Merge "Create a VsyncSchedule per display" (ba75fbf7) · Commits · e / os / platform_frameworks_native

services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -93,7 +93,7 @@ public:
		MOCK_METHOD2(onHotplug,
		std::optional<DisplayIdentificationInfo>(hal::HWDisplayId, hal::Connection));
		MOCK_CONST_METHOD0(updatesDeviceProductInfoOnHotplugReconnect, bool());
		MOCK_METHOD2(onVsync, bool(hal::HWDisplayId, int64_t));
		MOCK_METHOD(std::optional<PhysicalDisplayId>, onVsync, (hal::HWDisplayId, int64_t));
		MOCK_METHOD2(setVsyncEnabled, void(PhysicalDisplayId, hal::Vsync));
		MOCK_CONST_METHOD1(isConnected, bool(PhysicalDisplayId));
		MOCK_CONST_METHOD1(getModes, std::vector<HWComposer::HWCDisplayMode>(PhysicalDisplayId));

services/surfaceflinger/DisplayHardware/HWComposer.cpp

+12 −10

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@
		#include <compositionengine/Output.h>
		#include <compositionengine/OutputLayer.h>
		#include <compositionengine/impl/OutputLayerCompositionState.h>
		#include <ftl/concat.h>
		#include <log/log.h>
		#include <ui/DebugUtils.h>
		#include <ui/GraphicBuffer.h>
		@@ -148,16 +149,17 @@ bool HWComposer::updatesDeviceProductInfoOnHotplugReconnect() const {
		return mUpdateDeviceProductInfoOnHotplugReconnect;
		}

		bool HWComposer::onVsync(hal::HWDisplayId hwcDisplayId, nsecs_t timestamp) {
		const auto displayId = toPhysicalDisplayId(hwcDisplayId);
		if (!displayId) {
		std::optional<PhysicalDisplayId> HWComposer::onVsync(hal::HWDisplayId hwcDisplayId,
		nsecs_t timestamp) {
		const auto displayIdOpt = toPhysicalDisplayId(hwcDisplayId);
		if (!displayIdOpt) {
		LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid HWC display");
		return false;
		return {};
		}

		RETURN_IF_INVALID_DISPLAY(*displayId, false);
		RETURN_IF_INVALID_DISPLAY(*displayIdOpt, {});

		auto& displayData = mDisplayData[*displayId];
		auto& displayData = mDisplayData[*displayIdOpt];

		{
		// There have been reports of HWCs that signal several vsync events
		@@ -166,18 +168,18 @@ bool HWComposer::onVsync(hal::HWDisplayId hwcDisplayId, nsecs_t timestamp) {
		// out here so they don't cause havoc downstream.
		if (timestamp == displayData.lastPresentTimestamp) {
		ALOGW("Ignoring duplicate VSYNC event from HWC for display %s (t=%" PRId64 ")",
		to_string(*displayId).c_str(), timestamp);
		return false;
		to_string(*displayIdOpt).c_str(), timestamp);
		return {};
		}

		displayData.lastPresentTimestamp = timestamp;
		}

		const auto tag = "HW_VSYNC_" + to_string(*displayId);
		const ftl::Concat tag("HW_VSYNC_", displayIdOpt->value);
		ATRACE_INT(tag.c_str(), displayData.vsyncTraceToggle);
		displayData.vsyncTraceToggle = !displayData.vsyncTraceToggle;

		return true;
		return displayIdOpt;
		}

		size_t HWComposer::getMaxVirtualDisplayCount() const {

services/surfaceflinger/DisplayHardware/HWComposer.h

+5 −2

Original line number	Diff line number	Diff line
		@@ -221,7 +221,10 @@ public:
		// TODO(b/157555476): Remove when the framework has proper support for headless mode
		virtual bool updatesDeviceProductInfoOnHotplugReconnect() const = 0;

		virtual bool onVsync(hal::HWDisplayId, nsecs_t timestamp) = 0;
		// Called when a vsync happens. If the vsync is valid, returns the
		// corresponding PhysicalDisplayId. Otherwise returns nullopt.
		virtual std::optional<PhysicalDisplayId> onVsync(hal::HWDisplayId, nsecs_t timestamp) = 0;

		virtual void setVsyncEnabled(PhysicalDisplayId, hal::Vsync enabled) = 0;

		virtual bool isConnected(PhysicalDisplayId) const = 0;
		@@ -402,7 +405,7 @@ public:

		bool updatesDeviceProductInfoOnHotplugReconnect() const override;

		bool onVsync(hal::HWDisplayId, nsecs_t timestamp) override;
		std::optional<PhysicalDisplayId> onVsync(hal::HWDisplayId, nsecs_t timestamp) override;
		void setVsyncEnabled(PhysicalDisplayId, hal::Vsync enabled) override;

		bool isConnected(PhysicalDisplayId) const override;

services/surfaceflinger/Scheduler/EventThread.cpp

+40 −26

Original line number	Diff line number	Diff line
		@@ -238,29 +238,19 @@ EventThread::~EventThread() = default;

		namespace impl {

		EventThread::EventThread(const char* name, scheduler::VsyncSchedule& vsyncSchedule,
		EventThread::EventThread(const char* name, std::shared_ptr<scheduler::VsyncSchedule> vsyncSchedule,
		IEventThreadCallback& eventThreadCallback,
		android::frametimeline::TokenManager* tokenManager,
		ThrottleVsyncCallback throttleVsyncCallback,
		GetVsyncPeriodFunction getVsyncPeriodFunction,
		std::chrono::nanoseconds workDuration,
		std::chrono::nanoseconds readyDuration)
		: mThreadName(name),
		mVsyncTracer(base::StringPrintf("VSYNC-%s", name), 0),
		mWorkDuration(base::StringPrintf("VsyncWorkDuration-%s", name), workDuration),
		mReadyDuration(readyDuration),
		mVsyncSchedule(vsyncSchedule),
		mVsyncRegistration(
		vsyncSchedule.getDispatch(),
		[this](nsecs_t vsyncTime, nsecs_t wakeupTime, nsecs_t readyTime) {
		onVsync(vsyncTime, wakeupTime, readyTime);
		},
		name),
		mVsyncSchedule(std::move(vsyncSchedule)),
		mVsyncRegistration(mVsyncSchedule->getDispatch(), createDispatchCallback(), name),
		mTokenManager(tokenManager),
		mThrottleVsyncCallback(std::move(throttleVsyncCallback)),
		mGetVsyncPeriodFunction(std::move(getVsyncPeriodFunction)) {
		LOG_ALWAYS_FATAL_IF(getVsyncPeriodFunction == nullptr,
		"getVsyncPeriodFunction must not be null");

		mEventThreadCallback(eventThreadCallback) {
		mThread = std::thread([this]() NO_THREAD_SAFETY_ANALYSIS {
		std::unique_lock<std::mutex> lock(mMutex);
		threadMain(lock);
		@@ -371,16 +361,16 @@ VsyncEventData EventThread::getLatestVsyncEventData(
		}

		VsyncEventData vsyncEventData;
		nsecs_t frameInterval = mGetVsyncPeriodFunction(connection->mOwnerUid);
		vsyncEventData.frameInterval = frameInterval;
		const Fps frameInterval = mEventThreadCallback.getLeaderRenderFrameRate(connection->mOwnerUid);
		vsyncEventData.frameInterval = frameInterval.getPeriodNsecs();
		const auto [presentTime, deadline] = [&]() -> std::pair<nsecs_t, nsecs_t> {
		std::lock_guard<std::mutex> lock(mMutex);
		const auto vsyncTime = mVsyncSchedule.getTracker().nextAnticipatedVSyncTimeFrom(
		const auto vsyncTime = mVsyncSchedule->getTracker().nextAnticipatedVSyncTimeFrom(
		systemTime() + mWorkDuration.get().count() + mReadyDuration.count());
		return {vsyncTime, vsyncTime - mReadyDuration.count()};
		}();
		generateFrameTimeline(vsyncEventData, frameInterval, systemTime(SYSTEM_TIME_MONOTONIC),
		presentTime, deadline);
		generateFrameTimeline(vsyncEventData, frameInterval.getPeriodNsecs(),
		systemTime(SYSTEM_TIME_MONOTONIC), presentTime, deadline);
		return vsyncEventData;
		}

		@@ -541,8 +531,10 @@ void EventThread::threadMain(std::unique_lock<std::mutex>& lock) {
		bool EventThread::shouldConsumeEvent(const DisplayEventReceiver::Event& event,
		const sp<EventThreadConnection>& connection) const {
		const auto throttleVsync = [&] {
		return mThrottleVsyncCallback &&
		mThrottleVsyncCallback(event.vsync.vsyncData.preferredExpectedPresentationTime(),
		const auto& vsyncData = event.vsync.vsyncData;
		const auto expectedPresentTime =
		TimePoint::fromNs(vsyncData.preferredExpectedPresentationTime());
		return !mEventThreadCallback.isVsyncTargetForUid(expectedPresentTime,
		connection->mOwnerUid);
		};

		@@ -631,9 +623,11 @@ void EventThread::dispatchEvent(const DisplayEventReceiver::Event& event,
		for (const auto& consumer : consumers) {
		DisplayEventReceiver::Event copy = event;
		if (event.header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
		const int64_t frameInterval = mGetVsyncPeriodFunction(consumer->mOwnerUid);
		copy.vsync.vsyncData.frameInterval = frameInterval;
		generateFrameTimeline(copy.vsync.vsyncData, frameInterval, copy.header.timestamp,
		const Fps frameInterval =
		mEventThreadCallback.getLeaderRenderFrameRate(consumer->mOwnerUid);
		copy.vsync.vsyncData.frameInterval = frameInterval.getPeriodNsecs();
		generateFrameTimeline(copy.vsync.vsyncData, frameInterval.getPeriodNsecs(),
		copy.header.timestamp,
		event.vsync.vsyncData.preferredExpectedPresentationTime(),
		event.vsync.vsyncData.preferredDeadlineTimestamp());
		}
		@@ -699,6 +693,26 @@ const char* EventThread::toCString(State state) {
		}
		}

		void EventThread::onNewVsyncSchedule(std::shared_ptr<scheduler::VsyncSchedule> schedule) {
		std::lock_guard<std::mutex> lock(mMutex);
		const bool reschedule = mVsyncRegistration.cancel() == scheduler::CancelResult::Cancelled;
		mVsyncSchedule = std::move(schedule);
		mVsyncRegistration =
		scheduler::VSyncCallbackRegistration(mVsyncSchedule->getDispatch(),
		createDispatchCallback(), mThreadName);
		if (reschedule) {
		mVsyncRegistration.schedule({.workDuration = mWorkDuration.get().count(),
		.readyDuration = mReadyDuration.count(),
		.earliestVsync = mLastVsyncCallbackTime.ns()});
		}
		}

		scheduler::VSyncDispatch::Callback EventThread::createDispatchCallback() {
		return [this](nsecs_t vsyncTime, nsecs_t wakeupTime, nsecs_t readyTime) {
		onVsync(vsyncTime, wakeupTime, readyTime);
		};
		}

		} // namespace impl
		} // namespace android

services/surfaceflinger/Scheduler/EventThread.h

+22 −9

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include <sys/types.h>
		#include <utils/Errors.h>

		#include <scheduler/Fps.h>
		#include <scheduler/FrameRateMode.h>
		#include <condition_variable>
		#include <cstdint>
		@@ -67,6 +68,15 @@ enum class VSyncRequest {
		// Subsequent values are periods.
		};

		class IEventThreadCallback {
		public:
		virtual ~IEventThreadCallback() = default;

		virtual bool isVsyncTargetForUid(TimePoint expectedVsyncTime, uid_t uid) const = 0;

		virtual Fps getLeaderRenderFrameRate(uid_t uid) const = 0;
		};

		class EventThreadConnection : public gui::BnDisplayEventConnection {
		public:
		EventThreadConnection(EventThread*, uid_t callingUid, ResyncCallback,
		@@ -133,18 +143,17 @@ public:

		// Retrieves the number of event connections tracked by this EventThread.
		virtual size_t getEventThreadConnectionCount() = 0;

		virtual void onNewVsyncSchedule(std::shared_ptr<scheduler::VsyncSchedule>) = 0;
		};

		namespace impl {

		class EventThread : public android::EventThread {
		public:
		using ThrottleVsyncCallback = std::function<bool(nsecs_t, uid_t)>;
		using GetVsyncPeriodFunction = std::function<nsecs_t(uid_t)>;

		EventThread(const char* name, scheduler::VsyncSchedule&, frametimeline::TokenManager*,
		ThrottleVsyncCallback, GetVsyncPeriodFunction,
		std::chrono::nanoseconds workDuration, std::chrono::nanoseconds readyDuration);
		EventThread(const char* name, std::shared_ptr<scheduler::VsyncSchedule>, IEventThreadCallback&,
		frametimeline::TokenManager*, std::chrono::nanoseconds workDuration,
		std::chrono::nanoseconds readyDuration);
		~EventThread();

		sp<EventThreadConnection> createEventConnection(
		@@ -176,6 +185,8 @@ public:

		size_t getEventThreadConnectionCount() override;

		void onNewVsyncSchedule(std::shared_ptr<scheduler::VsyncSchedule>) override;

		private:
		friend EventThreadTest;

		@@ -199,17 +210,19 @@ private:
		nsecs_t timestamp, nsecs_t preferredExpectedPresentationTime,
		nsecs_t preferredDeadlineTimestamp) const;

		scheduler::VSyncDispatch::Callback createDispatchCallback();

		const char* const mThreadName;
		TracedOrdinal<int> mVsyncTracer;
		TracedOrdinal<std::chrono::nanoseconds> mWorkDuration GUARDED_BY(mMutex);
		std::chrono::nanoseconds mReadyDuration GUARDED_BY(mMutex);
		scheduler::VsyncSchedule& mVsyncSchedule;
		std::shared_ptr<scheduler::VsyncSchedule> mVsyncSchedule;
		TimePoint mLastVsyncCallbackTime GUARDED_BY(mMutex) = TimePoint::now();
		scheduler::VSyncCallbackRegistration mVsyncRegistration GUARDED_BY(mMutex);
		frametimeline::TokenManager* const mTokenManager;

		const ThrottleVsyncCallback mThrottleVsyncCallback;
		const GetVsyncPeriodFunction mGetVsyncPeriodFunction;
		// mEventThreadCallback will outlive the EventThread.
		IEventThreadCallback& mEventThreadCallback;

		std::thread mThread;
		mutable std::mutex mMutex;