On 05/12/2011 09:05 PM, Eric Anholt wrote:
As of gen6, alt-mode (which we use) MOVs of floats are not raw -- they'll modify infs/nans.
This is good to know - I wasn't aware of that. I'd been assuming that any type was as good as any other. Apparently not...thanks.
This broke discard and alpha test in 16-wide, where apparently the upper 8 bits of the pixel enables being set were causing the whole value to get trashed upon being moved. Treating the values as UD instead of float makes sure they get preserved. While I'm here, replace the two 8-wide moves of the halves of the header with a single compressed move. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=36648
Using UD for loading headers seems quite sensible. And using a compressed MOV makes a lot more sense.
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
