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Diffstat (limited to 'libs/ardour/engine_state_controller.cc')
| -rw-r--r-- | libs/ardour/engine_state_controller.cc | 1906 |
1 files changed, 0 insertions, 1906 deletions
diff --git a/libs/ardour/engine_state_controller.cc b/libs/ardour/engine_state_controller.cc deleted file mode 100644 index 1a3d9978e6..0000000000 --- a/libs/ardour/engine_state_controller.cc +++ /dev/null @@ -1,1906 +0,0 @@ -/* - * Copyright (C) 2015-2017 Paul Davis <paul@linuxaudiosystems.com> - * - * 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., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "ardour/engine_state_controller.h" - -#include "ardour/audioengine.h" -#include "ardour/session.h" -#include "ardour/rc_configuration.h" -#include "ardour/data_type.h" - -#include "pbd/pthread_utils.h" -#include "pbd/error.h" -#include "pbd/i18n.h" - - -using namespace ARDOUR; -using namespace PBD; - -namespace { - -struct DevicePredicate -{ - DevicePredicate (const std::string& device_name) - : _device_name (device_name) - {} - - bool operator ()(const AudioBackend::DeviceStatus& rhs) - { - return _device_name == rhs.name; - } - - private: - std::string _device_name; -}; -} - -EngineStateController* -EngineStateController::instance () -{ - static EngineStateController instance; - return &instance; -} - - -EngineStateController::EngineStateController () - : _current_state () - , _last_used_real_device ("") - -{ - AudioEngine::instance ()->Running.connect_same_thread (running_connection, boost::bind (&EngineStateController::_on_engine_running, this)); - AudioEngine::instance ()->Stopped.connect_same_thread (stopped_connection, boost::bind (&EngineStateController::_on_engine_stopped, this)); - AudioEngine::instance ()->Halted.connect_same_thread (stopped_connection, boost::bind (&EngineStateController::_on_engine_stopped, this)); - - /* Subscribe for udpates from AudioEngine */ - AudioEngine::instance ()->PortRegisteredOrUnregistered.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_ports_registration_update, this)); - AudioEngine::instance ()->SampleRateChanged.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_sample_rate_change, this, _1)); - AudioEngine::instance ()->BufferSizeChanged.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_buffer_size_change, this, _1)); - AudioEngine::instance ()->DeviceListChanged.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_device_list_change, this)); - AudioEngine::instance ()->DeviceError.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_device_error, this)); - - /* Global configuration parameters update */ - Config->ParameterChanged.connect_same_thread (update_connections, boost::bind (&EngineStateController::_on_parameter_changed, this, _1)); - - _deserialize_and_load_engine_states (); - _deserialize_and_load_midi_port_states (); - _do_initial_engine_setup (); - - // now push the sate to the backend - push_current_state_to_backend (false); -} - - -EngineStateController::~EngineStateController () -{ -} - - -void -EngineStateController::set_session (Session* session) -{ - _session = session; - _session->SessionLoaded.connect_same_thread (session_connections, boost::bind (&EngineStateController::_on_session_loaded, this)); -} - - -void -EngineStateController::remove_session () -{ - session_connections.drop_connections (); - _session = 0; -} - - -XMLNode& -EngineStateController::serialize_audio_midi_settings () -{ - - XMLNode* root = new XMLNode ("AudioMidiSettings"); - - _serialize_engine_states (root); - _serialize_midi_port_states (root); - - return *root; -} - - -void -EngineStateController::save_audio_midi_settings () -{ - Config->add_extra_xml (serialize_audio_midi_settings ()); - Config->save_state (); -} - - -void -EngineStateController::_deserialize_and_load_engine_states () -{ - XMLNode* audio_midi_settings_root = ARDOUR::Config->extra_xml ("AudioMidiSettings"); - - if (!audio_midi_settings_root) { - return; - } - - XMLNode* engine_states = audio_midi_settings_root->child ("EngineStates"); - - if (!engine_states) { - return; - } - - XMLNodeList state_nodes_list = engine_states->children (); - XMLNodeConstIterator state_node_iter = state_nodes_list.begin (); - - for (; state_node_iter != state_nodes_list.end (); ++state_node_iter) { - - XMLNode* state_node = *state_node_iter; - StatePtr engine_state (new State); - XMLProperty const * prop = NULL; - - if ((prop = state_node->property ("backend-name")) == 0) { - continue; - } - engine_state->backend_name = prop->value (); - - if ((prop = state_node->property ("device-name")) == 0) { - continue; - } - engine_state->device_name = prop->value (); - - if ((prop = state_node->property ("sample-rate")) == 0) { - continue; - } - engine_state->sample_rate = atoi (prop->value ()); - - if ((prop = state_node->property ("buffer-size")) == 0) { - continue; - } - engine_state->buffer_size = atoi (prop->value ()); - - if ((prop = state_node->property ("active")) == 0) { - continue; - } - engine_state->active = string_is_affirmative (prop->value ()); - - XMLNodeList state_children_list = state_node->children (); - XMLNodeConstIterator state_child_iter = state_children_list.begin (); - - for (; state_child_iter != state_children_list.end (); ++state_child_iter) { - XMLNode* state_child = *state_child_iter; - - if (state_child->name () == "InputConfiguration") { - - XMLNodeList input_states_nodes = state_child->children (); - XMLNodeConstIterator input_state_node_iter = input_states_nodes.begin (); - PortStateList& input_states = engine_state->input_channel_states; - - for (; input_state_node_iter != input_states_nodes.end (); ++input_state_node_iter) { - - XMLNode* input_state_node = *input_state_node_iter; - - if (input_state_node->name () != "input") { - continue; - } - PortState input_state (input_state_node->name ()); - - if ((prop = input_state_node->property ("name")) == 0) { - continue; - } - input_state.name = prop->value (); - - if ((prop = input_state_node->property ("active")) == 0) { - continue; - } - input_state.active = string_is_affirmative (prop->value ()); - - input_states.push_back (input_state); - } - - } else if (state_child->name () == "MultiOutConfiguration") { - - XMLNodeList multi_out_state_nodes = state_child->children (); - XMLNodeConstIterator multi_out_state_node_iter = multi_out_state_nodes.begin (); - PortStateList& multi_out_states = engine_state->multi_out_channel_states; - - for (; multi_out_state_node_iter != multi_out_state_nodes.end (); ++multi_out_state_node_iter) { - - XMLNode* multi_out_state_node = *multi_out_state_node_iter; - - if (multi_out_state_node->name () != "output") { - continue; - } - PortState multi_out_state (multi_out_state_node->name ()); - - if ((prop = multi_out_state_node->property ("name")) == 0) { - continue; - } - multi_out_state.name = prop->value (); - - if ((prop = multi_out_state_node->property ("active")) == 0) { - continue; - } - multi_out_state.active = string_is_affirmative (prop->value ()); - - multi_out_states.push_back (multi_out_state); - } - } else if (state_child->name () == "StereoOutConfiguration") { - - XMLNodeList stereo_out_state_nodes = state_child->children (); - XMLNodeConstIterator stereo_out_state_node_iter = stereo_out_state_nodes.begin (); - PortStateList& stereo_out_states = engine_state->stereo_out_channel_states; - - for (; stereo_out_state_node_iter != stereo_out_state_nodes.end (); ++stereo_out_state_node_iter) { - - XMLNode* stereo_out_state_node = *stereo_out_state_node_iter; - - if (stereo_out_state_node->name () != "output") { - continue; - } - PortState stereo_out_state (stereo_out_state_node->name ()); - - if ((prop = stereo_out_state_node->property ("name")) == 0) { - continue; - } - stereo_out_state.name = prop->value (); - - if ((prop = stereo_out_state_node->property ("active")) == 0) { - continue; - } - stereo_out_state.active = string_is_affirmative (prop->value ()); - - stereo_out_states.push_back (stereo_out_state); - } - } - } - - _states.push_back (engine_state); - } -} - - -void -EngineStateController::_deserialize_and_load_midi_port_states () -{ - XMLNode* audio_midi_settings_root = ARDOUR::Config->extra_xml ("AudioMidiSettings"); - - if (!audio_midi_settings_root) { - return; - } - - XMLNode* midi_states = audio_midi_settings_root->child ("MidiStates"); - - if (!midi_states) { - return; - } - - XMLNodeList state_nodes_list = midi_states->children (); - XMLNodeConstIterator state_node_iter = state_nodes_list.begin (); - for (; state_node_iter != state_nodes_list.end (); ++state_node_iter) { - - XMLNode* state_node = *state_node_iter; - if (state_node->name () == "MidiInputs") { - - XMLNodeList input_state_nodes = state_node->children (); - XMLNodeConstIterator input_state_node_iter = input_state_nodes.begin (); - _midi_inputs.clear (); - - for (; input_state_node_iter != input_state_nodes.end (); ++input_state_node_iter) { - - XMLNode* input_state_node = *input_state_node_iter; - XMLProperty const * prop = NULL; - - if (input_state_node->name () != "input") { - continue; - } - MidiPortState input_state (input_state_node->name ()); - - if ((prop = input_state_node->property ("name")) == 0) { - continue; - } - input_state.name = prop->value (); - - if ((prop = input_state_node->property ("active")) == 0) { - continue; - } - input_state.active = string_is_affirmative (prop->value ()); - - if ((prop = input_state_node->property ("scene-connected")) == 0) { - continue; - } - input_state.scene_connected = string_is_affirmative (prop->value ()); - - if ((prop = input_state_node->property ("mtc-in")) == 0) { - continue; - } - input_state.mtc_in = string_is_affirmative (prop->value ()); - - _midi_inputs.push_back (input_state); - } - - } else if (state_node->name () == "MidiOutputs") { - - XMLNodeList output_state_nodes = state_node->children (); - XMLNodeConstIterator output_state_node_iter = output_state_nodes.begin (); - _midi_outputs.clear (); - - for (; output_state_node_iter != output_state_nodes.end (); ++output_state_node_iter) { - - XMLNode* output_state_node = *output_state_node_iter; - XMLProperty const * prop = NULL; - - if (output_state_node->name () != "output") { - continue; - } - MidiPortState output_state (output_state_node->name ()); - - if ((prop = output_state_node->property ("name")) == 0) { - continue; - } - output_state.name = prop->value (); - - if ((prop = output_state_node->property ("active")) == 0) { - continue; - } - output_state.active = string_is_affirmative (prop->value ()); - - if ((prop = output_state_node->property ("scene-connected")) == 0) { - continue; - } - output_state.scene_connected = string_is_affirmative (prop->value ()); - - if ((prop = output_state_node->property ("mtc-in")) == 0) { - continue; - } - output_state.mtc_in = string_is_affirmative (prop->value ()); - - _midi_outputs.push_back (output_state); - } - } - } -} - - -void -EngineStateController::_serialize_engine_states (XMLNode* audio_midi_settings_node) -{ - if (!audio_midi_settings_node) { - return; - } - - // clean up state data first - audio_midi_settings_node->remove_nodes_and_delete ("EngineStates" ); - - XMLNode* engine_states = new XMLNode ("EngineStates" ); - - StateList::const_iterator state_iter = _states.begin (); - for (; state_iter != _states.end (); ++state_iter) { - - StatePtr state_ptr = *state_iter; - - // create new node for the state - XMLNode* state_node = new XMLNode ("State"); - - state_node->add_property ("backend-name", state_ptr->backend_name); - state_node->add_property ("device-name", state_ptr->device_name); - state_node->add_property ("sample-rate", state_ptr->sample_rate); - state_node->add_property ("buffer-size", state_ptr->buffer_size); - state_node->add_property ("active", state_ptr->active ? "yes" : "no"); - - // store channel states: - // inputs - XMLNode* input_config_node = new XMLNode ("InputConfiguration"); - PortStateList& input_channels = state_ptr->input_channel_states; - PortStateList::const_iterator input_state_iter = input_channels.begin (); - for (; input_state_iter != input_channels.end (); ++input_state_iter) { - XMLNode* input_state_node = new XMLNode ("input"); - input_state_node->add_property ("name", input_state_iter->name); - input_state_node->add_property ("active", input_state_iter->active ? "yes" : "no"); - input_config_node->add_child_nocopy (*input_state_node); - } - state_node->add_child_nocopy (*input_config_node); - - // multi out outputs - XMLNode* multi_out_config_node = new XMLNode ("MultiOutConfiguration"); - PortStateList& multi_out_channels = state_ptr->multi_out_channel_states; - PortStateList::const_iterator multi_out_state_iter = multi_out_channels.begin (); - for (; multi_out_state_iter != multi_out_channels.end (); ++multi_out_state_iter) { - XMLNode* multi_out_state_node = new XMLNode ("output" ); - multi_out_state_node->add_property ("name", multi_out_state_iter->name); - multi_out_state_node->add_property ("active", multi_out_state_iter->active ? "yes" : "no"); - multi_out_config_node->add_child_nocopy (*multi_out_state_node); - } - state_node->add_child_nocopy (*multi_out_config_node); - - // stereo out outputs - XMLNode* stereo_out_config_node = new XMLNode ("StereoOutConfiguration"); - PortStateList& stereo_out_channels = state_ptr->stereo_out_channel_states; - PortStateList::const_iterator stereo_out_state_iter = stereo_out_channels.begin (); - for (; stereo_out_state_iter != stereo_out_channels.end (); ++stereo_out_state_iter) { - XMLNode* stereo_out_state_node = new XMLNode ("output" ); - stereo_out_state_node->add_property ("name", stereo_out_state_iter->name); - stereo_out_state_node->add_property ("active", stereo_out_state_iter->active ? "yes" : "no"); - stereo_out_config_node->add_child_nocopy (*stereo_out_state_node); - } - state_node->add_child_nocopy (*stereo_out_config_node); - - engine_states->add_child_nocopy (*state_node); - } - - audio_midi_settings_node->add_child_nocopy (*engine_states); -} - - -void -EngineStateController::_serialize_midi_port_states (XMLNode* audio_midi_settings_node) -{ - if (!audio_midi_settings_node) { - return; - } - - // clean up state data first - audio_midi_settings_node->remove_nodes_and_delete ("MidiStates" ); - - XMLNode* midi_states_node = new XMLNode ("MidiStates" ); - - XMLNode* midi_input_states_node = new XMLNode ("MidiInputs" ); - MidiPortStateList::const_iterator midi_input_state_iter = _midi_inputs.begin (); - for (; midi_input_state_iter != _midi_inputs.end (); ++midi_input_state_iter) { - XMLNode* midi_input_node = new XMLNode ("input" ); - midi_input_node->add_property ("name", midi_input_state_iter->name); - midi_input_node->add_property ("active", midi_input_state_iter->active ? "yes" : "no"); - midi_input_node->add_property ("scene_connected", midi_input_state_iter->scene_connected ? "yes" : "no"); - midi_input_node->add_property ("mtc-in", midi_input_state_iter->mtc_in ? "yes" : "no"); - midi_input_states_node->add_child_nocopy (*midi_input_node); - } - midi_states_node->add_child_nocopy (*midi_input_states_node); - - XMLNode* midi_output_states_node = new XMLNode ("MidiOutputs" ); - MidiPortStateList::const_iterator midi_output_state_iter = _midi_outputs.begin (); - for (; midi_output_state_iter != _midi_outputs.end (); ++midi_output_state_iter) { - XMLNode* midi_output_node = new XMLNode ("output" ); - midi_output_node->add_property ("name", midi_output_state_iter->name); - midi_output_node->add_property ("active", midi_output_state_iter->active ? "yes" : "no"); - midi_output_node->add_property ("scene_connected", midi_output_state_iter->scene_connected ? "yes" : "no"); - midi_output_node->add_property ("mtc-in", midi_output_state_iter->mtc_in ? "yes" : "no"); - midi_output_states_node->add_child_nocopy (*midi_output_node); - } - midi_states_node->add_child_nocopy (*midi_output_states_node); - - audio_midi_settings_node->add_child_nocopy (*midi_states_node); -} - - -bool -EngineStateController::_apply_state (const StatePtr& state) -{ - bool applied = false; - - if (set_new_backend_as_current (state->backend_name)) { - applied = set_new_device_as_current (state->device_name); - } - - return applied; -} - - -void -EngineStateController::_do_initial_engine_setup () -{ - bool state_applied = false; - - // if we have no saved state load default values - if (!_states.empty ()) { - - // look for last active state first - StateList::const_iterator state_iter = _states.begin (); - for (; state_iter != _states.end (); ++state_iter) { - if ( (*state_iter)->active ) { - state_applied = _apply_state (*state_iter); - break; - } - } - - // last active state was not applied - // try others - if (!state_applied) { - StateList::const_iterator state_iter = _states.begin (); - for (; state_iter != _states.end (); ++state_iter) { - state_applied = _apply_state (*state_iter); - break; - } - } - } - - if (!state_applied ){ - std::vector<const AudioBackendInfo*> backends = AudioEngine::instance ()->available_backends (); - - if (!backends.empty ()) { - - if (!set_new_backend_as_current (backends.front ()->name )) { - std::cerr << "\tfailed to set backend [" << backends.front ()->name << "]\n"; - } - } - - } -} - - -bool -EngineStateController::_validate_current_device_state () -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - // check if device parameters from the state record are still valid - // validate sample rate - std::vector<float> sample_rates = backend->available_sample_rates (_current_state->device_name); - - if (sample_rates.empty ()) { - return false; - } - - // check if session desired sample rate (if it's set) could be used with this device - if (_session != 0) { - - if ( !set_new_sample_rate_in_controller (_session->nominal_sample_rate ())) { - if ( !set_new_sample_rate_in_controller (backend->default_sample_rate ()) ) { - if (!set_new_sample_rate_in_controller (sample_rates.front ()) ) { - return false; - } - } - } - - } else { - // check if current sample rate is supported because we have no session desired sample rate value - if ( !set_new_sample_rate_in_controller (_current_state->sample_rate)) { - if ( !set_new_sample_rate_in_controller (backend->default_sample_rate ()) ) { - if (!set_new_sample_rate_in_controller (sample_rates.front ()) ) { - return false; - } - } - } - } - - // validate buffer size - std::vector<pframes_t> buffer_sizes = backend->available_buffer_sizes (_current_state->device_name); - // check if buffer size is supported - std::vector<pframes_t>::iterator bs_iter = std::find (buffer_sizes.begin (), buffer_sizes.end (), _current_state->buffer_size); - // if current is not found switch to default if is supported - if (bs_iter == buffer_sizes.end ()) { - bs_iter = std::find (buffer_sizes.begin (), buffer_sizes.end (), backend->default_buffer_size (_current_state->device_name)); - - if (bs_iter != buffer_sizes.end ()) { - _current_state->buffer_size = backend->default_buffer_size (_current_state->device_name); - } else { - if (!buffer_sizes.empty ()) { - _current_state->buffer_size = buffer_sizes.front (); - } - } - - } - - return true; -} - - -void -EngineStateController::_update_ltc_source_port () -{ - // this method is called if the list of ports is changed - - // check that ltc-in port from Config still exists - if (_audio_input_port_exists (get_ltc_source_port ())) { - // audio port, that was saved in Config, exists - return ; - } - - //otherwise set first available audio port - if (!_current_state->input_channel_states.empty ()) { - set_ltc_source_port (_current_state->input_channel_states.front ().name); - return ; - } - - // no available audio-in ports - set_ltc_source_port (""); -} - -void -EngineStateController::_update_ltc_output_port () -{ - // this method is called if the list of ports is changed - - // check that ltc-out port from Config still exists - if (_audio_output_port_exists (get_ltc_output_port ())) { - // audio port, that was saved in Config, exists - return ; - } - - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - //otherwise set first available audio port - if (!output_states->empty ()) { - set_ltc_output_port (output_states->front ().name); - return ; - } - - // no available audio-out ports - set_ltc_output_port (""); -} - - -bool -EngineStateController::_audio_input_port_exists (const std::string& port_name) -{ - PortStateList::const_iterator iter = _current_state->input_channel_states.begin (); - for (; iter != _current_state->input_channel_states.end (); ++iter ) { - if (iter->name == port_name) - return true; - } - return false; -} - -bool -EngineStateController::_audio_output_port_exists (const std::string& port_name) -{ - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - PortStateList::const_iterator iter = output_states->begin (); - for (; iter != output_states->end (); ++iter ) { - if (iter->name == port_name) - return true; - } - return false; -} - - -const std::string& -EngineStateController::get_current_backend_name () const -{ - return _current_state->backend_name; -} - - -const std::string& -EngineStateController::get_current_device_name () const -{ - return _current_state->device_name; -} - - -void -EngineStateController::available_backends (std::vector<const AudioBackendInfo*>& available_backends) -{ - available_backends = AudioEngine::instance ()->available_backends (); -} - - -void -EngineStateController::enumerate_devices (std::vector<AudioBackend::DeviceStatus>& device_vector) const -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - device_vector = backend->enumerate_devices (); -} - - -samplecnt_t -EngineStateController::get_current_sample_rate () const -{ - return _current_state->sample_rate; -} - - -samplecnt_t -EngineStateController::get_default_sample_rate () const -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - return backend->default_sample_rate (); -} - - -void -EngineStateController::available_sample_rates_for_current_device (std::vector<float>& sample_rates) const -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - sample_rates = backend->available_sample_rates (_current_state->device_name); -} - - -uint32_t -EngineStateController::get_current_buffer_size () const -{ - return _current_state->buffer_size; -} - - -uint32_t -EngineStateController::get_default_buffer_size () const -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - return backend->default_buffer_size (_current_state->device_name); -} - - -void -EngineStateController::available_buffer_sizes_for_current_device (std::vector<pframes_t>& buffer_sizes) const -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - buffer_sizes = backend->available_buffer_sizes (_current_state->device_name); -} - - -bool -EngineStateController::set_new_backend_as_current (const std::string& backend_name) -{ - if (backend_name == AudioEngine::instance ()->current_backend_name ()) { - return true; - } - - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->set_backend (backend_name, PROGRAM_NAME, ""); - if (backend) - { - if (_current_state != NULL) { - _current_state->active = false; - } - - StateList::iterator found_state_iter = find_if (_states.begin (), _states.end (), - State::StatePredicate (backend_name, "None")); - - if (found_state_iter != _states.end ()) { - // we found a record for new engine with None device - switch to it - _current_state = *found_state_iter; - _validate_current_device_state (); - } else { - // create new record for this engine with default device - _current_state = boost::shared_ptr<State>(new State ()); - _current_state->backend_name = backend_name; - _current_state->device_name = "None"; - _validate_current_device_state (); - _states.push_front (_current_state); - } - - push_current_state_to_backend (false); - - return true; - } - - return false; -} - - -bool -EngineStateController::set_new_device_as_current (const std::string& device_name) -{ - if (_current_state->device_name == device_name) { - return true; - } - - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - std::vector<AudioBackend::DeviceStatus> device_vector = backend->enumerate_devices (); - - // validate the device - std::vector<AudioBackend::DeviceStatus>::iterator device_iter; - device_iter = std::find_if (device_vector.begin (), device_vector.end (), DevicePredicate (device_name)); - - // device is available - if (device_iter != device_vector.end ()) { - - boost::shared_ptr<State> previous_state (_current_state); - - // look through state list and find the record for this device and current engine - StateList::iterator found_state_iter = find_if (_states.begin (), _states.end (), - State::StatePredicate (backend->name (), device_name)); - - if (found_state_iter != _states.end ()) - { - // we found a record for current engine and provided device name - switch to it - - _current_state = *found_state_iter; - - if (!_validate_current_device_state ()) { - _current_state = previous_state; - return false; - } - - } else { - - // the record is not found, create new one - _current_state = boost::shared_ptr<State>(new State ()); - - _current_state->backend_name = backend->name (); - _current_state->device_name = device_name; - - if (!_validate_current_device_state ()) { - _current_state = previous_state; - return false; - } - - _states.push_front (_current_state); - } - - if (previous_state != NULL) { - previous_state->active = false; - } - - push_current_state_to_backend (false); - - _last_used_real_device.clear (); - - if (device_name != "None") { - _last_used_real_device = device_name; - } - - return true; - } - - // device is not supported by current backend - return false; -} - - -bool -EngineStateController::set_new_sample_rate_in_controller (samplecnt_t sample_rate) -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - std::vector<float> sample_rates = backend->available_sample_rates (_current_state->device_name); - std::vector<float>::iterator iter = std::find (sample_rates.begin (), sample_rates.end (), (float)sample_rate); - - if (iter != sample_rates.end ()) { - _current_state->sample_rate = sample_rate; - return true; - } - - return false; -} - - -bool -EngineStateController::set_new_buffer_size_in_controller (pframes_t buffer_size) -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - std::vector<uint32_t> buffer_sizes = backend->available_buffer_sizes (_current_state->device_name); - std::vector<uint32_t>::iterator iter = std::find (buffer_sizes.begin (), buffer_sizes.end (), buffer_size); - - if (iter != buffer_sizes.end ()) { - _current_state->buffer_size = buffer_size; - return true; - } - - return false; -} - - -uint32_t -EngineStateController::get_available_inputs_count () const -{ - uint32_t available_channel_count = 0; - - PortStateList::const_iterator iter = _current_state->input_channel_states.begin (); - - for (; iter != _current_state->input_channel_states.end (); ++iter) { - if (iter->active) { - ++available_channel_count; - } - } - - return available_channel_count; -} - - -uint32_t -EngineStateController::get_available_outputs_count () const -{ - uint32_t available_channel_count = 0; - - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - PortStateList::const_iterator iter = output_states->begin (); - - for (; iter != output_states->end (); ++iter) { - if (iter->active) { - ++available_channel_count; - } - } - - return available_channel_count; -} - - -void -EngineStateController::get_physical_audio_inputs (std::vector<std::string>& port_names) -{ - port_names.clear (); - - PortStateList &input_states = _current_state->input_channel_states; - - PortStateList::iterator iter = input_states.begin (); - for (; iter != input_states.end (); ++iter) { - if (iter->active) { - port_names.push_back (iter->name); - } - } -} - - -void -EngineStateController::get_physical_audio_outputs (std::vector<std::string>& port_names) -{ - port_names.clear (); - - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - PortStateList::iterator iter = output_states->begin (); - for (; iter != output_states->end (); ++iter) { - if (iter->active) { - port_names.push_back (iter->name); - } - } -} - - -void -EngineStateController::get_physical_midi_inputs (std::vector<std::string>& port_names) -{ - port_names.clear (); - - MidiPortStateList::iterator iter = _midi_inputs.begin (); - for (; iter != _midi_inputs.end (); ++iter) { - if (iter->available && iter->active) { - port_names.push_back (iter->name); - } - } -} - - -void -EngineStateController::get_physical_midi_outputs (std::vector<std::string>& port_names) -{ - port_names.clear (); - - MidiPortStateList::iterator iter = _midi_outputs.begin (); - for (; iter != _midi_outputs.end (); ++iter) { - if (iter->available && iter->active) { - port_names.push_back (iter->name); - } - } -} - - -void -EngineStateController::set_physical_audio_input_state (const std::string& port_name, bool state) -{ - PortStateList &input_states = _current_state->input_channel_states; - PortStateList::iterator found_state_iter; - found_state_iter = std::find (input_states.begin (), input_states.end (), PortState (port_name)); - - if (found_state_iter != input_states.end () && found_state_iter->active != state ) { - found_state_iter->active = state; - AudioEngine::instance ()->reconnect_session_routes (true, false); - - InputConfigChanged (); - } -} - - -void -EngineStateController::set_physical_audio_output_state (const std::string& port_name, bool state) -{ - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - PortStateList::iterator target_state_iter; - target_state_iter = std::find (output_states->begin (), output_states->end (), PortState (port_name)); - - if (target_state_iter != output_states->end () && target_state_iter->active != state ) { - target_state_iter->active = state; - - // if StereoOut mode is used - if (Config->get_output_auto_connect () & AutoConnectMaster) { - - // get next element - PortStateList::iterator next_state_iter (target_state_iter); - - // loopback - if (++next_state_iter == output_states->end ()) { - next_state_iter = output_states->begin (); - } - - - // only two outputs should be enabled - if (output_states->size () <= 2) { - - target_state_iter->active = true; - next_state_iter->active = true; - - } else { - - // if current was set to active - activate next and disable the rest - if (target_state_iter->active ) { - next_state_iter->active = true; - } else { - // if current was deactivated but the next is active - if (next_state_iter->active) { - if (++next_state_iter == output_states->end ()) { - next_state_iter = output_states->begin (); - } - next_state_iter->active = true; - } else { - // if current was deactivated but the previous is active - restore the state of current - target_state_iter->active = true; // state restored; - --target_state_iter; // switch to previous to make it stop point in the next cycle - target_state_iter->active = true; - } - } - - // now deactivate the rest - while (++next_state_iter != target_state_iter) { - - if (next_state_iter == output_states->end ()) { - next_state_iter = output_states->begin (); - // we jumped, so additional check is required - if (next_state_iter == target_state_iter) { - break; - } - } - - next_state_iter->active = false; - } - - } - } - - AudioEngine::instance ()->reconnect_session_routes (false, true); - OutputConfigChanged (); - } -} - - -bool -EngineStateController::get_physical_audio_input_state (const std::string& port_name) -{ - bool state = false; - - PortStateList &input_states = _current_state->input_channel_states; - PortStateList::iterator found_state_iter; - found_state_iter = std::find (input_states.begin (), input_states.end (), PortState (port_name)); - - if (found_state_iter != input_states.end ()) { - state = found_state_iter->active; - } - - return state; -} - - -bool -EngineStateController::get_physical_audio_output_state (const std::string& port_name) -{ - bool state = false; - - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - PortStateList::iterator found_state_iter; - found_state_iter = std::find (output_states->begin (), output_states->end (), PortState (port_name)); - - if (found_state_iter != output_states->end ()) { - state = found_state_iter->active; - } - - return state; -} - - -void -EngineStateController::set_physical_midi_input_state (const std::string& port_name, bool state) { - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_inputs.begin (), _midi_inputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_inputs.end () && found_state_iter->available && found_state_iter->active != state ) { - found_state_iter->active = state; - - if (_session) { - // reconnect MTC inputs as well - if (found_state_iter->mtc_in) { - _session->reconnect_mtc_ports (); - } - _session->reconnect_mmc_ports (true); - } - - MIDIInputConfigChanged (); - } -} - - -void -EngineStateController::set_physical_midi_output_state (const std::string& port_name, bool state) { - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_outputs.begin (), _midi_outputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_outputs.end () && found_state_iter->available && found_state_iter->active != state ) { - found_state_iter->active = state; - - if (_session) { - _session->reconnect_mmc_ports (false); - } - - MIDIOutputConfigChanged (); - } -} - - -bool -EngineStateController::get_physical_midi_input_state (const std::string& port_name, bool& scene_connected) { - - bool state = false; - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_inputs.begin (), _midi_inputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_inputs.end () && found_state_iter->available) { - state = found_state_iter->active; - scene_connected = found_state_iter->scene_connected; - } - - return state; -} - - -bool -EngineStateController::get_physical_midi_output_state (const std::string& port_name, bool& scene_connected) { - - bool state = false; - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_outputs.begin (), _midi_outputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_outputs.end () && found_state_iter->available) { - state = found_state_iter->active; - scene_connected = found_state_iter->scene_connected; - } - - return state; -} - - -void -EngineStateController::set_physical_midi_scene_in_connection_state (const std::string& port_name, bool state) { - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_inputs.begin (), _midi_inputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_inputs.end () && found_state_iter->available && found_state_iter->active ) { - found_state_iter->scene_connected = state; - - std::vector<std::string> ports; - ports.push_back (port_name); - MIDISceneInputConnectionChanged (ports, state); - } - -} - - -void -EngineStateController::set_physical_midi_scenen_out_connection_state (const std::string& port_name, bool state) { - - MidiPortStateList::iterator found_state_iter; - found_state_iter = std::find (_midi_outputs.begin (), _midi_outputs.end (), MidiPortState (port_name)); - - if (found_state_iter != _midi_outputs.end () && found_state_iter->available && found_state_iter->active ) { - found_state_iter->scene_connected = state; - - std::vector<std::string> ports; - ports.push_back (port_name); - MIDISceneOutputConnectionChanged (ports, state); - } - -} - - -void -EngineStateController::set_all_midi_scene_inputs_disconnected () -{ - MidiPortStateList::iterator iter = _midi_inputs.begin (); - for (; iter != _midi_inputs.end (); ++iter) { - iter->scene_connected = false; - } - - std::vector<std::string> ports; - MIDISceneInputConnectionChanged (ports, false); -} - - -void -EngineStateController::set_all_midi_scene_outputs_disconnected () -{ - MidiPortStateList::iterator iter = _midi_outputs.begin (); - for (; iter != _midi_outputs.end (); ++iter) { - iter->scene_connected = false; - } - - std::vector<std::string> ports; - MIDISceneOutputConnectionChanged (ports, false); -} - - -void -EngineStateController::set_mtc_source_port (const std::string& port_name) -{ - MidiPortStateList::iterator iter = _midi_inputs.begin (); - for (; iter != _midi_inputs.end (); ++iter) { - iter->mtc_in = false; - - if (iter->name == port_name) { - iter->mtc_in = true; - - if (_session) { - _session->reconnect_mtc_ports (); - } - } - } - - if (_session && port_name.empty ()) { - _session->reconnect_mtc_ports (); - } - - MTCInputChanged (port_name); -} - - -void -EngineStateController::set_state_to_all_inputs (bool state) -{ - bool something_changed = false; - - PortStateList::iterator iter = _current_state->input_channel_states.begin (); - for (; iter != _current_state->input_channel_states.end (); ++iter) { - if (iter->active != state) { - iter->active = state; - something_changed = true; - } - } - - if (something_changed) { - AudioEngine::instance ()->reconnect_session_routes (true, false); - InputConfigChanged (); - } -} - - -void -EngineStateController::set_state_to_all_outputs (bool state) -{ - // unapplicable in Stereo Out mode, just return - if (Config->get_output_auto_connect () & AutoConnectMaster) { - return; - } - - bool something_changed = false; - - PortStateList::iterator iter = _current_state->multi_out_channel_states.begin (); - for (; iter != _current_state->multi_out_channel_states.end (); ++iter) { - if (iter->active != state) { - iter->active = state; - something_changed = true; - } - } - - if (something_changed) { - AudioEngine::instance ()->reconnect_session_routes (false, true); - OutputConfigChanged (); - } -} - - -void -EngineStateController::get_physical_audio_input_states (std::vector<PortState>& channel_states) -{ - PortStateList &input_states = _current_state->input_channel_states; - channel_states.assign (input_states.begin (), input_states.end ()); -} - - -void -EngineStateController::get_physical_audio_output_states (std::vector<PortState>& channel_states) -{ - PortStateList* output_states; - if (Config->get_output_auto_connect () & AutoConnectMaster) { - output_states = &_current_state->stereo_out_channel_states; - } else { - output_states = &_current_state->multi_out_channel_states; - } - - channel_states.assign (output_states->begin (), output_states->end ()); -} - - -void -EngineStateController::get_physical_midi_input_states (std::vector<MidiPortState>& channel_states) -{ - channel_states.clear (); - - MidiPortStateList::iterator iter = _midi_inputs.begin (); - - for (; iter != _midi_inputs.end (); ++iter ) { - if (iter->available) { - MidiPortState state (iter->name); - state.active = iter->active; - state.available = true; - state.scene_connected = iter->scene_connected; - state.mtc_in = iter->mtc_in; - channel_states.push_back (state); - } - } -} - -void -EngineStateController::get_physical_midi_output_states (std::vector<MidiPortState>& channel_states) -{ - channel_states.clear (); - - MidiPortStateList::iterator iter = _midi_outputs.begin (); - - for (; iter != _midi_outputs.end (); ++iter ) { - if (iter->available) { - MidiPortState state (iter->name); - state.active = iter->active; - state.available = true; - state.scene_connected = iter->scene_connected; - state.mtc_in = iter->mtc_in; - channel_states.push_back (state); - } - } -} - - -void -EngineStateController::_on_session_loaded () -{ - if (!_session) { - return; - } - - AudioEngine::instance ()->reconnect_session_routes (true, true); - _session->reconnect_mtc_ports (); - _session->reconnect_mmc_ports (true); - _session->reconnect_mmc_ports (false); - - // This is done during session construction - // _session->reconnect_ltc_input (); - // _session->reconnect_ltc_output (); - - samplecnt_t desired_sample_rate = _session->nominal_sample_rate (); - if ( desired_sample_rate > 0 && set_new_sample_rate_in_controller (desired_sample_rate)) - { - push_current_state_to_backend (false); - SampleRateChanged (); // emit a signal - } -} - - -void -EngineStateController::_on_sample_rate_change (samplecnt_t new_sample_rate) -{ - if (_current_state->sample_rate != new_sample_rate) { - - // if sample rate has been changed - samplecnt_t sample_rate_to_set = new_sample_rate; - if (AudioEngine::instance ()->session ()) { - // and we have current session we should restore it back to the one tracks uses - sample_rate_to_set = AudioEngine::instance ()->session ()->sample_rate (); - } - - if ( !set_new_sample_rate_in_controller (sample_rate_to_set)) { - // if sample rate can't be set - // switch to NONE device - set_new_device_as_current ("None"); - DeviceListChanged (false); - DeviceError (); - } - } - - SampleRateChanged (); // emit a signal -} - - -void -EngineStateController::_on_buffer_size_change (pframes_t new_buffer_size) -{ - if (_current_state->buffer_size != new_buffer_size) { - _current_state->buffer_size = new_buffer_size; - } - - BufferSizeChanged (); // emit a signal -} - - -void -EngineStateController::_on_device_list_change () -{ - bool current_device_disconnected = false; - - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - std::vector<AudioBackend::DeviceStatus> device_vector = backend->enumerate_devices (); - - // find out out if current device is still available if it's not None - if (_current_state->device_name != "None") - { - std::vector<AudioBackend::DeviceStatus>::iterator device_iter; - device_iter = std::find_if (device_vector.begin (), device_vector.end (), DevicePredicate (_current_state->device_name)); - - // if current device is not available any more - switch to None device - if (device_iter == device_vector.end ()) { - - StateList::iterator found_state_iter = find_if (_states.begin (), _states.end (), - State::StatePredicate (_current_state->backend_name, "None")); - - if (found_state_iter != _states.end ()) { - // found the record - switch to it - _current_state = *found_state_iter; - _validate_current_device_state (); - } else { - // create new record for this engine with default device - _current_state = boost::shared_ptr<State>(new State ()); - _current_state->backend_name = backend->name (); - _current_state->device_name = "None"; - _validate_current_device_state (); - _states.push_front (_current_state); - } - - push_current_state_to_backend (true); - current_device_disconnected = true; - } - } else { - // if the device which was active before is available now - switch to it - - std::vector<AudioBackend::DeviceStatus>::iterator device_iter; - device_iter = std::find_if (device_vector.begin (), device_vector.end (), DevicePredicate (_last_used_real_device)); - - if (device_iter != device_vector.end ()) { - StateList::iterator found_state_iter = find_if (_states.begin (), _states.end (), - State::StatePredicate (_current_state->backend_name, - _last_used_real_device)); - - if (found_state_iter != _states.end ()) { - - boost::shared_ptr<State> previous_state (_current_state); - _current_state = *found_state_iter; - - if (_validate_current_device_state ()) { - push_current_state_to_backend (false); - } else { - // cannot use this device right now - _last_used_real_device.clear (); - _current_state = previous_state; - } - } - } - } - - DeviceListChanged (current_device_disconnected); // emit a signal -} - - -void -EngineStateController::_update_device_channels_state () -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - assert (backend); - - // update audio input states - std::vector<std::string> phys_audio_inputs; - backend->get_physical_inputs (DataType::AUDIO, phys_audio_inputs); - - PortStateList new_input_states; - PortStateList &input_states = _current_state->input_channel_states; - - std::vector<std::string>::const_iterator input_iter = phys_audio_inputs.begin (); - for (; input_iter != phys_audio_inputs.end (); ++input_iter) { - - PortState state (*input_iter); - state.active = true; - PortStateList::const_iterator found_state_iter = std::find (input_states.begin (), input_states.end (), state); - - if (found_state_iter != input_states.end ()) { - new_input_states.push_back (*found_state_iter); - } else { - new_input_states.push_back (state); - } - } - _current_state->input_channel_states = new_input_states; - - // update audio output states (multi out mode) - std::vector<std::string> phys_audio_outputs; - backend->get_physical_outputs (DataType::AUDIO, phys_audio_outputs); - - PortStateList new_output_states; - PortStateList &output_multi_states = _current_state->multi_out_channel_states; - - std::vector<std::string>::const_iterator output_iter = phys_audio_outputs.begin (); - for (; output_iter != phys_audio_outputs.end (); ++output_iter) { - - PortState state (*output_iter); - state.active = true; - PortStateList::const_iterator found_state_iter = std::find (output_multi_states.begin (), output_multi_states.end (), state); - - if (found_state_iter != output_multi_states.end ()) { - new_output_states.push_back (*found_state_iter); - } else { - new_output_states.push_back (state); - } - } - - _current_state->multi_out_channel_states = new_output_states; - - // update audio output states (stereo out mode) - new_output_states.clear (); - PortStateList &output_stereo_states = _current_state->stereo_out_channel_states; - - output_iter = phys_audio_outputs.begin (); - for (; output_iter != phys_audio_outputs.end (); ++output_iter) { - - PortState state (*output_iter); - state.active = true; - PortStateList::const_iterator found_state_iter = std::find (output_stereo_states.begin (), output_stereo_states.end (), state); - - if (found_state_iter != output_stereo_states.end ()) { - new_output_states.push_back (*found_state_iter); - } else { - new_output_states.push_back (state); - } - } - - _current_state->stereo_out_channel_states = new_output_states; - _refresh_stereo_out_channel_states (); - - - // update midi ports: unlike audio ports which states are saved per device - // each midi port state is saved individualy - // so get all midi ports from the backend - // and compare to the list of midi ports we have - // if physical port is new, add it to our state list - // if physical port is present in our state list - mark it available - // if there is no corresponding physical port to one we have in a list - leave it unavailable - MidiPortStateList::iterator iter = _midi_inputs.begin (); - for (; iter != _midi_inputs.end (); ++iter) { - iter->available = false; - } - - for (iter = _midi_outputs.begin (); iter != _midi_outputs.end (); ++iter) { - iter->available = false; - } - - // update midi input ports - std::vector<std::string> phys_midi_inputs; - backend->get_physical_inputs (DataType::MIDI, phys_midi_inputs); - - std::vector<std::string>::const_iterator midi_input_iter = phys_midi_inputs.begin (); - for (; midi_input_iter != phys_midi_inputs.end (); ++midi_input_iter) { - - MidiPortState state (*midi_input_iter); - state.active = false; - state.available = true; - MidiPortStateList::iterator found_state_iter = std::find (_midi_inputs.begin (), _midi_inputs.end (), state); - - if (found_state_iter != _midi_inputs.end ()) { - found_state_iter->available = true; - } else { - _midi_inputs.push_back (state); - } - } - - // update midi output ports - std::vector<std::string> phys_midi_outputs; - backend->get_physical_outputs (DataType::MIDI, phys_midi_outputs); - - std::vector<std::string>::const_iterator midi_output_iter = phys_midi_outputs.begin (); - for (; midi_output_iter != phys_midi_outputs.end (); ++midi_output_iter) { - - MidiPortState state (*midi_output_iter); - state.active = false; - state.available = true; - MidiPortStateList::iterator found_state_iter = std::find (_midi_outputs.begin (), _midi_outputs.end (), state); - - if (found_state_iter != _midi_outputs.end ()) { - found_state_iter->available = true; - } else { - _midi_outputs.push_back (state); - } - } -} - - -void -EngineStateController::_refresh_stereo_out_channel_states () -{ - PortStateList &output_states = _current_state->stereo_out_channel_states; - PortStateList::iterator active_iter = output_states.begin (); - - for (; active_iter != output_states.end (); ++active_iter) { - if (active_iter->active) { - break; - } - } - - uint32_t pending_active_channels = 2; - PortStateList::iterator iter = output_states.begin (); - // if found active - if (active_iter != output_states.end ()) { - iter = active_iter; - if (++iter == output_states.end ()) { - iter = output_states.begin (); - } - - (iter++)->active = true; - pending_active_channels = 0; - } - - // drop the rest of the states to false (until we reach the end or first existing active channel) - for (; iter != output_states.end () && iter != active_iter; ++iter) { - if (pending_active_channels) { - iter->active = true; - --pending_active_channels; - } else { - iter->active = false; - } - } -} - - -void -EngineStateController::_on_engine_running () -{ - AudioEngine::instance ()->reconnect_session_routes (true, true); - _current_state->active = true; - - EngineRunning (); // emit a signal -} - - -void -EngineStateController::_on_engine_stopped () -{ - EngineStopped (); -} - - -void -EngineStateController::_on_engine_halted () -{ - EngineHalted (); -} - - -void -EngineStateController::_on_device_error () -{ - set_new_device_as_current ("None"); - push_current_state_to_backend (true); - DeviceListChanged (false); - DeviceError (); -} - - -void -EngineStateController::_on_parameter_changed (const std::string& parameter_name) -{ - if (parameter_name == "output-auto-connect") { - - AudioEngine::instance ()->reconnect_session_routes (false, true); - OutputConfigChanged (); // emit a signal - OutputConnectionModeChanged (); // emit signal - } -} - - -void -EngineStateController::_on_ports_registration_update () -{ - _update_device_channels_state (); - - // update MIDI connections - if (_session) { - _session->reconnect_midi_scene_ports (true); - _session->reconnect_midi_scene_ports (false); - - _session->reconnect_mtc_ports (); - - _session->reconnect_mmc_ports (true); - _session->reconnect_mmc_ports (false); - - _session->reconnect_ltc_input (); - _session->reconnect_ltc_output (); - } - - _update_ltc_source_port (); - _update_ltc_output_port (); - - PortRegistrationChanged (); // emit a signal -} - - -bool -EngineStateController::push_current_state_to_backend (bool start) -{ - boost::shared_ptr<AudioBackend> backend = AudioEngine::instance ()->current_backend (); - - if (!backend) { - return false; - } - - // check if anything changed - bool state_changed = (_current_state->device_name != backend->device_name ()) || - (_current_state->sample_rate != backend->sample_rate ()) || - (_current_state->buffer_size != backend->buffer_size ()); - - bool was_running = AudioEngine::instance ()->running (); - - Glib::Threads::RecMutex::Lock sl (AudioEngine::instance ()->state_lock ()); - if (state_changed) { - - if (was_running) { - - if (_current_state->device_name != backend->device_name ()) { - // device has been changed - // the list of ports has been changed too - // current ltc_source_port and ltc_output_port aren't available - set_ltc_source_port (""); - set_ltc_output_port (""); - } - - if (AudioEngine::instance ()->stop ()) { - return false; - } - } - - int result = 0; - { - std::cout << "EngineStateController::Setting device: " << _current_state->device_name << std::endl; - if ((_current_state->device_name != backend->device_name ()) && (result = backend->set_device_name (_current_state->device_name))) { - error << string_compose (_("Cannot set device name to %1"), get_current_device_name ()) << endmsg; - } - - if (!result ) { - std::cout << "EngineStateController::Setting device sample rate " << _current_state->sample_rate << std::endl; - result = backend->set_sample_rate (_current_state->sample_rate); - - if (result) { - error << string_compose (_("Cannot set sample rate to %1"), get_current_sample_rate ()) << endmsg; - } - } - - if (!result ) { - std::cout << "EngineStateController::Setting device buffer size " << _current_state->buffer_size << std::endl; - result = backend->set_buffer_size (_current_state->buffer_size); - - if (result) { - error << string_compose (_("Cannot set buffer size to %1"), get_current_buffer_size ()) << endmsg; - } - } - } - - if (result) // error during device setup - { - //switch to None device and notify about the issue - set_new_device_as_current ("None"); - DeviceListChanged (false); - DeviceError (); - } - - if (AudioEngine::instance ()->backend_reset_requested ()) { - // device asked for reset, do not start engine now - // free sate lock and let Engine reset the device as it's required - return true; - } - } - - if (start || (was_running && state_changed)) { - if (AudioEngine::instance ()->start () && !AudioEngine::instance ()->is_reset_requested ()) { - //switch to None device and notify about the issue - set_new_device_as_current ("None"); - AudioEngine::instance ()->start (); - DeviceListChanged (false); - DeviceError (); - return false; - } - } - - save_audio_midi_settings (); - - return true; -} - - -std::string -EngineStateController::get_mtc_source_port () -{ - MidiPortStateList::const_iterator state_iter = _midi_inputs.begin (); - for (; state_iter != _midi_inputs.end (); ++state_iter) { - if (state_iter->available && state_iter->mtc_in) { - return (state_iter->name); - } - } - - return ""; -} - -void -EngineStateController::set_ltc_source_port (const std::string& port) -{ - Config->set_ltc_source_port (port); -} - -std::string -EngineStateController::get_ltc_source_port () -{ - return Config->get_ltc_source_port (); -} - -void -EngineStateController::set_ltc_output_port (const std::string& port) -{ - Config->set_ltc_output_port (port); -} - -std::string -EngineStateController::get_ltc_output_port () -{ - return Config->get_ltc_output_port (); -} - |