mlib_VectorMulShift_U8_U8_Mod(3MLIB) mediaLib Library Functions mlib_VectorMulShift_U8_U8_Mod(3MLIB)
NAME
mlib_VectorMulShift_U8_U8_Mod, mlib_VectorMulShift_U8_U8_Sat, mlib_VectorMulShift_U8C_U8C_Mod, mlib_VectorMulShift_U8C_U8C_Sat, mlib_Vec-
torMulShift_S8_S8_Mod, mlib_VectorMulShift_S8_S8_Sat, mlib_VectorMulShift_S8C_S8C_Mod, mlib_VectorMulShift_S8C_S8C_Sat, mlib_VectorMul-
Shift_S16_S16_Mod, mlib_VectorMulShift_S16_S16_Sat, mlib_VectorMulShift_S16C_S16C_Mod, mlib_VectorMulShift_S16C_S16C_Sat, mlib_VectorMul-
Shift_S32_S32_Mod, mlib_VectorMulShift_S32_S32_Sat, mlib_VectorMulShift_S32C_S32C_Mod, mlib_VectorMulShift_S32C_S32C_Sat - vector multipli-
cation with shifting
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VectorMulShift_U8_U8_Mod(mlib_u8 *z, const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_U8_U8_Sat(mlib_u8 *z, const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_U8C_U8C_Mod(mlib_u8 *z, const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_U8C_U8C_Sat(mlib_u8 *z, const mlib_u8 *x, const mlib_u8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S8_S8_Mod(mlib_s8 *z, const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S8_S8_Sat(mlib_s8 *z, const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S8C_S8C_Mod(mlib_s8 *z, const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S8C_S8C_Sat(mlib_s8 *z, const mlib_s8 *x, const mlib_s8 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S16_S16_Mod(mlib_s16 *z, const mlib_s16 *x, const mlib_s16 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S16_S16_Sat(mlib_s16 *z, const mlib_s16 *x, const mlib_s16 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S16C_S16C_Mod(mlib_s16 *z, const mlib_s16 *x, const mlib_s16 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S16C_S16C_Sat(mlib_s16 *z, const mlib_s16 *x, const mlib_s16 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S32_S32_Mod(mlib_s32 *z, const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S32_S32_Sat(mlib_s32 *z, const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S32C_S32C_Mod(mlib_s32 *z, const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n, mlib_s32 shift);
mlib_status mlib_VectorMulShift_S32C_S32C_Sat(mlib_s32 *z, const mlib_s32 *x, const mlib_s32 *y, mlib_s32 n, mlib_s32 shift);
DESCRIPTION
Each of these functions performs a multiplication of two vectors, shifts the result, and puts it into a third vector.
For real data, the following equation is used:
z[i] = x[i] * y[i] * 2**(-shift)
where i = 0, 1, ..., (n - 1).
For complex data, the following equation is used:
z[2*i] = (x[2*i]*y[2*i] - x[2*i + 1]*y[2*i + 1]) * 2**(-shift)
z[2*i + 1] = (x[2*i]*y[2*i + 1] + x[2*i + 1]*y[2*i]) * 2**(-shift)
where i = 0, 1, ..., (n - 1).
PARAMETERS
Each of the functions takes the following arguments:
z Pointer to the first element of the result vector.
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 each vector.
shift Right shifting factor. The ranges of valid shift are:
1 <= shift <= 8 for U8, S8, U8C, S8C types
1 <= shift <= 16 for S16, S16C types
1 <= shift <= 31 for S32, S32C types
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 |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
mlib_VectorMulShift_U8_Mod(3MLIB), attributes(5)
SunOS 5.10 10 Nov 2004 mlib_VectorMulShift_U8_U8_Mod(3MLIB)