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#include "../util/masks.h"
#include "bits_be.h"
unsigned int bit_be_bitbuf;
char *bit_be_filestart;
int bit_be_inbytes;
static unsigned int bit_be_subbitbuf;
static int bit_be_bitcount;
void bit_be_fillbuf(n) /* Shift bit_be_bitbuf n bits left, read n bits */
int n;
{
bit_be_bitbuf <<= n;
while (n > bit_be_bitcount) {
bit_be_bitbuf |= bit_be_subbitbuf << (n -= bit_be_bitcount);
if(bit_be_inbytes == 0) {
bit_be_subbitbuf = 0;
} else {
bit_be_subbitbuf = *bit_be_filestart++ & BYTEMASK;
bit_be_inbytes--;
}
bit_be_bitcount = 8;
}
bit_be_bitbuf |= bit_be_subbitbuf >> (bit_be_bitcount -= n);
bit_be_bitbuf &= WORDMASK;
}
unsigned int bit_be_getbits(n)
int n;
{
unsigned int x;
x = bit_be_bitbuf >> (BITBUFSIZ - n);
bit_be_fillbuf(n);
return x;
}
void bit_be_init_getbits()
{
bit_be_bitbuf = 0;
bit_be_subbitbuf = 0;
bit_be_bitcount = 0;
bit_be_fillbuf(BITBUFSIZ);
}
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