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62 lines
2.3 KiB
C#
62 lines
2.3 KiB
C#
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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.Utilities
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{
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public static class SpanHelpers
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static Span<T> CreateSpan<T>(ref T reference, int length)
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{
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return MemoryMarshal.CreateSpan(ref reference, length);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static Span<T> AsSpan<T>(ref T reference) where T : unmanaged
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{
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return CreateSpan(ref reference, 1);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static Span<TSpan> AsSpan<TStruct, TSpan>(ref TStruct reference)
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where TStruct : unmanaged where TSpan : unmanaged
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{
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return CreateSpan(ref Unsafe.As<TStruct, TSpan>(ref reference),
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Unsafe.SizeOf<TStruct>() / Unsafe.SizeOf<TSpan>());
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static Span<byte> AsByteSpan<T>(ref T reference) where T : unmanaged
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{
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return CreateSpan(ref Unsafe.As<T, byte>(ref reference), Unsafe.SizeOf<T>());
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ReadOnlySpan<T> CreateReadOnlySpan<T>(ref T reference, int length)
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{
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return MemoryMarshal.CreateReadOnlySpan(ref reference, length);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ReadOnlySpan<T> AsReadOnlySpan<T>(ref T reference) where T : unmanaged
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{
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return CreateReadOnlySpan(ref reference, 1);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ReadOnlySpan<TSpan> AsReadOnlySpan<TStruct, TSpan>(ref TStruct reference)
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where TStruct : unmanaged where TSpan : unmanaged
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{
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return CreateReadOnlySpan(ref Unsafe.As<TStruct, TSpan>(ref reference),
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Unsafe.SizeOf<TStruct>() / Unsafe.SizeOf<TSpan>());
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ReadOnlySpan<byte> AsReadOnlyByteSpan<T>(ref T reference) where T : unmanaged
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{
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return CreateReadOnlySpan(ref Unsafe.As<T, byte>(ref reference), Unsafe.SizeOf<T>());
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}
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}
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}
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