commit d6927fb1143398370c0885844bfb58923ef740b7
author Brian Anderson <brianderson@google.com> Sat Jul 23 23:37:30 2016 -0700
committer Brian Anderson <brianderson@google.com> Tue Nov 15 12:59:26 2016 -0800
tree 209199f1c052507a71d3894cf5339191da7bd20d
parent eae5819174ef95363b50affbc96c3117ccc458a6

Track frame events incrementally and per layer.

* Replaces FenceTracker, which was owned by SurfaceFlinger,
    with FrameEventHistory, which is owned by Layer.
* Updates FrameEventHistory as events occur.
* Changes SurfaceFlinger flag "--fences" to
    "--frame-events".

Test: adb shell /data/nativetest/libgui_test/libgui_test
--gtest_filter=*GetFrameTimestamps*

Change-Id: I868c2ef93964656d7e41848243433499e7f45fe7

services/surfaceflinger/SurfaceFlinger.h

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index bdb2614..5b216dd 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -53,7 +53,6 @@
 #include "Barrier.h"
 #include "DisplayDevice.h"
 #include "DispSync.h"
-#include "FenceTracker.h"
 #include "FrameTracker.h"
 #include "MessageQueue.h"
 #include "SurfaceInterceptor.h"
@@ -401,8 +400,8 @@
             const LayerVector& currentLayers, uint32_t layerStack,
             Region& dirtyRegion, Region& opaqueRegion);
 
-    void preComposition();
-    void postComposition(nsecs_t refreshStartTime);
+    void preComposition(nsecs_t refreshStartTime);
+    void postComposition();
     void rebuildLayerStacks();
     void setUpHWComposer();
     void doComposition();
@@ -446,14 +445,13 @@
     void logFrameStats();
 
     void dumpStaticScreenStats(String8& result) const;
+    // Not const because each Layer needs to query Fences and cache timestamps.
+    void dumpFrameEventsLocked(String8& result);
 
     void recordBufferingStats(const char* layerName,
             std::vector<OccupancyTracker::Segment>&& history);
     void dumpBufferingStats(String8& result) const;
 
-    bool getFrameTimestamps(const Layer& layer, uint64_t frameNumber,
-            FrameTimestamps* outTimestamps);
-
     /* ------------------------------------------------------------------------
      * Attributes
      */
@@ -519,7 +517,6 @@
     nsecs_t mLastTransactionTime;
     bool mBootFinished;
     bool mForceFullDamage;
-    FenceTracker mFenceTracker;
 #ifdef USE_HWC2
     bool mPropagateBackpressure = true;
 #endif