commit 983f2b5896104582456ae83c2fbc5913d7eba4b6
author Dominik Laskowski <domlaskowski@google.com> Thu Jun 25 16:54:06 2020 -0700
committer Dominik Laskowski <domlaskowski@google.com> Mon Jul 13 18:07:25 2020 -0700
tree db9983cd067e18fdc7f1bd24f7edda0b07a3a2a0
parent 69bf8bb84b0953ecb75f10235563d5d2a56335b5

SF: Short-circuit scheduler content detection

Avoid registering, recording, partitioning, and transforming layers
for content detection in the scheduler if there is a single refresh
rate config.

Dump content detection version, and layer history stats.

Bug: 158780872
Test: No layer history on crosshatch, ARC, etc.
Test: dumpsys SurfaceFlinger --vsync
Test: libsurfaceflinger_unittest
Change-Id: Ia23a35cd6aa0cb117b19c98f5d0af8c14836430e

services/surfaceflinger/Scheduler/LayerHistoryV2.cpp

diff --git a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
index ee612b0..e42c5cf 100644
--- a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
@@ -20,6 +20,7 @@
 
 #include "LayerHistory.h"
 
+#include <android-base/stringprintf.h>
 #include <cutils/properties.h>
 #include <utils/Log.h>
 #include <utils/Timers.h>
@@ -31,9 +32,8 @@
 #include <utility>
 
 #include "../Layer.h"
-#include "SchedulerUtils.h"
-
 #include "LayerInfoV2.h"
+#include "SchedulerUtils.h"
 
 namespace android::scheduler::impl {
 
@@ -213,4 +213,10 @@
     }
 }
 
+std::string LayerHistoryV2::dump() const {
+    std::lock_guard lock(mLock);
+    return base::StringPrintf("LayerHistoryV2{size=%zu, active=%zu}", mLayerInfos.size(),
+                              mActiveLayersEnd);
+}
+
 } // namespace android::scheduler::impl