gallium: add PIPE_CAP_MAX_VARYINGS

Some NVIDIA hardware can accept 128 fragment shader input components,
but only have up to 124 varying-interpolated input components. We add a
new cap to express this cleanly. For most drivers, this will have the
same value as PIPE_SHADER_CAP_MAX_INPUTS for the fragment shader.

Fixes KHR-GL45.limits.max_fragment_input_components

Signed-off-by: Karol Herbst <[email protected]>
[imirkin: rebased, improved docs/commit message]
Signed-off-by: Ilia Mirkin <[email protected]>
Acked-by: Rob Clark <[email protected]>
Acked-by: Eric Anholt <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Cc: 19.0 <[email protected]>

0 files changed, 0 insertions, 0 deletions