lcdcolor.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 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		: LCDColor.C
Purpose 	: Color conversion routines for LCD-drivers
---------------------------END-OF-HEADER------------------------------
*/

#define LCDCOLOR_C

#include <stddef.h> 		  /* needed for definition of NULL */
#include "GUI_Private.h"
#include "LCD_Private.h"	  /* inter modul definitions & Config */

/*********************************************************************
*
*   	Defines, config defaults
*
**********************************************************************
*/

#ifndef  LCD_SIZEOF_COLORCACHE
#define LCD_SIZEOF_COLORCACHE 0
#endif

#if  LCD_SIZEOF_COLORCACHE
static  const LCD_LOGPALETTE * pLogPalCache;
#endif

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

LCD_PIXELINDEX LCD__aConvTable[LCD_MAX_LOG_COLORS];

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	LCD_GetpPalConvTableUncached
*/
LCD_PIXELINDEX * LCD_GetpPalConvTableUncached(const LCD_LOGPALETTE GUI_UNI_PTR *pLogPal)
{
	if (pLogPal == NULL)
	{
		return NULL;
	}
	if (!pLogPal->pPalEntries)
	{
		return NULL;
	}
	/* Check if sufficient space is available */
	if (pLogPal->NumEntries > LCD_MAX_LOG_COLORS)
	{
		return NULL;
	}
	/* Build conversion table */
	{
		int i;
		int NumEntries = pLogPal->NumEntries;
		const LCD_COLOR GUI_UNI_PTR * pPalEntry = &pLogPal->pPalEntries[0];
		for (i = 0; i < NumEntries; i++)
		{
			LCD__aConvTable[i] = LCD_Color2Index(*(pPalEntry + i));
		}
	}
	return &LCD__aConvTable[0];
}

/*********************************************************************
*
*   	LCD_GetpPalConvTable
*/
LCD_PIXELINDEX * LCD_GetpPalConvTable(const LCD_LOGPALETTE GUI_UNI_PTR *pLogPal)
{
	/* Check cache */
#if  LCD_SIZEOF_COLORCACHE
	if (pLogPalCache == pLogPal)
	{
		return &LCD__aConvTable[0];
	}
	pLogPalCache = pLogPal;
#endif
	return LCD_GetpPalConvTableUncached(pLogPal);
}

/*********************************************************************
*
*   	LCD_InitLUT
*/
void LCD_InitLUT(void)
{
#if (LCD_BITSPERPIXEL <= 8)
	{
		int i;
		for (i = 0; i < LCD_NUM_COLORS; i++)
		{
			LCD_COLOR color = LCD_Index2Color((U8) i);
#if LCD_REVERSE_LUT
			color ^= 0xffffff;    /* Invert R,G,B components */
#endif
			LCD_L0_SetLUTEntry((U8) i, color);
		}
	}
#endif
#if (GUI_NUM_LAYERS > 1)
#if (LCD_BITSPERPIXEL_1 <= 8)
	{
		int i;
		int DisplayOld = GUI_SelectLayer(1);
		for (i = 0; i < LCD_NUM_COLORS_1; i++)
		{
			LCD_COLOR color = LCD_Index2Color((U8) i);
#if LCD_REVERSE_LUT_1
			color ^= 0xffffff;    /* Invert R,G,B components */
#endif
			LCD_L0_1_SetLUTEntry((U8) i, color);
		}
		GUI_SelectLayer(DisplayOld);
	}
#endif
#endif
#if (GUI_NUM_LAYERS > 2)
#if (LCD_BITSPERPIXEL_2 <= 8)
	{
		int i;
		int DisplayOld = GUI_SelectLayer(2);
		for (i = 0; i < LCD_NUM_COLORS_2; i++)
		{
			LCD_COLOR color = LCD_Index2Color((U8) i);
#if LCD_REVERSE_LUT_2
			color ^= 0xffffff;    /* Invert R,G,B components */
#endif
			LCD_L0_2_SetLUTEntry((U8) i, color);
		}
		GUI_SelectLayer(DisplayOld);
	}
#endif
#endif
#if (GUI_NUM_LAYERS > 3)
#if (LCD_BITSPERPIXEL_3 <= 8)
	{
		int i;
		int DisplayOld = GUI_SelectLayer(3);
		for (i = 0; i < LCD_NUM_COLORS_3; i++)
		{
			LCD_COLOR color = LCD_Index2Color((U8) i);
#if LCD_REVERSE_LUT_3
			color ^= 0xffffff;    /* Invert R,G,B components */
#endif
			LCD_L0_3_SetLUTEntry((U8) i, color);
		}
		GUI_SelectLayer(DisplayOld);
	}
#endif
#endif
#if (GUI_NUM_LAYERS > 4)
#if (LCD_BITSPERPIXEL_4 <= 8)
	{
		int i;
		int DisplayOld = GUI_SelectLayer(4);
		for (i = 0; i < LCD_NUM_COLORS_4; i++)
		{
			LCD_COLOR color = LCD_Index2Color((U8) i);
#if LCD_REVERSE_LUT_4
			color ^= 0xffffff;    /* Invert R,G,B components */
#endif
			LCD_L0_4_SetLUTEntry((U8) i, color);
		}
		GUI_SelectLayer(DisplayOld);
	}
#endif
#endif
}

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