Skip to content

mesa/st: Don't map compressed texture fallbacks for reads

Nanley Chery requested to merge nchery/mesa:perf/reduce-txc-fallback-mapping into main

We don't need to map the compressed texture's fallback resource for operations which will only read from the texture (e.g., glGetCompressedTexImage2D and glCopyImageSubData).

For compressed textures using a fallback, delay the map until st_UnmapTextureImage and only do the map if it's being written to.

Edited by Nanley Chery

Merge request reports