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Require INVALID for implicit format modifiers #3231

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@emersion emersion commented Oct 1, 2021

See this for motivation: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/75

  • This breaks DRM cursors when modifiers aren't supported: the plane has only { LINEAR } supported and receives a buffer with INVALID.

drmModeAddFB2 doesn't support explicit modifiers. Only accept INVALID
which indicates an implicit modifier and LINEAR which may indicate
that GBM_BO_USE_LINEAR has been used.
This was used to make the intersection of INVALID and LINEAR result
in LINEAR. We can now just require LINEAR to be in both lists.
@emersion emersion marked this pull request as draft October 1, 2021 15:29
@emersion emersion added the breaking Breaking change in public API label Oct 1, 2021
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emersion commented Nov 1, 2021

wlroots has migrated to gitlab.freedesktop.org. This pull request has been moved to:

https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3231

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