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Re: [ft-devel] FreeType sub-banding
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From: |
Werner LEMBERG |
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Subject: |
Re: [ft-devel] FreeType sub-banding |
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Date: |
Fri, 08 Jul 2016 06:49:23 +0200 (CEST) |
> You might have noticed my commit
> http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=4a2f8f1faffd7aad7a8cb3be196abc49e4b227da
Yeah, thanks for working on it!
> FreeType smooth rasterizer is incredibly smart in setting the
> default band size at 1/8th of the available pixel (cell) pool. This
> minimizes having memory overflown, band bisected and work repeated.
> That magic constant is only suitable for rather simple European
> scripts. Chinese ideogram would be more comfortable with smaller
> default band size like 1/13th the available pixel pool. I did the
> statistics.
Interesting. Are we really talking about noticeable differences in
rendering speed?
> Any suggestions? Should rasterizer be aware of the Unicode range?
I would rather not follow that path since this opens a can of worms.
Maybe using a compromise of using 1/10th?
Werner