lcd.c

一个多任务实时操作系统

#include "..\Visby\VisbyKernelDef.h"
#include "..\Visby\VisbyDevice.h"

#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

#define __CN_CHAR__
#include "Font\ENCL12.h"			//this is the Lattices of the English Characters.
#ifdef __CN_CHAR__
#include "Font\HZK.h"
#endif


extern Visby_Device	pVisby_Device[];
extern Visby_Task	*pVisby_CurrTask;

#define LCD_XSIZE	320
#define LCD_XINTS	10
#define LCD_YSIZE	240
#define LCD_BUFFERSIZE	(LCD_XSIZE*LCD_YSIZE/8)

#define LCD_CLKVAL	26	//60Mhz LCD_CLKVAL=10 ->151Hz
						//      LCD_CLKVAL=30 -> 52Hz
						//		LCD_CLKVAL=50 -> 31Hz
#define LCD_MVAL_USED	0
#define LCD_MVAL		13

#define LCD_HOZVAL	(LCD_XSIZE/4-1)
#define LCD_LINEVAL	(LCD_YSIZE-1)

#define M5D(n)	((n)&0x1fffff)

unsigned int *frameBuffer;

void LCD_Init()
{
	int i;
	if((unsigned int *)frameBuffer==0)
	    frameBuffer=(unsigned int *)heapalloc(LCD_BUFFERSIZE); 
	rLCDCON1=(0)|(1<<5)|(LCD_MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(LCD_CLKVAL<<12);
	rLCDCON2=(LCD_LINEVAL)|(LCD_HOZVAL<<10)|(10<<21);  
	rLCDSADDR1=(0x0<<27)|(((unsigned int)frameBuffer>>22)<<21)|M5D((unsigned int)frameBuffer>>1);
	rLCDSADDR2=M5D(((unsigned int)frameBuffer+(LCD_XSIZE*LCD_YSIZE/8))>>1)|(LCD_MVAL<<21);
	rLCDSADDR3=LCD_XSIZE/16;
	rLCDCON1=(1)|(1<<5)|(LCD_MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(LCD_CLKVAL<<12);

////////////////////////////////////////////////// Azbo Test Device Manager
	pVisby_Device[DEV_LCD].Type = VB_DEV_ONE;
	pVisby_Device[DEV_LCD].Desc = NULL;
	pVisby_Device[DEV_LCD].pUser = NULL;
	pVisby_Device[DEV_LCD].pWaitTask = NULL;
	
	for(i=0;i<500000;i++);
///////////////////////////////////////////////////////////////////////////
}

void LCD_Cls(unsigned int c)
{
	int i;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return;
		
	for(i=0;i<LCD_XINTS*LCD_YSIZE;i++)
		frameBuffer[i]=c;
}

void LCD_Pixel(unsigned int x,unsigned int y,unsigned char color)
{
    if(x<LCD_XSIZE&&y<LCD_YSIZE)
    {
    	if(color==0)
			frameBuffer[y*LCD_XINTS+(x>>5)]=frameBuffer[y*LCD_XINTS+(x>>5)]&(~(0x80000000>>(x&0x1F)));
		else if(color==1)
			frameBuffer[y*LCD_XINTS+(x>>5)]=frameBuffer[y*LCD_XINTS+(x>>5)]|(0x80000000>>(x&0x1F));
		else if(color==2)
			frameBuffer[y*LCD_XINTS+(x>>5)]=frameBuffer[y*LCD_XINTS+(x>>5)]^(0x80000000>>(x&0x1F));
	}
}

void LCD_LoadBmp(unsigned int* bmp)
{
	int i;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return;
		
	for(i=0;i<LCD_XINTS*LCD_YSIZE;i++)
		frameBuffer[i]=bmp[i];
}

////////////////////////////////////////////////////////////////////////////////////////////////////////

void LCD_Line(int x0,int y0,int x1,int y1,unsigned char Color)
{
	int x,y,sx,sy,e,dx,dy,temp;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return;
		
	dx=x1-x0;
	dy=y1-y0;
	if(!(dx|dy))
		return;
	if(ABS(dx)>ABS(dy))
	{
		if(x0>x1)
		{
			temp=x0;
			x0=x1;
			x1=temp;
			temp=y0;
			y0=y1;
			y1=temp;
		}
		dx=x1-x0;
		dy=y1-y0;
		sy=SIGN(dy);
		dy=ABS(dy);
		e=(dy>>1);
		y=y0;
		for(x=x0;x<=x1;x++)
		{
			LCD_Pixel(x,y,Color);
			e+=dy;
			if(e>=dx)
			{
				y+=sy;
				e-=dx;
			}
		}
	}
	else
	{
		if(y0>y1)
		{
			temp=x0;
			x0=x1;
			x1=temp;
			temp=y0;
			y0=y1;
			y1=temp;
		}
		dx=x1-x0;
		dy=y1-y0;
		sx=SIGN(dx);
		dx=ABS(dx);
		e=(dx>>1);
		x=x0;
		for(y=y0;y<=y1;y++)
		{
			LCD_Pixel(x,y,Color);
			e+=dx;
			if(e>=dy)
			{
				x+=sx;
				e-=dy;
			}
		}
	}
}

void LCD_Bar(int x0,int y0,int x1,int y1,unsigned char LineColor,unsigned char FillColor)
{
	int x,y,temp;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return;
		
	if(x0>x1)
	{
		temp=x0;
		x0=x1;
		x1=temp;
	}
	for(x=x0+1;x<x1;x++)
	{
		for(y=y0+1;y<y1;y++)
			LCD_Pixel(x,y,FillColor);
	}
	for(x=x0;x<=x1;x++)
	{
		LCD_Pixel(x,y0,LineColor);
		LCD_Pixel(x,y1,LineColor);
	}
	for(y=y0+1;y<y1;y++)
	{
		LCD_Pixel(x0,y,LineColor);
		LCD_Pixel(x1,y,LineColor);
	}
}

void LCD_Box(int x0,int y0,int x1,int y1,unsigned char Color)
{
	int x,y,temp;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return;
		
	if(x0>x1)
	{
		temp=x0;
		x0=x1;
		x1=temp;
	}
	for(x=x0;x<=x1;x++)
	{
		LCD_Pixel(x,y0,Color);
		LCD_Pixel(x,y1,Color);
	}
	for(y=y0+1;y<y1;y++)
	{
		LCD_Pixel(x0,y,Color);
		LCD_Pixel(x1,y,Color);
	}
}

int LCD_DrawText(char *str,int x,int y,char ForeColor,char BackColor)	//Color:0-white,1-black,2-reverse,3-lucency
{
	int i,k,n,qu,wei,location;
	if( pVisby_Device[DEV_LCD].pUser != pVisby_CurrTask )return 0;
		
	while(*str)
	{
		if(*str<128)
		{
			for(i=0;i<12;i++)
				for(k=0;k<7;k++)
					if((CL12[*str-32][i]>>k)&0x01)
					{
						if(ForeColor!=3)
							LCD_Pixel(x+k,y+i,ForeColor);
					}
					else
					{
						if(BackColor!=3)
							LCD_Pixel(x+k,y+i,BackColor);
					}
			x+=6;
			str++;
		}
#ifdef __CN_CHAR__
		else
		{
			qu=*(str++)-0xa0;
			wei=*(str++)-0xa0;
			location=qu*94+wei;
			for(n=0;n<NUM_STR;n++)
			{
				if(ZKQW[n]==location)
				{
					for(i=0;i<12;i++)
					{
							for(k=0;k<8;k++)
								if((ZKDATA[n*24+i*2]>>(7-k))&0x01)
								{
									if(ForeColor!=3)
										LCD_Pixel(x+k,y+i,ForeColor);
								}
								else
								{
									if(ForeColor!=3)
										LCD_Pixel(x+k,y+i,BackColor);
								}
							for(k=0;k<4;k++)
								if((ZKDATA[n*24+i*2+1]>>(7-k))&0x01)
								{
									if(ForeColor!=3)
										LCD_Pixel(x+8+k,y+i,ForeColor);
								}
								else
								{
									if(ForeColor!=3)
										LCD_Pixel(x+8+k,y+i,BackColor);
								}
					}
					break;
				}
			}
			x+=12;
		}
#endif
	}
	return x;
}

void LCD_Printf(int x,int y,char ForeColor,char BackColor,char *fmt,...)
{
    va_list ap;
    char string[64];

    va_start(ap,fmt);
    vsprintf(string,fmt,ap);
    LCD_DrawText(string, x, y, ForeColor, BackColor);
    va_end(ap);
}

int LCD_VirtualDrawText(char *str,int x)	//for getting the pixel length of str
{
	while(*str)
	{
		if(*str<128)
		{
			x+=6;
			str++;
		}
#ifdef __CN_CHAR__
		else
		{
			str+=2;
			x+=12;
		}
#endif
	}
	return x;
}