commit d6d7df73241ba78a1e41a7ad1c358164e2358867
author Arpit Singh <arpitks@google.com> Fri Mar 07 11:14:03 2025 +0000
committer Arpit Singh <arpitks@google.com> Mon Mar 10 17:43:54 2025 +0000
tree efbe39c1ee5f6cb7d9635db080d663aab3cc7401
parent b61e79d3868206e14fcedbd37c54918370702165

[CD Cursor] Add DisplayTopologyValidator

Add a DisplayTopologyValidator to verify assumptions made in the
PointerChoreographer and InputDispatcher, some sanity checks on the
topology graph to flag issues realted to topology for debugging.

The validator will be used in the InputManager to validated and discard
invalid topology updates.

Test: atest inputflinger_tests
Bug: 401219231
Flag: com.android.input.flags.enable_display_topology_validation

Change-Id: I624bc32b73144cc047f317ef889f7f07cc1c3dfc

libs/input/Android.bp

diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index ff26184..0a180a4 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -225,6 +225,7 @@
     srcs: [
         "AccelerationCurve.cpp",
         "CoordinateFilter.cpp",
+        "DisplayTopologyGraph.cpp",
         "Input.cpp",
         "InputConsumer.cpp",
         "InputConsumerNoResampling.cpp",