Merge pull request #357 from SixLabors/js/v2-fix-355

Only apply swap for non-horizontal layout
SixLabors · Sep 15, 2023 · a70c2be · a70c2be
2 parents de9c95c + df4a56f
commit a70c2be
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/SixLabors.Fonts/TextLayout.cs b/src/SixLabors.Fonts/TextLayout.cs
@@ -825,6 +825,11 @@ private static void SubstituteBidiMirrors(FontMetrics fontMetrics, GlyphSubstitu
 
         // TODO: This only replaces certain glyphs. We should investigate the specification further.
         // https://www.unicode.org/reports/tr50/#vertical_alternates
+        if (collection.TextOptions.LayoutMode.IsHorizontal())
+        {
+            return;
+        }
+
         for (int i = 0; i < collection.Count; i++)
         {
             GlyphShapingData data = collection[i];