[Therion] Progressive coded JPG files??

[Wookey]

On 2025-08-19 08:25 -0500, Bill Gee wrote:
> It appears that xTherion will no longer load ANY jpg file.

>The system is Fedora 42.  Therion is 6.3.4+dev, compiled back in 
>April. I have several jpeg libraries installed:
>
>root at main2:~# rpm -qa | grep jpeg
>libjpeg-turbo-3.1.0-2.fc42.x86_64
>openjpeg-2.5.3-6.fc42.x86_64
>turbojpeg-3.1.0-2.fc42.x86_64
>openjpeg-tools-2.5.3-6.fc42.x86_64
>libjpeg-turbo-utils-3.1.0-2.fc42.x86_64
>libjpeg-turbo-devel-3.1.0-2.fc42.x86_64
>openjpeg-devel-2.5.3-6.fc42.x86_64
>jpeginfo-1.7.1-6.fc42.x86_64
>jpegoptim-1.5.5-6.fc42.x86_64
>mjpegtools-libs-2.2.1-8.fc42.x86_64

OK. Just checked on Debian 13 (stable released last week) and therion will load jpegs OK there.

In case it helps:
therion                                             6.3.4-2                              amd64        Cave surveying - 2D and 3D drawing software
libjpeg-turbo-progs                                 1:2.1.5-4                            amd64        Programs for manipulating JPEG files
libjpeg62-turbo:amd64                               1:2.1.5-4                            amd64        libjpeg-turbo JPEG runtime library
libturbojpeg0:amd64                                 1:2.1.5-4                            amd64        TurboJPEG runtime library - SIMD optimized

So your libjpeg-turbo is 3.x whilst I have 2.x. Maybe that's significant? 
I think libjpeg-turbo and openjpeg are alternatives. Check which therion is using on your system. Mine is linked against libjpeg.so.62 which comes from libjpeg62-turbo

Wookey
-- 
Principal hats:  Debian, Wookware
http://wookware.org/
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