Revert "SF: pass a render rate to VsyncTracker instead of a divisor"

Revert submission 21422016

Reason for revert: DM P0 (b/269561042)

Reverted changes: /q/submissionid:21422016

Bug: 269561042
Change-Id: I118dd75ea379673d649d3c75960f18ef45b3749f
(cherry picked from commit 3d21d3afa1056efacf702b74449f9e2e7b5701f1)
Merged-In: I118dd75ea379673d649d3c75960f18ef45b3749f
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
index 2908834..47c2dee 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
@@ -54,7 +54,7 @@
     void resetModel() final {}
     bool needsMoreSamples() const final { return false; }
     bool isVSyncInPhase(nsecs_t, Fps) const final { return false; }
-    void setRenderRate(Fps) final {}
+    void setDivisor(unsigned) final {}
     void dump(std::string&) const final {}
 
 private:
@@ -92,7 +92,7 @@
     void resetModel() final {}
     bool needsMoreSamples() const final { return false; }
     bool isVSyncInPhase(nsecs_t, Fps) const final { return false; }
-    void setRenderRate(Fps) final {}
+    void setDivisor(unsigned) final {}
     void dump(std::string&) const final {}
 
 private:
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
index f143b49..14a2860 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
@@ -55,7 +55,7 @@
     MOCK_METHOD0(resetModel, void());
     MOCK_CONST_METHOD0(needsMoreSamples, bool());
     MOCK_CONST_METHOD2(isVSyncInPhase, bool(nsecs_t, Fps));
-    MOCK_METHOD(void, setRenderRate, (Fps), (override));
+    MOCK_METHOD(void, setDivisor, (unsigned), (override));
     MOCK_CONST_METHOD1(dump, void(std::string&));
 
     nsecs_t nextVSyncTime(nsecs_t timePoint) const {
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index db531bf..48d39cf 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -554,7 +554,7 @@
     EXPECT_THAT(intercept, IsCloseTo(expectedIntercept, mMaxRoundingError));
 }
 
-TEST_F(VSyncPredictorTest, setRenderRateIsRespected) {
+TEST_F(VSyncPredictorTest, setDivisorIsRespected) {
     auto last = mNow;
     for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
         EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(last + mPeriod));
@@ -563,7 +563,7 @@
         tracker.addVsyncTimestamp(mNow);
     }
 
-    tracker.setRenderRate(Fps::fromPeriodNsecs(3 * mPeriod));
+    tracker.setDivisor(3);
 
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(mNow + mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 100), Eq(mNow + mPeriod));
@@ -574,7 +574,7 @@
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 5100), Eq(mNow + 7 * mPeriod));
 }
 
-TEST_F(VSyncPredictorTest, setRenderRateOfDivisorIsInPhase) {
+TEST_F(VSyncPredictorTest, setDivisorOfDivosorIsInPhase) {
     auto last = mNow;
     for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
         EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(last + mPeriod));
@@ -583,44 +583,18 @@
         tracker.addVsyncTimestamp(mNow);
     }
 
-    const auto refreshRate = Fps::fromPeriodNsecs(mPeriod);
-
-    tracker.setRenderRate(refreshRate / 4);
+    tracker.setDivisor(4);
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(mNow + 3 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 3 * mPeriod), Eq(mNow + 7 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 7 * mPeriod), Eq(mNow + 11 * mPeriod));
 
-    tracker.setRenderRate(refreshRate / 2);
+    tracker.setDivisor(2);
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(mNow + 1 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 1 * mPeriod), Eq(mNow + 3 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 3 * mPeriod), Eq(mNow + 5 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 5 * mPeriod), Eq(mNow + 7 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 7 * mPeriod), Eq(mNow + 9 * mPeriod));
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 9 * mPeriod), Eq(mNow + 11 * mPeriod));
-
-    tracker.setRenderRate(refreshRate / 6);
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(mNow + 1 * mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 1 * mPeriod), Eq(mNow + 7 * mPeriod));
-}
-
-TEST_F(VSyncPredictorTest, setRenderRateIsIgnoredIfNotDivisor) {
-    auto last = mNow;
-    for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
-        EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(last + mPeriod));
-        mNow += mPeriod;
-        last = mNow;
-        tracker.addVsyncTimestamp(mNow);
-    }
-
-    tracker.setRenderRate(Fps::fromPeriodNsecs(3.5f * mPeriod));
-
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow), Eq(mNow + mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 100), Eq(mNow + mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 1100), Eq(mNow + 2 * mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 2100), Eq(mNow + 3 * mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 3100), Eq(mNow + 4 * mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 4100), Eq(mNow + 5 * mPeriod));
-    EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 5100), Eq(mNow + 6 * mPeriod));
 }
 
 } // namespace android::scheduler
diff --git a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
index fb8d989..1fb2709 100644
--- a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
@@ -50,7 +50,7 @@
     MOCK_METHOD0(resetModel, void());
     MOCK_CONST_METHOD0(needsMoreSamples, bool());
     MOCK_CONST_METHOD2(isVSyncInPhase, bool(nsecs_t, Fps));
-    MOCK_METHOD(void, setRenderRate, (Fps), (override));
+    MOCK_METHOD(void, setDivisor, (unsigned), (override));
     MOCK_CONST_METHOD1(dump, void(std::string&));
 };
 
diff --git a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
index dcf25e1..6893154 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
@@ -34,7 +34,7 @@
     MOCK_METHOD0(resetModel, void());
     MOCK_CONST_METHOD0(needsMoreSamples, bool());
     MOCK_CONST_METHOD2(isVSyncInPhase, bool(nsecs_t, Fps));
-    MOCK_METHOD(void, setRenderRate, (Fps), (override));
+    MOCK_METHOD(void, setDivisor, (unsigned), (override));
     MOCK_CONST_METHOD1(dump, void(std::string&));
 };