SurfaceFlinger: keep layer history for inactive layers am: 983e568b3c am: 9dda4149c2
Change-Id: I1d881134814162d4a02389dc4016611a83519801
diff --git a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
index 67edef4..6570b1a 100644
--- a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
@@ -192,7 +192,7 @@
trace(weak, LayerHistory::LayerVoteType::NoVote, 0);
}
- info->clearHistory();
+ info->onLayerInactive(now);
std::swap(mLayerInfos[i], mLayerInfos[--mActiveLayersEnd]);
}
@@ -213,7 +213,7 @@
std::lock_guard lock(mLock);
for (const auto& [layer, info] : activeLayers()) {
- info->clearHistory();
+ info->clearHistory(systemTime());
}
}
} // namespace android::scheduler::impl
diff --git a/services/surfaceflinger/Scheduler/LayerInfoV2.cpp b/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
index 276afd8..25dca39 100644
--- a/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
@@ -57,21 +57,14 @@
}
bool LayerInfoV2::isFrequent(nsecs_t now) const {
- // Find the first valid frame time
- auto it = mFrameTimes.begin();
- for (; it != mFrameTimes.end(); ++it) {
- if (isFrameTimeValid(*it)) {
- break;
- }
- }
-
// If we know nothing about this layer we consider it as frequent as it might be the start
// of an animation.
- if (std::distance(it, mFrameTimes.end()) < FREQUENT_LAYER_WINDOW_SIZE) {
+ if (mFrameTimes.size() < FREQUENT_LAYER_WINDOW_SIZE) {
return true;
}
// Find the first active frame
+ auto it = mFrameTimes.begin();
for (; it != mFrameTimes.end(); ++it) {
if (it->queueTime >= getActiveLayerThreshold(now)) {
break;
diff --git a/services/surfaceflinger/Scheduler/LayerInfoV2.h b/services/surfaceflinger/Scheduler/LayerInfoV2.h
index f2d29c5..5f50d5a 100644
--- a/services/surfaceflinger/Scheduler/LayerInfoV2.h
+++ b/services/surfaceflinger/Scheduler/LayerInfoV2.h
@@ -83,15 +83,21 @@
// updated time, the updated time is the present time.
nsecs_t getLastUpdatedTime() const { return mLastUpdatedTime; }
- void clearHistory() {
+ void onLayerInactive(nsecs_t now) {
// Mark mFrameTimeValidSince to now to ignore all previous frame times.
// We are not deleting the old frame to keep track of whether we should treat the first
// buffer as Max as we don't know anything about this layer or Min as this layer is
// posting infrequent updates.
- mFrameTimeValidSince = std::chrono::steady_clock::now();
+ const auto timePoint = std::chrono::nanoseconds(now);
+ mFrameTimeValidSince = std::chrono::time_point<std::chrono::steady_clock>(timePoint);
mLastReportedRefreshRate = 0.0f;
}
+ void clearHistory(nsecs_t now) {
+ onLayerInactive(now);
+ mFrameTimes.clear();
+ }
+
private:
// Used to store the layer timestamps
struct FrameTimeData {
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
index 431cf0f..dc705ed 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
@@ -37,6 +37,7 @@
static constexpr auto PRESENT_TIME_HISTORY_SIZE = LayerInfoV2::HISTORY_SIZE;
static constexpr auto MAX_FREQUENT_LAYER_PERIOD_NS = LayerInfoV2::MAX_FREQUENT_LAYER_PERIOD_NS;
static constexpr auto FREQUENT_LAYER_WINDOW_SIZE = LayerInfoV2::FREQUENT_LAYER_WINDOW_SIZE;
+ static constexpr auto PRESENT_TIME_HISTORY_TIME = LayerInfoV2::HISTORY_TIME;
static constexpr float LO_FPS = 30.f;
static constexpr auto LO_FPS_PERIOD = static_cast<nsecs_t>(1e9f / LO_FPS);
@@ -71,6 +72,9 @@
}
auto createLayer() { return sp<mock::MockLayer>(new mock::MockLayer(mFlinger.flinger())); }
+ auto createLayer(std::string name) {
+ return sp<mock::MockLayer>(new mock::MockLayer(mFlinger.flinger(), std::move(name)));
+ }
Hwc2::mock::Display mDisplay;
RefreshRateConfigs mConfigs{{HWC2::Display::Config::Builder(mDisplay, 0)
@@ -541,5 +545,75 @@
EXPECT_EQ(2, frequentLayerCount(time));
}
+class LayerHistoryTestV2Parameterized
+ : public LayerHistoryTestV2,
+ public testing::WithParamInterface<std::chrono::nanoseconds> {};
+
+TEST_P(LayerHistoryTestV2Parameterized, HeuristicLayerWithInfrequentLayer) {
+ std::chrono::nanoseconds infrequentUpdateDelta = GetParam();
+ auto heuristicLayer = createLayer("HeuristicLayer");
+
+ EXPECT_CALL(*heuristicLayer, isVisible()).WillRepeatedly(Return(true));
+ EXPECT_CALL(*heuristicLayer, getFrameRateForLayerTree())
+ .WillRepeatedly(Return(Layer::FrameRate()));
+
+ auto infrequentLayer = createLayer("InfrequentLayer");
+ EXPECT_CALL(*infrequentLayer, isVisible()).WillRepeatedly(Return(true));
+ EXPECT_CALL(*infrequentLayer, getFrameRateForLayerTree())
+ .WillRepeatedly(Return(Layer::FrameRate()));
+
+ const nsecs_t startTime = systemTime();
+
+ const std::chrono::nanoseconds heuristicUpdateDelta = 41'666'667ns;
+ history().record(heuristicLayer.get(), startTime, startTime);
+ history().record(infrequentLayer.get(), startTime, startTime);
+
+ nsecs_t time = startTime;
+ nsecs_t lastInfrequentUpdate = startTime;
+ const int totalInfrequentLayerUpdates = FREQUENT_LAYER_WINDOW_SIZE * 5;
+ int infrequentLayerUpdates = 0;
+ while (infrequentLayerUpdates <= totalInfrequentLayerUpdates) {
+ time += heuristicUpdateDelta.count();
+ history().record(heuristicLayer.get(), time, time);
+
+ if (time - lastInfrequentUpdate >= infrequentUpdateDelta.count()) {
+ ALOGI("submitting infrequent frame [%d/%d]", infrequentLayerUpdates,
+ totalInfrequentLayerUpdates);
+ lastInfrequentUpdate = time;
+ history().record(infrequentLayer.get(), time, time);
+ infrequentLayerUpdates++;
+ }
+
+ if (time - startTime > PRESENT_TIME_HISTORY_TIME.count()) {
+ ASSERT_NE(0, history().summarize(time).size());
+ ASSERT_GE(2, history().summarize(time).size());
+
+ bool max = false;
+ bool min = false;
+ float heuristic = 0;
+ for (const auto& layer : history().summarize(time)) {
+ if (layer.vote == LayerHistory::LayerVoteType::Heuristic) {
+ heuristic = layer.desiredRefreshRate;
+ } else if (layer.vote == LayerHistory::LayerVoteType::Max) {
+ max = true;
+ } else if (layer.vote == LayerHistory::LayerVoteType::Min) {
+ min = true;
+ }
+ }
+
+ if (infrequentLayerUpdates > FREQUENT_LAYER_WINDOW_SIZE) {
+ EXPECT_FLOAT_EQ(24.0f, heuristic);
+ EXPECT_FALSE(max);
+ if (history().summarize(time).size() == 2) {
+ EXPECT_TRUE(min);
+ }
+ }
+ }
+ }
+}
+
+INSTANTIATE_TEST_CASE_P(LeapYearTests, LayerHistoryTestV2Parameterized,
+ ::testing::Values(1s, 2s, 3s, 4s, 5s));
+
} // namespace
} // namespace android::scheduler
diff --git a/services/surfaceflinger/tests/unittests/mock/MockLayer.h b/services/surfaceflinger/tests/unittests/mock/MockLayer.h
index 119f580..078d8e07 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockLayer.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockLayer.h
@@ -24,8 +24,9 @@
class MockLayer : public Layer {
public:
- explicit MockLayer(SurfaceFlinger* flinger)
- : Layer(LayerCreationArgs(flinger, nullptr, "TestLayer", 800, 600, 0, {})) {}
+ MockLayer(SurfaceFlinger* flinger, std::string name)
+ : Layer(LayerCreationArgs(flinger, nullptr, std::move(name), 800, 600, 0, {})) {}
+ explicit MockLayer(SurfaceFlinger* flinger) : MockLayer(flinger, "TestLayer") {}
MOCK_CONST_METHOD0(getType, const char*());
MOCK_METHOD0(getFrameSelectionPriority, int32_t());