On Fri, 2010-02-12 at 05:09 -0800, michal wrote: > Keith Whitwell wrote on 2010-02-12 13:39: > > On Fri, 2010-02-12 at 04:32 -0800, Micha?? Kr??l wrote: > > > >> Module: Mesa > >> Branch: master > >> Commit: aa0b671422880b99dc178d43d1e4e1a3f766bf7f > >> URL: > >> http://cgit.freedesktop.org/mesa/mesa/commit/?id=aa0b671422880b99dc178d43d1e4e1a3f766bf7f > >> > >> Author: Michal Krol <mic...@vmware.com> > >> Date: Fri Feb 12 13:32:35 2010 +0100 > >> > >> util: Fix descriptors for R32_FLOAT and R32G32_FLOAT formats. > >> > > > > Michal, > > > > Is this more like two different users expecting two different results in > > those unused columns? > > > > In particular, we definitely require the missing elements to be extended > > to (0,0,0,1) when fetching vertex data, and probably also in OpenGL > > texture sampling (if we supported these formats for that). > > > > > Gallium should follow D3D rules, so I've been following D3D here. Also, > util_unpack_color_ub() in u_pack_color.h already sets the remaining > fields to 0xff.
Hmm, I'm not sure that's an absolute rule to be applied in every circumstance. The reason we tend to do that is because that's often what hardware implements. > > Brian added a table of differences between GL and other APIs recently to > > gallium/docs - does your change agree with that? > > > > > Where's that exactly, I can't find it? At the bottom of tgsi.rst. Keith ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
