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Round when scaling values 

Doesn't matter for most users since they should be working in a
fixed sub-pixel scale anyway (ie. 22.10, 26.6, 16.16, etc).
This commit is contained in:
Behdad Esfahbod 2013-08-09 09:40:01 -04:00
parent df8f70ae5d
commit 10f964623f
2 changed files with 5 additions and 3 deletions
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2
TODO
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@ -12,8 +12,6 @@ General fixes:
- Warn at compile time (and runtime with HB_DEBUG?) if no Unicode / font - Warn at compile time (and runtime with HB_DEBUG?) if no Unicode / font
funcs found / set. funcs found / set.
- Do proper rounding when scaling from font space? May be a non-issue.
- Misc features: - Misc features:
* init/medi/fina/isol for non-cursive scripts * init/medi/fina/isol for non-cursive scripts

6
src/hb-font-private.hh
View File

@ -461,7 +461,11 @@ struct hb_font_t {
} }
private: private:
inline hb_position_t em_scale (int16_t v, int scale) { return v * (int64_t) scale / face->get_upem (); } inline hb_position_t em_scale (int16_t v, int scale)
{
unsigned int upem = face->get_upem ();
return (v * (int64_t) scale + upem / 2) / upem;
}
}; };
#define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS #define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS