Table of Contents

Wwise SDK 2019.2.1
AkVectorValueRamp.h
1 /*******************************************************************************
2 The content of this file includes portions of the AUDIOKINETIC Wwise Technology
3 released in source code form as part of the SDK installer package.
4 
5 Commercial License Usage
6 
7 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology
8 may use this file in accordance with the end user license agreement provided
9 with the software or, alternatively, in accordance with the terms contained in a
10 written agreement between you and Audiokinetic Inc.
11 
12 Apache License Usage
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14 Alternatively, this file may be used under the Apache License, Version 2.0 (the
15 "Apache License"); you may not use this file except in compliance with the
16 Apache License. You may obtain a copy of the Apache License at
17 http://www.apache.org/licenses/LICENSE-2.0.
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20 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
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23 
24  Version: <VERSION> Build: <BUILDNUMBER>
25  Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc.
26 *******************************************************************************/
27 
28 #ifndef _AK_VECTORVALUERAMP_H_
29 #define _AK_VECTORVALUERAMP_H_
30 
31 #include <AK/SoundEngine/Common/AkSimd.h>
32 
33 /// Tool for computing a ramp using SIMD types.
34 /// Implementation using AKSIMD_V4F32
36 {
37 public:
38 
39  AkForceInline AKSIMD_V4F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames )
40  {
41  const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames;
42  const AkReal32 f4xInc = 4.f*fIncrement;
43  vIncrement = AKSIMD_LOAD1_V4F32( f4xInc);
44  AK_ALIGN_SIMD( AkReal32 fVal[4] );
45  fVal[0] = in_fStartValue;
46  fVal[1] = fVal[0] + fIncrement;
47  fVal[2] = fVal[1] + fIncrement;
48  fVal[3] = fVal[2] + fIncrement;
49  vValueRamp = AKSIMD_LOAD_V4F32( fVal );
50  return vValueRamp;
51  }
52 
53  AkForceInline AKSIMD_V4F32 Tick( )
54  {
55  vValueRamp = AKSIMD_ADD_V4F32( vValueRamp, vIncrement );
56  return vValueRamp;
57  }
58 
59 private:
60  AKSIMD_V4F32 vIncrement;
61  AKSIMD_V4F32 vValueRamp;
62 };
63 
64 
65 #ifdef AKSIMD_V2F32_SUPPORTED
66 /// Tool for computing a ramp using SIMD types.
67 /// Implementation using AKSIMD_V2F32
68 class CAkVectorValueRampV2
69 {
70 public:
71 
72  AkForceInline AKSIMD_V2F32 Setup( AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames )
73  {
74  const AkReal32 fIncrement = (in_fStopValue-in_fStartValue)/in_uNumFrames;
75  const AkReal32 f2xInc = 2.f*fIncrement;
76  vIncrement = AKSIMD_SET_V2F32( f2xInc );
77  AKSIMD_BUILD_V2F32( const AKSIMD_V2F32 vStartOffset, 0.f, fIncrement );
78  AKSIMD_V2F32 l_vValueRamp = AKSIMD_SET_V2F32( in_fStartValue );
79  l_vValueRamp = AKSIMD_ADD_V2F32( l_vValueRamp, vStartOffset );
80  vValueRamp = l_vValueRamp;
81  return l_vValueRamp;
82  }
83 
84  AkForceInline AKSIMD_V2F32 Tick( )
85  {
86  vValueRamp = AKSIMD_ADD_V2F32( vValueRamp, vIncrement );
87  return vValueRamp;
88  }
89 
90 private:
91  AKSIMD_V2F32 vIncrement;
92  AKSIMD_V2F32 vValueRamp;
93 };
94 #endif
95 
96 // By default, CAkVectorValueRamp uses the V4 implementation.
98 
99 #endif //_AK_VECTORVALUERAMP_H_
AkForceInline AKSIMD_V4F32 Tick()
AkForceInline AKSIMD_V4F32 Setup(AkReal32 in_fStartValue, AkReal32 in_fStopValue, AkUInt32 in_uNumFrames)