chore: Finished updating messages to support input

src/Uno.UWP/Devices/Midi/Internal/MidiHelpers.cs

@@ -16,6 +16,16 @@ internal static byte GetChannel(byte firstMessageByte)
 			return (byte)(firstMessageByte & 0b0000_1111);
 		}
 
+		internal static byte GetFrame(byte frameByte)
+		{
+			return (byte)(frameByte & 0b1111_0000);
+		}
+
+		internal static byte GetFrameValues(byte frameByte)
+		{
+			return (byte)(frameByte & 0b0000_1111);
+		}
+
 		/// <summary>
 		/// Returns the MIDI bend value from two bytes in message.
 		/// </summary>

src/Uno.UWP/Devices/Midi/Internal/MidiMessageParameter.cs

@@ -8,12 +8,17 @@ namespace Uno.Devices.Midi.Internal
 {
     internal enum MidiMessageParameter
     {
+		Frame = 7,
+		FrameValues = 15,
         Channel = 15,
 		Velocity = 127,
 		Pressure = 127,
 		Note = 127,
 		Controller = 127,
-		Control = 127,
-		Bend = 16383
+		ControlValue = 127,
+		Program = 127,
+		Song = 127,
+		Bend = 16383,
+		Beats = 16383,
     }
 }

src/Uno.UWP/Devices/Midi/MidiChannelPressureMessage.cs

@@ -17,12 +17,15 @@ public partial class MidiChannelPressureMessage : IMidiMessage
 		/// <param name="channel">The channel from 0-15 that this message applies to.</param>
 		/// <param name="pressure">The pressure from 0-127.</param>
 		public MidiChannelPressureMessage(byte channel, byte pressure)
-			: this(new byte[]
+		{
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(pressure, MidiMessageParameter.Pressure);
+
+			_buffer = new InMemoryBuffer(new byte[]
 			{
-				(byte)((byte)MidiMessageType.ChannelPressure | channel),
+				(byte)((byte)Type | channel),
 				pressure
-			})
-		{			
+			});
 		}
 
 		internal MidiChannelPressureMessage(byte[] rawData)

src/Uno.UWP/Devices/Midi/MidiControlChangeMessage.cs

@@ -18,13 +18,17 @@ public partial class MidiControlChangeMessage : IMidiMessage
 		/// <param name="controller">The controller from 0-127 to receive this message.</param>
 		/// <param name="controlValue">The value from 0-127 to apply to the controller.</param>
 		public MidiControlChangeMessage(byte channel, byte controller, byte controlValue)
-			: this(new byte[]
+		{
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(controller, MidiMessageParameter.Controller);
+			MidiMessageValidators.VerifyRange(controlValue, MidiMessageParameter.ControlValue);
+
+			_buffer = new InMemoryBuffer(new byte[]
 			{
 				(byte)((byte)MidiMessageType.ControlChange | channel),
 				controller,
 				controlValue
-			})
-		{
+			});
 		}
 
 		internal MidiControlChangeMessage(byte[] rawData)
@@ -33,7 +37,7 @@ internal MidiControlChangeMessage(byte[] rawData)
 			MidiMessageValidators.VerifyMessageType(rawData[0], MidiMessageType.ControlChange);
 			MidiMessageValidators.VerifyRange(MidiHelpers.GetChannel(rawData[0]), MidiMessageParameter.Channel);
 			MidiMessageValidators.VerifyRange(rawData[1], MidiMessageParameter.Controller);
-			MidiMessageValidators.VerifyRange(rawData[2], MidiMessageParameter.Control);
+			MidiMessageValidators.VerifyRange(rawData[2], MidiMessageParameter.ControlValue);
 
 			_buffer = new InMemoryBuffer(rawData);
 		}

src/Uno.UWP/Devices/Midi/MidiNoteOffMessage.cs

@@ -18,12 +18,16 @@ public partial class MidiNoteOffMessage : IMidiMessage
 		/// <param name="note">The note which is specified as a value from 0-127.</param>
 		/// <param name="velocity">The velocity which is specified as a value from 0-127.</param>
 		public MidiNoteOffMessage(byte channel, byte note, byte velocity)
-			: this(new byte[] {
-				(byte)((byte)MidiMessageType.NoteOff| channel),
+		{
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(note, MidiMessageParameter.Note);
+			MidiMessageValidators.VerifyRange(velocity, MidiMessageParameter.Velocity);
+
+			_buffer = new InMemoryBuffer(new byte[] {
+				(byte)((byte)Type | channel),
 				note,
 				velocity
-			})
-		{
+			});
 		}
 
 		internal MidiNoteOffMessage(byte[] rawData)

src/Uno.UWP/Devices/Midi/MidiNoteOnMessage.cs

@@ -17,14 +17,17 @@ public partial class MidiNoteOnMessage : IMidiMessage
 		/// <param name="channel">The channel from 0-15 that this message applies to.</param>
 		/// <param name="note">The note which is specified as a value from 0-127.</param>
 		/// <param name="velocity">The velocity which is specified as a value from 0-127.</param>
-		public MidiNoteOnMessage(byte channel, byte note, byte velocity)
-			: this(new byte[]
-			{
-				(byte)((byte)Type | Channel),
-				Note,
-				Velocity
-			})
-		{			
+		public MidiNoteOnMessage(byte channel, byte note, byte velocity)			
+		{
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(note, MidiMessageParameter.Note);
+			MidiMessageValidators.VerifyRange(velocity, MidiMessageParameter.Velocity);
+
+			_buffer = new InMemoryBuffer(new byte[] {
+				(byte)((byte)Type | channel),
+				note,
+				velocity
+			});
 		}
 
 		internal MidiNoteOnMessage(byte[] rawData)

src/Uno.UWP/Devices/Midi/MidiPitchBendChangeMessage.cs

@@ -17,13 +17,16 @@ public partial class MidiPitchBendChangeMessage : IMidiMessage
 		/// <param name="channel">Channel.</param>
 		/// <param name="bend">Bend.</param>
 		public MidiPitchBendChangeMessage(byte channel, ushort bend)
-			: this(new byte[]
+		{
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(bend, MidiMessageParameter.Bend);
+
+			_buffer = new InMemoryBuffer(new byte[]
 			{
-				(byte)((byte)MidiMessageType.PitchBendChange | channel),
+				(byte)((byte)Type | channel),
 				(byte)(bend & 0b0111_1111),
 				(byte)(bend >> 7)
-			})
-		{			
+			});
 		}
 
 		internal MidiPitchBendChangeMessage(byte[] rawData)

src/Uno.UWP/Devices/Midi/MidiPolyphonicKeyPressureMessage.cs

@@ -9,59 +9,68 @@ namespace Windows.Devices.Midi
 	/// </summary>
 	public partial class MidiPolyphonicKeyPressureMessage : IMidiMessage
 	{
+		private readonly InMemoryBuffer _buffer;
+
 		/// <summary>
 		/// Creates a new MidiPolyphonicKeyPressureMessage object.
 		/// </summary>
 		/// <param name="channel">The channel from 0-15 that this message applies to.</param>
 		/// <param name="note">The note which is specified as a value from 0-127.</param>
 		/// <param name="pressure">The polyphonic key pressure which is specified as a value from 0-127.</param>
-		public MidiPolyphonicKeyPressureMessage(byte channel, byte note, byte pressure)
+		public MidiPolyphonicKeyPressureMessage(byte channel, byte note, byte pressure)			
 		{
-			MidiMessageValidators.VerifyRange(channel, 15, nameof(channel));
-			MidiMessageValidators.VerifyRange(note, 127, nameof(note));
-			MidiMessageValidators.VerifyRange(pressure, 127, nameof(pressure));
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(note, MidiMessageParameter.Note);
+			MidiMessageValidators.VerifyRange(pressure, MidiMessageParameter.Pressure);
 
-			Channel = channel;
-			Note = note;
-			Pressure = pressure;
-			RawData = new InMemoryBuffer(new byte[]
+			_buffer = new InMemoryBuffer(new byte[]
 			{
-				(byte)((byte)Type | Channel),
-				Note,
-				Pressure
+				(byte)((byte)Type | channel),
+				note,
+				pressure
 			});
 		}
 
+		internal MidiPolyphonicKeyPressureMessage(byte[] rawData)
+		{
+			MidiMessageValidators.VerifyMessageLength(rawData, 3, Type);
+			MidiMessageValidators.VerifyMessageType(rawData[0], Type);
+			MidiMessageValidators.VerifyRange(MidiHelpers.GetChannel(rawData[0]), MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(rawData[1], MidiMessageParameter.Note);
+			MidiMessageValidators.VerifyRange(rawData[2], MidiMessageParameter.Pressure);
+
+			_buffer = new InMemoryBuffer(rawData);
+		}
+
 		/// <summary>
 		/// Gets the type of this MIDI message.
 		/// </summary>
 		public MidiMessageType Type => MidiMessageType.PolyphonicKeyPressure;
 
 		/// <summary>
-		/// Gets the array of bytes associated with the MIDI message, including status byte.
+		/// Gets the channel from 0-15 that this message applies to.
 		/// </summary>
-		public IBuffer RawData { get; }
+		public byte Channel => MidiHelpers.GetChannel(_buffer.Data[0]);
 
 		/// <summary>
-		/// Gets the duration from when the MidiInPort was created to the time the message was received.
-		/// For messages being sent to a MidiOutPort, this value has no meaning.
+		/// Gets the note which is specified as a value from 0-127.
 		/// </summary>
-		public TimeSpan Timestamp { get; }
+		public byte Note => _buffer.Data[1];
 
 		/// <summary>
-		/// Gets the channel from 0-15 that this message applies to.
+		/// Gets the polyphonic key pressure which is specified as a value from 0-127.
 		/// </summary>
-		public byte Channel { get; }
+		public byte Pressure => _buffer.Data[2];
 
 		/// <summary>
-		/// Gets the note which is specified as a value from 0-127.
+		/// Gets the array of bytes associated with the MIDI message, including status byte.
 		/// </summary>
-		public byte Note { get; }
+		public IBuffer RawData => _buffer;
 
 		/// <summary>
-		/// Gets the polyphonic key pressure which is specified as a value from 0-127.
+		/// Gets the duration from when the MidiInPort was created to the time the message was received.
+		/// For messages being sent to a MidiOutPort, this value has no meaning.
 		/// </summary>
-		public byte Pressure { get; }		
-
+		public TimeSpan Timestamp { get; internal set; } = TimeSpan.Zero;
 	}
 }

src/Uno.UWP/Devices/Midi/MidiProgramChangeMessage.cs

@@ -9,49 +9,59 @@ namespace Windows.Devices.Midi
 	/// </summary>
 	public partial class MidiProgramChangeMessage : IMidiMessage
 	{
+		private readonly InMemoryBuffer _buffer;
+
 		/// <summary>
 		/// Creates a new MidiProgramChangeMessage object.
 		/// </summary>
 		/// <param name="channel">The channel from 0-15 that this message applies to.</param>
 		/// <param name="program">The program to change from 0-127.</param>
-		public MidiProgramChangeMessage(byte channel, byte program)
+		public MidiProgramChangeMessage(byte channel, byte program)			
 		{
-			MidiMessageValidators.VerifyRange(channel, 15, nameof(channel));
-			MidiMessageValidators.VerifyRange(program, 127, nameof(program));
+			MidiMessageValidators.VerifyRange(channel, MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(program, MidiMessageParameter.Program);
 
-			Channel = channel;
-			Program = program;
-			RawData = new InMemoryBuffer(new byte[]
+			_buffer = new InMemoryBuffer(new byte[]
 			{
-				(byte)((byte)Type | Channel),
-				Program,
+				(byte)((byte)MidiMessageType.ProgramChange | channel),
+				program,
 			});
 		}
 
+		internal MidiProgramChangeMessage(byte[] rawData)
+		{
+			MidiMessageValidators.VerifyMessageLength(rawData, 2, Type);
+			MidiMessageValidators.VerifyMessageType(rawData[0], Type);
+			MidiMessageValidators.VerifyRange(MidiHelpers.GetChannel(rawData[0]), MidiMessageParameter.Channel);
+			MidiMessageValidators.VerifyRange(rawData[1], MidiMessageParameter.Program);
+
+			_buffer = new InMemoryBuffer(rawData);
+		}
+
 		/// <summary>
 		/// Gets the type of this MIDI message.
 		/// </summary>
 		public MidiMessageType Type => MidiMessageType.ProgramChange;
 
 		/// <summary>
-		/// Gets the array of bytes associated with the MIDI message, including status byte.
+		/// Gets the channel from 0-15 that this message applies to.
 		/// </summary>
-		public IBuffer RawData { get; }
+		public byte Channel => MidiHelpers.GetChannel(_buffer.Data[0]);
 
 		/// <summary>
-		/// Gets the duration from when the MidiInPort was created to the time the message was received.
-		/// For messages being sent to a MidiOutPort, this value has no meaning.
+		/// Gets the program to change from 0-127.
 		/// </summary>
-		public TimeSpan Timestamp { get; }
+		public byte Program => _buffer.Data[1];
 
 		/// <summary>
-		/// Gets the channel from 0-15 that this message applies to.
+		/// Gets the array of bytes associated with the MIDI message, including status byte.
 		/// </summary>
-		public byte Channel { get; }
+		public IBuffer RawData => _buffer;
 
 		/// <summary>
-		/// Gets the program to change from 0-127.
+		/// Gets the duration from when the MidiInPort was created to the time the message was received.
+		/// For messages being sent to a MidiOutPort, this value has no meaning.
 		/// </summary>
-		public byte Program { get; }
+		public TimeSpan Timestamp { get; internal set; } = TimeSpan.Zero;
 	}
 }

src/Uno.UWP/Devices/Midi/MidiSongPositionPointerMessage.cs

@@ -9,42 +9,52 @@ namespace Windows.Devices.Midi
 	/// </summary>
 	public partial class MidiSongPositionPointerMessage : IMidiMessage
 	{
+		private readonly InMemoryBuffer _buffer;
+
 		/// <summary>
 		/// Creates a new MidiSongPositionPointerMessage object.
 		/// </summary>
 		/// <param name="beats">The song position pointer encoded in a 14-bit value from 0-16383.</param>
 		public MidiSongPositionPointerMessage(ushort beats)
 		{
-			MidiMessageValidators.VerifyRange(beats, 16383, nameof(beats));
+			MidiMessageValidators.VerifyRange(beats, MidiMessageParameter.Beats);
 
-			Beats = beats;
-			RawData = new InMemoryBuffer(new byte[]
+			_buffer = new InMemoryBuffer(new byte[]
 			{
-				(byte)Type,
+				(byte)MidiMessageType.SongPositionPointer,
 				(byte)(beats & 0b0111_1111),
 				(byte)(beats >> 7)
 			});
 		}
 
+		internal MidiSongPositionPointerMessage(byte[] rawData)
+		{
+			MidiMessageValidators.VerifyMessageLength(rawData, 3, Type);
+			MidiMessageValidators.VerifyMessageType(rawData[0], Type);
+			MidiMessageValidators.VerifyRange(MidiHelpers.GetBeats(rawData[1], rawData[2]), MidiMessageParameter.Beats);
+
+			_buffer = new InMemoryBuffer(rawData);
+		}
+
 		/// <summary>
 		/// Gets the type of this MIDI message.
 		/// </summary>
 		public MidiMessageType Type => MidiMessageType.SongPositionPointer;
 
 		/// <summary>
-		/// Gets the array of bytes associated with the MIDI message, including status byte.
+		/// Gets the song position pointer encoded in a 14-bit value from 0-16383.
 		/// </summary>
-		public IBuffer RawData { get; }
+		public ushort Beats => MidiHelpers.GetBeats(_buffer.Data[1], _buffer.Data[2]);
 
 		/// <summary>
-		/// Gets the duration from when the MidiInPort was created to the time the message was received.
-		/// For messages being sent to a MidiOutPort, this value has no meaning.
+		/// Gets the array of bytes associated with the MIDI message, including status byte.
 		/// </summary>
-		public TimeSpan Timestamp { get; } = TimeSpan.Zero;
+		public IBuffer RawData => _buffer;
 
 		/// <summary>
-		/// Gets the song position pointer encoded in a 14-bit value from 0-16383.
+		/// Gets the duration from when the MidiInPort was created to the time the message was received.
+		/// For messages being sent to a MidiOutPort, this value has no meaning.
 		/// </summary>
-		public ushort Beats { get; }
+		public TimeSpan Timestamp { get; internal set; } = TimeSpan.Zero;
 	}
 }