tree 74ae3fc9fcaaa4fac39a0a131eb1e2a5abb98944
parent 4603f3c2151bf6535048b6a42318c8393826b68f
author Lloyd Pique <lpique@google.com> 1581477189 -0800
committer Lloyd Pique <lpique@google.com> 1581630515 -0800

[sf] Pass metadata to layer during composition

Adds the simple bits of code to grab a snapshot of the front-end Layer
generic metadata, storing a copy in LayerFECompositionState, and then
sending int to the HWC2::Layer along with other "geometry update"
settings.

As the metadata stored in the layers uses integer keys, they need to be
translated to name strings. For hard-coded mapping is defined, with a
TODO left to remove the hard-coded mapping.

A test is added to ensure that the metadata is written by OutputLayer
when present, and that it is not set as part of a "per-frame" update.

Bug: 139747351
Test: atest libcompositionengine_test

Change-Id: I63f2a34e1fb70e1aefc5aa7e97ce56b7c2579a29