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#ifndef _PALETTE_H_
#define _PALETTE_H_
#include "linked.hpp"
#include "specs.hpp"
#define COLOR_BITS 6 // On PC-6, most others -8
#define COLOR_SHIFT (8-COLOR_BITS)
#define MAX_COLOR ((1<<COLOR_BITS)-1)
#define RED3(x) (unsigned char) ((((int)x&(7<<5))>>5)*(int)255/(int)7)
#define GREEN3(x) (unsigned char) (((x&(7<<2))>>2)*(int)255/(int)7)
#define BLUE2(x) (unsigned char) ((x&3)*(int)255/(int)3)
struct color
{
unsigned char red,green,blue;
} ;
class palette : public linked_node
{
color *pal;
unsigned char *usd; // bit array
short ncolors;
int bg;
public :
palette(int number_colors=256);
palette(spec_entry *e, bFILE *fp);
palette(bFILE *fp);
void set(int x, unsigned char red, unsigned char green, unsigned char blue);
void get(int x, unsigned char &red, unsigned char &green, unsigned char &blue);
long getquad(int x);
unsigned int red(int x) { return pal[x].red; }
unsigned int green(int x) { return pal[x].green; }
unsigned int blue(int x) { return pal[x].blue; }
void *addr() { return (void *) pal; }
void shift(int amount);
void load();
void load_nice();
void fade_to(int total_fades, int fade_on, int dest_r, int dest_g, int dest_b);
void defaults();
void set_rgbs();
void make_black_white();
void black_white();
int pal_size() { return ncolors; }
void set_used(int color_num);
void set_unused(int color_num);
int used(int color_num);
void set_all_used();
void set_all_unused();
void set_background(unsigned char b) { bg=b; }
int background(unsigned char b) { return bg; }
int add_color(unsigned int r, unsigned int g, unsigned int b,
int closest_only=0);
int find_color(unsigned char r, unsigned char g, unsigned char b);
int find_closest(unsigned char r, unsigned char g, unsigned char b);
int find_closest_non0(unsigned char r, unsigned char g, unsigned char b);
palette *copy();
unsigned char brightest(int all=0);
unsigned char darkest(int all=0, int noblack=1);
int write(bFILE *fp);
int size();
~palette();
} ;
class quant_node : public linked_node
{
quant_node *padre;
public :
unsigned tot;
quant_node *children[8];
int is_leaf() { return children[0]==this; }
void be_childish() { children[0]=this; }
quant_node *father() { return padre; }
quant_node(int level, quant_node *dad,
unsigned char r=0, unsigned char g=0, unsigned char b=0);
void total(int &tnodes, int &tr, int &tg, int &tb);
// void prune();
void set(int r,int g,int b) {red=r; green=g; blue=b; }
unsigned char red,green,blue;
~quant_node();
} ;
class quant_palette
{
linked_list level[8];
quant_node *root;
int nc,mx;
void prune();
void re_delete(quant_node *who, int lev);
public :
void add_color(unsigned char r, unsigned char g, unsigned char b);
quant_palette(int max_colors=256);
palette *create_pal();
~quant_palette();
} ;
palette *last_loaded();
#endif
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