commit 45e4e3634e94171bca7e3df287bcbcb74df6ca4a
author Ady Abraham <adyabr@google.com> Fri Jun 07 18:20:51 2019 -0700
committer Ady Abraham <adyabr@google.com> Mon Jun 10 23:16:43 2019 +0000
tree a404d4b90e463cf2b50d040dd44095f8c540aa0c
parent bd670b8d26fa2cc8505e1d6073a17210e719b82d

SurfaceFlinger: Some fixes to DispSync

Pass negative offsets to DispSync to fix the scheduling
when SurfaceFlinger uses negative offsets.

Change-Id: I1f9544b064305c87f973120cc1bc59a0268b78e5
Bug: 132284303
Test: UI-Bench

services/surfaceflinger/Scheduler/DispSyncSource.h

diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.h b/services/surfaceflinger/Scheduler/DispSyncSource.h
index 4759699..b6785c5 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.h
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.h
@@ -25,7 +25,8 @@
 
 class DispSyncSource final : public VSyncSource, private DispSync::Callback {
 public:
-    DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, bool traceVsync, const char* name);
+    DispSyncSource(DispSync* dispSync, nsecs_t phaseOffset, nsecs_t offsetThresholdForNextVsync,
+                   bool traceVsync, const char* name);
 
     ~DispSyncSource() override = default;
 
@@ -53,6 +54,7 @@
 
     std::mutex mVsyncMutex;
     nsecs_t mPhaseOffset GUARDED_BY(mVsyncMutex);
+    const nsecs_t mOffsetThresholdForNextVsync;
     bool mEnabled GUARDED_BY(mVsyncMutex) = false;
 };