SurfaceFlinger: introduce PhaseOffsetsAsDurations
Currently we define phase offset for each refresh rate. This works for
<= 2 refresh rates, but doesn't scale well. This change is introducing
a new way to calculate phase offsets, which is based on duration. Then,
based on the duration and refresh rate, a phase offset is calculated.
The calculation is captured here: https://docs.google.com/spreadsheets/d/1a_5cVNY3LUAkeg-yL56rYQNwved6Hy-dvEcKSxp6f8k/edit#gid=0
Bug: 145561086
Bug: 141329414
Test: jank tests
Test: adb shell /data/nativetest64/libsurfaceflinger_unittest/libsurfaceflinger_unittest
Change-Id: I16aaf7437d30c4b12f955bdaac36582dd100519f
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 15277ce..2fa8b3f 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -66,7 +66,6 @@
using ConnectionHandle = scheduler::ConnectionHandle;
ConnectionHandle createConnection(const char* connectionName, nsecs_t phaseOffsetNs,
- nsecs_t offsetThresholdForNextVsync,
impl::EventThread::InterceptVSyncsCallback);
sp<IDisplayEventConnection> createDisplayEventConnection(ConnectionHandle,
@@ -149,8 +148,7 @@
Scheduler(std::unique_ptr<DispSync>, std::unique_ptr<EventControlThread>,
const scheduler::RefreshRateConfigs&, ISchedulerCallback& schedulerCallback);
- std::unique_ptr<VSyncSource> makePrimaryDispSyncSource(const char* name, nsecs_t phaseOffsetNs,
- nsecs_t offsetThresholdForNextVsync);
+ std::unique_ptr<VSyncSource> makePrimaryDispSyncSource(const char* name, nsecs_t phaseOffsetNs);
// Create a connection on the given EventThread.
ConnectionHandle createConnection(std::unique_ptr<EventThread>);