ZT260/USER/Apps/unicode.c

#include "includes.h"
#include "unicode.h"
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#define GB2312_TO_UNICODE_BASE 0x134000 //起始地址？
#define UNICODE_TO_GB2312_BASE 0x138000

extern const uint16_t GB2312_UNICODE_MAP[];
//extern unsigned short giGB2312[21243][2]; 
//const unsigned short giGBCount=21243;

typedef struct {
  uint16_t unicode;
  uint16_t gb2312;
} unicode_gb2312_map_t;
extern  const unicode_gb2312_map_t UNICODE_GB2312_MAP[];

/*
  MIN_CODE = $A1A1;
  MAX_CODE = $F7FE;
*/
#define GB2312_CODE_ZONE_MIN  0xA1
#define GB2312_CODE_ZONE_MAX  0xF7
#define GB2312_CODE_POS_MIN   0xA1
#define GB2312_CODE_POS_MAX   0xFE



uint16_t
GB2312_to_Unicode(uint16_t c)
{
  uint8_t zone, pos;
  uint32_t offset;
  uint16_t retval;
//	printf("%2x/r",c);
  zone = c >> 8;
  pos = c & 0xFF;
//	printf("%2x-/r",zone);
//	printf("%2x--/r",pos);
  if ((zone > GB2312_CODE_ZONE_MAX) ||
      (zone < GB2312_CODE_ZONE_MIN) ||
      (pos  > GB2312_CODE_POS_MAX) ||
      (pos  < GB2312_CODE_POS_MIN))
  {
    return c;
  }
  offset = (zone - GB2312_CODE_ZONE_MIN) * (GB2312_CODE_POS_MAX - GB2312_CODE_POS_MIN + 1) +
           (pos - GB2312_CODE_POS_MIN);
  //spiFlashBlockRead(GB2312_TO_UNICODE_BASE + offset * 2, (uint8_t *)&retval, 2);
	retval=GB2312_UNICODE_MAP[offset];//offset*2
  return retval;
}



uint16_t
Unicode_to_GB2312(uint16_t c)
{
	int offset;
  int low, high, mid;
  //const unicode_gb2312_map_t *map;
	unicode_gb2312_map_t map;
  if (((c >> 8) == 0) && ((c & 0xFF) < 0x7F))
  {
    return c;
  }
  low = 0;
  high = (GB2312_CODE_ZONE_MAX - GB2312_CODE_ZONE_MIN + 1) *
         (GB2312_CODE_POS_MAX - GB2312_CODE_POS_MIN + 1);

  while (low <= high)
  {
    mid = (low + high) / 2;
  //  spiFlashBlockRead(UNICODE_TO_GB2312_BASE + mid * sizeof(unicode_gb2312_map_t),
  // (uint8_t *)&map, sizeof(unicode_gb2312_map_t));
		//map =  UNICODE_GB2312_MAP[mid];
		//ReadFileData(int FileIndex,u32 startAddr,u32 readLen,unsigned char *pData)
		ReadFileData(UniToGBKIndex, mid * sizeof(unicode_gb2312_map_t),sizeof(unicode_gb2312_map_t),(uint8_t *)&map);	
    if (c > map.unicode)
    {
      low = mid + 1;
    }
    if (c < map.unicode)
    {
      high = mid - 1;
    }
    if (c == map.unicode)
    {
      return map.gb2312;
    }
  }
  return '?'; // 无法识别，替换为 ?
}

uint16_t
Ansi_to_Unicode(uint16_t *dest, uint16_t size, const uint8_t *src, uint16_t length) //GBK_Unicode
{
  uint16_t count = 0;

  while((count < size) && length)
  {
    if ((*src > 0x7F) && (length > 1))
    {
      dest[count] = GB2312_to_Unicode(((uint16_t)src[0] << 8) | src[1]);
      src += 2;
      length -= 2;
    }
    else
    {
      dest[count] = *src;
      src++;
      length--;
    }
    ++count;
  }
  return count;
}


uint16_t
Unicode_to_Ansi(uint8_t *dest, uint16_t size, const uint8_t *src, uint16_t length) //
{
  uint16_t count = 0;
  uint16_t t;

  while((count + 1 < size) && length)
  {
    t = Unicode_to_GB2312(((uint16_t)src[1] << 8) | src[0]);

    if ((t >> 8) == 0)
    {
      *dest++ = t;
      ++count;
    }
    else
    {
      *dest++ = t >> 8;
      *dest++ = t;
      count += 2;
    }
    src += 2;
    length -= 2;
  }
  *dest++ = 0;
  return count;
}

/**************************************************************************************
将字符形式的Unicode转为Ansi
比如：字符串“d89ea48ba47fc47e0000”将转为 "默认群组"
***************************************************************************************/
uint16_t StrUnicodeToAnsi(uint8_t *dest,uint16_t size,const char *src)
{
  uint16_t count = 0;
  uint16_t t;
	int length; 
	uint16_t v;
	char temp[5];	
	
	length=strlen(src); 
	if(length<4) return 0; 
	memset(dest,0,size);
	
  while((count + 1 < size) && length>0)
  {
		
//	temp[0]=src[2];temp[1]=src[3]; //{0x00A4, 0xA1E8},00A4 其实要变成A400 倒过来
//	temp[2]=src[0];temp[3]=src[1];
//	temp[4]=0;
		temp[0]=src[0];temp[1]=src[1]; //{0x00A4, 0xA1E8},00A4 其实要变成A400 倒过来
		temp[2]=src[2];temp[3]=src[3];
		temp[4]=0;
		v=strtol(temp,NULL,16); 
		t = Unicode_to_GB2312(v);
    if ((t >> 8) == 0)
    {
      *dest++ = t;
      ++count;
    }
    else
    {
      *dest++ = t >> 8;
      *dest++ = t;
      count += 2;
    }
    src += 4;
    length -= 4;
  }
  *dest++ = 0;
  return count;
}
/**************************************************************************************
将字符串转字符串形式的StrUnicode
比如：字符串"默认群组"（8字节） 转为 “d89ea48ba47fc47e”（16字节）默认群组的Unicode就是
d89ea48ba47fc47e   {0x6DF1, 0xC9EE},
***************************************************************************************/
//uint16_t
//GB_to_UN(uint16_t c)
//{
//	uint8_t zone, pos;
//	int offset;
//  int low, high, mid;
//  const unicode_gb2312_map_t *map;

//	if (((c >> 8) == 0) && ((c & 0xFF) < 0x7F))
//  {
//    return c;
//  }
//	printf("%2x--/r",c);
//  low = 0;
//  high = (GB2312_CODE_ZONE_MAX - GB2312_CODE_ZONE_MIN + 1) * //8178
//         (GB2312_CODE_POS_MAX - GB2312_CODE_POS_MIN + 1);

//  while (low <= high)
//  {
//    mid = (low + high) / 2;
//		map = &UNICODE_GB2312_MAP[mid];
//		
//    if (c > map->gb2312)
//    {
//      low = mid + 1;
//    }
//    if (c < map->gb2312)
//    {
//      high = mid - 1;
//    }
//    if (c == map->gb2312)
//    {
//      return map->unicode;
//    }
//  }
//  return '?'; // 无法识别，替换为 ?
//}
///**************************************************************************/
//uint16_t  AnsiToStrUnicode(uint16_t *dest,uint16_t size,const char *src)
//{
//  uint16_t count = 0;
//  uint16_t t;
//	int length; 
//	uint16_t v;
//	char temp[5];
//	
//	
//	length=strlen(src); 
//	if(length<2) return 0; //因为后面只留2个0 c9eedbdab0eccac2b4a6 00

//	memset(dest,0,size);
//	printf("%2x/n-->",*src);
//	
//  while((count < size) && length>0)
//  {
//		temp[0]=src[0];temp[1]=src[1]; //{0x6DF1, 0xC9EE},
//		temp[2]=src[2];temp[3]=src[3];
//		temp[4]=0;
//		v=strtol(temp,NULL,16); 
//		printf("%2x/n->",v);
//		if ((v > 0x7F)&& (length > 1)) //(*src > 0x7F) &&
//    {
//      dest[count] = GB_to_UN(v);
//			printf("%2x/n/r",dest[count]);
//      src += 4;
//      length -= 4;	
//    }else{
//      dest[count] = *src;
//      src++;
//      length--;
//				
//    }
//		++count;	
//	}
// 
//  return count;
//}
/********************************************************************************/
uint16_t AnsiToStrUnicode(uint16_t *dest,uint16_t size,const char *src)
{
#if 1
	uint16_t count = 0;
	uint16_t t,v;
	int length; 	
	char temp[5];
	
	unsigned char t1,t2;

	length=strlen(src); 
	if(length<2) return 0; //因为后面只留2个0 c9eedbdab0eccac2b4a6 00
	
	memset(dest,0,size);  //初始化目标
	while((count < size) && length)
  {
		if(src[0] == 0x30 && src[1] == 0x30) return count;
		temp[0]=src[0];temp[1]=src[1]; 
		temp[2]=src[2];temp[3]=src[3];
		temp[4]=0;	
		v=strtol(temp,NULL,16);
		t1=v&0xff;
		t2=(v>>8)&0xff;
		if((t1 > 0x7F) && (t2 > 0x7f) && (length > 1))
		{
      dest[count] = GB2312_to_Unicode(v);
      src += 4;
      length -= 4;
    }
    else 
    {
			t=t2;
			t &= 0xff;
			dest[count] = t;
      src +=2;
      length -=2;
    } 
		++count;
  }
 return 0;
#else
	uint16_t count = 0;
	uint16_t t,v;
	int length; 	
	char temp[5];

	length=strlen(src); 
	if(length<2) return 0; //因为后面只留2个0 c9eedbdab0eccac2b4a6 00
	
	memset(dest,0,size);  //初始化目标
	g_GroupNameLen=0;
//	printf("%2x/n-->",*src);	
	while((count < size) && length)
  {
		temp[0]=src[0];temp[1]=src[1]; 
		temp[2]=src[2];temp[3]=src[3];
		temp[4]=0;	
		v=strtol(temp,NULL,16);
//		printf("%2x/n->",v);
		if(v!=0){g_GroupNameLen++;}else{return 0;}
    if ((v > 0x7F)&&((v>>8) > 0x7F) && (length > 1)) // if ((v > 0x7F)&& (length > 1))
    {
      dest[count] = GB2312_to_Unicode(v);
//			printf("%2x/n/r", dest[count]);
      src += 4;
      length -= 4;
    }
    else 
    {
      dest[count] = *src;
      src++;
      length--;
    } 
		++count;
  }
 return 0;
#endif
}