API Quick Reference Guide

  • 2020
  • 09/30/2019
  • Public Content
Contents

iwiRotate

Syntax
typedef struct _IwiRotateParams { int reserved; } IwiRotateParams;
static IW_INLINE void iwiRotate_SetDefaultParams( IwiRotateParams *pParams )
IW_DECL(IppStatus) iwiRotate( const IwiImage *pSrcImage, IwiImage *pDstImage, double angle, IppiInterpolationType interpolation, const IwiRotateParams *pAuxParams, IppiBorderType border, const Ipp64f *pBorderVal, const IwiTile *pTile );
Parameters
pSrcImage
Pointer to the source image.
pDstImage
Pointer to the destination image.
angle
Angle of clockwise rotation in degrees.
interpolation
Interpolation method. The supported values are
ippNearest
,
ippLinear
, and
ippCubic
.
pAuxParams
Pointer to the auxiliary parameters structure. If
NULL
, default parameters are used.
border
Extrapolation algorithm for out of image pixels processing. Supported values:
ippBorderConst
Values of all border pixels are set to a constant.
ippBorderRepl
Border is replicated from the edge pixels.
ippBorderTransp
Out of image pixels are not processed.
ippBorderInMem
Border is obtained from the source image pixels in memory.
pBorderVal
Pointer to an array of values to assign to pixels of the constant border, one element of the array for each channel of the image. This parameter is applicable only to the
ippBorderConst
border type and can be
NULL
for other border types.
pTile
Pointer to the
IwiTile
structure for tiling. If
NULL
, the whole image is processed.
Auxiliary Arguments
Argument
Default Value
Description
reserved
0
Reserved value.
Description
This function performs rotation of the image around (0,0). This is a simpler version of the
iwiWarpAffine
function designed specifically for rotation.
This function supports the following features:
Feature
Support
Internal threading
No
Manual tiling
No
IwiTile
simple tiling
Yes
IwiTile
pipeline tiling
No
Return Values
ippStsInterpolationErr
The
interpolation
value is illegal.
ippStsDataTypeErr
The
dataType
value is illegal.
ippStsNumChannelsErr
The
channels
value is illegal.
ippStsBorderErr
The
border
value is illegal.
ippStsNotSupportedModeErr
The selected combination of parameters' values is not supported.
ippStsNoMemErr
Failed to allocate memory.
ippStsSizeErr
Values of the
size
fields are illegal.
ippStsInplaceModeNotSupportedErr
In-place operation is not supported:
pSrcImage
is equal to
pDstImage
.
ippStsNullPtrErr
At least one of the pointers (except
pBorderVal
and
pTile
) is
NULL
.
ippStsNoErr
No errors.
ippStsNoOperation
Warning: width and/or height of the image is equal to zero.
ippStsWrongIntersectQuadr
Warning: transformed source image has no intersection with the destination image.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804