Update Adler32 to correctly filter intrinsics. Fix #1228

JimBobSquarePants · JimBobSquarePants · commit 69cd2f337d2b · 2020-06-15T13:12:12.000+01:00
diff --git a/src/ImageSharp/Formats/Png/Zlib/Adler32.cs b/src/ImageSharp/Formats/Png/Zlib/Adler32.cs
@@ -63,7 +63,7 @@ public static uint Calculate(uint adler, ReadOnlySpan<byte> buffer)
             }
 
 #if SUPPORTS_RUNTIME_INTRINSICS
-            if (Sse3.IsSupported && buffer.Length >= MinBufferSize)
+            if (Ssse3.IsSupported && buffer.Length >= MinBufferSize)
             {
                 return CalculateSse(adler, buffer);
             }

Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,7 @@ public static uint Calculate(uint adler, ReadOnlySpan<byte> buffer)`
`63`	`63`	`}`
`64`	`64`
`65`	`65`	`#if SUPPORTS_RUNTIME_INTRINSICS`
`66`		`- if (Sse3.IsSupported && buffer.Length >= MinBufferSize)`
	`66`	`+ if (Ssse3.IsSupported && buffer.Length >= MinBufferSize)`
`67`	`67`	`{`
`68`	`68`	`return CalculateSse(adler, buffer);`
`69`	`69`	`}`