From 492e233d975d4be1d90085448ac7cf31daec3bc3 Mon Sep 17 00:00:00 2001
From: Anton Firszov <antonfir@gmail.com>
Date: Tue, 4 Feb 2020 03:47:54 +0100
Subject: [PATCH] Actually resize a 30k x 30k image

---
 src/ImageSharp/ImageFrame{TPixel}.cs          |  6 +++---
 .../Image/LargeImageIntegrationTests.cs       | 21 +++++++++++++++++++
 2 files changed, 24 insertions(+), 3 deletions(-)
 create mode 100644 tests/ImageSharp.Tests/Image/LargeImageIntegrationTests.cs

diff --git a/src/ImageSharp/ImageFrame{TPixel}.cs b/src/ImageSharp/ImageFrame{TPixel}.cs
index 0d69b7666..abeb00f74 100644
--- a/src/ImageSharp/ImageFrame{TPixel}.cs
+++ b/src/ImageSharp/ImageFrame{TPixel}.cs
@@ -284,15 +284,15 @@ namespace SixLabors.ImageSharp
         /// <param name="value">The value to initialize the bitmap with.</param>
         internal void Clear(TPixel value)
         {
-            Span<TPixel> span = this.GetPixelSpan();
+            MemoryGroup<TPixel> group = this.PixelBuffer.MemoryGroup;
 
             if (value.Equals(default))
             {
-                span.Clear();
+                group.Clear();
             }
             else
             {
-                span.Fill(value);
+                group.Fill(value);
             }
         }
     }
diff --git a/tests/ImageSharp.Tests/Image/LargeImageIntegrationTests.cs b/tests/ImageSharp.Tests/Image/LargeImageIntegrationTests.cs
new file mode 100644
index 000000000..c8a8baf1d
--- /dev/null
+++ b/tests/ImageSharp.Tests/Image/LargeImageIntegrationTests.cs
@@ -0,0 +1,21 @@
+// Copyright (c) Six Labors and contributors.
+// Licensed under the Apache License, Version 2.0.
+
+using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
+using Xunit;
+
+namespace SixLabors.ImageSharp.Tests
+{
+    public class LargeImageIntegrationTests
+    {
+        [Theory(Skip = "For local testing only.")]
+        [WithBasicTestPatternImages(width: 30000, height: 30000, PixelTypes.Rgba32)]
+        public void CreateAndResize(TestImageProvider<Rgba32> provider)
+        {
+            using Image<Rgba32> image = provider.GetImage();
+            image.Mutate(c => c.Resize(1000, 1000));
+            image.DebugSave(provider);
+        }
+    }
+}