'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_ImageConstMulShift_Inp 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_ImageConstMulShift_Inp \- multiply with a constant, with shifting
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_ImageConstMulShift_Inp\fR(\fBmlib_image *\fR\fIsrcdst\fR,
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIshift\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_ImageConstMulShift_Inp()\fR 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.
.sp
.LP
It uses the following equation:
.sp
.in +2
.nf
srcdst[x][y][i] = c[i] * srcdst[x][y][i] * 2**(-shift)
.fi
.in -2

.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIsrcdst\fR\fR
.ad
.RS 10n
.rt  
Pointer to source and destination image.
.RE

.sp
.ne 2
.mk
.na
\fB\fIc\fR\fR
.ad
.RS 10n
.rt  
Constant by which each pixel is multiplied. \fBc[i]\fR contains the constant for channel \fBi\fR.
.RE

.sp
.ne 2
.mk
.na
\fB\fIshift\fR\fR
.ad
.RS 10n
.rt  
Right shifting factor. \fB0 \(<= shift \(<= 31\fR.
.RE

.SH RETURN VALUES
.sp
.LP
The function returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBmlib_ImageConstMul\fR(3MLIB), \fBmlib_ImageConstMul_Fp\fR(3MLIB), \fBmlib_ImageConstMul_Fp_Inp\fR(3MLIB), \fBmlib_ImageConstMul_Inp\fR(3MLIB), \fBmlib_ImageConstMulShift\fR(3MLIB), \fBattributes\fR(5)