commit 0bb6a47f5264571690d57c609f0e945086dba9b1
author Ady Abraham <adyabr@google.com> Mon Oct 12 10:22:13 2020 -0700
committer Ady Abraham <adyabr@google.com> Tue Nov 03 10:19:21 2020 -0800
tree f9ab6720e867e1f133360a4515036e15e4f1694f
parent 9febda8e05bbd924d14682454fdc7a846c38f954

SurfaceFlinger: throttle applications based on uid

Add the ability for SurfaceFlinger to be able to throttle down to
a divider of the refresh rate (i.e. for 30/45 for 90Hz)

Change-Id: I6bfd6f43ee1f30e771a136c558d8ae9a6d7fbe0f
Test: Manually via 1039 SF backdoor
Bug: 170502573
Bug: 169270763
Bug: 169271059

services/surfaceflinger/Scheduler/VSyncTracker.h

diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 107c540..2cd9b3d 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -68,6 +68,14 @@
 
     virtual bool needsMoreSamples() const = 0;
 
+    /*
+     * Checks if a vsync timestamp is in phase for a given divider.
+     *
+     * \param [in] timePoint  A vsync timestamp
+     * \param [in] divider  The divider to check for
+     */
+    virtual bool isVSyncInPhase(nsecs_t timePoint, int divider) const = 0;
+
     virtual void dump(std::string& result) const = 0;
 
 protected: