[PATCH 0/5] Switching from HW cursor to SW cursor

Keith Packard keithp at keithp.com
Tue Dec 22 08:16:41 PST 2015


Michel Dänzer <michel at daenzer.net> writes:

> This series addresses two cases in which a HW cursor cannot be used:
>
> 1) When a transform is active on a CRTC. Patch 2 adds a CRTC hook
>    use_hw_cursor_argb, which allows drivers to force SW cursor on a
>    per-CRTC basis. However, this hook alone could only force SW cursor
>    as of the next time a new cursor image is set. The
>    xf86CursorResetCursor function added in patch 1 allows switching
>    between HW cursor and SW cursor immediately.

Yes, the current driver interface can only make a per-screen decision,
not a per-crtc one. I guess it's useful to still have the HW cursor on
the CRTC which can support it?

-- 
-keith
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