lima: disable early-z on discard (!3570) · Merge requests · Mesa / mesa · GitLab

Vasily Khoruzhick requested to merge anarsoul/mesa:lima-disable-earlyz-on-discard into master Jan 26, 2020

According to https://web.archive.org/web/20171026123213/http://limadriver.org/Render_State/ bit 9 in aux0 enables early-Z.

Blob disables early-Z when shader contains discard, see http://imkreisrum.de/deqp/deqp-complete-dumps_mali400-r6p2_on-allwinner-a20/dEQP-GLES2.functional/shaders/dEQP-GLES2.functional.shaders.discard.basic_dynamic/dEQP-GLES2.functional.shaders.discard.basic_dynamic.dump.0000

Do the same otherwise we'll get misrendering if shader contains discard.

Depends on !3564 (merged)