commit 40845df1285b387bcbf8f43ac72228eee2606d80
author Pablo Ceballos <pceballos@google.com> Mon Jan 25 17:41:15 2016 -0800
committer Pablo Ceballos <pceballos@google.com> Mon Mar 21 16:06:17 2016 -0700
tree 013720a404ed609b96d59a3e02f53dc36c122e1b
parent b49576d5241859a3cf03c9f34b8030ad25d3806b

SF: Add FenceTracker

FenceTracker tracks all fences in SurfaceFlinger. These timestamps
could be used for debugging, profiling, or be exposed to the
application.

Change-Id: I4297a661c0a7530e744168ac7a2a66c4bca92fd5

services/surfaceflinger/Layer.cpp

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 42d0810..cde92e9 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -82,6 +82,9 @@
         mFiltering(false),
         mNeedsFiltering(false),
         mMesh(Mesh::TRIANGLE_FAN, 4, 2, 2),
+#ifndef USE_HWC2
+        mIsGlesComposition(false),
+#endif
         mProtectedByApp(false),
         mHasSurface(false),
         mClientRef(client),
@@ -750,6 +753,7 @@
     Region visible = tr.transform(visibleRegion.intersect(hw->getViewport()));
     layer.setVisibleRegionScreen(visible);
     layer.setSurfaceDamage(surfaceDamageRegion);
+    mIsGlesComposition = (layer.getCompositionType() == HWC_FRAMEBUFFER);
 
     if (mSidebandStream.get()) {
         layer.setSidebandStream(mSidebandStream);
@@ -2046,6 +2050,23 @@
     mFrameTracker.getStats(outStats);
 }
 
+void Layer::getFenceData(String8* outName, uint64_t* outFrameNumber,
+        bool* outIsGlesComposition, nsecs_t* outPostedTime,
+        sp<Fence>* outAcquireFence, sp<Fence>* outPrevReleaseFence) const {
+    *outName = mName;
+    *outFrameNumber = mSurfaceFlingerConsumer->getFrameNumber();
+
+#ifdef USE_HWC2
+    *outIsGlesComposition = mHwcLayers.count(HWC_DISPLAY_PRIMARY) ?
+            mHwcLayers.at(HWC_DISPLAY_PRIMARY).compositionType ==
+            HWC2::Composition::Client : true;
+#else
+    *outIsGlesComposition = mIsGlesComposition;
+#endif
+    *outPostedTime = mSurfaceFlingerConsumer->getTimestamp();
+    *outAcquireFence = mSurfaceFlingerConsumer->getCurrentFence();
+    *outPrevReleaseFence = mSurfaceFlingerConsumer->getPrevReleaseFence();
+}
 // ---------------------------------------------------------------------------
 
 Layer::LayerCleaner::LayerCleaner(const sp<SurfaceFlinger>& flinger,