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Re: Lazy image converters

From: Stefan Monnier
Subject: Re: Lazy image converters
Date: Sun, 16 Feb 2020 10:20:20 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

> What if we have a lazy image, so its FILE-OR-DATA is calculated at
> redisplay time.  'image-convert' could utilize this.  One of the approaches
> to lazy images is to allow FILE-OR-DATA to be a function returning actual
> file or data.  Redisplay could call this func and substitute the value of
> FILE-OR-DATA in image spec with the results, kind of caching the results.

It's definitely worth a try.
Maybe we can do that using the existing jit-lock hook?


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