GNU bug report logs - #13887
24.3; doc-view will render blurry images when image-magick is available

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Message #86 received at 13887 <at> debbugs.gnu.org (full text, mbox):

From: Tassilo Horn <tsdh <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 13887 <at> debbugs.gnu.org, esabof <at> gmail.com, monnier <at> iro.umontreal.ca
Subject: Re: bug#13887: 24.3;
	doc-view will render blurry images when image-magick is available
Date: Tue, 12 Mar 2013 19:00:30 +0100

Eli Zaretskii <eliz <at> gnu.org> writes:

>> Yesterday, when things were messed up, I know that
>> `image-mode-winprops-alist' looked like that:
>> 
>> --8<---------------cut here---------------start------------->8---
>> ((#<window 0x846c030 on IncPat.pdf>
>> 	   ...)
>>  (t
>>   (page . 1)
>>   (overlay . #<overlay from 1 to 756769 in IncPat.pdf>)))
>> --8<---------------cut here---------------end--------------->8---
>> 
>> That is, the t-entry had an overlay that hasn't been deleted.  I don't
>> know how I could reach that state (I just quickly switched pages,
>> zoomed, sliced, split window), but that seems wrong and might be the
>> culprit because some other window in might already use that.
>
> So is there still some issue with handling overlays or with display in
> general?

No, I don't think so.

> You see, I chimed in because you seemed to indicate there's some
> problems with how overlays are handled in this context.  But now it
> sounds like the problem is some fragile logic in doc-view.el proper,
> right?

Yes, doc-view or (less likely) image-mode.  That's why I've Cc-ed Stefan
who invented that logic.

Bye,
Tassilo

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