From 6da4b80e5f303bf40c295c4888ba3dc48bd28f4b Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 22 Dec 2021 21:51:03 -0700
Subject: [PATCH] [hb-ot-var] Specify normalized 2.14 docs

Fixes https://github.com/harfbuzz/harfbuzz/issues/3345
---
 src/hb-ot-var.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hb-ot-var.cc b/src/hb-ot-var.cc
index 6b42b45cd..0376e26b4 100644
--- a/src/hb-ot-var.cc
+++ b/src/hb-ot-var.cc
@@ -303,6 +303,9 @@ hb_ot_var_normalize_variations (hb_face_t            *face,
  * values for the axis are mapped to the interval [-1,1], with the default
  * axis value mapped to 0.
  *
+ * The normalized values have 14 bits of fixed-point sub-integer precision as per
+ * OpenType specification.
+ *
  * Any additional scaling defined in the face's `avar` table is also
  * applied, as described at https://docs.microsoft.com/en-us/typography/opentype/spec/avar
  *