_ak_f_x_parameter_change_handler_8h

Wwise SDK 2023.1.3

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 released in source code form as part of the SDK installer package.
  
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 #ifndef _AKFXPARAMETERCHANGEHANDLER_H_
 #define _AKFXPARAMETERCHANGEHANDLER_H_
  
 #include <AK/SoundEngine/Common/AkTypes.h>
 #include <AK/Tools/Common/AkAssert.h>
 #include <AK/Tools/Common/AkPlatformFuncs.h>
  
 /// Can be used to track individual parameter changes to avoid costly computations when they remain constant
 /// This class is designed to use only the lower bit information of the parameter IDs
 namespace AK
 {
  
     template <AkUInt32 T_MAXNUMPARAMS> 
     class AkFXParameterChangeHandler
     {
     public:
  
         inline AkFXParameterChangeHandler()
         {
             ResetAllParamChanges( );
         }
  
         inline void SetParamChange( AkPluginParamID in_ID )
         {
             AKASSERT( in_ID <= T_MAXNUMPARAMS );
             const AkUInt32 uByteIndex = in_ID/8;
             const AkUInt32 uBitMask = 1<<(in_ID-uByteIndex*8);
             m_uParamBitArray[uByteIndex] |= uBitMask;
         }
  
         inline bool HasChanged( AkPluginParamID in_ID )
         {
             AKASSERT( in_ID <= T_MAXNUMPARAMS );
             const AkUInt32 uByteIndex = in_ID/8;
             const AkUInt32 uBitMask = 1<<(in_ID-uByteIndex*8);
             return (m_uParamBitArray[uByteIndex] & uBitMask) > 0;
         }
  
         inline bool HasAnyChanged()
         {
             AkUInt32 uByteIndex = 0;
             do
             {
                 if ( m_uParamBitArray[uByteIndex] > 0 )
                     return true;
                 ++uByteIndex;
             } while (uByteIndex < (((T_MAXNUMPARAMS) + ((8)-1)) & ~((8)-1))/8 );
             return false;
         }
  
         inline void ResetParamChange( AkPluginParamID in_ID )
         {
             AKASSERT( in_ID <= T_MAXNUMPARAMS );
             const AkUInt32 uByteIndex = in_ID/8;
             const AkUInt32 uBitMask = 1<<(in_ID-uByteIndex*8);
             m_uParamBitArray[uByteIndex] &= ~uBitMask;
         }
  
         inline void ResetAllParamChanges( )
         {
             AkZeroMemSmall( m_uParamBitArray, sizeof(m_uParamBitArray) );
         }
  
         inline void SetAllParamChanges( )
         {
             AKPLATFORM::AkMemSet( m_uParamBitArray, 0xFF, sizeof(m_uParamBitArray) );
         }   
  
     protected:
  
         // Minimum storage in bits aligned to next byte boundary
         AkUInt8 m_uParamBitArray[(((T_MAXNUMPARAMS) + ((8)-1)) & ~((8)-1))/8]; 
  
     };
  
 } // namespace AK
  
 #endif // _AKFXPARAMETERCHANGEHANDLER_H_