guiaachar4.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		: GUICharAA.C
Purpose 	: Display antialiased
---------------------------END-OF-HEADER------------------------------
*/

#include "GUI_Private.h"

#if GUI_SUPPORT_AA

#include <stdio.h>
#include <string.h>

/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	Draw
*/
static void Draw(int x0, int y0, int XSize, int YSize, int BytesPerLine, const U8 *pData)
{
	int x, y;
	tLCD_SetPixelAA* pfSetPixelAA;
	pfSetPixelAA = (GUI_Context.TextMode && GUI_TM_TRANS) ? LCD_SetPixelAA : LCD_SetPixelAA_NoTrans;
	for (y = 0; y < YSize; y++)
	{
		const U8*pData0 = pData;
		for (x = 0; x < XSize - 1; x += 2)
		{
			(*pfSetPixelAA) (x + x0, y0 + y, (*pData0) >> 4); /* x0+x changed -> x+x0 to avoid problems with IAR's ICCMC80 */
			(*pfSetPixelAA) (x0 + x + 1, y0 + y, (*pData0++) & 15);
		}
		if (XSize & 1)
		{
			(*pfSetPixelAA) (x0 + x, y0 + y, (*pData0) & 15);
		}
		pData += BytesPerLine;
	}
}

/*********************************************************************
*
*   	GUIPROP_FindChar
*/
static const GUI_FONT_PROP * GUIPROP_FindChar(const GUI_FONT_PROP *pProp, U16P c)
{
	for (pProp = GUI_Context.pAFont->p.pProp; pProp; pProp = (const GUI_FONT_PROP*) pProp->pNext)
	{
		if ((c >= pProp->First) && (c <= pProp->Last))
		{
			break;
		}
	}
	return pProp;
}

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	GUIPROP_AA4_DispChar
*/
void GUIPROP_AA4_DispChar(U16P c)
{
	int BytesPerLine;
	GUI_DRAWMODE DrawMode = GUI_Context.TextMode;
	const GUI_FONT_PROP* pProp = GUIPROP_FindChar(GUI_Context.pAFont->p.pProp, c);
	if (pProp)
	{
		GUI_DRAWMODE OldDrawMode;
		const GUI_CHARINFO* pCharInfo = pProp->paCharInfo + (c - pProp->First);
		BytesPerLine = pCharInfo->BytesPerLine;
		OldDrawMode = LCD_SetDrawMode(DrawMode);
		Draw(GUI_Context.DispPosX, GUI_Context.DispPosY, pCharInfo->XSize, GUI_Context.pAFont->YSize, BytesPerLine, (U8 const *) pCharInfo->pData);
		LCD_SetDrawMode(OldDrawMode); /* Restore draw mode */
		GUI_Context.DispPosX += pCharInfo->XDist;
	}
}

/*********************************************************************
*
*   	GUIPROP_AA4_GetCharDistX
*/
int GUIPROP_AA4_GetCharDistX(U16P c)
{
	const GUI_FONT_PROP* pProp = GUIPROP_FindChar(GUI_Context.pAFont->p.pProp, c);
	return (pProp) ? (pProp->paCharInfo + (c - pProp->First))->XSize : 0;
}

/*********************************************************************
*
*   	GUIPROP_AA4_GetFontInfo
*/
void GUIPROP_AA4_GetFontInfo(const GUI_FONT *pFont, GUI_FONTINFO *pfi)
{
	GUI_USE_PARA(pFont);
	pfi->Flags = GUI_FONTINFO_FLAG_PROP | GUI_FONTINFO_FLAG_AA4;
}

/*********************************************************************
*
*   	GUIPROP_AA4_IsInFont
*/
char GUIPROP_AA4_IsInFont(const GUI_FONT *pFont, U16 c)
{
	const GUI_FONT_PROP* pProp = GUIPROP_FindChar(pFont->p.pProp, c);
	return (pProp == NULL) ? 0 : 1;
}

#else   						 /* Avoid problems with empty object modules */
void GUIAAChar4_C(void);
void GUIAAChar4_C(void)
{
}
#endif /* GUI_SUPPORT_AA */

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