blorp, iris: Clarify HiZ support for mipmaps and sampling (!8853) · Merge requests · Mesa / mesa · GitLab

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Nanley Chery requested to merge nchery/mesa:refactor/clarify-non-8x4-hiz into master Feb 03, 2021

This MR aims to make HiZ less special-cased and easier to understand. Some changes include:

Assert that HiZ ops follow PRM restrictions on LOD1+
Be upfront about whether or not HiZ is supported for a given LOD
Clarify code and comments about HiZ sampling

Closes: #3788 (closed)