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[Gen9] ASTC texture downloads and CopyImage can fail

Submitted by Nanley Chery @nchery

Assigned to Intel 3D Bugs Mailing List

Link to original bug (#105853)

Description

When uploading ASTC textures on gen9, we perform a workaround that involves modifying the compressed blocks.

If these blocks are subsequently read via a texture download or CopyImage operation, the result would not match what the user uploaded.

Another reason that CopyImage can fail is that the needed workaround is not applied for CopyImage calls that have ASTC textures as the target. When the ASTC texture is later read, we may encounter a rendering issue.

Version: git

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