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Re: [AUCTeX] Embedded previews in high-DPI?

From: mituharu
Subject: Re: [AUCTeX] Embedded previews in high-DPI?
Date: Wed, 18 May 2016 21:03:07 +0900
User-agent: SquirrelMail/1.4.22-4.el6

> YAMAMOTO Mitsuharu <address@hidden> writes:
>>>> So they are always magnified and look blurry.  This cannot be
>>>> solved at the Lisp level.
>>> That does not make a lot of sense: preview-latex queries the
>>> resolution of the device and generates images matching the device
>>> resolution.  If Retina displays are lying about their resolution,
>>> that is the problem to tackle.
>> That's exactly what the OP tried and resulted in failure, i.e., large
>> blurry images.  Just giving a large resolution value to Ghostscript at
>> the Lisp level might work on other platforms, but that is not enough
>> to display images in a non-blurry way on OS X Retina display.
> Getting the OS X Retina display to display one pixel per image pixel is
> not a new feature: fixing this (probably requires fixing in the Emacs
> source rather than in AUCTeX) to get the platform to behave like others
> is pretty uncontroversial.  I see no non-technical roadblocks there.

What happens when a user moves an Emacs frame from a Retina
display to a non-Retina display?  The window system on OS X keeps
the logical (point) size rather than the physical (pixel,
actually backing store) size.

                                YAMAMOTO Mitsuharu

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