GNU bug report logs - #68006
30.0.50; Image-mode speed

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Message #104 received at 68006 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Manuel Giraud <manuel <at> ledu-giraud.fr>
Cc: stefankangas <at> gmail.com, 68006 <at> debbugs.gnu.org
Subject: Re: bug#68006: 30.0.50; Image-mode speed
Date: Fri, 05 Jan 2024 15:40:20 +0200

> From: Manuel Giraud <manuel <at> ledu-giraud.fr>
> Cc: stefankangas <at> gmail.com,  68006 <at> debbugs.gnu.org
> Date: Fri, 05 Jan 2024 14:26:20 +0100
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> >> > But we might need to store additional information there, like the
> >> > buffer of the image, for example.
> >> 
> >> I don't understand.  Where do you think that the buffer of the image
> >> should be stored?
> >
> > In the cache, together with the image, I think.
> 
> You mean in struct image_cache?

Yes.

> > How else would the Lisp programs know which images "belong" to them,
> > and when to uncache them?
> 
> I don't know exactly.  My idea was that an image-mode buffer has (buffer
> local I guess) variable that will hold its image cache.

That is also possible, but then will the cache itself be implemented
only in Lisp?  I assumed at least some of it will be in C.

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