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/* -*- c -*- */
/*
* zoom.h
*
* metapixel
*
* Copyright (C) 2004 Mark Probst
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ZOOM_H__
#define __ZOOM_H__
typedef float (*filter_func_t) (float);
typedef struct
{
filter_func_t func;
float support_radius;
} filter_t;
#define FILTER_BOX 0
#define FILTER_TRIANGLE 1
#define FILTER_MITCHELL 2
filter_t* get_filter (int index);
void zoom_image (unsigned char *dest, unsigned char *src,
filter_t *filter, int num_channels,
int dest_width, int dest_height, int dest_row_stride,
int src_width, int src_height, int src_row_stride);
#endif
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