Re: Use of S3TC (patent related)
Matthieu Kraus <[email protected]> Wed, 23 Apr 2014 19:56:41 +0200
| Newsgroups | gmane.comp.graphics.crystalspace.devel |
|---|---|
| Message-ID | <[email protected]> |
--===============5249475885584062055== Content-Type: multipart/alternative; boundary="----=_NextPart_000_0075_01CF5F2E.253CF540" Content-Language: en-us ------=_NextPart_000_0075_01CF5F2E.253CF540 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Gotta agree there =E2=80=93 it=E2=80=99s only an issue if we actually = implement S3TC ourselves =E2=80=93 from a quick check this = doesn=E2=80=99t seem to be the case as we simply relay the compressed = data (produced by some 3rd party tool) to the driver for further = processing. =20 From: Mike Gist [mailto:[email protected]]=20 Sent: Wednesday, April 23, 2014 19:50 To: [email protected] Cc: [email protected] Subject: Re: [Crystal-develop] Use of S3TC (patent related) =20 It's only an issue if we implement the algorithm ourselves, which I = don't believe we do. Conversion to DXT is done by vendor tools, = decompression is done by vendor drivers. On 23 Apr 2014 18:29, "Phil Wyett" <[email protected] = <mailto:[email protected]> > wrote: On Wed, 2014-04-23 at 12:55 +0100, Mike Gist wrote: > Yes, pretty extensively I think (dxt texture compression). > Cheers Mike. Indeed it is. I think I will look at this and the whole patent thing and the fact it is forbidden from Fedora as a personal project for now. Regards Phil -- Phil Wyett { GNU Linux User and Developer Leigh GNU Linux User Group (http://leigh.lug.org.uk) IRC: philwyett Twitter: philwyett and leigh_lug } -------------------------------------------------------------------------= ----- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Crystal-develop mailing list [email protected] = <mailto:[email protected]>=20 https://lists.sourceforge.net/lists/listinfo/crystal-develop ------=_NextPart_000_0075_01CF5F2E.253CF540 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta = http-equiv=3DContent-Type content=3D"text/html; charset=3Dutf-8"><meta = name=3DGenerator content=3D"Microsoft Word 15 (filtered = medium)"><style><!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman","serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} p {mso-style-priority:99; mso-margin-top-alt:auto; margin-right:0in; mso-margin-bottom-alt:auto; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman","serif";} span.EmailStyle18 {mso-style-type:personal-reply; font-family:"Calibri","sans-serif"; color:#1F497D;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue = vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'>Gotta agree there =E2=80=93 it=E2=80=99s only an issue if we actually = implement S3TC ourselves =E2=80=93 from a quick check this = doesn=E2=80=99t seem to be the case as we simply relay the compressed = data (produced by some 3<sup>rd</sup> party tool) to the driver for = further processing.<o:p></o:p></span></p><p class=3DMsoNormal><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'><o:p> </o:p></span></p><p class=3DMsoNormal><b><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span= ></b><span = style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'> Mike Gist = [mailto:[email protected]] <br><b>Sent:</b> Wednesday, April 23, 2014 = 19:50<br><b>To:</b> [email protected]<br><b>Cc:</b> = [email protected]<br><b>Subject:</b> Re: = [Crystal-develop] Use of S3TC (patent related)<o:p></o:p></span></p><p = class=3DMsoNormal><o:p> </o:p></p><p>It's only an issue if we = implement the algorithm ourselves, which I don't believe we do. = Conversion to DXT is done by vendor tools, decompression is done by = vendor drivers.<o:p></o:p></p><div><p class=3DMsoNormal>On 23 Apr 2014 = 18:29, "Phil Wyett" <<a = href=3D"mailto:[email protected]">[email protected]</a>> = wrote:<o:p></o:p></p><blockquote style=3D'border:none;border-left:solid = #CCCCCC 1.0pt;padding:0in 0in 0in = 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=3DMsoNormal = style=3D'margin-bottom:12.0pt'>On Wed, 2014-04-23 at 12:55 +0100, Mike = Gist wrote:<br>> Yes, pretty extensively I think (dxt texture = compression).<br>><br><br>Cheers Mike. Indeed it is.<br><br>I think I = will look at this and the whole patent thing and the fact it<br>is = forbidden from Fedora as a personal project for = now.<br><br>Regards<br><br>Phil<br><br>--<br><br>Phil = Wyett<br>{<br> GNU Linux User and Developer<br> = Leigh GNU Linux User Group (<a href=3D"http://leigh.lug.org.uk" = target=3D"_blank">http://leigh.lug.org.uk</a>)<br> IRC: = philwyett<br> Twitter: philwyett and = leigh_lug<br>}<br><br>---------------------------------------------------= ---------------------------<br>Start Your Social Network Today - = Download eXo Platform<br>Build your Enterprise Intranet with eXo = Platform Software<br>Java Based Open Source Intranet - Social, = Extensible, Cloud Ready<br>Get Started Now And Turn Your Intranet Into A = Collaboration Platform<br><a href=3D"http://p.sf.net/sfu/ExoPlatform" = target=3D"_blank">http://p.sf.net/sfu/ExoPlatform</a><br>________________= _______________________________<br>Crystal-develop mailing list<br><a = href=3D"mailto:[email protected]">Crystal-develop@lis= ts.sourceforge.net</a><br><a = href=3D"https://lists.sourceforge.net/lists/listinfo/crystal-develop" = target=3D"_blank">https://lists.sourceforge.net/lists/listinfo/crystal-de= velop</a><o:p></o:p></p></blockquote></div></div></body></html> ------=_NextPart_000_0075_01CF5F2E.253CF540-- --===============5249475885584062055== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform --===============5249475885584062055== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Crystal-develop mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/crystal-develop --===============5249475885584062055==--