public int[] GetKnobNumbers(MidiChannel channel)
{
MidiDriver.Refresh();
var cs = _channelArray[(int)channel];
var numbers = new int[cs._knobMap.Count];
cs._knobMap.Keys.CopyTo(numbers, 0);
return(numbers);
}
public int GetSysex(MidiSysex id)
{
MidiDriver.Refresh();
int index = (int)id;
if (index >= _sysexMem.Length)
{
return(0);
}
return(_sysexMem[index]);
}
public float GetKey(MidiChannel channel, int noteNumber)
{
MidiDriver.Refresh();
var v = _channelArray[(int)channel]._noteArray[noteNumber];
if (v > 1)
{
return(v - 1);
}
if (v > 0)
{
return(v);
}
return(0.0f);
}
public float GetKnob(MidiChannel channel, int knobNumber, float defaultValue)
{
MidiDriver.Refresh();
var cs = _channelArray[(int)channel];
if (_midiMap)
{
knobNumber = _midiMap.JackValue(knobNumber);
}
if (cs._knobMap.ContainsKey(knobNumber))
{
return(cs._knobMap[knobNumber]);
}
return(defaultValue);
}
void Update()
{
Refresh();
// Update the note state array.
foreach (var cs in _channelArray)
{
for (var i = 0; i < 128; i++)
{
var x = cs._noteArray[i];
if (x > 1)
{
cs._noteArray[i] = x - 1; // Key down -> Hold.
}
else if (x < 0)
{
cs._noteArray[i] = 0; // Key up -> Off.
}
}
}
MidiDriver.Refresh();
// Process the message queue.
while (true)
{
if (msgQueue.Count == 0)
{
break;
}
// Pop from the queue.
MidiMessage message = msgQueue.Dequeue();
// Split the first byte.
var statusCode = message.status >> 4;
var channelNumber = message.status & 0xf;
// Note on message?
if (statusCode == 9)
{
var velocity = 1.0f / 127 * message.data2 + 1;
_channelArray[channelNumber]._noteArray[message.data1] = velocity;
_channelArray[(int)MidiChannel.All]._noteArray[message.data1] = velocity;
if (noteOnDelegate != null)
{
noteOnDelegate((MidiChannel)channelNumber, message.data1, velocity - 1);
}
}
// Note off message?
if (statusCode == 8 || (statusCode == 9 && message.data2 == 0))
{
_channelArray[channelNumber]._noteArray[message.data1] = -1;
_channelArray[(int)MidiChannel.All]._noteArray[message.data1] = -1;
if (noteOffDelegate != null)
{
noteOffDelegate((MidiChannel)channelNumber, message.data1);
}
}
// CC message?
if (statusCode == 0xb)
{
// Normalize the value.
var level = 1.0f / 127 * message.data2;
// Update the channel if it already exists, or add a new channel.
int knobNumber = message.data1;
if (_midiMap)
{
knobNumber = _midiMap.JackValue(knobNumber);
}
_channelArray[channelNumber]._knobMap[knobNumber] = level;
// Do again for All-ch.
_channelArray[(int)MidiChannel.All]._knobMap[knobNumber] = level;
if (knobDelegate != null)
{
knobDelegate((MidiChannel)channelNumber, knobNumber, level);
}
}
// System message?
if (statusCode == 0xf)
{
if (channelNumber == 0)
{
if (message.data1 >= _sysexMem.Length)
{
return;
}
_sysexMem[message.data1] = message.data2;
if (sysexDelegate != null)
{
sysexDelegate((MidiSysex)message.data1, message.data2);
}
}
else
{
if (message.status == (byte)MidiRealtime.Clock)
{
if (realtimeDelegate != null)
{
realtimeDelegate(MidiRealtime.Clock);
}
}
if (message.status == (byte)MidiRealtime.Start)
{
_isPlaying = true;
if (realtimeDelegate != null)
{
realtimeDelegate(MidiRealtime.Start);
}
}
if (message.status == (byte)MidiRealtime.Continue)
{
_isPlaying = true;
if (realtimeDelegate != null)
{
realtimeDelegate(MidiRealtime.Continue);
}
}
if (message.status == (byte)MidiRealtime.Stop)
{
_isPlaying = false;
if (realtimeDelegate != null)
{
realtimeDelegate(MidiRealtime.Stop);
}
}
}
}
}
}
public bool IsPlaying()
{
MidiDriver.Refresh();
return(_isPlaying);
}
public bool GetKeyUp(MidiChannel channel, int noteNumber)
{
MidiDriver.Refresh();
return(_channelArray[(int)channel]._noteArray[noteNumber] < 0);
}