89 lines
No EOL
2.5 KiB
C#
89 lines
No EOL
2.5 KiB
C#
using System;
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using UnityEngine.Events;
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namespace cylvester
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{
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[Serializable]
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public class UnityMidiEvent : UnityEvent<MidiMessage>
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{}
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public struct MidiMessage
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{
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public byte Status;
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public byte Data1;
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public byte Data2;
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public override string ToString()
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{
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var statusStr = Status.ToString();
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var data1Str = Data1.ToString();
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var data2Str = Data2.ToString();
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return statusStr + " " +data1Str + " " +data2Str;
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}
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}
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public interface IMidiParser : IDisposable
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{
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event Action<MidiMessage> MidiMessageReceived;
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event Action MidiClockReceived;
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}
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public class MidiParser : IMidiParser
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{
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private enum Accept
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{
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StatusByte,
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DataByte1,
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DataByte2
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}
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private MidiMessage message_;
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private Accept accept_ = Accept.StatusByte;
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private readonly IPdReceiver pdReceiver_;
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private readonly Action<byte[]> onDataReceived_;
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private static byte MIDI_CLOCK = 248;
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public MidiParser(IPdReceiver pdReceiver)
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{
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pdReceiver_ = pdReceiver;
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onDataReceived_ = (bytes) =>
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{
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foreach (var element in bytes)
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{
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if (element == MIDI_CLOCK)
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MidiClockReceived?.Invoke();
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if (element >= 128)
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{
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message_ = new MidiMessage {Status = element};
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accept_ = Accept.DataByte1;
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continue;
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}
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if (accept_ == Accept.DataByte1 && element <= 128)
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{
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message_.Data1 = element;
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accept_ = Accept.DataByte2;
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}
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else if (accept_ == Accept.DataByte2 && element <= 128)
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{
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message_.Data2 = element;
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MidiMessageReceived?.Invoke(message_);
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accept_ = Accept.StatusByte;
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}
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}
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};
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pdReceiver_.DataReceived += onDataReceived_;
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}
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public void Dispose()
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{
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pdReceiver_.DataReceived -= onDataReceived_;
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}
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public event Action<MidiMessage> MidiMessageReceived;
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public event Action MidiClockReceived;
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}
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} |