#ifndef PNGWRITER_H_
#define PNGWRITER_H_

#include <png.h>

#define PNGWRITER_DEFAULT_COMPRESSION 6

typedef struct {
  png_bytepp pPixels;
  int nWidth;
  int nHeight;
} png_data;

png_data *png_create(int nWidth, int nHeight);
void png_plot(png_data *pData, int x, int y, int r, int g, int b);
void png_write(png_data *pData, char *szFileName);

#endif /*PNGWRITER_H_*/