fcutf16toucs4(3) [sunos man page]

FcUtf16ToUcs4(3)														  FcUtf16ToUcs4(3)

NAME

       FcUtf16ToUcs4 - convert UTF-16 to UCS4

SYNOPSIS

       #include <fontconfig.h>

       int FcUtf16ToUcs4 (FcChar8 *src, FcEndianendian, FcChar32 *dst, intlen);

DESCRIPTION

       Converts  the next Unicode char from src into dst and returns the number of bytes containing the char. src must be at least len bytes long.
       Bytes of src are combined into 16-bit units according to endian.

VERSION

       Fontconfig version 2.2.3

								   30 June 2004 						  FcUtf16ToUcs4(3)

mlib_ImageDivAlpha(3MLIB)				    mediaLib Library Functions					 mlib_ImageDivAlpha(3MLIB)

NAME

       mlib_ImageDivAlpha - alpha channel division

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageDivAlpha(mlib_image *dst, const mlib_image *src, mlib_s32 cmask);

DESCRIPTION

       The mlib_ImageDivAlpha() function divides color channels by the alpha channel on a pixel-by-pixel basis.

       For the MLIB_BYTE image, it uses the following equation:

       dst[x][y][c] = src[x][y][c] / (src[x][y][a] * 2**(-8))

       For the MLIB_SHORT image, it uses the following equation:

       dst[x][y][c] = src[x][y][c] / (src[x][y][a] * 2**(-15))

       For the MLIB_USHORT image, it uses the following equation:

       dst[x][y][c] = src[x][y][c] / (src[x][y][a] * 2**(-16))

       For the MLIB_INT image, it uses the following equation:

       dst[x][y][c] = src[x][y][c] / (src[x][y][a] * 2**(-31))

       where c and a are the indices for the color channels and the alpha channel, respectively, so c != a.

       In the case of src[x][y][a] = 0,

       dst[x][y][c] = 0 	     if src[x][y][c] = 0
       dst[x][y][c] = DATA_TYPE_MAX  if src[x][y][c] > 0
       dst[x][y][c] = DATA_TYPE_MIN  if src[x][y][c] < 0

       where  DATA_TYPE  is MLIB_U8, MLIB_S16, MLIB_U16, or MLIB_S32 for an image of type MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT, respec-
       tively.

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       cmask	       Channel mask to indicate the alpha channel. Each bit of the mask represents a channel in the image. The channel correspond-
		       ing 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	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageDivAlpha_Inp(3MLIB), mlib_ImageDivAlpha_Fp(3MLIB), mlib_ImageDivAlpha_Fp_Inp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 					 mlib_ImageDivAlpha(3MLIB)