On Mon, Jul 22, 2013 at 12:22 PM, <sroland at vmware.com> wrote: > From: Roland Scheidegger <sroland at vmware.com> > > The codeword must be unsigned (otherwise will shift in 1's from above when > merging low/high parts so some texels decode wrong). > This also affects gallium's util/u_format_rgtc. > --- Write a piglit test for this too?