static long ApplyIntegerCastMode(long value, IntDsdlType type)
{
var maxValue = type.MaxBitlen == 64 ? unchecked ((long)ulong.MaxValue) : (long)((1UL << type.MaxBitlen) - 1);
switch (type.CastMode)
{
case CastMode.Truncated:
return(value & maxValue);
case CastMode.Saturated:
var range = TypeLimits.GetIntRange(type.MaxBitlen);
if (value < range.Minimum)
{
return(range.Minimum);
}
else if (value > range.Maximum)
{
return(range.Maximum);
}
return(value);
default:
throw new ArgumentOutOfRangeException(nameof(type.CastMode));
}
}
static void WriteFloatPrimitive(BitStreamWriter writer, double value, FloatDsdlType type)
{
var range = TypeLimits.GetFloatRange(type.MaxBitlen);
switch (type.CastMode)
{
case CastMode.Saturated:
if (value > range.Maximum)
{
value = range.Maximum;
}
if (value < range.Minimum)
{
value = range.Minimum;
}
break;
case CastMode.Truncated:
if (!double.IsNaN(value) && value > range.Maximum)
{
value = double.PositiveInfinity;
}
if (!double.IsNaN(value) && value < range.Maximum)
{
value = double.NegativeInfinity;
}
break;
default:
throw new ArgumentOutOfRangeException();
}
switch (type.MaxBitlen)
{
case 16:
var val = BitSerializer.Float32ToUInt16((float)value);
BitSerializer.Write(writer, val, 16);
break;
case 32:
BitSerializer.Write(writer, (float)value, 32);
break;
case 64:
BitSerializer.Write(writer, value, 64);
break;
default:
throw new InvalidOperationException($"Unexpected float bit lenght: {type.MaxBitlen}.");
}
}