_ak_mixer_input_map_8h

Wwise SDK 2021.1.14

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   Version: v2021.1.14  Build: 6590

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 #ifndef _AK_MIXERINPUTMAP_H_

 #define _AK_MIXERINPUTMAP_H_

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

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

 #include <AK/Tools/Common/AkArray.h>

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

 /// Collection class to manage inputs in mixer plugins.

 /// The inputs are identified by their context. The type of data attached to it is the template argument USER_DATA.

 /// The collection performs allocation/deallocation of user data via AK_PLUGIN_NEW/DELETE().

 /// Usage

 /// 

 /// // Init 

 /// AkMixerInputMap<void*, MyStruct> m_mapInputs;

 /// m_mapInputs.Init( in_pAllocator );  // in_pAllocator passed at plugin init.

 ///

 /// // Add an input.

 /// m_mapInputs.AddInput( in_pInput );  // void * in_pInput 

 /// 

 /// // Find an input

 /// MyStruct * pInput = m_mapInputs.Exists( in_pInputContext ); // void * in_pInputContext passed to ConsumeInput()

 ///

 /// // Iterate through inputs.

 /// AkMixerInputMap<MyStruct>::Iterator it = m_mapInputs.End();

 /// while ( it != m_mapInputs.End() )

 /// {

 ///     MyStruct * pInput = (*it).pUserData;

 ///     ...

 ///     ++it;

 /// }

 /// Structure of an entry in the AkMixerInputMap map.

 template <class KEY, class USER_DATA>

 struct AkInputMapSlot

 {

     KEY             key;        /// Key.

     USER_DATA *     pUserData;  /// User data. Here we have a buffer. Other relevant info would be the game object position and input parameters of the previous frame.

     AkInputMapSlot() : key( NULL ), pUserData( NULL ) {}

     bool operator ==(const AkInputMapSlot& in_Op) const { return (key == in_Op.key); }

 };

 /// AkMixerInputMap: Map of inputs (identified with AK::IAkMixerInputContext *) to user-defined blocks of data.

 template <class KEY, class USER_DATA>

 class AkMixerInputMap : public AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>

 {

 public:

     typedef AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator> BaseClass;

     /// Returns the user data associated with given input context. Returns NULL if none found.

     USER_DATA * Exists( KEY in_key )

     {

         typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator it = FindEx(in_key);

         return ( it != BaseClass::End() ) ? (*it).pUserData : NULL;

     }

     /// Adds an input with new user data.

     USER_DATA * AddInput(KEY in_key)

     {

         typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator it = FindEx(in_key);

         if ( it != BaseClass::End() )

             return (*it).pUserData;

         else

         {

             AkInputMapSlot<KEY, USER_DATA> * pSlot = AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::AddLast();

             if ( pSlot )

             {

                 pSlot->pUserData = AK_PLUGIN_NEW( AkPluginArrayAllocator::GetAllocator(), USER_DATA );

                 if ( pSlot->pUserData )

                 {

                     pSlot->key = in_key;

                     return pSlot->pUserData;

                 }

                 BaseClass::RemoveLast();

             }

         }

         return NULL;

     }

     /// Removes an input and destroys its associated user data.

     bool RemoveInput(KEY in_key)

     {

         typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator it = FindEx( in_key );

         if ( it != BaseClass::End() )

         {

             AKASSERT( (*it).pUserData );

             AK_PLUGIN_DELETE( AkPluginArrayAllocator::GetAllocator(), (*it).pUserData );

             BaseClass::EraseSwap( it );

             return true;

         }

         return false;

     }

     /// Erase the specified iterator in the array. but it does not guarantee the ordering in the array.

     typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator EraseSwap(typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator& in_rIter)

     {

         if ((*in_rIter).pUserData)

         {

             AK_PLUGIN_DELETE(AkPluginArrayAllocator::GetAllocator(), (*in_rIter).pUserData);

         }

         return BaseClass::EraseSwap(in_rIter);

     }

     /// Terminate array.

     void Term()

     {

         if ( BaseClass::m_pItems )

         {

             RemoveAll();

             AkPluginArrayAllocator::Free( BaseClass::m_pItems );

             BaseClass::m_pItems = 0;

             BaseClass::m_ulReserved = 0;

         }

     }

     /// Finds an item in the array.

     typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator FindEx( KEY in_key ) const

     {

         AkInputMapSlot<KEY, USER_DATA> mapSlot;

         mapSlot.key = in_key;

         return BaseClass::FindEx( mapSlot );

     }

     /// Removes and destroys all items in the array.

     void RemoveAll()

     {

         for ( typename AkArray<AkInputMapSlot<KEY, USER_DATA>, const AkInputMapSlot<KEY, USER_DATA>&, AkPluginArrayAllocator>::Iterator it = BaseClass::Begin(), itEnd = BaseClass::End(); it != itEnd; ++it )

         {

             AKASSERT( (*it).pUserData );

             AK_PLUGIN_DELETE( AkPluginArrayAllocator::GetAllocator(), (*it).pUserData );

             (*it).~AkInputMapSlot();

         }

         BaseClass::m_uLength = 0;

     }

 };

 #endif // _AK_MIXERINPUTMAP_H_

AK_PLUGIN_DELETE

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

Definition: IAkPluginMemAlloc.h:180

AkPluginArrayAllocator::GetAllocator

AkForceInline AK::IAkPluginMemAlloc * GetAllocator()

Definition: IAkPluginMemAlloc.h:216

AkMixerInputMap::Term

void Term()

Terminate array.

Definition: AkMixerInputMap.h:134

AkMixerInputMap::RemoveAll

void RemoveAll()

Removes and destroys all items in the array.

Definition: AkMixerInputMap.h:154

AkMixerInputMap::RemoveInput

bool RemoveInput(KEY in_key)

Removes an input and destroys its associated user data.

Definition: AkMixerInputMap.h:110

AK_PLUGIN_NEW

#define AK_PLUGIN_NEW(_allocator, _what)

Definition: IAkPluginMemAlloc.h:125

AkArray

Specific implementation of array

Definition: AkArray.h:200

NULL

#define NULL

Definition: AkTypes.h:47

AkMixerInputMap::BaseClass

AkArray< AkInputMapSlot< KEY, USER_DATA >, const AkInputMapSlot< KEY, USER_DATA > &, AkPluginArrayAllocator > BaseClass

Definition: AkMixerInputMap.h:77

AkArray< AkInputMapSlot< KEY, USER_DATA >, const AkInputMapSlot< KEY, USER_DATA > &, AkPluginArrayAllocator >::RemoveLast

void RemoveLast()

Removes the last item from the array.

Definition: AkArray.h:524

AkMixerInputMap::Exists

USER_DATA * Exists(KEY in_key)

Returns the user data associated with given input context. Returns NULL if none found.

Definition: AkMixerInputMap.h:80

AkMixerInputMap::AddInput

USER_DATA * AddInput(KEY in_key)

Adds an input with new user data.

Definition: AkMixerInputMap.h:87

AkInputMapSlot

Structure of an entry in the AkMixerInputMap map.

Definition: AkMixerInputMap.h:64

AKASSERT

#define AKASSERT(Condition)

Definition: AkAssert.h:76

IAkPluginMemAlloc.h

AkArray< AkInputMapSlot< KEY, USER_DATA >, const AkInputMapSlot< KEY, USER_DATA > &, AkPluginArrayAllocator >::End

Iterator End() const

Returns the iterator to the end of the array

Definition: AkArray.h:294

AkArray.h

AkMixerInputMap::EraseSwap

AkArray< AkInputMapSlot< KEY, USER_DATA >, const AkInputMapSlot< KEY, USER_DATA > &, AkPluginArrayAllocator >::Iterator EraseSwap(typename AkArray< AkInputMapSlot< KEY, USER_DATA >, const AkInputMapSlot< KEY, USER_DATA > &, AkPluginArrayAllocator >::Iterator &in_rIter)

Erase the specified iterator in the array. but it does not guarantee the ordering in the array.

Definition: AkMixerInputMap.h:124

AkInputMapSlot::AkInputMapSlot

AkInputMapSlot()

User data. Here we have a buffer. Other relevant info would be the game object position and input par...

Definition: AkMixerInputMap.h:68

AkTypes.h

AkPluginArrayAllocator

Definition: IAkPluginMemAlloc.h:200

AkInputMapSlot::key

KEY key

Definition: AkMixerInputMap.h:65