http://bugs.freedesktop.org/show_bug.cgi?id=9379
--- Comment #16 from Andrew Péteri <whysogr...@gmail.com> 2009-07-10 15:03:43 PST --- Created an attachment (id=27576) --> (http://bugs.freedesktop.org/attachment.cgi?id=27576) patch to add support for projective textures Enables hardware-accelerated rendering of primitives that have vertices with 'q' texture coordinates used in projective texture mapping. It must be applied after attachment 24949. The patch is generally based on the "ptex hack" found in the S3 Savage sources (which uses the standard vertex format, then shuffles values around to their correct position just before sending the vertices to the DMA buffer), modified to support two sets of texture coordinates; the vertex layout used by the r128, along with the additional vertex format flag needed, were obtained from earlier Mesa/DRI sources (eg. [1][2]). The performed calculations are essentially the same in both cases (savage & r128). Both patches apply against the mesa_7.4-0ubuntu3.1 source package and git commit eb33c0ab8b3594f0b1d58534a13a26e3fb050cff, however only the former has been tested. (ps. I'm unsure which vertex size the SAREA structure should store, but I also couldn't find any piece of code where that member gets referenced, so it may not matter either way.) [1] http://www.koders.com/c/fid0D7829772F2499BEA37AC17768976CD64AD3459C.aspx?s=rhw2#L62 [2] http://www.koders.com/c/fidDF4ACA3257B4F85D79E4E734EA089EC50D1DBB7F.aspx#L79 -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
