mlib_VectorDotProd_U8_Sat(mediaLib Library Funmlib_VectorDotProd_U8_Sat(3MLIB)NAME
mlib_VectorDotProd_U8_Sat, mlib_VectorDotProd_U8C_Sat, mlib_VectorDot‐
Prod_S8_Sat, mlib_VectorDotProd_S8C_Sat, mlib_VectorDotProd_S16_Sat,
mlib_VectorDotProd_S16C_Sat, mlib_VectorDotProd_S32_Sat, mlib_Vector‐
DotProd_S32C_Sat - vector dot product (inner product)
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VectorDotProd_U8_Sat(mlib_d64 *z,
const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_U8C_Sat(mlib_d64 *z,
const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S8_Sat(mlib_d64 *z,
const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S8C_Sat(mlib_d64 *z,
const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S16_Sat(mlib_d64 *z,
const mlib_s16 *x,const mlib_s16 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S16C_Sat(mlib_d64 *z,
const mlib_s16 *x, const mlib_s16 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S32_Sat(mlib_d64 *z,
const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n);
mlib_status mlib_VectorDotProd_S32C_Sat(mlib_d64 *z,
const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n);
DESCRIPTION
Each of these functions computes the dot product of two vectors,
defined by the following equation:
Z = X . Y*
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 vector.
y Pointer to the first element of the second source vector.
n Number of elements in the vectors.
RETURN VALUES
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it
returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOattributes(5)SunOS 5.11 2 Mar 2007 mlib_VectorDotProd_U8_Sat(3MLIB)