reference encoder is unnecessary

tests/ImageSharp.Tests/TestUtilities/ReferenceCodecs/MagickReferenceEncoder.cs

@@ -1,60 +0,0 @@
-// Copyright (c) Six Labors and contributors.
-// Licensed under the Apache License, Version 2.0.
-
-using System;
-using System.IO;
-
-using SixLabors.ImageSharp.Formats;
-using SixLabors.ImageSharp.PixelFormats;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-using ImageMagick;
-
-using SixLabors.ImageSharp.Advanced;
-
-namespace SixLabors.ImageSharp.Tests.TestUtilities.ReferenceCodecs
-{
-    public class MagickReferenceEncoder : IImageEncoder
-    {
-        public MagickReferenceEncoder(MagickFormat format)
-        {
-            this.Format = format;
-        }
-
-        public MagickFormat Format { get; }
-
-        public void Encode<TPixel>(Image<TPixel> image, Stream stream)
-            where TPixel : struct, IPixel<TPixel>
-        {
-            var black = MagickColor.FromRgba(0, 0, 0, 255);
-            using (var magickImage = new MagickImage(black, image.Width, image.Height))
-            {
-                bool isDeep = Unsafe.SizeOf<TPixel>() > 4;
-
-                magickImage.Depth = isDeep ? 16 : 8;
-
-                Span<TPixel> allPixels = image.GetPixelSpan();
-
-                using (IPixelCollection magickPixels = magickImage.GetPixelsUnsafe())
-                {
-                    if (isDeep)
-                    {
-                        ushort[] data = new ushort[allPixels.Length * 4];
-                        Span<Rgba64> dataSpan = MemoryMarshal.Cast<ushort, Rgba64>(data);
-                        PixelOperations<TPixel>.Instance.ToRgba64(allPixels, dataSpan, allPixels.Length);
-                        magickPixels.SetPixels(data);
-                    }
-                    else
-                    {
-                        byte[] data = new byte[allPixels.Length * 4];
-                        PixelOperations<TPixel>.Instance.ToRgba32Bytes(allPixels, data, allPixels.Length);
-                        magickPixels.SetPixels(data);
-                    }
-                }
-
-                magickImage.Write(stream, this.Format);
-            }
-        }
-    }
-}

tests/ImageSharp.Tests/TestUtilities/Tests/MagickReferenceCodecTests.cs

@@ -1,7 +1,6 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
-using ImageMagick;
 using Xunit;
 // ReSharper disable InconsistentNaming
 
@@ -86,21 +85,5 @@ namespace SixLabors.ImageSharp.Tests.TestUtilities.Tests
                 }
             }
         }
-
-        [Theory]
-        [WithTestPatternImages(100, 100, PixelTypesToTest32, MagickFormat.Png)]
-        [WithTestPatternImages(100, 100, PixelTypesToTest32, MagickFormat.Jpg)]
-        public void MagickEncode_8BitDepthImage<TPixel>(TestImageProvider<TPixel> provider, MagickFormat format)
-            where TPixel : struct, IPixel<TPixel>
-        {
-            string extension = format.ToString().ToLower();
-
-            var encoder = new MagickReferenceEncoder(format);
-
-            using (Image<TPixel> image = provider.GetImage())
-            {
-                image.VerifyEncoder(provider, extension, $"{format}", encoder, referenceDecoder: new SystemDrawingReferenceDecoder());
-            }
-        }
     }
 }