/// <summary>
/// 发送数据转换
/// </summary>
public List <SendFrame> NodeX0sToBytes(List <NodeX0> nodeX0s)
{
List <SendFrame> sendBytesList = new List <SendFrame>();
for (int i = 0; i < nodeX0s.Count; i++)
{
SendFrame sf = new SendFrame();
sf.canId = nodeX0s[i].UINTCANID;
sf.datas = new byte[8];
for (int j = 0; j < nodeX0s[i].NodeX1s.Count; j++)
{
switch (nodeX0s[i].NodeX1s[j].ItemLengthValue) //第一个可用字节长度
{
case 1: //一个字节
for (int k = 0; k < nodeX0s[i].NodeX1s[j].NodeX2s.Count; k++)
{
int a = nodeX0s[i].NodeX1s[j].NodeX2s[k].Value;
int offset = nodeX0s[i].NodeX1s[j].NodeX2s[k].StartBitIndex;
int and = (int)Math.Pow(2, nodeX0s[i].NodeX1s[j].NodeX2s[k].BitLength) - 1;
byte value = (byte)((a & and) << offset);
value = (byte)((value - nodeX0s[i].NodeX1s[j].NodeX2s[k].Offset) / nodeX0s[i].NodeX1s[j].NodeX2s[k].Resolution);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] += value;
}
break;
case 2: //二个字节
{
int value = (int)((nodeX0s[i].NodeX1s[j].NodeX2s[0].Value - nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset) / nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] = (byte)(value & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] = (byte)((value >> 8) & 0xff);
}
break;
case 3: //三个字节
{
int value = (int)((nodeX0s[i].NodeX1s[j].NodeX2s[0].Value - nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset) / nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] = (byte)(value & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 1] = (byte)((value >> 8) & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] = (byte)((value >> 16) & 0xff);
}
break;
case 4: //四个字节
{
int value = (int)((nodeX0s[i].NodeX1s[j].NodeX2s[0].Value - nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset) / nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] = (byte)(value & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 1] = (byte)((value >> 8) & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 2] = (byte)((value >> 16) & 0xff);
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] = (byte)((value >> 24) & 0xff);
}
break;
default:
break;
}
}
sendBytesList.Add(sf);
}
return(sendBytesList);
}
private void SendFragment(int id, Bitmap fragment)
{
MemoryStream fStream = new MemoryStream();
fragment.Save(fStream, ImageFormat.Jpeg);
fStream.Position = 0;
MemoryStream stream = new MemoryStream();
BinaryWriter writer = new BinaryWriter(stream);
writer.Write((Int32)sessionId);
writer.Write((byte)1); // 1 = Video
writer.Write((byte)id); // id fragment
writer.Write((Int32)fStream.Length); // size fragment
writer.Write(fStream.ToArray());
stream.Position = 0;
SendFrame?.Invoke(stream.ToArray());
}
/// <summary>
/// 接收数据转换
/// </summary>
public void BytesToFrame(SendFrame sf, ref List <NodeX0> nodeX0s)
{
for (int i = 0; i < nodeX0s.Count; i++)
{
if (sf.canId == nodeX0s[i].UINTCANID)
{
for (int j = 0; j < nodeX0s[i].NodeX1s.Count; j++)
{
#region 字节值转换
switch (nodeX0s[i].NodeX1s[j].ItemLengthValue) //第一个可用字节长度
{
case 1: //一个字节
for (int k = 0; k < nodeX0s[i].NodeX1s[j].NodeX2s.Count; k++)
{
#region 位域转换
int a = sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue];
int offset = nodeX0s[i].NodeX1s[j].NodeX2s[k].StartBitIndex;
int and = (int)Math.Pow(2, nodeX0s[i].NodeX1s[j].NodeX2s[k].BitLength) - 1;
byte value = (byte)((a >> offset) & and);
value = (byte)(value * nodeX0s[i].NodeX1s[j].NodeX2s[k].Resolution + nodeX0s[i].NodeX1s[j].NodeX2s[k].Offset);
nodeX0s[i].NodeX1s[j].NodeX2s[k].Value = value;
#endregion
}
break;
case 2: //二个字节
{
nodeX0s[i].NodeX1s[j].NodeX2s[0].Value = (int)((sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] +
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] * 256) * nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution + nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset);
}
break;
case 3: //三个字节
{
nodeX0s[i].NodeX1s[j].NodeX2s[0].Value = (int)((sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] +
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 1] * 256 +
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] * 256 * 256) * nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution + nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset);
}
break;
case 4: //四个字节
{
nodeX0s[i].NodeX1s[j].NodeX2s[0].Value = (int)((sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue] +
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 1] * 256 +
sf.datas[nodeX0s[i].NodeX1s[j].ItemStartValue + 1] * 256 * 256 +
sf.datas[nodeX0s[i].NodeX1s[j].ItemEndValue] * 256 * 256 * 256) * nodeX0s[i].NodeX1s[j].NodeX2s[0].Resolution + nodeX0s[i].NodeX1s[j].NodeX2s[0].Offset);
}
break;
default:
break;
}
#endregion
}
}
}
}
public void Send(string topic, string body, string contentType)
{
var sendFrame = new SendFrame(topic, body, contentType);
this.SendStompFrame(sendFrame);
}
public SendReceivedEventArgs(string sessionId, SendFrame sendFrame)
{
this.SessionId = sessionId;
this.SendFrame = sendFrame;
}
