d5c857837a
The commit noted below assumed and enforced that DRM_MOD_INVALID was the
only valid modifier for multi-planar imported images. Due to that, it
required that modifier on multi-planar images to:
1. Allow multiple planes.
2. Perform YUV format lowering and extent adjustments.
3. Use buffer_index to correctly map the given planes.
Fix these issues by removing or updating the code built on that
assumption.
Fixes: 2066966c10 ("gallium/dri2: Support creating multi-planar modifier images")
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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