text: //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions
  // are met:
  //  * Redistributions of source code must retain the above copyright
  //    notice, this list of conditions and the following disclaimer.
  //  * Redistributions in binary form must reproduce the above copyright
  //    notice, this list of conditions and the following disclaimer in the
  //    documentation and/or other materials provided with the distribution.
  //  * Neither the name of NVIDIA CORPORATION nor the names of its
  //    contributors may be used to endorse or promote products derived
  //    from this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  // PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  // Copyright (c) 2018-2019 NVIDIA Corporation. All rights reserved.
  
  
  
  #ifndef USERALLOCATOR_H
  #define USERALLOCATOR_H
  
  #include "ApexDefs.h"
  #include "PxAllocatorCallback.h"
  #include "ApexUsingNamespace.h"
  
  #pragma warning(push)
  #pragma warning(disable:4512)
  
  #if PX_CHECKED || defined(_DEBUG)
  #if PX_WINDOWS_FAMILY
  #define USE_MEM_TRACKER
  #endif
  #endif
  
  namespace MEM_TRACKER
  {
  	class MemTracker;
  };
  
  /* User allocator for APEX and 3.0 PhysX SDK */
  class UserPxAllocator : public physx::PxAllocatorCallback
  {
  public:
  	UserPxAllocator(const char* context, const char* dllName, bool useTrackerIfSupported = true);
  	virtual		   ~UserPxAllocator();
  
  	uint32_t	getHandle(const char* name);
  
  
  	void*			allocate(size_t size, const char* typeName, const char* filename, int line);
  	void			deallocate(void* ptr);
  
  	size_t			getAllocatedMemoryBytes()
  	{
  		return mMemoryAllocated;
  	}
  
  	static bool dumpMemoryLeaks(const char* filename);
  
  private:
  	bool				trackerEnabled() const { return mUseTracker && (NULL != mMemoryTracker); }
  
  	const char*			mContext;
  	size_t				mMemoryAllocated;
  	const bool			mUseTracker;
  
  	static MEM_TRACKER::MemTracker	*mMemoryTracker;
  	static int gMemoryTrackerClients;
  
  	// Poor man's memory leak check
  	static unsigned int mNumAllocations;
  	static unsigned int mNumFrees;
  };
  
  #pragma warning(pop)
  
  #endif
  