mirror of https://github.com/SixLabors/ImageSharp
James Jackson-South
5 years ago
3 changed files with 33 additions and 250 deletions
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// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System; |
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using System.Collections.Generic; |
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using System.Diagnostics; |
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using System.Linq; |
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using System.Numerics; |
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#if SUPPORTS_RUNTIME_INTRINSICS
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using System.Runtime.Intrinsics.X86; |
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#endif
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using Microsoft.DotNet.RemoteExecutor; |
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using Xunit; |
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using Xunit.Abstractions; |
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namespace SixLabors.ImageSharp.Tests.TestUtilities |
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{ |
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/// <summary>
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/// Allows the testing against specific feature sets.
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/// </summary>
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public static class FeatureTestRunner |
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{ |
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private static readonly char[] SplitChars = new[] { ',', ' ' }; |
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/// <summary>
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/// Allows the deserialization of parameters passed to the feature test.
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/// <remark>
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/// <para>
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/// This is required because <see cref="RemoteExecutor"/> does not allow
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/// marshalling of fields so we cannot pass a wrapped <see cref="Action{T}"/>
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/// allowing automatic deserialization.
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/// </para>
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/// </remark>
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/// </summary>
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/// <typeparam name="T">The type to deserialize to.</typeparam>
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/// <param name="value">The string value to deserialize.</param>
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/// <returns>The <see cref="T"/> value.</returns>
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public static T Deserialize<T>(string value) |
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where T : IXunitSerializable |
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=> BasicSerializer.Deserialize<T>(value); |
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// TODO: Write runner test and use this.
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private static void AssertHwIntrinsicsFeatureDisabled(HwIntrinsics intrinsics) |
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{ |
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switch (intrinsics) |
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{ |
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case HwIntrinsics.DisableSIMD: |
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Assert.False(Vector.IsHardwareAccelerated); |
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break; |
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#if SUPPORTS_RUNTIME_INTRINSICS
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case HwIntrinsics.DisableHWIntrinsic: |
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Assert.False(Vector.IsHardwareAccelerated); |
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break; |
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case HwIntrinsics.DisableSSE: |
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Assert.False(Sse.IsSupported); |
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break; |
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case HwIntrinsics.DisableSSE2: |
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Assert.False(Sse2.IsSupported); |
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break; |
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case HwIntrinsics.DisableAES: |
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Assert.False(Aes.IsSupported); |
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break; |
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case HwIntrinsics.DisablePCLMULQDQ: |
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Assert.False(Pclmulqdq.IsSupported); |
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break; |
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case HwIntrinsics.DisableSSE3: |
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Assert.False(Sse3.IsSupported); |
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break; |
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case HwIntrinsics.DisableSSSE3: |
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Assert.False(Ssse3.IsSupported); |
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break; |
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case HwIntrinsics.DisableSSE41: |
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Assert.False(Sse41.IsSupported); |
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break; |
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case HwIntrinsics.DisableSSE42: |
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Assert.False(Sse42.IsSupported); |
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break; |
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case HwIntrinsics.DisablePOPCNT: |
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Assert.False(Popcnt.IsSupported); |
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break; |
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case HwIntrinsics.DisableAVX: |
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Assert.False(Avx.IsSupported); |
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break; |
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case HwIntrinsics.DisableFMA: |
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Assert.False(Fma.IsSupported); |
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break; |
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case HwIntrinsics.DisableAVX2: |
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Assert.False(Avx2.IsSupported); |
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break; |
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case HwIntrinsics.DisableBMI1: |
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Assert.False(Bmi1.IsSupported); |
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break; |
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case HwIntrinsics.DisableBMI2: |
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Assert.False(Bmi2.IsSupported); |
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break; |
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case HwIntrinsics.DisableLZCNT: |
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Assert.False(Lzcnt.IsSupported); |
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break; |
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#endif
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} |
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} |
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/// <summary>
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/// Runs the given test <paramref name="action"/> within an environment
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/// where the given <paramref name="intrinsics"/> features.
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/// </summary>
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/// <param name="action">The test action to run.</param>
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/// <param name="intrinsics">The intrinsics features.</param>
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public static void RunWithHwIntrinsicsFeature( |
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Action action, |
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HwIntrinsics intrinsics) |
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{ |
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if (!RemoteExecutor.IsSupported) |
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{ |
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return; |
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} |
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foreach (string intrinsic in intrinsics.ToFeatureCollection()) |
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{ |
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var processStartInfo = new ProcessStartInfo(); |
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if (intrinsic != nameof(HwIntrinsics.AllowAll)) |
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{ |
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processStartInfo.Environment[$"COMPlus_{intrinsic}"] = "0"; |
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} |
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RemoteExecutor.Invoke( |
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action, |
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new RemoteInvokeOptions |
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{ |
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StartInfo = processStartInfo |
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}) |
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.Dispose(); |
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} |
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} |
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/// <summary>
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/// Runs the given test <paramref name="action"/> within an environment
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/// where the given <paramref name="intrinsics"/> features.
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/// </summary>
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/// <param name="action">The test action to run.</param>
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/// <param name="intrinsics">The intrinsics features.</param>
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/// <param name="serializable">The value to pass as a parameter to the test action.</param>
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public static void RunWithHwIntrinsicsFeature<T>( |
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Action<string> action, |
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HwIntrinsics intrinsics, |
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T serializable) |
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where T : IXunitSerializable |
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{ |
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if (!RemoteExecutor.IsSupported) |
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{ |
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return; |
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} |
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foreach (string intrinsic in intrinsics.ToFeatureCollection()) |
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{ |
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var processStartInfo = new ProcessStartInfo(); |
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if (intrinsic != nameof(HwIntrinsics.AllowAll)) |
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{ |
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processStartInfo.Environment[$"COMPlus_Enable{intrinsic}"] = "0"; |
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} |
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RemoteExecutor.Invoke( |
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action, |
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BasicSerializer.Serialize(serializable), |
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new RemoteInvokeOptions |
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{ |
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StartInfo = processStartInfo |
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}) |
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.Dispose(); |
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} |
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} |
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private static IEnumerable<string> ToFeatureCollection(this HwIntrinsics intrinsics) |
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{ |
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// Loop through and translate the given values into COMPlus equivaluents
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var features = new List<string>(); |
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foreach (string intrinsic in intrinsics.ToString("G").Split(SplitChars, StringSplitOptions.RemoveEmptyEntries)) |
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{ |
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switch (intrinsic) |
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{ |
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case nameof(HwIntrinsics.DisableSIMD): |
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features.Add("FeatureSIMD"); |
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break; |
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case nameof(HwIntrinsics.AllowAll): |
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// Not a COMPlus value. We filter in calling method.
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features.Add(nameof(HwIntrinsics.AllowAll)); |
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break; |
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default: |
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features.Add(intrinsic.Replace("Disable", "Enable")); |
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break; |
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} |
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} |
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return features; |
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} |
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} |
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/// <summary>
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/// See <see href="https://github.com/dotnet/runtime/blob/50ac454d8d8a1915188b2a4bb3fff3b81bf6c0cf/src/coreclr/src/jit/jitconfigvalues.h#L224"/>
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/// <remarks>
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/// <see cref="DisableSIMD"/> ends up impacting all SIMD support(including System.Numerics)
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/// but not things like <see cref="DisableBMI1"/>, <see cref="DisableBMI2"/>, and <see cref="DisableLZCNT"/>.
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/// </remarks>
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/// </summary>
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[Flags] |
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public enum HwIntrinsics |
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{ |
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// Use flags so we can pass multiple values without using params.
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DisableSIMD = 0, |
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DisableHWIntrinsic = 1 << 0, |
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DisableSSE = 1 << 1, |
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DisableSSE2 = 1 << 2, |
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DisableAES = 1 << 3, |
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DisablePCLMULQDQ = 1 << 4, |
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DisableSSE3 = 1 << 5, |
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DisableSSSE3 = 1 << 6, |
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DisableSSE41 = 1 << 7, |
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DisableSSE42 = 1 << 8, |
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DisablePOPCNT = 1 << 9, |
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DisableAVX = 1 << 10, |
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DisableFMA = 1 << 11, |
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DisableAVX2 = 1 << 12, |
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DisableBMI1 = 1 << 13, |
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DisableBMI2 = 1 << 14, |
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DisableLZCNT = 1 << 15, |
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AllowAll = 1 << 16 |
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} |
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} |
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