//byte转为BIT
void ByteToBit(char *Out, const char *In, unsigned char bits)
{
unsigned char i;
for(i=0; i<bits; i++)
{
Out[i] = (In[i/8]>>(i%8)) & 1;
}
}
//BIT转为byte
void BitToByte(char * Out, const char *In, unsigned bits)
{
unsigned char i;
memset(Out, 0, (bits+7)/8);
for(i=0; i<bits; i++)
{
Out[i/8] |= In[i]<<(i%8);
}
}
//把位图转为文件，输入bmp文件名和头文件名
int bmp2headfile(char * bmpfile, char * headfile)
{
int infileLen; //文件长度
int n=0,num=1; //n 字节计数器， NUM换行指示
unsigned char c, c_in; //C_in文件字节，C转化
FILE *fh_in;
FILE *fh_out;
char com[256]={0};
char ch[2]={0};
long wid, hig;
assert((bmpfile != NULL) && (headfile != NULL));
fh_in=fopen(bmpfile,"rb");
if (NULL==fh_in)
{
printf("open read file error!!");
return 1;
}
fseek(fh_in,0,SEEK_END);
infileLen=ftell(fh_in);
fseek(fh_in,0,SEEK_SET);
/*读取BMP文件头*/
if (sizeof(file_head)!=fread(&file_head,1,sizeof(file_head),fh_in))
{
printf("read bmp file error!!");
fclose(fh_in);
return 1;
}
/*读取BMP文件信息*/
if (sizeof(fileinfo)!=fread(&fileinfo,1,sizeof(fileinfo),fh_in))
{
printf("read bmp file error!!");
fclose(fh_in);
return 1;
}
/*判断是不是BMP图片*/
if (file_head.bfType!=0x4d42)
{
printf("bmp file error!!");
fclose(fh_in);
return 1;
}
fseek(fh_in,file_head.bfOffBits,SEEK_SET);
fh_out=fopen(headfile,"ab");
if (NULL==fh_out)
{
printf("open write file error!!");
return 1;
}
责任编辑：cyth
