Nikolay Sivov : dwrite: Handle fonts with broken usWinDescent values.
Module: wine Branch: master Commit: 5cb954aa6aa60464a364b645227a3d00d2295740 URL: http://source.winehq.org/git/wine.git/?a=commit;h=5cb954aa6aa60464a364b64522... Author: Nikolay Sivov <nsivov(a)codeweavers.com> Date: Sun Sep 27 22:53:42 2015 +0300 dwrite: Handle fonts with broken usWinDescent values. --- dlls/dwrite/opentype.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/dlls/dwrite/opentype.c b/dlls/dwrite/opentype.c index fd471ef..82e0a9c 100644 --- a/dlls/dwrite/opentype.c +++ b/dlls/dwrite/opentype.c @@ -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) {
participants (1)
-
Alexandre Julliard