📄 lcdp8666_1.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 : LCDP8666_1.C
Purpose : Color conversion routines for 86661 mode
---------------------------END-OF-HEADER------------------------------
*/
#include "LCD_Protected.h" /* inter modul definitions */
/*********************************************************************
*
* Public code,
*
**********************************************************************
*/
/*********************************************************************
*
* LCD_Color2Index_8666_1
*/
unsigned LCD_Color2Index_8666_1(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 + 12 : Index + 28;
}
/*********************************************************************
*
* LCD_Index2Color_8666_1
*/
LCD_COLOR LCD_Index2Color_8666_1(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 < 12) || (Index > 243)) {
return 0; /* Black for illegal indices */
}
if (Index >= 120) {
Index -= 28;
} else {
Index -= 12;
}
r = (Index % 6) * (255 / 5);
g = ((Index / 6) % 6) * (255 / 5);
b = (Index / 36) * (255 / 5);
return r + (g << 8) + ((U32)b << 16);
}
/*********************************************************************
*
* LCD_GetIndexMask_8666_1
*/
unsigned LCD_GetIndexMask_8666_1(void) {
return 0xff;
}
/*************************** End of file ****************************/
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