public void SendBackgroundRdm(RdmPacket packet)
{
if (!IsTcpConnectionAlive())
{
throw new InvalidOperationException("No healthy TCP connection exists for RDMNet broadcast.");
}
//Fill in addition details
packet.Header.SourceId = RdmSourceId;
packet.Header.DestinationId = UId.Broadcast;
//Create Rdm Packet
MemoryStream rdmData = new MemoryStream();
RdmBinaryWriter rdmWriter = new RdmBinaryWriter(rdmData);
//Write the RDM sub-start code.
rdmWriter.Write((byte)RdmVersions.SubMessage);
//Write the RDM packet
RdmPacket.WritePacket(packet, rdmWriter);
//Write the checksum
rdmWriter.WriteNetwork((short)RdmPacket.CalculateChecksum(rdmData.GetBuffer()));
//Create sACN Packet
RdmNetPacket dmxPacket = new RdmNetPacket();
dmxPacket.Framing.SourceName = SourceName;
dmxPacket.Framing.EndpointID = (short)0;
dmxPacket.RdmNet.RdmData = rdmData.GetBuffer();
AliveTcpSocket.SendPacket(dmxPacket);
RaiseRdmPacketSent(new NewPacketEventArgs <RdmPacket>(null, packet));
}
/// <summary>
/// Processes the packet that have been recieved and allocated to this filter.
/// </summary>
/// <param name="source">The source IP address of the packet.</param>
/// <param name="header">The header information for the ACN packet.</param>
/// <param name="data">The data reader for the remaining packet data.</param>
/// <remarks>
/// Only packets that have supported protocol ID's will be sent to this function.
/// </remarks>
void IProtocolFilter.ProcessPacket(IPEndPoint source, AcnRootLayer header, AcnBinaryReader data)
{
RdmNetPacket newPacket = AcnPacket.ReadPacket(header, data) as RdmNetPacket;
if (newPacket != null)
{
RdmBinaryReader dmxReader = new RdmBinaryReader(new MemoryStream(newPacket.RdmNet.RdmData));
//Skip Start Code and sub-start code
dmxReader.BaseStream.Seek(1, SeekOrigin.Begin);
RdmPacket rdmPacket = RdmPacket.ReadPacket(dmxReader);
RaiseNewRdmPacket(new RdmEndPoint(source, newPacket.Framing.EndpointID), rdmPacket);
}
}
public void SendRdm(RdmPacket packet, RdmEndPoint targetAddress, UId targetId, UId sourceId)
{
if (BlockRDM)
{
return;
}
//Fill in addition details
packet.Header.SourceId = sourceId;
packet.Header.DestinationId = targetId;
SubDeviceUId id = targetId as SubDeviceUId;
if (id != null)
{
packet.Header.SubDevice = id.SubDeviceId;
}
//Create Rdm Packet
MemoryStream rdmData = new MemoryStream();
RdmBinaryWriter rdmWriter = new RdmBinaryWriter(rdmData);
//Write the RDM sub-start code.
rdmWriter.Write((byte)RdmVersions.SubMessage);
//Write the RDM packet
RdmPacket.WritePacket(packet, rdmWriter);
//Write the checksum
rdmWriter.WriteNetwork((short)RdmPacket.CalculateChecksum(rdmData.GetBuffer()) + (byte)DmxStartCodes.RDM);
//Create sACN Packet
RdmNetPacket dmxPacket = new RdmNetPacket();
dmxPacket.Framing.SourceName = SourceName;
dmxPacket.Framing.EndpointID = (short)targetAddress.Universe;
dmxPacket.RdmNet.RdmData = rdmData.GetBuffer();
SendPacket(dmxPacket, targetAddress);
RaiseRdmPacketSent(new NewPacketEventArgs <RdmPacket>(targetAddress, packet));
}
