mediaLib Library Functions mlib_ImageDivAlpha_Fp_Inp(3MLIB)
NAME
mlib_ImageDivAlpha_Fp_Inp - alpha channel division, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
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 corresponding 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 attri-
butes:SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlib_ImageDivAlpha_Fp_Inp(3MLIB)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageDivAlpha(3MLIB), mlib_ImageDivAlpha_Fp(3MLIB),
mlib_ImageDivAlpha_Inp(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2