mlib_ImageConstMulShift(3MmediaLib Library Functmlib_ImageConstMulShift(3MLIB)NAMEmlib_ImageConstMulShift - multiply with a constant, with shifting
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageConstMulShift(mlib_image *dst, const mlib_image *src,
const mlib_s32 *c, mlib_s32 shift);
DESCRIPTION
The mlib_ImageConstMulShift() function multiplies each pixel in an
image by a constant value on a pixel-by-pixel basis. It scales the
result by a right shift and writes the result to the destination image
on a pixel-by-pixel basis.
It uses the following equation:
dst[x][y][i] = c[i] * src[x][y][i] * 2**(-shift)
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image.
src Pointer to source image.
c Constant by which each pixel is multiplied. c[i] contains the
constant for channel i.
shift Right shifting factor. 0 ≤ shift ≤ 31.
RETURN VALUES
The function 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 ALSOmlib_ImageConstMul(3MLIB), mlib_ImageConstMul_Fp(3MLIB), mlib_ImageCon‐
stMul_Fp_Inp(3MLIB), mlib_ImageConstMul_Inp(3MLIB), mlib_ImageConstMul‐
Shift_Inp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageConstMulShift(3MLIB)
