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Bug#1000710: ghostscript: Fails to convert EPS file using -sDEVICE=pngalpha



Hi Hilmar,

Quoting Hilmar Preusse (2021-11-27 16:25:19)
> Since gs 9.54 the conversion of some eps files does not work for at 
> least one output devices. This came to my attention b/c the test suite 
> of asymptote fails to run for at least one file.
> 
> The sample test file is attached. Here are two command lines, the 
> first fails, the second not. Hence I'd assume it to be valid EPS code.
> 
> gs -dBATCH -dNOPAUSE -sDEVICE=pngalpha -sOutputFile=a.png hatch_.eps
> gs -dBATCH -dNOPAUSE -sDEVICE=png16 -sOutputFile=a.png hatch_.eps
> 
> Not sure, why pngalpha is affected; I tested a view variants of png, 
> they seem to work fine.

Thanks for reporting this issue!

Packaging changes is unlikely to affect this, so it is therefore better 
to report it upstream.  I can do that, but better if you do this as you 
are in a better position to answer eventual followup questions related 
to asymptote as producer for that sample EPS file.

Upstream bugtracker is here: https://bugs.ghostscript.com/


Kind regards,

 - Jonas

-- 
 * Jonas Smedegaard - idealist & Internet-arkitekt
 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

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