From 2f380b3669a70dce58e3b35b029aa7258465e479 Mon Sep 17 00:00:00 2001
From: Sam Gateau <sam@highfidelity.io>
Date: Tue, 14 May 2019 17:58:32 -0700
Subject: [PATCH] Detailing the info from the refresh rate

---
 .../src/display-plugins/RefreshRateController.cpp             | 4 +++-
 .../src/display-plugins/RefreshRateController.h               | 2 +-
 libraries/plugins/src/plugins/DisplayPlugin.h                 | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/libraries/display-plugins/src/display-plugins/RefreshRateController.cpp b/libraries/display-plugins/src/display-plugins/RefreshRateController.cpp
index 2d9b553163..369c3cdb26 100644
--- a/libraries/display-plugins/src/display-plugins/RefreshRateController.cpp
+++ b/libraries/display-plugins/src/display-plugins/RefreshRateController.cpp
@@ -30,7 +30,7 @@ int RefreshRateController::getRefreshRateLimitPeriod() const {
     return durationNanosecondsToHz(_refreshRateLimitPeriod);
 }
 
-void RefreshRateController::sleepThreadIfNeeded(QThread* thread, bool isHmd) {
+std::chrono::nanoseconds RefreshRateController::sleepThreadIfNeeded(QThread* thread, bool isHmd) {
     if (!isHmd) {
         static const std::chrono::nanoseconds EPSILON = std::chrono::milliseconds(1);
         auto duration = std::chrono::duration_cast<std::chrono::nanoseconds>(_endTime - _startTime);
@@ -39,5 +39,7 @@ void RefreshRateController::sleepThreadIfNeeded(QThread* thread, bool isHmd) {
         if (sleepDuration.count() > 0) {
             thread->msleep(std::chrono::duration_cast<std::chrono::milliseconds>(sleepDuration).count());
         }
+        return sleepDuration;
     }
+    return std::chrono::nanoseconds(0);
 }
diff --git a/libraries/display-plugins/src/display-plugins/RefreshRateController.h b/libraries/display-plugins/src/display-plugins/RefreshRateController.h
index 15adee3d3d..3cb563377f 100644
--- a/libraries/display-plugins/src/display-plugins/RefreshRateController.h
+++ b/libraries/display-plugins/src/display-plugins/RefreshRateController.h
@@ -29,7 +29,7 @@ public:
 
     void clockStartTime() { _startTime = std::chrono::high_resolution_clock::now(); }
     void clockEndTime() { _endTime = std::chrono::high_resolution_clock::now(); }
-    void sleepThreadIfNeeded(QThread* thread, bool isHmd);
+    std::chrono::nanoseconds sleepThreadIfNeeded(QThread* thread, bool isHmd);
 private:
     std::chrono::time_point<std::chrono::high_resolution_clock> _startTime { std::chrono::high_resolution_clock::now() };
     std::chrono::time_point<std::chrono::high_resolution_clock> _endTime { std::chrono::high_resolution_clock::now() };
diff --git a/libraries/plugins/src/plugins/DisplayPlugin.h b/libraries/plugins/src/plugins/DisplayPlugin.h
index a07e6cea04..9dc1d7002d 100644
--- a/libraries/plugins/src/plugins/DisplayPlugin.h
+++ b/libraries/plugins/src/plugins/DisplayPlugin.h
@@ -211,7 +211,7 @@ public:
     virtual void cycleDebugOutput() {}
 
     void waitForPresent();
-    float getAveragePresentTime() { return _movingAveragePresent.average / (float)USECS_PER_MSEC; } // in msec
+    float getAveragePresentTime() { return _movingAveragePresent.average / (float)USECS_PER_MSEC; }  // in msec
 
     std::function<void(gpu::Batch&, const gpu::TexturePointer&, bool mirror)> getHUDOperator();