From 6d8cd15f3278adc01cc59758d5d70ecb77598cda Mon Sep 17 00:00:00 2001
From: Sergio Pedri <sergio0694@live.com>
Date: Thu, 26 Dec 2019 11:29:21 +0100
Subject: [PATCH] Added overloads with custom pixel modifiers in pixel shading
 extensions

---
 .../Extensions/PixelShaderExtensions.cs       | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/src/ImageSharp/Processing/Extensions/PixelShaderExtensions.cs b/src/ImageSharp/Processing/Extensions/PixelShaderExtensions.cs
index 30848e346..b866e7fb1 100644
--- a/src/ImageSharp/Processing/Extensions/PixelShaderExtensions.cs
+++ b/src/ImageSharp/Processing/Extensions/PixelShaderExtensions.cs
@@ -1,6 +1,7 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
+using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing.Processors.Effects;
 using SixLabors.Primitives;
 
@@ -20,6 +21,16 @@ namespace SixLabors.ImageSharp.Processing
         public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PixelShader pixelShader)
             => source.ApplyProcessor(new PixelShaderProcessor(pixelShader));
 
+        /// <summary>
+        /// Applies a user defined pixel shader to the image.
+        /// </summary>
+        /// <param name="source">The image this method extends.</param>
+        /// <param name="pixelShader">The user defined pixel shader to use to modify images.</param>
+        /// <param name="modifiers">The <see cref="PixelConversionModifiers"/> to apply during the pixel conversions.</param>
+        /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
+        public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PixelShader pixelShader, PixelConversionModifiers modifiers)
+            => source.ApplyProcessor(new PixelShaderProcessor(pixelShader, modifiers));
+
         /// <summary>
         /// Applies a user defined pixel shader to the image.
         /// </summary>
@@ -32,6 +43,19 @@ namespace SixLabors.ImageSharp.Processing
         public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PixelShader pixelShader, Rectangle rectangle)
             => source.ApplyProcessor(new PixelShaderProcessor(pixelShader), rectangle);
 
+        /// <summary>
+        /// Applies a user defined pixel shader to the image.
+        /// </summary>
+        /// <param name="source">The image this method extends.</param>
+        /// <param name="pixelShader">The user defined pixel shader to use to modify images.</param>
+        /// <param name="rectangle">
+        /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
+        /// </param>
+        /// <param name="modifiers">The <see cref="PixelConversionModifiers"/> to apply during the pixel conversions.</param>
+        /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
+        public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PixelShader pixelShader, Rectangle rectangle, PixelConversionModifiers modifiers)
+            => source.ApplyProcessor(new PixelShaderProcessor(pixelShader, modifiers), rectangle);
+
         /// <summary>
         /// Applies a user defined pixel shader to the image.
         /// </summary>
@@ -41,6 +65,16 @@ namespace SixLabors.ImageSharp.Processing
         public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PositionAwarePixelShader pixelShader)
             => source.ApplyProcessor(new PositionAwarePixelShaderProcessor(pixelShader));
 
+        /// <summary>
+        /// Applies a user defined pixel shader to the image.
+        /// </summary>
+        /// <param name="source">The image this method extends.</param>
+        /// <param name="pixelShader">The user defined pixel shader to use to modify images.</param>
+        /// <param name="modifiers">The <see cref="PixelConversionModifiers"/> to apply during the pixel conversions.</param>
+        /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
+        public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PositionAwarePixelShader pixelShader, PixelConversionModifiers modifiers)
+            => source.ApplyProcessor(new PositionAwarePixelShaderProcessor(pixelShader, modifiers));
+
         /// <summary>
         /// Applies a user defined pixel shader to the image.
         /// </summary>
@@ -52,5 +86,18 @@ namespace SixLabors.ImageSharp.Processing
         /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
         public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PositionAwarePixelShader pixelShader, Rectangle rectangle)
             => source.ApplyProcessor(new PositionAwarePixelShaderProcessor(pixelShader), rectangle);
+
+        /// <summary>
+        /// Applies a user defined pixel shader to the image.
+        /// </summary>
+        /// <param name="source">The image this method extends.</param>
+        /// <param name="pixelShader">The user defined pixel shader to use to modify images.</param>
+        /// <param name="rectangle">
+        /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
+        /// </param>
+        /// <param name="modifiers">The <see cref="PixelConversionModifiers"/> to apply during the pixel conversions.</param>
+        /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
+        public static IImageProcessingContext ApplyPixelShaderProcessor(this IImageProcessingContext source, PositionAwarePixelShader pixelShader, Rectangle rectangle, PixelConversionModifiers modifiers)
+            => source.ApplyProcessor(new PositionAwarePixelShaderProcessor(pixelShader, modifiers), rectangle);
     }
 }