llvmpipe: Set PIPE_CAP_VIEWPORT_SUBPIXEL_BITS.
Wine needs this for d3d11, which has subpixel viewports. I am aware of the discussion at !5379 (merged), but it referenced an unmerged feature branch at the time. Is it correct now to set this to non-zero?
If it still needs to be zero maybe my patch will provoke a better fix or a change that explicitly sets this to 0 together with a comment why.
Signed-off-by: Stefan Dösinger stefan@codeweavers.com