extern int handle;  /* VDI handle */

static int pxy[4];
static int step;
static int x,y;

pixinit(pow)
int pow;
{
    step = 1 << pow;
    x=0;
    y=0;
}

curput(col)
int col;
{
    pxy[0] = x;
    pxy[1] = y;
    pxy[2] = x+step-1;
    pxy[3] = y+step-1;
    vsf_color(handle,col);
    v_bar(handle,pxy);
}

pixput(col)
int col;
{
    pxy[0] = x;
    pxy[1] = y;
    pxy[2] = x+step-1;
    pxy[3] = y+step-1;
    vsf_color(handle,col);
    v_bar(handle,pxy);
    pixskip();
}

pixskip()
{
    x += step;
    if (x >= 320) {
	x = 0;
	y += step;
    }
}