better kernel fma

StgSharp.Common/Internal/Intrinsic/SIMDID.cs

@@ -0,0 +1,51 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="SIMDID"
+// 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 System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.Internal.Intrinsic
+{
+    [StructLayout(LayoutKind.Explicit)]
+    internal unsafe struct SIMDID
+    {
+
+        [FieldOffset(0)]public fixed byte MaskByte[16];
+        [FieldOffset(0)]public ulong Mask;
+
+        public SIMDID()
+        {
+            Unsafe.SkipInit(out this);
+        }
+
+    }
+}

StgSharp.Common/Internal/Intrinsic/intrinsicContextProvider.cs

@@ -39,7 +39,7 @@ namespace StgSharp.Internal
 
         private static readonly IntrinsicContext _intrinsicContext = new();
 
-        public static IntrinsicLevel IntrinsicLevel { get; set; }
+        public static SIMDID IntrinsicMask { get; set; }
 
         internal static IntrinsicContext Context
         {
@@ -49,39 +49,32 @@ namespace StgSharp.Internal
 
         internal static void InitIntrinsicContext()
         {
-            int statCode;
+            ulong statCode = 0;
 
             fixed (IntrinsicContext* cPtr = &_intrinsicContext) {
                 statCode = LoadIntrinsicFunction(cPtr);
             }
-
-            switch (statCode)
+            SIMDID id = new()
+            {
+                Mask = statCode
+            };
+            switch (id.MaskByte[1])
             {
                 case 0:
-
                     Dialogue.PostError(new PlatformNotSupportedException("No SIMD instructions supported on current hardware platform"));
                     Environment.Exit(-1);
                     break;
                 default:
-                    IntrinsicLevel = (IntrinsicLevel)statCode;
                     break;
             }
+            IntrinsicMask = id;
         }
 
         [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
+        private static partial ulong LoadIntrinsicFunction(
+                                     IntrinsicContext* context
+        );
 
     }
 }