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Re: [ft-devel] Turning off stem darkening by default until all drivers s

From: Werner LEMBERG
Subject: Re: [ft-devel] Turning off stem darkening by default until all drivers support it?
Date: Tue, 10 Nov 2015 18:12:21 +0100 (CET)

> I noticed that Liberation Sans/Serif/Mono and Open Sans looked
> pretty ClearType-y with hintfull but I wasn't sure about the advance
> widths.  Is there any way to detect this from within FT_Load_Glyph
> or something so that native ClearType fonts with linear advance
> widths can be send to the native hinter?

Recent browser *always* use linear advance widths, regardless whether
a glyph's bytecode is changing this – even in Native ClearType hinting

> 2. I think it might be best to disable stem darkening for now when
> including Jan's patch (my suggestion) for the sake of consistent
> rendering.

OK.  To summarize: `slight mode' would mean stem darkening for CFFs
but no stem darkening for auto-hinted fonts, right?

> My planned blog post would still stand, I'd just call them
> experimental features and work on refactoring stem darkening support
> in the future.

Please massage your blog entry so that it can be added to the
documentation of `no-stem-darkening' in `ftautoh.h'.


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