From: "Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Alan Third <alan@idiocy.org>
Cc: 49688@debbugs.gnu.org
Subject: bug#49688: 28.0.50; Attempting to show images crashes Emacs
Date: Mon, 26 Jul 2021 01:45:45 +0200 [thread overview]
Message-ID: <m2czr6arfa.fsf@me.com> (raw)
In-Reply-To: <YPygsDaJEU/fSCIg@idiocy.org>
I see. In other words, HiDPI/Retina support in Emacs is a separate
issue. Well, I have been using EMMS heavily since you sent me the
patch, and I did not experience a single crash. Thus, this can go
to Emacs proper. It is so strange to use Emacs with no crashes
throughout the day! Thank you so much for helping me.
R+
Alan Third <alan@idiocy.org> writes:
> On Sun, Jul 25, 2021 at 12:44:59AM +0200, Rudolf Adamkovič
> wrote:
>> TL;DR The images show pixelated. Every modern Mac has a HiDPI
>> (a.k.a. Retina) screen, where each point (logical pixel) maps
>> to 4 physical pixels, a.k.a. 2× scale. I in the attached small
>> screenshot, please compare the sharpness of the image with the
>> text next to it. Emacs renders the image at 1× and the text at
>> 2×.
>
> Without knowing more about the image and how it's being
> displayed I can't say whether there's anything wrong with that.
>
> Images are, by default, displayed at 1x resolution so they will
> appear the same size on retina and non-retina screens.
>
> If you want to display images with pixels at a 1:1 ratio you
> need to scale the image by (/ 1 (frame-scale-factor)), but that
> will only work on Emacs 28.
>
> This is how Emacs has always worked on retina screens, this
> patch shouldn't change that. If it does then there's something
> else wrong, but I don't see any change in image display here.
>
> -- Alan Third
--
Logic is a science of the necessary laws of thought, without which
no employment of the understanding and the reason takes place. --
Immanuel Kant, 1785 Rudolf Adamkovič <salutis@me.com>
Studenohorská 25 84103 Bratislava Slovakia [he/him]
next prev parent reply other threads:[~2021-07-25 23:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-21 22:34 bug#49688: 28.0.50; Attempting to show images crashes Emacs Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-22 7:52 ` Alan Third
2021-07-22 10:33 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-22 19:50 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-22 21:01 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-22 22:11 ` Alan Third
2021-07-23 22:52 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-23 23:27 ` Alan Third
2021-07-24 16:09 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-24 16:52 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-24 17:05 ` Alan Third
2021-07-24 22:44 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-07-24 23:22 ` Alan Third
2021-07-25 23:45 ` Rudolf Adamkovič via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2021-07-26 20:05 ` Alan Third
2021-10-20 15:22 ` Stefan Kangas
2021-10-20 20:13 ` Alan Third
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