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/* cassbeam - a Cassegrain antenna simulator
Copyright (C) August 18, 2003 Walter Brisken
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA*/
#ifndef __IMAGE_H__
#define __IMAGE_H__
/* data[Y][X] */
struct _Image
{
unsigned char **data;
int xres, yres;
};
typedef struct _Image* Image;
#define zeroImage(p) blankImage(p, 0)
Image newImage(int xres, int yres);
void deleteImage(Image p);
Image loadImageaspgm(const char *filename);
Image loadImageasweightedpgm(const char *filename,
float rw, float gw, float bw);
int saveImageaspgm(const Image p, const char *filename);
Image dupImage(const Image p);
void blankImage(Image p, unsigned char value);
void Imagedrawhline(Image p, int x0, int x1, int y, unsigned char value);
void stretchImage(Image p);
Image scaleImage(const Image p, int newxres, int newyres);
void applyfunctoImage(Image p, unsigned char (* func)(unsigned char v));
Image halveImage(Image p);
#endif
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