5
static void check_buffer_range(int size)
7
int pos = (bsi.wordpointer-bsbuf) + (size>>3);
10
fprintf(stderr,"Pointer out of range (%d,%d)!\n",pos,fsizeold);
15
void backbits(int number_of_bits)
17
bsi.bitindex -= number_of_bits;
18
bsi.wordpointer += (bsi.bitindex>>3);
22
int getbitoffset(void)
24
return (-bsi.bitindex)&0x7;
31
fprintf(stderr,"getbyte called unsynched!\n");
33
return *bsi.wordpointer++;
36
unsigned int getbits(int number_of_bits)
41
fprintf(stderr,"g%d",number_of_bits);
48
check_buffer_range(number_of_bits+bsi.bitindex);
52
rval = bsi.wordpointer[0];
54
rval |= bsi.wordpointer[1];
56
rval |= bsi.wordpointer[2];
58
rval <<= bsi.bitindex;
61
bsi.bitindex += number_of_bits;
63
rval >>= (24-number_of_bits);
65
bsi.wordpointer += (bsi.bitindex>>3);
70
fprintf(stderr,":%x ",rval);
76
unsigned int getbits_fast(int number_of_bits)
80
fprintf(stderr,"g%d",number_of_bits);
84
check_buffer_range(number_of_bits+bsi.bitindex);
87
rval = (unsigned char) (bsi.wordpointer[0] << bsi.bitindex);
88
rval |= ((unsigned int) bsi.wordpointer[1]<<bsi.bitindex)>>8;
89
rval <<= number_of_bits;
92
bsi.bitindex += number_of_bits;
94
bsi.wordpointer += (bsi.bitindex>>3);
98
fprintf(stderr,":%x ",rval);
103
unsigned int get1bit(void)
108
fprintf(stderr,"g%d",1);
112
check_buffer_range(1+bsi.bitindex);
115
rval = *bsi.wordpointer << bsi.bitindex;
118
bsi.wordpointer += (bsi.bitindex>>3);
122
fprintf(stderr,":%d ",rval>>7);