Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

SubCRev

Subtracts each element of a vector from a constant value.

Syntax

Case 1. Not-in-place operations on floating point data.
IppStatus ippsSubCRev_32f(const Ipp32f*
pSrc
, Ipp32f
val
, Ipp32f*
pDst
, int
len
);
IppStatus ippsSubCRev_64f(const Ipp64f*
pSrc
, Ipp64f
val
, Ipp64f*
pDst
, int
len
);
IppStatus ippsSubCRev_32fc(const Ipp32fc*
pSrc
, Ipp32fc
val
, Ipp32fc*
pDst
, int
len
);
IppStatus ippsSubCRev_64fc(const Ipp64fc*
pSrc
, Ipp64fc
val
, Ipp64fc*
pDst
, int
len
);
Case 2. Not-in-place operations on integer data.
IppStatus ippsSubCRev_8u_Sfs(const Ipp8u*
pSrc
, Ipp8u
val
, Ipp8u*
pDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16u_Sfs(const Ipp16u*
pSrc
, Ipp16u
val
, Ipp16u*
pDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16s_Sfs(const Ipp16s*
pSrc
, Ipp16s
val
, Ipp16s*
pDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_32s_Sfs(const Ipp32s*
pSrc
, Ipp32s
val
, Ipp32s*
pDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16sc_Sfs(const Ipp16sc*
pSrc
, Ipp16sc
val
, Ipp16sc*
pDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_32sc_Sfs(const Ipp32sc*
pSrc
, Ipp32sc
val
, Ipp32sc*
pDst
, int
len
, int
scaleFactor
);
Case 3. In-place operations on floating point data.
IppStatus ippsSubCRev_32f_I(Ipp32f
val
, Ipp32f*
pSrcDst
, int
len
);
IppStatus ippsSubCRev_64f_I(Ipp64f
val
, Ipp64f*
pSrcDst
, int
len
);
IppStatus ippsSubCRev_32fc_I(Ipp32fc
val
, Ipp32fc*
pSrcDst
, int
len
);
IppStatus ippsSubCRev_64fc_I(Ipp64fc
val
, Ipp64fc*
pSrcDst
, int
len
);
Case 4. In-place operations on integer data.
IppStatus ippsSubCRev_8u_ISfs(Ipp8u
val
, Ipp8u*
pSrcDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16u_ISfs(Ipp16u
val
, Ipp16u*
pSrcDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16s_ISfs(Ipp16s
val
, Ipp16s*
pSrcDst
, int len, int
scaleFactor
);
IppStatus ippsSubCRev_32s_ISfs(Ipp32s
val
, Ipp32s*
pSrcDst
, int
len
, int
scaleFactor
);
IppStatus ippsSubCRev_16sc_ISfs(Ipp16sc
val
, Ipp16sc*
pSrcDst
, int len, int
scaleFactor
);
IppStatus ippsSubCRev_32sc_ISfs(Ipp32sc
val
, Ipp32sc*
pSrcDst
, int
len
, int
scaleFactor
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
val
Scalar value from which vector elements are subtracted.
pSrc
Pointer to the source vector.
pDst
Pointer to the destination vector.
pSrcDst
Pointer to the vector whose elements are to be subtracted from the value
val
in case of the in-place operation. The destination vector which stores the result of the subtraction
val
-
pSrcDst
[n]
.
len
Number of elements in the vector
scaleFactor
Scale factor, refer to Integer Scaling.
Description
This function subtracts each element of the vector
pSrc
from a value
val
and stores the result in
pDst
.
The in-place flavors of
ippsSubCRev
subtract each element of the vector
pSrcDst
from a value
val
and store the result in
pSrcDst
.
Functions with
Sfs
suffixes perform scaling of the result value in accordance with the
scaleFactor
value. If the output value exceeds the data range, the result becomes saturated.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when the
pSrc
,
pDst
,
or pSrcDst
pointer is
NULL
.
ippStsSizeErr
Indicates an error when
len
is less than or equal to 0.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.