tree a7323283f7ab5b32f4f02854178a3e5975811c43
parent 5239f1e0c9f24ca06a9c58ce6eea95c7e4da93bd
author Ilia Mirkin <imirkin@alum.mit.edu> 1463113604 -0400
committer Ilia Mirkin <imirkin@alum.mit.edu> 1463181446 -0400

glsl: be more strict when validating shader inputs

interpolateAt* can only take input variables or an element of an input
variable array. No structs.

Further, GLSL 4.40 relaxes the requirement to allow swizzles, so enable
that as well.

This fixes the following dEQP tests:

dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_sample.negative.interpolate_struct_member
dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_centroid.negative.interpolate_struct_member
dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_offset.negative.interpolate_struct_member

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>