commit 45cdacc21d205952e21596717dbe1de3bfb2be92
author Roman Stratiienko <r.stratiienko@gmail.com> Wed Feb 12 04:26:10 2025 +0200
committer Roman Stratiienko <r.stratiienko@gmail.com> Tue Feb 18 23:52:55 2025 +0200
tree ec686e4488cd8c6e301923774a4231b9defc28fa
parent 6a765203ab72fb40685288827f35e8ff67aa9c54

drm_hwcomposer: Allow skipping round-trip to SF before presenting

PresentOrValidateDisplay feature allows to present composition without
a round trip to Surface Flinger in case the client layer does not have
to be updated. This saves some CPU time.

Change-Id: I7969f90a45525b2d9dfdc12a0006cd9b36ac98ba
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>

hwc2_device/HwcDisplay.h

diff --git a/hwc2_device/HwcDisplay.h b/hwc2_device/HwcDisplay.h
index 7c24dea..069a6ee 100644
--- a/hwc2_device/HwcDisplay.h
+++ b/hwc2_device/HwcDisplay.h
@@ -247,6 +247,8 @@
 
   auto getDisplayPhysicalOrientation() -> std::optional<PanelOrientation>;
 
+  bool NeedsClientLayerUpdate() const;
+
  private:
   AtomicCommitArgs CreateModesetCommit(
       const HwcDisplayConfig *config,