Revert "SF: Encapsulate frame targeting"

This reverts commit c183eed053289c242c32c5c35a7071863165a61d.

Reason for revert: Regression in SF performance.

Bug: 281884106
Test: Jank suites
Change-Id: I05adaa57c955a8c09c210943bc06977b48362aa4
diff --git a/libs/ui/include/ui/FenceTime.h b/libs/ui/include/ui/FenceTime.h
index 334106f..ac75f43 100644
--- a/libs/ui/include/ui/FenceTime.h
+++ b/libs/ui/include/ui/FenceTime.h
@@ -142,8 +142,6 @@
     std::atomic<nsecs_t> mSignalTime{Fence::SIGNAL_TIME_INVALID};
 };
 
-using FenceTimePtr = std::shared_ptr<FenceTime>;
-
 // A queue of FenceTimes that are expected to signal in FIFO order.
 // Only maintains a queue of weak pointers so it doesn't keep references
 // to Fences on its own.
@@ -192,15 +190,8 @@
 // before the new one is added.
 class FenceToFenceTimeMap {
 public:
-    using FencePair = std::pair<sp<Fence>, FenceTimePtr>;
-
-    FencePair makePendingFenceForTest() {
-        const auto fence = sp<Fence>::make();
-        return {fence, createFenceTimeForTest(fence)};
-    }
-
-    // Create a new FenceTime that wraps the provided Fence.
-    FenceTimePtr createFenceTimeForTest(const sp<Fence>&);
+    // Create a new FenceTime with that wraps the provided Fence.
+    std::shared_ptr<FenceTime> createFenceTimeForTest(const sp<Fence>& fence);
 
     // Signals all FenceTimes created through this class that are wrappers
     // around |fence|.
@@ -214,6 +205,7 @@
     std::unordered_map<Fence*, std::vector<std::weak_ptr<FenceTime>>> mMap;
 };
 
-} // namespace android
+
+}; // namespace android
 
 #endif // ANDROID_FENCE_TIME_H
diff --git a/services/surfaceflinger/Scheduler/Android.bp b/services/surfaceflinger/Scheduler/Android.bp
index 6d2586a..d5d8688 100644
--- a/services/surfaceflinger/Scheduler/Android.bp
+++ b/services/surfaceflinger/Scheduler/Android.bp
@@ -40,7 +40,6 @@
     name: "libscheduler",
     defaults: ["libscheduler_defaults"],
     srcs: [
-        "src/FrameTargeter.cpp",
         "src/PresentLatencyTracker.cpp",
         "src/Timer.cpp",
     ],
@@ -53,7 +52,6 @@
     test_suites: ["device-tests"],
     defaults: ["libscheduler_defaults"],
     srcs: [
-        "tests/FrameTargeterTest.cpp",
         "tests/PresentLatencyTrackerTest.cpp",
         "tests/TimerTest.cpp",
     ],
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 41639b6..918d401 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -171,21 +171,14 @@
 
 void Scheduler::onFrameSignal(ICompositor& compositor, VsyncId vsyncId,
                               TimePoint expectedVsyncTime) {
-    mPacesetterFrameTargeter.beginFrame({.frameBeginTime = SchedulerClock::now(),
-                                         .vsyncId = vsyncId,
-                                         .expectedVsyncTime = expectedVsyncTime,
-                                         .sfWorkDuration =
-                                                 mVsyncModulator->getVsyncConfig().sfWorkDuration},
-                                        *getVsyncSchedule());
+    const TimePoint frameTime = SchedulerClock::now();
 
-    if (!compositor.commit(mPacesetterFrameTargeter.target())) {
+    if (!compositor.commit(frameTime, vsyncId, expectedVsyncTime)) {
         return;
     }
 
-    const auto compositeResult = compositor.composite(mPacesetterFrameTargeter);
+    compositor.composite(frameTime, vsyncId);
     compositor.sample();
-
-    mPacesetterFrameTargeter.endFrame(compositeResult);
 }
 
 std::optional<Fps> Scheduler::getFrameRateOverride(uid_t uid) const {
@@ -195,23 +188,23 @@
             .getFrameRateOverrideForUid(uid, supportsFrameRateOverrideByContent);
 }
 
-bool Scheduler::isVsyncValid(TimePoint expectedVsyncTime, uid_t uid) const {
+bool Scheduler::isVsyncValid(TimePoint expectedVsyncTimestamp, uid_t uid) const {
     const auto frameRate = getFrameRateOverride(uid);
     if (!frameRate.has_value()) {
         return true;
     }
 
     ATRACE_FORMAT("%s uid: %d frameRate: %s", __func__, uid, to_string(*frameRate).c_str());
-    return getVsyncSchedule()->getTracker().isVSyncInPhase(expectedVsyncTime.ns(), *frameRate);
+    return getVsyncSchedule()->getTracker().isVSyncInPhase(expectedVsyncTimestamp.ns(), *frameRate);
 }
 
-bool Scheduler::isVsyncInPhase(TimePoint expectedVsyncTime, Fps frameRate) const {
-    return getVsyncSchedule()->getTracker().isVSyncInPhase(expectedVsyncTime.ns(), frameRate);
+bool Scheduler::isVsyncInPhase(TimePoint timePoint, const Fps frameRate) const {
+    return getVsyncSchedule()->getTracker().isVSyncInPhase(timePoint.ns(), frameRate);
 }
 
 impl::EventThread::ThrottleVsyncCallback Scheduler::makeThrottleVsyncCallback() const {
-    return [this](nsecs_t expectedVsyncTime, uid_t uid) {
-        return !isVsyncValid(TimePoint::fromNs(expectedVsyncTime), uid);
+    return [this](nsecs_t expectedVsyncTimestamp, uid_t uid) {
+        return !isVsyncValid(TimePoint::fromNs(expectedVsyncTimestamp), uid);
     };
 }
 
@@ -723,8 +716,6 @@
 
     mFrameRateOverrideMappings.dump(dumper);
     dumper.eol();
-
-    mPacesetterFrameTargeter.dump(dumper);
 }
 
 void Scheduler::dumpVsync(std::string& out) const {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 17e9cea..a1354fa 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -35,7 +35,6 @@
 #include <ftl/fake_guard.h>
 #include <ftl/optional.h>
 #include <scheduler/Features.h>
-#include <scheduler/FrameTargeter.h>
 #include <scheduler/Time.h>
 #include <scheduler/VsyncConfig.h>
 #include <ui/DisplayId.h>
@@ -250,11 +249,9 @@
         return std::const_pointer_cast<VsyncSchedule>(std::as_const(*this).getVsyncSchedule(idOpt));
     }
 
-    const FrameTarget& pacesetterFrameTarget() { return mPacesetterFrameTargeter.target(); }
-
     // Returns true if a given vsync timestamp is considered valid vsync
     // for a given uid
-    bool isVsyncValid(TimePoint expectedVsyncTime, uid_t uid) const;
+    bool isVsyncValid(TimePoint expectedVsyncTimestamp, uid_t uid) const;
 
     bool isVsyncInPhase(TimePoint expectedVsyncTime, Fps frameRate) const;
 
@@ -449,8 +446,6 @@
     ftl::Optional<PhysicalDisplayId> mPacesetterDisplayId GUARDED_BY(mDisplayLock)
             GUARDED_BY(kMainThreadContext);
 
-    FrameTargeter mPacesetterFrameTargeter{mFeatures.test(Feature::kBackpressureGpuComposition)};
-
     ftl::Optional<DisplayRef> pacesetterDisplayLocked() REQUIRES(mDisplayLock) {
         return static_cast<const Scheduler*>(this)->pacesetterDisplayLocked().transform(
                 [](const Display& display) { return std::ref(const_cast<Display&>(display)); });
diff --git a/services/surfaceflinger/Scheduler/VsyncSchedule.h b/services/surfaceflinger/Scheduler/VsyncSchedule.h
index 0757b57..5eca29a 100644
--- a/services/surfaceflinger/Scheduler/VsyncSchedule.h
+++ b/services/surfaceflinger/Scheduler/VsyncSchedule.h
@@ -20,16 +20,13 @@
 #include <memory>
 #include <string>
 
+#include <ThreadContext.h>
 #include <android-base/thread_annotations.h>
 #include <ftl/enum.h>
 #include <ftl/optional.h>
-#include <ui/DisplayId.h>
-
 #include <scheduler/Features.h>
-#include <scheduler/IVsyncSource.h>
 #include <scheduler/Time.h>
-
-#include "ThreadContext.h"
+#include <ui/DisplayId.h>
 
 namespace android {
 class EventThreadTest;
@@ -51,16 +48,15 @@
 using VsyncTracker = VSyncTracker;
 
 // Schedule that synchronizes to hardware VSYNC of a physical display.
-class VsyncSchedule final : public IVsyncSource {
+class VsyncSchedule {
 public:
     using RequestHardwareVsync = std::function<void(PhysicalDisplayId, bool enabled)>;
 
     VsyncSchedule(PhysicalDisplayId, FeatureFlags, RequestHardwareVsync);
     ~VsyncSchedule();
 
-    // IVsyncSource overrides:
-    Period period() const override;
-    TimePoint vsyncDeadlineAfter(TimePoint) const override;
+    Period period() const;
+    TimePoint vsyncDeadlineAfter(TimePoint) const;
 
     // Inform the schedule that the period is changing and the schedule needs to recalibrate
     // itself. The schedule will end the period transition internally. This will
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/Features.h b/services/surfaceflinger/Scheduler/include/scheduler/Features.h
index 200407d..b3a6a60 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/Features.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/Features.h
@@ -23,11 +23,10 @@
 namespace android::scheduler {
 
 enum class Feature : std::uint8_t {
-    kPresentFences = 1 << 0,
-    kKernelIdleTimer = 1 << 1,
-    kContentDetection = 1 << 2,
-    kTracePredictedVsync = 1 << 3,
-    kBackpressureGpuComposition = 1 << 4,
+    kPresentFences = 0b1,
+    kKernelIdleTimer = 0b10,
+    kContentDetection = 0b100,
+    kTracePredictedVsync = 0b1000,
 };
 
 using FeatureFlags = ftl::Flags<Feature>;
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
deleted file mode 100644
index 6878370..0000000
--- a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <array>
-#include <atomic>
-#include <memory>
-
-#include <ui/Fence.h>
-#include <ui/FenceTime.h>
-
-#include <scheduler/Time.h>
-#include <scheduler/VsyncId.h>
-#include <scheduler/interface/CompositeResult.h>
-
-// TODO(b/185536303): Pull to FTL.
-#include "../../../TracedOrdinal.h"
-#include "../../../Utils/Dumper.h"
-
-namespace android::scheduler {
-
-struct IVsyncSource;
-
-// Read-only interface to the metrics computed by FrameTargeter for the latest frame.
-class FrameTarget {
-public:
-    VsyncId vsyncId() const { return mVsyncId; }
-
-    // The time when the frame actually began, as opposed to when it had been scheduled to begin.
-    TimePoint frameBeginTime() const { return mFrameBeginTime; }
-
-    // Relative to when the frame actually began, as opposed to when it had been scheduled to begin.
-    Duration expectedFrameDuration() const { return mExpectedPresentTime - mFrameBeginTime; }
-
-    TimePoint expectedPresentTime() const { return mExpectedPresentTime; }
-
-    // The time of the VSYNC that preceded this frame. See `presentFenceForPastVsync` for details.
-    TimePoint pastVsyncTime(Period vsyncPeriod) const;
-
-    // The present fence for the frame that had targeted the most recent VSYNC before this frame.
-    // If the target VSYNC for any given frame is more than `vsyncPeriod` in the future, then the
-    // VSYNC of at least one previous frame has not yet passed. In other words, this is NOT the
-    // fence of the previous frame if running N VSYNCs ahead, but the one that should have been
-    // signaled by now (unless that frame missed).
-    const FenceTimePtr& presentFenceForPastVsync(Period vsyncPeriod) const;
-
-    bool wouldPresentEarly(Period vsyncPeriod) const;
-
-    bool isFramePending() const { return mFramePending; }
-    bool didMissFrame() const { return mFrameMissed; }
-    bool didMissHwcFrame() const { return mHwcFrameMissed && !mGpuFrameMissed; }
-
-protected:
-    ~FrameTarget() = default;
-
-    VsyncId mVsyncId;
-    TimePoint mFrameBeginTime;
-    TimePoint mExpectedPresentTime;
-
-    TracedOrdinal<bool> mFramePending{"PrevFramePending", false};
-    TracedOrdinal<bool> mFrameMissed{"PrevFrameMissed", false};
-    TracedOrdinal<bool> mHwcFrameMissed{"PrevHwcFrameMissed", false};
-    TracedOrdinal<bool> mGpuFrameMissed{"PrevGpuFrameMissed", false};
-
-    struct FenceWithFenceTime {
-        sp<Fence> fence = Fence::NO_FENCE;
-        FenceTimePtr fenceTime = FenceTime::NO_FENCE;
-    };
-    std::array<FenceWithFenceTime, 2> mPresentFences;
-
-private:
-    template <int N>
-    inline bool targetsVsyncsAhead(Period vsyncPeriod) const {
-        static_assert(N > 1);
-        return expectedFrameDuration() > (N - 1) * vsyncPeriod;
-    }
-};
-
-// Computes a display's per-frame metrics about past/upcoming targeting of present deadlines.
-class FrameTargeter final : private FrameTarget {
-public:
-    explicit FrameTargeter(bool backpressureGpuComposition)
-          : mBackpressureGpuComposition(backpressureGpuComposition) {}
-
-    const FrameTarget& target() const { return *this; }
-
-    struct BeginFrameArgs {
-        TimePoint frameBeginTime;
-        VsyncId vsyncId;
-        TimePoint expectedVsyncTime;
-        Duration sfWorkDuration;
-    };
-
-    void beginFrame(const BeginFrameArgs&, const IVsyncSource&);
-
-    // TODO(b/241285191): Merge with FrameTargeter::endFrame.
-    FenceTimePtr setPresentFence(sp<Fence>);
-
-    void endFrame(const CompositeResult&);
-
-    void dump(utils::Dumper&) const;
-
-private:
-    friend class FrameTargeterTest;
-
-    // For tests.
-    using IsFencePendingFuncPtr = bool (*)(const FenceTimePtr&, int graceTimeMs);
-    void beginFrame(const BeginFrameArgs&, const IVsyncSource&, IsFencePendingFuncPtr);
-    FenceTimePtr setPresentFence(sp<Fence>, FenceTimePtr);
-
-    static bool isFencePending(const FenceTimePtr&, int graceTimeMs);
-
-    const bool mBackpressureGpuComposition;
-
-    TimePoint mScheduledPresentTime;
-    CompositionCoverageFlags mCompositionCoverage;
-
-    std::atomic_uint mFrameMissedCount = 0;
-    std::atomic_uint mHwcFrameMissedCount = 0;
-    std::atomic_uint mGpuFrameMissedCount = 0;
-};
-
-} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/IVsyncSource.h b/services/surfaceflinger/Scheduler/include/scheduler/IVsyncSource.h
deleted file mode 100644
index bb2de75..0000000
--- a/services/surfaceflinger/Scheduler/include/scheduler/IVsyncSource.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <scheduler/Time.h>
-
-namespace android::scheduler {
-
-struct IVsyncSource {
-    virtual Period period() const = 0;
-    virtual TimePoint vsyncDeadlineAfter(TimePoint) const = 0;
-
-protected:
-    ~IVsyncSource() = default;
-};
-
-} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/interface/CompositeResult.h b/services/surfaceflinger/Scheduler/include/scheduler/interface/CompositeResult.h
deleted file mode 100644
index f795f1f..0000000
--- a/services/surfaceflinger/Scheduler/include/scheduler/interface/CompositeResult.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <scheduler/interface/CompositionCoverage.h>
-
-namespace android {
-
-struct CompositeResult {
-    CompositionCoverageFlags compositionCoverage;
-};
-
-} // namespace android
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h b/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
index 2696076..cc41925 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/interface/ICompositor.h
@@ -18,15 +18,8 @@
 
 #include <scheduler/Time.h>
 #include <scheduler/VsyncId.h>
-#include <scheduler/interface/CompositeResult.h>
 
 namespace android {
-namespace scheduler {
-
-class FrameTarget;
-class FrameTargeter;
-
-} // namespace scheduler
 
 struct ICompositor {
     // Configures physical displays, processing hotplug and/or mode setting via the Composer HAL.
@@ -34,11 +27,11 @@
 
     // Commits transactions for layers and displays. Returns whether any state has been invalidated,
     // i.e. whether a frame should be composited for each display.
-    virtual bool commit(const scheduler::FrameTarget&) = 0;
+    virtual bool commit(TimePoint frameTime, VsyncId, TimePoint expectedVsyncTime) = 0;
 
     // Composites a frame for each display. CompositionEngine performs GPU and/or HAL composition
     // via RenderEngine and the Composer HAL, respectively.
-    virtual CompositeResult composite(scheduler::FrameTargeter&) = 0;
+    virtual void composite(TimePoint frameTime, VsyncId) = 0;
 
     // Samples the composited frame via RegionSamplingThread.
     virtual void sample() = 0;
diff --git a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp b/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
deleted file mode 100644
index cf4c0a0..0000000
--- a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <gui/TraceUtils.h>
-
-#include <scheduler/FrameTargeter.h>
-#include <scheduler/IVsyncSource.h>
-
-namespace android::scheduler {
-
-TimePoint FrameTarget::pastVsyncTime(Period vsyncPeriod) const {
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const int shift = static_cast<int>(targetsVsyncsAhead<2>(vsyncPeriod));
-    return mExpectedPresentTime - Period::fromNs(vsyncPeriod.ns() << shift);
-}
-
-const FenceTimePtr& FrameTarget::presentFenceForPastVsync(Period vsyncPeriod) const {
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const size_t i = static_cast<size_t>(targetsVsyncsAhead<2>(vsyncPeriod));
-    return mPresentFences[i].fenceTime;
-}
-
-bool FrameTarget::wouldPresentEarly(Period vsyncPeriod) const {
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    if (targetsVsyncsAhead<3>(vsyncPeriod)) {
-        return true;
-    }
-
-    const auto fence = presentFenceForPastVsync(vsyncPeriod);
-    return fence->isValid() && fence->getSignalTime() != Fence::SIGNAL_TIME_PENDING;
-}
-
-void FrameTargeter::beginFrame(const BeginFrameArgs& args, const IVsyncSource& vsyncSource) {
-    return beginFrame(args, vsyncSource, &FrameTargeter::isFencePending);
-}
-
-void FrameTargeter::beginFrame(const BeginFrameArgs& args, const IVsyncSource& vsyncSource,
-                               IsFencePendingFuncPtr isFencePendingFuncPtr) {
-    mVsyncId = args.vsyncId;
-    mFrameBeginTime = args.frameBeginTime;
-
-    // The `expectedVsyncTime`, which was predicted when this frame was scheduled, is normally in
-    // the future relative to `frameBeginTime`, but may not be for delayed frames. Adjust
-    // `mExpectedPresentTime` accordingly, but not `mScheduledPresentTime`.
-    const TimePoint lastScheduledPresentTime = mScheduledPresentTime;
-    mScheduledPresentTime = args.expectedVsyncTime;
-
-    const Period vsyncPeriod = vsyncSource.period();
-
-    // Calculate the expected present time once and use the cached value throughout this frame to
-    // make sure all layers are seeing this same value.
-    if (args.expectedVsyncTime >= args.frameBeginTime) {
-        mExpectedPresentTime = args.expectedVsyncTime;
-    } else {
-        mExpectedPresentTime = vsyncSource.vsyncDeadlineAfter(args.frameBeginTime);
-        if (args.sfWorkDuration > vsyncPeriod) {
-            // Inflate the expected present time if we're targeting the next VSYNC.
-            mExpectedPresentTime += vsyncPeriod;
-        }
-    }
-
-    ATRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, ftl::to_underlying(args.vsyncId),
-                  ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
-                  mExpectedPresentTime == args.expectedVsyncTime ? "" : " (adjusted)");
-
-    const FenceTimePtr& pastPresentFence = presentFenceForPastVsync(vsyncPeriod);
-
-    // In cases where the present fence is about to fire, give it a small grace period instead of
-    // giving up on the frame.
-    //
-    // TODO(b/280667110): The grace period should depend on `sfWorkDuration` and `vsyncPeriod` being
-    // approximately equal, not whether backpressure propagation is enabled.
-    const int graceTimeForPresentFenceMs = static_cast<int>(
-            mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu));
-
-    // Pending frames may trigger backpressure propagation.
-    const auto& isFencePending = *isFencePendingFuncPtr;
-    mFramePending = pastPresentFence != FenceTime::NO_FENCE &&
-            isFencePending(pastPresentFence, graceTimeForPresentFenceMs);
-
-    // A frame is missed if the prior frame is still pending. If no longer pending, then we still
-    // count the frame as missed if the predicted present time was further in the past than when the
-    // fence actually fired. Add some slop to correct for drift. This should generally be smaller
-    // than a typical frame duration, but should not be so small that it reports reasonable drift as
-    // a missed frame.
-    mFrameMissed = mFramePending || [&] {
-        const nsecs_t pastPresentTime = pastPresentFence->getSignalTime();
-        if (pastPresentTime < 0) return false;
-        const nsecs_t frameMissedSlop = vsyncPeriod.ns() / 2;
-        return lastScheduledPresentTime.ns() < pastPresentTime - frameMissedSlop;
-    }();
-
-    mHwcFrameMissed = mFrameMissed && mCompositionCoverage.test(CompositionCoverage::Hwc);
-    mGpuFrameMissed = mFrameMissed && mCompositionCoverage.test(CompositionCoverage::Gpu);
-
-    if (mFrameMissed) mFrameMissedCount++;
-    if (mHwcFrameMissed) mHwcFrameMissedCount++;
-    if (mGpuFrameMissed) mGpuFrameMissedCount++;
-}
-
-void FrameTargeter::endFrame(const CompositeResult& result) {
-    mCompositionCoverage = result.compositionCoverage;
-}
-
-FenceTimePtr FrameTargeter::setPresentFence(sp<Fence> presentFence) {
-    auto presentFenceTime = std::make_shared<FenceTime>(presentFence);
-    return setPresentFence(std::move(presentFence), std::move(presentFenceTime));
-}
-
-FenceTimePtr FrameTargeter::setPresentFence(sp<Fence> presentFence, FenceTimePtr presentFenceTime) {
-    mPresentFences[1] = mPresentFences[0];
-    mPresentFences[0] = {std::move(presentFence), presentFenceTime};
-    return presentFenceTime;
-}
-
-void FrameTargeter::dump(utils::Dumper& dumper) const {
-    using namespace std::string_view_literals;
-
-    utils::Dumper::Section section(dumper, "Frame Targeting"sv);
-
-    dumper.dump("frameMissedCount"sv, mFrameMissedCount);
-    dumper.dump("hwcFrameMissedCount"sv, mHwcFrameMissedCount);
-    dumper.dump("gpuFrameMissedCount"sv, mGpuFrameMissedCount);
-}
-
-bool FrameTargeter::isFencePending(const FenceTimePtr& fence, int graceTimeMs) {
-    ATRACE_CALL();
-    const status_t status = fence->wait(graceTimeMs);
-
-    // This is the same as Fence::Status::Unsignaled, but it saves a call to getStatus,
-    // which calls wait(0) again internally.
-    return status == -ETIME;
-}
-
-} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
deleted file mode 100644
index 908f214..0000000
--- a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <ftl/optional.h>
-#include <gtest/gtest.h>
-
-#include <scheduler/Fps.h>
-#include <scheduler/FrameTargeter.h>
-#include <scheduler/IVsyncSource.h>
-
-using namespace std::chrono_literals;
-
-namespace android::scheduler {
-namespace {
-
-struct VsyncSource final : IVsyncSource {
-    VsyncSource(Period period, TimePoint deadline) : vsyncPeriod(period), vsyncDeadline(deadline) {}
-
-    const Period vsyncPeriod;
-    const TimePoint vsyncDeadline;
-
-    Period period() const override { return vsyncPeriod; }
-    TimePoint vsyncDeadlineAfter(TimePoint) const override { return vsyncDeadline; }
-};
-
-} // namespace
-
-class FrameTargeterTest : public testing::Test {
-public:
-    const auto& target() const { return mTargeter.target(); }
-
-    struct Frame {
-        Frame(FrameTargeterTest* testPtr, VsyncId vsyncId, TimePoint& frameBeginTime,
-              Duration frameDuration, Fps refreshRate,
-              FrameTargeter::IsFencePendingFuncPtr isFencePendingFuncPtr = Frame::fenceSignaled,
-              const ftl::Optional<VsyncSource>& vsyncSourceOpt = std::nullopt)
-              : testPtr(testPtr), frameBeginTime(frameBeginTime), period(refreshRate.getPeriod()) {
-            const FrameTargeter::BeginFrameArgs args{.frameBeginTime = frameBeginTime,
-                                                     .vsyncId = vsyncId,
-                                                     .expectedVsyncTime =
-                                                             frameBeginTime + frameDuration,
-                                                     .sfWorkDuration = 10ms};
-
-            testPtr->mTargeter.beginFrame(args,
-                                          vsyncSourceOpt
-                                                  .or_else([&] {
-                                                      return std::make_optional(
-                                                              VsyncSource(period,
-                                                                          args.expectedVsyncTime));
-                                                  })
-                                                  .value(),
-                                          isFencePendingFuncPtr);
-        }
-
-        FenceTimePtr end(CompositionCoverage coverage = CompositionCoverage::Hwc) {
-            if (ended) return nullptr;
-            ended = true;
-
-            auto [fence, fenceTime] = testPtr->mFenceMap.makePendingFenceForTest();
-            testPtr->mTargeter.setPresentFence(std::move(fence), fenceTime);
-
-            testPtr->mTargeter.endFrame({.compositionCoverage = coverage});
-            return fenceTime;
-        }
-
-        ~Frame() {
-            end();
-            frameBeginTime += period;
-        }
-
-        static bool fencePending(const FenceTimePtr&, int) { return true; }
-        static bool fenceSignaled(const FenceTimePtr&, int) { return false; }
-
-        FrameTargeterTest* const testPtr;
-
-        TimePoint& frameBeginTime;
-        const Period period;
-
-        bool ended = false;
-    };
-
-private:
-    FenceToFenceTimeMap mFenceMap;
-
-    static constexpr bool kBackpressureGpuComposition = true;
-    FrameTargeter mTargeter{kBackpressureGpuComposition};
-};
-
-TEST_F(FrameTargeterTest, targetsFrames) {
-    VsyncId vsyncId{42};
-    {
-        TimePoint frameBeginTime(989ms);
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, 60_Hz);
-
-        EXPECT_EQ(target().vsyncId(), VsyncId{42});
-        EXPECT_EQ(target().frameBeginTime(), TimePoint(989ms));
-        EXPECT_EQ(target().expectedPresentTime(), TimePoint(999ms));
-        EXPECT_EQ(target().expectedFrameDuration(), 10ms);
-    }
-    {
-        TimePoint frameBeginTime(1100ms);
-        const Frame frame(this, vsyncId++, frameBeginTime, 11ms, 60_Hz);
-
-        EXPECT_EQ(target().vsyncId(), VsyncId{43});
-        EXPECT_EQ(target().frameBeginTime(), TimePoint(1100ms));
-        EXPECT_EQ(target().expectedPresentTime(), TimePoint(1111ms));
-        EXPECT_EQ(target().expectedFrameDuration(), 11ms);
-    }
-}
-
-TEST_F(FrameTargeterTest, inflatesExpectedPresentTime) {
-    // Negative such that `expectedVsyncTime` is in the past.
-    constexpr Duration kFrameDuration = -3ms;
-    TimePoint frameBeginTime(777ms);
-
-    constexpr Fps kRefreshRate = 120_Hz;
-    const VsyncSource vsyncSource(kRefreshRate.getPeriod(), frameBeginTime + 5ms);
-    const Frame frame(this, VsyncId{123}, frameBeginTime, kFrameDuration, kRefreshRate,
-                      Frame::fenceSignaled, vsyncSource);
-
-    EXPECT_EQ(target().expectedPresentTime(), vsyncSource.vsyncDeadline + vsyncSource.vsyncPeriod);
-}
-
-TEST_F(FrameTargeterTest, recallsPastVsync) {
-    VsyncId vsyncId{111};
-    TimePoint frameBeginTime(1000ms);
-    constexpr Fps kRefreshRate = 60_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 13ms;
-
-    for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), fence);
-    }
-}
-
-TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAhead) {
-    VsyncId vsyncId{222};
-    TimePoint frameBeginTime(2000ms);
-    constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 10ms;
-
-    FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
-    for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), previousFence);
-
-        previousFence = fence;
-    }
-}
-
-TEST_F(FrameTargeterTest, doesNotDetectEarlyPresentIfNoFence) {
-    constexpr Period kPeriod = (60_Hz).getPeriod();
-    EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), FenceTime::NO_FENCE);
-    EXPECT_FALSE(target().wouldPresentEarly(kPeriod));
-}
-
-TEST_F(FrameTargeterTest, detectsEarlyPresent) {
-    VsyncId vsyncId{333};
-    TimePoint frameBeginTime(3000ms);
-    constexpr Fps kRefreshRate = 60_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-
-    // The target is not early while past present fences are pending.
-    for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().wouldPresentEarly(kPeriod));
-    }
-
-    // The target is early if the past present fence was signaled.
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
-
-    EXPECT_TRUE(target().wouldPresentEarly(kPeriod));
-}
-
-TEST_F(FrameTargeterTest, detectsEarlyPresentTwoVsyncsAhead) {
-    VsyncId vsyncId{444};
-    TimePoint frameBeginTime(4000ms);
-    constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-
-    // The target is not early while past present fences are pending.
-    for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().wouldPresentEarly(kPeriod));
-    }
-
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
-
-    // The target is two VSYNCs ahead, so the past present fence is still pending.
-    EXPECT_FALSE(target().wouldPresentEarly(kPeriod));
-
-    { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate); }
-
-    // The target is early if the past present fence was signaled.
-    EXPECT_TRUE(target().wouldPresentEarly(kPeriod));
-}
-
-TEST_F(FrameTargeterTest, detectsEarlyPresentThreeVsyncsAhead) {
-    TimePoint frameBeginTime(5000ms);
-    constexpr Fps kRefreshRate = 144_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-
-    const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate);
-
-    // The target is more than two VSYNCs ahead, but present fences are not tracked that far back.
-    EXPECT_TRUE(target().wouldPresentEarly(kPeriod));
-}
-
-TEST_F(FrameTargeterTest, detectsMissedFrames) {
-    VsyncId vsyncId{555};
-    TimePoint frameBeginTime(5000ms);
-    constexpr Fps kRefreshRate = 60_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-
-    EXPECT_FALSE(target().isFramePending());
-    EXPECT_FALSE(target().didMissFrame());
-    EXPECT_FALSE(target().didMissHwcFrame());
-
-    {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().isFramePending());
-
-        // The frame did not miss if the past present fence is invalid.
-        EXPECT_FALSE(target().didMissFrame());
-        EXPECT_FALSE(target().didMissHwcFrame());
-    }
-    {
-        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, Frame::fencePending);
-        EXPECT_TRUE(target().isFramePending());
-
-        // The frame missed if the past present fence is pending.
-        EXPECT_TRUE(target().didMissFrame());
-        EXPECT_TRUE(target().didMissHwcFrame());
-
-        frame.end(CompositionCoverage::Gpu);
-    }
-    {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, Frame::fencePending);
-        EXPECT_TRUE(target().isFramePending());
-
-        // The GPU frame missed if the past present fence is pending.
-        EXPECT_TRUE(target().didMissFrame());
-        EXPECT_FALSE(target().didMissHwcFrame());
-    }
-    {
-        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().isFramePending());
-
-        const auto fence = frame.end();
-        const auto expectedPresentTime = target().expectedPresentTime();
-        fence->signalForTest(expectedPresentTime.ns() + kPeriod.ns() / 2 + 1);
-    }
-    {
-        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().isFramePending());
-
-        const auto fence = frame.end();
-        const auto expectedPresentTime = target().expectedPresentTime();
-        fence->signalForTest(expectedPresentTime.ns() + kPeriod.ns() / 2);
-
-        // The frame missed if the past present fence was signaled but not within slop.
-        EXPECT_TRUE(target().didMissFrame());
-        EXPECT_TRUE(target().didMissHwcFrame());
-    }
-    {
-        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate);
-        EXPECT_FALSE(target().isFramePending());
-
-        // The frame did not miss if the past present fence was signaled within slop.
-        EXPECT_FALSE(target().didMissFrame());
-        EXPECT_FALSE(target().didMissHwcFrame());
-    }
-}
-
-} // namespace android::scheduler
diff --git a/services/surfaceflinger/Scheduler/tests/PresentLatencyTrackerTest.cpp b/services/surfaceflinger/Scheduler/tests/PresentLatencyTrackerTest.cpp
index df2ea83..8952ca9 100644
--- a/services/surfaceflinger/Scheduler/tests/PresentLatencyTrackerTest.cpp
+++ b/services/surfaceflinger/Scheduler/tests/PresentLatencyTrackerTest.cpp
@@ -23,6 +23,16 @@
 #include <ui/FenceTime.h>
 
 namespace android::scheduler {
+namespace {
+
+using FencePair = std::pair<sp<Fence>, std::shared_ptr<FenceTime>>;
+
+FencePair makePendingFence(FenceToFenceTimeMap& fenceMap) {
+    const auto fence = sp<Fence>::make();
+    return {fence, fenceMap.createFenceTimeForTest(fence)};
+}
+
+} // namespace
 
 TEST(PresentLatencyTrackerTest, skipsInvalidFences) {
     PresentLatencyTracker tracker;
@@ -33,7 +43,7 @@
     EXPECT_EQ(tracker.trackPendingFrame(kCompositeTime, FenceTime::NO_FENCE), Duration::zero());
 
     FenceToFenceTimeMap fenceMap;
-    const auto [fence, fenceTime] = fenceMap.makePendingFenceForTest();
+    const auto [fence, fenceTime] = makePendingFence(fenceMap);
     EXPECT_EQ(tracker.trackPendingFrame(kCompositeTime, fenceTime), Duration::zero());
 
     fenceTime->signalForTest(9999);
@@ -46,9 +56,8 @@
     PresentLatencyTracker tracker;
 
     FenceToFenceTimeMap fenceMap;
-    std::array<FenceToFenceTimeMap::FencePair, PresentLatencyTracker::kMaxPendingFrames> fences;
-    std::generate(fences.begin(), fences.end(),
-                  [&fenceMap] { return fenceMap.makePendingFenceForTest(); });
+    std::array<FencePair, PresentLatencyTracker::kMaxPendingFrames> fences;
+    std::generate(fences.begin(), fences.end(), [&fenceMap] { return makePendingFence(fenceMap); });
 
     // The present latency is 0 if all fences are pending.
     const TimePoint kCompositeTime = TimePoint::fromNs(1234);
@@ -62,7 +71,7 @@
         fences[i].second->signalForTest(kCompositeTime.ns() + static_cast<nsecs_t>(i));
     }
 
-    const auto fence = fenceMap.makePendingFenceForTest();
+    const auto fence = makePendingFence(fenceMap);
 
     // ...then the present latency is measured using the latest frame.
     constexpr Duration kPresentLatency = Duration::fromNs(static_cast<nsecs_t>(kPresentCount) - 1);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 06d6ef0..736b752 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -77,7 +77,6 @@
 #include <processgroup/processgroup.h>
 #include <renderengine/RenderEngine.h>
 #include <renderengine/impl/ExternalTexture.h>
-#include <scheduler/FrameTargeter.h>
 #include <sys/types.h>
 #include <ui/ColorSpace.h>
 #include <ui/DataspaceUtils.h>
@@ -2140,6 +2139,44 @@
     }
 }
 
+bool SurfaceFlinger::wouldPresentEarly(TimePoint frameTime, Period vsyncPeriod) const {
+    const bool isThreeVsyncsAhead = mExpectedPresentTime - frameTime > 2 * vsyncPeriod;
+    return isThreeVsyncsAhead ||
+            getPreviousPresentFence(frameTime, vsyncPeriod)->getSignalTime() !=
+            Fence::SIGNAL_TIME_PENDING;
+}
+
+auto SurfaceFlinger::getPreviousPresentFence(TimePoint frameTime, Period vsyncPeriod) const
+        -> const FenceTimePtr& {
+    const bool isTwoVsyncsAhead = mExpectedPresentTime - frameTime > vsyncPeriod;
+    const size_t i = static_cast<size_t>(isTwoVsyncsAhead);
+    return mPreviousPresentFences[i].fenceTime;
+}
+
+bool SurfaceFlinger::isFencePending(const FenceTimePtr& fence, int graceTimeMs) {
+    ATRACE_CALL();
+    if (fence == FenceTime::NO_FENCE) {
+        return false;
+    }
+
+    const status_t status = fence->wait(graceTimeMs);
+    // This is the same as Fence::Status::Unsignaled, but it saves a getStatus() call,
+    // which calls wait(0) again internally
+    return status == -ETIME;
+}
+
+TimePoint SurfaceFlinger::calculateExpectedPresentTime(TimePoint frameTime) const {
+    const auto& schedule = mScheduler->getVsyncSchedule();
+
+    const TimePoint vsyncDeadline = schedule->vsyncDeadlineAfter(frameTime);
+    if (mScheduler->vsyncModulator().getVsyncConfig().sfOffset > 0) {
+        return vsyncDeadline;
+    }
+
+    // Inflate the expected present time if we're targeting the next vsync.
+    return vsyncDeadline + schedule->period();
+}
+
 void SurfaceFlinger::configure() FTL_FAKE_GUARD(kMainThreadContext) {
     Mutex::Autolock lock(mStateLock);
     if (configureLocked()) {
@@ -2313,15 +2350,75 @@
     return mustComposite;
 }
 
-bool SurfaceFlinger::commit(const scheduler::FrameTarget& pacesetterFrameTarget)
+bool SurfaceFlinger::commit(TimePoint frameTime, VsyncId vsyncId, TimePoint expectedVsyncTime)
         FTL_FAKE_GUARD(kMainThreadContext) {
-    const VsyncId vsyncId = pacesetterFrameTarget.vsyncId();
-    ATRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
+    // The expectedVsyncTime, which was predicted when this frame was scheduled, is normally in the
+    // future relative to frameTime, but may not be for delayed frames. Adjust mExpectedPresentTime
+    // accordingly, but not mScheduledPresentTime.
+    const TimePoint lastScheduledPresentTime = mScheduledPresentTime;
+    mScheduledPresentTime = expectedVsyncTime;
 
-    if (pacesetterFrameTarget.didMissFrame()) {
+    // Calculate the expected present time once and use the cached value throughout this frame to
+    // make sure all layers are seeing this same value.
+    mExpectedPresentTime = expectedVsyncTime >= frameTime ? expectedVsyncTime
+                                                          : calculateExpectedPresentTime(frameTime);
+
+    ATRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, ftl::to_underlying(vsyncId),
+                  ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
+                  mExpectedPresentTime == expectedVsyncTime ? "" : " (adjusted)");
+
+    const Period vsyncPeriod = mScheduler->getVsyncSchedule()->period();
+    const FenceTimePtr& previousPresentFence = getPreviousPresentFence(frameTime, vsyncPeriod);
+
+    // When backpressure propagation is enabled, we want to give a small grace period of 1ms
+    // for the present fence to fire instead of just giving up on this frame to handle cases
+    // where present fence is just about to get signaled.
+    const int graceTimeForPresentFenceMs = static_cast<int>(
+            mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu));
+
+    // Pending frames may trigger backpressure propagation.
+    const TracedOrdinal<bool> framePending = {"PrevFramePending",
+                                              isFencePending(previousPresentFence,
+                                                             graceTimeForPresentFenceMs)};
+
+    // Frame missed counts for metrics tracking.
+    // A frame is missed if the prior frame is still pending. If no longer pending,
+    // then we still count the frame as missed if the predicted present time
+    // was further in the past than when the fence actually fired.
+
+    // Add some slop to correct for drift. This should generally be
+    // smaller than a typical frame duration, but should not be so small
+    // that it reports reasonable drift as a missed frame.
+    const nsecs_t frameMissedSlop = vsyncPeriod.ns() / 2;
+    const nsecs_t previousPresentTime = previousPresentFence->getSignalTime();
+    const TracedOrdinal<bool> frameMissed = {"PrevFrameMissed",
+                                             framePending ||
+                                                     (previousPresentTime >= 0 &&
+                                                      (lastScheduledPresentTime.ns() <
+                                                       previousPresentTime - frameMissedSlop))};
+    const TracedOrdinal<bool> hwcFrameMissed = {"PrevHwcFrameMissed",
+                                                frameMissed &&
+                                                        mCompositionCoverage.test(
+                                                                CompositionCoverage::Hwc)};
+
+    const TracedOrdinal<bool> gpuFrameMissed = {"PrevGpuFrameMissed",
+                                                frameMissed &&
+                                                        mCompositionCoverage.test(
+                                                                CompositionCoverage::Gpu)};
+
+    if (frameMissed) {
+        mFrameMissedCount++;
         mTimeStats->incrementMissedFrames();
     }
 
+    if (hwcFrameMissed) {
+        mHwcFrameMissedCount++;
+    }
+
+    if (gpuFrameMissed) {
+        mGpuFrameMissedCount++;
+    }
+
     if (mTracingEnabledChanged) {
         mLayerTracingEnabled = mLayerTracing.isEnabled();
         mTracingEnabledChanged = false;
@@ -2330,7 +2427,7 @@
     // If we are in the middle of a mode change and the fence hasn't
     // fired yet just wait for the next commit.
     if (mSetActiveModePending) {
-        if (pacesetterFrameTarget.isFramePending()) {
+        if (framePending) {
             mScheduler->scheduleFrame();
             return false;
         }
@@ -2344,29 +2441,26 @@
         }
     }
 
-    if (pacesetterFrameTarget.isFramePending()) {
-        if (mBackpressureGpuComposition || pacesetterFrameTarget.didMissHwcFrame()) {
+    if (framePending) {
+        if (mBackpressureGpuComposition || (hwcFrameMissed && !gpuFrameMissed)) {
             scheduleCommit(FrameHint::kNone);
             return false;
         }
     }
 
-    const Period vsyncPeriod = mScheduler->getVsyncSchedule()->period();
-
     // Save this once per commit + composite to ensure consistency
     // TODO (b/240619471): consider removing active display check once AOD is fixed
     const auto activeDisplay = FTL_FAKE_GUARD(mStateLock, getDisplayDeviceLocked(mActiveDisplayId));
     mPowerHintSessionEnabled = mPowerAdvisor->usePowerHintSession() && activeDisplay &&
             activeDisplay->getPowerMode() == hal::PowerMode::ON;
     if (mPowerHintSessionEnabled) {
-        mPowerAdvisor->setCommitStart(pacesetterFrameTarget.frameBeginTime());
-        mPowerAdvisor->setExpectedPresentTime(pacesetterFrameTarget.expectedPresentTime());
+        mPowerAdvisor->setCommitStart(frameTime);
+        mPowerAdvisor->setExpectedPresentTime(mExpectedPresentTime);
 
         // Frame delay is how long we should have minus how long we actually have.
         const Duration idealSfWorkDuration =
                 mScheduler->vsyncModulator().getVsyncConfig().sfWorkDuration;
-        const Duration frameDelay =
-                idealSfWorkDuration - pacesetterFrameTarget.expectedFrameDuration();
+        const Duration frameDelay = idealSfWorkDuration - (mExpectedPresentTime - frameTime);
 
         mPowerAdvisor->setFrameDelay(frameDelay);
         mPowerAdvisor->setTotalFrameTargetWorkDuration(idealSfWorkDuration);
@@ -2383,8 +2477,7 @@
     // Composite if transactions were committed, or if requested by HWC.
     bool mustComposite = mMustComposite.exchange(false);
     {
-        mFrameTimeline->setSfWakeUp(ftl::to_underlying(vsyncId),
-                                    pacesetterFrameTarget.frameBeginTime().ns(),
+        mFrameTimeline->setSfWakeUp(ftl::to_underlying(vsyncId), frameTime.ns(),
                                     Fps::fromPeriodNsecs(vsyncPeriod.ns()));
 
         const bool flushTransactions = clearTransactionFlags(eTransactionFlushNeeded);
@@ -2392,11 +2485,10 @@
         if (flushTransactions) {
             updates = flushLifecycleUpdates();
             if (mTransactionTracing) {
-                mTransactionTracing
-                        ->addCommittedTransactions(ftl::to_underlying(vsyncId),
-                                                   pacesetterFrameTarget.frameBeginTime().ns(),
-                                                   updates, mFrontEndDisplayInfos,
-                                                   mFrontEndDisplayInfosChanged);
+                mTransactionTracing->addCommittedTransactions(ftl::to_underlying(vsyncId),
+                                                              frameTime.ns(), updates,
+                                                              mFrontEndDisplayInfos,
+                                                              mFrontEndDisplayInfosChanged);
             }
         }
         bool transactionsAreEmpty;
@@ -2439,7 +2531,7 @@
 
     if (mLayerTracingEnabled && !mLayerTracing.flagIsSet(LayerTracing::TRACE_COMPOSITION)) {
         // This will block and tracing should only be enabled for debugging.
-        addToLayerTracing(mVisibleRegionsDirty, pacesetterFrameTarget.frameBeginTime(), vsyncId);
+        addToLayerTracing(mVisibleRegionsDirty, frameTime, vsyncId);
     }
     mLastCommittedVsyncId = vsyncId;
 
@@ -2448,11 +2540,8 @@
     return mustComposite && CC_LIKELY(mBootStage != BootStage::BOOTLOADER);
 }
 
-CompositeResult SurfaceFlinger::composite(scheduler::FrameTargeter& pacesetterFrameTargeter)
+void SurfaceFlinger::composite(TimePoint frameTime, VsyncId vsyncId)
         FTL_FAKE_GUARD(kMainThreadContext) {
-    const scheduler::FrameTarget& pacesetterFrameTarget = pacesetterFrameTargeter.target();
-
-    const VsyncId vsyncId = pacesetterFrameTarget.vsyncId();
     ATRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
 
     compositionengine::CompositionRefreshArgs refreshArgs;
@@ -2460,18 +2549,17 @@
     refreshArgs.outputs.reserve(displays.size());
     std::vector<DisplayId> displayIds;
     for (const auto& [_, display] : displays) {
-        displayIds.push_back(display->getId());
-        display->tracePowerMode();
-
+        bool dropFrame = false;
         if (display->isVirtual()) {
-            const Fps refreshRate = display->getAdjustedRefreshRate();
-            if (refreshRate.isValid() &&
-                !mScheduler->isVsyncInPhase(pacesetterFrameTarget.frameBeginTime(), refreshRate)) {
-                continue;
-            }
+            Fps refreshRate = display->getAdjustedRefreshRate();
+            using fps_approx_ops::operator>;
+            dropFrame = (refreshRate > 0_Hz) && !mScheduler->isVsyncInPhase(frameTime, refreshRate);
         }
-
-        refreshArgs.outputs.push_back(display->getCompositionDisplay());
+        if (!dropFrame) {
+            refreshArgs.outputs.push_back(display->getCompositionDisplay());
+        }
+        display->tracePowerMode();
+        displayIds.push_back(display->getId());
     }
     mPowerAdvisor->setDisplays(displayIds);
 
@@ -2531,15 +2619,15 @@
 
     if (!getHwComposer().getComposer()->isSupported(
                 Hwc2::Composer::OptionalFeature::ExpectedPresentTime) &&
-        pacesetterFrameTarget.wouldPresentEarly(vsyncPeriod)) {
+        wouldPresentEarly(frameTime, vsyncPeriod)) {
+        const auto prevVsyncTime = mExpectedPresentTime - vsyncPeriod;
         const auto hwcMinWorkDuration = mVsyncConfiguration->getCurrentConfigs().hwcMinWorkDuration;
 
-        refreshArgs.earliestPresentTime =
-                pacesetterFrameTarget.pastVsyncTime(vsyncPeriod) - hwcMinWorkDuration;
+        refreshArgs.earliestPresentTime = prevVsyncTime - hwcMinWorkDuration;
     }
 
     refreshArgs.scheduledFrameTime = mScheduler->getScheduledFrameTime();
-    refreshArgs.expectedPresentTime = pacesetterFrameTarget.expectedPresentTime().ns();
+    refreshArgs.expectedPresentTime = mExpectedPresentTime.ns();
     refreshArgs.hasTrustedPresentationListener = mNumTrustedPresentationListeners > 0;
 
     // Store the present time just before calling to the composition engine so we could notify
@@ -2565,12 +2653,13 @@
         }
     }
 
-    mTimeStats->recordFrameDuration(pacesetterFrameTarget.frameBeginTime().ns(), systemTime());
+    mTimeStats->recordFrameDuration(frameTime.ns(), systemTime());
 
     // Send a power hint hint after presentation is finished
     if (mPowerHintSessionEnabled) {
         const nsecs_t pastPresentTime =
-                pacesetterFrameTarget.presentFenceForPastVsync(vsyncPeriod)->getSignalTime();
+                getPreviousPresentFence(frameTime, vsyncPeriod)->getSignalTime();
+
         mPowerAdvisor->setSfPresentTiming(TimePoint::fromNs(pastPresentTime), TimePoint::now());
         mPowerAdvisor->reportActualWorkDuration();
     }
@@ -2579,7 +2668,7 @@
         scheduleComposite(FrameHint::kNone);
     }
 
-    postComposition(pacesetterFrameTargeter, presentTime);
+    postComposition(presentTime);
 
     const bool hadGpuComposited = mCompositionCoverage.test(CompositionCoverage::Gpu);
     mCompositionCoverage.clear();
@@ -2622,7 +2711,7 @@
     mLayersWithQueuedFrames.clear();
     if (mLayerTracingEnabled && mLayerTracing.flagIsSet(LayerTracing::TRACE_COMPOSITION)) {
         // This will block and should only be used for debugging.
-        addToLayerTracing(mVisibleRegionsDirty, pacesetterFrameTarget.frameBeginTime(), vsyncId);
+        addToLayerTracing(mVisibleRegionsDirty, frameTime, vsyncId);
     }
 
     if (mVisibleRegionsDirty) mHdrLayerInfoChanged = true;
@@ -2635,8 +2724,6 @@
     if (mPowerHintSessionEnabled) {
         mPowerAdvisor->setCompositeEnd(TimePoint::now());
     }
-
-    return {mCompositionCoverage};
 }
 
 void SurfaceFlinger::updateLayerGeometry() {
@@ -2720,8 +2807,7 @@
     return ui::ROTATION_0;
 }
 
-void SurfaceFlinger::postComposition(scheduler::FrameTargeter& pacesetterFrameTargeter,
-                                     nsecs_t presentStartTime) {
+void SurfaceFlinger::postComposition(nsecs_t callTime) {
     ATRACE_CALL();
     ALOGV(__func__);
 
@@ -2738,11 +2824,15 @@
         glCompositionDoneFenceTime = FenceTime::NO_FENCE;
     }
 
+    mPreviousPresentFences[1] = mPreviousPresentFences[0];
+
     auto presentFence = defaultDisplay
             ? getHwComposer().getPresentFence(defaultDisplay->getPhysicalId())
             : Fence::NO_FENCE;
 
-    auto presentFenceTime = pacesetterFrameTargeter.setPresentFence(presentFence);
+    auto presentFenceTime = std::make_shared<FenceTime>(presentFence);
+    mPreviousPresentFences[0] = {presentFence, presentFenceTime};
+
     const TimePoint presentTime = TimePoint::now();
 
     // Set presentation information before calling Layer::releasePendingBuffer, such that jank
@@ -2925,7 +3015,7 @@
             if (!layer->hasTrustedPresentationListener()) {
                 return;
             }
-            const frontend::LayerSnapshot* snapshot = mLayerLifecycleManagerEnabled
+            const frontend::LayerSnapshot* snapshot = (mLayerLifecycleManagerEnabled)
                     ? mLayerSnapshotBuilder.getSnapshot(layer->sequence)
                     : layer->getLayerSnapshot();
             std::optional<const DisplayDevice*> displayOpt = std::nullopt;
@@ -2934,8 +3024,7 @@
             }
             const DisplayDevice* display = displayOpt.value_or(nullptr);
             layer->updateTrustedPresentationState(display, snapshot,
-                                                  nanoseconds_to_milliseconds(presentStartTime),
-                                                  false);
+                                                  nanoseconds_to_milliseconds(callTime), false);
         });
     }
 
@@ -3847,9 +3936,6 @@
     if (display->refreshRateSelector().kernelIdleTimerController()) {
         features |= Feature::kKernelIdleTimer;
     }
-    if (mBackpressureGpuComposition) {
-        features |= Feature::kBackpressureGpuComposition;
-    }
 
     auto modulatorPtr = sp<VsyncModulator>::make(mVsyncConfiguration->getCurrentConfigs());
 
@@ -4167,38 +4253,33 @@
 
 TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyTimelineCheck(
         const TransactionHandler::TransactionFlushState& flushState) {
-    const auto& transaction = *flushState.transaction;
-
-    const TimePoint desiredPresentTime = TimePoint::fromNs(transaction.desiredPresentTime);
-    const TimePoint expectedPresentTime = mScheduler->pacesetterFrameTarget().expectedPresentTime();
-
     using TransactionReadiness = TransactionHandler::TransactionReadiness;
-
+    const auto& transaction = *flushState.transaction;
+    TimePoint desiredPresentTime = TimePoint::fromNs(transaction.desiredPresentTime);
     // Do not present if the desiredPresentTime has not passed unless it is more than
     // one second in the future. We ignore timestamps more than 1 second in the future
     // for stability reasons.
-    if (!transaction.isAutoTimestamp && desiredPresentTime >= expectedPresentTime &&
-        desiredPresentTime < expectedPresentTime + 1s) {
+    if (!transaction.isAutoTimestamp && desiredPresentTime >= mExpectedPresentTime &&
+        desiredPresentTime < mExpectedPresentTime + 1s) {
         ATRACE_FORMAT("not current desiredPresentTime: %" PRId64 " expectedPresentTime: %" PRId64,
-                      desiredPresentTime, expectedPresentTime);
+                      desiredPresentTime, mExpectedPresentTime);
         return TransactionReadiness::NotReady;
     }
 
-    if (!mScheduler->isVsyncValid(expectedPresentTime, transaction.originUid)) {
-        ATRACE_FORMAT("!isVsyncValid expectedPresentTime: %" PRId64 " uid: %d", expectedPresentTime,
-                      transaction.originUid);
+    if (!mScheduler->isVsyncValid(mExpectedPresentTime, transaction.originUid)) {
+        ATRACE_FORMAT("!isVsyncValid expectedPresentTime: %" PRId64 " uid: %d",
+                      mExpectedPresentTime, transaction.originUid);
         return TransactionReadiness::NotReady;
     }
 
     // If the client didn't specify desiredPresentTime, use the vsyncId to determine the
     // expected present time of this transaction.
     if (transaction.isAutoTimestamp &&
-        frameIsEarly(expectedPresentTime, VsyncId{transaction.frameTimelineInfo.vsyncId})) {
+        frameIsEarly(mExpectedPresentTime, VsyncId{transaction.frameTimelineInfo.vsyncId})) {
         ATRACE_FORMAT("frameIsEarly vsyncId: %" PRId64 " expectedPresentTime: %" PRId64,
-                      transaction.frameTimelineInfo.vsyncId, expectedPresentTime);
+                      transaction.frameTimelineInfo.vsyncId, mExpectedPresentTime);
         return TransactionReadiness::NotReady;
     }
-
     return TransactionReadiness::Ready;
 }
 
@@ -5942,6 +6023,10 @@
     dumpVsync(result);
     result.append("\n");
 
+    StringAppendF(&result, "Total missed frame count: %u\n", mFrameMissedCount.load());
+    StringAppendF(&result, "HWC missed frame count: %u\n", mHwcFrameMissedCount.load());
+    StringAppendF(&result, "GPU missed frame count: %u\n\n", mGpuFrameMissedCount.load());
+
     /*
      * Dump the visible layer list
      */
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 5a6f22c..6b9ba8c 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -632,8 +632,8 @@
 
     // ICompositor overrides:
     void configure() override;
-    bool commit(const scheduler::FrameTarget&) override;
-    CompositeResult composite(scheduler::FrameTargeter&) override;
+    bool commit(TimePoint frameTime, VsyncId, TimePoint expectedVsyncTime) override;
+    void composite(TimePoint frameTime, VsyncId) override;
     void sample() override;
 
     // ISchedulerCallback overrides:
@@ -952,8 +952,7 @@
     /*
      * Compositing
      */
-    void postComposition(scheduler::FrameTargeter&, nsecs_t presentStartTime)
-            REQUIRES(kMainThreadContext);
+    void postComposition(nsecs_t callTime) REQUIRES(kMainThreadContext);
 
     /*
      * Display management
@@ -994,6 +993,20 @@
      */
     nsecs_t getVsyncPeriodFromHWC() const REQUIRES(mStateLock);
 
+    using FenceTimePtr = std::shared_ptr<FenceTime>;
+
+    bool wouldPresentEarly(TimePoint frameTime, Period) const REQUIRES(kMainThreadContext);
+
+    const FenceTimePtr& getPreviousPresentFence(TimePoint frameTime, Period) const
+            REQUIRES(kMainThreadContext);
+
+    // Blocks the thread waiting for up to graceTimeMs in case the fence is about to signal.
+    static bool isFencePending(const FenceTimePtr&, int graceTimeMs);
+
+    // Calculates the expected present time for this frame. For negative offsets, performs a
+    // correction using the predicted vsync for the next frame instead.
+    TimePoint calculateExpectedPresentTime(TimePoint frameTime) const;
+
     /*
      * Display identification
      */
@@ -1242,6 +1255,9 @@
 
     // If blurs should be enabled on this device.
     bool mSupportsBlur = false;
+    std::atomic<uint32_t> mFrameMissedCount = 0;
+    std::atomic<uint32_t> mHwcFrameMissedCount = 0;
+    std::atomic<uint32_t> mGpuFrameMissedCount = 0;
 
     TransactionCallbackInvoker mTransactionCallbackInvoker;
 
@@ -1309,6 +1325,15 @@
     std::unique_ptr<scheduler::RefreshRateStats> mRefreshRateStats;
     scheduler::PresentLatencyTracker mPresentLatencyTracker GUARDED_BY(kMainThreadContext);
 
+    struct FenceWithFenceTime {
+        sp<Fence> fence = Fence::NO_FENCE;
+        FenceTimePtr fenceTime = FenceTime::NO_FENCE;
+    };
+    std::array<FenceWithFenceTime, 2> mPreviousPresentFences;
+
+    TimePoint mScheduledPresentTime GUARDED_BY(kMainThreadContext);
+    TimePoint mExpectedPresentTime GUARDED_BY(kMainThreadContext);
+
     // below flags are set by main thread only
     bool mSetActiveModePending = false;
 
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index 42b3879..534a8f3 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -286,8 +286,8 @@
 private:
     // ICompositor overrides:
     void configure() override {}
-    bool commit(const scheduler::FrameTarget&) override { return false; }
-    CompositeResult composite(scheduler::FrameTargeter&) override { return {}; }
+    bool commit(TimePoint, VsyncId, TimePoint) override { return false; }
+    void composite(TimePoint, VsyncId) override {}
     void sample() override {}
 
     // MessageQueue overrides:
@@ -604,9 +604,7 @@
 
             mFlinger->commitTransactions();
             mFlinger->flushTransactionQueues(getFuzzedVsyncId(mFdp));
-
-            scheduler::FrameTargeter frameTargeter(mFdp.ConsumeBool());
-            mFlinger->postComposition(frameTargeter, mFdp.ConsumeIntegral<nsecs_t>());
+            mFlinger->postComposition(systemTime());
         }
 
         mFlinger->setTransactionFlags(mFdp.ConsumeIntegral<uint32_t>());
@@ -624,6 +622,8 @@
 
         mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mFdp.ConsumeIntegral<uid_t>());
 
+        mFlinger->calculateExpectedPresentTime({});
+
         mFlinger->enableHalVirtualDisplays(mFdp.ConsumeBool());
 
         fuzzDumpsysAndDebug(&mFdp);
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
index b1fd06f..f17d2e1 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
@@ -19,7 +19,6 @@
 #include <fuzzer/FuzzedDataProvider.h>
 #include <processgroup/sched_policy.h>
 
-#include <scheduler/IVsyncSource.h>
 #include <scheduler/PresentLatencyTracker.h>
 
 #include "Scheduler/OneShotTimer.h"
@@ -43,7 +42,6 @@
                                      (120_Hz).getPeriodNsecs()};
 
 constexpr auto kLayerVoteTypes = ftl::enum_range<scheduler::RefreshRateSelector::LayerVoteType>();
-constexpr auto kCompositionCoverage = ftl::enum_range<CompositionCoverage>();
 
 constexpr PowerMode kPowerModes[] = {PowerMode::ON, PowerMode::DOZE, PowerMode::OFF,
                                      PowerMode::DOZE_SUSPEND, PowerMode::ON_SUSPEND};
@@ -58,10 +56,6 @@
     component->dump(res);
 }
 
-inline sp<Fence> makeFakeFence() {
-    return sp<Fence>::make(memfd_create("fd", MFD_ALLOW_SEALING));
-}
-
 class SchedulerFuzzer {
 public:
     SchedulerFuzzer(const uint8_t* data, size_t size) : mFdp(data, size){};
@@ -71,7 +65,6 @@
     void fuzzRefreshRateSelection();
     void fuzzRefreshRateSelector();
     void fuzzPresentLatencyTracker();
-    void fuzzFrameTargeter();
     void fuzzVSyncModulator();
     void fuzzVSyncPredictor();
     void fuzzVSyncReactor();
@@ -263,13 +256,13 @@
     reactor.addHwVsyncTimestamp(0, std::nullopt, &periodFlushed);
     reactor.addHwVsyncTimestamp(mFdp.ConsumeIntegral<nsecs_t>() /*newPeriod*/, std::nullopt,
                                 &periodFlushed);
-
-    const auto fence = std::make_shared<FenceTime>(makeFakeFence());
+    sp<Fence> fence = sp<Fence>::make(memfd_create("fd", MFD_ALLOW_SEALING));
+    std::shared_ptr<FenceTime> ft = std::make_shared<FenceTime>(fence);
     vSyncTracker->addVsyncTimestamp(mFdp.ConsumeIntegral<nsecs_t>());
     FenceTime::Snapshot snap(mFdp.ConsumeIntegral<nsecs_t>());
-    fence->applyTrustedSnapshot(snap);
+    ft->applyTrustedSnapshot(snap);
     reactor.setIgnorePresentFences(mFdp.ConsumeBool());
-    reactor.addPresentFence(fence);
+    reactor.addPresentFence(ft);
     dump<scheduler::VSyncReactor>(&reactor, &mFdp);
 }
 
@@ -399,45 +392,14 @@
 
 void SchedulerFuzzer::fuzzPresentLatencyTracker() {
     scheduler::PresentLatencyTracker tracker;
-
-    int i = 5;
-    while (i-- > 0) {
-        tracker.trackPendingFrame(getFuzzedTimePoint(mFdp),
-                                  std::make_shared<FenceTime>(makeFakeFence()));
-    }
-}
-
-void SchedulerFuzzer::fuzzFrameTargeter() {
-    scheduler::FrameTargeter frameTargeter(mFdp.ConsumeBool());
-
-    const struct VsyncSource final : scheduler::IVsyncSource {
-        explicit VsyncSource(FuzzedDataProvider& fuzzer) : fuzzer(fuzzer) {}
-        FuzzedDataProvider& fuzzer;
-
-        Period period() const { return getFuzzedDuration(fuzzer); }
-        TimePoint vsyncDeadlineAfter(TimePoint) const { return getFuzzedTimePoint(fuzzer); }
-    } vsyncSource{mFdp};
-
-    int i = 10;
-    while (i-- > 0) {
-        frameTargeter.beginFrame({.frameBeginTime = getFuzzedTimePoint(mFdp),
-                                  .vsyncId = getFuzzedVsyncId(mFdp),
-                                  .expectedVsyncTime = getFuzzedTimePoint(mFdp),
-                                  .sfWorkDuration = getFuzzedDuration(mFdp)},
-                                 vsyncSource);
-
-        frameTargeter.setPresentFence(makeFakeFence());
-
-        frameTargeter.endFrame(
-                {.compositionCoverage = mFdp.PickValueInArray(kCompositionCoverage.values)});
-    }
+    tracker.trackPendingFrame(TimePoint::fromNs(mFdp.ConsumeIntegral<nsecs_t>()),
+                              FenceTime::NO_FENCE);
 }
 
 void SchedulerFuzzer::process() {
     fuzzRefreshRateSelection();
     fuzzRefreshRateSelector();
     fuzzPresentLatencyTracker();
-    fuzzFrameTargeter();
     fuzzVSyncModulator();
     fuzzVSyncPredictor();
     fuzzVSyncReactor();
diff --git a/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp b/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
index 359e2ab..91875cc 100644
--- a/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
+++ b/services/surfaceflinger/tests/unittests/MessageQueueTest.cpp
@@ -20,10 +20,9 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
-#include <scheduler/interface/ICompositor.h>
-
 #include "FrameTimeline.h"
 #include "Scheduler/MessageQueue.h"
+#include "SurfaceFlinger.h"
 #include "mock/MockVSyncDispatch.h"
 
 namespace android {
@@ -35,8 +34,8 @@
 
 struct NoOpCompositor final : ICompositor {
     void configure() override {}
-    bool commit(const scheduler::FrameTarget&) override { return false; }
-    CompositeResult composite(scheduler::FrameTargeter&) override { return {}; }
+    bool commit(TimePoint, VsyncId, TimePoint) override { return false; }
+    void composite(TimePoint, VsyncId) override {}
     void sample() override {}
 } gNoOpCompositor;
 
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index aac11c0..a30f7e0 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -173,8 +173,8 @@
 private:
     // ICompositor overrides:
     void configure() override {}
-    bool commit(const scheduler::FrameTarget&) override { return false; }
-    CompositeResult composite(scheduler::FrameTargeter&) override { return {}; }
+    bool commit(TimePoint, VsyncId, TimePoint) override { return false; }
+    void composite(TimePoint, VsyncId) override {}
     void sample() override {}
 };
 
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 833984f..945e488 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -20,11 +20,6 @@
 #include <chrono>
 #include <variant>
 
-#include <ftl/fake_guard.h>
-#include <ftl/match.h>
-#include <gui/ScreenCaptureResults.h>
-#include <ui/DynamicDisplayInfo.h>
-
 #include <compositionengine/Display.h>
 #include <compositionengine/LayerFECompositionState.h>
 #include <compositionengine/OutputLayer.h>
@@ -32,7 +27,11 @@
 #include <compositionengine/impl/Display.h>
 #include <compositionengine/impl/OutputLayerCompositionState.h>
 #include <compositionengine/mock/DisplaySurface.h>
+#include <ftl/fake_guard.h>
+#include <ftl/match.h>
+#include <gui/ScreenCaptureResults.h>
 
+#include <ui/DynamicDisplayInfo.h>
 #include "DisplayDevice.h"
 #include "FakeVsyncConfiguration.h"
 #include "FrameTracer/FrameTracer.h"
@@ -45,6 +44,7 @@
 #include "Scheduler/RefreshRateSelector.h"
 #include "StartPropertySetThread.h"
 #include "SurfaceFlinger.h"
+#include "SurfaceFlingerDefaultFactory.h"
 #include "TestableScheduler.h"
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/DisplayHardware/MockDisplayMode.h"
@@ -360,42 +360,25 @@
         commitTransactionsLocked(eDisplayTransactionNeeded);
     }
 
-    void commit(TimePoint frameTime, VsyncId vsyncId, TimePoint expectedVsyncTime,
-                bool composite = false) {
-        constexpr bool kBackpressureGpuComposition = true;
-        scheduler::FrameTargeter frameTargeter(kBackpressureGpuComposition);
-
-        frameTargeter.beginFrame({.frameBeginTime = frameTime,
-                                  .vsyncId = vsyncId,
-                                  .expectedVsyncTime = expectedVsyncTime,
-                                  .sfWorkDuration = 10ms},
-                                 *mScheduler->getVsyncSchedule());
-
-        mFlinger->commit(frameTargeter.target());
-
-        if (composite) {
-            mFlinger->composite(frameTargeter);
-        }
+    TimePoint commit(TimePoint frameTime, VsyncId vsyncId, TimePoint expectedVsyncTime) {
+        mFlinger->commit(frameTime, vsyncId, expectedVsyncTime);
+        return frameTime;
     }
 
-    void commit(TimePoint frameTime, VsyncId vsyncId, bool composite = false) {
-        return commit(frameTime, vsyncId, frameTime + Period(10ms), composite);
+    TimePoint commit(TimePoint frameTime, VsyncId vsyncId) {
+        return commit(frameTime, vsyncId, frameTime + Period(10ms));
     }
 
-    void commit(bool composite = false) {
+    TimePoint commit() {
         const TimePoint frameTime = scheduler::SchedulerClock::now();
-        commit(frameTime, kVsyncId, composite);
+        return commit(frameTime, kVsyncId);
     }
 
     void commitAndComposite(TimePoint frameTime, VsyncId vsyncId, TimePoint expectedVsyncTime) {
-        constexpr bool kComposite = true;
-        commit(frameTime, vsyncId, expectedVsyncTime, kComposite);
+        mFlinger->composite(commit(frameTime, vsyncId, expectedVsyncTime), vsyncId);
     }
 
-    void commitAndComposite() {
-        constexpr bool kComposite = true;
-        commit(kComposite);
-    }
+    void commitAndComposite() { mFlinger->composite(commit(), kVsyncId); }
 
     auto createDisplay(const String8& displayName, bool secure, float requestedRefreshRate = 0.0f) {
         return mFlinger->createDisplay(displayName, secure, requestedRefreshRate);