From e321a5054c5cf682ddafc5f215f6959a0d2aa73b Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Sun, 6 Dec 2020 00:27:14 +0000
Subject: [PATCH] Use faster GetSpan()

---
 .../Allocators/ArrayPoolMemoryAllocator.Buffer{T}.cs       | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ImageSharp/Memory/Allocators/ArrayPoolMemoryAllocator.Buffer{T}.cs b/src/ImageSharp/Memory/Allocators/ArrayPoolMemoryAllocator.Buffer{T}.cs
index a7a51f77d..0c35c8828 100644
--- a/src/ImageSharp/Memory/Allocators/ArrayPoolMemoryAllocator.Buffer{T}.cs
+++ b/src/ImageSharp/Memory/Allocators/ArrayPoolMemoryAllocator.Buffer{T}.cs
@@ -53,8 +53,13 @@ namespace SixLabors.ImageSharp.Memory
                 {
                     ThrowObjectDisposedException();
                 }
-
+#if SUPPORTS_CREATESPAN
+                ref byte r0 = ref MemoryMarshal.GetReference<byte>(this.Data);
+                return MemoryMarshal.CreateSpan(ref Unsafe.As<byte, T>(ref r0), this.length);
+#else
                 return MemoryMarshal.Cast<byte, T>(this.Data.AsSpan()).Slice(0, this.length);
+#endif
+
             }
 
             /// <inheritdoc />