draw/aaline: stronger guard against no free samplers (v2)

Line anti-aliasing will fail when there is no free sampler available. Make
the corresponding guard more robust in preparation of raising
PIPE_MAX_SAMPLERS to 32.

The literal 1 is a (signed) int, and shifting into the sign bit is undefined
in C, so change occurences of 1 to 1u.

v2: add an assert for bitfield size and use 1u << idx

Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]> (v1)
Reviewed-by: Bas Nieuwenhuizen <[email protected]> (v1)
Reviewed-by: Marek Olšák <[email protected]> (v1)

0 files changed, 0 insertions, 0 deletions