gb18030.c

其中包含了GB18030的16*16的点阵字库和算法

addr = CountZkAdr(bm1,bm2,bm3,bm4);
////////////////////////////////////////////////////////////////////////
//函数：CountZkAdr(unsigned char c1, unsigned char c2, unsigned char c3, unsigned char c4)
//功能：计算汉字点阵在芯片中的地址
//参数：c1,c2,c3,c4：4字节汉字内码通过参数c1,c2,c3,c4传入，双字节内码通过参数c1,c2传入，c3=0,c4=0
//返回：汉字点阵的字节地址(byte address)。如果用户是按 word mode 读取点阵数据，则其地址(word
//address)为字节地址除以2，即：word address = byte address / 2 .
//例如：“啊”字的内码为0xb0a1,则byte address = g(0xb0,0xa1,0x00,0x00) *32+0xa7700
//word address = byte address / 2
//“ ”字的内码为0x8139ee39,则byte address = g(0x81,0x39,0xee,0x39) *32+0xa7700
//word address = byte address / 2
//说明：在以上计算字节地址中byte address = g(0xb0,0xa1,0x00,0x00) *32+0xa7700的0xa7700是15X16
//点阵字库相对整个字库芯片0000 0000的偏移地址
/////////////////////////////////////////////////////////////////////////////

unsigned int CountZkAdr(unsigned char c1, unsigned char c2, unsigned char c3, unsigned char c4)
{
	unsigned int h;

	if(c1 >= 0xb0 && c2 >= 0xA1 && c3 == 0 && c4 == 0)//汉字2区	B0A1 --- F7FE  0xAF8C0
	{
		return (unsigned int)((c1-0xB0)*94+(c2-0xA1))*32+0xAF8C0;
	}
	else if(c1 >= 0xAA && c2 >= 0x40 && c3 == 0 && c4 == 0)//16点阵4区汉字		AA40 --- FEAE  0x113EC0
	{
		if(c2>0x7f)c2--;
		if(c2 > 0xA0)	c2 = 0x40;
		return (unsigned int)((c1-0xAA)*96+(c2-0x40))*32+0x113EC0;
	}
	else if(c1 >= 0xA8 && c3 == 0 && c4 == 0)//字符5区	A840 --- A996  0xAE0C0
	{
		if(c1>=0xA8 && c2>=0xA1);
		else if(c2>0x7f)c2--;
		if(c2>=0xA1)
			return (unsigned int)((c1-0xA1)*94+(c2-0xA1))*32+0xA7700;
		else
			return (unsigned int)((c1-0xA8)*96+(c2-0x40))*32+0xAE0C0;
	}

	else if(c1 >= 0xA1 && c3 == 0 && c4 == 0)//字符1区	A1A1 --- A9FE  0xA7700
	{
		return (unsigned int)((c1-0xA1)*94+(c2-0xA1))*32+0xA7700;
	}
	else if(c1 >= 0x81 && c3 == 0 && c4 == 0)//汉字3区	8140 --- A0FE  0xE46C0
	{
		if(c2>0x7f)c2--;
		return (unsigned int)((c1-0x81)*190+(c2-0x40))*32+0xE46C0;
	}
	else if(c2>=0x30)//汉字4区
	{
//	four bytes HZ
		h=(((unsigned int)(c1-0x81)*10+(c2-0x30))*126+(unsigned int)(c3-0x81))*10+(c4-0x30);
		h-=12439;
		//if(h<0 || h>=6530) return(0);
		if(h>=6530) return(0);
		h += 22046;
		return h*32+0xA7700;
	}
	return 0;
}



//字节倒序  eg: D7....D0 H--->L 转换后为 L -->H D0....D7
unsigned char ByteReverseOrder(unsigned char dbyte)
{
	unsigned char i,buff;
	buff=0;
	for(i=0;i<8;i++)
	{
		buff<<=1;
		buff|=(dbyte>>i)&0x01;
	}
	return buff;
}

//进行8×8点矩阵转换  ConIn 要进行转换的数据指针  ConOut 转换后的数据指针
void ByteConversion_8(unsigned char *ConIn,unsigned char *ConOut)
{
	unsigned char i,j;
//	memcpy(ConOut,ConIn,8);
	for(i=0;i<8;i++)
	{
		ConOut[i]=0;
		for(j=0;j<8;j++)
		{
			ConOut[i]<<=1;
			ConOut[i]|=(ByteReverseOrder(ConIn[j])>>(7-i))&0x01;
		}
	}
}