_ak_vector_value_ramp_8h

Wwise SDK 2021.1.14

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 released in source code form as part of the SDK installer package.

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   Version: v2021.1.14  Build: 6590

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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_