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Wwise SDK 2019.1.5
AkSpeakerVolumes.h
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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.
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5 Commercial License Usage
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27 
28 // AkSpeakerVolumes.h
29 
30 /// \file
31 /// Multi-channel volume definitions and services.
32 /// Always associated with an AkChannelConfig. In the case of standard configurations, the volume items ordering
33 /// match the bit ordering in the channel mask, except for the LFE which is skipped and placed at the end of the
34 /// volume array.
35 /// Refer to \ref goingfurther_speakermatrixcallback for an example of how to manipulate speaker volume vectors/matrices.
36 
37 #ifndef _AK_SPEAKER_VOLUMES_H_
38 #define _AK_SPEAKER_VOLUMES_H_
39 
43 
44 namespace AK
45 {
46 /// Multi-channel volume definitions and services.
47 namespace SpeakerVolumes
48 {
49  typedef AkReal32 * VectorPtr; ///< Volume vector. Access each element with the standard bracket [] operator.
50  typedef AkReal32 * MatrixPtr; ///< Volume matrix. Access each input channel vector with AK::SpeakerVolumes::Matrix::GetChannel().
51  typedef const AkReal32 * ConstVectorPtr; ///< Constant volume vector. Access each element with the standard bracket [] operator.
52  typedef const AkReal32 * ConstMatrixPtr; ///< Constant volume matrix. Access each input channel vector with AK::SpeakerVolumes::Matrix::GetChannel().
53 
54  /// Volume vector services.
55  namespace Vector
56  {
57  /// Copy volumes.
58  AkForceInline void Copy( VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels )
59  {
60  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
61  if ( in_uNumChannels )
62  memcpy( in_pVolumesDst, in_pVolumesSrc, in_uNumChannels * sizeof( AkReal32 ) );
63  }
64 
65  /// Copy volumes with gain.
66  AkForceInline void Copy( VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels, AkReal32 in_fGain )
67  {
68  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
69  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
70  {
71  in_pVolumesDst[uChan] = in_pVolumesSrc[uChan] * in_fGain;
72  }
73  }
74 
75  /// Clear volumes.
76  AkForceInline void Zero( VectorPtr in_pVolumes, AkUInt32 in_uNumChannels )
77  {
78  AKASSERT( in_pVolumes || in_uNumChannels == 0 );
79  if ( in_uNumChannels )
80  memset( in_pVolumes, 0, in_uNumChannels * sizeof( AkReal32 ) );
81  }
82 
83  /// Accumulate two volume vectors.
84  AkForceInline void Add( VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels )
85  {
86  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
87  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
88  {
89  in_pVolumesDst[uChan] += in_pVolumesSrc[uChan];
90  }
91  }
92 
93  /// Compute the sum of all components of a volume vector.
94  AkForceInline AkReal32 L1Norm(ConstVectorPtr io_pVolumes, AkUInt32 in_uNumChannels)
95  {
96  AkReal32 total = 0;
97  AKASSERT((io_pVolumes) || in_uNumChannels == 0);
98  for (AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++)
99  {
100  total += io_pVolumes[uChan];
101  }
102 
103  return total;
104  }
105 
106  /// Multiply volume vector with a scalar.
107  AkForceInline void Mul( VectorPtr in_pVolumesDst, const AkReal32 in_fVol, AkUInt32 in_uNumChannels )
108  {
109  AKASSERT( in_pVolumesDst || in_uNumChannels == 0 );
110  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
111  {
112  in_pVolumesDst[uChan] *= in_fVol;
113  }
114  }
115 
116  /// Multiply two volume vectors.
117  AkForceInline void Mul( VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels )
118  {
119  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
120  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
121  {
122  in_pVolumesDst[uChan] *= in_pVolumesSrc[uChan];
123  }
124  }
125 
126  /// Get max for all elements of two volume vectors, independently.
127  AkForceInline void Max( AkReal32 * in_pVolumesDst, const AkReal32 * in_pVolumesSrc, AkUInt32 in_uNumChannels )
128  {
129  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
130  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
131  {
132  in_pVolumesDst[uChan] = AkMax( in_pVolumesDst[uChan], in_pVolumesSrc[uChan] );
133  }
134  }
135 
136  /// Get min for all elements of two volume vectors, independently.
137  AkForceInline void Min( AkReal32 * in_pVolumesDst, const AkReal32 * in_pVolumesSrc, AkUInt32 in_uNumChannels )
138  {
139  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || in_uNumChannels == 0 );
140  for ( AkUInt32 uChan = 0; uChan < in_uNumChannels; uChan++ )
141  {
142  in_pVolumesDst[uChan] = AkMin( in_pVolumesDst[uChan], in_pVolumesSrc[uChan] );
143  }
144  }
145  }
146 
147  /// Volume matrix (multi-in/multi-out channel configurations) services.
148  namespace Matrix
149  {
150  /// Compute size (in bytes) required for given channel configurations.
151  AkForceInline AkUInt32 GetRequiredSize( AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut )
152  {
153  return in_uNumChannelsIn * Vector::GetRequiredSize( in_uNumChannelsOut );
154  }
155 
156  /// Compute size (in number of elements) required for given channel configurations.
157  AkForceInline AkUInt32 GetNumElements( AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut )
158  {
159  return in_uNumChannelsIn * Vector::GetNumElements( in_uNumChannelsOut );
160  }
161 
162  /// Get pointer to volume distribution for input channel in_uIdxChannelIn.
163  AkForceInline VectorPtr GetChannel( MatrixPtr in_pVolumeMx, AkUInt32 in_uIdxChannelIn, AkUInt32 in_uNumChannelsOut )
164  {
165  AKASSERT( in_pVolumeMx );
166  return in_pVolumeMx + in_uIdxChannelIn * Vector::GetNumElements( in_uNumChannelsOut );
167  }
168 
169  /// Get pointer to volume distribution for input channel in_uIdxChannelIn.
170  AkForceInline ConstVectorPtr GetChannel( ConstMatrixPtr in_pVolumeMx, AkUInt32 in_uIdxChannelIn, AkUInt32 in_uNumChannelsOut )
171  {
172  AKASSERT( in_pVolumeMx );
173  return in_pVolumeMx + in_uIdxChannelIn * Vector::GetNumElements( in_uNumChannelsOut );
174  }
175 
176  /// Copy matrix.
177  AkForceInline void Copy( MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut )
178  {
179  AkUInt32 uNumElements = Matrix::GetNumElements( in_uNumChannelsIn, in_uNumChannelsOut );
180  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || uNumElements == 0 );
181  if ( uNumElements )
182  memcpy( in_pVolumesDst, in_pVolumesSrc, uNumElements * sizeof( AkReal32 ) );
183  }
184 
185  /// Copy matrix with gain.
186  AkForceInline void Copy( MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut, AkReal32 in_fGain )
187  {
188  AkUInt32 uNumElements = Matrix::GetNumElements( in_uNumChannelsIn, in_uNumChannelsOut );
189  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || uNumElements == 0 );
190  for ( AkUInt32 uChan = 0; uChan < uNumElements; uChan++ )
191  {
192  in_pVolumesDst[uChan] = in_pVolumesSrc[uChan] * in_fGain;
193  }
194  }
195 
196  /// Clear matrix.
197  AkForceInline void Zero( MatrixPtr in_pVolumes, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut )
198  {
199  AkUInt32 uNumElements = Matrix::GetNumElements( in_uNumChannelsIn, in_uNumChannelsOut );
200  AKASSERT( in_pVolumes || uNumElements == 0 );
201  if ( uNumElements )
202  memset( in_pVolumes, 0, uNumElements * sizeof( AkReal32 ) );
203  }
204 
205  /// Multiply a matrix with a scalar.
206  AkForceInline void Mul( MatrixPtr in_pVolumesDst, const AkReal32 in_fVol, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut )
207  {
208  AkUInt32 uNumElements = Matrix::GetNumElements( in_uNumChannelsIn, in_uNumChannelsOut );
209  AKASSERT( in_pVolumesDst || uNumElements == 0 );
210  for ( AkUInt32 uChan = 0; uChan < uNumElements; uChan++ )
211  {
212  in_pVolumesDst[uChan] *= in_fVol;
213  }
214  }
215 
216  /// Add all elements of two volume matrices, independently.
217  AkForceInline void Add(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
218  {
219  AkUInt32 uNumElements = Matrix::GetNumElements(in_uNumChannelsIn, in_uNumChannelsOut);
220  AKASSERT((in_pVolumesDst && in_pVolumesSrc) || uNumElements == 0);
221  for (AkUInt32 uChan = 0; uChan < uNumElements; uChan++)
222  {
223  in_pVolumesDst[uChan] += in_pVolumesSrc[uChan];
224  }
225  }
226 
227  /// Pointwise Multiply-Add of all elements of two volume matrices.
228  AkForceInline void MAdd(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut, AkReal32 in_fGain)
229  {
230  AkUInt32 uNumElements = Matrix::GetNumElements(in_uNumChannelsIn, in_uNumChannelsOut);
231  AKASSERT((in_pVolumesDst && in_pVolumesSrc) || uNumElements == 0);
232  for (AkUInt32 uChan = 0; uChan < uNumElements; uChan++)
233  {
234  in_pVolumesDst[uChan] += in_pVolumesSrc[uChan] * in_fGain;
235  }
236  }
237 
238  /// Get absolute max for all elements of two volume matrices, independently.
239  AkForceInline void AbsMax(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
240  {
241  AkUInt32 uNumElements = Matrix::GetNumElements( in_uNumChannelsIn, in_uNumChannelsOut );
242  AKASSERT( ( in_pVolumesDst && in_pVolumesSrc ) || uNumElements == 0 );
243  for ( AkUInt32 uChan = 0; uChan < uNumElements; uChan++ )
244  {
245  in_pVolumesDst[uChan] = ((in_pVolumesDst[uChan] * in_pVolumesDst[uChan]) > (in_pVolumesSrc[uChan] * in_pVolumesSrc[uChan])) ? in_pVolumesDst[uChan] : in_pVolumesSrc[uChan];
246  }
247  }
248 
249  /// Get max for all elements of two volume matrices, independently.
250  AkForceInline void Max(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
251  {
252  AkUInt32 uNumElements = Matrix::GetNumElements(in_uNumChannelsIn, in_uNumChannelsOut);
253  AKASSERT((in_pVolumesDst && in_pVolumesSrc) || uNumElements == 0);
254  for (AkUInt32 uChan = 0; uChan < uNumElements; uChan++)
255  {
256  in_pVolumesDst[uChan] = (in_pVolumesDst[uChan] > in_pVolumesSrc[uChan]) ? in_pVolumesDst[uChan] : in_pVolumesSrc[uChan];
257  }
258  }
259  }
260 }
261 }
262 
263 #endif //_AK_SPEAKER_VOLUMES_H_
AkForceInline void Max(AkReal32 *in_pVolumesDst, const AkReal32 *in_pVolumesSrc, AkUInt32 in_uNumChannels)
Get max for all elements of two volume vectors, independently.
AkForceInline void Min(AkReal32 *in_pVolumesDst, const AkReal32 *in_pVolumesSrc, AkUInt32 in_uNumChannels)
Get min for all elements of two volume vectors, independently.
const AkReal32 * ConstMatrixPtr
Constant volume matrix. Access each input channel vector with AK::SpeakerVolumes::Matrix::GetChannel(...
Definition: AkSpeakerVolumes.h:52
AkForceInline void Add(VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels)
Accumulate two volume vectors.
Definition: AkSpeakerVolumes.h:84
AkForceInline AkReal32 L1Norm(ConstVectorPtr io_pVolumes, AkUInt32 in_uNumChannels)
Compute the sum of all components of a volume vector.
Definition: AkSpeakerVolumes.h:94
AkForceInline void Zero(MatrixPtr in_pVolumes, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Clear matrix.
Audiokinetic namespace
AkForceInline void AbsMax(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Get absolute max for all elements of two volume matrices, independently.
AkForceInline AkUInt32 GetRequiredSize(AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Compute size (in bytes) required for given channel configurations.
AkForceInline void Copy(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Copy matrix.
#define AKASSERT(Condition)
Definition: AkAssert.h:69
AkForceInline void Zero(VectorPtr in_pVolumes, AkUInt32 in_uNumChannels)
Clear volumes.
Definition: AkSpeakerVolumes.h:76
#define AkForceInline
Force inlining
Definition: AkTypes.h:62
AkForceInline void Copy(VectorPtr in_pVolumesDst, ConstVectorPtr in_pVolumesSrc, AkUInt32 in_uNumChannels)
Copy volumes.
Definition: AkSpeakerVolumes.h:58
AkForceInline void Mul(MatrixPtr in_pVolumesDst, const AkReal32 in_fVol, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Multiply a matrix with a scalar.
AkReal32 * MatrixPtr
Volume matrix. Access each input channel vector with AK::SpeakerVolumes::Matrix::GetChannel().
Definition: AkSpeakerVolumes.h:50
const AkReal32 * ConstVectorPtr
Constant volume vector. Access each element with the standard bracket [] operator.
Definition: AkSpeakerVolumes.h:51
#define AkMin(x1, x2)
Definition: AkPlatformFuncs.h:94
AkForceInline VectorPtr GetChannel(MatrixPtr in_pVolumeMx, AkUInt32 in_uIdxChannelIn, AkUInt32 in_uNumChannelsOut)
Get pointer to volume distribution for input channel in_uIdxChannelIn.
AkForceInline void MAdd(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut, AkReal32 in_fGain)
Pointwise Multiply-Add of all elements of two volume matrices.
AkForceInline AkUInt32 GetNumElements(AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Compute size (in number of elements) required for given channel configurations.
AkReal32 * VectorPtr
Volume vector. Access each element with the standard bracket [] operator.
Definition: AkSpeakerVolumes.h:49
AkForceInline void Max(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Get max for all elements of two volume matrices, independently.
AkForceInline void Mul(VectorPtr in_pVolumesDst, const AkReal32 in_fVol, AkUInt32 in_uNumChannels)
Multiply volume vector with a scalar.
#define AkMax(x1, x2)
Definition: AkPlatformFuncs.h:93
uint32_t AkUInt32
Unsigned 32-bit integer
Definition: AkTypes.h:78
AkForceInline void Add(MatrixPtr in_pVolumesDst, ConstMatrixPtr in_pVolumesSrc, AkUInt32 in_uNumChannelsIn, AkUInt32 in_uNumChannelsOut)
Add all elements of two volume matrices, independently.
float AkReal32
32-bit floating point
Definition: AkTypes.h:96