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dwrite: Handle fonts with broken usWinDescent values.

This commit is contained in:
Nikolay Sivov 2015-09-27 22:53:42 +03:00 committed by Alexandre Julliard
parent af5884ffe5
commit 5cb954aa6a
1 changed files with 3 additions and 1 deletions
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4
dlls/dwrite/opentype.c
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@ -960,7 +960,9 @@ void opentype_get_font_metrics(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_T
USHORT version = GET_BE_WORD(tt_os2->version);
metrics->ascent = GET_BE_WORD(tt_os2->usWinAscent);
metrics->descent = GET_BE_WORD(tt_os2->usWinDescent);
/* Some fonts have usWinDescent value stored as signed short, which could be wrongly
interpreted as large unsigned value. */
metrics->descent = abs((SHORT)GET_BE_WORD(tt_os2->usWinDescent));
/* line gap is estimated using two sets of ascender/descender values and 'hhea' line gap */
if (tt_hhea) {