def _encode_(self, encodeValue, inProcessPacket):
"""Encodes the provided value into a signed integer fit within the specified number of bytes.
encodeValue -- the signed integer to be encoded.
"""
twosComplementRepresentation = utilities.signedIntegerToTwosComplement(encodeValue, self.bitSize) #note that function handles both pos and neg numbers.
return utilities.unsignedIntegerToBytes(twosComplementRepresentation, self.size) # convert to byte list.
def _encode_(self, encodeValue, inProcessPacket):
"""Encodes the provided value into a signed fixed-point decimal."""
bitShiftedValue = encodeValue * 2**self.fractionalBits #fixed-point encoding is as simple as left-shifting by the fractional bits.
if self.integerBits > 0: #signed value
twosComplementRepresentation = utilities.signedIntegerToTwosComplement(int(bitShiftedValue), self.bitSize) # convert to twos complement
else: #no integer bits, unsigned value
twosComplementRepresentation = bitShiftedValue
return utilities.unsignedIntegerToBytes(twosComplementRepresentation, self.size) #convert to byte list
