diff options
Diffstat (limited to 'libass')
-rw-r--r-- | libass/ass_font.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libass/ass_font.c b/libass/ass_font.c index b93c41e1b1..c434da7ca6 100644 --- a/libass/ass_font.c +++ b/libass/ass_font.c @@ -204,8 +204,12 @@ static void face_set_size(FT_Face face, double size) FT_Size_Metrics *m = &face->size->metrics; // VSFilter uses metrics from TrueType OS/2 table // The idea was borrowed from asa (http://asa.diac24.net) - if (hori && os2) - mscale = ((double)(hori->Ascender - hori->Descender)) / (os2->usWinAscent + os2->usWinDescent); + if (hori && os2) { + int hori_height = hori->Ascender - hori->Descender; + int os2_height = os2->usWinAscent + os2->usWinDescent; + if (hori_height && os2_height) + mscale = (double)hori_height / os2_height; + } memset(&rq, 0, sizeof(rq)); rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM; rq.width = 0; |