_i_ak_plugin_mem_alloc_8h

Wwise SDK 2024.1.9

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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>
  
 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 new( size_t size, AK::IAkPluginMemAlloc * in_pAllocator, const char * szFile, AkUInt32 ulLine) throw()
     {
         return in_pAllocator->Malloc( size, szFile, ulLine );
     }
  
     AkForceInline void* operator new(size_t size, AK::IAkPluginMemAlloc* in_pAllocator) throw()
     {
         return in_pAllocator->Malloc(size, NULL, 0);
     }
  
     AkForceInline void operator delete( void *, AK::IAkPluginMemAlloc *, const char *, AkUInt32 ) throw() {}
     AkForceInline void operator 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_