-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Joan Bertran wrote:
> Taking into account that intel graphics cards > are shared memory, so they don't have the bandwith > of other gpu's the glSwapBuffers can take a > precious time to finish if pageFlip is not > available. keithw did some experiments in this area some years ago. It turns that that, due to the way the Intel chipsets do cachine, it's *faster* to do copies than flips. I seem to recall the break-even point being for full screen apps larger than 1280x800 or something similar. Even at that point the difference was very small. There are other things that could be done to the Intel driver (e.g., modify it to do region-based rendering) that would improve performance by a larger margin in more situations than adding page flipping support. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFExM/sX1gOwKyEAw8RApfcAJ9XEVVk2mf/w0iAoL8D/ImvA28frgCfVr1W HXKD6a4ec0/q8qXK2qfq8Og= =m92m -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mesa3d-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
