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84 lines
3.0 KiB
84 lines
3.0 KiB
// Copyright (c) Six Labors.
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// Licensed under the Six Labors Split License.
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using System.Numerics;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Runtime.Intrinsics;
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using SixLabors.ImageSharp.PixelFormats;
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namespace SixLabors.ImageSharp.Benchmarks.General.PixelConversion;
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[StructLayout(LayoutKind.Sequential)]
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public struct TestRgba : ITestPixel<TestRgba>
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{
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public byte R;
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public byte G;
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public byte B;
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public byte A;
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private static readonly Vector4 MaxBytes = Vector128.Create(255f).AsVector4();
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private static readonly Vector4 Half = Vector128.Create(.5f).AsVector4();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private TestRgba(byte r, byte g, byte b, byte a)
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{
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this.R = r;
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this.G = g;
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this.B = b;
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this.A = a;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private TestRgba(Rgba32 source) => this = Unsafe.As<Rgba32, TestRgba>(ref source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void FromRgba32(Rgba32 source) => this = Unsafe.As<Rgba32, TestRgba>(ref source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static TestRgba StaticFromRgba32(Rgba32 source) => new(source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void FromRgba32(ref Rgba32 source) => this = Unsafe.As<Rgba32, TestRgba>(ref source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void FromBytes(byte r, byte g, byte b, byte a)
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{
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this.R = r;
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this.G = g;
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this.B = b;
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this.A = a;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void FromVector4(Vector4 source) => this = Pack(source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static TestRgba StaticFromVector4(Vector4 source) => Pack(source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void FromVector4(ref Vector4 source) => this = Pack(source);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Rgba32 ToRgba32() => Unsafe.As<TestRgba, Rgba32>(ref this);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void CopyToRgba32(ref Rgba32 destination) => destination = Unsafe.As<TestRgba, Rgba32>(ref this);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public readonly Vector4 ToVector4() => new Vector4(this.R, this.G, this.B, this.A) / MaxBytes;
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public readonly void CopyToVector4(ref Vector4 destination) => destination = this.ToVector4();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private static TestRgba Pack(Vector4 vector)
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{
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vector *= MaxBytes;
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vector += Half;
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vector = Numerics.Clamp(vector, Vector4.Zero, MaxBytes);
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Vector128<byte> result = Vector128.ConvertToInt32(vector.AsVector128()).AsByte();
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return new TestRgba(result.GetElement(0), result.GetElement(4), result.GetElement(8), result.GetElement(12));
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}
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}
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