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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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sgi2fax
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izoom.h
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C/C++ Source or Header
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1994-08-01
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2KB
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/* $Header: /usr/people/sam/fax/sgi2fax/RCS/izoom.h,v 1.6 1994/02/28 14:23:04 sam Rel $
/*
* Copyright (c) 1990, 1991, 1992, 1993, 1994 Sam Leffler
* Copyright (c) 1991, 1992, 1993, 1994 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef IZOOMDEF
#define IZOOMDEF
#define IMPULSE 1
#define BOX 2
#define TRIANGLE 3
#define QUADRATIC 4
#define MITCHELL 5
typedef struct FILTER {
int n, totw;
short *dat;
short *w;
} FILTER;
typedef struct zoom {
int (*getfunc)();
short *abuf;
short *bbuf;
int anx, any;
int bnx, bny;
short **xmap;
int type;
int curay;
int y;
FILTER *xfilt, *yfilt; /* stuff for fitered zoom */
short *tbuf;
int nrows, clamp, ay;
short **filtrows;
int *accrow;
} zoom;
zoom *newzoom();
#endif /* IZOOMDEF */