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Code Issues Releases Wiki Activity

Don't apply windows-like font scaling if hhea or os2 tables contain invalid 

metrics.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24003 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
eugeni 2007-08-03 15:39:38 +00:00
parent 6f90765a40
commit dc0541c142
1 changed files with 6 additions and 2 deletions
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8
libass/ass_font.c
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@ -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;