lcdp2.c

ucgui在ARM44B0目标板上的移植代码支持16级灰度

/*
*********************************************************************************************************
*                                                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        : LCD2.C
Purpose     : Color conversion routines for 4 bpp gray LCDs
---------------------------END-OF-HEADER------------------------------
*/

#include <stdlib.h>
#include "LCD_Protected.h"    /* inter modul definitions */

/*********************************************************************
*
*       LCD_FIXEDPALETTE == 2
*
*       2bpp = 4 gray scales
*
**********************************************************************
*/

int LCD_Color2Index_2(LCD_COLOR Color) {
  int r,g,b;
  r = Color      &255;
  g = (Color>>8) &255;
  b = Color>>16;
  return (r+g+b+127) /255;
}

LCD_COLOR LCD_Index2Color_2(int Index) {
  return ((U32)Index)*0x555555;
}