/// <summary>
/// Returns all connected devices.
/// </summary>
protected override List <LPM.MidiDevice> GetDeviceList()
{
var ret = new List <LPM.MidiDevice>();
// grab all the input devices
for (var i = 0; i < MonoMac.CoreMidi.Midi.SourceCount; i++)
{
MidiEndpoint src = MidiEndpoint.GetSource(i);
var device = new LPM.MidiDevice();
device.ID = GetDeviceID(src);
device.Name = device.ID;
device.Direction = MidiDirection.Input;
ret.Add(device);
}
// grab all output devices, and combine devices that are
// already in the input list
for (var i = 0; i < MonoMac.CoreMidi.Midi.DestinationCount; i++)
{
MidiEndpoint dest = MidiEndpoint.GetDestination(i);
string outputID = GetDeviceID(dest);
// look for the same device in the inputs
LPM.MidiDevice inDevice = null;
foreach (var d in ret)
{
if (d.ID == outputID)
{
inDevice = d;
break;
}
}
// mark as IO device if found in input
if (inDevice != null)
{
inDevice.Direction = MidiDirection.IO;
}
// otherwise create a new output-only device
else
{
var device = new LPM.MidiDevice();
device.ID = outputID;
device.Name = outputID;
device.Direction = MidiDirection.Output;
ret.Add(device);
}
}
return(ret);
}
/// <summary>
/// Gets all MIDI resources needed to use the selected device.
/// </summary>
private void Acquire(LPM.MidiDevice device)
{
if (device != null)
{
// setup the input device
if (device.CanRead)
{
_inputEndpoint = null;
for (var i = 0; i < MonoMac.CoreMidi.Midi.SourceCount; i++)
{
MidiEndpoint dest = MidiEndpoint.GetSource(i);
if (GetDeviceID(dest) == device.ID)
{
_inputEndpoint = dest;
break;
}
}
if (_inputEndpoint == null)
{
throw new Exception("Could not find MIDI input device " + device.ID);
}
// setup the device
_inputPort.ConnectSource(_inputEndpoint);
// send all input events to Receive()
_inputPort.MessageReceived += (object sender, MidiPacketsEventArgs e) =>
{
for (var i = 0; i < e.Packets.Length; i++)
{
var packet = e.Packets[i];
var managedArray = new byte[packet.Length];
Marshal.Copy(packet.Bytes, managedArray, 0, packet.Length);
if (managedArray.Length >= 3)
{
MidiMessageType type;
int channel;
MidiHelpers.ParseTypeAndChannel(managedArray[0], out type, out channel);
Receive(new MidiMessage()
{
//Type = managedArray[0].GetMidiMessageType(),
//Channel = 0,
Type = type,
Channel = channel,
Pitch = (int)managedArray[1],
Velocity = (int)managedArray[2]
});
}
}
};
}
else
{
_inputEndpoint = null;
}
if (device.CanWrite)
{
_outputEndpoint = null;
for (var i = 0; i < MonoMac.CoreMidi.Midi.DestinationCount; i++)
{
MidiEndpoint dest = MidiEndpoint.GetDestination(i);
if (GetDeviceID(dest) == device.ID)
{
_outputEndpoint = dest;
break;
}
}
if (_outputEndpoint == null)
{
throw new Exception("Could not find MIDI output device " + device.ID);
}
}
else
{
_outputEndpoint = null;
}
}
}