45 lines
1.1 KiB
C#
45 lines
1.1 KiB
C#
using System;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Common.Memory
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{
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public ref struct SpanWriter
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{
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private Span<byte> _output;
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public readonly int Length => _output.Length;
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public SpanWriter(Span<byte> output)
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{
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_output = output;
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}
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public void Write<T>(T value) where T : unmanaged
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{
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MemoryMarshal.Cast<byte, T>(_output)[0] = value;
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_output = _output[Unsafe.SizeOf<T>()..];
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}
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public void Write(ReadOnlySpan<byte> data)
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{
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data.CopyTo(_output[..data.Length]);
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_output = _output[data.Length..];
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}
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public readonly void WriteAt<T>(int offset, T value) where T : unmanaged
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{
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MemoryMarshal.Cast<byte, T>(_output[offset..])[0] = value;
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}
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public readonly void WriteAt(int offset, ReadOnlySpan<byte> data)
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{
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data.CopyTo(_output.Slice(offset, data.Length));
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}
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public void Skip(int size)
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{
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_output = _output[size..];
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}
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}
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}
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