/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/GUI is protected by international copyright laws. Knowledge of the*              source code may not be used to write a similar product. This file may*              only be used in accordance with a license and should not be redistributed*              in any way. We appreciate your understanding and fairness.*----------------------------------------------------------------------File        : LCD866.CPurpose     : Color conversion routines for 866 mode---------------------------END-OF-HEADER------------------------------*/#include <stddef.h>           /* needed for definition of NULL */#include "LCD_Protected.h"    /* inter modul definitions */int LCD_Color2Index_8666(LCD_COLOR Color) {  int r,g,b,Index;  r = Color&255;  g = (Color>>8)&255;  b = Color>>16;/* Check if image is a gray scale ... */	if ((r==g) && (g==b)) {    return 120+ (r+8)/17;  /* Convert into colors from 120 - 135*/	}/* Convert into the 6*6*6 colors ... */  r = (r*5+127)/255;  g = (g*5+127)/255;  b = (b*5+127)/255;  Index = r+6*g+36*b;  return (Index<108) ? Index : Index+40;}LCD_COLOR LCD_Index2Color_8666(int Index) {  unsigned int r,g;  U32 b;  /* 16 Gray scale range ? */  if ((Index>=120) && (Index<136)) {    return (U32)0x111111 * (U32)(Index-120);	}  if (Index>=108) {    if (Index<148)			return 0;  /* Black for illegal indices */		Index -= 40;	}  r = (Index%6)*(255/5);  g = ((Index/6)%6)*(255/5);  b = (Index/36)*(255/5);  return r+(g<<8)+((U32)b<<16);}