Intel® Integrated Performance Primitives Developer Reference

Developer Reference

  • 2021
  • 01/15/2021
  • Public Content
Contents

Code Examples

The document contains a number of code examples that use the Intel IPP functions. These examples show both some particular features of the primitives and how the primitives can be called. Many of these code examples output result data together with the status code and associated messages in case of an error or a warning condition.
To keep the example code simpler, special definitions of print statements are used that get output strings look exactly the way it is needed for better representation of results of different format, as well as print status codes and messages.
The code definitions given below make it possible to build the examples contained in the document by straightforward copying and pasting the example code fragments. 
#define genPRINT(TYPE,FMT) \
void printf_##TYPE(const char* msg, Ipp##TYPE* buf, int len, IppStatus st ) { \
   int n; \
   if( st > ippStsNoErr ) \
      printf( "\n-- warning %d, %s", st, ippGetStatusString( st )); \
   else if( st < ippStsNoErr ) \
      printf( "\n-- error %d, %s", st, ippGetStatusString( st )); \
   printf("\n %s \n", msg ); \
   for( n=0; n<len; ++n ) printf( FMT, buf[n] ); \
   printf("\n" ); \
}
genPRINT( 64f, " %f" )
genPRINT( 32f, " %f" )
genPRINT( 32u, " %u" )
genPRINT( 16s, " %d" )
genPRINT( 8u, " %u" )

#define genPRINTcplx(TYPE,FMT) \
void printf_##TYPE(const char* msg, Ipp##TYPE* buf, int len, IppStatus st ) { \
   int n; \
   if( st > ippStsNoErr ) \
      printf( "\n-- warning %d, %s", st, ippGetStatusString( st )); \
   else if( st < ippStsNoErr ) \
      printf( "\n-- error %d, %s", st, ippGetStatusString( st )); \
   printf(" %s ", msg ); \
   for( n=0; n<len; ++n ) printf( FMT, buf[n].re, buf[n].im ); \
   printf("\n" ); \
}
genPRINTcplx( 64fc, " {%f,%f}" )
genPRINTcplx( 32fc, " {%f,%f}" )
genPRINTcplx( 16sc, " {%d,%d}" )

#define genPRINT_2D(TYPE,FMT) \
void printf_##TYPE##_2D(const char* msg, Ipp##TYPE* buf, IppiSize roi, int step, IppStatus st ) { \
   int i, j; \
   if ( st > ippStsNoErr ) { \
      printf( "\n-- warning %d, %s", st, ippGetStatusString( st )); \
   } else if ( st < ippStsNoErr ) { \
      printf( "\n-- error %d, %s", st, ippGetStatusString( st )); \
   } \
   printf("\n %s \n", msg ); \
   for ( i=0; i<roi.height; i++ ) { \
      for ( j=0; j<roi.width; j++ ) { \
         printf( FMT, ((Ipp##TYPE*)(((Ipp8u*)buf) + i*step))[j] ); \
      } \
      printf("\n"); \
   } \
   printf("\n" ); \
}
genPRINT_2D( 8u, " %u" )
genPRINT_2D( 32f, " %.1f" )

Product and Performance Information

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