From 9c0999e9db43f4adca0174d266d9eb49fb077aea Mon Sep 17 00:00:00 2001
From: Dmitry Pentin <riotbr3aker@gmail.com>
Date: Thu, 27 May 2021 23:54:50 +0300
Subject: [PATCH] Huffman lookup tables are now integers instead of unsigned
 integers

---
 .../Formats/Jpeg/Components/Encoder/HuffmanLut.cs      | 10 +++++-----
 .../Jpeg/Components/Encoder/HuffmanScanEncoder.cs      |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanLut.cs b/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanLut.cs
index bc2c7634b5..bc6c8c6cc7 100644
--- a/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanLut.cs
+++ b/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanLut.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
@@ -44,7 +44,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
                 }
             }
 
-            this.Values = new uint[maxValue + 1];
+            this.Values = new int[maxValue + 1];
 
             int code = 0;
             int k = 0;
@@ -54,7 +54,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
                 int bits = (i + 1) << 24;
                 for (int j = 0; j < spec.Count[i]; j++)
                 {
-                    this.Values[spec.Values[k]] = (uint)(bits | code);
+                    this.Values[spec.Values[k]] = bits | code;
                     code++;
                     k++;
                 }
@@ -66,6 +66,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
         /// <summary>
         /// Gets the collection of huffman values.
         /// </summary>
-        public uint[] Values { get; }
+        public int[] Values { get; }
     }
-}
\ No newline at end of file
+}
diff --git a/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanScanEncoder.cs b/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanScanEncoder.cs
index af8192749a..0320229a2b 100644
--- a/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanScanEncoder.cs
+++ b/src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanScanEncoder.cs
@@ -344,7 +344,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
         [MethodImpl(InliningOptions.ShortMethod)]
         private void EmitHuff(int index, int value)
         {
-            int x = (int)HuffmanLut.TheHuffmanLut[index].Values[value];
+            int x = HuffmanLut.TheHuffmanLut[index].Values[value];
             this.Emit(x & ((1 << 24) - 1), x >> 24);
         }