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
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  // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  // Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved.
  // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
  // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
  
  #ifndef PSFOUNDATION_PSALLOCA_H
  #define PSFOUNDATION_PSALLOCA_H
  
  #include "PsTempAllocator.h"
  
  namespace physx
  {
  namespace shdfnd
  {
  template <typename T, typename Alloc = TempAllocator>
  class ScopedPointer : private Alloc
  {
    public:
  	~ScopedPointer()
  	{
  		if(mOwned)
  			Alloc::deallocate(mPointer);
  	}
  
  	operator T*() const
  	{
  		return mPointer;
  	}
  
  	T* mPointer;
  	bool mOwned;
  };
  
  } // namespace shdfnd
  } // namespace physx
  
  /*! Stack allocation for \c count instances of \c type. Falling back to temp allocator if using more than 1kB. */
  #ifdef __SPU__
  #define PX_ALLOCA(var, type, count) type* var = reinterpret_cast<type*>(PxAlloca(sizeof(type) * (count)))
  #else
  #define PX_ALLOCA(var, type, count)                                                                                    \
  	physx::shdfnd::ScopedPointer<type> var;                                                                            \
  	{                                                                                                                  \
  		uint32_t size = sizeof(type) * (count);                                                                        \
  		var.mOwned = size > 1024;                                                                                      \
  		if(var.mOwned)                                                                                                 \
  			var.mPointer = reinterpret_cast<type*>(physx::shdfnd::TempAllocator().allocate(size, __FILE__, __LINE__)); \
  		else                                                                                                           \
  			var.mPointer = reinterpret_cast<type*>(PxAlloca(size));                                                    \
  	}
  #endif
  #endif // #ifndef PSFOUNDATION_PSALLOCA_H
  