public void Process(GLPBinaryPictureData picturePackage, NmeaConnection conn)
{
if (picturePackage == null)
{
throw new ArgumentNullException("Picture package is null.");
}
if (conn == null)
{
throw new ArgumentNullException("Connection is null.");
}
ISavePicture savePicture = new SavePicture();
string strPictureName = picturePackage.RTC.ToString("s", CultureInfo.InvariantCulture);
int iD = conn.Device.ID;
if (picturePackage.PackageIndex == 1)
{
long? lTrackDataID = null;
TrackPoint trackPoint = this.m_ResolvePosition(conn.Device.DeviceOwnerID, picturePackage.RTC);
if (trackPoint != null)
{
lTrackDataID = new long?(trackPoint.ID);
}
savePicture.NewPicture(picturePackage.RTC.ToString("s", CultureInfo.InvariantCulture), iD, picturePackage.RTC, lTrackDataID, (int)picturePackage.TotalPackages, 0, null);
}
savePicture.SavePictureData(strPictureName, iD, (int)picturePackage.PackageIndex, picturePackage.PictureData);
}
/// <summary>
/// Next report. Or null if there is none.
/// </summary>
/// <returns></returns>
public GLPBase NextReport()
{
GLPBase iBase = null;
bool sendAck = false;
if (m_bHeaderFound == false && m_cirBuf.UsedLength >= 14)
{
// Looking for header.
byte[] arrPackets = m_cirBuf.Peek(0, 14);
m_arrDeviceID = new byte[8];
// Device ID
Array.Copy(arrPackets, m_arrDeviceID, 8);
// Packet type
m_iPacketType = arrPackets[8];
// Packet count
m_iPacketCount = arrPackets[9];
// Firmware version
BitParser bp = new BitParser(2, true, false);
bp.WriteData(arrPackets, 10, 2);
int build = bp.ReadIntX(6);
int major = bp.ReadIntX(7);
int minor = bp.ReadIntX(3);
m_FirmwareVersion = minor + "." + major + "." + build;
ushort ackAndLength = BitConverter.ToUInt16(arrPackets, 12);
if ((ackAndLength & 0x8000) > 0)
{
sendAck = true;
}
else
{
sendAck = false;
}
m_iPacketLength = ackAndLength & (ushort)0x7FFF;
if (m_cirBuf.UsedLength >= m_iPacketLength)
{
byte[] CRC = new byte[2];
byte[] packet = m_cirBuf.Peek(0, m_iPacketLength);
GetCRC(packet, ref CRC);
if (CRC[0] == packet[packet.Length - 2] && CRC[1] == packet[packet.Length - 1])
{
m_bHeaderFound = true;
m_iPacketsProcessed = 0;
m_cirBuf.Seek(14);
}
else
{
m_bHeaderFound = false;
m_cirBuf.Clear();
}
}
}
if (m_bHeaderFound)
{
byte[] arrPackets = m_cirBuf.Peek(0, m_cirBuf.UsedLength);
if (m_iPacketType == 0)
{
iBase = new GLPLogin(m_arrDeviceID, arrPackets);
//iBase.AddStatus("FirmwareVersion", m_FirmwareVersion);
iBase.loginPacket = true;
iBase.sendAck = sendAck;
}
if (m_iPacketType == 1)
{
iBase = new GLPReport(m_arrDeviceID, arrPackets);
iBase.AddStatus("FirmwareVersion", m_FirmwareVersion);
m_iPacketsProcessed++;
// Forward to next packet start.
m_cirBuf.Seek(iBase != null ? iBase.Length : 0);
iBase.sendAck = sendAck;
}
if (m_iPacketType == 0x20)
{
iBase = new GLPTerminal(m_arrDeviceID, arrPackets);
m_cirBuf.Seek(iBase != null ? iBase.Length : 0);
iBase.sendAck = sendAck;
}
if (m_iPacketType == 0x30)
{
iBase = new GLPBinaryPictureData(m_arrDeviceID, arrPackets);
m_cirBuf.Seek(iBase != null ? iBase.Length : 0);
iBase.sendAck = sendAck;
}
if (m_iPacketType >= 0xF0 && m_iPacketType <= 0xFF)
{
iBase = new GLPLogin(m_arrDeviceID, arrPackets);
m_cirBuf.Seek(m_iPacketLength - 14); //bo nie wiemy jaka jest dlugosc
m_bHeaderFound = false;
iBase.loginPacket = true;
iBase.sendAck = sendAck;
return(iBase);
}
if (m_iPacketsProcessed >= m_iPacketCount || iBase.parseError)
{
// Forward to next packet start (jump CRC).
if (iBase.parseError)
{
m_cirBuf.Clear();
}
else
{
m_cirBuf.Seek(2);
}
m_bHeaderFound = false;
}
}
return(iBase);
}