opensolaris man page for mlib_imagedivshift2_inp

mlib_ImageDivShift2_Inp(3MLIB)				    mediaLib Library Functions				    mlib_ImageDivShift2_Inp(3MLIB)

NAME
       mlib_ImageDivShift2_Inp - division with shifting, in place

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

       mlib_status mlib_ImageDivShift2_Inp(mlib_image *src2dst,
	    const mlib_image *src1, mlib_s32 shift);

DESCRIPTION
       The mlib_ImageDivShift2_Inp() function divides the second source image into the first source image on a pixel-by-pixel basis. It scales the
       result by a left shift and writes the result to the destination image on a pixel-by-pixel basis.

       It uses the following equation:

	 src2dst[x][y][i] = src1[x][y][i] / src2dst[x][y][i] * 2**shift

       In the case of src2dst[x][y][i] = 0,

	 src2dst[x][y][i] = 0		   if src1[x][y][i] = 0
	 src2dst[x][y][i] = DATA_TYPE_MAX  if src1[x][y][i] > 0
	 src2dst[x][y][i] = DATA_TYPE_MIN  if src1[x][y][i] < 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:

       src2dst	  Pointer to second source and destination image.

       src1	  Pointer to first source image.

       shift	  Left shifting factor. 0 <= shift <= 31.

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 ALSO
       mlib_ImageDivShift(3MLIB), mlib_ImageDivShift1_Inp(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007					    mlib_ImageDivShift2_Inp(3MLIB)