tetrees/Plugins/Wwise/ThirdParty/include/AK/Tools/Common/AkKeyDef.h

/*******************************************************************************
The content of this file includes portions of the AUDIOKINETIC Wwise Technology
released in source code form as part of the SDK installer package.

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  Copyright (c) 2023 Audiokinetic Inc.
*******************************************************************************/

#ifndef _KEYDEF_H_
#define _KEYDEF_H_

#include <AK/Tools/Common/AkArray.h> //For ArrayPoolDefault

template <class T_KEY, class T_ITEM> 
struct MapStruct
{
	T_KEY	key; 
	T_ITEM	item;
	bool operator ==(const MapStruct& in_Op) const
	{
		return ( (key == in_Op.key) /*&& (item == in_Op.item)*/ );
	}

	void Transfer(MapStruct<T_KEY, T_ITEM>& in_rSource)
	{
		key = in_rSource.key;
		item.Transfer(in_rSource.item); //transfer ownership of resources.
	}
};


// A helper struct that can be used as a T_ITEM in an CAkKeyArray, when you need to only preform a shallow copy
//	 on the data that you are referencing.  For example if you wanted to to use an AkArray type.
// NOTE: AllocData() and FreeData() must be explicitly called, or else pData can be manually Alloc'd/Free'd.
template < typename T_KEY, typename T_DATA, class T_ALLOC = ArrayPoolDefault >
struct AkKeyDataPtrStruct: public T_ALLOC
{
	AkKeyDataPtrStruct(): pData(NULL) {}
	AkKeyDataPtrStruct(T_KEY in_key): key(in_key), pData(NULL) {}

	T_KEY	key;
	T_DATA* pData;
	bool operator ==(const AkKeyDataPtrStruct<T_KEY,T_DATA>& in_Op) const
	{
		return ( key == in_Op.key );
	}

	bool AllocData()
	{
		AKASSERT( !pData );
		pData = (T_DATA*) T_ALLOC::Alloc( sizeof( T_DATA ));
		if (pData)
		{
			AkPlacementNew( pData ) T_DATA();
			return true;
		}
		return false;
	}

	void FreeData()
	{
		if( pData )
		{
			pData->~T_DATA();
			T_ALLOC::Free(pData);
			pData = NULL;
		}
	}

	static AkForceInline T_KEY& Get( AkKeyDataPtrStruct<T_KEY, T_DATA>& in_val ) { return in_val.key; }
};

#endif //_KEYDEF_H_