📄 lcdpm332.c
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/*
*********************************************************************************************************
* 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 : LCDPM332.C
Purpose : Color conversion routines for -332 mode
---------------------------END-OF-HEADER------------------------------
*/
#include <stddef.h> /* needed for definition of NULL */
#include "LCD_Protected.h" /* inter modul definitions */
/*********************************************************************
*
* LCD_FIXEDPALETTE == -332
*
* 256 colors RRRGGGBB
*
**********************************************************************
*/
int LCD_Color2Index_M332(LCD_COLOR Color) {
int r, g, b;
r = Color & 255;
g = (Color >> 8 ) & 255;
b = Color >> 16;
r = (r * 7 + 127) / 255;
g = (g * 7 + 127) / 255;
b = (b + 42) / 85;
return b + (g << 2) + (r << 5);
}
LCD_COLOR LCD_Index2Color_M332(int Index) {
int r, g, b;
b = (Index & 3) * 85;
g = ((Index >> 2) & 7) * 255 / 7;
r = ((Index >> 5) & 7) * 255 / 7;
return r + (g << 8) + (((U32)b) << 16);
}
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