From 53ca7f89225f4b28c1b66ce41b8eb8536f33b33c Mon Sep 17 00:00:00 2001
From: robloo <robloo@users.noreply.github.com>
Date: Sun, 27 Feb 2022 23:56:03 -0500
Subject: [PATCH] Use custom hash algo for .NET Standard 2.0 support

---
 src/Avalonia.Visuals/Media/HsvColor.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Visuals/Media/HsvColor.cs b/src/Avalonia.Visuals/Media/HsvColor.cs
index 39ddcf7de6..c46d3bf4b8 100644
--- a/src/Avalonia.Visuals/Media/HsvColor.cs
+++ b/src/Avalonia.Visuals/Media/HsvColor.cs
@@ -143,7 +143,16 @@ namespace Avalonia.Media
         /// <returns>The hashcode for this object.</returns>
         public override int GetHashCode()
         {
-            return HashCode.Combine(A, H, S, V);
+            // Same algorithm as Color
+            // This is used instead of HashCode.Combine() due to .NET Standard 2.0 requirements
+            unchecked
+            {
+                int hashCode = A.GetHashCode();
+                hashCode = (hashCode * 397) ^ H.GetHashCode();
+                hashCode = (hashCode * 397) ^ S.GetHashCode();
+                hashCode = (hashCode * 397) ^ V.GetHashCode();
+                return hashCode;
+            }
         }
 
         /// <summary>