Files
stgsharp/StgSharp.Common/Internal/Intrinsic/intrinsicContextProvider.cs
T

87 lines
3.0 KiB
C#

//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="intrinsicContextProvider"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.Internal.Intrinsic;
using System;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace StgSharp.Internal
{
internal static unsafe partial class NativeIntrinsic
{
private static readonly IntrinsicContext _intrinsicContext = new();
public static IntrinsicLevel IntrinsicLevel { get; set; }
internal static IntrinsicContext Intrinsic
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => _intrinsicContext;
}
internal static void InitIntrinsicContext()
{
int statCode;
fixed (IntrinsicContext* cPtr = &_intrinsicContext) {
statCode = LoadIntrinsicFunction(cPtr);
}
switch (statCode)
{
case 0:
Dialogue.PostError(new PlatformNotSupportedException("No SIMD instructions supported on current hardware platform"));
Environment.Exit(-1);
break;
default:
IntrinsicLevel = (IntrinsicLevel)statCode;
break;
}
}
[LibraryImport(Native.LibName, EntryPoint = "load_intrinsic_function")]
[UnmanagedCallConv(CallConvs =[ typeof(CallConvCdecl) ])]
private static partial int LoadIntrinsicFunction(IntrinsicContext* context);
}
internal enum IntrinsicLevel : sbyte
{
Non = 0,
SSE = 1,
AVX2 = 2,
AVX512 = 3,
NEON = -1
}
}