On 6/16/20 11:28 PM, Kevin Kofler wrote: > Zdenek Dohnal wrote: >> Do you mean GPL as a license? > Yes. By "the GPL driver", I mean the driver itself, which is under the GPL > and/or compatible licenses, as opposed to the proprietary plugin. Oh, sorry - when I read driver, I usually come up with associations like PostScript driver, PDF driver, zjstream driver - based on what stuff goes out of filtering chain. Professional deformation I guess :) > >> Either way, HP upstream makes new releases, but with not so much/any new >> features or bugfixes. Mostly adding some new PPDs. > This is quite unfortunate, because several printers are stuck requiring the > plugin because of formerly patented algorithms whose patents have since > expired, at least JBIG 1. You're right. Unfortunately, upstream's responses are scarce... you can try to approach them at https://bugs.launchpad.net/opensuse/+source/hplip/+bug/1831091 . > >> Only jbig2 thing I recall is jbig2dec package which is in Fedora. > Sorry, my mistake, it is actually JBIG 1 that is used, not JBIG 2. JBIG 1 is > implemented by jbigkit, which you now maintain in Fedora. It has been in > Fedora for 2 years now because the patent has expired. JBIG 1 is the core of > several of the protocols implemented by the proprietary HPLIP plugin, as > evidenced by the alternative drivers (foo2zjs etc.) for those printers > depending on jbigkit. But unfortunately, the plugin does not just implement > JBIG 1 directly, but large parts of the affected protocols are hidden inside > the plugin, so it is not straightforward to produce a drop-in replacement > for it. Thanks for the explanation! I didn't know that, because I had my hands full with other printing packages, so I haven't had time to look into jbigkit circumstances yet. Thanks! > > Kevin Kofler > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx -- Zdenek Dohnal Software Engineer Red Hat Czech - Brno TPB-C
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