Round underline position and thickness

* src/sfntfont.c (sfntfont_open): Round underline thickness
instead of truncating it, as is proper according to several
inquiries.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/sfntfont.c b/src/sfntfont.c
index 80fbde9772c..39b250ac11e 100644
--- a/src/sfntfont.c
+++ b/src/sfntfont.c
@@ -3287,10 +3287,10 @@ sfntfont_open (struct frame *f, Lisp_Object font_entity,
     {
       font_info->font.underline_position
         = sfnt_coerce_fixed (-desc->underline_position
-                             * font_info->scale);
+                             * font_info->scale) + 0.5;
       font_info->font.underline_thickness
         = sfnt_coerce_fixed (desc->underline_thickness
-                             * font_info->scale);
+                             * font_info->scale) + 0.5;
     }
 
   /* Now try to set up grid fitting for this font.  */