/* * ttt.cpp * * Created on: 2012-12-5 * Author: xy */#include <stdlib.h>#include <stdio.h>#include <string.h>/* part one，14 bit */#pragma pack(2) //以2个字节对齐struct head {short int bfType; //位图类型long int bfsize; //位图文件大小short int freserved1; //必须为0short int freserved2; //必须为0long int bfoffbits; //第54个开始} head;/* part,two, 40 bit */struct info {long int bisize; //本结构站用的字节数 40long biwidth; //位图的宽度long biheight; //位图的高度short int biplanes; //目标设备的级别short int BIBITCOUNT; //每个象素所需的位数long int bigcompression; //位图压缩类型long int bisizeimage; //位图的大小long bixpelspermeter;long biypelspermeter;long int biclrused;long int biclrimportant;} info;#pragma pack()void init_bmp(unsigned int bmp_width,unsigned int bmp_height){info.bisize = 0x28 ;// 本结构的大小40个字节info.biwidth = bmp_width;//位图宽info.biheight= bmp_height;//位图高 要修改info.biplanes = 0;info.BIBITCOUNT = 32 ;// 位图的色深 32是要字节对齐info.bigcompression = 0 ;// 表示不压缩info.bixpelspermeter = bmp_width*bmp_height*4; //位图数据info.bixpelspermeter=0;info.biypelspermeter=0;info.biclrused = 0;info.biclrimportant = 0;head.bfType=0x4d42;//ASICC bmhead.bfsize = bmp_width*bmp_height*4+56; //位图数据 ＋ 数据头head.freserved1=0;head.freserved2=0;head.bfoffbits=0x36;//54}/***************************************************** * 功能：读字库 * 参数：character 传入字符 character_size 字符gb2312码的个数 buf 传出字符在字库中的值 buf_size buf的字节数 * 补充：character传入的字符一定要是gb2312,一定不能是utf-8的。 * **************************************************/int read_data_from_hzk(unsigned char *buf,unsigned int buf_size, char *character,unsigned int character_size){unsigned char qh,wh;//区 位int ret;unsigned long offset;//字库中偏移unsigned int i;FILE *HZK;if(strlen(character)/2!=character_size||buf_size/32!=character_size)//检查是不是gb2312的码{printf("the character is wrong 2 \n");return -1;}for(i=0;i<character_size; i++){unsigned char *p=(unsigned char *)(character+i*2); //两个字节，也就是一个字符偏移一下if(*p<0xa0||*(p+1)<0xa0) //检查是不是gb2312的码{printf("the character is wrong 1 \n");return -1;}qh=p[0]- 0xa0;;wh=p[1]- 0xa0;;offset = (94*(qh-1)+(wh-1))*32; if((HZK=fopen("HZK16","r"))==NULL) { printf("Can't Open hzk16\n"); return -1; } ret=fseek(HZK,offset,SEEK_SET); if(ret<0) { printf("error in fseek\n"); return -1; } ret=fread( buf+i*32,32,1,HZK); //读的时候，每个16*16字符点32个字节 if(ret!=1) { printf("error in fread,the size is %d\n",ret); return -1; }}fclose(HZK);return 0;}/******************************************************* * 功能：在位图中写字，就是把库中读的内容写到位图中 * 参数：character_buf 从字库中读出的字符存在的位置 character_buf_size 字符占用的空间 p 位图数据 p_size位图数据占用的空间 * bmp_width 位图的宽 bmp_height位图的高 *******************************************************/void write_BMP(unsigned char *character_buf,unsigned int character_buf_size ,unsigned char *p,\unsigned int p_size,unsigned int bmp_width,unsigned int bmp_height){//fseek(fp,54,SEEK_SET);//把文件头偏移过去printf("characters_buf_size:%d\n",character_buf_size);unsigned int i,j,k,size;unsigned char *cbuf;for(size=0;size<character_buf_size/32; size++){cbuf=character_buf+size*32; //一个字符战用32个字节for(j=0;j<16;j++){for(i=0;i<2;i++){for(k=0;k<8;k++){if(((cbuf[j*2+i]>>(7-k))&0x1)!=0){printf("x");//*(int *)(p+(200*(2+j)+i*8+k)*4)=0xff000000;//显示在左，左右反的，坐标系统理解不正确//*(int *)(p+200*18*4-(200*(2+j)+i*8+k)*4)=0xff000000;//显示在右边，左右反的，坐标系统理解不正确*(int *)(p+bmp_width*(16+ (bmp_height-16)/2-1 )*4-j*bmp_width*4+i*8*4+k*4+(16*size)*4)=0xff00FF00;//(bmp_height-16)/2-1是想放在bmp的中间位置//指针是unsigned char ，要这样写，这个就可以用了, 第一个字size是0第二个字size是１ 16是字库的边长 200是bmp的长}else{//*(p+(200*(2+j)+i*8+j)*4)=128;printf(" ");}}}printf("\n");}printf("\nsize:%d\n",size);}}int main(){unsigned int bmp_width,bmp_height; //自定义的位图的宽和高bmp_width = 320;bmp_height=200;init_bmp(bmp_width,bmp_height);FILE *fp = fopen("11.bmp","w");fwrite(&head, 1, sizeof(struct head),fp);fwrite(&info, 1, sizeof(struct info),fp);unsigned char *p= (unsigned char *)malloc(bmp_width*bmp_height*4); //分配一个bmp数据的内存memset(p, 0xff, bmp_width*bmp_height*4);//做成白底的unsigned char *buf;//存放从字库中读出来的内容char character[]="２０１２－１２－５ １２：４０：２９";unsigned int character_size=strlen(character)/2;//字库是gb2312的，一个字占两个字节printf("character size:%d\n",character_size);unsigned buf_size=character_size*32;buf=(unsigned char *)malloc(buf_size); //一个16*16的点阵占用32个字节if(read_data_from_hzk(buf , buf_size, character,character_size)<0){printf("read error\n");exit(1);}write_BMP(buf,buf_size,p,1,bmp_width,bmp_height);fwrite(p, bmp_width*bmp_height*4,1, fp);fclose(fp);return 0;}
