-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/09/2011 04:10 AM, Rudolf Polzer wrote: > As for compression: the compressed format is basically "each 4x4 block is a > 2-color optimum palette image". Similar schemes have existed way before S3TC > (e.g. in some video codecs used by DOS games - see ffmpeg for implementations > of these), and even way before Apple's RPZA, which I still see as obvious > prior > art that should render any S3TC related patents invalid (which is apparently > exactly what Apple now is trying to achieve in court). Whether my specific > algorithms for choosing the 2 colors, or for finding the nearest color of the > two for each pixel, violate any patents, I cannot say, but these two things > are > quite interchangable. Too bad the standard color reduction algorithm "Median > cut" does not work well if the target is just two colors, as it would have > been > a VERY safe choice.
Yes. Getting some legal confirmation that the patents are invalid and that we can just do the right thing is the way forward here. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAk5BtB4ACgkQX1gOwKyEAw+L8wCcClNbtU28UDQEGnzDdxqCvRIR diMAnjSwEmMNQhk2tU5+CgWoAdXJPtQv =NRKD -----END PGP SIGNATURE----- _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
