Unpacks count components of a row stored at 1, 2, 4, 8 or 16 bits into one each, as raw values.
public static void Unpack(ReadOnlySpan<byte> row, int storageBits, int count, Span<ushort> destination)
The row, from its first byte.
The storage width: 1, 2, 4, 8 or 16.
The number of components to unpack.
At least count values.
ISO 32000-2 §8.9.3: 16-bit components are big-endian.