using System;
using System.Numerics;
using System.Runtime.InteropServices;

namespace Auspex.Vfx.Internal;

internal sealed class PinnedAlignedMatrix : IDisposable
{
	private IntPtr rawptr;

	private IntPtr aligned;

	public unsafe Matrix4x4* Get => (Matrix4x4*)aligned;

	public unsafe PinnedAlignedMatrix()
	{
		rawptr = Marshal.AllocHGlobal(sizeof(Matrix4x4) + 8);
		aligned = new IntPtr(16 * (((long)(nint)rawptr + 15L) / 16));
	}

	public void Dispose()
	{
		Marshal.FreeHGlobal(rawptr);
		GC.SuppressFinalize(this);
	}
}