NdsDsiDigestOptions.cs

namespace NdsForge;

public sealed record NdsDsiDigestOptions
{
    public static NdsDsiDigestOptions Default { get; } = new();

    public int SectorSize { get; init; } = 0x400;

    public int BlockSectorCount { get; init; } = 0x20;

    internal void Validate()
    {
        if (SectorSize < 0x200 || SectorSize > 16 * 1024 * 1024 || (SectorSize & (SectorSize - 1)) != 0)
        {
            throw new ArgumentException("DSi digest sectors must be a power of two from 512 bytes through 16 MiB.");
        }
 
        if (BlockSectorCount is < 1 or > 65_536)
        {
            throw new ArgumentException("A DSi digest block must contain from one through 65,536 sector hashes.");
        }
    }
}