mlib_ImageZoomTranslateTabmediaLibLLibramlib_ImageZoomTranslateTable_Fp(3MLIB)NAMEmlib_ImageZoomTranslateTable_Fp - zoom, with translation, with table-
driven interpolation
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageZoomTranslateTable_Fp(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_Fp() function will enlarge or minify
the floating-point 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_FLOAT or MLIB_DOUBLE.
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 ALSOmlib_ImageInterpTableCreate(3MLIB), mlib_ImageInterpTableDelete(3MLIB),
mlib_ImageZoomTranslateTable(3MLIB), mlib_ImageZoomTranslate(3MLIB),
mlib_ImageZoomTranslate_Fp(3MLIB), attributes(5)SunOS 5.10 2 Mar mlib_ImageZoomTranslateTable_Fp(3MLIB)
