/*
 *
 * File:	p24to8.h
 * Project:	libpict 1.1
 * Date:	Fri, May 19, 1995
 * (c) SPDsoft 1992-95
 *
 */
#ifndef	P24TO8_H
#define P24TO8_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pict.h"

typedef	U_char	byte;

typedef	struct COLOR_RECT {	long	first,last;
				long	hist_sum;
				byte	r_min,r_max,
					g_min,g_max,
					b_min,b_max;
				byte	widest;
				short 	width;
				float	r,g,b;			
				struct	COLOR_RECT *next;	} COLOR_RECT;

#define	RED(x)		(((x) & r_mask) >> 2*n_bits_left)
#define	GREEN(x)	(((x) & g_mask) >>   n_bits_left)
#define	BLUE(x)		(((x) & b_mask)                 )

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

#if defined(__STDC__) || defined(THINK_C)

void	init_all(int);
void	calc_hist(Pict, int *);
void	test_hist(int *);
int	num_diff_colors(int *);
void	select_colors(int *);
void	build_table_1(int *);

COLOR_RECT *new_rect();
void	init_list(COLOR_RECT *,int *,int *),
	head(COLOR_RECT **,COLOR_RECT **),
	insert(COLOR_RECT **,COLOR_RECT *),
	append(COLOR_RECT **,COLOR_RECT *);
void	split_rect(COLOR_RECT *,COLOR_RECT **,COLOR_RECT **);
int	comp_r(const void *,const void *),
	comp_g(const void *,const void *),
	comp_b(const void *,const void *);
void	sort_list(int *,long,long,byte);
int	find_half(int *,int *,long,long,byte,long,long *);
void	find_min_max(COLOR_RECT *);
void	average_color(COLOR_RECT *,int *,int *);
void	build_table_2();
Pict	save_8bits(Pict);

void	mem_out();

#else   /* __STDC__ || THINK_C */

void	init_all();
void	calc_hist();
void	test_hist();
int	num_diff_colors();
void	select_colors();
void	build_table_1();

COLOR_RECT *new_rect();
void	init_list(),
	head(),
	insert(),
	append();
void	split_rect();
int	comp_r(),
	comp_g(),
	comp_b();
void	sort_list();
int	find_half();
void	find_min_max();
void	average_color();
void	build_table_2();
Pict	save_8bits();

void	mem_out();

#endif  /* __STDC__ || THINK_C */


#endif /* P24TO8_H */