public static ushort BitDecode(ushort bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
Contract.Requires/*<ArgumentOutOfRangeException>*/ (traits.BitIndex < kInt16BitCount);
Contract.Requires/*<ArgumentOutOfRangeException>*/ (traits.BitIndex + traits.BitCount <= kInt16BitCount);
return((ushort)((bits >> traits.BitIndex) & traits.Bitmask16));
}
public static ulong BitEncode(ulong value, ulong bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
var bitmask = traits.Bitmask64;
// Use the bit mask's invert so we can get all of the non-value bits
return(BitEncodeFlags(value, bits & (~bitmask), traits.BitIndex, bitmask));
}
public static ushort BitEncode(ushort value, ushort bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
Contract.Requires/*<ArgumentOutOfRangeException>*/ (traits.BitIndex < kInt16BitCount);
Contract.Requires/*<ArgumentOutOfRangeException>*/ (traits.BitIndex + traits.BitCount <= kInt16BitCount);
var bitmask = (uint)traits.Bitmask16;
// Use the bit mask's invert so we can get all of the non-value bits
return((ushort)BitEncodeFlags(value, bits & (~bitmask), traits.BitIndex, bitmask));
}
public TEnum BitDecode(ulong bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires(!traits.IsEmpty);
return(BitDecode(bits, traits.BitIndex));
}
public ulong BitEncode(TEnum value, ulong bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires(!traits.IsEmpty);
return(BitEncode(value, bits, traits.BitIndex));
}
public static int BitDecodeNoneable(uint bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
return((int)BitDecode(bits, traits.BitIndex, traits.Bitmask32) - 1);
}
public static uint BitDecode(uint bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
return((bits >> traits.BitIndex) & traits.Bitmask32);
}
public static long BitDecodeNoneable(ulong bits, Bitwise.BitFieldTraits traits)
{
Contract.Requires/*<ArgumentException>*/ (!traits.IsEmpty);
return((long)BitDecode(bits, traits.BitIndex, traits.Bitmask64) - 1);
}
public static BitFieldTraits For <TUInt>(IEnumBitEncoder <TUInt> enumEncoder, BitFieldTraits prev)
{
Contract.Requires(enumEncoder != null);
return(new BitFieldTraits(enumEncoder.BitCountTrait, prev));
}
public BitFieldTraits(int bitCount, BitFieldTraits prev)
: this(false, bitCount, prev.NextFieldBitIndex)
{
Contract.Requires <ArgumentOutOfRangeException>(bitCount > 0 && bitCount <= kMaxBitCount);
Contract.Requires <ArgumentException>((prev.NextFieldBitIndex + bitCount) <= kMaxBitCount);
}
public TEnum BitEncode(uint bits, Bitwise.BitFieldTraits traits)
{
return(BitDecode(bits, traits.BitIndex));
}
public ushort BitEncode(TEnum value, ushort bits, Bitwise.BitFieldTraits traits)
{
return((ushort)BitEncode(value, bits, traits.BitIndex));
}
