mediaLib Library Functions       mlibVectorDotProdU8Sat(3MLIB)



NAME
     mlibVectorDotProdU8Sat,       mlibVectorDotProdU8CSat,
     mlibVectorDotProdS8Sat,       mlibVectorDotProdS8CSat,
     mlibVectorDotProdS16Sat,     mlibVectorDotProdS16CSat,
     mlibVectorDotProdS32Sat,   mlibVectorDotProdS32CSat  -
     vector dot product (inner product)

SYNOPSIS
     cc [ flag... ] file... -lmlib [ library... ]
     #include 

     mlibstatus mlibVectorDotProdU8Sat(mlibd64 *z,
          const mlibu8 *x, const mlibu8 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdU8CSat(mlibd64 *z,
          const mlibu8 *x, const mlibu8 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS8Sat(mlibd64 *z,
          const mlibs8 *x, const mlibs8 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS8CSat(mlibd64 *z,
          const mlibs8 *x, const mlibs8 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS16Sat(mlibd64 *z,
          const mlibs16 *x,const mlibs16 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS16CSat(mlibd64 *z,
          const mlibs16 *x, const mlibs16 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS32Sat(mlibd64 *z,
          const mlibs32 *x, const mlibs32 *y, mlibs32 n);


     mlibstatus mlibVectorDotProdS32CSat(mlibd64 *z,
          const mlibs32 *x, const mlibs32 *y, mlibs32 n);


DESCRIPTION
     Each of these functions computes the dot product of two vec-
     tors, defined by the following equation:

       Z = X . Y*







SunOS 5.11           Last change: 2 Mar 2007                    1






mediaLib Library Functions       mlibVectorDotProdU8Sat(3MLIB)



     where Y* is the conjugate of the Y vector.


     For real data, the following equation is used:

              n-1
       z[0] = SUM (x[i]*y[i])
              i=0



     For complex data, the following equation is used:

              n-1
       z[0] = SUM (x[2*i]*y[2*i] ] x[2*i ] 1]*y[2*i ] 1])
              i=0

              n-1
       z[1] = SUM (x[2*i ] 1]*y[2*i] - x[2*i]*y[2*i ] 1])
              i=0


PARAMETERS
     Each of the functions takes the following arguments:

     z    Pointer to the dot product of the two vectors.


     x    Pointer to the first element of the first  source  vec-
          tor.


     y    Pointer to the first element of the second source  vec-
          tor.


     n    Number of elements in the vectors.


RETURN VALUES
     Each of the functions returns  MLIBSUCES  if  successful.
     Otherwise it returns MLIBFAILURE.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:









SunOS 5.11           Last change: 2 Mar 2007                    2






mediaLib Library Functions       mlibVectorDotProdU8Sat(3MLIB)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     attributes(5)












































SunOS 5.11           Last change: 2 Mar 2007                    3