topic Re:Replacement for ippiRotate_32f_C1R in Intel® Integrated Performance Primitives

Replacement for ippiRotate_32f_C1R

ChristinaLabay — Mon, 05 Apr 2021 18:39:03 GMT

We have recently updated our ippi version, and need to replace ippiRotate_32f_C1R. I have found this post, https://community.intel.com/t5/Intel-Integrated-Performance/How-to-replace-ipp-functions-ippiRotate-32f-C1R-and/td-p/1082539, but the links listed are no longer valid. From my understanding, we will need to use a combination of ippiWarpAffine functions and the ippiRotateTranslate functions. I found a sample document for ippiRotate_8u_C3R (attached), and attempted to implement a solution from that, but we are getting different results than our previous version.

This is what we have written as our replacement:

IppStatus status;

IppiWarpSpec* pSpec = 0;

double coeffs[2][3] = {0};

int specSize = 0, initSize = 0, bufSize = 0;

Ipp32f* pBuffer = 0;

IppiPoint dstOffset = {0, 0};

Ipp64f pBorderValue[1] = {0};

status = ippiGetRotateTransform (angle, xShift, yShift, (double(*)[3])coeffs);

if(status != ippStsNoErr)

return status;

status = ippiWarpAffineGetSize(srcSize, dstSize, ipp32f, coeffs, ippLinear, ippWarpForward, ippBorderRepl, &specSize, &initSize);

if(status != ippStsNoErr)

return status;

pSpec = (IppiWarpSpec*)ippsMalloc_32f(specSize);

status = ippiWarpAffineLinearInit(srcSize, dstSize, ipp32f, coeffs, ippWarpForward, 1, ippBorderRepl, pBorderValue, 0, pSpec);

if(status != ippStsNoErr)

{

ippsFree(pSpec);

return status;

}

status = ippiWarpGetBufferSize(pSpec, dstSize, &bufSize);

if(status != ippStsNoErr)

return status;

pBuffer = ippsMalloc_32f(bufSize);

status = ippiWarpAffineLinear_32f_C1R(pSrc, srcStep, pDst, dstStep, dstOffset, dstSize, pSpec, pBuffer);

ippsFree(pSpec);

ippsFree(pBuffer);

Re:Replacement for ippiRotate_32f_C1R

ArpitaP_Intel — Wed, 07 Apr 2021 10:50:23 GMT

Hi ChristinaLabay,

Thanks for reaching out to us.

We are working on it internally. We will get back to you.

Regards,

Arpita

Re: Re:Replacement for ippiRotate_32f_C1R

Abhinav_S_Intel — Fri, 09 Apr 2021 20:28:15 GMT

Hi Christina,

For ippiRotate_32f_C1R replacement, I am attaching a sample file Rotate.c to help you understand the usage of APIs.

We have a reference manual on how to substitute deprecated IPP functions:
https://software.intel.com/content/www/us/en/develop/documentation/ipp-dev-reference/top/volume-2-image-processing/appendix-c-removed-functions-for-image-and-video-processing.html

Let us know about your results.

Abhinav

Re:Replacement for ippiRotate_32f_C1R

AbhishekD_Intel — Tue, 25 May 2021 11:20:18 GMT

Hi,

Hope the provided solution worked for you. We will no longer monitor this thread. If you require any additional assistance from Intel, please start a new thread.

Any further interaction in this thread will be considered community only.

Warm Regards,

Abhishek