using System; using System.Runtime.CompilerServices; using System.Runtime.InteropServices; namespace Ryujinx.Common.Memory { public ref struct SpanReader { private ReadOnlySpan<byte> _input; public int Length => _input.Length; public SpanReader(ReadOnlySpan<byte> input) { _input = input; } public T Read<T>() where T : unmanaged { T value = MemoryMarshal.Cast<byte, T>(_input)[0]; _input = _input.Slice(Unsafe.SizeOf<T>()); return value; } public ReadOnlySpan<byte> GetSpan(int size) { ReadOnlySpan<byte> data = _input.Slice(0, size); _input = _input.Slice(size); return data; } public T ReadAt<T>(int offset) where T : unmanaged { return MemoryMarshal.Cast<byte, T>(_input.Slice(offset))[0]; } public ReadOnlySpan<byte> GetSpanAt(int offset, int size) { return _input.Slice(offset, size); } public void Skip(int size) { _input = _input.Slice(size); } } }