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livetrax/libs/backends/jack/jack_portengine.cc

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/*
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 <string.h>
#include <stdint.h>
#include "pbd/error.h"
#include "jack_audiobackend.h"
#include "jack_connection.h"
#include "ardour/port_manager.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using std::string;
using std::vector;
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#define GET_PRIVATE_JACK_POINTER(localvar) jack_client_t* localvar = _jack_connection->jack(); if (!(localvar)) { return; }
#define GET_PRIVATE_JACK_POINTER_RET(localvar,r) jack_client_t* localvar = _jack_connection->jack(); if (!(localvar)) { return r; }
static uint32_t
ardour_port_flags_to_jack_flags (PortFlags flags)
{
uint32_t jack_flags = 0;
if (flags & IsInput) {
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jack_flags |= JackPortIsInput;
}
if (flags & IsOutput) {
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jack_flags |= JackPortIsOutput;
}
if (flags & IsTerminal) {
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jack_flags |= JackPortIsTerminal;
}
if (flags & IsPhysical) {
jack_flags |= JackPortIsPhysical;
}
if (flags & CanMonitor) {
jack_flags |= JackPortCanMonitor;
}
return jack_flags;
}
static DataType
jack_port_type_to_ardour_data_type (const char* jack_type)
{
if (strcmp (jack_type, JACK_DEFAULT_AUDIO_TYPE) == 0) {
return DataType::AUDIO;
} else if (strcmp (jack_type, JACK_DEFAULT_MIDI_TYPE) == 0) {
return DataType::MIDI;
}
return DataType::NIL;
}
static const char*
ardour_data_type_to_jack_port_type (DataType d)
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{
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switch (d) {
case DataType::AUDIO:
return JACK_DEFAULT_AUDIO_TYPE;
case DataType::MIDI:
return JACK_DEFAULT_MIDI_TYPE;
}
return "";
}
void
JACKAudioBackend::when_connected_to_jack ()
{
/* register callbacks for stuff that is our responsibility */
jack_client_t* client = _jack_connection->jack();
if (!client) {
/* how could this happen? it could ... */
error << _("Already disconnected from JACK before PortEngine could register callbacks") << endmsg;
return;
}
jack_set_port_registration_callback (client, _registration_callback, this);
jack_set_port_connect_callback (client, _connect_callback, this);
jack_set_graph_order_callback (client, _graph_order_callback, this);
}
int
JACKAudioBackend::set_port_name (PortHandle port, const std::string& name)
{
return jack_port_set_name ((jack_port_t*) port, name.c_str());
}
string
JACKAudioBackend::get_port_name (PortHandle port) const
{
return jack_port_name ((jack_port_t*) port);
}
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int
JACKAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
{
#ifdef HAVE_JACK_METADATA // really everyone ought to have this by now.
int rv = -1;
char *cvalue = NULL;
char *ctype = NULL;
jack_uuid_t uuid = jack_port_uuid((jack_port_t*) port);
rv = jack_get_property(uuid, key.c_str(), &cvalue, &ctype);
if (0 == rv) {
value = cvalue;
type = ctype;
jack_free(cvalue);
jack_free(ctype);
}
return rv;
#else
return -1;
#endif
}
PortEngine::PortHandle
JACKAudioBackend:: get_port_by_name (const std::string& name) const
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
return (PortHandle) jack_port_by_name (_priv_jack, name.c_str());
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}
void
JACKAudioBackend::_registration_callback (jack_port_id_t /*id*/, int /*reg*/, void* arg)
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{
static_cast<JACKAudioBackend*> (arg)->manager.registration_callback ();
}
int
JACKAudioBackend::_graph_order_callback (void *arg)
{
return static_cast<JACKAudioBackend*> (arg)->manager.graph_order_callback ();
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}
void
JACKAudioBackend::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn, void* arg)
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{
static_cast<JACKAudioBackend*> (arg)->connect_callback (id_a, id_b, conn);
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}
void
JACKAudioBackend::connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn)
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{
if (manager.port_remove_in_progress()) {
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return;
}
GET_PRIVATE_JACK_POINTER (_priv_jack);
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jack_port_t* a = jack_port_by_id (_priv_jack, id_a);
jack_port_t* b = jack_port_by_id (_priv_jack, id_b);
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manager.connect_callback (jack_port_name (a), jack_port_name (b), conn == 0 ? false : true);
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}
bool
JACKAudioBackend::connected (PortHandle port, bool process_callback_safe)
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{
bool ret = false;
const char** ports;
if (process_callback_safe) {
ports = jack_port_get_connections ((jack_port_t*)port);
} else {
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
}
if (ports) {
ret = true;
}
jack_free (ports);
return ret;
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}
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bool
JACKAudioBackend::connected_to (PortHandle port, const std::string& other, bool process_callback_safe)
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{
bool ret = false;
const char** ports;
if (process_callback_safe) {
ports = jack_port_get_connections ((jack_port_t*)port);
} else {
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
}
if (ports) {
for (int i = 0; ports[i]; ++i) {
if (other == ports[i]) {
ret = true;
}
}
jack_free (ports);
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}
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return ret;
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}
bool
JACKAudioBackend::physically_connected (PortHandle p, bool process_callback_safe)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
jack_port_t* port = (jack_port_t*) p;
const char** ports;
if (process_callback_safe) {
ports = jack_port_get_connections ((jack_port_t*)port);
} else {
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
}
if (ports) {
for (int i = 0; ports[i]; ++i) {
jack_port_t* other = jack_port_by_name (_priv_jack, ports[i]);
if (other && (jack_port_flags (other) & JackPortIsPhysical)) {
return true;
}
}
jack_free (ports);
}
return false;
}
int
JACKAudioBackend::get_connections (PortHandle port, vector<string>& s, bool process_callback_safe)
{
const char** ports;
if (process_callback_safe) {
ports = jack_port_get_connections ((jack_port_t*)port);
} else {
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
}
if (ports) {
for (int i = 0; ports[i]; ++i) {
s.push_back (ports[i]);
}
jack_free (ports);
}
return s.size();
}
DataType
JACKAudioBackend::port_data_type (PortHandle p) const
{
return jack_port_type_to_ardour_data_type (jack_port_type ((jack_port_t*) p));
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}
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const string&
JACKAudioBackend::my_name() const
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{
return _jack_connection->client_name();
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}
bool
JACKAudioBackend::port_is_physical (PortHandle ph) const
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{
if (!ph) {
return false;
}
return jack_port_flags ((jack_port_t*) ph) & JackPortIsPhysical;
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}
int
JACKAudioBackend::get_ports (const string& port_name_pattern, DataType type, PortFlags flags, vector<string>& s) const
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{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack,0);
const char** ports = jack_get_ports (_priv_jack, port_name_pattern.c_str(),
ardour_data_type_to_jack_port_type (type),
ardour_port_flags_to_jack_flags (flags));
if (ports == 0) {
return 0;
}
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for (uint32_t i = 0; ports[i]; ++i) {
s.push_back (ports[i]);
}
jack_free (ports);
return s.size();
}
ChanCount
JACKAudioBackend::n_physical_inputs () const
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{
return n_physical (JackPortIsInput);
}
ChanCount
JACKAudioBackend::n_physical_outputs () const
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{
return n_physical (JackPortIsOutput);
}
void
JACKAudioBackend::get_physical (DataType type, unsigned long flags, vector<string>& phy) const
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{
GET_PRIVATE_JACK_POINTER (_priv_jack);
const char ** ports;
if ((ports = jack_get_ports (_priv_jack, NULL, ardour_data_type_to_jack_port_type (type), JackPortIsPhysical | flags)) == 0) {
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return;
}
if (ports) {
for (uint32_t i = 0; ports[i]; ++i) {
if (strstr (ports[i], "Midi-Through")) {
continue;
}
phy.push_back (ports[i]);
}
jack_free (ports);
}
}
/** Get physical ports for which JackPortIsOutput is set; ie those that correspond to
* a physical input connector.
*/
void
JACKAudioBackend::get_physical_inputs (DataType type, vector<string>& ins)
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{
get_physical (type, JackPortIsOutput, ins);
}
/** Get physical ports for which JackPortIsInput is set; ie those that correspond to
* a physical output connector.
*/
void
JACKAudioBackend::get_physical_outputs (DataType type, vector<string>& outs)
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{
get_physical (type, JackPortIsInput, outs);
}
bool
JACKAudioBackend::can_monitor_input () const
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{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack,false);
const char ** ports;
if ((ports = jack_get_ports (_priv_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortCanMonitor)) == 0) {
return false;
}
jack_free (ports);
return true;
}
int
JACKAudioBackend::request_input_monitoring (PortHandle port, bool yn)
{
return jack_port_request_monitor ((jack_port_t*) port, yn);
}
int
JACKAudioBackend::ensure_input_monitoring (PortHandle port, bool yn)
{
return jack_port_ensure_monitor ((jack_port_t*) port, yn);
}
bool
JACKAudioBackend::monitoring_input (PortHandle port)
{
return jack_port_monitoring_input ((jack_port_t*) port);
}
PortEngine::PortHandle
JACKAudioBackend::register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
return jack_port_register (_priv_jack, shortname.c_str(),
ardour_data_type_to_jack_port_type (type),
ardour_port_flags_to_jack_flags (flags),
0);
}
void
JACKAudioBackend::unregister_port (PortHandle port)
{
GET_PRIVATE_JACK_POINTER (_priv_jack);
(void) jack_port_unregister (_priv_jack, (jack_port_t*) port);
}
int
JACKAudioBackend::connect (PortHandle port, const std::string& other)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
return jack_connect (_priv_jack, jack_port_name ((jack_port_t*) port), other.c_str());
}
int
JACKAudioBackend::connect (const std::string& src, const std::string& dst)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
int r = jack_connect (_priv_jack, src.c_str(), dst.c_str());
return r;
}
int
JACKAudioBackend::disconnect (PortHandle port, const std::string& other)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
return jack_disconnect (_priv_jack, jack_port_name ((jack_port_t*) port), other.c_str());
}
int
JACKAudioBackend::disconnect (const std::string& src, const std::string& dst)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
return jack_disconnect (_priv_jack, src.c_str(), dst.c_str());
}
int
JACKAudioBackend::disconnect_all (PortHandle port)
{
GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
return jack_port_disconnect (_priv_jack, (jack_port_t*) port);
}
int
JACKAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index)
{
jack_midi_event_t ev;
int ret;
if ((ret = jack_midi_event_get (&ev, port_buffer, event_index)) == 0) {
timestamp = ev.time;
size = ev.size;
*buf = ev.buffer;
}
return ret;
}
int
JACKAudioBackend::midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size)
{
return jack_midi_event_write (port_buffer, timestamp, buffer, size);
}
uint32_t
JACKAudioBackend::get_midi_event_count (void* port_buffer)
{
return jack_midi_get_event_count (port_buffer);
}
void
JACKAudioBackend::midi_clear (void* port_buffer)
{
jack_midi_clear_buffer (port_buffer);
}
void
JACKAudioBackend::set_latency_range (PortHandle port, bool for_playback, LatencyRange r)
{
jack_latency_range_t range;
range.min = r.min;
range.max = r.max;
jack_port_set_latency_range ((jack_port_t*) port, for_playback ? JackPlaybackLatency : JackCaptureLatency, &range);
}
LatencyRange
JACKAudioBackend::get_latency_range (PortHandle port, bool for_playback)
{
jack_latency_range_t range;
LatencyRange ret;
jack_port_get_latency_range ((jack_port_t*) port, for_playback ? JackPlaybackLatency : JackCaptureLatency, &range);
ret.min = range.min;
ret.max = range.max;
return ret;
}
void*
JACKAudioBackend::get_buffer (PortHandle port, pframes_t nframes)
{
return jack_port_get_buffer ((jack_port_t*) port, nframes);
}
uint32_t
JACKAudioBackend::port_name_size() const
{
return jack_port_name_size ();
}