lcd.c

t6963的程序显示图形

unsigned char readate()
{
//	LCD_Busy();
unsigned char date;
     date = lcd_date;
   return (date);

}


/*************************************************************/
//数据写

void writedate(unsigned char date)
{
//	LCD_Busy();

lcd_date=date;
}

/*************************************************************/
//指令写

void writecommand(unsigned char command)//写有 1 个参数命令
{
//	LCD_Busy();
lcd_command=command;
}

void writecommand01(unsigned char date0, unsigned char command)//写有 2 个参数命令
{
	writedate(date0);
	writecommand(command);
}

void writecommand02(unsigned char date1, unsigned char date2, unsigned char command)//写有 3 个参数命令
{
	writedate(date1);
	writedate(date2);
	writecommand(command);
}

/*************************************************************/
//填充或清零

void full_clr (unsigned int state)						
{
	unsigned int i,k;
	writecommand02(0x00,0x00,dis_address);
    writecommand(audo_wr);
for(k=0;k<128;k++)
{
	for(i=0;i<30;i++)
	{	
	writedate(state);
	}
//	state=~state;
}

    writecommand(audo_over);

	writecommand02(0x00,0x00,dis_address);
//writecommand(0xf8);  位操作
}

/*************************************************************/
// 显示行，列

void display(unsigned char state)						
{
	unsigned int i,k;
	writecommand02(0x00,0x00,dis_address);
    writecommand(audo_wr);
for(k=0;k<128;k++)
{
	for(i=0;i<30;i++)
	{	
	writedate(state);
	}
	state=~state;
}
    writecommand(audo_over);

	writecommand02(0x00,0x00,dis_address);
}

/*************************************************************/
//显示一幅图
void img1()						
{
	unsigned char i,m,k;
	unsigned int j=0;
//	writecommand02(0x00,0x00,dis_address);
    writecommand(audo_wr);
for(m=0;m<36;m++)
{	writecommand02(0x00+m,0x00,graphics_address);	
for(k=0;k<128;k++)
{
	for(i=0;i<30;i++)
	{
	writedate(logo1[j]);
	j++;
	}
}
    writecommand(audo_over);
	writecommand02(0x00,0x00,dis_address);	
}
}
/*************************************************************/
//反向显示一幅图

void reverseimg1()						
{
	unsigned char i,k;
	unsigned char j;

for(k=0;k<128;k++)
{
	for(i=0;i<30;i++)
	{	

	writecommand(zer_rd);
	j=readate();
	j=~j;
	writecommand01(j, 0xc0);
	}
}

}


//*****************************************************************
// 通过位操作方式实现绘制点

void dot(unsigned char x,unsigned char y, unsigned char m)
{ 
	unsigned int z;
	z=(30*y+(x/8));
	if(z<=256) 
	writecommand02(z,0x00,dis_address);
	else	
	writecommand02(z%256,z/256,dis_address);

	if(m)
	writecommand(0xf8+7-(x&0x0007));
	else
	writecommand(0xf0+x%8);
}

//*****************************************************************
//通用方式实现点绘制

void dot1(unsigned char x,unsigned char y, unsigned char m)
{ 
	unsigned int z,y0;
	unsigned char n;
	z=(30*y+(x/8));
	if(z<=256) 
	writecommand02(z,0x00,dis_address);
	else	
	writecommand02(z%256,z/256,dis_address);

	writecommand(zer_rd);  /*此处要注意这条指令必须要加上，*/
	y0=readate();
	if(m)
	n=(7-x&0x0007);
	y0|=(1<<n);
    writecommand01(y0,0xc0);
}
//*****************************************************************
//画线

void line(unsigned int x0,unsigned int y0,unsigned int xt,unsigned int yt, unsigned char m)
{
	register unsigned char t;
	int	xerr=0,yerr=0,delta_x,delta_y,distance;
	int	incx,incy;
	unsigned int row,col;
	delta_x	= xt-x0;						
	delta_y	= yt-y0;
	col	= x0;
	row	= y0;
	if(delta_x>0) incx=1;					
	else 
    {
    	if( delta_x==0	) incx=0;			
		else {incx=-1;delta_x=-delta_x;}
	}
		if(delta_y>0) incy=1;
		else
    {
    	if( delta_y==0	) incy=0;			
		else {incy=-1;delta_y=-delta_y;}
	}
		if(	delta_x	> delta_y )	distance=delta_x;	
		else distance=delta_y;

	for( t=0;t <= distance+1; t++ )
	{											
		dot1(col,row,m);

		shortdelay(1000);				
		xerr +=	delta_x	;
		yerr +=	delta_y	;
		
		if(	xerr > distance	)
		{
			xerr-=distance;
			col+=incx;
		}
		if(	yerr > distance	)
		{
			yerr-=distance;
			row+=incy;
		}
	}
}

/*************************************************************************/
//画矩形

void pane(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
	line(x1,y1,x2,y1,1);
	line(x2,y1,x2,y2,1);
	line(x2,y2,x1,y2,1);
	line(x1,y2,x1,y1,1);
}
/***********************************************************************/
//画圆

void circle(unsigned int Ox,unsigned char Oy,unsigned char Rx,unsigned char m)
{
	unsigned int xx,rr,xt,yt,rs,col,row;
	yt=Rx;
	rr=Rx*Rx+1;			
	rs=(yt+(yt>>1))>>1;		//(*0.75)分开1/8圆弧来画
	for (xt=0;xt<=rs;xt++)
	{
		xx=xt*xt;
		while ((yt*yt)>(rr-xx))yt--;
		col=Ox+xt;		//第一象限
		row=Oy-yt;
		dot1(col,row,m);
		col=Ox-xt;		//第二象限
		dot1(col,row,m);
		row=Oy+yt;		//第三象限
		dot1(col,row,m);
		col=Ox+xt;		//第四象限
		dot1(col,row,m);

/***************45度镜象画另一半***************/

		col=Ox+yt;		//第一象限
		row=Oy-xt;
		dot1(col,row,m);
		col=Ox-yt;		//第二象限
		dot1(col,row,m);
		row=Oy+xt;		//第三象限
		dot1(col,row,m);
		col=Ox+yt;		//第四象限
		dot1(col,row,m);
	}
}


/*************************************************************************/