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Fix some cases of scaled text disappearing with freetype

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Commit a56ee60791 changed type of advance
to short, restoring this fixes at least some cases where glyphs were
disappearing.

Task-number: QTBUG-65838
Change-Id: I33b252d91fb7541eaea3275b1950a048941869a6
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
This commit is contained in:
Joni Poikelin 2018-01-22 18:51:57 +02:00
parent 1f0c228448
commit b7e4367387
2 changed files with 2 additions and 4 deletions
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4
src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
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@ -994,9 +994,7 @@ int QFontEngineFT::loadFlags(QGlyphSet *set, GlyphFormat format, int flags,
static inline bool areMetricsTooLarge(const QFontEngineFT::GlyphInfo &info)
{
// false if exceeds QFontEngineFT::Glyph metrics
return (short)(info.linearAdvance) != info.linearAdvance
|| (uchar)(info.width) != info.width
|| (uchar)(info.height) != info.height;
return info.width > 0xFF || info.height > 0xFF;
}
static inline void transformBoundingBox(int *left, int *top, int *right, int *bottom, FT_Matrix *matrix)

2
src/platformsupport/fontdatabases/freetype/qfontengine_ft_p.h
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@ -133,7 +133,7 @@ public:
/* we don't cache glyphs that are too large anyway, so we can make this struct rather small */
struct Glyph {
~Glyph();
short linearAdvance;
int linearAdvance : 22;
unsigned char width;
unsigned char height;
short x;