JackMIDIPort ("MIDI control out", Port::IsOutput, eng));
_midi_clock_input_port = add_port (new MIDI::JackMIDIPort ("MIDI clock in", Port::IsInput, eng));
_midi_clock_output_port = add_port (new MIDI::JackMIDIPort ("MIDI clock out", Port::IsOutput, eng));
}
Manager::~Manager ()
{
delete _mmc;
/* This will delete our MTC etc. ports */
boost::shared_ptr<PortList> pr = _ports.reader ();
for (PortList::iterator p = pr->begin(); p != pr->end(); ++p) {
delete *p;
}
if (theManager == this) {
theManager = 0;
}
}
Port *
Manager::add_port (Port* p)
{
{
RCUWriter<PortList> writer (_ports);
boost::shared_ptr<PortList> pw = writer.get_copy ();
pw->push_back (p);
}
PortsChanged (); /* EMIT SIGNAL */
return p;
}
void
Manager::remove_port (Port* p)
{
{
RCUWriter<PortList> writer (_ports);
boost::shared_ptr<PortList> pw = writer.get_copy ();
pw->remove (p);
}
PortsChanged (); /* EMIT SIGNAL */
}
void
Manager::cycle_start (pframes_t nframes)
{
boost::shared_ptr<PortList> pr = _ports.reader ();
for (PortList::iterator p = pr->begin(); p != pr->end(); ++p) {
(*p)->cycle_start (nframes);
}
}
void
Manager::cycle_end()
{
boost::shared_ptr<PortList> pr = _ports.reader ();
for (PortList::iterator p = pr->begin(); p != pr->end(); ++p) {
(*p)->cycle_end ();
}
}
/** Re-register ports that disappear on JACK shutdown */
void
Manager::reestablish ()
{
boost::shared_ptr<PortList> pr = _ports.reader ();
for (PortList::const_iterator p = pr->begin(); p != pr->end(); ++p) {
JackMIDIPort* pp = dynamic_cast<JackMIDIPort*> (*p);
if (pp) {
pp->reestablish ();
}
}
}
/** Re-connect ports after a reestablish () */
void
Manager::reconnect ()
{
boost::shared_ptr<PortList> pr = _ports.reader ();
for (PortList::const_iterator p = pr->begin(); p != pr->end(); ++p) {
JackMIDIPort* pp = dynamic_cast<JackMIDIPort*> (*p);
if (pp) {
pp->reconnect ();
}
}
}
Port*
Manager::port (string const & n)
{
boost::shared_ptr<PortList> pr = _ports.reader ();
PortList::const_iterator p = pr->begin();
while (p != pr->end() && (*p)->name() != n) {
++p;
}
if (p == pr->end()) {
return 0;
}
return *p;
}
void
Manager::create (ARDOUR::PortEngine& eng)
{
assert (theManager == 0);
theManager = new Manager (eng);
}
void
Manager::set_port_states (list<XMLNode*> s)
{
boost::shared_ptr<PortList> pr = _ports.reader ();
for (list<XMLNode*>::iterator i = s.begin(); i != s.end(); ++i) {
for (PortList::const_iterator j = pr->begin(); j != pr->end(); ++j) {
(*j)->set_state (**i);
}
}
}
void
Manager::destroy ()
{
delete theManager;
theManager = 0;
}

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/*
Copyright (C) 1998-2010 Paul Barton-Davis
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.
*/
#ifndef __libmidi_port_h__
#define __libmidi_port_h__
#include <string>
#include <iostream>
#include "pbd/xml++.h"
#include "pbd/crossthread.h"
#include "pbd/signals.h"
#include "pbd/ringbuffer.h"
#include "evoral/Event.hpp"
#include "evoral/EventRingBuffer.hpp"
#include "midi++/types.h"
#include "midi++/parser.h"
#include "midi++/port.h"
#include "ardour/port_engine.h"
namespace MIDI {
class Channel;
class PortRequest;
class JackMIDIPort : public Port {
public:
JackMIDIPort (std::string const &, Port::Flags, ARDOUR::PortEngine&);
JackMIDIPort (const XMLNode&, ARDOUR::PortEngine&);
~JackMIDIPort ();
XMLNode& get_state () const;
void set_state (const XMLNode&);
void cycle_start (pframes_t nframes);
void cycle_end ();
void parse (framecnt_t timestamp);
int write (const byte *msg, size_t msglen, timestamp_t timestamp);
int read (byte *buf, size_t bufsize);
void drain (int check_interval_usecs);
int selectable () const { return xthread.selectable(); }
pframes_t nframes_this_cycle() const { return _nframes_this_cycle; }
void reestablish ();
void reconnect ();
static void set_process_thread (pthread_t);
static pthread_t get_process_thread () { return _process_thread; }
static bool is_process_thread();
static PBD::Signal0<void> MakeConnections;
static PBD::Signal0<void> EngineHalted;
private:
ARDOUR::PortEngine& _port_engine;
ARDOUR::PortEngine::PortHandle _port_handle;
bool _currently_in_cycle;
pframes_t _nframes_this_cycle;
timestamp_t _last_write_timestamp;
RingBuffer< Evoral::Event<double> > output_fifo;
Evoral::EventRingBuffer<timestamp_t> input_fifo;
Glib::Threads::Mutex output_fifo_lock;
CrossThreadChannel xthread;
int create_port ();
/** Channel used to signal to the MidiControlUI that input has arrived */
std::string _connections;
PBD::ScopedConnection connect_connection;
PBD::ScopedConnection halt_connection;
void flush (void* port_buffer);
void engine_halted ();
void make_connections ();
void init (std::string const &, Flags);
static pthread_t _process_thread;
};
} // namespace MIDI
#endif // __libmidi_port_h__

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@ -1,107 +0,0 @@
/*
Copyright (C) 1998 Paul Barton-Davis
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.
*/
#ifndef __midi_manager_h__
#define __midi_manager_h__
#include <list>
#include <string>
#include "pbd/rcu.h"
#include "midi++/types.h"
#include "midi++/port.h"
namespace ARDOUR {
class PortEngine;
}
namespace MIDI {
class MachineControl;
class Manager {
public:
~Manager ();
/** Signal the start of an audio cycle.
* This MUST be called before any reading/writing for this cycle.
* Realtime safe.
*/
void cycle_start (pframes_t nframes);
/** Signal the end of an audio cycle.
* This signifies that the cycle began with @ref cycle_start has ended.
* This MUST be called at the end of each cycle.
* Realtime safe.
*/
void cycle_end ();
MachineControl* mmc () const { return _mmc; }
Port *mtc_input_port() const { return _mtc_input_port; }
Port *mtc_output_port() const { return _mtc_output_port; }
Port *midi_input_port() const { return _midi_input_port; }
Port *midi_output_port() const { return _midi_output_port; }
Port *midi_clock_input_port() const { return _midi_clock_input_port; }
Port *midi_clock_output_port() const { return _midi_clock_output_port; }
Port* add_port (Port *);
void remove_port (Port *);
Port* port (std::string const &);
void set_port_states (std::list<XMLNode*>);
typedef std::list<Port *> PortList;
boost::shared_ptr<const PortList> get_midi_ports() const { return _ports.reader (); }
static void create (ARDOUR::PortEngine&);
static Manager *instance () {
return theManager;
}
static void destroy ();
void reestablish ();
void reconnect ();
PBD::Signal0<void> PortsChanged;
private:
/* This is a SINGLETON pattern */
Manager (ARDOUR::PortEngine&);
static Manager *theManager;
MIDI::MachineControl* _mmc;
MIDI::Port* _mtc_input_port;
MIDI::Port* _mtc_output_port;
MIDI::Port* _midi_input_port;
MIDI::Port* _midi_output_port;
MIDI::Port* _midi_clock_input_port;
MIDI::Port* _midi_clock_output_port;
SerializedRCUManager<PortList> _ports;
};
} // namespace MIDI
#endif // __midi_manager_h__