commit fe94a225a556265e93b1ebfe520d3637fe7cc67d
author chaviw <chaviw@google.com> Wed Aug 21 13:52:59 2019 -0700
committer chaviw <chaviw@google.com> Tue Oct 01 17:56:39 2019 -0700
tree 0c72ea02c9b193f1144fdf9f16b117eb2573dc91
parent 3809d1d616f95442aad5a45628d72a0726b534ec

[Mirror Layers] Added mirrorSurface API to enable mirroring (3/4)

Added a new SurfaceComposer API called mirrorSurface that allows a
client to request a mirror of a particular heirarchy starting from the
passed in layer. The API will return a SurfaceControl that's the parent
of the mirrored layer that can be updated by the client.

Test: MirrorLayerTest
Bug: 131622422
Change-Id: Ia6047f0334eabfc59d6222b2edfd4e9576ba31e5

services/surfaceflinger/SurfaceFlinger.h

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 2ea8f78..a9a4276 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -623,6 +623,9 @@
                                   uint32_t h, uint32_t flags, LayerMetadata metadata,
                                   sp<IBinder>* outHandle, sp<Layer>* outLayer);
 
+    status_t mirrorLayer(const sp<Client>& client, const sp<IBinder>& mirrorFromHandle,
+                         sp<IBinder>* outHandle);
+
     String8 getUniqueLayerName(const String8& name);
 
     // called when all clients have released all their references to