diff options
Diffstat (limited to 'libs/backends/jack/jack_portengine.cc')
| -rw-r--r-- | libs/backends/jack/jack_portengine.cc | 569 |
1 files changed, 569 insertions, 0 deletions
diff --git a/libs/backends/jack/jack_portengine.cc b/libs/backends/jack/jack_portengine.cc new file mode 100644 index 0000000000..bd352a2f11 --- /dev/null +++ b/libs/backends/jack/jack_portengine.cc @@ -0,0 +1,569 @@ +/* + 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_portengine.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; + +#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) { + jack_flags |= JackPortIsInput; + } + if (flags & IsOutput) { + jack_flags |= JackPortIsOutput; + } + if (flags & IsTerminal) { + 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) +{ + switch (d) { + case DataType::AUDIO: + return JACK_DEFAULT_AUDIO_TYPE; + case DataType::MIDI: + return JACK_DEFAULT_MIDI_TYPE; + } + + return ""; +} + +JACKPortEngine::JACKPortEngine (PortManager& pm, boost::shared_ptr<JackConnection> jc) + : PortEngine (pm) + , _jack_connection (jc) +{ + _jack_connection->Connected.connect_same_thread (jack_connection_connection, boost::bind (&JACKPortEngine::connected_to_jack, this)); +} + +JACKPortEngine::~JACKPortEngine () +{ + /* a default destructor would do this, and so would this one, + but we'll make it explicit in case we ever need to debug + the lifetime of the JACKConnection + */ + _jack_connection.reset (); +} + +void +JACKPortEngine::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); +} + +void* +JACKPortEngine::private_handle() const +{ + return _jack_connection->jack(); +} + +bool +JACKPortEngine::connected() const +{ + return _jack_connection->connected(); +} + +int +JACKPortEngine::set_port_name (PortHandle port, const std::string& name) +{ + return jack_port_set_name ((jack_port_t*) port, name.c_str()); +} + +string +JACKPortEngine::get_port_name (PortHandle port) const +{ + return jack_port_name ((jack_port_t*) port); +} + +PortEngine::PortHandle* +JACKPortEngine:: 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()); +} + +void +JACKPortEngine::_registration_callback (jack_port_id_t /*id*/, int /*reg*/, void* arg) +{ + static_cast<JACKPortEngine*> (arg)->manager.registration_callback (); +} + +int +JACKPortEngine::_graph_order_callback (void *arg) +{ + return static_cast<JACKPortEngine*> (arg)->manager.graph_order_callback (); +} + +void +JACKPortEngine::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn, void* arg) +{ + static_cast<JACKPortEngine*> (arg)->connect_callback (id_a, id_b, conn); +} + +void +JACKPortEngine::connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn) +{ + if (manager.port_remove_in_progress()) { + return; + } + + GET_PRIVATE_JACK_POINTER (_priv_jack); + + jack_port_t* a = jack_port_by_id (_priv_jack, id_a); + jack_port_t* b = jack_port_by_id (_priv_jack, id_b); + + manager.connect_callback (jack_port_name (a), jack_port_name (b), conn == 0 ? false : true); +} + +bool +JACKPortEngine::connected (PortHandle port, bool process_callback_safe) +{ + 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; +} + +bool +JACKPortEngine::connected_to (PortHandle port, const std::string& other, bool process_callback_safe) +{ + 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); + } + + return ret; +} + +bool +JACKPortEngine::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 +JACKPortEngine::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 +JACKPortEngine::port_data_type (PortHandle p) const +{ + return jack_port_type_to_ardour_data_type (jack_port_type ((jack_port_t*) p)); +} + +const string& +JACKPortEngine::my_name() const +{ + return _jack_connection->client_name(); +} + +bool +JACKPortEngine::port_is_physical (PortHandle ph) const +{ + if (!ph) { + return false; + } + + return jack_port_flags ((jack_port_t*) ph) & JackPortIsPhysical; +} + +int +JACKPortEngine::get_ports (const string& port_name_pattern, DataType type, PortFlags flags, vector<string>& s) const +{ + + 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; + } + + for (uint32_t i = 0; ports[i]; ++i) { + s.push_back (ports[i]); + } + + jack_free (ports); + + return s.size(); +} + +ChanCount +JACKPortEngine::n_physical (unsigned long flags) const +{ + ChanCount c; + + GET_PRIVATE_JACK_POINTER_RET (_priv_jack, c); + + const char ** ports = jack_get_ports (_priv_jack, NULL, NULL, JackPortIsPhysical | flags); + + if (ports) { + for (uint32_t i = 0; ports[i]; ++i) { + if (!strstr (ports[i], "Midi-Through")) { + DataType t = port_data_type (jack_port_by_name (_priv_jack, ports[i])); + if (t != DataType::NIL) { + c.set (t, c.get (t) + 1); + } + } + } + + jack_free (ports); + } + + return c; +} + +ChanCount +JACKPortEngine::n_physical_inputs () const +{ + return n_physical (JackPortIsInput); +} + +ChanCount +JACKPortEngine::n_physical_outputs () const +{ + return n_physical (JackPortIsOutput); +} + +void +JACKPortEngine::get_physical (DataType type, unsigned long flags, vector<string>& phy) const +{ + 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) { + 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 +JACKPortEngine::get_physical_inputs (DataType type, vector<string>& ins) +{ + get_physical (type, JackPortIsOutput, ins); +} + +/** Get physical ports for which JackPortIsInput is set; ie those that correspond to + * a physical output connector. + */ +void +JACKPortEngine::get_physical_outputs (DataType type, vector<string>& outs) +{ + get_physical (type, JackPortIsInput, outs); +} + + +bool +JACKPortEngine::can_monitor_input () const +{ + 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 +JACKPortEngine::request_input_monitoring (PortHandle port, bool yn) +{ + return jack_port_request_monitor ((jack_port_t*) port, yn); +} +int +JACKPortEngine::ensure_input_monitoring (PortHandle port, bool yn) +{ + return jack_port_ensure_monitor ((jack_port_t*) port, yn); +} +bool +JACKPortEngine::monitoring_input (PortHandle port) +{ + return jack_port_monitoring_input ((jack_port_t*) port); +} + + +pframes_t +JACKPortEngine::sample_time_at_cycle_start () +{ + GET_PRIVATE_JACK_POINTER_RET (_priv_jack, 0); + return jack_last_frame_time (_priv_jack); +} + + +PortEngine::PortHandle +JACKPortEngine::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 +JACKPortEngine::unregister_port (PortHandle port) +{ + GET_PRIVATE_JACK_POINTER (_priv_jack); + (void) jack_port_unregister (_priv_jack, (jack_port_t*) port); +} + +int +JACKPortEngine::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 +JACKPortEngine::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 +JACKPortEngine::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 +JACKPortEngine::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 +JACKPortEngine::disconnect_all (PortHandle port) +{ + GET_PRIVATE_JACK_POINTER_RET (_priv_jack, -1); + return jack_port_disconnect (_priv_jack, (jack_port_t*) port); +} + +int +JACKPortEngine::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 +JACKPortEngine::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 +JACKPortEngine::get_midi_event_count (void* port_buffer) +{ + return jack_midi_get_event_count (port_buffer); +} + +void +JACKPortEngine::midi_clear (void* port_buffer) +{ + jack_midi_clear_buffer (port_buffer); +} + +void +JACKPortEngine::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 +JACKPortEngine::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* +JACKPortEngine::get_buffer (PortHandle port, pframes_t nframes) +{ + return jack_port_get_buffer ((jack_port_t*) port, nframes); +} + +uint32_t +JACKPortEngine::port_name_size() const +{ + return jack_port_name_size (); +} |