(they only get away with it because the only ones who can bring suite for not following a EU Directive is the European Commission, who has tried to introduce software patents twice, which has been voted down by the European Parliament)
The EPC allows for patents on inventions that includes programming, such as say an industrial robot, but not on the software part itself. So in any jurisdiction with laws that follows the EPC (which, to my knowledge, is all of EU and EEA except for Germany), Mesa 3D, or a software distribution including Mesa 3D, can't infringe on any patents on it's own (though a computer with Mesa 3D pre-installed, or a boxed GPU with Mesa 3D on a driver disc, possibly could, if the patent covers more than just the software, such as for example specialized circuitry on the GPU).
Last edited by Jonno; 07-19-2011 at 04:12 PM.
V!NCENT, Jonno: I don't think that you can take Q's statement to be so literal. I think he's more talking about economics than about actual patent law -- if its no good in Germany, its no good in the rest of Europe even if it is kinda legal. Its similar in North America. If its no good in the US, its also no good in Canada, even if it is kinda legal.
S2TC might be a solution for games that ask the driver to compress their S3TC textures for them, but virtually no one does that anymore.
The vast majority of games compress their S3TC textures in advance and send them to the OpenGL implementation compressed. S2TC doesn't help there.
This is of particular interest to myself, but I need to decompress the textures too. Can't rely on the driver for it - well, one can, but it's hideously slow compared to using libtxc_dxtn and some multithreading.
Assuming that this patent lasts the full 20 years without being invalidated, it'll be around 2019 when it expires. I doubt it'll be of much relevance then.
No that is not how patents work, you can only loose patents by having them invalidated by a court, and that cannot happen due to you letting others use the patent without litigating.If you IMPLEMENT it after asking and being turned down, they MUST litigate to protect the validity of the patent.
What you are thinking about it copyright law, if you don't protect your copyright you loose it.
Yes but it was filed in 1997 which is the date from which the 20 years should be added so it will expire in 2017.I just did some searching and found the patent was published September 21, 1999
Last edited by F.Ultra; 07-19-2011 at 08:15 PM.