2009/5/5 Ian Romanick <i...@freedesktop.org>: > -----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?
Ah, yes, that works. I was thinking that it was a drawable attribute you could specify at glx drawable creation time, but if it's a config attribute, we can just expose the ones we support. Cool. Kristian ------------------------------------------------------------------------------ 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
