Re: [Devel] Unpatented Hinting

[Werner LEMBERG]

> recently I tested the unpatented hinting method. Unlike to the given
> Information in the mailing list archive I apparently gain the same
> quality by unpatented hinting as with the "full" hinting method with
> bytecode interpreter for ALL of my fonts.

Note that only a few operations in the bytecode interpreter are
patented.  Those features are disabled by default but the rest of the
bytecode interpreter is working.

> Does the quality that can be achieved with the unpatented algorithm
> has meanwhile been improved that much?

It depends on the font.  Does someone knows a good counterexample?
That is, which glyph in which font is rendered badly with unpatented
hinting?

> I've set the following definitions for unpatented hinting:
> 
> #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
> 
> and
> 
> #define TT_CONFIG_OPTION_UNPATENTED_HINTING
> 
> in include/freetype/config/ftoption.h
> 
> and I pass
> 
> FT_PARAM_TAG_UNPATENTED_HINTING
> 
> to
> 
> FT_Open_Face()
> 
> Is that all or will there be needed something more for activating the
> unpatented algorithm?

This should be fine.


     Werner