From: Fabrice Popineau <fabrice.popineau@gmail.com>
To: Andreas Politz <politza@hochschule-trier.de>
Cc: Emacs developers <emacs-devel@gnu.org>
Subject: Re: Image formats support
Date: Sat, 18 Mar 2017 16:00:02 +0100 [thread overview]
Message-ID: <CAFgFV9N6bW5quEm50=hWTvBKE2DKfJPvxTKB-SpYZMwNs_jj+w@mail.gmail.com> (raw)
In-Reply-To: <87shma1wze.fsf@luca>
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2017-03-18 15:27 GMT+01:00 Andreas Politz <politza@hochschule-trier.de>:
> Fabrice Popineau <fabrice.popineau@gmail.com> writes:
>
> > Maybe a stupid question but if emacs is compiled with ImageMagick
> support,
> > what is the point in asking JPEG, PNG, etc support at the same time from
> independent libraries ?
> > Shouldn't configure made those options to be exclusive ?
>
> Imagemagick is handled like an image type, so png and imagemagick are
> two different types. One uses libpng as backend and the other
> libmagick.
My point is that only one of imagemagick and libpng will handle png files
at a time.
When ImageMagick is available, it supersedes png, jpeg and anything it
handles (AFAICS).
If you want to let libpng handle png files, you need to change some
defaults
(imagemagick-filter-types, etc.)
> > Also what is (are) the drawback(s) of ImageMagick support vs the other
> libraries ?
>
> In my experience, libpng is faster then imagemagick.
Ok, that is understandable.
Fabrice
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next prev parent reply other threads:[~2017-03-18 15:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-18 13:38 Image formats support Fabrice Popineau
2017-03-18 14:27 ` Andreas Politz
2017-03-18 15:00 ` Fabrice Popineau [this message]
2017-03-18 15:44 ` Andreas Politz
2017-03-18 15:49 ` Fabrice Popineau
2017-03-18 16:24 ` Andreas Politz
2017-03-18 14:34 ` joakim
2017-03-18 14:49 ` Clément Pit-Claudel
2017-03-18 21:57 ` Andreas Politz
2017-03-18 23:08 ` Fabrice Popineau
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