commit ab04685578b254c2eaf43bf5da85e5e922787825
author Irvel <irvel@google.com> Thu Jul 28 11:23:08 2016 -0700
committer Irvel <irvel@google.com> Fri Aug 12 12:42:46 2016 -0700
tree 4e7abd51829238da79adc300d5f392d7200b1b52
parent ffc9efc4b55df38ac524f20cdd1a2fca8e259fae

Fix duplicated VSync tracing in SurfaceInterceptor

Change-Id: Id02bb2916d0c53dc11d7106c4aec6954a1acc035

services/surfaceflinger/EventThread.cpp

diff --git a/services/surfaceflinger/EventThread.cpp b/services/surfaceflinger/EventThread.cpp
index bdd94e3..d1bc7eb 100644
--- a/services/surfaceflinger/EventThread.cpp
+++ b/services/surfaceflinger/EventThread.cpp
@@ -44,13 +44,14 @@
     return;
 }
 
-EventThread::EventThread(const sp<VSyncSource>& src, SurfaceFlinger& flinger)
+EventThread::EventThread(const sp<VSyncSource>& src, SurfaceFlinger& flinger, bool interceptVSyncs)
     : mVSyncSource(src),
       mFlinger(flinger),
       mUseSoftwareVSync(false),
       mVsyncEnabled(false),
       mDebugVsyncEnabled(false),
-      mVsyncHintSent(false) {
+      mVsyncHintSent(false),
+      mInterceptVSyncs(interceptVSyncs) {
 
     for (int32_t i=0 ; i<DisplayDevice::NUM_BUILTIN_DISPLAY_TYPES ; i++) {
         mVSyncEvent[i].header.type = DisplayEventReceiver::DISPLAY_EVENT_VSYNC;
@@ -226,7 +227,9 @@
             timestamp = mVSyncEvent[i].header.timestamp;
             if (timestamp) {
                 // we have a vsync event to dispatch
-                mFlinger.mInterceptor.saveVSyncEvent(timestamp);
+                if (mInterceptVSyncs) {
+                    mFlinger.mInterceptor.saveVSyncEvent(timestamp);
+                }
                 *event = mVSyncEvent[i];
                 mVSyncEvent[i].header.timestamp = 0;
                 vsyncCount = mVSyncEvent[i].vsync.count;