[3365] | 1 | /**************************************************************************
|
---|
| 2 | *
|
---|
| 3 | * bitio_gen.h -- General supoport routines for bitio
|
---|
| 4 | * Copyright (C) 1994 Neil Sharman and Alistair Moffat
|
---|
| 5 | *
|
---|
| 6 | * This program is free software; you can redistribute it and/or modify
|
---|
| 7 | * it under the terms of the GNU General Public License as published by
|
---|
| 8 | * the Free Software Foundation; either version 2 of the License, or
|
---|
| 9 | * (at your option) any later version.
|
---|
| 10 | *
|
---|
| 11 | * This program is distributed in the hope that it will be useful,
|
---|
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 14 | * GNU General Public License for more details.
|
---|
| 15 | *
|
---|
| 16 | * You should have received a copy of the GNU General Public License
|
---|
| 17 | * along with this program; if not, write to the Free Software
|
---|
| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
| 19 | *
|
---|
| 20 | **************************************************************************
|
---|
| 21 | *
|
---|
| 22 | * This file contains function definitions for doing general bitio operations.
|
---|
| 23 | *
|
---|
| 24 | * This file defines functions for calculation the length in bits of a number
|
---|
| 25 | * coded unary, binary, delta, gamma, elias, and bblock coding. It defines
|
---|
| 26 | * routines for calculating the parameter and bounds for bblock coding.
|
---|
| 27 | * Routines for calculating ceil and floor lg are also defined.
|
---|
| 28 | *
|
---|
| 29 | *
|
---|
| 30 | **************************************************************************/
|
---|
| 31 |
|
---|
| 32 | #ifndef H_BITIO_GEN
|
---|
| 33 | #define H_BITIO_GEN
|
---|
| 34 |
|
---|
[25147] | 35 | mg_u_long BIO_Unary_Length (mg_u_long val);
|
---|
[3365] | 36 |
|
---|
[25147] | 37 | mg_u_long BIO_Binary_Length (mg_u_long val, mg_u_long b);
|
---|
[3365] | 38 |
|
---|
[25147] | 39 | mg_u_long BIO_Gamma_Length (mg_u_long val);
|
---|
[3365] | 40 |
|
---|
[25147] | 41 | mg_u_long BIO_Delta_Length (mg_u_long val);
|
---|
[3365] | 42 |
|
---|
[25147] | 43 | mg_u_long BIO_Elias_Length (mg_u_long val, mg_u_long b, double s);
|
---|
[3365] | 44 |
|
---|
[25147] | 45 | mg_u_long BIO_Bblock_Length (mg_u_long val, mg_u_long b);
|
---|
[3365] | 46 |
|
---|
| 47 | int BIO_Bblock_Init (int N, int p);
|
---|
| 48 |
|
---|
| 49 | int BIO_Bblock_Init_W (int N, int p);
|
---|
| 50 |
|
---|
| 51 | int BIO_Bblock_Bound_b (int N, int p, int b);
|
---|
| 52 |
|
---|
| 53 | int BIO_Bblock_Bound (int N, int p);
|
---|
| 54 |
|
---|
| 55 | int BIO_Gamma_Bound (int N, int p);
|
---|
| 56 |
|
---|
| 57 | int floorlog_2 (int b);
|
---|
| 58 |
|
---|
| 59 | int ceillog_2 (int b);
|
---|
| 60 |
|
---|
| 61 | #endif
|
---|