http://bugs.freedesktop.org/show_bug.cgi?id=17099
--- Comment #17 from Stephane Marchesin <[EMAIL PROTECTED]> 2008-10-16 07:34:48 PST --- (In reply to comment #16) > (In reply to comment #15) > > Created an attachment (id=19691) --> (http://bugs.freedesktop.org/attachment.cgi?id=19691) [details] [details] > > Patch > > > > Try this patch. > > This is already fixed in master. Though I realize now there's actually a bug > in > the fix there, "screen->chip_family & RADEON_CLASS_R100" will always be false > - > that should have been "(screen->chip_flags & RADEON_CLASS_MASK) == > RADEON_CLASS_R100" (I'll fix this). Anyway, it has the same effect on r300 > chips as your patch. > Hmm right I used a stale mesa tree. Anyway, surfaces are not magic as you seem to imply. If you put one in front of a piece of memory, it applies the tiling function, whether the buffer is tiled or linear (in which case you scramble the contents). Here is what I think is the problem : - the (low end) card doesn't tile the zbuffer - we still setup the tile registers over the zbuffer - reads are scrambled by the use of a surface. If the surface wasn't there, zbuffer reads would work -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
