From 429696bd5e0ae1a5a872d8711c305228799726f9 Mon Sep 17 00:00:00 2001
From: Nicolas Portmann <ndportmann@gmail.com>
Date: Sun, 17 Jan 2021 14:55:21 +0100
Subject: [PATCH] Fix mistakes in final touches

---
 .../Jpeg/Components/Encoder/RgbToYCbCrConverterVectorized.cs  | 4 ++--
 .../Jpeg/Components/Encoder/YCbCrForwardConverter{TPixel}.cs  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ImageSharp/Formats/Jpeg/Components/Encoder/RgbToYCbCrConverterVectorized.cs b/src/ImageSharp/Formats/Jpeg/Components/Encoder/RgbToYCbCrConverterVectorized.cs
index 068c3db964..ddaa2069ed 100644
--- a/src/ImageSharp/Formats/Jpeg/Components/Encoder/RgbToYCbCrConverterVectorized.cs
+++ b/src/ImageSharp/Formats/Jpeg/Components/Encoder/RgbToYCbCrConverterVectorized.cs
@@ -169,11 +169,11 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
 
                     Vector256<float> tmpCb = Avx.Permute2x128(cb0, cb1, 0b0010_0001);
                     Unsafe.Add(ref destCbRef, j) = Avx.Blend(cb0, tmpCb, 0b1111_0000);
-                    Unsafe.Add(ref destCbRef, j + 2) = Avx.Blend(cb0, tmpCb, 0b0000_1111);
+                    Unsafe.Add(ref destCbRef, j + 2) = Avx.Blend(cb1, tmpCb, 0b0000_1111);
 
                     Vector256<float> tmpCr = Avx.Permute2x128(cr0, cr1, 0b0010_0001);
                     Unsafe.Add(ref destCrRef, j) = Avx.Blend(cr0, tmpCr, 0b1111_0000);
-                    Unsafe.Add(ref destCrRef, j + 2) = Avx.Blend(cr0, tmpCr, 0b0000_1111);
+                    Unsafe.Add(ref destCrRef, j + 2) = Avx.Blend(cr1, tmpCr, 0b0000_1111);
                 }
             }
         }
diff --git a/src/ImageSharp/Formats/Jpeg/Components/Encoder/YCbCrForwardConverter{TPixel}.cs b/src/ImageSharp/Formats/Jpeg/Components/Encoder/YCbCrForwardConverter{TPixel}.cs
index b658993278..8fcc63c6aa 100644
--- a/src/ImageSharp/Formats/Jpeg/Components/Encoder/YCbCrForwardConverter{TPixel}.cs
+++ b/src/ImageSharp/Formats/Jpeg/Components/Encoder/YCbCrForwardConverter{TPixel}.cs
@@ -47,7 +47,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
         public static YCbCrForwardConverter<TPixel> Create()
         {
             var result = default(YCbCrForwardConverter<TPixel>);
-            if (RgbToYCbCrConverterVectorized.IsSupported)
+            if (!RgbToYCbCrConverterVectorized.IsSupported)
             {
                 // Avoid creating lookup tables, when vectorized converter is supported
                 result.colorTables = RgbToYCbCrConverterLut.Create();