public static void SplitOddEven(Span <int> source, out Span <int> even, out Span <int> odd)
{
if ((source.Length & 1) == 1)
{
throw new ArgumentException($"The {nameof(source)}'s length must be even!");
}
source.ArrangeOddEven(out even, out odd);
}
public static void CDF53MultiLevel(Span <Int24> span)
{
if (!span.Length.IsPowerOfTwo())
{
throw new ArgumentException("The length of span must be power of 2!", nameof(span));
}
span.ArrangeOddEven(out Span <Int24> even, out Span <Int24> odd);
do
{
CDF53Internal(even, odd);
even.ArrangeOddEven(out var newEven, out odd);
even = newEven;
} while (even.Length > 1);
CDF53Internal(even, odd); //Last Loop is equivalent to Haar transform
}
public static void HaarMultiLevel(Span <Int24> span)
{
if (!span.Length.IsPowerOfTwo())
{
throw new ArgumentException("The length of span must be power of 2!", nameof(span));
}
span.ArrangeOddEven(out Span <Int24> even, out Span <Int24> odd);
do
{
HaarInternal(even, odd);
even.ArrangeOddEven(out var newEven, out odd);
even = newEven;
} while (even.Length > 1);
HaarInternal(even, odd);
}