SurfaceFlinger: expected present time directly from VSyncReactor
When SurfaceFlinger calculates what is the vsync time, it does
that by asking VSyncReactor what is next anticipated vsync from the
wake up time. To handle negative offsets (when SF wakes up more than
a vsync period before a vsync event) SF adds a vsync period
to that anticipated vsync.
This creates a race condition where the offset used at the
time of invalidate may be different than the offset used by
VSyncReactor calculated at the time of the requestNextVsync().
To fix that, we plumb the first calculated vsync time to
SurfaceFlinger.
Bug: 154303002
Test: Run app transitions and collect systrace
Change-Id: I3f2670c7b0ecb52a85fb07df6d360694b51d5d66
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index 68cd84f..9d293b7 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp
@@ -130,7 +130,7 @@
mVsyncListening = false;
}
- void onDispSyncEvent(nsecs_t /* when */) final {
+ void onDispSyncEvent(nsecs_t /*when*/, nsecs_t /*expectedVSyncTimestamp*/) final {
std::unique_lock<decltype(mMutex)> lock(mMutex);
if (mPhaseIntervalSetting == Phase::ZERO) {
diff --git a/services/surfaceflinger/Scheduler/DispSync.cpp b/services/surfaceflinger/Scheduler/DispSync.cpp
index fc6ccae..ff91bf7 100644
--- a/services/surfaceflinger/Scheduler/DispSync.cpp
+++ b/services/surfaceflinger/Scheduler/DispSync.cpp
@@ -200,7 +200,8 @@
}
}
- callbackInvocations = gatherCallbackInvocationsLocked(now);
+ callbackInvocations =
+ gatherCallbackInvocationsLocked(now, computeNextRefreshLocked(0, now));
}
if (callbackInvocations.size() > 0) {
@@ -303,6 +304,11 @@
return BAD_VALUE;
}
+ nsecs_t computeNextRefresh(int periodOffset, nsecs_t now) const {
+ Mutex::Autolock lock(mMutex);
+ return computeNextRefreshLocked(periodOffset, now);
+ }
+
private:
struct EventListener {
const char* mName;
@@ -315,6 +321,7 @@
struct CallbackInvocation {
DispSync::Callback* mCallback;
nsecs_t mEventTime;
+ nsecs_t mExpectedVSyncTime;
};
nsecs_t computeNextEventTimeLocked(nsecs_t now) {
@@ -340,7 +347,8 @@
return duration < (3 * mPeriod) / 5;
}
- std::vector<CallbackInvocation> gatherCallbackInvocationsLocked(nsecs_t now) {
+ std::vector<CallbackInvocation> gatherCallbackInvocationsLocked(nsecs_t now,
+ nsecs_t expectedVSyncTime) {
if (mTraceDetailedInfo) ATRACE_CALL();
ALOGV("[%s] gatherCallbackInvocationsLocked @ %" PRId64, mName, ns2us(now));
@@ -361,6 +369,10 @@
CallbackInvocation ci;
ci.mCallback = eventListener.mCallback;
ci.mEventTime = t;
+ ci.mExpectedVSyncTime = expectedVSyncTime;
+ if (eventListener.mPhase < 0) {
+ ci.mExpectedVSyncTime += mPeriod;
+ }
ALOGV("[%s] [%s] Preparing to fire, latency: %" PRId64, mName, eventListener.mName,
t - eventListener.mLastEventTime);
callbackInvocations.push_back(ci);
@@ -426,10 +438,19 @@
void fireCallbackInvocations(const std::vector<CallbackInvocation>& callbacks) {
if (mTraceDetailedInfo) ATRACE_CALL();
for (size_t i = 0; i < callbacks.size(); i++) {
- callbacks[i].mCallback->onDispSyncEvent(callbacks[i].mEventTime);
+ callbacks[i].mCallback->onDispSyncEvent(callbacks[i].mEventTime,
+ callbacks[i].mExpectedVSyncTime);
}
}
+ nsecs_t computeNextRefreshLocked(int periodOffset, nsecs_t now) const {
+ nsecs_t phase = mReferenceTime + mPhase;
+ if (mPeriod == 0) {
+ return 0;
+ }
+ return (((now - phase) / mPeriod) + periodOffset + 1) * mPeriod + phase;
+ }
+
const char* const mName;
bool mStop;
@@ -444,7 +465,7 @@
std::vector<EventListener> mEventListeners;
- Mutex mMutex;
+ mutable Mutex mMutex;
Condition mCond;
// Flag to turn on logging in systrace.
@@ -458,7 +479,7 @@
public:
ZeroPhaseTracer() : mParity("ZERO_PHASE_VSYNC", false) {}
- virtual void onDispSyncEvent(nsecs_t /*when*/) {
+ virtual void onDispSyncEvent(nsecs_t /*when*/, nsecs_t /*expectedVSyncTimestamp*/) {
mParity = !mParity;
}
@@ -845,7 +866,7 @@
const uint32_t hwcLatency = 0;
// Ask DispSync when the next refresh will be (CLOCK_MONOTONIC).
- return computeNextRefresh(hwcLatency, now);
+ return mThread->computeNextRefresh(hwcLatency, now);
}
} // namespace impl
diff --git a/services/surfaceflinger/Scheduler/DispSync.h b/services/surfaceflinger/Scheduler/DispSync.h
index 2faa81c..832f08e 100644
--- a/services/surfaceflinger/Scheduler/DispSync.h
+++ b/services/surfaceflinger/Scheduler/DispSync.h
@@ -36,7 +36,7 @@
public:
Callback() = default;
virtual ~Callback();
- virtual void onDispSyncEvent(nsecs_t when) = 0;
+ virtual void onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) = 0;
protected:
Callback(Callback const&) = delete;
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.cpp b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
index 4e3f85f..8752b66 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.cpp
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
@@ -92,7 +92,7 @@
}
}
-void DispSyncSource::onDispSyncEvent(nsecs_t when) {
+void DispSyncSource::onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) {
VSyncSource::Callback* callback;
{
std::lock_guard lock(mCallbackMutex);
@@ -104,7 +104,7 @@
}
if (callback != nullptr) {
- callback->onVSyncEvent(when);
+ callback->onVSyncEvent(when, expectedVSyncTimestamp);
}
}
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.h b/services/surfaceflinger/Scheduler/DispSyncSource.h
index f278712..2aee3f6 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.h
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.h
@@ -40,7 +40,7 @@
private:
// The following method is the implementation of the DispSync::Callback.
- virtual void onDispSyncEvent(nsecs_t when);
+ void onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
const char* const mName;
TracedOrdinal<int> mValue;
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index 8347650..5dedb6a 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -79,8 +79,9 @@
event.hotplug.connected ? "connected" : "disconnected");
case DisplayEventReceiver::DISPLAY_EVENT_VSYNC:
return StringPrintf("VSync{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
- ", count=%u}",
- event.header.displayId, event.vsync.count);
+ ", count=%u, expectedVSyncTimestamp=%" PRId64 "}",
+ event.header.displayId, event.vsync.count,
+ event.vsync.expectedVSyncTimestamp);
case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
return StringPrintf("ConfigChanged{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
", configId=%u}",
@@ -99,10 +100,11 @@
}
DisplayEventReceiver::Event makeVSync(PhysicalDisplayId displayId, nsecs_t timestamp,
- uint32_t count) {
+ uint32_t count, nsecs_t expectedVSyncTimestamp) {
DisplayEventReceiver::Event event;
event.header = {DisplayEventReceiver::DISPLAY_EVENT_VSYNC, displayId, timestamp};
event.vsync.count = count;
+ event.vsync.expectedVSyncTimestamp = expectedVSyncTimestamp;
return event;
}
@@ -312,11 +314,12 @@
mCondition.notify_all();
}
-void EventThread::onVSyncEvent(nsecs_t timestamp) {
+void EventThread::onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp) {
std::lock_guard<std::mutex> lock(mMutex);
LOG_FATAL_IF(!mVSyncState);
- mPendingEvents.push_back(makeVSync(mVSyncState->displayId, timestamp, ++mVSyncState->count));
+ mPendingEvents.push_back(makeVSync(mVSyncState->displayId, timestamp, ++mVSyncState->count,
+ expectedVSyncTimestamp));
mCondition.notify_all();
}
@@ -423,7 +426,8 @@
} else {
// Generate a fake VSYNC after a long timeout in case the driver stalls. When the
// display is off, keep feeding clients at 60 Hz.
- const auto timeout = mState == State::SyntheticVSync ? 16ms : 1000ms;
+ const std::chrono::nanoseconds timeout =
+ mState == State::SyntheticVSync ? 16ms : 1000ms;
if (mCondition.wait_for(lock, timeout) == std::cv_status::timeout) {
if (mState == State::VSync) {
ALOGW("Faking VSYNC due to driver stall for thread %s", mThreadName);
@@ -439,9 +443,10 @@
}
LOG_FATAL_IF(!mVSyncState);
- mPendingEvents.push_back(makeVSync(mVSyncState->displayId,
- systemTime(SYSTEM_TIME_MONOTONIC),
- ++mVSyncState->count));
+ const auto now = systemTime(SYSTEM_TIME_MONOTONIC);
+ const auto expectedVSyncTime = now + timeout.count();
+ mPendingEvents.push_back(makeVSync(mVSyncState->displayId, now,
+ ++mVSyncState->count, expectedVSyncTime));
}
}
}
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index 98b1876..9e7086e 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -57,7 +57,7 @@
class Callback {
public:
virtual ~Callback() {}
- virtual void onVSyncEvent(nsecs_t when) = 0;
+ virtual void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) = 0;
};
virtual ~VSyncSource() {}
@@ -189,7 +189,7 @@
REQUIRES(mMutex);
// Implements VSyncSource::Callback
- void onVSyncEvent(nsecs_t timestamp) override;
+ void onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp) override;
const std::unique_ptr<VSyncSource> mVSyncSource GUARDED_BY(mMutex);
diff --git a/services/surfaceflinger/Scheduler/InjectVSyncSource.h b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
index 31da588..975c9db 100644
--- a/services/surfaceflinger/Scheduler/InjectVSyncSource.h
+++ b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
@@ -35,10 +35,10 @@
mCallback = callback;
}
- void onInjectSyncEvent(nsecs_t when) {
+ void onInjectSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) {
std::lock_guard<std::mutex> lock(mCallbackMutex);
if (mCallback) {
- mCallback->onVSyncEvent(when);
+ mCallback->onVSyncEvent(when, expectedVSyncTimestamp);
}
}
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index d8a666a..9d6e1d8 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -62,9 +62,9 @@
}
}
-void MessageQueue::Handler::dispatchInvalidate(nsecs_t timestamp) {
+void MessageQueue::Handler::dispatchInvalidate(nsecs_t expectedVSyncTimestamp) {
if ((android_atomic_or(eventMaskInvalidate, &mEventMask) & eventMaskInvalidate) == 0) {
- mLastVsyncTime = timestamp;
+ mExpectedVSyncTime = expectedVSyncTimestamp;
mQueue.mLooper->sendMessage(this, Message(MessageQueue::INVALIDATE));
}
}
@@ -73,11 +73,11 @@
switch (message.what) {
case INVALIDATE:
android_atomic_and(~eventMaskInvalidate, &mEventMask);
- mQueue.mFlinger->onMessageReceived(message.what, mLastVsyncTime);
+ mQueue.mFlinger->onMessageReceived(message.what, mExpectedVSyncTime);
break;
case REFRESH:
android_atomic_and(~eventMaskRefresh, &mEventMask);
- mQueue.mFlinger->onMessageReceived(message.what, mLastVsyncTime);
+ mQueue.mFlinger->onMessageReceived(message.what, mExpectedVSyncTime);
break;
}
}
@@ -152,7 +152,7 @@
while ((n = DisplayEventReceiver::getEvents(&mEventTube, buffer, 8)) > 0) {
for (int i = 0; i < n; i++) {
if (buffer[i].header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
- mHandler->dispatchInvalidate(buffer[i].header.timestamp);
+ mHandler->dispatchInvalidate(buffer[i].vsync.expectedVSyncTimestamp);
break;
}
}
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index dbd5e96..ebc4315 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -101,13 +101,13 @@
enum { eventMaskInvalidate = 0x1, eventMaskRefresh = 0x2, eventMaskTransaction = 0x4 };
MessageQueue& mQueue;
int32_t mEventMask;
- std::atomic<nsecs_t> mLastVsyncTime;
+ std::atomic<nsecs_t> mExpectedVSyncTime;
public:
explicit Handler(MessageQueue& queue) : mQueue(queue), mEventMask(0) {}
virtual void handleMessage(const Message& message);
void dispatchRefresh();
- void dispatchInvalidate(nsecs_t timestamp);
+ void dispatchInvalidate(nsecs_t expectedVSyncTimestamp);
};
friend class Handler;
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 3a84b67..86bb6eb 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -276,12 +276,12 @@
return mInjectorConnectionHandle;
}
-bool Scheduler::injectVSync(nsecs_t when) {
+bool Scheduler::injectVSync(nsecs_t when, nsecs_t expectedVSyncTime) {
if (!mInjectVSyncs || !mVSyncInjector) {
return false;
}
- mVSyncInjector->onInjectSyncEvent(when);
+ mVSyncInjector->onInjectSyncEvent(when, expectedVSyncTime);
return true;
}
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 75c02f3..4a0280f 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -95,7 +95,7 @@
ConnectionHandle enableVSyncInjection(bool enable);
// Returns false if injection is disabled.
- bool injectVSync(nsecs_t when);
+ bool injectVSync(nsecs_t when, nsecs_t expectedVSyncTime);
void enableHardwareVsync();
void disableHardwareVsync(bool makeUnavailable);
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.cpp b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
index 2f1faac..5f0c9ce 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
@@ -128,7 +128,7 @@
mLastCallTime = vsynctime;
}
- mCallback->onDispSyncEvent(wakeupTime);
+ mCallback->onDispSyncEvent(wakeupTime, vsynctime);
{
std::lock_guard<std::mutex> lk(mMutex);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 4a71295..a6e1e69 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1415,7 +1415,7 @@
status_t SurfaceFlinger::injectVSync(nsecs_t when) {
Mutex::Autolock lock(mStateLock);
- return mScheduler->injectVSync(when) ? NO_ERROR : BAD_VALUE;
+ return mScheduler->injectVSync(when, calculateExpectedPresentTime(when)) ? NO_ERROR : BAD_VALUE;
}
status_t SurfaceFlinger::getLayerDebugInfo(std::vector<LayerDebugInfo>* outLayers) const
@@ -1824,16 +1824,16 @@
return fence->getSignalTime();
}
-void SurfaceFlinger::populateExpectedPresentTime(nsecs_t wakeupTime) {
+nsecs_t SurfaceFlinger::calculateExpectedPresentTime(nsecs_t now) const {
DisplayStatInfo stats;
mScheduler->getDisplayStatInfo(&stats);
- const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime(wakeupTime);
+ const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime(now);
// Inflate the expected present time if we're targetting the next vsync.
- mExpectedPresentTime.store(
- mVSyncModulator->getOffsets().sf > 0 ? presentTime : presentTime + stats.vsyncPeriod);
+ return mVSyncModulator->getOffsets().sf > 0 ? presentTime : presentTime + stats.vsyncPeriod;
}
-void SurfaceFlinger::onMessageReceived(int32_t what, nsecs_t when) NO_THREAD_SAFETY_ANALYSIS {
+void SurfaceFlinger::onMessageReceived(int32_t what,
+ nsecs_t expectedVSyncTime) NO_THREAD_SAFETY_ANALYSIS {
ATRACE_CALL();
switch (what) {
case MessageQueue::INVALIDATE: {
@@ -1842,7 +1842,7 @@
// value throughout this frame to make sure all layers are
// seeing this same value.
const nsecs_t lastExpectedPresentTime = mExpectedPresentTime.load();
- populateExpectedPresentTime(when);
+ mExpectedPresentTime = expectedVSyncTime;
// When Backpressure propagation is enabled we want to give a small grace period
// for the present fence to fire instead of just giving up on this frame to handle cases
@@ -3239,7 +3239,6 @@
while (!transactionQueue.empty()) {
const auto& transaction = transactionQueue.front();
if (!transactionIsReadyToBeApplied(transaction.desiredPresentTime,
- true /* useCachedExpectedPresentTime */,
transaction.states)) {
setTransactionFlags(eTransactionFlushNeeded);
break;
@@ -3271,9 +3270,7 @@
bool SurfaceFlinger::transactionIsReadyToBeApplied(int64_t desiredPresentTime,
- bool useCachedExpectedPresentTime,
const Vector<ComposerState>& states) {
- if (!useCachedExpectedPresentTime) populateExpectedPresentTime(systemTime());
const nsecs_t expectedPresentTime = mExpectedPresentTime.load();
// Do not present if the desiredPresentTime has not passed unless it is more than one second
@@ -3325,9 +3322,13 @@
}
}
+ const bool pendingTransactions = itr != mTransactionQueues.end();
// Expected present time is computed and cached on invalidate, so it may be stale.
- if (itr != mTransactionQueues.end() || !transactionIsReadyToBeApplied(
- desiredPresentTime, false /* useCachedExpectedPresentTime */, states)) {
+ if (!pendingTransactions) {
+ mExpectedPresentTime = calculateExpectedPresentTime(systemTime());
+ }
+
+ if (pendingTransactions || !transactionIsReadyToBeApplied(desiredPresentTime, states)) {
mTransactionQueues[applyToken].emplace(states, displays, flags, desiredPresentTime,
uncacheBuffer, postTime, privileged,
hasListenerCallbacks, listenerCallbacks);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 484e3ed..7f6c260 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -315,7 +315,7 @@
// called on the main thread by MessageQueue when an internal message
// is received
// TODO: this should be made accessible only to MessageQueue
- void onMessageReceived(int32_t what, nsecs_t when);
+ void onMessageReceived(int32_t what, nsecs_t expectedVSyncTime);
renderengine::RenderEngine& getRenderEngine() const;
@@ -625,7 +625,6 @@
void commitTransaction() REQUIRES(mStateLock);
void commitOffscreenLayers();
bool transactionIsReadyToBeApplied(int64_t desiredPresentTime,
- bool useCachedExpectedPresentTime,
const Vector<ComposerState>& states);
uint32_t setDisplayStateLocked(const DisplayState& s) REQUIRES(mStateLock);
uint32_t addInputWindowCommands(const InputWindowCommands& inputWindowCommands)
@@ -847,9 +846,9 @@
// Must be called on the main thread.
nsecs_t previousFramePresentTime();
- // Populates the expected present time for this frame. For negative offsets, performs a
+ // Calculates the expected present time for this frame. For negative offsets, performs a
// correction using the predicted vsync for the next frame instead.
- void populateExpectedPresentTime(nsecs_t now);
+ nsecs_t calculateExpectedPresentTime(nsecs_t now) const;
/*
* Display identification
diff --git a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
index 2e705da..afebc40 100644
--- a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
@@ -43,7 +43,7 @@
void createDispSync();
void createDispSyncSource();
- void onVSyncEvent(nsecs_t when) override;
+ void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
std::unique_ptr<mock::DispSync> mDispSync;
std::unique_ptr<DispSyncSource> mDispSyncSource;
@@ -66,7 +66,7 @@
ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
}
-void DispSyncSourceTest::onVSyncEvent(nsecs_t when) {
+void DispSyncSourceTest::onVSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) {
ALOGD("onVSyncEvent: %" PRId64, when);
mVSyncEventCallRecorder.recordCall(when);
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index ba5c0c2..b90b566 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -258,14 +258,14 @@
// Use the received callback to signal a first vsync event.
// The interceptor should receive the event, as well as the connection.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
expectVsyncEventReceivedByConnection(123, 1u);
// Use the received callback to signal a second vsync event.
// The interceptor should receive the event, but the the connection should
// not as it was only interested in the first.
- mCallback->onVSyncEvent(456);
+ mCallback->onVSyncEvent(456, 123);
expectInterceptCallReceived(456);
EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
@@ -299,7 +299,7 @@
// Send a vsync event. EventThread should then make a call to the
// interceptor, and the second connection. The first connection should not
// get the event.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
EXPECT_FALSE(firstConnectionEventRecorder.waitForUnexpectedCall().has_value());
expectVsyncEventReceivedByConnection("secondConnection", secondConnectionEventRecorder, 123,
@@ -314,17 +314,17 @@
// Send a vsync event. EventThread should then make a call to the
// interceptor, and the connection.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
expectVsyncEventReceivedByConnection(123, 1u);
// A second event should go to the same places.
- mCallback->onVSyncEvent(456);
+ mCallback->onVSyncEvent(456, 123);
expectInterceptCallReceived(456);
expectVsyncEventReceivedByConnection(456, 2u);
// A third event should go to the same places.
- mCallback->onVSyncEvent(789);
+ mCallback->onVSyncEvent(789, 777);
expectInterceptCallReceived(789);
expectVsyncEventReceivedByConnection(789, 3u);
}
@@ -336,22 +336,22 @@
expectVSyncSetEnabledCallReceived(true);
// The first event will be seen by the interceptor, and not the connection.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
// The second event will be seen by the interceptor and the connection.
- mCallback->onVSyncEvent(456);
+ mCallback->onVSyncEvent(456, 123);
expectInterceptCallReceived(456);
expectVsyncEventReceivedByConnection(456, 2u);
// The third event will be seen by the interceptor, and not the connection.
- mCallback->onVSyncEvent(789);
+ mCallback->onVSyncEvent(789, 777);
expectInterceptCallReceived(789);
EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
// The fourth event will be seen by the interceptor and the connection.
- mCallback->onVSyncEvent(101112);
+ mCallback->onVSyncEvent(101112, 7847);
expectInterceptCallReceived(101112);
expectVsyncEventReceivedByConnection(101112, 4u);
}
@@ -366,7 +366,7 @@
mConnection = nullptr;
// The first event will be seen by the interceptor, and not the connection.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
@@ -386,13 +386,13 @@
// The first event will be seen by the interceptor, and by the connection,
// which then returns an error.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
// A subsequent event will be seen by the interceptor and not by the
// connection.
- mCallback->onVSyncEvent(456);
+ mCallback->onVSyncEvent(456, 123);
expectInterceptCallReceived(456);
EXPECT_FALSE(errorConnectionEventRecorder.waitForUnexpectedCall().has_value());
@@ -420,7 +420,7 @@
// The first event will be seen by the interceptor, and by the connection,
// which then returns an error.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
expectVsyncEventReceivedByConnection("successConnection", secondConnectionEventRecorder, 123,
@@ -440,13 +440,13 @@
// The first event will be seen by the interceptor, and by the connection,
// which then returns an non-fatal error.
- mCallback->onVSyncEvent(123);
+ mCallback->onVSyncEvent(123, 456);
expectInterceptCallReceived(123);
expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
// A subsequent event will be seen by the interceptor, and by the connection,
// which still then returns an non-fatal error.
- mCallback->onVSyncEvent(456);
+ mCallback->onVSyncEvent(456, 123);
expectInterceptCallReceived(456);
expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 456, 2u);
diff --git a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
index 32c9045..3f14d65 100644
--- a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
@@ -135,7 +135,7 @@
class StubCallback : public DispSync::Callback {
public:
- void onDispSyncEvent(nsecs_t when) final {
+ void onDispSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) final {
std::lock_guard<std::mutex> lk(mMutex);
mLastCallTime = when;
}
@@ -544,7 +544,9 @@
class SelfRemovingCallback : public DispSync::Callback {
public:
SelfRemovingCallback(VSyncReactor& vsr) : mVsr(vsr) {}
- void onDispSyncEvent(nsecs_t when) final { mVsr.removeEventListener(this, &when); }
+ void onDispSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) final {
+ mVsr.removeEventListener(this, &when);
+ }
private:
VSyncReactor& mVsr;
diff --git a/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp b/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
index f6c4f62..1c8c44d 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
+++ b/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
@@ -17,6 +17,7 @@
#include "mock/MockDispSync.h"
#include <thread>
+using namespace std::chrono_literals;
namespace android {
namespace mock {
@@ -54,8 +55,9 @@
void DispSync::triggerCallback() {
if (mCallback.callback == nullptr) return;
- mCallback.callback->onDispSyncEvent(
- std::chrono::steady_clock::now().time_since_epoch().count());
+ const std::chrono::nanoseconds now = std::chrono::steady_clock::now().time_since_epoch();
+ const auto expectedVSyncTime = now + 16ms;
+ mCallback.callback->onDispSyncEvent(now.count(), expectedVSyncTime.count());
}
} // namespace mock