Comment 4 for bug 1053065

The quality loss[1] due to the patented bit combinations is negligible
in my opinion. Thats the main reason why I have not tried to add
libtxc-dxtn-s3tc to debian yet. If Bastion and other HIB games actually
depend on s2tc they might have used the s2tc texture compressor which
would actually result in no quality loss at all.
I have the package for s3tc floating around but due to the risky nature
I haven't uploaded it yet. Though I have to say that there is currently
more than one package in debian main which uses s3tc decompression
algorithms ([2] and [3]). So it is not that unlikely that the package
would be accepted.

[1] https://github.com/divVerent/s2tc/wiki/QualityComparison
[2] http://lists.debian.org/debian-legal/2010/12/msg00062.html
[3] http://lists.debian.org/debian-legal/2012/03/msg00095.html

Am 19.09.2012 22:24, schrieb Bryce Harrington:
> Oibaf, thanks for the link. Strange, I had searched *hard* for an
> existing bug report but found nothing in launchpad.
>
> We had considered using libtxn-dxtc0 which would be a more generic
> solution but the games in question appear to be asking for s2tc
> specifically:
>
> <Sarvatt> should be libtxc-dxtn0, so people can actually use the patent encumbered one if they want? :P libtxc-dxtn-s2tc0 provides libtxc-dxtn0
> <bryceh> not a bad idea
> <Sarvatt> except the humble games require libtxc-dxtn-s2tc0 so cant install it at the same time as those anyway :(
> <bryceh> hrm
> <RAOF> The humble bundle explicitly depend on libtxc-dxtn-s2tc0?
> <Sarvatt> bastion does at least
> <RAOF> Sarvatt: Is there any particular reason why someone would want the patent-encumbered one?
> <Sarvatt> haven't heard of any complaints about s2tc, but the description of how it gets around the patent makes it sound like the patented one might be preferred
> <Sarvatt> http://en.wikipedia.org/wiki/S2TC
> <Sarvatt> better to stick with what we have i guess after thinking about it, not like libtxc-dxtn0 will be going into debian/ubuntu and the provides might end up getting dropped one day
> <bryceh> ok
>
> I will dupe 823062 here if you don't mind.
>