Merge from branch giga

StgSharp.Common/Internal/Intrinsic/intrinsicContextProvider.cs

@@ -1,33 +1,33 @@
 //-----------------------------------------------------------------------
-//-----------------------------------------------------------------------
-//     file="intrinsicContextProvider.cs"
-//     Project: StgSharp
-//     AuthorGroup: Nitload Space
-//     Copyright (c) Nitload Space. All rights reserved.
+// -----------------------------------------------------------------------
+// file="intrinsicContextProvider.cs"
+// Project: StgSharp
+// AuthorGroup: Nitload Space
+// Copyright (c) Nitload Space. 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:
+// 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 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.
+// 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;
@@ -40,10 +40,13 @@ namespace StgSharp.Internal
     internal static unsafe partial class InternalIO
     {
 
-        private static readonly IntrinsicContext _intrinsicContext = new IntrinsicContext();
+        private static readonly IntrinsicContext _intrinsicContext = new();
+
+        public static IntrinsicLevel IntrinsicLevel { get; set; }
 
         internal static IntrinsicContext Intrinsic
         {
+[MethodImpl(MethodImplOptions.AggressiveInlining)]
             get => _intrinsicContext;
         }
 
@@ -51,25 +54,37 @@ namespace StgSharp.Internal
         {
             int statCode;
 
-            fixed( IntrinsicContext* cptr = &_intrinsicContext ) {
-                statCode = LoadIntrinsicFunction( cptr );
+            fixed (IntrinsicContext* cPtr = &_intrinsicContext) {
+                statCode = LoadIntrinsicFunction(cPtr);
             }
 
-            switch( statCode )
+            switch (statCode)
             {
                 case 0:
 
-                    //Dialogue.PostError(new PlatformNotSupportedException("No SIMD instructions supported on current hardware platform"));
-                    Environment.Exit( -1 );
+                    // Dialogue.PostError(new PlatformNotSupportedException("No SIMD instructions supported on current hardware platform"));
+                    Environment.Exit(-1);
                     break;
                 default:
+                    IntrinsicLevel = (IntrinsicLevel)statCode;
                     break;
             }
         }
 
-        [LibraryImport( NativeLibName, EntryPoint = "load_intrinsic_function" )]
-        [UnmanagedCallConv( CallConvs = [typeof( CallConvCdecl )] )]
-        private static partial int LoadIntrinsicFunction( IntrinsicContext* context );
+        [LibraryImport(NativeLibName, 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
 
     }
 }