code/libpng/img.h

#ifndef IMG_H
#define IMG_H
#include <png.h>
#include <stdlib.h>
#include <stdio.h>

typedef struct pix {
	int r;
	int g; 
	int b;
	int a;
}pix;

typedef struct pix_row {
	int lenght;
	pix* p;
}pix_row;

typedef struct image {

	png_structp png_ptr;
	png_infop info_ptr;
	int width;
	int height;
	FILE *fp;
} image;


image initialize_png(char* title, char* filename, int width, int height);
void write_image(image * img, pix_row * img_array);
void finish_image(image * img);

#endif