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image.h
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/**
*
* Image handling tools, (c) AJK 2001-2005
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __IMAGE_H
#define __IMAGE_H
typedef unsigned int Colour; // RGB value
// Image object
typedef struct {
int W, // width
L, // Line length in Image (W+1)
H; // height
unsigned char *Image; // image array, one byte per pixel
int C; // colours (can be non power of 2, max 256)
Colour *Colour; // colour map (must have entry for each colour)
} Image;
// macros and functions
#define ImagePixel(i,x,y) ((i)->Image[1+(i)->L*(y)+(x)])
Image *ImageNew(int w, int h, int c); // create a new blank image
void ImageFree(Image * i); // free an image
void ImageWritePNG(Image * i, int fh, int back, int trans, const char *comment);
#endif /* __IMAGE_H */