Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 10/31/2024
Public
Document Table of Contents

CopyManaged

Copies pixel values between two images in accordance with the specified type of copying.

Syntax

IppStatus ippiCopyManaged_8u_C1R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, int flags);

Include Files

ippi.h

Domain Dependencies

Headers: ippcore.h, ippvm.h, ipps.h

Libraries: ippcore.lib, ippvm.lib, ipps.lib

Parameters

pSrc

Pointer to the source image ROI.

srcStep

Distance, in bytes, between the starting points of consecutive lines in the source image.

pDst

Pointer to the destination image ROI.

dstStep

Distance, in bytes, between the starting points of consecutive lines in the destination image.

roiSize

Size of the image ROI in pixels.

flags

Specifies the type of copying. Possible values are:

  • IPP_TEMPORAL_COPY - standard copying

  • IPP_NONTEMPORAL_STORE - copying without caching the destination image

  • IPP_NONTEMPORAL_LOAD - processor uses non-temporal load instructions

Description

This function operates with ROI.

This function copies data from a source image ROI pSrc to the destination image ROI pDst. The flags parameter specifies the type of copying that the function performs:

  • When flags is set to IPP_TEMPORAL_COPY, the function is identical to the ippiCopy_8u_C1R function.

  • When flags is set to IPP_NONTEMPORAL_STORE, the processor uses non-temporal store instructions. Copying is performed without caching the data of the destination image.

  • When flags is set to IPP_NONTEMPORAL_LOAD, the processor uses non-temporal load instructions.

To achieve better performance, align data to 64-byte boundary.

Product and Performance Information

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

Notice revision #20201201

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or a warning.

ippStsNullPtrErr

Indicates an error when one of the specified pointers is NULL.

ippStsSizeErr

Indicates an error when roiSize has a field with a zero or negative value.