From 407440645ba70f1d0e09f3e120a84c43fbf72418 Mon Sep 17 00:00:00 2001
From: Benedikt Stebner <Gillibald@users.noreply.github.com>
Date: Tue, 19 Sep 2023 21:02:14 +0200
Subject: [PATCH] Correctly compare source and destination pixel format
 (#12940)

---
 src/Avalonia.Base/Media/Imaging/Bitmap.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Base/Media/Imaging/Bitmap.cs b/src/Avalonia.Base/Media/Imaging/Bitmap.cs
index 215586eef9..abf12ad686 100644
--- a/src/Avalonia.Base/Media/Imaging/Bitmap.cs
+++ b/src/Avalonia.Base/Media/Imaging/Bitmap.cs
@@ -241,7 +241,7 @@ namespace Avalonia.Media.Imaging
                 throw new NotSupportedException("CopyPixels is not supported for this bitmap type");
             }
 
-            if (readable.Format != Format || readable.AlphaFormat != alphaFormat)
+            if (buffer.Format != readable.Format || alphaFormat != readable.AlphaFormat)
             {
                 using (var fb = readable.Lock())
                 {