bug#37153: 26.1; some png images scrambled

[Eli Zaretskii]

> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Fri, 23 Aug 2019 12:37:12 -0700
> Cc: 37153@debbugs.gnu.org
> 
> I didn't reproduce the problem with Emacs master on Ubuntu 18.04.3 LTS. The 
> Emacs display agrees with the Gimp's display of that tiny image. Also, the 
> rpng 
> test program of the librpng 1.6.37 (the current version) also displays the 
> image 
> the same way. I had to patch librpng with the attached to get the test 
> program 
> to compile.

Please show the screenshot of the image as you saw it.  Otherwise,
it's hard to understand what do you mean by "not reproducing" the
problem.

Thanks.