_ak_vector_value_ramp_8h

Wwise SDK 2023.1.9

 /*******************************************************************************
 The content of this file includes portions of the AUDIOKINETIC Wwise Technology
 released in source code form as part of the SDK installer package.
  
 Commercial License Usage
  
 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology
 may use this file in accordance with the end user license agreement provided 
 with the software or, alternatively, in accordance with the terms contained in a
 written agreement between you and Audiokinetic Inc.
  
 Apache License Usage
  
 Alternatively, this file may be used under the Apache License, Version 2.0 (the 
 "Apache License"); you may not use this file except in compliance with the 
 Apache License. You may obtain a copy of the Apache License at 
 http://www.apache.org/licenses/LICENSE-2.0.
  
 Unless required by applicable law or agreed to in writing, software distributed
 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
 OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for
 the specific language governing permissions and limitations under the License.
  
   Copyright (c) 2024 Audiokinetic Inc.
 *******************************************************************************/
  
 #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_