commit 69a1a389321447301a8eaba235190dc1229aefbd
author Pablo Ceballos <pceballos@google.com> Wed Mar 30 15:28:05 2016 -0700
committer Pablo Ceballos <pceballos@google.com> Wed Mar 30 15:28:05 2016 -0700
tree 9019086b53ab485cf38856d0f821f3df81075431
parent 2af4358f78f5376e829a07259a459da91c7b9ba4

SF: Disable FenceTracker from makefile

- Add tracing to the FenceTracker.
- Disable it by default with #ifdefs, it can be enabled in the
  makefile.

Bug 27882222

Change-Id: I640e028c4dc97b46e800a7f21cdb2cb6a4b4ff18

services/surfaceflinger/SurfaceFlinger_hwc1.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 11f19d0..a63ec50 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -927,7 +927,11 @@
 void SurfaceFlinger::handleMessageRefresh() {
     ATRACE_CALL();
 
+#ifdef ENABLE_FENCE_TRACKING
     nsecs_t refreshStartTime = systemTime(SYSTEM_TIME_MONOTONIC);
+#else
+    nsecs_t refreshStartTime = 0;
+#endif
     static nsecs_t previousExpectedPresent = 0;
     nsecs_t expectedPresent = mPrimaryDispSync.computeNextRefresh(0);
     static bool previousFrameMissed = false;
@@ -1009,7 +1013,11 @@
     }
 }
 
+#ifdef ENABLE_FENCE_TRACKING
 void SurfaceFlinger::postComposition(nsecs_t refreshStartTime)
+#else
+void SurfaceFlinger::postComposition(nsecs_t /*refreshStartTime*/)
+#endif
 {
     const LayerVector& layers(mDrawingState.layersSortedByZ);
     const size_t count = layers.size();
@@ -1035,8 +1043,10 @@
         }
     }
 
+#ifdef ENABLE_FENCE_TRACKING
     mFenceTracker.addFrame(refreshStartTime, presentFence,
             hw->getVisibleLayersSortedByZ(), hw->getClientTargetAcquireFence());
+#endif
 
     if (mAnimCompositionPending) {
         mAnimCompositionPending = false;
@@ -2586,12 +2596,14 @@
                 dumpAll = false;
             }
 
+#ifdef ENABLE_FENCE_TRACKING
             if ((index < numArgs) &&
                     (args[index] == String16("--fences"))) {
                 index++;
                 mFenceTracker.dump(&result);
                 dumpAll = false;
             }
+#endif
         }
 
         if (dumpAll) {