text: //
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  // Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
  // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
  // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
  
  
  #include "foundation/PxMemory.h"
  #include "ScSimStats.h"
  #include "PxvSimStats.h"
  
  using namespace physx;
  
  static const PxU32 sBroadphaseAddRemoveSize = sizeof(PxU32) * PxSimulationStatistics::eVOLUME_COUNT;
  
  Sc::SimStats::SimStats()
  {
  	PxMemZero(&numBroadPhaseAdds, sBroadphaseAddRemoveSize);
  	PxMemZero(&numBroadPhaseRemoves, sBroadphaseAddRemoveSize);
  
  	clear();
  }
  
  
  void Sc::SimStats::clear()
  {
  #if PX_ENABLE_SIM_STATS
  	PxMemZero(const_cast<void*>(reinterpret_cast<volatile void*>(&numTriggerPairs)), sizeof(TriggerPairCounts));
  	PxMemZero(&numBroadPhaseAddsPending, sBroadphaseAddRemoveSize);
  	PxMemZero(&numBroadPhaseRemovesPending, sBroadphaseAddRemoveSize);
  #endif
  }
  
  
  void Sc::SimStats::simStart()
  {
  #if PX_ENABLE_SIM_STATS
  	// pending broadphase adds/removes are now the current ones
  	PxMemMove(numBroadPhaseAdds, numBroadPhaseAddsPending, sBroadphaseAddRemoveSize);
  	PxMemMove(numBroadPhaseRemoves, numBroadPhaseRemovesPending, sBroadphaseAddRemoveSize);
  	clear();
  #endif
  }
  
  
  void Sc::SimStats::readOut(PxSimulationStatistics& s, const PxvSimStats& simStats) const
  {
  #if PX_ENABLE_SIM_STATS
  	s = PxSimulationStatistics();  // clear stats
  
  	for(PxU32 i=0; i < PxGeometryType::eCONVEXMESH+1; i++)
  	{
  		for(PxU32 j=0; j < PxGeometryType::eGEOMETRY_COUNT; j++)
  		{
  			s.nbTriggerPairs[i][j] += PxU32(numTriggerPairs[i][j]);
  			if (i != j)
  				s.nbTriggerPairs[j][i] += PxU32(numTriggerPairs[i][j]);
  		}
  	}
  
  	for(PxU32 i=0; i < PxSimulationStatistics::eVOLUME_COUNT; i++)
  	{
  		s.nbBroadPhaseAdds[i] = numBroadPhaseAdds[i];
  		s.nbBroadPhaseRemoves[i] = numBroadPhaseRemoves[i];
  	}
  
  	for(PxU32 i=0; i < PxGeometryType::eGEOMETRY_COUNT; i++)
  	{
  		s.nbDiscreteContactPairs[i][i] = simStats.mNbDiscreteContactPairs[i][i];
  		s.nbModifiedContactPairs[i][i] = simStats.mNbModifiedContactPairs[i][i];
  		s.nbCCDPairs[i][i] = simStats.mNbCCDPairs[i][i];
  
  		for(PxU32 j=i+1; j < PxGeometryType::eGEOMETRY_COUNT; j++)
  		{
  			PxU32 c = simStats.mNbDiscreteContactPairs[i][j];
  			s.nbDiscreteContactPairs[i][j] = c;
  			s.nbDiscreteContactPairs[j][i] = c;
  
  			c = simStats.mNbModifiedContactPairs[i][j];
  			s.nbModifiedContactPairs[i][j] = c;
  			s.nbModifiedContactPairs[j][i] = c;
  
  			c = simStats.mNbCCDPairs[i][j];
  			s.nbCCDPairs[i][j] = c;
  			s.nbCCDPairs[j][i] = c;
  		}
  #if PX_DEBUG
  		for(PxU32 j=0; j < i; j++)
  		{
  			// PxvSimStats should only use one half of the matrix
  			PX_ASSERT(simStats.mNbDiscreteContactPairs[i][j] == 0);
  			PX_ASSERT(simStats.mNbModifiedContactPairs[i][j] == 0);
  			PX_ASSERT(simStats.mNbCCDPairs[i][j] == 0);
  		}
  #endif
  	}
  
  	s.nbDiscreteContactPairsTotal = simStats.mNbDiscreteContactPairsTotal;
  	s.nbDiscreteContactPairsWithCacheHits = simStats.mNbDiscreteContactPairsWithCacheHits;
  	s.nbDiscreteContactPairsWithContacts = simStats.mNbDiscreteContactPairsWithContacts;
  	s.nbActiveConstraints = simStats.mNbActiveConstraints;
  	s.nbActiveDynamicBodies = simStats.mNbActiveDynamicBodies;
  	s.nbActiveKinematicBodies = simStats.mNbActiveKinematicBodies;
  
  	s.nbAxisSolverConstraints = simStats.mNbAxisSolverConstraints;
  
  	s.peakConstraintMemory = simStats.mPeakConstraintBlockAllocations * 16 * 1024;
  	s.compressedContactSize = simStats.mTotalCompressedContactSize;
  	s.requiredContactConstraintMemory = simStats.mTotalConstraintSize;
  	s.nbNewPairs = simStats.mNbNewPairs;
  	s.nbLostPairs = simStats.mNbLostPairs;
  	s.nbNewTouches = simStats.mNbNewTouches;
  	s.nbLostTouches = simStats.mNbLostTouches;
  	s.nbPartitions = simStats.mNbPartitions;
  
  #else
  	PX_UNUSED(s);
  	PX_UNUSED(simStats);
  #endif
  }
  