mesa: default FixedSampleLocations to true when using a dummy image

GL_ARB_texture_multisample and GLES 3.1 expect the initial value to be
GL_TRUE. This fixes

dEQP-GLES31.functional.state_query.texture_level.texture_2d_multisample_array.fixed_sample_locations_integer

and a few related tests.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
1 file changed