public static unsafe Half SingleToHalf(float single)
{
uint value = *((uint *)&single);
ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
return(Half.ToHalf(result));
}
/// <summary>
///
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
public static Half ReadHalf(this BinaryReader reader)
{
if (reader is null)
{
throw new ArgumentNullException(nameof(reader));
}
return(Half.ToHalf(reader.ReadBytes(2), 0));
}
public static Half SingleToHalf(float single)
{
uint value = BitConverter.ToUInt32(BitConverter.GetBytes(single), 0);
ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
return(Half.ToHalf(result));
}
public static unsafe Half SingleToHalf(float single)
{
var value = *(uint *)&single;
var result = (ushort)(BaseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> ShiftTable[value >> 23]));
return(Half.ToHalf(result));
}
public static Half SingleToHalf(float single)
{
uint value = new FloatConverter()
{
Float = single
}.Integer;
ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
return(Half.ToHalf(result));
}
public static /* unsafe */ Half SingleToHalf(float single)
{
/* uint value = *((uint*)&single);
*
* ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
* return Half.ToHalf(result); */
uint value = System.BitConverter.ToUInt32(System.BitConverter.GetBytes(single), 0);
ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
return(Half.ToHalf(result));
}
public static Half Abs(Half half)
{
return(Half.ToHalf((ushort)(half.value & 0x7fff)));
}
public static Half Negate(Half half)
{
return(Half.ToHalf((ushort)(half.value ^ 0x8000)));
}
/// <summary>
/// Returns the absolute value of a half-precision floating-point number.
/// </summary>
/// <param name="value">A number in the range System.Half.MinValue ≤ value ≤ System.Half.MaxValue.</param>
/// <returns>A half-precision floating-point number, x, such that 0 ≤ x ≤System.Half.MaxValue.</returns>
public static Half Abs(Half value)
{
return(Half.ToHalf((ushort)(value.value & 0x7fff)));
}
public static Half Abs(Half half) => Half.ToHalf((ushort)(half.value & 0x7fff));
public static Half Negate(Half half) => Half.ToHalf((ushort)(half.value ^ 0x8000));
