/// <summary>
/// Create a DataCompressedDvcPdu
/// </summary>
/// <param name="channelId"></param>
/// <param name="data"></param>
/// <returns></returns>
public DataCompressedDvcPdu[] CreateCompressedDataPdu(uint channelId, byte[] data)
{
MemoryStream ms = new MemoryStream(data);
List <DataCompressedDvcPdu> pdus = new List <DataCompressedDvcPdu>();
byte[] compressed = CompressDataToRdp8BulkEncodedData(data, PACKET_COMPR_FLAG.PACKET_COMPR_TYPE_LITE | PACKET_COMPR_FLAG.PACKET_COMPRESSED);
DataCompressedDvcPdu pdu = new DataCompressedDvcPdu();
pdu.HeaderBits.Cmd = Cmd_Values.DataCompressed;
pdu.HeaderBits.Sp = 0x0;
pdu.HeaderBits.CbChannelId = cbChId_Values.OneByte;
pdu.ChannelId = channelId;
RDP_SEGMENTED_DATA rdpSegmentedData = new RDP_SEGMENTED_DATA();
rdpSegmentedData.descriptor = DescriptorTypes.SINGLE;
RDP8_BULK_ENCODED_DATA rdp8BulkEncodedData = new RDP8_BULK_ENCODED_DATA();
rdp8BulkEncodedData.header = (byte)(PACKET_COMPR_FLAG.PACKET_COMPR_TYPE_LITE | PACKET_COMPR_FLAG.PACKET_COMPRESSED);
rdp8BulkEncodedData.data = compressed;
pdu.Data = PduMarshaler.Marshal(rdpSegmentedData);
pdus.Add(pdu);
return(pdus.ToArray());
}
public uint segmentPartSize; // The pure data size in a single RDP8_BULK_ENCODED_DATA structure
#endregion variables
/// <summary>
/// Contructor.
/// </summary>
/// <param name="descType"> Indicates if a single or multipart segment PDU.</param>
/// <param name="compFlag">Indicates the data is compressed and the compress type.</param>
public RdpSegmentedPdu(byte compFlag, uint segSize)
{
compressFlag = compFlag;
segmentPartSize = segSize;
segHeadList = new List <RDP_SEGMENTED_DATA>();
segPduList = new List <byte[]>();
segHeader = new RDP_SEGMENTED_DATA();
}
public List<byte[]> segPduList; // List of segment PDU, include segment header.
#endregion Fields
#region Constructors
/// <summary>
/// Contructor.
/// </summary>
/// <param name="descType"> Indicates if a single or multipart segment PDU.</param>
/// <param name="compFlag">Indicates the data is compressed and the compress type.</param>
public RdpSegmentedPdu(byte compFlag, uint segSize)
{
compressFlag = compFlag;
segmentPartSize = segSize;
segHeadList = new List<RDP_SEGMENTED_DATA>();
segPduList = new List<byte[]>();
segHeader = new RDP_SEGMENTED_DATA();
}
/// <summary>
/// Process DVC Data
/// </summary>
/// <param name="pdu"></param>
private void ProcessDataPdu(DataDvcBasePdu pdu)
{
if (pdu is DataFirstDvcPdu)
{
dataFragmentManager = new DataFragmentManager();
DataFirstDvcPdu first = (DataFirstDvcPdu)pdu;
dataFragmentManager.AddFirstData(first.Length, first.Data);
}
else if (pdu is DataDvcPdu)
{
if (dataFragmentManager == null)
{
// Single data PDU which is not fragmented.
if (this.Received != null)
{
this.Received(pdu.Data, this.ChannelId);
}
return;
}
else
{
// Received a fragment.
dataFragmentManager.AppendData(pdu.Data);
}
}
else if (pdu is DataCompressedDvcPdu)
{
CompressFactory Compressor = new CompressFactory();
if (dataFragmentManager == null)
{
RDP_SEGMENTED_DATA segData = new RDP_SEGMENTED_DATA();
bool fResult = PduMarshaler.Unmarshal(pdu.Data, segData);
if (fResult)
{
if (segData.descriptor == DescriptorTypes.SINGLE)
{
byte[] rawData = Compressor.Decompress(segData.bulkData.data, segData.bulkData.header);
// Single data PDU which is not fragmented.
if (this.Received != null)
{
this.Received(rawData, this.ChannelId);
}
return;
}
}
}
else
{
// Received a fragment.
dataFragmentManager.AppendData(pdu.Data);
}
}
if (dataFragmentManager.Completed)
{
if (this.Received != null)
{
this.Received(dataFragmentManager.Data, this.ChannelId);
}
dataFragmentManager = null;
}
}