public static void WriteWord(this MemoryStream myMemoryStream, UInt16 myWord, ByteOrder myByteOrder = ByteOrder.Unmodified)
{
Byte[] _Bytes = null;
switch (myByteOrder)
{
case ByteOrder.Unmodified:
_Bytes = BitConverter.GetBytes(myWord);
break;
case ByteOrder.HostToNetwork:
_Bytes = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(myWord));
break;
case ByteOrder.NetworkToHost:
_Bytes = BitConverter.GetBytes(IPAddress.NetworkToHostOrder(myWord));
break;
}
myMemoryStream.WriteByte(_Bytes[0]); // high byte
myMemoryStream.WriteByte(_Bytes[1]); // low byte
}
/// <summary>
/// Applies the specified endianess to an int32 (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static int ApplyInt32(ByteOrder byteOrder, int value)
{
if (byteOrder == NativeByteOrder) return value;
return (int)((value & 0x000000FFU) << 24 | (value & 0x0000FF00U) << 8 |
(value & 0x00FF0000U) >> 8 | (value & 0xFF000000U) >> 24);
}
/// <summary>
/// Applies the specified endianess to an uint32 (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static uint ApplyUint32(ByteOrder byteOrder, uint value)
{
if (byteOrder == NativeByteOrder) return value;
return (value & 0x000000FFU) << 24 | (value & 0x0000FF00U) << 8 |
(value & 0x00FF0000U) >> 8 | (value & 0xFF000000U) >> 24;
}
/// <summary>
/// Applies the specified endianess to an uint64 (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static ulong ApplyUint64(ByteOrder byteOrder, ulong value)
{
if (byteOrder == NativeByteOrder) return value;
return (value & 0x00000000000000FFUL) << 56 | (value & 0x000000000000FF00UL) << 40 |
(value & 0x0000000000FF0000UL) << 24 | (value & 0x00000000FF000000UL) << 8 |
(value & 0x000000FF00000000UL) >> 8 | (value & 0x0000FF0000000000UL) >> 24 |
(value & 0x00FF000000000000UL) >> 40 | (value & 0xFF00000000000000UL) >> 56;
}
public static unsafe float ApplyFloat(ByteOrder byteOrder, float value)
{
if (byteOrder == NativeByteOrder) return value;
int valueInt = *(int*) &value;
int applied = ApplyInt32(byteOrder, valueInt);
return *(float*) &applied;
}
public static unsafe byte[] GetBytes(float value, ByteOrder order)
{
byte[] bytes = GetBytes(value);
if (order != ByteOrder.LittleEndian)
{
//reserver order
ReverseArray(bytes);
}
return bytes;
}
public static short ToHostOrder(short value, ByteOrder inputByteOrder)
{
switch (inputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return IPAddress.NetworkToHostOrder(value);
default:
throw new ArgumentOutOfRangeException("inputByteOrder");
}
}
/// <summary>
/// Converts the specified bytes to an Int32. Byter order is considered.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="bytes">The source byte array from which the bytes will be taken for conversion.</param>
/// <param name="srcOffset">The offset into the source array where the bytes will be taken.</param>
/// <returns></returns>
public static int ToInt32(ByteOrder byteOrder, byte[] bytes, int srcOffset)
{
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
int value = BitConverter.ToInt32(bytes, srcOffset);
if (byteOrder == ByteOrder.BigEndian)
{
return IPAddress.NetworkToHostOrder(value);
}
return value;
}
public static double ToOutputOrder(double value, ByteOrder outputByteOrder)
{
switch (outputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return LongToDouble(IPAddress.HostToNetworkOrder(DoubleToLong(value)));
default:
throw new ArgumentOutOfRangeException("outputByteOrder");
}
}
public static float ToOutputOrder(float value, ByteOrder outputByteOrder)
{
switch (outputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return IntegerToFloat(IPAddress.HostToNetworkOrder(FloatToInteger(value)));
default:
throw new ArgumentOutOfRangeException("outputByteOrder");
}
}
public static long ToOutputOrder(long value, ByteOrder outputByteOrder)
{
switch (outputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return IPAddress.HostToNetworkOrder(value);
default:
throw new ArgumentOutOfRangeException("outputByteOrder");
}
}
public static ushort ToHostOrder(ushort value, ByteOrder inputByteOrder)
{
switch (inputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return SignedToUnsignedShort(IPAddress.NetworkToHostOrder(UnsignedToSignedShort(value)));
default:
throw new ArgumentOutOfRangeException("inputByteOrder");
}
}
/// <summary>
/// Converts the specified bytes to a Guid. Byter order is considered.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="bytes">The source byte array from which the bytes will be taken for conversion.</param>
/// <param name="srcOffset">The offset into the source array where the bytes will be taken.</param>
/// <returns></returns>
public static Guid ToGuid(ByteOrder byteOrder, byte[] bytes, int srcOffset)
{
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
int segmentA = BitConverter.ToInt32(bytes, srcOffset);
short segmentB = BitConverter.ToInt16(bytes, srcOffset + 4);
short segmentC = BitConverter.ToInt16(bytes, srcOffset + 6);
if (byteOrder == ByteOrder.BigEndian)
{
segmentA = IPAddress.NetworkToHostOrder(segmentA);
segmentB = IPAddress.NetworkToHostOrder(segmentB);
segmentC = IPAddress.NetworkToHostOrder(segmentC);
}
byte[] resultBytes = new byte[16];
// copy the bytes around to recreate the Guid
Buffer.BlockCopy(BitConverter.GetBytes(segmentA), 0, resultBytes, 0, 4);
Buffer.BlockCopy(BitConverter.GetBytes(segmentB), 0, resultBytes, 4, 2);
Buffer.BlockCopy(BitConverter.GetBytes(segmentC), 0, resultBytes, 6, 2);
Buffer.BlockCopy(bytes, srcOffset + 8, resultBytes, 8, 8);
return new Guid(resultBytes);
}
public static unsafe float ToSingle(byte[] value, int index, ByteOrder order)
{
if (order != ByteOrder.LittleEndian)
{
//reserver order
ReverseArray(value);
}
return ToSingle(value, index);
}
/// <summary>
/// Applies the specified endianess to an int64 (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static long ApplyInt64(ByteOrder byteOrder, long value)
{
if (byteOrder == NativeByteOrder) return value;
return IPAddress.HostToNetworkOrder(value);
}
internal double ReadDouble(ByteOrder bo)
{
Contract.Requires(ReadBytesLeft >= sizeof(double));
if (BitConverter.IsLittleEndian == (ByteOrder.LSB == bo))
{
var result = BitConverter.ToDouble(_buf, ReadPosition);
ReadPosition += 8;
return result;
}
else
{
_workspace[7] = _buf[ReadPosition++];
_workspace[6] = _buf[ReadPosition++];
_workspace[5] = _buf[ReadPosition++];
_workspace[4] = _buf[ReadPosition++];
_workspace[3] = _buf[ReadPosition++];
_workspace[2] = _buf[ReadPosition++];
_workspace[1] = _buf[ReadPosition++];
_workspace[0] = _buf[ReadPosition++];
return BitConverter.ToDouble(_workspace, 0);
}
}
/// <summary>
/// Converts the specified Int64 into a byte array. Byter order is considered.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="value">The long to convert.</param>
/// <returns></returns>
public static byte[] GetBytes(ByteOrder byteOrder, long value)
{
if (byteOrder == ByteOrder.BigEndian)
{
value = IPAddress.HostToNetworkOrder(value);
}
return BitConverter.GetBytes(value);
}
/// <summary>
/// Converts the specified Guid into a byte array. Byter order is considered.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="value">The Guid to convert.</param>
/// <returns></returns>
public static byte[] GetBytes(ByteOrder byteOrder, Guid value)
{
byte[] bytes = value.ToByteArray();
if (byteOrder == ByteOrder.BigEndian)
{
int segmentA = BitConverter.ToInt32(bytes, 0);
short segmentB = BitConverter.ToInt16(bytes, 4);
short segmentC = BitConverter.ToInt16(bytes, 6);
segmentA = IPAddress.HostToNetworkOrder(segmentA);
segmentB = IPAddress.HostToNetworkOrder(segmentB);
segmentC = IPAddress.HostToNetworkOrder(segmentC);
Buffer.BlockCopy(BitConverter.GetBytes(segmentA), 0, bytes, 0, 4);
Buffer.BlockCopy(BitConverter.GetBytes(segmentB), 0, bytes, 4, 2);
Buffer.BlockCopy(BitConverter.GetBytes(segmentC), 0, bytes, 6, 2);
}
return bytes;
}
/// <summary>
/// Applies the specified endianess to an uint16 (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static ushort ApplyUint16(ByteOrder byteOrder, ushort value)
{
if (byteOrder == NativeByteOrder) return value;
return (ushort)((value & 0xFFU) << 8 | (value & 0xFF00U) >> 8);
}
/// <summary>
/// Applies the specified endianess to a double (reverse bytes if input endianess is different from system's endianess)
/// </summary>
/// <param name="byteOrder">the endianess to apply</param>
/// <param name="value">the value to be converted</param>
/// <returns>The value with applied endainess</returns>
public static double ApplyDouble(ByteOrder byteOrder, double value)
{
if (byteOrder == NativeByteOrder) return value;
return BitConverter.Int64BitsToDouble(IPAddress.HostToNetworkOrder(BitConverter.DoubleToInt64Bits(value)));
}
public static ulong ToOutputOrder(ulong value, ByteOrder outputByteOrder)
{
switch (outputByteOrder)
{
case ByteOrder.Host:
return value;
case ByteOrder.Network:
return SignedToUnsignedLong(IPAddress.HostToNetworkOrder(UnsignedToSignedLong(value)));
default:
throw new ArgumentOutOfRangeException("outputByteOrder");
}
}
/// <summary>
/// Converts the specified bytes to a Guid. Byte order is considered.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="bytes">The source byte array from which the bytes will be taken for conversion.</param>
/// <param name="srcOffset">The offset into the source array where the bytes will be taken.</param>
/// <param name="numElements">The number of elements that should be returned in the final int array.</param>
/// <returns></returns>
public static int[] ToInt32Array(ByteOrder byteOrder, byte[] bytes, int srcOffset, int numElements)
{
if (bytes == null)
{
throw new ArgumentNullException("bytes");
}
int[] values = new int[numElements];
// this will consume 4 * N bytes
for (int i = 0; i < numElements; i++)
{
values[i] = SocketUtilities.ToInt32(byteOrder, bytes, srcOffset + 4 * i);
}
return values;
}
internal uint ReadUInt32(ByteOrder bo)
{
Contract.Requires(ReadBytesLeft >= sizeof(int));
uint result;
if (BitConverter.IsLittleEndian == (bo == ByteOrder.LSB))
{
result = BitConverter.ToUInt32(_buf, ReadPosition);
ReadPosition += 4;
}
else
{
_workspace[3] = _buf[ReadPosition++];
_workspace[2] = _buf[ReadPosition++];
_workspace[1] = _buf[ReadPosition++];
_workspace[0] = _buf[ReadPosition++];
result = BitConverter.ToUInt32(_workspace, 0);
}
return result;
}
/// <summary>
/// Returns a byte array containing 4 * N bytes where N is the number of elements in the integer array.
/// </summary>
/// <param name="byteOrder">The byte order to use during the conversion.</param>
/// <param name="values">The array of integers that will be used to create the byte array.</param>
/// <returns></returns>
public static byte[] GetBytes(ByteOrder byteOrder, int[] values)
{
if (values == null)
{
throw new ArgumentNullException("values");
}
int offset = 0;
byte[] resultBuffer = new byte[4 * values.Length];
foreach (int value in values)
{
int length = value;
if (byteOrder == ByteOrder.BigEndian)
{
length = IPAddress.HostToNetworkOrder(length);
}
byte[] buffer = BitConverter.GetBytes(length);
Buffer.BlockCopy(buffer, 0, resultBuffer, offset, buffer.Length);
offset += buffer.Length;
}
return resultBuffer;
}
