https://bugs.documentfoundation.org/show_bug.cgi?id=104242
--- Comment #22 from Volga <[email protected]> ---
(In reply to Michael Meeks from comment #18)
> > Checked with Andrew West, BableStone and he passed on that he is just using
> > the
> > values from Windows LOGFONT lfQuality, nothing exotic and nothing cross
> > platform.
>
> The 'nothing cross-platform' is rather a problem; we need to move to a high
> quality, accelerated rendering API on every platform that provides
> -identical- text sizing, shaping and rendering. Ideally with sub-pixel
> positioning of course - but doing accelerated cleartype rendering is quite a
> tough problem, not least because whether cleartype works or not is based on
> what is behind the text, and how close adjacent strokes are: so it can't be
> pre-rendered, and glyph stamped ourselves.
>
> ie. IMHO cleartype is a disaster waiting to happen for the goal of a
> cross-platform acceleration - at least, until we have a high quality GPU
> based glyph rendering - which (no doubt) is coming. This seems to be the
> conclusion of Microsoft too - they don't use ClearType in Office 2016. To
> some degree it is also orthogonal to the rendering technology - DirectWrite
> is excellent not because it (sometimes) puts colors around glyps ;-) but
> because you can actually ask it how wide a glyph is and it doesn't
> systematically lie through its teeth in ways that are extraordinarily hard
> to unwind.
I also remembered MS Office 2013 has different text rendering effect than
system, especially for document and playing slideshow.
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