#ifndef DRAW_H
#define DRAW_H


#include "common.h"
#include "image.h"


typedef struct {
  int   x;
  int   y;
} point;
          
       
#define max4(a,b,c,d)   max(max(a,b),max(c,d))
#define min4(a,b,c,d)   min(min(a,b),min(c,d))
#define swapint(x,y)    { int t = x; x = y; y = t; }


int round (double x);


void drawHLine (Image* img, int y, int x0, int x1, Pixel& p);
void drawQuad (Image* img, point i, point j, point k, point l, Pixel& p);
void drawPoly (Image* img, point* pts, int n, Pixel& p);

void drawCircle (Image* img, int x, int y, int r, Pixel& p);
void drawAntiAliasedCircle (Image* img, int x, int y, int r, Pixel& p);



#endif // DRAW_H