_i_ak_plugin_mem_alloc_8h

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Wwise SDK 2022.1.9

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 /// \file

 /// Memory allocation macros for Wwise sound engine plug-ins.

 #ifndef _IAKPLUGINMEMALLOC_H_

 #define _IAKPLUGINMEMALLOC_H_

 #include <AK/SoundEngine/Common/AkTypes.h>

 #include <AK/SoundEngine/Common/AkMemoryMgr.h>

 namespace AK

 {

     /// Interface to memory allocation

     /// \akcaution SDK users should never call these function directly, but use memory allocation macros instead. \endakcaution

     /// \sa

     /// - \ref fx_memory_alloc

     class IAkPluginMemAlloc

     {

     protected:

         /// Virtual destructor on interface to avoid warnings.

         virtual ~IAkPluginMemAlloc(){}

     public:

         /// Allocate memory.

         /// \return A pointer to the newly-allocated memory.

         /// \sa

         /// - \ref fx_memory_alloc

         virtual void * Malloc(

             size_t  in_uSize,               ///< Allocation size in bytes

             const char* in_pszFile,         ///< Allocation file name (for tracking purposes, unused in Release)

             AkUInt32        in_uLine        ///< Allocation line number (for tracking purposes, unused in Release)

             ) = 0;

         /// Free allocated memory.

         /// \sa

         /// - \ref fx_memory_alloc

         virtual void Free(

             void *  in_pMemAddress          ///< Allocated memory start address         

             ) = 0;

         /// Allocate memory.

         /// \return A pointer to the newly-allocated memory.

         /// \sa

         /// - \ref fx_memory_alloc

         virtual void * Malign(

             size_t  in_uSize,               ///< Allocation size in bytes

             size_t  in_uAlignment,          ///< Required alignment in bytes

             const char* in_pszFile,         ///< Allocation file name (for tracking purposes, unused in Release)

             AkUInt32        in_uLine        ///< Allocation line number (for tracking purposes, unused in Release)

             ) = 0;

         /// Reallocated memory.

         /// \return A pointer to the reallocated memory.

         /// \sa

         /// - \ref fx_memory_alloc

         virtual void * Realloc(

             void *  in_pMemAddress,         ///< Allocated memory start address

             size_t  in_uSize,               ///< Allocation size in bytes

             const char* in_pszFile,         ///< Allocation file name (for tracking purposes, unused in Release)

             AkUInt32        in_uLine        ///< Allocation line number (for tracking purposes, unused in Release)

             ) = 0;

         /// Reallocated memory.

         /// \return A pointer to the reallocated memory.

         /// \sa

         /// - \ref fx_memory_alloc

         virtual void * ReallocAligned(

             void *  in_pMemAddress,         ///< Allocated memory start address

             size_t  in_uSize,               ///< Allocation size in bytes

             size_t  in_uAlignment,          ///< Required alignment in bytes

             const char* in_pszFile,         ///< Allocation file name (for tracking purposes, unused in Release)

             AkUInt32        in_uLine        ///< Allocation line number (for tracking purposes, unused in Release)

             ) = 0;

     };

 }

     AkForceInline void * operator</span> new( size_t size, AK::IAkPluginMemAlloc * in_pAllocator, const char * szFile, AkUInt32 ulLine) throw()

     {

         return in_pAllocator->Malloc( size, szFile, ulLine );

     }

     AkForceInline void* operator</span> new(size_t size, AK::IAkPluginMemAlloc* in_pAllocator) throw()

     {

         return in_pAllocator->Malloc(size, NULL, 0);

     }

     AkForceInline void operator</span> delete( void *, AK::IAkPluginMemAlloc *, const char *, AkUInt32 ) throw() {}

     AkForceInline void operator</span> delete( void *, AK::IAkPluginMemAlloc * ) throw() {}

     /// Macro used to allocate objects.

     /// \param _allocator Memory allocator interface.

     /// \param _what Desired object type.

     /// \return A pointer to the newly-allocated object.

     /// \aknote Use AK_PLUGIN_DELETE() for memory allocated with this macro. \endaknote

     /// \sa

     /// - \ref fx_memory_alloc

     /// - AK_PLUGIN_DELETE()

     #define AK_PLUGIN_NEW( _allocator, _what )                          new( ( _allocator ), __FILE__, __LINE__ ) _what

     /// Macro used to allocate memory

     /// \param _allocator Memory allocator interface.

     /// \param _size Requested size in bytes.

     /// \return A void pointer to the the allocated memory.

     /// \aknote Use AK_PLUGIN_FREE() for memory allocated with this macro. \endaknote

     /// \sa

     /// - \ref fx_memory_alloc

     /// - AK_PLUGIN_FREE()  

     #define AK_PLUGIN_ALLOC( _allocator, _size )                        ( _allocator )->Malloc( ( _size ), __FILE__, __LINE__ )

     /// Macro used to allocate memory with an alignment

     /// \param _allocator Memory allocator interface.

     /// \param _size Requested size in bytes.

     /// \param _align Requested alignment of allocation

     /// \return A void pointer to the the allocated memory.

     /// \aknote Use AK_PLUGIN_FREE() for memory allocated with this macro. \endaknote

     /// \sa

     /// - \ref fx_memory_alloc

     /// - AK_PLUGIN_FREE()  

     #define AK_PLUGIN_ALLOC_ALIGN( _allocator, _size, _align )          ( _allocator )->Malign( ( _size ), ( _align ), __FILE__, __LINE__ )

     /// Macro used to reallocate memory

     /// \param _allocator Memory allocator interface.

     /// \param _pmem Start of allocated memory.

     /// \param _size Requested size in bytes.

     /// \return A void pointer to the the reallocated memory.

     /// \aknote Use AK_PLUGIN_FREE() for memory allocated with this macro. \endaknote

     /// \sa

     /// - \ref fx_memory_alloc

     /// - AK_PLUGIN_FREE()

     #define AK_PLUGIN_REALLOC( _allocator, _pmem, _size )   ( _allocator )->Realloc( ( _pmem ), ( _size ), __FILE__, __LINE__ )

     /// Macro used to reallocate memory with an alignment

     /// \param _allocator Memory allocator interface.

     /// \param _pmem Start of allocated memory.

     /// \param _size Requested size in bytes.

     /// \param _align Requested alignment of allocation

     /// \return A void pointer to the the reallocated memory.

     /// \aknote Use AK_PLUGIN_FREE() for memory allocated with this macro. \endaknote

     /// \sa

     /// - \ref fx_memory_alloc

     /// - AK_PLUGIN_FREE()

     #define AK_PLUGIN_REALLOC_ALIGN( _allocator, _pmem, _size, _align ) ( _allocator )->ReallocAligned( ( _pmem ), ( _size ), ( _align ), __FILE__, __LINE__ )

 /// Macro used to delete objects.

 /// \param in_pAllocator Memory allocator interface.

 /// \param in_pObject A pointer to the allocated object.

 /// \sa

 /// - \ref fx_memory_alloc

 /// - AK_PLUGIN_NEW()

 template <class T>

 AkForceInline void AK_PLUGIN_DELETE( AK::IAkPluginMemAlloc * in_pAllocator, T * in_pObject )

 {

     if ( in_pObject )

     {

         in_pObject->~T();

         in_pAllocator->Free( in_pObject );

     }

 }

 /// Macro used to free memory.

 /// \param _allocator Memory allocator interface.

 /// \param _pvmem A void pointer to the allocated memory.

 /// \sa

 /// - \ref fx_memory_alloc

 /// - AK_PLUGIN_ALLOC()

 #define AK_PLUGIN_FREE( _allocator, _pvmem )    ( _allocator )->Free( ( _pvmem ) )

 /// Allocator for plugin-friendly arrays (see AkArray).

 /// Usage: Initialize the array with Init(AK::IAkPluginMemAlloc* in_pAllocator), passing it the memory allocator received from the host. Then use normally.

 class AkPluginArrayAllocator

 {

 public:

     AkForceInline AkPluginArrayAllocator() : m_pAllocator(NULL) {}

     AkForceInline void Init(AK::IAkPluginMemAlloc* in_pAllocator) { m_pAllocator = in_pAllocator; }

 protected:

     AkForceInline void* Alloc(size_t in_uSize) { return AK_PLUGIN_ALLOC(m_pAllocator, in_uSize); }

     AkForceInline void* ReAlloc(void* in_pCurrent, size_t in_uOldSize, size_t in_uNewSize) { return AK_PLUGIN_REALLOC(m_pAllocator, in_pCurrent, in_uNewSize); }

     AkForceInline void Free(void* in_pAddress) { AK_PLUGIN_FREE(m_pAllocator, in_pAddress); }

     AkForceInline void TransferMem(void*& io_pDest, AkPluginArrayAllocator& in_src, void* in_pSrc)

     {

         // The expected io_pDest should be NULL here.

         io_pDest = in_pSrc;

         m_pAllocator = in_src.GetAllocator();

     }

     AkForceInline AK::IAkPluginMemAlloc* GetAllocator() { return m_pAllocator; }

 private:

     AK::IAkPluginMemAlloc* m_pAllocator;

 };

 #endif // _IAKPLUGINMEMALLOC_H_