lavapipe: disable SNORM blending for now

dEQP-VK.pipeline.blend.dual_source.format.r16g16b16a16_snorm.states.color_1msc_1ms1a_add_alpha_1mdc_1msa_sub-color_dc_1ms1c_rsub_alpha_z_1mdc_sub-color_ca_1ms1c_min_alpha_sas_ca_rsub-color_1ms1c_s1c_add_alpha_z_1mda_add,Fail
dEQP-VK.pipeline.blend.dual_source.format.r8g8_snorm.states.color_z_sc_add_alpha_1ms1c_sa_min-color_dc_1mca_add_alpha_z_1mca_max-color_1ms1c_sa_max_alpha_1mcc_sc_sub-color_s1c_1mda_add_alpha_s1c_1mda_add,Fail
dEQP-VK.pipeline.blend.dual_source.format.r8g8b8a8_snorm.states.color_1msc_1ms1a_add_alpha_1mdc_1msa_sub-color_dc_1ms1c_rsub_alpha_z_1mdc_sub-color_ca_1ms1c_min_alpha_sas_ca_rsub-color_1ms1c_s1c_add_alpha_z_1mda_add,Fail
dEQP-VK.pipeline.blend.dual_source.format.r8g8b8a8_snorm.states.color_z_sc_add_alpha_1ms1c_sa_min-color_dc_1mca_add_alpha_z_1mca_max-color_1ms1c_sa_max_alpha_1mcc_sc_sub-color_s1c_1mda_add_alpha_s1c_1mda_add,Fail
dEQP-VK.pipeline.blend.format.r16g16b16a16_snorm.states.color_ca_1mca_rsub_alpha_1mda_z_sub-color_sc_sc_add_alpha_1mca_sa_max-color_sa_1msa_min_alpha_1msc_sa_sub-color_dc_sc_add_alpha_1mdc_1mca_add,Fail
dEQP-VK.pipeline.blend.format.r8g8b8a8_snorm.states.color_ca_1mca_rsub_alpha_1mda_z_sub-color_sc_sc_add_alpha_1mca_sa_max-color_sa_1msa_min_alpha_1msc_sa_sub-color_dc_sc_add_alpha_1mdc_1mca_add,Fail

All fail due to the 1 - mdc or 1 - mca alpha channel in the last quadrant.

Cc: 20.3 <mesa-stable>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7499>
(cherry picked from commit 01c4bac36e767dc96aef87fa7445a34c7c8f9132)
2 files changed