*/
#include <math.h>
-#include <jack/jack.h>
#include <boost/scoped_ptr.hpp>
-#include "pbd/epa.h"
-
#include "ardour/audioengine.h"
#include "ardour/types.h"
#include "ardour/jack_audiobackend.h"
+#include "ardour/jack_connection.h"
+#include "ardour/jack_portengine.h"
using namespace ARDOUR;
using std::string;
-#define GET_PRIVATE_JACK_POINTER(j) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return; }
-#define GET_PRIVATE_JACK_POINTER_RET(j,r) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return r; }
+#define GET_PRIVATE_JACK_POINTER(localvar) jack_client_t* localvar = _jack_connection->jack(); if (!(v)) { return; }
+#define GET_PRIVATE_JACK_POINTER_RET(localvar,r) jack_client_t* localvar = _jack_connection->jack(); if (!(v)) { return r; }
extern "C" {
+
/* functions looked up using dlopen-and-cousins, and so naming scope
* must be non-mangled.
*/
- AudioBackend* backend_factory (AudioEngine& ae)
+ AudioBackend* backend_factory (AudioEngine& ae, void* backend_data)
{
- JACKAudioBackend* ab = new JACKAudioBackend (ae);
+ JACKAudioBackend* ab = new JACKAudioBackend (ae, backend_data);
return ab;
}
+
+ PortEngine* portengine_factory (PortEngine& ae, void* backend_data)
+ {
+ JACKPortEngine* pe = new JACKPortEngine (ae, backend_data);
+ return pe;
+ }
+
+ int
+ instantiate (const std::string& arg1, const std::string& arg2, void** backend_data)
+ {
+ JackConnection *jc;
+ try {
+ jc = new JackConnection (arg1, arg2);
+ } catch {
+ return -1;
+ }
+
+ *backend_data = (void*) jc;
+ return 0;
+ }
+ int
+ deinstantiate (void* backend_data)
+ {
+ JackConnection* jc = static_cast<JackConnection*> (backend_data);
+ delete jc;
+ }
}
-JACKAudioBackend::JACKAudioBackend (AudioEngine& e)
+JACKAudioBackend::JACKAudioBackend (AudioEngine& e, void* jc)
: AudioBackend (e)
- , _jack (0)
+ , _jack_connection (jc)
, _target_sample_rate (48000)
, _target_buffer_size (1024)
, _target_sample_format (FloatingPoint)
void*
JACKAudioBackend::private_handle()
{
- return _jack;
+ return _jack_connection->jack()
}
bool
JACKAudioBackend::connected() const
{
- return (_jack != 0);
+ return (private_handle() != 0);
}
bool
JACKAudioBackend::is_realtime ()
{
- GET_PRIVATE_JACK_POINTER_RET (_jack,false);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack,false);
return jack_is_realtime (_priv_jack);
}
int
JACKAudioBackend::set_sample_rate (float sr)
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (sr == jack_get_sample_rate (_priv_jack)) {
return 0;
int
JACKAudioBackend::set_buffer_size (uint32_t nframes)
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (nframes == jack_get_buffer_size (_priv_jack)) {
return 0;
int
JACKAudioBackend::start ()
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (!_running) {
int
JACKAudioBackend::stop ()
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
{
Glib::Threads::Mutex::Lock lm (_process_lock);
int
JACKAudioBackend::pause ()
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (_priv_jack) {
jack_deactivate (_priv_jack);
int
JACKAudioBackend::freewheel (bool onoff)
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (onoff == _freewheeling) {
/* already doing what has been asked for */
ARDOUR::pframes_t
AudioEngine::frames_per_cycle () const
{
- GET_PRIVATE_JACK_POINTER_RET (_jack,0);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack,0);
+
if (_buffer_size == 0) {
- return jack_get_buffer_size (_jack);
+ return jack_get_buffer_size (_priv_jack);
} else {
return _buffer_size;
}
ARDOUR::framecnt_t
AudioEngine::frame_rate () const
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, 0);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
if (_frame_rate == 0) {
return (_frame_rate = jack_get_sample_rate (_priv_jack));
} else {
/*--- private support methods ---*/
-int
-JACKAudioBackend::connect_to_jack (string client_name, string session_uuid)
-{
- EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa ();
- boost::scoped_ptr<EnvironmentalProtectionAgency> current_epa;
- jack_status_t status;
-
- /* revert all environment settings back to whatever they were when ardour started
- */
-
- if (global_epa) {
- current_epa.reset (new EnvironmentalProtectionAgency(true)); /* will restore settings when we leave scope */
- global_epa->restore ();
- }
-
- jack_client_name = client_name; /* might be reset below */
-#ifdef HAVE_JACK_SESSION
- if (!session_uuid.empty())
- _jack = jack_client_open (jack_client_name.c_str(), JackSessionID, &status, session_uuid.c_str());
- else
-#endif
- _jack = jack_client_open (jack_client_name.c_str(), JackNullOption, &status, 0);
-
- if (_jack == NULL) {
- // error message is not useful here
- return -1;
- }
-
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
-
- if (status & JackNameNotUnique) {
- jack_client_name = jack_get_client_name (_priv_jack);
- }
-
- return 0;
-}
-
-int
-JACKAudioBackend::disconnect_from_jack ()
-{
-}
-
int
JACKAudioBackend::reconnect_to_jack ()
{
- if (_running) {
- disconnect_from_jack ();
+ if (_jack_connection->connected()) {
+ _jack_connection->close ();
/* XXX give jackd a chance */
Glib::usleep (250000);
}
- if (connect_to_jack (jack_client_name, "")) {
+ if (_jack_connection->open()) {
error << _("failed to connect to JACK") << endmsg;
return -1;
}
return -1;
}
- GET_PRIVATE_JACK_POINTER_RET (_jack,-1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack,-1);
MIDI::Manager::instance()->reestablish (_priv_jack);
void
JACKAudioBackend::transport_stop ()
{
- GET_PRIVATE_JACK_POINTER (_jack);
+ GET_PRIVATE_JACK_POINTER (_priv_jack);
jack_transport_stop (_priv_jack);
}
void
JACKAudioBackend::transport_start ()
{
- GET_PRIVATE_JACK_POINTER (_jack);
+ GET_PRIVATE_JACK_POINTER (_priv_jack);
jack_transport_start (_priv_jack);
}
void
JACKAudioBackend::transport_locate (framepos_t where)
{
- GET_PRIVATE_JACK_POINTER (_jack);
+ GET_PRIVATE_JACK_POINTER (_priv_jack);
jack_transport_locate (_priv_jack, where);
}
framepos_t
JACKAudioBackend::transport_frame () const
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, 0);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
return jack_get_current_transport_frame (_priv_jack);
}
JACKAudioBackend::TransportState
JACKAudioBackend::transport_state ()
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, ((TransportState) JackTransportStopped));
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, ((TransportState) JackTransportStopped));
jack_position_t pos;
return (TransportState) jack_transport_query (_priv_jack, &pos);
}
int
JACKAudioBackend::set_time_master (bool yn)
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
if (yn) {
return jack_set_timebase_callback (_priv_jack, 0, _jack_timebase_callback, this);
} else {
#ifdef HAVE_JACK_VIDEO_SUPPORT
- GET_PRIVATE_JACK_POINTER_RET (_jack, false);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
jack_position_t pos;
void
JACKAudioBackend::set_jack_callbacks ()
{
- GET_PRIVATE_JACK_POINTER (_jack);
-
- if (jack_on_info_shutdown) {
- jack_on_info_shutdown (_priv_jack, halted_info, this);
- } else {
- jack_on_shutdown (_priv_jack, halted, this);
- }
+ GET_PRIVATE_JACK_POINTER (_priv_jack);
jack_set_thread_init_callback (_priv_jack, _thread_init_callback, this);
jack_set_process_thread (_priv_jack, _process_thread, this);
return;
}
- GET_PRIVATE_JACK_POINTER (_jack);
+ GET_PRIVATE_JACK_POINTER (_priv_jack);
jack_port_t* jack_port_a = jack_port_by_id (_priv_jack, id_a);
jack_port_t* jack_port_b = jack_port_by_id (_priv_jack, id_b);
int
JACKAudioBackend::create_process_thread (boost::function<void()> f, pthread_t* thread, size_t stacksize)
{
- GET_PRIVATE_JACK_POINTER_RET (_jack, 0);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
ThreadData* td = new ThreadData (this, f, stacksize);
if (jack_client_create_thread (_priv_jack, thread, jack_client_real_time_priority (_priv_jack),
_main_thread = new ProcessThread;
while (1) {
- GET_PRIVATE_JACK_POINTER_RET(_jack,0);
+ GET_PRIVATE_JACK_POINTER_RET(_priv_jack,0);
pframes_t nframes = jack_cycle_wait (_priv_jack);
return 0;
}
- GET_PRIVATE_JACK_POINTER_RET (_jack, 1);
+ GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 1);
_current_buffer_size = nframes;
_current_usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0);
--- /dev/null
+/*
+ Copyright (C) 2013 Paul 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.
+
+*/
+
+#include <boost/scoped_ptr.hpp>
+#include <jack/session.h>
+
+#include "pbd/epa.h"
+
+#include "ardour/jack_connection.h"
+
+#define GET_PRIVATE_JACK_POINTER(j) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return; }
+#define GET_PRIVATE_JACK_POINTER_RET(j,r) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return r; }
+
+using namespace ARDOUR;
+using namespace PBD;
+
+static void jack_halted_callback (void* arg)
+{
+ JackConnection* jc = static_cast<JackConnection*> (arg);
+ jc->halted_callback ();
+}
+
+static void jack_halted_info_callback (jack_status_t code, const char* reason, void* arg)
+{
+ JackConnection* jc = static_cast<JackConnection*> (arg);
+ jc->halted_info_callback (code, reason);
+}
+
+
+JackConnection::JackConnection (const std::string& arg1, const std::string& arg2)
+ : _jack (0)
+ , client_name (arg1)
+ , session_uuid (arg2)
+{
+}
+
+JackConnection::~JackConnection ()
+{
+ close ();
+}
+
+int
+JackConnection::open ()
+{
+ EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa ();
+ boost::scoped_ptr<EnvironmentalProtectionAgency> current_epa;
+ jack_status_t status;
+
+ /* revert all environment settings back to whatever they were when ardour started
+ */
+
+ if (global_epa) {
+ current_epa.reset (new EnvironmentalProtectionAgency(true)); /* will restore settings when we leave scope */
+ global_epa->restore ();
+ }
+
+ if ((_jack = jack_client_open (client_name.c_str(), JackSessionID, &status, session_uuid.c_str())) == 0) {
+ return -1;
+ }
+
+ if (status & JackNameNotUnique) {
+ client_name = jack_get_client_name (_jack);
+ }
+
+ /* attach halted handler */
+
+ if (jack_on_info_shutdown) {
+ jack_on_info_shutdown (_jack, jack_halted_info_callback, this);
+ } else {
+ jack_on_shutdown (_jack, jack_halted_callback, this);
+ }
+
+ return 0;
+}
+
+int
+JackConnection::close ()
+{
+ GET_PRIVATE_JACK_POINTER_RET (_jack, -1);
+
+ if (_priv_jack) {
+ return jack_client_close (_priv_jack);
+ }
+
+ return 0;
+}
+
+void
+JackConnection::halted_callback ()
+{
+ _jack = 0;
+ Disconnected ("");
+}
+
+void
+JackConnection::halted_info_callback (jack_status_t /*status*/, const char* reason)
+{
+ _jack = 0;
+ Disconnected (reason);
+}
+
+