Robin Gareus
79330f909e
If connecting ports using the port-engine fails, ardour forgets the connection. Internal backends only produced an error if a port was already connected, when using ::connect (handle, other), but ignore already existing connection when using port-names. Various ports are connected twice when the engine connects at session load. This worked fine for as long as the engine was never stopped (saving the session asks the port-engine), but failed when the engine went away and internal representation is used.
728 lines
18 KiB
C++
728 lines
18 KiB
C++
/*
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* Copyright (C) 2013-2018 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include <stdint.h>
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#include "pbd/error.h"
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#include "jack_audiobackend.h"
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#include "jack_connection.h"
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#include "ardour/port_manager.h"
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#include "pbd/i18n.h"
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using namespace ARDOUR;
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using namespace PBD;
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using std::string;
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using std::vector;
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#define GET_PRIVATE_JACK_POINTER(localvar) jack_client_t* localvar = _jack_connection->jack(); if (!(localvar)) { return; }
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#define GET_PRIVATE_JACK_POINTER_RET(localvar,r) jack_client_t* localvar = _jack_connection->jack(); if (!(localvar)) { return r; }
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static uint32_t
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ardour_port_flags_to_jack_flags (PortFlags flags)
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{
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uint32_t jack_flags = 0;
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if (flags & IsInput) {
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jack_flags |= JackPortIsInput;
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}
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if (flags & IsOutput) {
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jack_flags |= JackPortIsOutput;
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}
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if (flags & IsTerminal) {
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jack_flags |= JackPortIsTerminal;
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}
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if (flags & IsPhysical) {
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jack_flags |= JackPortIsPhysical;
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}
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if (flags & CanMonitor) {
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jack_flags |= JackPortCanMonitor;
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}
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return jack_flags;
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}
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static DataType
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jack_port_type_to_ardour_data_type (const char* jack_type)
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{
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if (strcmp (jack_type, JACK_DEFAULT_AUDIO_TYPE) == 0) {
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return DataType::AUDIO;
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} else if (strcmp (jack_type, JACK_DEFAULT_MIDI_TYPE) == 0) {
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return DataType::MIDI;
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}
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return DataType::NIL;
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}
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static const char*
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ardour_data_type_to_jack_port_type (DataType d)
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{
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switch (d) {
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case DataType::AUDIO:
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return JACK_DEFAULT_AUDIO_TYPE;
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case DataType::MIDI:
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return JACK_DEFAULT_MIDI_TYPE;
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}
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return "";
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}
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void
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JACKAudioBackend::when_connected_to_jack ()
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{
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/* register callbacks for stuff that is our responsibility */
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jack_client_t* client = _jack_connection->jack();
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if (!client) {
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/* how could this happen? it could ... */
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error << _("Already disconnected from JACK before PortEngine could register callbacks") << endmsg;
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return;
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}
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jack_set_port_registration_callback (client, _registration_callback, this);
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jack_set_port_connect_callback (client, _connect_callback, this);
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jack_set_graph_order_callback (client, _graph_order_callback, this);
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}
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int
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JACKAudioBackend::set_port_name (PortHandle port, const std::string& name)
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{
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#if HAVE_JACK_PORT_RENAME
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jack_client_t* client = _jack_connection->jack();
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if (client) {
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return jack_port_rename (client, boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, name.c_str());
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} else {
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return -1;
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}
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#else
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return jack_port_set_name (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, name.c_str());
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#endif
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}
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string
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JACKAudioBackend::get_port_name (PortHandle port) const
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{
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return jack_port_name (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr);
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}
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PortFlags
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JACKAudioBackend::get_port_flags (PortHandle port) const
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{
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return PortFlags (jack_port_flags (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr));
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}
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int
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JACKAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
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{
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#ifdef HAVE_JACK_METADATA // really everyone ought to have this by now.
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int rv = -1;
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char *cvalue = NULL;
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char *ctype = NULL;
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jack_uuid_t uuid = jack_port_uuid (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr);
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rv = jack_get_property (uuid, key.c_str(), &cvalue, &ctype);
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if (0 == rv && cvalue) {
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value = cvalue;
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if (ctype) {
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type = ctype;
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}
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} else {
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rv = -1;
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}
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jack_free(cvalue);
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jack_free(ctype);
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return rv;
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#else
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return -1;
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#endif
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}
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int
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JACKAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
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{
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#ifdef HAVE_JACK_METADATA // really everyone ought to have this by now.
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int rv = -1;
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jack_client_t* client = _jack_connection->jack();
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jack_uuid_t uuid = jack_port_uuid (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr);
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return jack_set_property(client, uuid, key.c_str(), value.c_str(), type.c_str());
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return rv;
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#else
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return -1;
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#endif
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}
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PortEngine::PortPtr
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JACKAudioBackend::get_port_by_name (const std::string& name) const
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{
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{
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boost::shared_ptr<JackPorts> ports = _jack_ports.reader ();
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JackPorts::iterator p = ports->find (name);
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if (p != ports->end()) {
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return p->second;
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}
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}
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/* Port not known to us yet, so look it up via JACK (slow) */
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, PortEngine::PortPtr());
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jack_port_t * jack_port = jack_port_by_name (_priv_jack, name.c_str());
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if (!jack_port) {
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/* No such port ... return nothering */
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return PortEngine::PortPtr();
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}
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boost::shared_ptr<JackPort> jp;
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{
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RCUWriter<JackPorts> writer (_jack_ports);
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boost::shared_ptr<JackPorts> ports = writer.get_copy();
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jp.reset (new JackPort (jack_port));
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ports->insert (std::make_pair (name, jp));
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}
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_jack_ports.flush ();
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return jp;
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}
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void
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JACKAudioBackend::_registration_callback (jack_port_id_t id, int reg, void* arg)
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{
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/* we don't use a virtual method for the registration callback, because
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JACK is the only backend that delivers the arguments shown above. So
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call our own JACK-centric registration callback, then the generic
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one.
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*/
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static_cast<JACKAudioBackend*> (arg)->jack_registration_callback (id, reg);
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static_cast<JACKAudioBackend*> (arg)->manager.registration_callback ();
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static_cast<JACKAudioBackend*> (arg)->engine.latency_callback (false);
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static_cast<JACKAudioBackend*> (arg)->engine.latency_callback (true);
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}
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void
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JACKAudioBackend::jack_registration_callback (jack_port_id_t id, int reg)
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{
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GET_PRIVATE_JACK_POINTER (_priv_jack);
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jack_port_t* jack_port = jack_port_by_id (_priv_jack, id);
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if (!jack_port) {
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return;
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}
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/* We only need to care about ports that we do not register/unregister
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* ourselves. Our own ports will added/removed from _jack_ports at the
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* appropriate time.
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*
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* But for the input meters, we'll be looking up ports not created by
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* us, and they may also go away at arbitrary times too. We want to
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* make sure we can look up these ports by name only (in _jack_ports)
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* because jack_port_by_name() is unacceptably slow for RT contexts
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* (like run_input_meters()). So we catch these ports at registration
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* time, and put a suitable entry in _jack_ports.
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*
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* It isn't critical that we keep _jack_ports current if any of these
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* ports goes away, but since we get told about that here, we do that
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* just to keep things clean. This will happen if someone disconnects a
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* USB MIDI device, for example.
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*/
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if (!jack_port_is_mine (_priv_jack, jack_port)) {
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const char* name = jack_port_name (jack_port);
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boost::shared_ptr<JackPorts> ports = _jack_ports.write_copy();
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if (!reg) {
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if (ports->erase (name)) {
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_jack_ports.update (ports);
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} else {
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_jack_ports.no_update();
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}
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} else {
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if (ports->find (name) != ports->end()) {
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/* hmmm, we already have this port */
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std::cout << "re-registration of JACK port named " << name << std::endl;
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ports->erase (name);
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}
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boost::shared_ptr<JackPort> jp (new JackPort (jack_port));
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ports->insert (std::make_pair (name, jp));
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_jack_ports.update (ports);
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}
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}
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}
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int
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JACKAudioBackend::_graph_order_callback (void *arg)
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{
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return static_cast<JACKAudioBackend*> (arg)->manager.graph_order_callback ();
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}
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void
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JACKAudioBackend::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn, void* arg)
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{
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static_cast<JACKAudioBackend*> (arg)->connect_callback (id_a, id_b, conn);
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}
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void
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JACKAudioBackend::connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn)
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{
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if (manager.port_remove_in_progress()) {
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return;
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}
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GET_PRIVATE_JACK_POINTER (_priv_jack);
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jack_port_t* a = jack_port_by_id (_priv_jack, id_a);
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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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}
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bool
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JACKAudioBackend::connected (PortHandle p, bool process_callback_safe)
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{
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bool ret = false;
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jack_port_t* port = boost::dynamic_pointer_cast<JackPort>(p)->jack_ptr;
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const char** ports;
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if (process_callback_safe) {
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ports = jack_port_get_connections (port);
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} else {
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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ports = jack_port_get_all_connections (_priv_jack, port);
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}
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if (ports) {
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ret = true;
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}
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jack_free (ports);
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return ret;
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}
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bool
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JACKAudioBackend::connected_to (PortHandle p, const std::string& other, bool process_callback_safe)
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{
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bool ret = false;
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const char** ports;
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jack_port_t* port = boost::dynamic_pointer_cast<JackPort>(p)->jack_ptr;
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if (process_callback_safe) {
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ports = jack_port_get_connections (port);
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} else {
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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ports = jack_port_get_all_connections (_priv_jack, port);
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}
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if (ports) {
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for (int i = 0; ports[i]; ++i) {
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if (other == ports[i]) {
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ret = true;
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}
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}
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jack_free (ports);
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}
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return ret;
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}
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bool
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JACKAudioBackend::physically_connected (PortHandle p, bool process_callback_safe)
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{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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jack_port_t* port = boost::dynamic_pointer_cast<JackPort>(p)->jack_ptr;
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const char** ports;
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if (process_callback_safe) {
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ports = jack_port_get_connections ((jack_port_t*)port);
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} else {
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
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}
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if (ports) {
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for (int i = 0; ports[i]; ++i) {
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jack_port_t* other = jack_port_by_name (_priv_jack, ports[i]);
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if (other && (jack_port_flags (other) & JackPortIsPhysical)) {
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jack_free (ports);
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return true;
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}
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}
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jack_free (ports);
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}
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return false;
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}
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bool
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JACKAudioBackend::externally_connected (PortHandle p, bool process_callback_safe)
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{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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jack_port_t* port = boost::dynamic_pointer_cast<JackPort>(p)->jack_ptr;
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const char** ports;
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if (process_callback_safe) {
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ports = jack_port_get_connections ((jack_port_t*)port);
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} else {
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, false);
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ports = jack_port_get_all_connections (_priv_jack, (jack_port_t*)port);
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}
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if (ports) {
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for (int i = 0; ports[i]; ++i) {
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jack_port_t* other = jack_port_by_name (_priv_jack, ports[i]);
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if (other && (jack_port_flags (other) & JackPortIsPhysical)) {
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jack_free (ports);
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return true;
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}
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if (other && !jack_port_is_mine (_priv_jack, other)) {
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jack_free (ports);
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return true;
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}
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}
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jack_free (ports);
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}
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return false;
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}
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int
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JACKAudioBackend::get_connections (PortHandle p, vector<string>& s, bool process_callback_safe)
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{
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const char** ports;
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jack_port_t* port = boost::dynamic_pointer_cast<JackPort>(p)->jack_ptr;
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if (process_callback_safe) {
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ports = jack_port_get_connections (port);
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} else {
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0);
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ports = jack_port_get_all_connections (_priv_jack, port);
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}
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if (ports) {
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for (int i = 0; ports[i]; ++i) {
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s.push_back (ports[i]);
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}
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jack_free (ports);
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}
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return s.size();
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}
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DataType
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JACKAudioBackend::port_data_type (PortHandle port) const
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{
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return jack_port_type_to_ardour_data_type (jack_port_type (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr));
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}
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const string&
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JACKAudioBackend::my_name() const
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{
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return _jack_connection->client_name();
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}
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bool
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JACKAudioBackend::port_is_physical (PortHandle port) const
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{
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if (!port) {
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return false;
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}
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return jack_port_flags (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr) & JackPortIsPhysical;
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}
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int
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JACKAudioBackend::get_ports (const string& port_name_pattern, DataType type, PortFlags flags, vector<string>& s) const
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{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack,0);
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const char** ports = jack_get_ports (_priv_jack, port_name_pattern.c_str(),
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ardour_data_type_to_jack_port_type (type),
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ardour_port_flags_to_jack_flags (flags));
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if (ports == 0) {
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return 0;
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}
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for (uint32_t i = 0; ports[i]; ++i) {
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s.push_back (ports[i]);
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}
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jack_free (ports);
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return s.size();
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}
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ChanCount
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JACKAudioBackend::n_physical_inputs () const
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{
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return n_physical (JackPortIsInput);
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}
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ChanCount
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JACKAudioBackend::n_physical_outputs () const
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{
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return n_physical (JackPortIsOutput);
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}
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void
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JACKAudioBackend::get_physical (DataType type, unsigned long flags, vector<string>& phy) const
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{
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GET_PRIVATE_JACK_POINTER (_priv_jack);
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const char ** ports;
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if ((ports = jack_get_ports (_priv_jack, NULL, ardour_data_type_to_jack_port_type (type), JackPortIsPhysical | flags)) == 0) {
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return;
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}
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if (ports) {
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for (uint32_t i = 0; ports[i]; ++i) {
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if (strstr (ports[i], "Midi-Through")) {
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continue;
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}
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phy.push_back (ports[i]);
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}
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jack_free (ports);
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}
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}
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/** Get physical ports for which JackPortIsOutput is set; ie those that correspond to
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* a physical input connector.
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*/
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void
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JACKAudioBackend::get_physical_inputs (DataType type, vector<string>& ins)
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{
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get_physical (type, JackPortIsOutput, ins);
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}
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/** Get physical ports for which JackPortIsInput is set; ie those that correspond to
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* a physical output connector.
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*/
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void
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JACKAudioBackend::get_physical_outputs (DataType type, vector<string>& outs)
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{
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get_physical (type, JackPortIsInput, outs);
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}
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bool
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JACKAudioBackend::can_monitor_input () const
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{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack,false);
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const char ** ports;
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if ((ports = jack_get_ports (_priv_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortCanMonitor)) == 0) {
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return false;
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}
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jack_free (ports);
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return true;
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}
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int
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JACKAudioBackend::request_input_monitoring (PortHandle port, bool yn)
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{
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return jack_port_request_monitor (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, yn);
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}
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int
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JACKAudioBackend::ensure_input_monitoring (PortHandle port, bool yn)
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{
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return jack_port_ensure_monitor (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, yn);
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}
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bool
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JACKAudioBackend::monitoring_input (PortHandle port)
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{
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return jack_port_monitoring_input (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr);
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}
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PortEngine::PortPtr
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JACKAudioBackend::register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags)
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{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, PortEngine::PortPtr());
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jack_port_t* jack_port = jack_port_register (_priv_jack, shortname.c_str(),
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ardour_data_type_to_jack_port_type (type),
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ardour_port_flags_to_jack_flags (flags),
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0);
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if (!jack_port) {
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return PortEngine::PortPtr();
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}
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boost::shared_ptr<JackPort> jp;
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{
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RCUWriter<JackPorts> writer (_jack_ports);
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boost::shared_ptr<JackPorts> ports = writer.get_copy();
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jp.reset (new JackPort (jack_port));
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ports->insert (std::make_pair (jack_port_name (jack_port), jp));
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}
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_jack_ports.flush();
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return jp;
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}
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|
void
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JACKAudioBackend::unregister_port (PortHandle port)
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|
{
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GET_PRIVATE_JACK_POINTER (_priv_jack);
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boost::shared_ptr<JackPort> jp = boost::dynamic_pointer_cast<JackPort>(port);
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const std::string name = jack_port_name (jp->jack_ptr);
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|
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|
{
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RCUWriter<JackPorts> writer (_jack_ports);
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boost::shared_ptr<JackPorts> ports = writer.get_copy();
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ports->erase (name);
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}
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|
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_jack_ports.flush ();
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(void) jack_port_unregister (_priv_jack, jp->jack_ptr);
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}
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|
int
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JACKAudioBackend::connect (PortHandle port, const std::string& other)
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|
{
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GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1);
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int r = jack_connect (_priv_jack, jack_port_name (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr), other.c_str());
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if (r == 0 || r == EEXIST) {
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return 0;
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}
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return r;
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|
}
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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());
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|
if (r == 0 || r == EEXIST) {
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|
return 0;
|
|
}
|
|
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 (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr), 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, boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr);
|
|
}
|
|
|
|
int
|
|
JACKAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** 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 (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, 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 (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, 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 (boost::dynamic_pointer_cast<JackPort>(port)->jack_ptr, nframes);
|
|
}
|
|
|
|
uint32_t
|
|
JACKAudioBackend::port_name_size() const
|
|
{
|
|
return jack_port_name_size ();
|
|
}
|