tree b8cd95eca6793389c0197fe925833b3e731b69bd
parent 790e1ba908a81e0ad43a5322c1e62779cda10181
author yuhui.zhang <yuhui.zhang@mediatek.com> 1617950751 +0800
committer Ady Abraham <adyabr@google.com> 1619210909 +0000

Fix the secure flag check for blackout layer issue

When there is a layer not to be composed on insecure virtual display,
surfaceflinger will send a black color layer to render engine to
compose instead of the original buffer.

If render engine supports protected context, but layer does not set
the eLayerSecure flag,the layer will not be set to black color layer
and will be sent to render engine to compose on the insecure display
based on current logic, even if the layer buffer usage is protected.

Solution: add buffer usage check for insecure display case.
Test result: The secure layer buffer will not be sent to render engine
for the insecure virtual display to compose, and a black color layer
will be sent instead.

Bug: 185195873
Change-Id: Iad53411ea642fee3e5b09222760a223b4ada61ad
Merged-In: Iad53411ea642fee3e5b09222760a223b4ada61ad