mlib_ImageBlendColor_Fp_InmediaLib Library Fmlib_ImageBlendColor_Fp_Inp(3MLIB)NAMEmlib_ImageBlendColor_Fp_Inp - blend an image and a color, in place
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageBlendColor_Fp_Inp(mlib_image *srcdst,
const mlib_d64 *color, mlib_s32 cmask);
DESCRIPTION
The mlib_ImageBlendColor_Fp_Inp() function blends an image and a color
with the alpha channel.
It uses the following equation:
Cd = Cs*As + Cc*(1 - As)
Ad = 1.0
where, Cs and Cd are the RGB color components of the source and desti‐
nation images, respectively. As and Ad are the alpha components of the
source and destination images, respectively. Cc is the color component
of the constant color.
For MLIB_FLOAT and MLIB_DOUBLE images, the alpha coefficients are
assumed to be in the range of [0.0, 1.0].
The images can have two to four channels. The length of color array
must not be less than the number of channels in the images.
PARAMETERS
The function takes the following arguments:
srcdst Pointer to the source and destination image.
color Array of constant color components.
cmask Channel mask to indicate the alpha channel. Each bit of cmask
represents a channel in the image. The channel corresponding
to the highest bit with value 1 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_ImageBlendColor_Fp(3MLIB), mlib_ImageBlendColor(3MLIB),
mlib_ImageBlendColor_Inp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007mlib_ImageBlendColor_Fp_Inp(3MLIB)
