Remove unnecessary code

src/ImageSharp/Common/Helpers/Buffer2DUtils.cs

@@ -1,109 +0,0 @@
-// Copyright (c) Six Labors.
-// Licensed under the Apache License, Version 2.0.
-
-using System;
-using System.Numerics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-using SixLabors.ImageSharp.Memory;
-using SixLabors.ImageSharp.PixelFormats;
-
-namespace SixLabors.ImageSharp
-{
-    /// <summary>
-    /// Extension methods for <see cref="Buffer2D{T}"/>.
-    /// TODO: One day rewrite all this to use SIMD intrinsics. There's a lot of scope for improvement.
-    /// </summary>
-    internal static class Buffer2DUtils
-    {
-        /// <summary>
-        /// Computes the sum of vectors in <paramref name="targetRow"/> weighted by the kernel weight values.
-        /// </summary>
-        /// <typeparam name="TPixel">The pixel format.</typeparam>
-        /// <param name="kernel">The 1D convolution kernel.</param>
-        /// <param name="sourcePixels">The source frame.</param>
-        /// <param name="targetRow">The target row.</param>
-        /// <param name="row">The current row.</param>
-        /// <param name="column">The current column.</param>
-        /// <param name="minRow">The minimum working area row.</param>
-        /// <param name="maxRow">The maximum working area row.</param>
-        /// <param name="minColumn">The minimum working area column.</param>
-        /// <param name="maxColumn">The maximum working area column.</param>
-        public static void Convolve4<TPixel>(
-            Span<Complex64> kernel,
-            Buffer2D<TPixel> sourcePixels,
-            Span<ComplexVector4> targetRow,
-            int row,
-            int column,
-            int minRow,
-            int maxRow,
-            int minColumn,
-            int maxColumn)
-            where TPixel : unmanaged, IPixel<TPixel>
-        {
-            ComplexVector4 vector = default;
-            int kernelLength = kernel.Length;
-            int radiusY = kernelLength >> 1;
-            int sourceOffsetColumnBase = column + minColumn;
-            ref Complex64 baseRef = ref MemoryMarshal.GetReference(kernel);
-
-            for (int i = 0; i < kernelLength; i++)
-            {
-                int offsetY = Numerics.Clamp(row + i - radiusY, minRow, maxRow);
-                int offsetX = Numerics.Clamp(sourceOffsetColumnBase, minColumn, maxColumn);
-                Span<TPixel> sourceRowSpan = sourcePixels.GetRowSpan(offsetY);
-                var currentColor = sourceRowSpan[offsetX].ToVector4();
-
-                vector.Sum(Unsafe.Add(ref baseRef, i) * currentColor);
-            }
-
-            targetRow[column] = vector;
-        }
-
-        /// <summary>
-        /// Computes the sum of vectors in <paramref name="targetRow"/> weighted by the kernel weight values and accumulates the partial results.
-        /// </summary>
-        /// <param name="kernel">The 1D convolution kernel.</param>
-        /// <param name="sourceValues">The source frame.</param>
-        /// <param name="targetRow">The target row.</param>
-        /// <param name="row">The current row.</param>
-        /// <param name="column">The current column.</param>
-        /// <param name="minRow">The minimum working area row.</param>
-        /// <param name="maxRow">The maximum working area row.</param>
-        /// <param name="minColumn">The minimum working area column.</param>
-        /// <param name="maxColumn">The maximum working area column.</param>
-        /// <param name="z">The weight factor for the real component of the complex pixel values.</param>
-        /// <param name="w">The weight factor for the imaginary component of the complex pixel values.</param>
-        public static void Convolve4AndAccumulatePartials(
-            Span<Complex64> kernel,
-            Buffer2D<ComplexVector4> sourceValues,
-            Span<Vector4> targetRow,
-            int row,
-            int column,
-            int minRow,
-            int maxRow,
-            int minColumn,
-            int maxColumn,
-            float z,
-            float w)
-        {
-            ComplexVector4 vector = default;
-            int kernelLength = kernel.Length;
-            int radiusX = kernelLength >> 1;
-            int sourceOffsetColumnBase = column + minColumn;
-
-            int offsetY = Numerics.Clamp(row, minRow, maxRow);
-            ref ComplexVector4 sourceRef = ref MemoryMarshal.GetReference(sourceValues.GetRowSpan(offsetY));
-            ref Complex64 baseRef = ref MemoryMarshal.GetReference(kernel);
-
-            for (int x = 0; x < kernelLength; x++)
-            {
-                int offsetX = Numerics.Clamp(sourceOffsetColumnBase + x - radiusX, minColumn, maxColumn);
-                vector.Sum(Unsafe.Add(ref baseRef, x) * Unsafe.Add(ref sourceRef, offsetX));
-            }
-
-            targetRow[column] += vector.WeightedSum(z, w);
-        }
-    }
-}