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SubjectRe: [PATCH 4/5] add cursor hotspot to drm_framebuffer
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On Di, 2016-05-31 at 15:36 +0300, Ville Syrjälä wrote:

> Why store it in the fb and not eg. the plane state?

Well, drm_plane_state is allocated by drm_atomic_helper_update_plane.

When sticking the hotspot into the the plane state we have to add hot_x
and hot_y parameters to drm_plane_funcs->update_plane() and cause quite
some churn all over the drm tree.

Or create a separate code path for cursor updates which uses a special
drm_atomic_helper_update_plane version, which doesn't look very
attractive too due to code duplication.

Sticking it into the drm_framebuffer instead looks like a reasonable
alternative.

I'm open to better suggestions.

cheers,
Gerd


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