【c++】点阵字库提取汉字转位图

帮同学做的，由于时间仓促，从网上找来一些代码，拼拼凑凑出来这样一个结果。

实现的主要功能是从点阵字库（.FONT）中提取某个汉字或者提取某段汉字另外为图片

矢量字库通过一些软件可转为点阵字库

#include  
#include 
#include 
#include 
#include 

#define size 32
#define sum (size*size/8)

void convert(unsigned char qh,unsigned char wh);
void Snapshot( BYTE * pData, int width, int height,  char * filename );

typedef long LONG;
typedef unsigned char BYTE;
typedef unsigned long DWORD;
typedef unsigned short WORD;

typedef struct {
	WORD    bfType;
	DWORD   bfSize;
	WORD    bfReserved1;
	WORD    bfReserved2;
	DWORD   bfOffBits;
} BMPFILEHEADER_T;

struct BMPFILEHEADER_S{
	WORD    bfType;
	DWORD   bfSize;
	WORD    bfReserved1;
	WORD    bfReserved2;
	DWORD   bfOffBits;
};

typedef struct{
	DWORD      biSize;
	LONG       biWidth;
	LONG       biHeight;
	WORD       biPlanes;
	WORD       biBitCount;
	DWORD      biCompression;
	DWORD      biSizeImage;
	LONG       biXPelsPerMeter;
	LONG       biYPelsPerMeter;
	DWORD      biClrUsed;
	DWORD      biClrImportant;
} BMPINFOHEADER_T;

int main()
{
	//提取某段汉字
	for (unsigned char i=16;i<=16;i++)
	{
		for (unsigned char j=1;j<=3;j++)
		{
			convert(i,j);
		}
	}

	//提取某个汉字
	unsigned char incode[3] = "我";
	unsigned char qh = incode[0] - 0xa0; //获得区码  
	unsigned char wh = incode[1] - 0xa0; //获得位码
	convert(qh,wh);

	return 0;
}


void convert(unsigned char qh,unsigned char wh) 
{    
	unsigned long offset = 0;

	unsigned char mat[sum][size/8] = {0} ; //mat[sum][2]

	struct {
		BYTE b;
		BYTE g;
		BYTE r;
	} pRGB[size][size];  // 定义位图数据
	memset( pRGB, 0, sizeof(pRGB) ); // 设置背景为黑色

	char  hz[64];
	FILE* HZK = NULL;

	sprintf(hz , "HZK%d" , size);

	HZK = fopen(hz , "rb");
	offset = (94*(qh-1)+(wh-1))*sum; //得到偏移位置

	if( HZK == NULL)  
		//fail to open file
	{  
		printf("Can't Open hzk%d\n" , size);  
		getchar(); 
		return ; 
	}
	fseek(HZK, offset, SEEK_SET); 
	fread(mat, sum , 1, HZK);
	fclose(HZK); 
	int col=0;
	int row=0;
	//显示 
	for(int i=0; i>k))
				{//测试为1的位则显示 
					//汉字颜色
					//printf("1");
					pRGB[size-1-row][col-size*row].r = 0xff;//bmp中的行坐标倒序
					pRGB[size-1-row][col-size*row].g = 0xff;
					pRGB[size-1-row][col-size*row].b = 0xff;
				} 
				else 
				{	//背景色
					//printf("0");
					pRGB[size-1-row][col-size*row].r = 0x00;//bmp中的行坐标倒序
					pRGB[size-1-row][col-size*row].g = 0x00;
					pRGB[size-1-row][col-size*row].b = 0x00;
				} 
				col++;
			}//for
		}//for
		//printf("\n"); 
		row++;
	}//for
	char filename[9];
	sprintf(filename,"%2d%2d.bmp",qh,wh);
	if (wh<10)
		filename[2]='0';
	if (qh<10)
		filename[0]='0';
	Snapshot( ( BYTE*)pRGB, size, size, filename);
}



void Snapshot( BYTE * pData, int width, int height,  char * filename )
{
	int bmpsize = width*height*3; // 每个像素点3个字节

	// 位图第一部分，文件信息
	BMPFILEHEADER_T bfh;
	bfh.bfType = 0x4d42;  //bm
	bfh.bfSize = bmpsize  // data size
		+ sizeof( BMPFILEHEADER_T ) // first section size
		+ sizeof( BMPINFOHEADER_T ) // second section size
		;
	bfh.bfReserved1 = 1; // reserved 
	bfh.bfReserved2 = 0; // reserved
	bfh.bfOffBits = bfh.bfSize - bmpsize;
	// 位图第二部分，数据信息
	BMPINFOHEADER_T bih;
	bih.biSize = sizeof(BMPINFOHEADER_T);
	bih.biWidth = width;
	bih.biHeight = height;
	bih.biPlanes = 1;
	bih.biBitCount = 24;
	bih.biCompression = 0;
	bih.biSizeImage = bmpsize;
	bih.biXPelsPerMeter = 0;
	bih.biYPelsPerMeter = 0;
	bih.biClrUsed = 0;
	bih.biClrImportant = 0;       

	FILE * fp = fopen(filename,"wb");
	if( !fp ) return;

	fwrite( &bfh, 1, sizeof(BMPFILEHEADER_T), fp );
	fwrite( &bih, 1, sizeof(BMPINFOHEADER_T), fp );
	fwrite( pData, 1, bmpsize, fp );
	fclose( fp );
}

 

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