tree ae6155193624cb3a44f58fa77d2d507afb43e72e
parent f829062ef40cd12c457990c1d5e60b0c4b486d48
author Daniel Stone <daniels@collabora.com> 1481218037 +0000
committer Daniel Stone <daniels@collabora.com> 1531309793 +0100

compositor-drm: Add test-only mode to state application

The atomic API can allow us to test state before we apply it, to see if
it will be valid. Use this when we construct a plane configuration, to
see if it has a chance of ever working. If not, we can fail
assign_planes early.

This will be used in later patches to incrementally build state by
proposing and testing potential configurations one at a time.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>