// return 0: ok
// return 1: cannot activate client
// return 2: cannot connect output port
// return 3: Jack server not running
// return 4: output port = NULL
int JackOutput::connect()
{
INFOLOG( "connect" );
if ( jack_activate ( client ) ) {
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_ACTIVATE_CLIENT );
return 1;
}
bool connect_output_ports = m_bConnectOutFlag;
memset( track_output_ports_L, 0, sizeof(track_output_ports_L) );
memset( track_output_ports_R, 0, sizeof(track_output_ports_R) );
#ifdef H2CORE_HAVE_LASH
if ( Preferences::get_instance()->useLash() ){
LashClient* lashClient = LashClient::get_instance();
if (lashClient && lashClient->isConnected())
{
// infoLog("[LASH] Sending Jack client name to LASH server");
lashClient->sendJackClientName();
if (!lashClient->isNewProject())
{
connect_output_ports = false;
}
}
}
#endif
if ( connect_output_ports ) {
// if ( m_bConnectOutFlag ) {
// connect the ports
if ( jack_connect( client, jack_port_name( output_port_1 ), output_port_name_1.toLocal8Bit() ) == 0 &&
jack_connect ( client, jack_port_name( output_port_2 ), output_port_name_2.toLocal8Bit() ) == 0 ) {
return 0;
}
INFOLOG( "Could not connect so saved out-ports. Connecting to first pair of in-ports" );
const char ** portnames = jack_get_ports ( client, NULL, NULL, JackPortIsInput );
if ( !portnames || !portnames[0] || !portnames[1] ) {
ERRORLOG( "Could't locate two Jack input port" );
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_CONNECT_OUTPUT_PORT );
return 2;
}
if ( jack_connect( client, jack_port_name( output_port_1 ), portnames[0] ) != 0 ||
jack_connect( client, jack_port_name( output_port_2 ), portnames[1] ) != 0 ) {
ERRORLOG( "Could't connect to first pair of Jack input ports" );
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_CONNECT_OUTPUT_PORT );
return 2;
}
free( portnames );
}
return 0;
}
// return 0: ok
// return 1: cannot activate client
// return 2: cannot connect output port
int JackAudioDriver::connect()
{
INFOLOG( "connect" );
// The `jack_activate' function is defined in the jack/jack.h
// header files and tells the JACK server that the program is
// ready to start processing audio. It returns 0 on success
// and a non-zero error code otherwise.
if ( jack_activate( m_pClient ) ) {
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_ACTIVATE_CLIENT );
return 1;
}
bool connect_output_ports = m_bConnectOutFlag;
memset( track_output_ports_L, 0, sizeof(track_output_ports_L) );
memset( track_output_ports_R, 0, sizeof(track_output_ports_R) );
#ifdef H2CORE_HAVE_LASH
if ( Preferences::get_instance()->useLash() ){
LashClient* lashClient = LashClient::get_instance();
if (lashClient && lashClient->isConnected()){
// INFOLOG( "[LASH] Sending JACK client name to LASH server" );
lashClient->sendJackClientName();
if (!lashClient->isNewProject()){
connect_output_ports = false;
}
}
}
#endif
if ( connect_output_ports ) {
// Connect the ports.
// The `jack_connect' function is defined in the
// jack/jack.h file. It establishes a connection between
// two ports. When a connection exists, data written
// to the source port will be available to be read at
// the destination port. Returns 0 on success, exits
// if the connection is already made, and returns a
// non-zero error code otherwise.
// Syntax: jack_connect( jack_client_t jack_client,
// const char *source_port )
// const char *destination_port
// )
// The `jack_port_name' function is also defined in
// the jack/jack.h header returns the full name of a
// provided port of type jack_port_t.
if ( jack_connect( m_pClient, jack_port_name( output_port_1 ),
output_port_name_1.toLocal8Bit() ) == 0 &&
jack_connect( m_pClient, jack_port_name( output_port_2 ),
output_port_name_2.toLocal8Bit() ) == 0 ) {
return 0;
}
INFOLOG( "Could not connect to the saved output ports. Connect to the first pair of input ports instead." );
// The `jack_get_ports' is defined in the jack/jack.h
// header file and performs a lookup of ports of the
// JACK server based on their e.g. flags. It returns a
// NULL-terminated array of ports that match the
// specified arguments. The caller is responsible for
// calling jack_free() any non-NULL returned
// value.
const char ** portnames = jack_get_ports( m_pClient, NULL, NULL, JackPortIsInput );
if ( !portnames || !portnames[0] || !portnames[1] ) {
ERRORLOG( "Couldn't locate two Jack input ports" );
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_CONNECT_OUTPUT_PORT );
return 2;
}
if ( jack_connect( m_pClient, jack_port_name( output_port_1 ),
portnames[0] ) != 0 ||
jack_connect( m_pClient, jack_port_name( output_port_2 ),
portnames[1] ) != 0 ) {
ERRORLOG( "Couldn't connect to first pair of Jack input ports" );
Hydrogen::get_instance()->raiseError( Hydrogen::JACK_CANNOT_CONNECT_OUTPUT_PORT );
return 2;
}
free( portnames );
}
return 0;
}