st/mesa: always use PIPE_USAGE_STAGING for GL_MAP_READ_BIT usage (!11974) · Merge requests · Mesa / mesa · GitLab

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Marek Olšák requested to merge mareko/mesa:fix-immutable-bo-read-perf into main Jul 20, 2021

This fixes CPU read performance.

Closes: #5091 (closed) Cc: mesa-stable@lists.freedesktop.org