#if 0
#include <stdio.h>
#include <time.h>
#endif

#define SIZE   30

#define MIN(a,b)    ((a<b) ? a : b)
#define MAX(a,b)    ((a<b) ? b : a)


#define MAX_BUF	100
double test_stack(int x, double y)
{
	int buf[MAX_BUF];
	int i;


	for( i = 0; i < MAX_BUF; i++)
	{
		buf[i] = x;
		x += y;
	}

	return x;
}




void  RGBtoHSV( const int length,
              const short r[], const short g[], const short b[], 
              short h[], short s[], short v[] )
{
	int i;
	short min, max, delta;
	for(i=0;i<SIZE;i++) {
		max = MAX(r[i],MAX(g[i],b[i]));
		min = MIN(r[i],MIN(g[i],b[i]));
		
		delta = max - min;
		v[i] = max;

		if (max == 0) {
			s[i] = 0;
			h[i] = -1;
		}
		else {
			s[i] = ((short)(delta << 8)) / max;
			
			if (r[i] == max)
				h[i] = ((short)((g[i]-b[i]) * 60)) / delta;
			else if (g[i] == max)
				h[i] = 120 + ((short)((b[i]-r[i]) * 60)) / delta;
			else
				h[i] = 240 + ((short)((r[i]-g[i]) * 60)) / delta;
		}
	}
}

#if 0
void main()
{

	int i, j;
	short r[SIZE], g[SIZE], b[SIZE], h[SIZE], v[SIZE], s[SIZE];

	for(j=0;j<SIZE;j++) {
		r[j] = j;
		g[j] = SIZE-j;
		b[j] = SIZE;
	}
	printf("\nStart\n");

	RGBtoHSV( SIZE, r, g, b, h, s, v );

	printf("\nEnd\n");
	for(j=0;j<SIZE;j++)
		printf("r=%d, g=%d, b=%d, h=%d, v=%d, s=%d\n", 
			r[j], g[j], b[j], h[j], v[j], s[j]);
}

#endif