internal static DMPLayer Parse(BigEndianBinaryReader buffer)
{
Int16 flagsAndDMPLength = buffer.ReadInt16();
byte vector3 = buffer.ReadByte();
Debug.Assert(vector3 == DMP_VECTOR);
byte addressTypeAndDataType = buffer.ReadByte();
Debug.Assert(addressTypeAndDataType == ADDRESS_TYPE_AND_DATA_TYPE);
Int16 firstPropertyAddress = buffer.ReadInt16();
Debug.Assert(firstPropertyAddress == FIRST_PROPERTY_ADDRESS);
Int16 addressIncrement = buffer.ReadInt16();
Debug.Assert(addressIncrement == ADDRESS_INCREMENT);
Int16 propertyValueCount = buffer.ReadInt16();
byte startCode = buffer.ReadByte();
byte[] properties = buffer.ReadBytes(propertyValueCount - 1);
var dmpLayer = new DMPLayer(properties);
return(dmpLayer);
}
internal static FramingLayer Parse(BigEndianBinaryReader buffer)
{
UInt16 flagsAndFramingLength = (UInt16)buffer.ReadInt16();
UInt16 flags = (UInt16)(flagsAndFramingLength & SACNPacket.FIRST_FOUR_BITS_MASK);
Debug.Assert(flags == SACNPacket.FLAGS);
UInt16 length = (UInt16)(flagsAndFramingLength & SACNPacket.LAST_TWELVE_BITS_MASK);
Int32 vector2 = buffer.ReadInt32();
Debug.Assert(vector2 == FRAMING_VECTOR);
byte[] sourceNameBytes = buffer.ReadBytes(64);
string sourceName = new string(Encoding.UTF8.GetChars(sourceNameBytes)).TrimEnd('\0');
byte priority = buffer.ReadByte();
Int16 reserved = buffer.ReadInt16();
Debug.Assert(reserved == RESERVED);
byte sequenceID = buffer.ReadByte();
byte options = buffer.ReadByte();
UInt16 universeID = buffer.ReadUInt16();
FramingLayer framingLayer = new FramingLayer()
{
SourceName = sourceName,
Priority = priority,
SequenceID = sequenceID,
Options = FramingOptions.Parse(options),
UniverseID = universeID,
DMPLayer = DMPLayer.Parse(buffer)
};
return(framingLayer);
}
public FramingLayer(string sourceName, UInt16 universeID, byte sequenceID, byte[] data, byte priority)
{
SourceName = sourceName;
UniverseID = universeID;
SequenceID = sequenceID;
Options = new FramingOptions();
DMPLayer = new DMPLayer(data);
Priority = priority;
}
public byte[] ToArray()
{
using (var stream = new MemoryStream(Length))
using (var buffer = new BigEndianBinaryWriter(stream))
{
UInt16 flagsAndFramingLength = (UInt16)(SACNPacket.FLAGS | Length);
buffer.Write(flagsAndFramingLength);
buffer.Write(FRAMING_VECTOR);
buffer.Write(Encoding.UTF8.GetBytes(SourceName));
buffer.Write(Enumerable.Repeat((byte)0, 64 - SourceName.Length).ToArray());
buffer.Write(Priority);
buffer.Write(RESERVED);
buffer.Write(SequenceID);
buffer.Write(Options.GetByte());
buffer.Write(UniverseID);
buffer.Write(DMPLayer.ToArray());
return(stream.ToArray());
}
}
