opensolaris man page for mlib_imagezoomtranslatetable

mlib_ImageZoomTranslateTable(3MLIB)			    mediaLib Library Functions			       mlib_ImageZoomTranslateTable(3MLIB)

NAME
       mlib_ImageZoomTranslateTable - zoom, with translation, with table-driven interpolation

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

       mlib_status mlib_ImageZoomTranslateTable(mlib_image *dst,
	    const mlib_image *src, mlib_d64 zoomx, mlib_d64 zoomy,
	    mlib_d64 tx, mlib_d64 ty, const void *interp_table,
	    mlib_edge edge);

DESCRIPTION
       The  mlib_ImageZoomTranslateTable() function will enlarge or minify the source image by the X and Y zoom factors, with translation. It uses
       a table, interp_table, to do interpolation.

       It uses the following equation for coordinate mapping:

	 xd = zoomx*xs + tx
	 yd = zoomy*ys + ty

       where a point with coordinates (xs, ys) in the source image is mapped to a point with coordinates (xd, yd) in the destination image.

       The data type of the images can be MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT.

       The width and height of the destination image can be different from the width and height of the source image.

       The center of the upper-left corner pixel of an image is located at (0.5, 0.5).

PARAMETERS
       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

       zoomx	       X zoom factor. zoomx > 0.

       zoomy	       Y zoom factor. zoomy > 0.

       tx	       X translation.

       ty	       Y translation.

       interp_table    Pointer to an interpolation table. The table is created by the mlib_ImageInterpTableCreate() function.

       edge	       Type of edge condition. It can be one of the following:

			 MLIB_EDGE_DST_NO_WRITE
			 MLIB_EDGE_DST_FILL_ZERO
			 MLIB_EDGE_OP_NEAREST
			 MLIB_EDGE_SRC_EXTEND
			 MLIB_EDGE_SRC_EXTEND_INDEF
			 MLIB_EDGE_SRC_PADDED

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_ImageInterpTableCreate(3MLIB),   mlib_ImageInterpTableDelete(3MLIB),   mlib_ImageZoomTranslateTable_Fp(3MLIB),    mlib_ImageZoomTrans-
       late(3MLIB), mlib_ImageZoomTranslate_Fp(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007				       mlib_ImageZoomTranslateTable(3MLIB)