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https://github.com/Ryujinx/Ryujinx.git
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* ASTC optimizations * Move code to Ryujinx.Common * Support 3D textures * Address feedback * Remove ASTC logging * Use stackalloc instead of a Buffer20 struct * Code style and cleanup * Respond to feedback * Rearrange public/private property ordering
60 lines
1.9 KiB
C#
60 lines
1.9 KiB
C#
using System;
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using System.Diagnostics;
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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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[DebuggerDisplay("{ToString()}")]
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[StructLayout(LayoutKind.Sequential, Size = 16)]
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public struct Buffer16
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{
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[DebuggerBrowsable(DebuggerBrowsableState.Never)] private ulong _dummy0;
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[DebuggerBrowsable(DebuggerBrowsableState.Never)] private ulong _dummy1;
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public byte this[int i]
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{
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get => Bytes[i];
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set => Bytes[i] = value;
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}
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public Span<byte> Bytes => SpanHelpers.AsByteSpan(ref this);
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// Prevent a defensive copy by changing the read-only in reference to a reference with Unsafe.AsRef()
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static implicit operator Span<byte>(in Buffer16 value)
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{
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return SpanHelpers.AsByteSpan(ref Unsafe.AsRef(in value));
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static implicit operator ReadOnlySpan<byte>(in Buffer16 value)
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{
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return SpanHelpers.AsReadOnlyByteSpan(ref Unsafe.AsRef(in value));
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public ref T As<T>() where T : unmanaged
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{
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if (Unsafe.SizeOf<T>() > (uint)Unsafe.SizeOf<Buffer16>())
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{
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throw new ArgumentException();
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}
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return ref MemoryMarshal.GetReference(AsSpan<T>());
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Span<T> AsSpan<T>() where T : unmanaged
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{
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return SpanHelpers.AsSpan<Buffer16, T>(ref this);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public readonly ReadOnlySpan<T> AsReadOnlySpan<T>() where T : unmanaged
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{
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return SpanHelpers.AsReadOnlySpan<Buffer16, T>(ref Unsafe.AsRef(in this));
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}
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}
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}
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