Commit graph

6 commits

Author SHA1 Message Date
Simon Ser
e2df5e73d0
List planes by allocation order
Given a primary plane with zpos=0 and overlay planes with zpos 1 2, we want
first to allocate the primary plane, then the furthest overlay plane, then the
remaining one: 0 2 1.

References: https://github.com/emersion/libhwc/issues/3
2019-09-09 20:55:43 +03:00
Simon Ser
42db49c6fe
Guess zpos from plane type
Many drivers don't expose the zpos plane property. We can guess it from the
plane type though: primary, overlay, cursor. Except some drivers expose
underlays too: underlays, primary, overlay, cursor. Underlay planes don't have a
special type, they are just marked as overlays. To detect them, check whether
their plane ID is less than the primary plane ID.

References: https://github.com/emersion/libhwc/issues/3
2019-09-08 18:33:09 +03:00
Simon Ser
d90d7bdc36
Check plane is compatible with CRTC
This allows us to rule out some potential solutions.

Closes: https://github.com/emersion/libhwc/issues/2
2019-09-08 17:41:25 +03:00
Simon Ser
165d013b80
Change planes to be a linked list instead of an array
We'll need this anyway when we allow users to choose which planes to give us.
Let's not start building algorithms on top of arrays.
2019-09-08 15:26:50 +03:00
Simon Ser
6d5221370e
Disable unused planes 2019-08-23 18:48:13 +03:00
Simon Ser
9fe471dd6b
Initial experiments 2019-08-21 23:07:37 +03:00