Revert naming

src/ImageSharp/Common/Helpers/SimdUtils.cs

@@ -38,7 +38,7 @@ internal static partial class SimdUtils
     /// </summary>
     /// <param name="v">The vector</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    internal static Vector<float> RoundToNearestInteger(this Vector<float> v)
+    internal static Vector<float> FastRound(this Vector<float> v)
     {
         if (Avx2.IsSupported && Vector<float>.Count == Vector256<float>.Count)
         {

src/ImageSharp/Formats/Jpeg/Components/Block8x8F.cs

@@ -588,6 +588,6 @@ internal partial struct Block8x8F : IEquatable<Block8x8F>
         row += off;
         row = Vector.Max(row, Vector<float>.Zero);
         row = Vector.Min(row, max);
-        return row.RoundToNearestInteger();
+        return row.FastRound();
     }
 }

tests/ImageSharp.Benchmarks/Codecs/Jpeg/BlockOperations/Block8x8F_Round.cs

@@ -67,21 +67,21 @@ public unsafe class Block8x8F_Round
         ref Block8x8F b = ref this.block;
 
         ref Vector<float> row0 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V0L);
-        row0 = row0.RoundToNearestInteger();
+        row0 = row0.FastRound();
         ref Vector<float> row1 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V1L);
-        row1 = row1.RoundToNearestInteger();
+        row1 = row1.FastRound();
         ref Vector<float> row2 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V2L);
-        row2 = row2.RoundToNearestInteger();
+        row2 = row2.FastRound();
         ref Vector<float> row3 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V3L);
-        row3 = row3.RoundToNearestInteger();
+        row3 = row3.FastRound();
         ref Vector<float> row4 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V4L);
-        row4 = row4.RoundToNearestInteger();
+        row4 = row4.FastRound();
         ref Vector<float> row5 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V5L);
-        row5 = row5.RoundToNearestInteger();
+        row5 = row5.FastRound();
         ref Vector<float> row6 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V6L);
-        row6 = row6.RoundToNearestInteger();
+        row6 = row6.FastRound();
         ref Vector<float> row7 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V7L);
-        row7 = row7.RoundToNearestInteger();
+        row7 = row7.FastRound();
     }
 
     [Benchmark]
@@ -90,21 +90,21 @@ public unsafe class Block8x8F_Round
         ref Block8x8F b = ref Unsafe.AsRef<Block8x8F>(this.alignedPtr);
 
         ref Vector<float> row0 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V0L);
-        row0 = row0.RoundToNearestInteger();
+        row0 = row0.FastRound();
         ref Vector<float> row1 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V1L);
-        row1 = row1.RoundToNearestInteger();
+        row1 = row1.FastRound();
         ref Vector<float> row2 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V2L);
-        row2 = row2.RoundToNearestInteger();
+        row2 = row2.FastRound();
         ref Vector<float> row3 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V3L);
-        row3 = row3.RoundToNearestInteger();
+        row3 = row3.FastRound();
         ref Vector<float> row4 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V4L);
-        row4 = row4.RoundToNearestInteger();
+        row4 = row4.FastRound();
         ref Vector<float> row5 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V5L);
-        row5 = row5.RoundToNearestInteger();
+        row5 = row5.FastRound();
         ref Vector<float> row6 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V6L);
-        row6 = row6.RoundToNearestInteger();
+        row6 = row6.FastRound();
         ref Vector<float> row7 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V7L);
-        row7 = row7.RoundToNearestInteger();
+        row7 = row7.FastRound();
     }
 
     [Benchmark]
@@ -117,20 +117,20 @@ public unsafe class Block8x8F_Round
         ref Vector<float> row2 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V2L);
         ref Vector<float> row3 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V3L);
 
-        row0 = row0.RoundToNearestInteger();
-        row1 = row1.RoundToNearestInteger();
-        row2 = row2.RoundToNearestInteger();
-        row3 = row3.RoundToNearestInteger();
+        row0 = row0.FastRound();
+        row1 = row1.FastRound();
+        row2 = row2.FastRound();
+        row3 = row3.FastRound();
 
         row0 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V4L);
         row1 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V5L);
         row2 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V6L);
         row3 = ref Unsafe.As<Vector4, Vector<float>>(ref b.V7L);
 
-        row0 = row0.RoundToNearestInteger();
-        row1 = row1.RoundToNearestInteger();
-        row2 = row2.RoundToNearestInteger();
-        row3 = row3.RoundToNearestInteger();
+        row0 = row0.FastRound();
+        row1 = row1.FastRound();
+        row2 = row2.FastRound();
+        row3 = row3.FastRound();
     }
 
     [Benchmark]

tests/ImageSharp.Tests/Common/SimdUtilsTests.cs

@@ -73,7 +73,7 @@ public partial class SimdUtilsTests
     public void FastRound()
     {
         Vector<float> v = CreateExactTestVector1();
-        Vector<float> r = v.RoundToNearestInteger();
+        Vector<float> r = v.FastRound();
 
         this.Output.WriteLine(r.ToString());
 
@@ -90,7 +90,7 @@ public partial class SimdUtilsTests
     public void FastRound_RandomValues(int seed, float scale)
     {
         Vector<float> v = CreateRandomTestVector(seed, -scale * 0.5f, scale * 0.5f);
-        Vector<float> r = v.RoundToNearestInteger();
+        Vector<float> r = v.FastRound();
 
         this.Output.WriteLine(v.ToString());
         this.Output.WriteLine(r.ToString());