-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Kristian Høgsberg wrote: > On Tue, May 5, 2009 at 12:20 PM, Jesse Barnes <jbar...@virtuousgeek.org> > wrote: >> On Mon, 04 May 2009 19:14:29 -0700 >> Ian Romanick <i...@freedesktop.org> wrote: >> >>> Having this ability would allow us to advertise some fbconfigs with >>> GLX_SWAP_METHOD_OML = GLX_SWAP_COPY_OML. We obviously don't have any >>> apps that use that today, but I can think of a couple that should. :) >> Yeah, ok. > > It's not something that needs to be exposed in the protocol or dri2 > module. If you want the copy behaviour, use DRI2CopyRegion(). > Another point about GLX_SWAP_METHOD_OML is that we can't really > implement the "always swap" (GLX_SWAP_EXCHANGE_OML) behaviour without > a fair bit of yucky code, and without that we can't really claim to > support the extension.
I think you misunderstand the extension. The fbconfig has an extra value that says "this is how glXSwapBuffer happens." The three possible values are: flip, copy, unknown. Right now we support this extension, but we always say unknown. As you point out, I doubt we'd ever be able to say flip, but we might be able to say copy and unknown. Telling the application flip isn't terribly useful, but a lot of applications could do something smart (i.e., partial screen updates) if they knew the swap method was always copy. Right? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkoAhF0ACgkQX1gOwKyEAw/BpACcDY3M+PlHDrQcfFXa5buwy5yN JRgAniwXGZ4L158GVJuqCJE4956BHHV5 =m6pp -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
