SF: Move some Scheduler APIs to VsyncSchedule
Scheduler::getDisplayStatInfo forces callers to query both the deadline
and period, so split it into two VsyncSchedule APIs. Inline Scheduler::
getPreviousVsyncFrom.
Introduce <scheduler/Time.h> for type-safe, self-documenting wrappers
around std::chrono, which will gradually supersede nsecs_t (including
<scheduler/Fps.h> integration).
Clean up SF helpers for previous present fences. Remove the unnecessary
and inaccurate CompositorTiming initialization.
Bug: 185535769
Test: Perfetto timeline is green.
Change-Id: I22d8ad44ae37612e66f9d98fd4e7e1831951eb99
diff --git a/services/surfaceflinger/Scheduler/VsyncSchedule.h b/services/surfaceflinger/Scheduler/VsyncSchedule.h
index 0d9b114..8c17409 100644
--- a/services/surfaceflinger/Scheduler/VsyncSchedule.h
+++ b/services/surfaceflinger/Scheduler/VsyncSchedule.h
@@ -20,6 +20,7 @@
#include <string>
#include <scheduler/Features.h>
+#include <scheduler/Time.h>
namespace android::scheduler {
@@ -38,6 +39,9 @@
VsyncSchedule(VsyncSchedule&&);
~VsyncSchedule();
+ Period period() const;
+ TimePoint vsyncDeadlineAfter(TimePoint) const;
+
// TODO(b/185535769): Hide behind API.
const VsyncTracker& getTracker() const { return *mTracker; }
VsyncTracker& getTracker() { return *mTracker; }