SF: Clean up VSyncModulator
This CL refactors redundant code, removes an unnecessary hash map, and
defers construction to obviate ConnectionHandle null checks.
Bug: 130554049
Bug: 133854162
Test: Boot
Change-Id: I0cce9147aebb61c15104fdad3096d5077fc852c4
diff --git a/services/surfaceflinger/Scheduler/PhaseOffsets.cpp b/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
index 8a2604f..9f8567d 100644
--- a/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
+++ b/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
@@ -18,115 +18,102 @@
#include <cutils/properties.h>
+#include <optional>
+
#include "SurfaceFlingerProperties.h"
-namespace android {
-using namespace android::sysprop;
+namespace {
-namespace scheduler {
+std::optional<int> getProperty(const char* name) {
+ char value[PROPERTY_VALUE_MAX];
+ property_get(name, value, "-1");
+ if (const int i = atoi(value); i != -1) return i;
+ return std::nullopt;
+}
-using RefreshRateType = RefreshRateConfigs::RefreshRateType;
+} // namespace
+
+namespace android::scheduler {
+
PhaseOffsets::~PhaseOffsets() = default;
namespace impl {
+
PhaseOffsets::PhaseOffsets() {
- int64_t vsyncPhaseOffsetNs = vsync_event_phase_offset_ns(1000000);
-
- int64_t sfVsyncPhaseOffsetNs = vsync_sf_event_phase_offset_ns(1000000);
-
- char value[PROPERTY_VALUE_MAX];
- property_get("debug.sf.early_phase_offset_ns", value, "-1");
- const int earlySfOffsetNs = atoi(value);
-
- property_get("debug.sf.early_gl_phase_offset_ns", value, "-1");
- const int earlyGlSfOffsetNs = atoi(value);
-
- property_get("debug.sf.early_app_phase_offset_ns", value, "-1");
- const int earlyAppOffsetNs = atoi(value);
-
- property_get("debug.sf.early_gl_app_phase_offset_ns", value, "-1");
- const int earlyGlAppOffsetNs = atoi(value);
-
- property_get("debug.sf.high_fps_early_phase_offset_ns", value, "-1");
- const int highFpsEarlySfOffsetNs = atoi(value);
-
- property_get("debug.sf.high_fps_early_gl_phase_offset_ns", value, "-1");
- const int highFpsEarlyGlSfOffsetNs = atoi(value);
-
- property_get("debug.sf.high_fps_early_app_phase_offset_ns", value, "-1");
- const int highFpsEarlyAppOffsetNs = atoi(value);
-
- property_get("debug.sf.high_fps_early_gl_app_phase_offset_ns", value, "-1");
- const int highFpsEarlyGlAppOffsetNs = atoi(value);
-
- // TODO(b/122905996): Define these in device.mk.
- property_get("debug.sf.high_fps_late_app_phase_offset_ns", value, "2000000");
- const int highFpsLateAppOffsetNs = atoi(value);
-
- property_get("debug.sf.high_fps_late_sf_phase_offset_ns", value, "1000000");
- const int highFpsLateSfOffsetNs = atoi(value);
-
// Below defines the threshold when an offset is considered to be negative, i.e. targeting
// for the N+2 vsync instead of N+1. This means that:
// For offset < threshold, SF wake up (vsync_duration - offset) before HW vsync.
// For offset >= threshold, SF wake up (2 * vsync_duration - offset) before HW vsync.
- property_get("debug.sf.phase_offset_threshold_for_next_vsync_ns", value, "-1");
- const int phaseOffsetThresholdForNextVsyncNs = atoi(value);
+ const nsecs_t thresholdForNextVsync =
+ getProperty("debug.sf.phase_offset_threshold_for_next_vsync_ns")
+ .value_or(std::numeric_limits<nsecs_t>::max());
- Offsets defaultOffsets;
- Offsets highFpsOffsets;
- defaultOffsets.early = {RefreshRateType::DEFAULT,
- earlySfOffsetNs != -1 ? earlySfOffsetNs : sfVsyncPhaseOffsetNs,
- earlyAppOffsetNs != -1 ? earlyAppOffsetNs : vsyncPhaseOffsetNs};
- defaultOffsets.earlyGl = {RefreshRateType::DEFAULT,
- earlyGlSfOffsetNs != -1 ? earlyGlSfOffsetNs : sfVsyncPhaseOffsetNs,
- earlyGlAppOffsetNs != -1 ? earlyGlAppOffsetNs : vsyncPhaseOffsetNs};
- defaultOffsets.late = {RefreshRateType::DEFAULT, sfVsyncPhaseOffsetNs, vsyncPhaseOffsetNs};
-
- highFpsOffsets.early = {RefreshRateType::PERFORMANCE,
- highFpsEarlySfOffsetNs != -1 ? highFpsEarlySfOffsetNs
- : highFpsLateSfOffsetNs,
- highFpsEarlyAppOffsetNs != -1 ? highFpsEarlyAppOffsetNs
- : highFpsLateAppOffsetNs};
- highFpsOffsets.earlyGl = {RefreshRateType::PERFORMANCE,
- highFpsEarlyGlSfOffsetNs != -1 ? highFpsEarlyGlSfOffsetNs
- : highFpsLateSfOffsetNs,
- highFpsEarlyGlAppOffsetNs != -1 ? highFpsEarlyGlAppOffsetNs
- : highFpsLateAppOffsetNs};
- highFpsOffsets.late = {RefreshRateType::PERFORMANCE, highFpsLateSfOffsetNs,
- highFpsLateAppOffsetNs};
+ const Offsets defaultOffsets = getDefaultOffsets(thresholdForNextVsync);
+ const Offsets highFpsOffsets = getHighFpsOffsets(thresholdForNextVsync);
mOffsets.insert({RefreshRateType::POWER_SAVING, defaultOffsets});
mOffsets.insert({RefreshRateType::DEFAULT, defaultOffsets});
mOffsets.insert({RefreshRateType::PERFORMANCE, highFpsOffsets});
-
- mOffsetThresholdForNextVsync = phaseOffsetThresholdForNextVsyncNs != -1
- ? phaseOffsetThresholdForNextVsyncNs
- : std::numeric_limits<nsecs_t>::max();
}
PhaseOffsets::Offsets PhaseOffsets::getOffsetsForRefreshRate(
- android::scheduler::RefreshRateConfigs::RefreshRateType refreshRateType) const {
+ RefreshRateType refreshRateType) const {
return mOffsets.at(refreshRateType);
}
void PhaseOffsets::dump(std::string& result) const {
- const auto [early, earlyGl, late] = getCurrentOffsets();
+ const auto [early, earlyGl, late, threshold] = getCurrentOffsets();
base::StringAppendF(&result,
" app phase: %9" PRId64 " ns\t SF phase: %9" PRId64 " ns\n"
" early app phase: %9" PRId64 " ns\t early SF phase: %9" PRId64 " ns\n"
- "GL early app phase: %9" PRId64 " ns\tGL early SF phase: %9" PRId64 " ns\n",
- late.app, late.sf, early.app, early.sf, earlyGl.app, earlyGl.sf);
+ "GL early app phase: %9" PRId64 " ns\tGL early SF phase: %9" PRId64 " ns\n"
+ "threshold for next VSYNC: %" PRId64 " ns\n",
+ late.app, late.sf, early.app, early.sf, earlyGl.app, earlyGl.sf, threshold);
}
-nsecs_t PhaseOffsets::getCurrentAppOffset() {
- return getCurrentOffsets().late.app;
+PhaseOffsets::Offsets PhaseOffsets::getDefaultOffsets(nsecs_t thresholdForNextVsync) {
+ const int64_t vsyncPhaseOffsetNs = sysprop::vsync_event_phase_offset_ns(1000000);
+ const int64_t sfVsyncPhaseOffsetNs = sysprop::vsync_sf_event_phase_offset_ns(1000000);
+
+ const auto earlySfOffsetNs = getProperty("debug.sf.early_phase_offset_ns");
+ const auto earlyGlSfOffsetNs = getProperty("debug.sf.early_gl_phase_offset_ns");
+ const auto earlyAppOffsetNs = getProperty("debug.sf.early_app_phase_offset_ns");
+ const auto earlyGlAppOffsetNs = getProperty("debug.sf.early_gl_app_phase_offset_ns");
+
+ return {{RefreshRateType::DEFAULT, earlySfOffsetNs.value_or(sfVsyncPhaseOffsetNs),
+ earlyAppOffsetNs.value_or(vsyncPhaseOffsetNs)},
+
+ {RefreshRateType::DEFAULT, earlyGlSfOffsetNs.value_or(sfVsyncPhaseOffsetNs),
+ earlyGlAppOffsetNs.value_or(vsyncPhaseOffsetNs)},
+
+ {RefreshRateType::DEFAULT, sfVsyncPhaseOffsetNs, vsyncPhaseOffsetNs},
+
+ thresholdForNextVsync};
}
-nsecs_t PhaseOffsets::getCurrentSfOffset() {
- return getCurrentOffsets().late.sf;
+PhaseOffsets::Offsets PhaseOffsets::getHighFpsOffsets(nsecs_t thresholdForNextVsync) {
+ // TODO(b/122905996): Define these in device.mk.
+ const int highFpsLateAppOffsetNs =
+ getProperty("debug.sf.high_fps_late_app_phase_offset_ns").value_or(2000000);
+ const int highFpsLateSfOffsetNs =
+ getProperty("debug.sf.high_fps_late_sf_phase_offset_ns").value_or(1000000);
+
+ const auto highFpsEarlySfOffsetNs = getProperty("debug.sf.high_fps_early_phase_offset_ns");
+ const auto highFpsEarlyGlSfOffsetNs = getProperty("debug.sf.high_fps_early_gl_phase_offset_ns");
+ const auto highFpsEarlyAppOffsetNs = getProperty("debug.sf.high_fps_early_app_phase_offset_ns");
+ const auto highFpsEarlyGlAppOffsetNs =
+ getProperty("debug.sf.high_fps_early_gl_app_phase_offset_ns");
+
+ return {{RefreshRateType::PERFORMANCE, highFpsEarlySfOffsetNs.value_or(highFpsLateSfOffsetNs),
+ highFpsEarlyAppOffsetNs.value_or(highFpsLateAppOffsetNs)},
+
+ {RefreshRateType::PERFORMANCE, highFpsEarlyGlSfOffsetNs.value_or(highFpsLateSfOffsetNs),
+ highFpsEarlyGlAppOffsetNs.value_or(highFpsLateAppOffsetNs)},
+
+ {RefreshRateType::PERFORMANCE, highFpsLateSfOffsetNs, highFpsLateAppOffsetNs},
+
+ thresholdForNextVsync};
}
} // namespace impl
-} // namespace scheduler
-} // namespace android
+} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/PhaseOffsets.h b/services/surfaceflinger/Scheduler/PhaseOffsets.h
index 2b5c2f1..2c52432 100644
--- a/services/surfaceflinger/Scheduler/PhaseOffsets.h
+++ b/services/surfaceflinger/Scheduler/PhaseOffsets.h
@@ -16,14 +16,12 @@
#pragma once
-#include <cinttypes>
#include <unordered_map>
#include "RefreshRateConfigs.h"
#include "VSyncModulator.h"
-namespace android {
-namespace scheduler {
+namespace android::scheduler {
/*
* This class encapsulates offsets for different refresh rates. Depending
@@ -33,35 +31,33 @@
*/
class PhaseOffsets {
public:
- struct Offsets {
- VSyncModulator::Offsets early;
- VSyncModulator::Offsets earlyGl;
- VSyncModulator::Offsets late;
- };
+ using Offsets = VSyncModulator::OffsetsConfig;
+ using RefreshRateType = RefreshRateConfigs::RefreshRateType;
virtual ~PhaseOffsets();
- virtual nsecs_t getCurrentAppOffset() = 0;
- virtual nsecs_t getCurrentSfOffset() = 0;
- virtual Offsets getOffsetsForRefreshRate(
- RefreshRateConfigs::RefreshRateType refreshRateType) const = 0;
+ nsecs_t getCurrentAppOffset() const { return getCurrentOffsets().late.app; }
+ nsecs_t getCurrentSfOffset() const { return getCurrentOffsets().late.sf; }
+ nsecs_t getOffsetThresholdForNextVsync() const {
+ return getCurrentOffsets().thresholdForNextVsync;
+ }
+
virtual Offsets getCurrentOffsets() const = 0;
- virtual void setRefreshRateType(RefreshRateConfigs::RefreshRateType refreshRateType) = 0;
- virtual nsecs_t getOffsetThresholdForNextVsync() const = 0;
+ virtual Offsets getOffsetsForRefreshRate(RefreshRateType) const = 0;
+
+ virtual void setRefreshRateType(RefreshRateType) = 0;
+
virtual void dump(std::string& result) const = 0;
};
namespace impl {
+
class PhaseOffsets : public scheduler::PhaseOffsets {
public:
PhaseOffsets();
- nsecs_t getCurrentAppOffset() override;
- nsecs_t getCurrentSfOffset() override;
-
// Returns early, early GL, and late offsets for Apps and SF for a given refresh rate.
- Offsets getOffsetsForRefreshRate(
- RefreshRateConfigs::RefreshRateType refreshRateType) const override;
+ Offsets getOffsetsForRefreshRate(RefreshRateType) const override;
// Returns early, early GL, and late offsets for Apps and SF.
Offsets getCurrentOffsets() const override {
@@ -70,23 +66,21 @@
// This function should be called when the device is switching between different
// refresh rates, to properly update the offsets.
- void setRefreshRateType(RefreshRateConfigs::RefreshRateType refreshRateType) override {
+ void setRefreshRateType(RefreshRateType refreshRateType) override {
mRefreshRateType = refreshRateType;
}
- nsecs_t getOffsetThresholdForNextVsync() const override { return mOffsetThresholdForNextVsync; }
-
// Returns current offsets in human friendly format.
void dump(std::string& result) const override;
private:
- std::atomic<RefreshRateConfigs::RefreshRateType> mRefreshRateType =
- RefreshRateConfigs::RefreshRateType::DEFAULT;
+ static Offsets getDefaultOffsets(nsecs_t thresholdForNextVsync);
+ static Offsets getHighFpsOffsets(nsecs_t thresholdForNextVsync);
- std::unordered_map<RefreshRateConfigs::RefreshRateType, Offsets> mOffsets;
- nsecs_t mOffsetThresholdForNextVsync;
+ std::atomic<RefreshRateType> mRefreshRateType = RefreshRateType::DEFAULT;
+
+ std::unordered_map<RefreshRateType, Offsets> mOffsets;
};
-} // namespace impl
-} // namespace scheduler
-} // namespace android
+} // namespace impl
+} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/VSyncModulator.cpp b/services/surfaceflinger/Scheduler/VSyncModulator.cpp
index 7a3bf8e..f267c99 100644
--- a/services/surfaceflinger/Scheduler/VSyncModulator.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncModulator.cpp
@@ -24,25 +24,24 @@
#include <cinttypes>
#include <mutex>
-namespace android {
+namespace android::scheduler {
-using RefreshRateType = scheduler::RefreshRateConfigs::RefreshRateType;
-VSyncModulator::VSyncModulator() {
+VSyncModulator::VSyncModulator(Scheduler& scheduler,
+ const sp<Scheduler::ConnectionHandle>& appConnectionHandle,
+ const sp<Scheduler::ConnectionHandle>& sfConnectionHandle,
+ const OffsetsConfig& config)
+ : mScheduler(scheduler),
+ mAppConnectionHandle(appConnectionHandle),
+ mSfConnectionHandle(sfConnectionHandle),
+ mOffsetsConfig(config) {
char value[PROPERTY_VALUE_MAX];
property_get("debug.sf.vsync_trace_detailed_info", value, "0");
mTraceDetailedInfo = atoi(value);
- // Populate the offset map with some default offsets.
- const Offsets defaultOffsets = {RefreshRateType::DEFAULT, 0, 0};
- setPhaseOffsets(defaultOffsets, defaultOffsets, defaultOffsets, 0);
}
-void VSyncModulator::setPhaseOffsets(Offsets early, Offsets earlyGl, Offsets late,
- nsecs_t thresholdForNextVsync) {
+void VSyncModulator::setPhaseOffsets(const OffsetsConfig& config) {
std::lock_guard<std::mutex> lock(mMutex);
- mOffsetMap.insert_or_assign(OffsetType::Early, early);
- mOffsetMap.insert_or_assign(OffsetType::EarlyGl, earlyGl);
- mOffsetMap.insert_or_assign(OffsetType::Late, late);
- mThresholdForNextVsync = thresholdForNextVsync;
+ mOffsetsConfig = config;
updateOffsetsLocked();
}
@@ -100,25 +99,21 @@
}
}
-VSyncModulator::Offsets VSyncModulator::getOffsets() {
+VSyncModulator::Offsets VSyncModulator::getOffsets() const {
std::lock_guard<std::mutex> lock(mMutex);
return mOffsets;
}
-VSyncModulator::Offsets VSyncModulator::getNextOffsets() {
- return mOffsetMap.at(getNextOffsetType());
-}
-
-VSyncModulator::OffsetType VSyncModulator::getNextOffsetType() {
+const VSyncModulator::Offsets& VSyncModulator::getNextOffsets() const {
// Early offsets are used if we're in the middle of a refresh rate
// change, or if we recently begin a transaction.
if (mTransactionStart == Scheduler::TransactionStart::EARLY || mRemainingEarlyFrameCount > 0 ||
mRefreshRateChangePending) {
- return OffsetType::Early;
+ return mOffsetsConfig.early;
} else if (mRemainingRenderEngineUsageCount > 0) {
- return OffsetType::EarlyGl;
+ return mOffsetsConfig.earlyGl;
} else {
- return OffsetType::Late;
+ return mOffsetsConfig.late;
}
}
@@ -128,37 +123,29 @@
}
void VSyncModulator::updateOffsetsLocked() {
- const Offsets desired = getNextOffsets();
+ const Offsets& offsets = getNextOffsets();
- if (mSfConnectionHandle != nullptr) {
- mScheduler->setPhaseOffset(mSfConnectionHandle, desired.sf);
- }
+ mScheduler.setPhaseOffset(mSfConnectionHandle, offsets.sf);
+ mScheduler.setPhaseOffset(mAppConnectionHandle, offsets.app);
- if (mAppConnectionHandle != nullptr) {
- mScheduler->setPhaseOffset(mAppConnectionHandle, desired.app);
- }
+ mOffsets = offsets;
- flushOffsets();
-}
-
-void VSyncModulator::flushOffsets() {
- OffsetType type = getNextOffsetType();
- mOffsets = mOffsetMap.at(type);
if (!mTraceDetailedInfo) {
return;
}
- ATRACE_INT("Vsync-EarlyOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::DEFAULT && type == OffsetType::Early);
- ATRACE_INT("Vsync-EarlyGLOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::DEFAULT && type == OffsetType::EarlyGl);
- ATRACE_INT("Vsync-LateOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::DEFAULT && type == OffsetType::Late);
- ATRACE_INT("Vsync-HighFpsEarlyOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::PERFORMANCE && type == OffsetType::Early);
- ATRACE_INT("Vsync-HighFpsEarlyGLOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::PERFORMANCE && type == OffsetType::EarlyGl);
- ATRACE_INT("Vsync-HighFpsLateOffsetsOn",
- mOffsets.fpsMode == RefreshRateType::PERFORMANCE && type == OffsetType::Late);
+
+ const bool isDefault = mOffsets.fpsMode == RefreshRateType::DEFAULT;
+ const bool isPerformance = mOffsets.fpsMode == RefreshRateType::PERFORMANCE;
+ const bool isEarly = &offsets == &mOffsetsConfig.early;
+ const bool isEarlyGl = &offsets == &mOffsetsConfig.earlyGl;
+ const bool isLate = &offsets == &mOffsetsConfig.late;
+
+ ATRACE_INT("Vsync-EarlyOffsetsOn", isDefault && isEarly);
+ ATRACE_INT("Vsync-EarlyGLOffsetsOn", isDefault && isEarlyGl);
+ ATRACE_INT("Vsync-LateOffsetsOn", isDefault && isLate);
+ ATRACE_INT("Vsync-HighFpsEarlyOffsetsOn", isPerformance && isEarly);
+ ATRACE_INT("Vsync-HighFpsEarlyGLOffsetsOn", isPerformance && isEarlyGl);
+ ATRACE_INT("Vsync-HighFpsLateOffsetsOn", isPerformance && isLate);
}
-} // namespace android
+} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/VSyncModulator.h b/services/surfaceflinger/Scheduler/VSyncModulator.h
index ddbd221..636c8c8 100644
--- a/services/surfaceflinger/Scheduler/VSyncModulator.h
+++ b/services/surfaceflinger/Scheduler/VSyncModulator.h
@@ -16,12 +16,11 @@
#pragma once
-#include <cinttypes>
#include <mutex>
#include "Scheduler.h"
-namespace android {
+namespace android::scheduler {
/*
* Modulates the vsync-offsets depending on current SurfaceFlinger state.
@@ -31,51 +30,36 @@
// Number of frames we'll keep the early phase offsets once they are activated for a
// transaction. This acts as a low-pass filter in case the client isn't quick enough in
// sending new transactions.
- const int MIN_EARLY_FRAME_COUNT_TRANSACTION = 2;
+ static constexpr int MIN_EARLY_FRAME_COUNT_TRANSACTION = 2;
// Number of frames we'll keep the early gl phase offsets once they are activated.
// This acts as a low-pass filter to avoid scenarios where we rapidly
// switch in and out of gl composition.
- const int MIN_EARLY_GL_FRAME_COUNT_TRANSACTION = 2;
+ static constexpr int MIN_EARLY_GL_FRAME_COUNT_TRANSACTION = 2;
+
+ using RefreshRateType = RefreshRateConfigs::RefreshRateType;
public:
- VSyncModulator();
-
// Wrapper for a collection of surfaceflinger/app offsets for a particular
- // configuration .
+ // configuration.
struct Offsets {
- scheduler::RefreshRateConfigs::RefreshRateType fpsMode;
+ RefreshRateType fpsMode;
nsecs_t sf;
nsecs_t app;
};
- enum class OffsetType {
- Early,
- EarlyGl,
- Late,
+ struct OffsetsConfig {
+ Offsets early; // For transactions with the eEarlyWakeup flag.
+ Offsets earlyGl; // As above but while compositing with GL.
+ Offsets late; // Default.
+
+ nsecs_t thresholdForNextVsync;
};
- // Sets the phase offsets
- //
- // sfEarly: The phase offset when waking up SF early, which happens when marking a transaction
- // as early. May be the same as late, in which case we don't shift offsets.
- // sfEarlyGl: Like sfEarly, but only if we used GL composition. If we use both GL composition
- // and the transaction was marked as early, we'll use sfEarly.
- // sfLate: The regular SF vsync phase offset.
- // appEarly: Like sfEarly, but for the app-vsync
- // appEarlyGl: Like sfEarlyGl, but for the app-vsync.
- // appLate: The regular app vsync phase offset.
- void setPhaseOffsets(Offsets early, Offsets earlyGl, Offsets late,
- nsecs_t thresholdForNextVsync) EXCLUDES(mMutex);
+ VSyncModulator(Scheduler&, const sp<Scheduler::ConnectionHandle>& appConnectionHandle,
+ const sp<Scheduler::ConnectionHandle>& sfConnectionHandle, const OffsetsConfig&);
- // Sets the scheduler and vsync connection handlers.
- void setSchedulerAndHandles(Scheduler* scheduler,
- Scheduler::ConnectionHandle* appConnectionHandle,
- Scheduler::ConnectionHandle* sfConnectionHandle) {
- mScheduler = scheduler;
- mAppConnectionHandle = appConnectionHandle;
- mSfConnectionHandle = sfConnectionHandle;
- }
+ void setPhaseOffsets(const OffsetsConfig&) EXCLUDES(mMutex);
// Signals that a transaction has started, and changes offsets accordingly.
void setTransactionStart(Scheduler::TransactionStart transactionStart);
@@ -98,28 +82,23 @@
void onRefreshed(bool usedRenderEngine);
// Returns the offsets that we are currently using
- Offsets getOffsets() EXCLUDES(mMutex);
+ Offsets getOffsets() const EXCLUDES(mMutex);
private:
// Returns the next offsets that we should be using
- Offsets getNextOffsets() REQUIRES(mMutex);
- // Returns the next offset type that we should use.
- OffsetType getNextOffsetType();
+ const Offsets& getNextOffsets() const REQUIRES(mMutex);
// Updates offsets and persists them into the scheduler framework.
void updateOffsets() EXCLUDES(mMutex);
void updateOffsetsLocked() REQUIRES(mMutex);
- // Updates the internal offsets and offset type.
- void flushOffsets() REQUIRES(mMutex);
+
+ Scheduler& mScheduler;
+ const sp<Scheduler::ConnectionHandle> mAppConnectionHandle;
+ const sp<Scheduler::ConnectionHandle> mSfConnectionHandle;
mutable std::mutex mMutex;
- std::unordered_map<OffsetType, Offsets> mOffsetMap GUARDED_BY(mMutex);
- nsecs_t mThresholdForNextVsync;
+ OffsetsConfig mOffsetsConfig GUARDED_BY(mMutex);
- Scheduler* mScheduler = nullptr;
- Scheduler::ConnectionHandle* mAppConnectionHandle = nullptr;
- Scheduler::ConnectionHandle* mSfConnectionHandle = nullptr;
-
- Offsets mOffsets GUARDED_BY(mMutex) = {Scheduler::RefreshRateType::DEFAULT, 0, 0};
+ Offsets mOffsets GUARDED_BY(mMutex){mOffsetsConfig.late};
std::atomic<Scheduler::TransactionStart> mTransactionStart =
Scheduler::TransactionStart::NORMAL;
@@ -130,4 +109,4 @@
bool mTraceDetailedInfo = false;
};
-} // namespace android
+} // namespace android::scheduler
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index cd80f2b..604ad34 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -276,11 +276,11 @@
SurfaceFlinger::SurfaceFlinger(Factory& factory, SkipInitializationTag)
: mFactory(factory),
- mPhaseOffsets(mFactory.createPhaseOffsets()),
mInterceptor(mFactory.createSurfaceInterceptor(this)),
mTimeStats(mFactory.createTimeStats()),
mEventQueue(mFactory.createMessageQueue()),
- mCompositionEngine(mFactory.createCompositionEngine()) {}
+ mCompositionEngine(mFactory.createCompositionEngine()),
+ mPhaseOffsets(mFactory.createPhaseOffsets()) {}
SurfaceFlinger::SurfaceFlinger(Factory& factory) : SurfaceFlinger(factory, SkipInitialization) {
ALOGI("SurfaceFlinger is starting");
@@ -386,10 +386,6 @@
property_get("debug.sf.luma_sampling", value, "1");
mLumaSampling = atoi(value);
- const auto [early, gl, late] = mPhaseOffsets->getCurrentOffsets();
- mVsyncModulator.setPhaseOffsets(early, gl, late,
- mPhaseOffsets->getOffsetThresholdForNextVsync());
-
// We should be reading 'persist.sys.sf.color_saturation' here
// but since /data may be encrypted, we need to wait until after vold
// comes online to attempt to read the property. The property is
@@ -616,7 +612,7 @@
ALOGI( "SurfaceFlinger's main thread ready to run. "
"Initializing graphics H/W...");
- ALOGI("Phase offset NS: %" PRId64 "", mPhaseOffsets->getCurrentAppOffset());
+ ALOGI("Phase offset: %" PRId64 " ns", mPhaseOffsets->getCurrentAppOffset());
Mutex::Autolock _l(mStateLock);
// start the EventThread
@@ -627,20 +623,21 @@
mScheduler->makeResyncCallback(std::bind(&SurfaceFlinger::getVsyncPeriod, this));
mAppConnectionHandle =
- mScheduler->createConnection("app", mVsyncModulator.getOffsets().app,
+ mScheduler->createConnection("app", mPhaseOffsets->getCurrentAppOffset(),
mPhaseOffsets->getOffsetThresholdForNextVsync(),
resyncCallback,
impl::EventThread::InterceptVSyncsCallback());
mSfConnectionHandle =
- mScheduler->createConnection("sf", mVsyncModulator.getOffsets().sf,
+ mScheduler->createConnection("sf", mPhaseOffsets->getCurrentSfOffset(),
mPhaseOffsets->getOffsetThresholdForNextVsync(),
resyncCallback, [this](nsecs_t timestamp) {
mInterceptor->saveVSyncEvent(timestamp);
});
mEventQueue->setEventConnection(mScheduler->getEventConnection(mSfConnectionHandle));
- mVsyncModulator.setSchedulerAndHandles(mScheduler.get(), mAppConnectionHandle.get(),
- mSfConnectionHandle.get());
+
+ mVSyncModulator.emplace(*mScheduler, mAppConnectionHandle, mSfConnectionHandle,
+ mPhaseOffsets->getCurrentOffsets());
mRegionSamplingThread =
new RegionSamplingThread(*this, *mScheduler,
@@ -969,11 +966,9 @@
mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
// As we called to set period, we will call to onRefreshRateChangeCompleted once
// DispSync model is locked.
- mVsyncModulator.onRefreshRateChangeInitiated();
+ mVSyncModulator->onRefreshRateChangeInitiated();
mPhaseOffsets->setRefreshRateType(info.type);
- const auto [early, gl, late] = mPhaseOffsets->getCurrentOffsets();
- mVsyncModulator.setPhaseOffsets(early, gl, late,
- mPhaseOffsets->getOffsetThresholdForNextVsync());
+ mVSyncModulator->setPhaseOffsets(mPhaseOffsets->getCurrentOffsets());
}
mDesiredActiveConfigChanged = true;
ATRACE_INT("DesiredActiveConfigChanged", mDesiredActiveConfigChanged);
@@ -1006,9 +1001,7 @@
display->setActiveConfig(mUpcomingActiveConfig.configId);
mPhaseOffsets->setRefreshRateType(mUpcomingActiveConfig.type);
- const auto [early, gl, late] = mPhaseOffsets->getCurrentOffsets();
- mVsyncModulator.setPhaseOffsets(early, gl, late,
- mPhaseOffsets->getOffsetThresholdForNextVsync());
+ mVSyncModulator->setPhaseOffsets(mPhaseOffsets->getCurrentOffsets());
ATRACE_INT("ActiveConfigMode", mUpcomingActiveConfig.configId);
if (mUpcomingActiveConfig.event != Scheduler::ConfigEvent::None) {
@@ -1025,9 +1018,7 @@
mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
mPhaseOffsets->setRefreshRateType(mUpcomingActiveConfig.type);
- const auto [early, gl, late] = mPhaseOffsets->getCurrentOffsets();
- mVsyncModulator.setPhaseOffsets(early, gl, late,
- mPhaseOffsets->getOffsetThresholdForNextVsync());
+ mVSyncModulator->setPhaseOffsets(mPhaseOffsets->getCurrentOffsets());
}
bool SurfaceFlinger::performSetActiveConfig() {
@@ -1494,7 +1485,7 @@
bool periodFlushed = false;
mScheduler->addResyncSample(timestamp, &periodFlushed);
if (periodFlushed) {
- mVsyncModulator.onRefreshRateChangeCompleted();
+ mVSyncModulator->onRefreshRateChangeCompleted();
}
}
@@ -1686,7 +1677,7 @@
// woken up before the actual vsync but targeting the next vsync, we need to check
// fence N-2
const sp<Fence>& fence =
- mVsyncModulator.getOffsets().sf < mPhaseOffsets->getOffsetThresholdForNextVsync()
+ mVSyncModulator->getOffsets().sf < mPhaseOffsets->getOffsetThresholdForNextVsync()
? mPreviousPresentFences[0]
: mPreviousPresentFences[1];
@@ -1698,7 +1689,7 @@
mScheduler->getDisplayStatInfo(&stats);
const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime();
// Inflate the expected present time if we're targetting the next vsync.
- mExpectedPresentTime.store(mVsyncModulator.getOffsets().sf <
+ mExpectedPresentTime.store(mVSyncModulator->getOffsets().sf <
mPhaseOffsets->getOffsetThresholdForNextVsync()
? presentTime
: presentTime + stats.vsyncPeriod);
@@ -1831,7 +1822,7 @@
mHadDeviceComposition || getHwComposer().hasDeviceComposition(displayId);
}
- mVsyncModulator.onRefreshed(mHadClientComposition);
+ mVSyncModulator->onRefreshed(mHadClientComposition);
mLayersWithQueuedFrames.clear();
if (mVisibleRegionsDirty) {
@@ -2583,7 +2574,7 @@
// with mStateLock held to guarantee that mCurrentState won't change
// until the transaction is committed.
- mVsyncModulator.onTransactionHandled();
+ mVSyncModulator->onTransactionHandled();
transactionFlags = getTransactionFlags(eTransactionMask);
handleTransactionLocked(transactionFlags);
@@ -3636,7 +3627,7 @@
uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags,
Scheduler::TransactionStart transactionStart) {
uint32_t old = mTransactionFlags.fetch_or(flags);
- mVsyncModulator.setTransactionStart(transactionStart);
+ mVSyncModulator->setTransactionStart(transactionStart);
if ((old & flags)==0) { // wake the server up
signalTransaction();
}
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 099ba72..d474eaa 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -68,6 +68,7 @@
#include <map>
#include <memory>
#include <mutex>
+#include <optional>
#include <queue>
#include <set>
#include <string>
@@ -962,11 +963,6 @@
std::unique_ptr<EventThread> mInjectorEventThread;
std::unique_ptr<InjectVSyncSource> mVSyncInjector;
- // Calculates correct offsets.
- VSyncModulator mVsyncModulator;
- // Keeps track of all available phase offsets for different refresh types.
- const std::unique_ptr<scheduler::PhaseOffsets> mPhaseOffsets;
-
// Can only accessed from the main thread, these members
// don't need synchronization
State mDrawingState{LayerVector::StateSet::Drawing};
@@ -1131,6 +1127,12 @@
sp<Scheduler::ConnectionHandle> mAppConnectionHandle;
sp<Scheduler::ConnectionHandle> mSfConnectionHandle;
+ // Stores phase offsets configured per refresh rate.
+ const std::unique_ptr<scheduler::PhaseOffsets> mPhaseOffsets;
+
+ // Optional to defer construction until scheduler connections are created.
+ std::optional<scheduler::VSyncModulator> mVSyncModulator;
+
scheduler::RefreshRateConfigs mRefreshRateConfigs;
scheduler::RefreshRateStats mRefreshRateStats{mRefreshRateConfigs, *mTimeStats};
diff --git a/services/surfaceflinger/tests/unittests/FakePhaseOffsets.h b/services/surfaceflinger/tests/unittests/FakePhaseOffsets.h
index 1d75011..66c7f6b 100644
--- a/services/surfaceflinger/tests/unittests/FakePhaseOffsets.h
+++ b/services/surfaceflinger/tests/unittests/FakePhaseOffsets.h
@@ -20,42 +20,22 @@
#include "Scheduler/PhaseOffsets.h"
-namespace android {
-namespace scheduler {
+namespace android::scheduler {
-using RefreshRateType = RefreshRateConfigs::RefreshRateType;
+struct FakePhaseOffsets : PhaseOffsets {
+ static constexpr nsecs_t FAKE_PHASE_OFFSET_NS = 0;
-class FakePhaseOffsets : public android::scheduler::PhaseOffsets {
- nsecs_t FAKE_PHASE_OFFSET_NS = 0;
+ Offsets getOffsetsForRefreshRate(RefreshRateType) const override { return getCurrentOffsets(); }
-public:
- FakePhaseOffsets() = default;
- ~FakePhaseOffsets() = default;
-
- nsecs_t getCurrentAppOffset() override { return FAKE_PHASE_OFFSET_NS; }
- nsecs_t getCurrentSfOffset() override { return FAKE_PHASE_OFFSET_NS; }
-
- PhaseOffsets::Offsets getOffsetsForRefreshRate(
- RefreshRateType /*refreshRateType*/) const override {
- return getCurrentOffsets();
+ Offsets getCurrentOffsets() const override {
+ return {{RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS},
+ {RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS},
+ {RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS},
+ FAKE_PHASE_OFFSET_NS};
}
- // Returns early, early GL, and late offsets for Apps and SF.
- PhaseOffsets::Offsets getCurrentOffsets() const override {
- return Offsets{{RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS},
- {RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS},
- {RefreshRateType::DEFAULT, FAKE_PHASE_OFFSET_NS, FAKE_PHASE_OFFSET_NS}};
- }
-
- // This function should be called when the device is switching between different
- // refresh rates, to properly update the offsets.
- void setRefreshRateType(RefreshRateType /*refreshRateType*/) override {}
-
- nsecs_t getOffsetThresholdForNextVsync() const override { return FAKE_PHASE_OFFSET_NS; }
-
- // Returns current offsets in human friendly format.
- void dump(std::string& /*result*/) const override {}
+ void setRefreshRateType(RefreshRateType) override {}
+ void dump(std::string&) const override {}
};
-} // namespace scheduler
-} // namespace android
+} // namespace android::scheduler
