lcdp4.c

来自「LPC2368驱动淘宝上27元钱的TFT的代码」· C语言 代码 · 共 85 行

/*
*********************************************************************************************************
*   											 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		: LCD4.C
Purpose 	: Color conversion routines for 4 bpp gray LCDs
---------------------------END-OF-HEADER------------------------------
*/

#include "LCD_Protected.h"    /* inter modul definitions */

/*********************************************************************
*
*   	Public data
*
**********************************************************************
*/

#if GUI_SUPPORT_MEMDEV

/*********************************************************************
*
*   	LCD_Color2Index_4
*
* Purpose
*   API table for this color conversion mode. Only used by memory
*   devices in this mode.
*/
const LCD_API_COLOR_CONV LCD_API_ColorConv_4 = {
LCD_Color2Index_4,
LCD_Index2Color_4,
LCD_GetIndexMask_4
};

#endif

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	LCD_Color2Index_4
*/
unsigned LCD_Color2Index_4(LCD_COLOR Color)
{
	int r,g,b;
	r = (Color >> (0 + 4)) & 15;
	g = (Color >> (8 + 4)) & 15;
	b = (Color >> (16 + 4)) & 15;
	return (r + g + b + 1) / 3;
}

/*********************************************************************
*
*   	LCD_Index2Color_4
*/
LCD_COLOR LCD_Index2Color_4(int Index)
{
	return ((U32) Index) * 0x111111;
}

/*********************************************************************
*
*   	LCD_GetIndexMask_4
*/
unsigned LCD_GetIndexMask_4(void)
{
	return 0x0f;
}

/*************************** End of file ****************************/