SF: add a backdoor to introduce a janky frame to HWC
Bug: 346503493
Test: adb shell service call SurfaceFlinger 1046 i32 3Test: adb root && adb shell service call SurfaceFlinger 1046 i32 3
Flag: EXEMPT bugfix
Change-Id: Ic4a837ef06aca40a24db9c1121e19e3e1a1e0d80
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 8c587a9..2875650 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -203,12 +203,16 @@
void Scheduler::onFrameSignal(ICompositor& compositor, VsyncId vsyncId,
TimePoint expectedVsyncTime) {
+ const auto debugPresentDelay = mDebugPresentDelay.load();
+ mDebugPresentDelay.store(std::nullopt);
+
const FrameTargeter::BeginFrameArgs beginFrameArgs =
{.frameBeginTime = SchedulerClock::now(),
.vsyncId = vsyncId,
.expectedVsyncTime = expectedVsyncTime,
.sfWorkDuration = mVsyncModulator->getVsyncConfig().sfWorkDuration,
- .hwcMinWorkDuration = mVsyncConfiguration->getCurrentConfigs().hwcMinWorkDuration};
+ .hwcMinWorkDuration = mVsyncConfiguration->getCurrentConfigs().hwcMinWorkDuration,
+ .debugPresentTimeDelay = debugPresentDelay};
ftl::NonNull<const Display*> pacesetterPtr = pacesetterPtrLocked();
pacesetterPtr->targeterPtr->beginFrame(beginFrameArgs, *pacesetterPtr->schedulePtr);