use HRC clock timings in avatar mixer

assignment-client/src/avatars/AvatarMixer.cpp

@@ -36,14 +36,7 @@ const unsigned int AVATAR_DATA_SEND_INTERVAL_MSECS = (1.0f / (float) AVATAR_MIXE
 
 AvatarMixer::AvatarMixer(ReceivedMessage& message) :
     ThreadedAssignment(message),
-    _broadcastThread(),
-    _lastFrameTimestamp(QDateTime::currentMSecsSinceEpoch()),
-    _trailingSleepRatio(1.0f),
-    _performanceThrottlingRatio(0.0f),
-    _sumListeners(0),
-    _numStatFrames(0),
-    _sumBillboardPackets(0),
-    _sumIdentityPackets(0)
+    _broadcastThread()
 {
     // make sure we hear about node kills so we can tell the other nodes
     connect(DependencyManager::get<NodeList>().data(), &NodeList::nodeKilled, this, &AvatarMixer::nodeKilled);
@@ -72,7 +65,12 @@ const float BILLBOARD_AND_IDENTITY_SEND_PROBABILITY = 1.0f / 187.0f;
 //    1) use the view frustum to cull those avatars that are out of view. Since avatar data doesn't need to be present
 //       if the avatar is not in view or in the keyhole.
 void AvatarMixer::broadcastAvatarData() {
-    int idleTime = QDateTime::currentMSecsSinceEpoch() - _lastFrameTimestamp;
+    int idleTime = AVATAR_DATA_SEND_INTERVAL_MSECS;
+
+    if (_lastFrameTimestamp.time_since_epoch().count() > 0) {
+        auto idleDuration = p_high_resolution_clock::now() - _lastFrameTimestamp;
+        idleTime = std::chrono::duration_cast<std::chrono::microseconds>(idleDuration).count();
+    }
 
     ++_numStatFrames;
 
@@ -250,7 +248,7 @@ void AvatarMixer::broadcastAvatarData() {
 
                     // we will also force a send of billboard or identity packet
                     // if either has changed in the last frame
-                    if (otherNodeData->getBillboardChangeTimestamp() > 0
+                    if (otherNodeData->getBillboardChangeTimestamp().time_since_epoch().count() > 0
                         && (forceSend
                             || otherNodeData->getBillboardChangeTimestamp() > _lastFrameTimestamp
                             || distribution(generator) < BILLBOARD_AND_IDENTITY_SEND_PROBABILITY)) {
@@ -267,7 +265,7 @@ void AvatarMixer::broadcastAvatarData() {
                         ++_sumBillboardPackets;
                     }
 
-                    if (otherNodeData->getIdentityChangeTimestamp() > 0
+                    if (otherNodeData->getIdentityChangeTimestamp().time_since_epoch().count() > 0
                         && (forceSend
                             || otherNodeData->getIdentityChangeTimestamp() > _lastFrameTimestamp
                             || distribution(generator) < BILLBOARD_AND_IDENTITY_SEND_PROBABILITY)) {
@@ -385,7 +383,7 @@ void AvatarMixer::broadcastAvatarData() {
             otherAvatar.doneEncoding(false);
         });
 
-    _lastFrameTimestamp = QDateTime::currentMSecsSinceEpoch();
+    _lastFrameTimestamp = p_high_resolution_clock::now();
 }
 
 void AvatarMixer::nodeKilled(SharedNodePointer killedNode) {
@@ -438,7 +436,7 @@ void AvatarMixer::handleAvatarIdentityPacket(QSharedPointer<ReceivedMessage> mes
             // parse the identity packet and update the change timestamp if appropriate
             if (avatar.hasIdentityChangedAfterParsing(message->getMessage())) {
                 QMutexLocker nodeDataLocker(&nodeData->getMutex());
-                nodeData->setIdentityChangeTimestamp(QDateTime::currentMSecsSinceEpoch());
+                nodeData->flagIdentityChange();
             }
         }
     }
@@ -452,7 +450,7 @@ void AvatarMixer::handleAvatarBillboardPacket(QSharedPointer<ReceivedMessage> me
         // parse the billboard packet and update the change timestamp if appropriate
         if (avatar.hasBillboardChangedAfterParsing(message->getMessage())) {
             QMutexLocker nodeDataLocker(&nodeData->getMutex());
-            nodeData->setBillboardChangeTimestamp(QDateTime::currentMSecsSinceEpoch());
+            nodeData->flagBillboardChange();
         }
 
     }

assignment-client/src/avatars/AvatarMixer.h

@@ -15,6 +15,8 @@
 #ifndef hifi_AvatarMixer_h
 #define hifi_AvatarMixer_h
 
+#include <PortableHighResolutionClock.h>
+
 #include <ThreadedAssignment.h>
 
 /// Handles assignments of type AvatarMixer - distribution of avatar data to various clients
@@ -44,15 +46,15 @@ private:
     
     QThread _broadcastThread;
     
-    quint64 _lastFrameTimestamp;
+    p_high_resolution_clock::time_point _lastFrameTimestamp;
     
-    float _trailingSleepRatio;
-    float _performanceThrottlingRatio;
+    float _trailingSleepRatio { 1.0f };
+    float _performanceThrottlingRatio { 0.0f };
     
-    int _sumListeners;
-    int _numStatFrames;
-    int _sumBillboardPackets;
-    int _sumIdentityPackets;
+    int _sumListeners { 0 };
+    int _numStatFrames { 0 };
+    int _sumBillboardPackets { 0 };
+    int _sumIdentityPackets { 0 };
 
     float _maxKbpsPerNode = 0.0f;
 

assignment-client/src/avatars/AvatarMixerClientData.h

@@ -24,6 +24,7 @@
 #include <NodeData.h>
 #include <NumericalConstants.h>
 #include <udt/PacketHeaders.h>
+#include <PortableHighResolutionClock.h>
 #include <SimpleMovingAverage.h>
 #include <UUIDHasher.h>
 
@@ -33,6 +34,8 @@ const QString INBOUND_AVATAR_DATA_STATS_KEY = "inbound_av_data_kbps";
 class AvatarMixerClientData : public NodeData {
     Q_OBJECT
 public:
+    using HRCTime = p_high_resolution_clock::time_point;
+
     int parseData(ReceivedMessage& message) override;
     AvatarData& getAvatar() { return *_avatar; }
 
@@ -45,11 +48,11 @@ public:
 
     uint16_t getLastReceivedSequenceNumber() const { return _lastReceivedSequenceNumber; }
 
-    quint64 getBillboardChangeTimestamp() const { return _billboardChangeTimestamp; }
-    void setBillboardChangeTimestamp(quint64 billboardChangeTimestamp) { _billboardChangeTimestamp = billboardChangeTimestamp; }
+    HRCTime getBillboardChangeTimestamp() const { return _billboardChangeTimestamp; }
+    void flagBillboardChange() { _billboardChangeTimestamp = p_high_resolution_clock::now(); }
 
-    quint64 getIdentityChangeTimestamp() const { return _identityChangeTimestamp; }
-    void setIdentityChangeTimestamp(quint64 identityChangeTimestamp) { _identityChangeTimestamp = identityChangeTimestamp; }
+    HRCTime getIdentityChangeTimestamp() const { return _identityChangeTimestamp; }
+    void flagIdentityChange() { _identityChangeTimestamp = p_high_resolution_clock::now(); }
 
     void setFullRateDistance(float fullRateDistance) { _fullRateDistance = fullRateDistance; }
     float getFullRateDistance() const { return _fullRateDistance; }
@@ -86,8 +89,8 @@ private:
     std::unordered_map<QUuid, uint16_t> _lastBroadcastSequenceNumbers;
     std::unordered_set<QUuid> _hasReceivedFirstPacketsFrom;
 
-    quint64 _billboardChangeTimestamp = 0;
-    quint64 _identityChangeTimestamp = 0;
+    p_high_resolution_clock::time_point _billboardChangeTimestamp;
+    p_high_resolution_clock::time_point _identityChangeTimestamp;
 
     float _fullRateDistance = FLT_MAX;
     float _maxAvatarDistance = FLT_MAX;