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#include "bit.h"
// Bit I/O
//
const unsigned char* inPtr = 0;
int inBytes = 0;
unsigned char* outPtr = 0;
int outBytes = 0;
int bit_buf;
int bit_count;
void init_bits() {
bit_count = bit_buf=0;
}
void put_bits(int n, int x) {
bit_buf |= x<<bit_count;
bit_count += n;
while(bit_count >= 8) {
*outPtr = bit_buf;
outPtr++;
outBytes++;
bit_buf >>= 8;
bit_count -= 8;
}
}
void flush_bits() {
put_bits(7, 0);
bit_count = bit_buf = 0;
}
int get_bits(int n) {
int x;
while(bit_count < n) {
bit_buf |= *inPtr<<bit_count;
inPtr++;
inBytes++;
bit_count += 8;
}
x = bit_buf&((1<<n)-1);
bit_buf >>= n;
bit_count -= n;
return(x);
}
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