From 0066e824f02efce79e026f60391f3fd95214e1ac Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 23 Dec 2022 13:37:38 -0700
Subject: [PATCH] [util] Fix vertical positioning with --glyphs

---
 util/shape-options.hh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/util/shape-options.hh b/util/shape-options.hh
index d5516a293..07dc4c138 100644
--- a/util/shape-options.hh
+++ b/util/shape-options.hh
@@ -71,6 +71,10 @@ struct shape_options_t
 
     if (glyphs)
     {
+      /* Call the setup_buffer first while the buffer is empty,
+       * as guess_segment_properties doesn't like glyphs in the buffer. */
+
+      setup_buffer (buffer);
       hb_buffer_deserialize_glyphs (buffer,
 				    text, text_len,
 				    nullptr,