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Avoid Freetype synthesizing for large font sizes

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Freetype's fake emboldening does not give good results for large font
sizes.

Pick-to: 5.15
Fixes: QTBUG-84570
Change-Id: I1a7722c1482e3450e5a549c31c9766d930fcd13a
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
This commit is contained in:
Eirik Aavitsland 2020-06-22 12:12:45 +02:00
parent b862788e62
commit f5c132ef28
1 changed files with 1 additions and 1 deletions
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2
src/gui/text/freetype/qfontengine_ft.cpp
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@ -750,7 +750,7 @@ bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat format,
// fake bold
if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face) && !qEnvironmentVariableIsSet("QT_NO_SYNTHESIZED_BOLD")) {
if (const TT_OS2 *os2 = reinterpret_cast<const TT_OS2 *>(FT_Get_Sfnt_Table(face, ft_sfnt_os2))) {
if (os2->usWeightClass < 700)
if (os2->usWeightClass < 700 && fontDef.pixelSize < 64)
embolden = true;
}
}