public AlsaPortInfo Clone()
{
var ret = new AlsaPortInfo();
Natives.snd_seq_port_info_copy(ret.Handle, Handle);
return(ret);
}
// app generates messages --> [RETURNED PORT] --> [output device port]
public AlsaPortInfo CreateOutputConnectedPort(AlsaPortInfo pinfo, string portName = "alsa-sharp output")
{
var portId = output.CreateSimplePort(portName, output_connected_cap, midi_port_type);
var sub = new AlsaPortSubscription();
sub.Sender.Client = (byte)output_client_id;
sub.Sender.Port = (byte)portId;
sub.Destination.Client = (byte)pinfo.Client;
sub.Destination.Port = (byte)pinfo.Port;
output.SubscribePort(sub);
return(output.GetPort(sub.Sender.Client, sub.Sender.Port));
}
IEnumerable <AlsaPortInfo> EnumerateMatchingPorts(AlsaSequencer seq, AlsaPortCapabilities cap)
{
var cinfo = new AlsaClientInfo {
Client = -1
};
while (seq.QueryNextClient(cinfo))
{
var pinfo = new AlsaPortInfo {
Client = cinfo.Client, Port = -1
};
while (seq.QueryNextPort(pinfo))
{
if ((pinfo.PortType & midi_port_type) != 0 &&
(pinfo.Capabilities & cap) == cap)
{
yield return(pinfo.Clone());
}
}
}
}