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#include <qcolor.h>

#include <stdio.h>

#include <stdlib.h>

#include <limits.h>

#define APPLE_CMAP 1

struct Col {

    int r,g,b;

};

#if SPACE_SEARCH

#define MAPSIZE 256

#define ACCURACY 4     // Bits-per-channel

#define SPACESIZE ((1<<ACCURACY)*(1<<ACCURACY)*(1<<ACCURACY))

#define R(c) (((c>>(8-ACCURACY)*2)&((1<<ACCURACY)-1))<<ACCURACY)

#define G(c) (((c>>(8-ACCURACY))&((1<<ACCURACY)-1))<<ACCURACY)

#define B(c) (((c>>0)&((1<<ACCURACY)-1))<<ACCURACY)

#define COL(c) (((c.r>>(8-ACCURACY))<<8)|((c.b>>(8-ACCURACY))<<4)|(c.g>>(8-ACCURACY)))

#elif APPLE_CMAP

#define SPACESIZE 216

#define MAPSIZE 216

#define R(c) ((apple_cmap[c]>>16)&0xff)

#define G(c) ((apple_cmap[c]>>8)&0xff)

#define B(c) ((apple_cmap[c]>>0)&0xff)

#define COL(c) findapple(c)

static int apple_cmap[216] = {

0xffffff,

0xffffcc,

0xffff99,

0xffff66,

0xffff33,

0xffff00,

0xffccff,

0xffcccc,

0xffcc99,

0xffcc66,

0xffcc33,

0xffcc00,

0xff99ff,

0xff99cc,

0xff9999,

0xff9966,

0xff9933,

0xff9900,

0xff66ff,

0xff66cc,

0xff6699,

0xff6666,

0xff6633,

0xff6600,

0xff33ff,

0xff33cc,

0xff3399,

0xff3366,

0xff3333,

0xff3300,

0xff00ff,

0xff00cc,

0xff0099,

0xff0066,

0xff0033,

0xff0000,

0xccffff,

0xccffcc,

0xccff99,

0xccff66,

0xccff33,

0xccff00,

0xccccff,

0xcccccc,

0xcccc99,

0xcccc66,

0xcccc33,

0xcccc00,

0xcc99ff,

0xcc99cc,

0xcc9999,

0xcc9966,

0xcc9933,

0xcc9900,

0xcc66ff,

0xcc66cc,

0xcc6699,

0xcc6666,

0xcc6633,

0xcc6600,

0xcc33ff,

0xcc33cc,

0xcc3399,

0xcc3366,

0xcc3333,

0xcc3300,

0xcc00ff,

0xcc00cc,

0xcc0099,

0xcc0066,

0xcc0033,

0xcc0000,

0x99ffff,

0x99ffcc,

0x99ff99,

0x99ff66,

0x99ff33,

0x99ff00,

0x99ccff,

0x99cccc,

0x99cc99,

0x99cc66,

0x99cc33,

0x99cc00,

0x9999ff,

0x9999cc,

0x999999,

0x999966,

0x999933,

0x999900,

0x9966ff,

0x9966cc,

0x996699,

0x996666,

0x996633,

0x996600,

0x9933ff,

0x9933cc,

0x993399,

0x993366,

0x993333,

0x993300,

0x9900ff,

0x9900cc,

0x990099,

0x990066,

0x990033,

0x990000,

0x66ffff,

0x66ffcc,

0x66ff99,

0x66ff66,

0x66ff33,

0x66ff00,

0x66ccff,

0x66cccc,

0x66cc99,

0x66cc66,

0x66cc33,

0x66cc00,

0x6699ff,

0x6699cc,

0x669999,

0x669966,

0x669933,

0x669900,

0x6666ff,

0x6666cc,

0x666699,

0x666666,

0x666633,

0x666600,

0x6633ff,

0x6633cc,

0x663399,

0x663366,

0x663333,

0x663300,

0x6600ff,

0x6600cc,

0x660099,

0x660066,

0x660033,

0x660000,

0x33ffff,

0x33ffcc,

0x33ff99,

0x33ff66,

0x33ff33,

0x33ff00,

0x33ccff,

0x33cccc,

0x33cc99,

0x33cc66,

0x33cc33,

0x33cc00,

0x3399ff,

0x3399cc,

0x339999,

0x339966,

0x339933,

0x339900,

0x3366ff,

0x3366cc,

0x336699,

0x336666,

0x336633,

0x336600,

0x3333ff,

0x3333cc,

0x333399,

0x333366,

0x333333,

0x333300,

0x3300ff,

0x3300cc,

0x330099,

0x330066,

0x330033,

0x330000,

0x00ffff,

0x00ffcc,

0x00ff99,

0x00ff66,

0x00ff33,

0x00ff00,

0x00ccff,

0x00cccc,

0x00cc99,

0x00cc66,

0x00cc33,

0x00cc00,

0x0099ff,

0x0099cc,

0x009999,

0x009966,

0x009933,

0x009900,

0x0066ff,

0x0066cc,

0x006699,

0x006666,

0x006633,

0x006600,

0x0033ff,

0x0033cc,

0x003399,

0x003366,

0x003333,

0x003300,

0x0000ff,

0x0000cc,

0x000099,

0x000066,

0x000033,

0x000000,

};

int findapple(Col c)

{

    for (int i=0; i<216; i++)

	if (apple_cmap[i]==(c.r<<16)|(c.g<<8)|c.b) return i;

    abort();

}

#endif

#define SQ(x) ((x)*(x))

#define D(c1,c2) (SQ(R(c1)-R(c2))+SQ(G(c1)-G(c2))+SQ(B(c1)-B(c2)))

main()

{

    Col c[256] = {

	{ 0,0,0 },

	{ 255,255,255 },

	{ 255,0,0 }, { 0,255,0 }, { 0,0,255 },

	{ 255,255,0 }, { 0,255,255 }, { 255,0,255 },

	#define PREALLOC 8

	{ 96,96,96 }, { 192,192,192 },

	//#define PREALLOC 10

    };

    int done[SPACESIZE];

    for (int a=0; a<SPACESIZE; a++) done[a]=0;

    for (int a=0; a<PREALLOC; a++) done[COL(c[a])]=1;

    for (int allocated=PREALLOC; allocated<MAPSIZE; allocated++) {

	int mostdist;

	int dist=0;

	for (int a=0; a<SPACESIZE; a++) {

	    if (!done[a]) {

		int closeness=INT_MAX;

		for (int b=0; b<SPACESIZE; b++) {

		    if (done[b]) {

			int d=D(a,b);

			if (d < closeness) {

			    closeness=d;

			}

		    }

		}

		if (closeness > dist) {

		    mostdist=a;

		    dist=closeness;

		}

	    }

	}

	c[allocated].r=R(mostdist);

	c[allocated].g=G(mostdist);

	c[allocated].b=B(mostdist);

	done[mostdist]=1;

	fprintf(stderr,"Done %d of %d (%06x dist %d)\n",allocated+1,MAPSIZE,

	    qRgb(c[allocated].r, c[allocated].g, c[allocated].b), dist);

    }

    for (int i=0; i<256; i++) {

	printf("0x%06x,%c", qRgb(c[i].r, c[i].g, c[i].b), i%4==3 ? '\n' : ' ');

    }

}