diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh index 8da40a992e9..0b755779490 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-font-private.hh @@ -505,7 +505,13 @@ struct hb_font_t { } private: - inline hb_position_t em_scale (int16_t v, int scale) { return (hb_position_t) (v * (int64_t) scale / face->get_upem ()); } + inline hb_position_t em_scale (int16_t v, int scale) + { + int upem = face->get_upem (); + int64_t scaled = v * (int64_t) scale; + scaled += scaled >= 0 ? upem/2 : -upem/2; /* Round. */ + return (hb_position_t) (scaled / upem); + } }; #define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS |