1mlib_ImageMulAlpha_Fp_Inp(3mMeLdIiBa)Lib Library Funcmtliiobn_sImageMulAlpha_Fp_Inp(3MLIB)
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NAME

6       mlib_ImageMulAlpha_Fp_Inp - alpha channel multiplication
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SYNOPSIS

9       cc [ flag... ] file... -lmlib [ library... ]
10       #include <mlib.h>
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12       mlib_status mlib_ImageMulAlpha_Fp_Inp(mlib_image *srcdst, mlib_s32 cmask);
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DESCRIPTION

16       The   mlib_ImageMulAlpha_Fp_Inp()  function  multiplies  floating-point
17       color channels by the alpha channel on  a  pixel  by  pixel  basis,  in
18       place.
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21       It uses the following equation:
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23         srcdst[x][y][c] = srcdst[x][y][c] * srcdst[x][y][a]
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27       where  c  and  a  are  the indices for the color channels and the alpha
28       channel, respectively, so c != a.
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PARAMETERS

31       The function takes the following arguments:
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33       srcdst    Pointer to source and destination image.
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36       cmask     Channel mask to indicate the alpha channel. Each bit  of  the
37                 mask  represents  a  channel in the image. The channel corre‐
38                 sponding to the 1 bit of cmask is the alpha channel.
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RETURN VALUES

42       The function returns MLIB_SUCCESS if successful. Otherwise  it  returns
43       MLIB_FAILURE.
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ATTRIBUTES

46       See attributes(5) for descriptions of the following attributes:
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51       ┌─────────────────────────────┬─────────────────────────────┐
52       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
53       ├─────────────────────────────┼─────────────────────────────┤
54       │Interface Stability          │Committed                    │
55       ├─────────────────────────────┼─────────────────────────────┤
56       │MT-Level                     │MT-Safe                      │
57       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

60       mlib_ImageMulAlpha(3MLIB), mlib_ImageMulAlpha_Inp(3MLIB), mlib_ImageMu‐
61       lAlpha_Fp(3MLIB), attributes(5)
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65SunOS 5.11                        2 Mar 2007  mlib_ImageMulAlpha_Fp_Inp(3MLIB)
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