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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.


/** \file Allocator.h
	This file together with Callbacks.h define most memory management interfaces for internal use.
*/

/** \cond HIDDEN_SYMBOLS */
#pragma once

#include "NvCloth/ps/PsArray.h"
#include "NvCloth/ps/PsHashMap.h"
#include "NvCloth/Callbacks.h"
#include "NvCloth/ps/PsAlignedMalloc.h"

namespace nv
{
namespace cloth
{

void* allocate(size_t);
void deallocate(void*);


/* templated typedefs for convenience */

template <typename T>
struct Vector
{
	typedef ps::Array<T, ps::NonTrackingAllocator> Type;
};

template <typename T, size_t alignment>
struct AlignedVector
{
	typedef ps::Array<T, ps::AlignedAllocator<alignment, ps::NonTrackingAllocator> > Type;
};

template <class Key, class Value, class HashFn = ps::Hash<Key> >
struct HashMap
{
	typedef ps::HashMap<Key, Value, HashFn, ps::NonTrackingAllocator> Type;
};

struct NvClothOverload{};
#define NV_CLOTH_NEW(T) new (__FILE__, __LINE__, nv::cloth::NvClothOverload()) T
#define NV_CLOTH_ALLOC(n, name) GetNvClothAllocator()->allocate(n, name, __FILE__, __LINE__)
#define NV_CLOTH_FREE(x) GetNvClothAllocator()->deallocate(x)
#define NV_CLOTH_DELETE(x) delete x

} // namespace cloth
} // namespace nv

//new/delete operators need to be declared in global scope
template <typename T>
PX_INLINE void* operator new(size_t size, const char* fileName,
                             typename nv::cloth::ps::EnableIfPod<T, int>::Type line, nv::cloth::NvClothOverload overload)
{
	PX_UNUSED(overload);
	return GetNvClothAllocator()->allocate(size, "<TypeName Unknown>", fileName, line);
}

template <typename T>
PX_INLINE void* operator new [](size_t size, const char* fileName,
                                typename nv::cloth::ps::EnableIfPod<T, int>::Type line, nv::cloth::NvClothOverload overload)
{
	PX_UNUSED(overload);
	return GetNvClothAllocator()->allocate(size, "<TypeName Unknown>", fileName, line);
}

// If construction after placement new throws, this placement delete is being called.
template <typename T>
PX_INLINE void operator delete(void* ptr, const char* fileName,
                               typename nv::cloth::ps::EnableIfPod<T, int>::Type line, nv::cloth::NvClothOverload overload)
{
	PX_UNUSED(fileName);
	PX_UNUSED(line);
	PX_UNUSED(overload);

	return GetNvClothAllocator()->deallocate(ptr);
}

// If construction after placement new throws, this placement delete is being called.
template <typename T>
PX_INLINE void operator delete [](void* ptr, const char* fileName,
                                  typename nv::cloth::ps::EnableIfPod<T, int>::Type line, nv::cloth::NvClothOverload overload)
{
	PX_UNUSED(fileName);
	PX_UNUSED(line);
	PX_UNUSED(overload);

	return GetNvClothAllocator()->deallocate(ptr);
}

namespace nv
{
namespace cloth
{

class UserAllocated
{
  public:
	PX_INLINE void* operator new(size_t size, const char* fileName, int line, NvClothOverload overload)
	{
		PX_UNUSED(overload);
		return GetNvClothAllocator()->allocate(size, "<TypeName Unknown>", fileName, line);
	}
	PX_INLINE void* operator new [](size_t size, const char* fileName, int line, NvClothOverload overload)
	{
		PX_UNUSED(overload);
		return GetNvClothAllocator()->allocate(size, "<TypeName Unknown>", fileName, line);
	}

	// placement delete
	PX_INLINE void operator delete(void* ptr, const char* fileName, int line, NvClothOverload overload)
	{
		PX_UNUSED(fileName);
		PX_UNUSED(line);
		PX_UNUSED(overload);
		GetNvClothAllocator()->deallocate(ptr);
	}
	PX_INLINE void operator delete [](void* ptr, const char* fileName, int line, NvClothOverload overload)
	{
		PX_UNUSED(fileName);
		PX_UNUSED(line);
		PX_UNUSED(overload);
		GetNvClothAllocator()->deallocate(ptr);
	} 
	PX_INLINE void operator delete(void* ptr)
	{
		return GetNvClothAllocator()->deallocate(ptr);
	}
	PX_INLINE void operator delete [](void* ptr)
	{
		return GetNvClothAllocator()->deallocate(ptr);
	}
};

} // namespace cloth
} // namespace nv
/** \endcond */