Bug 105853 - [Gen9] ASTC texture downloads and CopyImage can fail
Summary: [Gen9] ASTC texture downloads and CopyImage can fail
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Intel 3D Bugs Mailing List
QA Contact: Intel 3D Bugs Mailing List
Depends on:
Reported: 2018-04-02 21:09 UTC by Nanley Chery
Modified: 2019-09-25 19:10 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Nanley Chery 2018-04-02 21:09:46 UTC
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.
Comment 1 GitLab Migration User 2019-09-25 19:10:28 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1712.

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