mlib_ImageDivAlpha_Fp_Inp(mediaLib Library Funmlib_ImageDivAlpha_Fp_Inp(3MLIB)NAMEmlib_ImageDivAlpha_Fp_Inp - alpha channel division, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageDivAlpha_Fp_Inp(mlib_image *srcdst, mlib_s32 cmask);
DESCRIPTION
The mlib_ImageDivAlpha_Fp_Inp() function divides floating-point color
channels by the alpha channel on a pixel-by-pixel basis, in place.
It uses the following equation:
srcdst[x][y][c] = srcdst[x][y][c] / srcdst[x][y][a]
where c and a are the indices for the color channels and the alpha
channel, respectively, so c != a.
The operation follows the IEEE-754 standard.
PARAMETERS
The function takes the following arguments:
srcdst Pointer to source and destination image.
cmask Channel mask to indicate the alpha channel. Each bit of the
mask represents a channel in the image. The channel corre‐
sponding to the 1 bit of cmask is the alpha channel.
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_ImageDivAlpha(3MLIB), mlib_ImageDivAlpha_Fp(3MLIB), mlib_ImageDi‐
vAlpha_Inp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageDivAlpha_Fp_Inp(3MLIB)
