SF: fix a few bugs with FrameTargeter storing N fences
Bug: 267315508
Bug: 354007767
Bug: 308858993
Test: SF unit tests
Flag: com.android.graphics.surfaceflinger.flags.allow_n_vsyncs_in_targeter
Change-Id: Ib603c0fd29a3e4cb2fcd99dca59bbd5bfb55a787
diff --git a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
index 190d062..bc73cbb 100644
--- a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
+++ b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
@@ -53,12 +53,13 @@
const auto& target() const { return mTargeter.target(); }
- bool wouldPresentEarly(Period minFramePeriod) const {
- return target().wouldPresentEarly(minFramePeriod);
+ bool wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const {
+ return target().wouldPresentEarly(vsyncPeriod, minFramePeriod);
}
- FrameTarget::FenceWithFenceTime presentFenceForPastVsync(Period minFramePeriod) const {
- return target().presentFenceForPastVsync(minFramePeriod);
+ std::pair<bool /*wouldBackpressure*/, FrameTarget::PresentFence> expectedSignaledPresentFence(
+ Period vsyncPeriod, Period minFramePeriod) const {
+ return target().expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
}
struct Frame {
@@ -173,7 +174,6 @@
}
TEST_F(FrameTargeterTest, recallsPastVsync) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{111};
TimePoint frameBeginTime(1000ms);
constexpr Fps kRefreshRate = 60_Hz;
@@ -181,16 +181,72 @@
constexpr Duration kFrameDuration = 13ms;
for (int n = 5; n-- > 0;) {
- Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
- const auto fence = frame.end();
+ FenceTimePtr fence;
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
+ kRefreshRate);
+ fence = frame.end();
+ }
- EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - kPeriod);
- EXPECT_EQ(presentFenceForPastVsync(kPeriod).fenceTime, fence);
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+ const auto [wouldBackpressure, presentFence] =
+ expectedSignaledPresentFence(kPeriod, kPeriod);
+ ASSERT_TRUE(wouldBackpressure);
+ EXPECT_EQ(presentFence.fenceTime, fence);
+ }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTime) {
+ SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+ VsyncId vsyncId{111};
+ TimePoint frameBeginTime(1000ms);
+ constexpr Fps kRefreshRate = 60_Hz;
+ constexpr Period kPeriod = kRefreshRate.getPeriod();
+ constexpr Duration kFrameDuration = 13ms;
+
+ { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+ const auto [wouldBackpressure, presentFence] =
+ expectedSignaledPresentFence(kPeriod, kPeriod);
+ EXPECT_TRUE(wouldBackpressure);
+ }
+ {
+ frameBeginTime += kPeriod;
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+ const auto [wouldBackpressure, presentFence] =
+ expectedSignaledPresentFence(kPeriod, kPeriod);
+ EXPECT_FALSE(wouldBackpressure);
+ }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTimeLegacy) {
+ SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
+ VsyncId vsyncId{111};
+ TimePoint frameBeginTime(1000ms);
+ constexpr Fps kRefreshRate = 60_Hz;
+ constexpr Period kPeriod = kRefreshRate.getPeriod();
+ constexpr Duration kFrameDuration = 13ms;
+
+ { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+ const auto [wouldBackpressure, presentFence] =
+ expectedSignaledPresentFence(kPeriod, kPeriod);
+ EXPECT_TRUE(wouldBackpressure);
+ }
+ {
+ frameBeginTime += kPeriod;
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+ const auto [wouldBackpressure, presentFence] =
+ expectedSignaledPresentFence(kPeriod, kPeriod);
+ EXPECT_TRUE(wouldBackpressure);
}
}
TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAhead) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{222};
TimePoint frameBeginTime(2000ms);
constexpr Fps kRefreshRate = 120_Hz;
@@ -198,101 +254,66 @@
constexpr Duration kFrameDuration = 10ms;
FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+ FenceTimePtr currentFence = FenceTime::NO_FENCE;
for (int n = 5; n-- > 0;) {
Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
- const auto fence = frame.end();
-
- EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
- EXPECT_EQ(presentFenceForPastVsync(kPeriod).fenceTime, previousFence);
-
- previousFence = fence;
+ EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, previousFence);
+ previousFence = currentFence;
+ currentFence = frame.end();
}
}
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAhead) {
+TEST_F(FrameTargeterTest, recallsPastVsyncFiveVsyncsAhead) {
SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+
VsyncId vsyncId{222};
TimePoint frameBeginTime(2000ms);
constexpr Fps kRefreshRate = 120_Hz;
constexpr Period kPeriod = kRefreshRate.getPeriod();
- constexpr Duration kFrameDuration = 10ms;
+ constexpr Duration kFrameDuration = 40ms;
- FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+ FenceTimePtr firstFence = FenceTime::NO_FENCE;
for (int n = 5; n-- > 0;) {
Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
const auto fence = frame.end();
-
- const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
- EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
- EXPECT_EQ(presentFenceForPastVsync(kFrameDuration).fenceTime, previousFence);
-
- frameBeginTime += kPeriod;
- previousFence = fence;
+ if (firstFence == FenceTime::NO_FENCE) {
+ firstFence = fence;
+ }
}
+
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+ EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, firstFence);
}
TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAheadVrr) {
SET_FLAG_FOR_TEST(flags::vrr_config, true);
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{222};
TimePoint frameBeginTime(2000ms);
constexpr Fps kRefreshRate = 120_Hz;
- constexpr Fps kPeakRefreshRate = 240_Hz;
+ constexpr Fps kVsyncRate = 240_Hz;
constexpr Period kPeriod = kRefreshRate.getPeriod();
+ constexpr Period kVsyncPeriod = kVsyncRate.getPeriod();
constexpr Duration kFrameDuration = 10ms;
FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+ FenceTimePtr currentFence = FenceTime::NO_FENCE;
for (int n = 5; n-- > 0;) {
- Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
- kPeakRefreshRate);
- const auto fence = frame.end();
-
- EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
- EXPECT_EQ(presentFenceForPastVsync(kPeriod).fenceTime, previousFence);
-
- previousFence = fence;
- }
-}
-
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAheadVrr) {
- SET_FLAG_FOR_TEST(flags::vrr_config, true);
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
-
- VsyncId vsyncId{222};
- TimePoint frameBeginTime(2000ms);
- constexpr Fps kRefreshRate = 120_Hz;
- constexpr Fps kPeakRefreshRate = 240_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,
- kPeakRefreshRate);
- const auto fence = frame.end();
-
- const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
- EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
- EXPECT_EQ(presentFenceForPastVsync(kFrameDuration).fenceTime, previousFence);
-
- frameBeginTime += kPeriod;
- previousFence = fence;
+ Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+ EXPECT_EQ(expectedSignaledPresentFence(kVsyncPeriod, kPeriod).second.fenceTime,
+ previousFence);
+ previousFence = currentFence;
+ currentFence = frame.end();
}
}
TEST_F(FrameTargeterTest, doesNotDetectEarlyPresentIfNoFence) {
constexpr Period kPeriod = (60_Hz).getPeriod();
- EXPECT_EQ(presentFenceForPastVsync(kPeriod).fenceTime, FenceTime::NO_FENCE);
- EXPECT_FALSE(wouldPresentEarly(kPeriod));
+ EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, FenceTime::NO_FENCE);
+ EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
}
TEST_F(FrameTargeterTest, detectsEarlyPresent) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{333};
TimePoint frameBeginTime(3000ms);
constexpr Fps kRefreshRate = 60_Hz;
@@ -300,20 +321,24 @@
// 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, kRefreshRate);
- EXPECT_FALSE(wouldPresentEarly(kPeriod));
+ {
+ const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+ }
+ EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
EXPECT_FALSE(target().earliestPresentTime());
}
// The target is early if the past present fence was signaled.
- Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
- const auto fence = frame.end();
- fence->signalForTest(frameBeginTime.ns());
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+ const auto fence = frame.end();
+ fence->signalForTest(frameBeginTime.ns());
+ }
Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
// `finalFrame` would present early, so it has an earliest present time.
- EXPECT_TRUE(wouldPresentEarly(kPeriod));
+ EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
ASSERT_NE(std::nullopt, target().earliestPresentTime());
EXPECT_EQ(*target().earliestPresentTime(),
target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
@@ -322,7 +347,6 @@
// Same as `detectsEarlyPresent`, above, but verifies that we do not set an earliest present time
// when there is expected present time support.
TEST_F(FrameTargeterWithExpectedPresentSupportTest, detectsEarlyPresent) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{333};
TimePoint frameBeginTime(3000ms);
constexpr Fps kRefreshRate = 60_Hz;
@@ -330,26 +354,30 @@
// 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, kRefreshRate);
- EXPECT_FALSE(wouldPresentEarly(kPeriod));
+ {
+ const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+ }
+ EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
EXPECT_FALSE(target().earliestPresentTime());
}
// The target is early if the past present fence was signaled.
- Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
- const auto fence = frame.end();
- fence->signalForTest(frameBeginTime.ns());
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+
+ const auto fence = frame.end();
+ fence->signalForTest(frameBeginTime.ns());
+ }
Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
// `finalFrame` would present early, but we have expected present time support, so it has no
// earliest present time.
- EXPECT_TRUE(wouldPresentEarly(kPeriod));
+ EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
ASSERT_EQ(std::nullopt, target().earliestPresentTime());
}
TEST_F(FrameTargeterTest, detectsEarlyPresentTwoVsyncsAhead) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
VsyncId vsyncId{444};
TimePoint frameBeginTime(4000ms);
constexpr Fps kRefreshRate = 120_Hz;
@@ -357,17 +385,21 @@
// 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, kRefreshRate);
- EXPECT_FALSE(wouldPresentEarly(kPeriod));
+ {
+ const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+ }
+ EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
EXPECT_FALSE(target().earliestPresentTime());
}
+ {
+ Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
- Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
- const auto fence = frame.end();
- fence->signalForTest(frameBeginTime.ns());
+ 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(wouldPresentEarly(kPeriod));
+ EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
EXPECT_FALSE(target().earliestPresentTime());
{ const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate); }
@@ -375,66 +407,21 @@
Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
// The target is early if the past present fence was signaled.
- EXPECT_TRUE(wouldPresentEarly(kPeriod));
+ EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
ASSERT_NE(std::nullopt, target().earliestPresentTime());
EXPECT_EQ(*target().earliestPresentTime(),
target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
}
-TEST_F(FrameTargeterTest, detectsEarlyPresentNVsyncsAhead) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
- VsyncId vsyncId{444};
- TimePoint frameBeginTime(4000ms);
- Fps refreshRate = 120_Hz;
- Period period = refreshRate.getPeriod();
-
- // The target is not early while past present fences are pending.
- for (int n = 5; n-- > 0;) {
- const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
- EXPECT_FALSE(wouldPresentEarly(period));
- EXPECT_FALSE(target().earliestPresentTime());
- }
-
- Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
- auto fence = frame.end();
- frameBeginTime += period;
- fence->signalForTest(frameBeginTime.ns());
-
- // The target is two VSYNCs ahead, so the past present fence is still pending.
- EXPECT_FALSE(wouldPresentEarly(period));
- EXPECT_FALSE(target().earliestPresentTime());
-
- { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate); }
-
- Frame oneEarlyPresentFrame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
- // The target is early if the past present fence was signaled.
- EXPECT_TRUE(wouldPresentEarly(period));
- ASSERT_NE(std::nullopt, target().earliestPresentTime());
- EXPECT_EQ(*target().earliestPresentTime(),
- target().expectedPresentTime() - period - kHwcMinWorkDuration);
-
- fence = oneEarlyPresentFrame.end();
- frameBeginTime += period;
- fence->signalForTest(frameBeginTime.ns());
-
- // Change rate to track frame more than 2 vsyncs ahead
- refreshRate = 144_Hz;
- period = refreshRate.getPeriod();
- Frame onePresentEarlyFrame(this, vsyncId++, frameBeginTime, 16ms, refreshRate, refreshRate);
- // The target is not early as last frame as the past frame is tracked for pending.
- EXPECT_FALSE(wouldPresentEarly(period));
-}
-
TEST_F(FrameTargeterTest, detectsEarlyPresentThreeVsyncsAhead) {
- SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
TimePoint frameBeginTime(5000ms);
constexpr Fps kRefreshRate = 144_Hz;
constexpr Period kPeriod = kRefreshRate.getPeriod();
- const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate);
+ { const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate); }
// The target is more than two VSYNCs ahead, but present fences are not tracked that far back.
- EXPECT_TRUE(wouldPresentEarly(kPeriod));
+ EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
EXPECT_TRUE(target().earliestPresentTime());
EXPECT_EQ(*target().earliestPresentTime(),
target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);