Make GetColorConverter() virtual

Author: brianpopow

src/ImageSharp/Formats/Jpeg/Components/Decoder/SpectralConverter.cs

@@ -39,6 +39,6 @@ internal abstract class SpectralConverter
         /// <param name="frame">The jpeg frame with the color space to convert to.</param>
         /// <param name="jpegData">The raw JPEG data.</param>
         /// <returns>The color converter.</returns>
-        public abstract JpegColorConverter GetConverter(JpegFrame frame, IRawJpegData jpegData);
+        public virtual JpegColorConverter GetColorConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(jpegData.ColorSpace, frame.Precision);
     }
 }

src/ImageSharp/Formats/Jpeg/Components/Decoder/SpectralConverter{TPixel}.cs

@@ -86,7 +86,7 @@ public override void InjectFrameData(JpegFrame frame, IRawJpegData jpegData)
             this.rgbaBuffer = allocator.Allocate<Vector4>(frame.PixelWidth);
 
             // color converter from Rgba32 to TPixel
-            this.colorConverter = this.GetConverter(frame, jpegData);
+            this.colorConverter = this.GetColorConverter(frame, jpegData);
         }
 
         /// <inheritdoc/>
@@ -105,9 +105,6 @@ public override void ConvertStrideBaseline()
             }
         }
 
-        /// <inheritdoc/>
-        public override JpegColorConverter GetConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(jpegData.ColorSpace, frame.Precision);
-
         public void Dispose()
         {
             if (this.componentProcessors != null)

src/ImageSharp/Formats/Tiff/Compression/Decompressors/RgbJpegSpectralConverter.cs

@@ -28,6 +28,6 @@ public RgbJpegSpectralConverter(Configuration configuration, CancellationToken c
         }
 
         /// <inheritdoc/>
-        public override JpegColorConverter GetConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(JpegColorSpace.RGB, frame.Precision);
+        public override JpegColorConverter GetColorConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(JpegColorSpace.RGB, frame.Precision);
     }
 }

tests/ImageSharp.Benchmarks/Codecs/Jpeg/DecodeJpegParseStreamOnly.cs

@@ -5,7 +5,6 @@
 using BenchmarkDotNet.Attributes;
 using SixLabors.ImageSharp.Formats.Jpeg;
 using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder;
-using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.ColorConverters;
 using SixLabors.ImageSharp.IO;
 using SixLabors.ImageSharp.Tests;
 using SDSize = System.Drawing.Size;
@@ -59,8 +58,6 @@ public override void ConvertStrideBaseline()
             public override void InjectFrameData(JpegFrame frame, IRawJpegData jpegData)
             {
             }
-
-            public override JpegColorConverter GetConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(jpegData.ColorSpace, frame.Precision);
         }
     }
 }

tests/ImageSharp.Tests/Formats/Jpg/SpectralJpegTests.cs

@@ -7,7 +7,6 @@
 using SixLabors.ImageSharp.Formats.Jpeg;
 using SixLabors.ImageSharp.Formats.Jpeg.Components;
 using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder;
-using SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder.ColorConverters;
 using SixLabors.ImageSharp.IO;
 using SixLabors.ImageSharp.Memory;
 using SixLabors.ImageSharp.PixelFormats;
@@ -201,8 +200,6 @@ public override void InjectFrameData(JpegFrame frame, IRawJpegData jpegData)
 
                 this.spectralData = new LibJpegTools.SpectralData(spectralComponents);
             }
-
-            public override JpegColorConverter GetConverter(JpegFrame frame, IRawJpegData jpegData) => JpegColorConverter.GetConverter(jpegData.ColorSpace, frame.Precision);
         }
     }
 }