_ak_vector_value_ramp_8h

Wwise SDK 2024.1.1

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 released in source code form as part of the SDK installer package.
  
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 #ifndef _AK_VECTORVALUERAMP_H_
 #define _AK_VECTORVALUERAMP_H_
  
 #include <AK/SoundEngine/Common/AkSimd.h>
  
 /// Tool for computing a ramp using SIMD types.
 /// Implementation using AKSIMD_V4F32
 class CAkVectorValueRampV4
 {
 public:
  
     AkForceInline AKSIMD_V4F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames )
     {
         const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames;
         const AkReal32 f4xInc = 4.f*fIncrement;
         vIncrement = AKSIMD_LOAD1_V4F32( f4xInc);
         AK_ALIGN_SIMD( AkReal32 fVal[4] );
         fVal[0] = in_fStartValue;
         fVal[1] = fVal[0] + fIncrement;
         fVal[2] = fVal[1] + fIncrement;
         fVal[3] = fVal[2] + fIncrement;
         vValueRamp = AKSIMD_LOAD_V4F32( fVal );
         return vValueRamp;
     }
  
     AkForceInline AKSIMD_V4F32 Tick( )
     {
         vValueRamp = AKSIMD_ADD_V4F32( vValueRamp, vIncrement );
         return vValueRamp;
     }
  
 private:
     AKSIMD_V4F32 vIncrement;
     AKSIMD_V4F32 vValueRamp;
 };
  
  
 #ifdef AKSIMD_V2F32_SUPPORTED
 /// Tool for computing a ramp using SIMD types.
 /// Implementation using AKSIMD_V2F32
 class CAkVectorValueRampV2
 {
 public:
  
     AkForceInline AKSIMD_V2F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames )
     {
         const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames;
         const AkReal32 f2xInc = 2.f*fIncrement;
         vIncrement = AKSIMD_SET_V2F32( f2xInc );
         AKSIMD_BUILD_V2F32( const AKSIMD_V2F32 vStartOffset, 0.f, fIncrement );
         AKSIMD_V2F32 l_vValueRamp = AKSIMD_SET_V2F32( in_fStartValue );
         l_vValueRamp = AKSIMD_ADD_V2F32( l_vValueRamp, vStartOffset );
         vValueRamp = l_vValueRamp;
         return l_vValueRamp;
     }
  
     AkForceInline AKSIMD_V2F32 Tick( )
     {
         vValueRamp = AKSIMD_ADD_V2F32( vValueRamp, vIncrement );
         return vValueRamp;
     }
  
 private:
     AKSIMD_V2F32 vIncrement;
     AKSIMD_V2F32 vValueRamp;
 };
 #endif
  
 // By default, CAkVectorValueRamp uses the V4 implementation.
 typedef CAkVectorValueRampV4 CAkVectorValueRamp;
  
 #endif //_AK_VECTORVALUERAMP_H_