[MPlayer-dev-eng] Font hinting in libass

[Evgeniy Stepanov]

On Thursday 19 April 2007 01:09, Uoti Urpala wrote:
> Some embedded fonts look quite ugly in current MPlayer, but are OK if I
> disable native hinting. Adding any one of FT_LOAD_NO_HINTING,
> FT_LOAD_FORCE_AUTOHINT or FT_LOAD_TARGET_LIGHT to the flags in the
> FT_Load_Glyph call in ass_font.c produces a much better result. I don't
> know whether there is a problem in the way FreeType uses the hints or if
> the fonts simply contain broken information which is better not used. I
> checked one hardsubbed file which was probably created on Windows and it
> looks quite similar to the version with hinting completely disabled.
>
> I think there should be a way to disable native hinting, but I'm not
> sure whether it should be an option (including all the flags above?) or
> if some other mode would be suitable as a default.

Having such an option seems like a good idea. I'm not sure about all of the 
flags, the first one seems to contradict the rest. Could you send me one of 
those fonts ?

I've also stumbled upon a font with seemingly wrong kerning information. It's 
the one in attachment, the kerning between "N" and "o" in it is a rather 
large number. Maybe I am missing something ? ftstring displays it correctly 
only when kerning is turned off.

If that is really the case, we might want yet another option to disable 
kerning.
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