Re: [ft-devel] Taming CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y* for a gamma of ~2.2/sRGB?

[Nikolaus Waxweiler]

(Repost because I forgot to click "post to list", sorry Werner..)

> Indeed.  So why doesn't get this applied?  Is there a negative impact
> somewhere?  Perhaps you should add the patch to the bug report; maybe
> this helps move the dinosaurs...

The author noted that "CAIRO_DEBUG=xrender-version=-1" triggers software 
rendering, so I personally only rigged firefox.desktop and 
thunderbird.desktop to load it and leave the rest of the desktop 
hardware-accelerated ;) This patch will probably need to touch other 
parts of the stack, but I will bug some cairo (and skia/QT?) people to 
see if there's something that can be done to bring Linux font rendering 
into the 21st century ;)

Side note 1: Firefox on Windows (with DirectWrite enabled for all fonts) 
does gamma correction for fonts, as does Edge. So it would be bringing 
the Linux version up to parity.

Side note 2: For years I didn't like the autohinter, I always thought 
it's output looked... pixely, blotchy, color-fringy... the opposite of 
nice, depending on the size. Wasted a lot of time fiddling with 
Infinality's patches, stem darkening, etc. It's a bit embarrassing that 
the problem has been gamma correction the entire time and that the 
autohinter is doing perfectly fine, even if the output is a bit thin. 
Which brings us to stem darkening again ;)