#include <SDL.h> 
#include <cairo.h>

int main ()
{
	SDL_Init(SDL_INIT_VIDEO); 
	
	SDL_Surface *screen =
		SDL_SetVideoMode(400, 300, 32, SDL_SWSURFACE); 
	
	if (SDL_MUSTLOCK(screen))
	{
		SDL_LockSurface(screen);
	}
	
	cairo_surface_t *cairosurf = cairo_image_surface_create_for_data
	(
		screen->pixels,
		CAIRO_FORMAT_ARGB32,
		screen->w,
		screen->h,
		screen->pitch
	);
	
	cairo_t *cr = cairo_create(cairosurf);
	
	cairo_rectangle(cr, 10, 10, 40, 40);
	cairo_set_source_rgb(cr, 255, 0, 0);
	cairo_fill(cr);
	
	if (SDL_MUSTLOCK(screen))
	{
		SDL_UnlockSurface(screen);
	}
	
	SDL_Flip(screen); 
	SDL_Delay(2000); 
	
	SDL_Quit(); 
	
	return 0; 
}