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Re: [ft-devel] Downscaling of rendered bitmaps?


From: Nikolaus Waxweiler
Subject: Re: [ft-devel] Downscaling of rendered bitmaps?
Date: Sun, 13 Mar 2016 18:20:29 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

Mhmm, it's not *that* simple, I think, since you should somehow assure
that, say, the ascender height gets aligned to an integer value if
possible.

The first idea that comes to mind is to inflate 3x and when scaling back down, taking the first row and discarding the next two.

Although I just remembered that I should re-read the sections in the Raster Tragedy on that. To do it the safe Microsoft way, I would probably have to teach the rasterizer oversampling and only trigger it when doing TrueType.



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