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CHANGES: Add information on global metrics rounding.

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I missed to add this important information.
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Werner Lemberg 2017-07-12 10:48:41 +02:00
parent 3d083fc213
commit 229a5535b5
1 changed files with 14 additions and 0 deletions
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@ -44,6 +44,20 @@ CHANGES BETWEEN 2.7.1 and 2.8
configuration option. However, it is strongly recommended to
avoid that, adjusting font sizes instead.
- Global size metrics values in the `FT_Size_Metrics' structure
can be different for TrueType fonts. Reason is that in older
FreeType versions the metrics were rounded differently to
integer pixels compared to all other font formats, yielding an
inconsistent behaviour if you used non-native hinting. Starting
with this version, global size metrics for TrueType fonts are
handled the same as other font formats: `ascender' gets rounded
up, `descender' gets rounded down, `height' gets normally
rounded, and `max_advance' gets normally rounded, too.
If you need more precise values of (global) ascender, descender,
height, or `max_advance', please take the corresponding values
from the `FT_Face' structure and scale them manually.
- If a TrueType font gets loaded with FT_LOAD_NO_HINTING, FreeType
now scales the font linearly again (bug introduced in version
2.4.6).