// Activate starts event processing loops and calls jack_activate.
func (this *Client) Activate() error {
if err := this.startGenericCallbackSync(); err != nil {
return err
} else if err := this.startProcessCallbackSync(); err != nil {
return err
} else if result := C.jack_activate(this.jackClient); result != 0 {
return errors.New("jack_activate returned " + strconv.Itoa(int(result)) + " for client '" + this.GetName() + "'")
} else {
return nil
}
}
// New: Create a new jack client with the given name and the given number
// of input and output ports.
func New(name string, numInputs, numOutputs int) (*JackClient, error) {
jc := new(JackClient)
jc.name = name
// Create jack client.
jc.client = C.wrap_jack_client_open(C.CString(name))
if jc.client == nil {
return nil, errors.New("Failed to initialize jack client.")
}
// Create ports.
for i := 0; i < numInputs; i++ {
port := C.jack_port_register(
jc.client,
C.CString(fmt.Sprintf("in_%d", i)),
C.CString(C.JACK_DEFAULT_AUDIO_TYPE),
C.JackPortIsInput, 0)
jc.jackIn = append(jc.jackIn, port)
}
for i := 0; i < numOutputs; i++ {
port := C.jack_port_register(
jc.client,
C.CString(fmt.Sprintf("out_%d", i)),
C.CString(C.JACK_DEFAULT_AUDIO_TYPE),
C.JackPortIsOutput, 0)
jc.jackOut = append(jc.jackOut, port)
}
// Create buffers.
jc.bufIn = make([][]float32, numInputs)
jc.bufOut = make([][]float32, numOutputs)
// Register jack callback.
C.register_callback(jc.client, unsafe.Pointer(jc))
C.jack_activate(jc.client)
// Done.
return jc, nil
}
func (client *Client) Activate() int {
return int(C.jack_activate(client.handler))
}