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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.devel
Subject: Re: Native image rotation
Date: Sun, 24 Feb 2019 13:51:17 -0500
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>> The idea was to generate them with Emacs once, and cache the rotated version.
> AFAIK, that's not what the feature does.  It rotates the specified
> image on the fly.  At least that's how image scaling works.

If Emacs's image cache does the caching post-rotation, that should
work OK.


        Stefan