www.pudn.com > ucosv2(GUI).rar > LCDP222.c

/*
*********************************************************************************************************
*                                                uC/GUI
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              µC/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        : LCD222.C 
Purpose     : Color conversion routines for 222 mode 
---------------------------END-OF-HEADER------------------------------ 
*/ 
 
#include            /* needed for definition of NULL */ 
#include "LCD.H"		          /* interface definitions */ 
#include "LCD_Protected.h"    /* inter modul definitions */ 
 
/********************************************************************* 
* 
*       LCD_FIXEDPALETTE == 222 
* 
*       64 colors 
* 
********************************************************************** 
*/ 
 
int LCD_Color2Index_222(LCD_COLOR Color) { 
  int r,g,b; 
  r = ((Color&255)      +0x2a)/0x55; 
  g = (((Color>>8)&255) +0x2a)/0x55; 
  b = (((Color>>16)&255)+0x2a)/0x55; 
  return r+(g<<2)+(b<<4); 
} 
 
LCD_COLOR LCD_Index2Color_222(int Index) { 
  U16P r,g,b; 
  r = ((Index>>0)&3)*0x55; 
  g = ((Index>>2)&3)*0x55; 
  b = (Index>>4)    *0x55; 
  return (((U32)b)<<16)|(g<<8)|r; 
} 
 
/********************************************************************* 
* 
*       LCD_FIXEDPALETTE == 222, Red/Blue swapped 
* 
*       64 colors 
* 
********************************************************************** 
*/ 
 
int LCD_Color2Index_M222(LCD_COLOR Color) { 
  int r,g,b; 
  r = ((Color&255)      +0x2a)/0x55; 
  g = (((Color>>8)&255) +0x2a)/0x55; 
  b = (((Color>>16)&255)+0x2a)/0x55; 
  return b+(g<<2)+(r<<4); 
} 
 
LCD_COLOR LCD_Index2Color_M222(int Index) { 
  U16P r,g,b; 
  r = ((Index>>0)&3)*0x55; 
  g = ((Index>>2)&3)*0x55; 
  b = (Index>>4)    *0x55; 
  return (((U32)r)<<16)|(g<<8)|b; 
}