Improved performance of Average on Images

HPPH.Generators/ColorFormatSourceGenerator.cs

@@ -19,7 +19,6 @@ public class ColorSourceGenerator : IIncrementalGenerator
     private static readonly IGeneratorFeature[] FEATURES =
     [
         new Colors(),
-        new Average(),
         new MinMax(),
         new Sum(),
         new Quantize()

HPPH.Generators/Features/Average.cs

@@ -1,51 +0,0 @@
-using System.Collections.Generic;
-using System.Collections.Immutable;
-
-namespace HPPH.Generators;
-
-internal class Average : IGeneratorFeature
-{
-    public IEnumerable<(string name, string source)> GenerateFor(ColorFormatData colorFormat)
-    {
-        yield return ($"ColorFormat{colorFormat.Format}.Average", GenerateColorFormatAverage(colorFormat));
-    }
-
-    public IEnumerable<(string name, string source)> GenerateFor(ImmutableArray<ColorFormatData> colorFormats)
-    {
-        yield return ("IColorFormat.Average", GenerateColorFormatInterfaceAverage());
-    }
-
-    private static string GenerateColorFormatAverage(ColorFormatData colorFormat)
-    {
-        return $$"""
-                 #nullable enable
-                 
-                 using System.Runtime.InteropServices;
-                 
-                 namespace HPPH;
-
-                 public sealed partial class ColorFormat{{colorFormat.Format}}
-                 {
-                     #region Methods
-                 
-                     unsafe IColor IColorFormat.Average(ReadOnlySpan<byte> data) => PixelHelper.Average(MemoryMarshal.Cast<byte, Color{{colorFormat.Format}}>(data));
-                 
-                     #endregion
-                 }
-                 """;
-    }
-
-    private static string GenerateColorFormatInterfaceAverage()
-    {
-        return """
-               #nullable enable
-               
-               namespace HPPH;
-               
-               public partial interface IColorFormat
-               {
-                   internal IColor Average(ReadOnlySpan<byte> data);
-               }
-               """;
-    }
-}

HPPH.Generators/Features/Colors.cs

@@ -218,6 +218,12 @@ internal class Colors : IGeneratorFeature
                      private ColorFormat{{colorFormat.Format}}() {}
                  
                      #endregion
+                     
+                     #region Methods
+                     
+                     public IColor CreateColor(byte r, byte g, byte b, byte a) => Color{{colorFormat.Format}}.Create(r, g, b, a);
+                     
+                     #endregion
                  }
                  """;
     }
@@ -243,6 +249,8 @@ internal class Colors : IGeneratorFeature
         sb.AppendLine();
 
         sb.AppendLine("""
+                          IColor CreateColor(byte r, byte g, byte b, byte a);
+                      
                           #endregion
                       }
                       """);