1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* This is a very slightly modified version of perf/bz2.c, with a 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown single change that causes it to overrun a global array by one byte. 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The change in question is a change of the size of myprintf_buf from 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1000 to 70, at line 1278. ptrcheck should report exactly one 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown error, resulting from an out of range access to this array. */ 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// This benchmark is basically bzip2 (mashed to be a single file) 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// compressing and decompressing some data. It tests Valgrind's handling of 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// realistic and "difficult" (ie. lots of branches and memory accesses) 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// integer code. Execution is spread out over quite a few basic blocks; 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// --profile-flags indicates that to get to the top 90%th percentile of 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// dynamic BB counts requires considering the top 51 basic blocks 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// This program can be used both as part of the performance test 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// suite, in which case we want it to run for quite a while, 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// and as part of the regression (correctness) test suite, in 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// which case we want it to run quickly and be verbose. 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// So it does the latter iff given a command line arg. 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Licensing: the code within is mostly taken from bzip2, which has a BSD 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// license. There is a little code from VEX, which is licensed under GPLv2 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// And it's all written by Julian Seward. 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_NO_STDIO 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Private header file for the library. ---*/ 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- bzlib_private.h ---*/ 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 83ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 84ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 85ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 86ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 87ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 88ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef _BZLIB_PRIVATE_H 89ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define _BZLIB_PRIVATE_H 90ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 91ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdlib.h> 92ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 93ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 94ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdio.h> 95ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <ctype.h> 96ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <string.h> 97ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 98ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 99ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Public header file for the library. ---*/ 102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- bzlib.h ---*/ 103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef _BZLIB_H 161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define _BZLIB_H 162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef __cplusplus 164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern "C" { 165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RUN 0 168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_FLUSH 1 169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_FINISH 2 170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_OK 0 172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RUN_OK 1 173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_FLUSH_OK 2 174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_FINISH_OK 3 175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_STREAM_END 4 176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_SEQUENCE_ERROR (-1) 177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_PARAM_ERROR (-2) 178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_MEM_ERROR (-3) 179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_DATA_ERROR (-4) 180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_DATA_ERROR_MAGIC (-5) 181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_IO_ERROR (-6) 182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_UNEXPECTED_EOF (-7) 183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_OUTBUFF_FULL (-8) 184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_CONFIG_ERROR (-9) 185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef 187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown struct { 188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char *next_in; 189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int avail_in; 190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int total_in_lo32; 191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int total_in_hi32; 192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char *next_out; 194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int avail_out; 195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int total_out_lo32; 196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int total_out_hi32; 197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void *state; 199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void *(*bzalloc)(void *,int,int); 201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void (*bzfree)(void *,void *); 202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void *opaque; 203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream; 205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_IMPORT 208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_EXPORT 209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Need a definitition for FILE */ 213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdio.h> 214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef _WIN32 217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# include <windows.h> 218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# ifdef small 219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* windows.h define small to char */ 220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# undef small 221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# endif 222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# ifdef BZ_EXPORT 223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_API(func) WINAPI func 224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_EXTERN extern 225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# else 226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* import windows dll dynamically */ 227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_API(func) (WINAPI * func) 228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_EXTERN 229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# endif 230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_API(func) func 232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_EXTERN extern 233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Core (low-level) library functions --*/ 237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzCompressInit) ( 239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm, 240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor 243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzCompress) ( 246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm, 247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int action 248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzCompressEnd) ( 251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm 252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzDecompressInit) ( 255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream *strm, 256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small 258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzDecompress) ( 261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm 262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) ( 265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream *strm 266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- High(er) level library functions --*/ 271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_MAX_UNUSED 5000 274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef void BZFILE; 276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) ( 278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE* f, 280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small, 282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* unused, 283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int nUnused 284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzReadClose) ( 287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b 289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) ( 292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void** unused, 295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* nUnused 296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzRead) ( 299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len 303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) ( 306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE* f, 308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor 311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzWrite) ( 314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len 318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzWriteClose) ( 321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int abandon, 324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in, 325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out 326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzWriteClose64) ( 329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* bzerror, 330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int abandon, 332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in_lo32, 333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in_hi32, 334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out_lo32, 335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out_hi32 336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Utility functions --*/ 341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) ( 343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* dest, 344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* destLen, 345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* source, 346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int sourceLen, 347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor 350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) ( 353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* dest, 354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* destLen, 355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* source, 356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int sourceLen, 357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small, 358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity 359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Code contributed by Yoshioka Tsuneo 364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp), 365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown to support better zlib compatibility. 366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This code is not _officially_ part of libbzip2 (yet); 367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown I haven't tested it, documented it, or considered the 368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown threading-safeness of it. 369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown If this code breaks, please contact both Yoshioka and me. 370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) ( 373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void 374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) ( 378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *path, 379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *mode 380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) ( 383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int fd, 384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *mode 385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzread) ( 388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len 391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzwrite) ( 394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len 397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN int BZ_API(BZ2_bzflush) ( 400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b 401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN void BZ_API(BZ2_bzclose) ( 404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b 405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ_EXTERN const char * BZ_API(BZ2_bzerror) ( 408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE *b, 409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int *errnum 410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef __cplusplus 414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end bzlib.h ---*/ 421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- General stuff. --*/ 427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_VERSION "1.0.3, 17-Oct-2004" 429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef char Char; 431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned char Bool; 432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned char UChar; 433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef int Int32; 434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned int UInt32; 435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef short Int16; 436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned short UInt16; 437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define True ((Bool)1) 439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define False ((Bool)0) 440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef __GNUC__ 442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define __inline__ /* */ 443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void BZ2_bz__AssertH__fail ( int errcode ); 447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define AssertH(cond,errcode) \ 448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { if (!(cond)) BZ2_bz__AssertH__fail ( errcode ); } 449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if BZ_DEBUG 450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define AssertD(cond,msg) \ 451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { if (!(cond)) { \ 452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf ( stderr, \ 453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "\n\nlibbzip2(debug build): internal error\n\t%s\n", msg );\ 454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown exit(1); \ 455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }} 456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define AssertD(cond,msg) /* */ 458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf0(zf) \ 460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf) 461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf1(zf,za1) \ 462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf,za1) 463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf2(zf,za1,za2) \ 464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf,za1,za2) 465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf3(zf,za1,za2,za3) \ 466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf,za1,za2,za3) 467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf4(zf,za1,za2,za3,za4) \ 468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf,za1,za2,za3,za4) 469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf5(zf,za1,za2,za3,za4,za5) \ 470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fprintf(stderr,zf,za1,za2,za3,za4,za5) 471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void bz_internal_error ( int errcode ); 473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define AssertH(cond,errcode) \ 474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { if (!(cond)) bz_internal_error ( errcode ); } 475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define AssertD(cond,msg) /* */ 476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf0(zf) \ 477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf) 478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf1(zf,za1) \ 479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf,za1) 480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf2(zf,za1,za2) \ 481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf,za1,za2) 482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf3(zf,za1,za2,za3) \ 483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf,za1,za2,za3) 484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf4(zf,za1,za2,za3,za4) \ 485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf,za1,za2,za3,za4) 486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VPrintf5(zf,za1,za2,za3,za4,za5) \ 487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf(zf,za1,za2,za3,za4,za5) 488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZALLOC(nnn) (strm->bzalloc)(strm->opaque,(nnn),1) 492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZFREE(ppp) (strm->bzfree)(strm->opaque,(ppp)) 493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Header bytes. --*/ 496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_HDR_B 0x42 /* 'B' */ 498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_HDR_Z 0x5a /* 'Z' */ 499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_HDR_h 0x68 /* 'h' */ 500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_HDR_0 0x30 /* '0' */ 501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Constants for the back end. --*/ 503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_MAX_ALPHA_SIZE 258 505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_MAX_CODE_LEN 23 506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RUNA 0 508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RUNB 1 509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_GROUPS 6 511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_G_SIZE 50 512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_ITERS 4 513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_MAX_SELECTORS (2 + (900000 / BZ_G_SIZE)) 515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Stuff for randomising repetitive blocks. --*/ 519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern Int32 BZ2_rNums[512]; 521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RAND_DECLS \ 523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 rNToGo; \ 524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 rTPos \ 525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RAND_INIT_MASK \ 527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rNToGo = 0; \ 528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rTPos = 0 \ 529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RAND_MASK ((s->rNToGo == 1) ? 1 : 0) 531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_RAND_UPD_MASK \ 533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->rNToGo == 0) { \ 534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rNToGo = BZ2_rNums[s->rTPos]; \ 535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rTPos++; \ 536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->rTPos == 512) s->rTPos = 0; \ 537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rNToGo--; 539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Stuff for doing CRCs. --*/ 543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern UInt32 BZ2_crc32Table[256]; 545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_INITIALISE_CRC(crcVar) \ 547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown crcVar = 0xffffffffL; \ 549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_FINALISE_CRC(crcVar) \ 552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown crcVar = ~(crcVar); \ 554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_UPDATE_CRC(crcVar,cha) \ 557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown crcVar = (crcVar << 8) ^ \ 559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_crc32Table[(crcVar >> 24) ^ \ 560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar)cha)]; \ 561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- States and modes for compression. --*/ 566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_M_IDLE 1 568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_M_RUNNING 2 569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_M_FLUSHING 3 570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_M_FINISHING 4 571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_S_OUTPUT 1 573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_S_INPUT 2 574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_RADIX 2 576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_QSORT 12 577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_SHELL 18 578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_N_OVERSHOOT (BZ_N_RADIX + BZ_N_QSORT + BZ_N_SHELL + 2) 579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Structure holding all the compression-side stuff. --*/ 584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef 586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown struct { 587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* pointer back to the struct bz_stream */ 588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm; 589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* mode this stream is in, and whether inputting */ 591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* or outputting data */ 592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 mode; 593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 state; 594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* remembers avail_in when flush/finish requested */ 596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 avail_in_expect; 597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for doing the block sorting */ 599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* arr1; 600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* arr2; 601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ftab; 602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 origPtr; 603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* aliases for arr1 and arr2 */ 605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ptr; 606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block; 607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* mtfv; 608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* zbits; 609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for deciding when to use the fallback sorting algorithm */ 611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 workFactor; 612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* run-length-encoding of the input */ 614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 state_in_ch; 615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 state_in_len; 616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_DECLS; 617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* input and output limits and current posns */ 619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock; 620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblockMAX; 621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 numZ; 622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 state_out_pos; 623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* map of bytes used in block */ 625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nInUse; 626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool inUse[256]; 627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar unseqToSeq[256]; 628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* the buffer for bit stream creation */ 630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 bsBuff; 631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 bsLive; 632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* block and combined CRCs */ 634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 blockCRC; 635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 combinedCRC; 636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* misc administratium */ 638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 verbosity; 639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 blockNo; 640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 blockSize100k; 641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* stuff for coding the MTF values */ 643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nMTF; 644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 mtfFreq [BZ_MAX_ALPHA_SIZE]; 645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar selector [BZ_MAX_SELECTORS]; 646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar selectorMtf[BZ_MAX_SELECTORS]; 647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 rfreq [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* second dimension: only 3 needed; 4 makes index calculations faster */ 652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 len_pack[BZ_MAX_ALPHA_SIZE][4]; 653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EState; 656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- externs for compression. --*/ 660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_blockSort ( EState* ); 663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_compressBlock ( EState*, Bool ); 666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_bsInitWrite ( EState* ); 669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_hbAssignCodes ( Int32*, UChar*, Int32, Int32, Int32 ); 672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_hbMakeCodeLengths ( UChar*, Int32*, Int32, Int32 ); 675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- states for decompression. --*/ 679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_IDLE 1 681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_OUTPUT 2 682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAGIC_1 10 684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAGIC_2 11 685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAGIC_3 12 686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAGIC_4 13 687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_1 14 688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_2 15 689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_3 16 690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_4 17 691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_5 18 692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BLKHDR_6 19 693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BCRC_1 20 694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BCRC_2 21 695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BCRC_3 22 696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_BCRC_4 23 697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_RANDBIT 24 698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ORIGPTR_1 25 699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ORIGPTR_2 26 700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ORIGPTR_3 27 701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAPPING_1 28 702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MAPPING_2 29 703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_SELECTOR_1 30 704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_SELECTOR_2 31 705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_SELECTOR_3 32 706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CODING_1 33 707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CODING_2 34 708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CODING_3 35 709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_1 36 710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_2 37 711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_3 38 712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_4 39 713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_5 40 714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_MTF_6 41 715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ENDHDR_2 42 716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ENDHDR_3 43 717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ENDHDR_4 44 718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ENDHDR_5 45 719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_ENDHDR_6 46 720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CCRC_1 47 721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CCRC_2 48 722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CCRC_3 49 723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_X_CCRC_4 50 724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Constants for the fast MTF decoder. --*/ 728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MTFA_SIZE 4096 730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MTFL_SIZE 16 731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Structure holding all the decompression-side stuff. --*/ 735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef 737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown struct { 738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* pointer back to the struct bz_stream */ 739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm; 740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* state indicator for this stream */ 742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 state; 743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for doing the final run-length decoding */ 745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar state_out_ch; 746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 state_out_len; 747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool blockRandomised; 748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_DECLS; 749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* the buffer for bit stream reading */ 751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 bsBuff; 752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 bsLive; 753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* misc administratium */ 755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 blockSize100k; 756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool smallDecompress; 757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 currBlockNo; 758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 verbosity; 759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for undoing the Burrows-Wheeler transform */ 761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 origPtr; 762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 tPos; 763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 k0; 764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 unzftab[256]; 765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock_used; 766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 cftab[257]; 767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 cftabCopy[257]; 768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for undoing the Burrows-Wheeler transform (FAST) */ 770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 *tt; 771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for undoing the Burrows-Wheeler transform (SMALL) */ 773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 *ll16; 774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar *ll4; 775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* stored and calculated CRCs */ 777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 storedBlockCRC; 778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 storedCombinedCRC; 779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 calculatedBlockCRC; 780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 calculatedCombinedCRC; 781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* map of bytes used in block */ 783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nInUse; 784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool inUse[256]; 785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool inUse16[16]; 786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar seqToUnseq[256]; 787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* for decoding the MTF values */ 789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar mtfa [MTFA_SIZE]; 790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 mtfbase[256 / MTFL_SIZE]; 791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar selector [BZ_MAX_SELECTORS]; 792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar selectorMtf[BZ_MAX_SELECTORS]; 793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 limit [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 base [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 perm [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 minLens[BZ_N_GROUPS]; 799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* save area for scalars in the main decompress code */ 801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_i; 802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_j; 803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_t; 804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_alphaSize; 805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_nGroups; 806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_nSelectors; 807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_EOB; 808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_groupNo; 809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_groupPos; 810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_nextSym; 811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_nblockMAX; 812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_nblock; 813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_es; 814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_N; 815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_curr; 816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_zt; 817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_zn; 818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_zvec; 819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_zj; 820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_gSel; 821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 save_gMinlen; 822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* save_gLimit; 823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* save_gBase; 824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* save_gPerm; 825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DState; 828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- Macros for decompression. --*/ 832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_GET_FAST(cccc) \ 834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos = s->tt[s->tPos]; \ 835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cccc = (UChar)(s->tPos & 0xff); \ 836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos >>= 8; 837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_GET_FAST_C(cccc) \ 839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_tPos = c_tt[c_tPos]; \ 840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cccc = (UChar)(c_tPos & 0xff); \ 841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_tPos >>= 8; 842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SET_LL4(i,n) \ 844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { if (((i) & 0x1) == 0) \ 845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0xf0) | (n); else \ 846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll4[(i) >> 1] = (s->ll4[(i) >> 1] & 0x0f) | ((n) << 4); \ 847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_LL4(i) \ 850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((((UInt32)(s->ll4[(i) >> 1])) >> (((i) << 2) & 0x4)) & 0xF) 851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SET_LL(i,n) \ 853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { s->ll16[i] = (UInt16)(n & 0x0000ffff); \ 854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SET_LL4(i, n >> 16); \ 855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_LL(i) \ 858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (((UInt32)s->ll16[i]) | (GET_LL4(i) << 16)) 859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_GET_SMALL(cccc) \ 861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cccc = BZ2_indexIntoF ( s->tPos, s->cftab ); \ 862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos = GET_LL(s->tPos); 863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- externs for decompression. --*/ 866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern Int32 868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_indexIntoF ( Int32, Int32* ); 869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern Int32 871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_decompress ( DState* ); 872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void 874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZ2_hbCreateDecodeTables ( Int32*, Int32*, Int32*, UChar*, 875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32, Int32, Int32 ); 876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- BZ_NO_STDIO seems to make NULL disappear on some platforms. --*/ 882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef BZ_NO_STDIO 884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef NULL 885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define NULL 0 886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end bzlib_private.h ---*/ 892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Something which has the same size as void* on the host. That is, 896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown it is 32 bits on a 32-bit host and 64 bits on a 64-bit host, and so 897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown it can safely be coerced to and from a pointer type on the host 898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown machine. */ 899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned long HWord; 900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef char HChar; 901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef signed int Int; 902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned int UInt; 903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef signed long long int Long; 905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef unsigned long long int ULong; 906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic HWord (*serviceFn)(HWord,HWord) = 0; 912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if 0 914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic char* my_strcpy ( char* dest, const char* src ) 915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* dest_orig = dest; 917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (*src) *dest++ = *src++; 918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *dest = 0; 919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return dest_orig; 920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic void* my_memcpy ( void *dest, const void *src, int sz ) 923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *s = (const char *)src; 925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char *d = (char *)dest; 926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (sz--) 928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return dest; 931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic void* my_memmove( void *dst, const void *src, unsigned int len ) 934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register char *d; 936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register char *s; 937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ( dst > src ) { 938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown d = (char *)dst + len - 1; 939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (char *)src + len - 1; 940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( len >= 4 ) { 941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d-- = *s--; 942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d-- = *s--; 943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d-- = *s--; 944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d-- = *s--; 945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown len -= 4; 946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( len-- ) { 948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d-- = *s--; 949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else if ( dst < src ) { 951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown d = (char *)dst; 952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (char *)src; 953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( len >= 4 ) { 954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown len -= 4; 959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( len-- ) { 961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *d++ = *s++; 962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return dst; 965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownchar* my_strcat ( char* dest, const char* src ) 969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* dest_orig = dest; 971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (*dest) dest++; 972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (*src) *dest++ = *src++; 973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *dest = 0; 974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return dest_orig; 975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic void vex_log_bytes ( char* p, int n ) 981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int i; 983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < n; i++) 984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)( 1, (int)p[i] ); 985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------------*/ 988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- vex_printf ---*/ 989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------------*/ 990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* This should be the only <...> include in the entire VEX library. 992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown New code for vex_util.c should go above this point. */ 993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdarg.h> 994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic HChar vex_toupper ( HChar c ) 996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c >= 'a' && c <= 'z') 998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return c + ('A' - 'a'); 999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 1000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return c; 1001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic Int vex_strlen ( const HChar* str ) 1004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int i = 0; 1006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (str[i] != 0) i++; 1007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return i; 1008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool vex_streq ( const HChar* s1, const HChar* s2 ) 1011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 1013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*s1 == 0 && *s2 == 0) 1014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 1015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*s1 != *s2) 1016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return False; 1017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1++; 1018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s2++; 1019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Some flags. */ 1023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VG_MSG_SIGNED 1 /* The value is signed. */ 1024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VG_MSG_ZJUSTIFY 2 /* Must justify with '0'. */ 1025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VG_MSG_LJUSTIFY 4 /* Must justify on the left. */ 1026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VG_MSG_PAREN 8 /* Parenthesize if present (for %y) */ 1027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define VG_MSG_COMMA 16 /* Add commas to numbers (for %d, %u) */ 1028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Copy a string into the buffer. */ 1030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic UInt 1031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmyvprintf_str ( void(*send)(HChar), Int flags, Int width, HChar* str, 1032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool capitalise ) 1033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define MAYBE_TOUPPER(ch) (capitalise ? vex_toupper(ch) : (ch)) 1035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt ret = 0; 1036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int i, extra; 1037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int len = vex_strlen(str); 1038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (width == 0) { 1040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += len; 1041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < len; i++) 1042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(MAYBE_TOUPPER(str[i])); 1043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (len > width) { 1047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += width; 1048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < width; i++) 1049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(MAYBE_TOUPPER(str[i])); 1050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown extra = width - len; 1054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (flags & VG_MSG_LJUSTIFY) { 1055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += extra; 1056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < extra; i++) 1057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(' '); 1058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += len; 1060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < len; i++) 1061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(MAYBE_TOUPPER(str[i])); 1062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!(flags & VG_MSG_LJUSTIFY)) { 1063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += extra; 1064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < extra; i++) 1065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(' '); 1066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# undef MAYBE_TOUPPER 1069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Write P into the buffer according to these args: 1074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * If SIGN is true, p is a signed. 1075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * BASE is the base. 1076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * If WITH_ZERO is true, '0' must be added. 1077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * WIDTH is the width of the field. 1078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 1079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic UInt 1080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmyvprintf_int64 ( void(*send)(HChar), Int flags, Int base, Int width, ULong pL) 1081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown HChar buf[40]; 1083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int ind = 0; 1084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int i, nc = 0; 1085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool neg = False; 1086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown HChar *digits = "0123456789ABCDEF"; 1087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt ret = 0; 1088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt p = (UInt)pL; 1089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (base < 2 || base > 16) 1091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ((flags & VG_MSG_SIGNED) && (Int)p < 0) { 1094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown p = - (Int)p; 1095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown neg = True; 1096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (p == 0) 1099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown buf[ind++] = '0'; 1100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else { 1101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (p > 0) { 1102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ((flags & VG_MSG_COMMA) && 10 == base && 1103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0 == (ind-nc) % 3 && 0 != ind) 1104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 1105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown buf[ind++] = ','; 1106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nc++; 1107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown buf[ind++] = digits[p % base]; 1109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown p /= base; 1110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (neg) 1114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown buf[ind++] = '-'; 1115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (width > 0 && !(flags & VG_MSG_LJUSTIFY)) { 1117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for(; ind < width; ind++) { 1118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown //vassert(ind < 39); 1119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown buf[ind] = ((flags & VG_MSG_ZJUSTIFY) ? '0': ' '); 1120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Reverse copy to buffer. */ 1124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += ind; 1125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = ind -1; i >= 0; i--) { 1126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(buf[i]); 1127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (width > 0 && (flags & VG_MSG_LJUSTIFY)) { 1129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for(; ind < width; ind++) { 1130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret++; 1131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(' '); // Never pad with zeroes on RHS -- changes the value! 1132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* A simple vprintf(). */ 1139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 1140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownUInt vprintf_wrk ( void(*send)(HChar), const HChar *format, va_list vargs ) 1141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt ret = 0; 1143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int i; 1144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int flags; 1145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int width; 1146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool is_long; 1147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* We assume that vargs has already been initialised by the 1149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown caller, using va_start, and that the caller will similarly 1150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown clean up with va_end. 1151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 1152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; format[i] != 0; i++) { 1154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] != '%') { 1155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send(format[i]); 1156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret++; 1157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 1158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* A '%' has been found. Ignore a trailing %. */ 1161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == 0) 1162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == '%') { 1164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* `%%' is replaced by `%'. */ 1165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send('%'); 1166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret++; 1167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 1168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags = 0; 1170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown is_long = False; 1171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown width = 0; /* length of the field. */ 1172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == '(') { 1173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags |= VG_MSG_PAREN; 1174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* If ',' follows '%', commas will be inserted. */ 1177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == ',') { 1178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags |= VG_MSG_COMMA; 1179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* If '-' follows '%', justify on the left. */ 1182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == '-') { 1183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags |= VG_MSG_LJUSTIFY; 1184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* If '0' follows '%', pads will be inserted. */ 1187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (format[i] == '0') { 1188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags |= VG_MSG_ZJUSTIFY; 1189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Compute the field length. */ 1192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (format[i] >= '0' && format[i] <= '9') { 1193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown width *= 10; 1194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown width += format[i++] - '0'; 1195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (format[i] == 'l') { 1197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 1198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown is_long = True; 1199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (format[i]) { 1202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'd': /* %d */ 1203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flags |= VG_MSG_SIGNED; 1204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (is_long) 1205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 10, width, 1206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, Long))); 1207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 1208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 10, width, 1209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, Int))); 1210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'u': /* %u */ 1212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (is_long) 1213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 10, width, 1214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, ULong))); 1215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 1216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 10, width, 1217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, UInt))); 1218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'p': /* %p */ 1220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += 2; 1221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send('0'); 1222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send('x'); 1223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 16, width, 1224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)((HWord)va_arg (vargs, void *))); 1225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'x': /* %x */ 1227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (is_long) 1228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 16, width, 1229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, ULong))); 1230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 1231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_int64(send, flags, 16, width, 1232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ULong)(va_arg (vargs, UInt))); 1233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'c': /* %c */ 1235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret++; 1236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown send((va_arg (vargs, int))); 1237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 's': case 'S': { /* %s */ 1239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char *str = va_arg (vargs, char *); 1240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (str == (char*) 0) str = "(null)"; 1241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_str(send, flags, width, str, 1242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (format[i]=='S')); 1243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# if 0 1246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'y': { /* %y - print symbol */ 1247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Char buf[100]; 1248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Char *cp = buf; 1249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Addr a = va_arg(vargs, Addr); 1250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (flags & VG_MSG_PAREN) 1252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *cp++ = '('; 1253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (VG_(get_fnname_w_offset)(a, cp, sizeof(buf)-4)) { 1254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (flags & VG_MSG_PAREN) { 1255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cp += VG_(strlen)(cp); 1256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *cp++ = ')'; 1257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *cp = '\0'; 1258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret += myvprintf_str(send, flags, width, buf, 0); 1260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# endif 1264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown default: 1265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 1266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* A general replacement for printf(). Note that only low-level 1273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown debugging info should be sent via here. The official route is to 1274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown to use vg_message(). This interface is deprecated. 1275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 1276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* XXX re 930: make the buffer just to small (by 1 byte) to be OK 1277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for this particular run. */ 1278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic HChar myprintf_buf[1000 -930]; 1279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic Int n_myprintf_buf; 1280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic void add_to_myprintf_buf ( HChar c ) 1282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c == '\n' || n_myprintf_buf >= 1000-10 /*paranoia*/ ) { 1284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*vex_log_bytes)( myprintf_buf, vex_strlen(myprintf_buf) ); 1285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n_myprintf_buf = 0; 1286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown myprintf_buf[n_myprintf_buf] = 0; 1287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown myprintf_buf[n_myprintf_buf++] = c; 1289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown myprintf_buf[n_myprintf_buf] = 0; 1290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic UInt vex_printf ( const char *format, ... ) 1293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt ret; 1295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown va_list vargs; 1296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown va_start(vargs,format); 1297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n_myprintf_buf = 0; 1299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown myprintf_buf[n_myprintf_buf] = 0; 1300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = vprintf_wrk ( add_to_myprintf_buf, format, vargs ); 1301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n_myprintf_buf > 0) { 1303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*vex_log_bytes)( myprintf_buf, n_myprintf_buf ); 1304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown va_end(vargs); 1307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 1309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------------------*/ 1312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end vex_util.c ---*/ 1313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------------------*/ 1314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 1317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 1318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 1319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 1320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 1323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Decompression machinery ---*/ 1324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- decompress.c ---*/ 1325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 1326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 1328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 1329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 1330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 1332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 1334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 1335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 1336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 1338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 1339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 1341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 1342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 1343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 1344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 1346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 1347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 1349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 1350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 1351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 1353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 1356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 1358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 1359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 1360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 1361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 1362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 1363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 1365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 1366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 1367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 1369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 1370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 1371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 1372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 1373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 1374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 1375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 1376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 1377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 1379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 1380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 1385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 1386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid makeMaps_d ( DState* s ) 1387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 1389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nInUse = 0; 1390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) 1391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->inUse[i]) { 1392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->seqToUnseq[s->nInUse] = i; 1393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nInUse++; 1394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 1399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define RETURN(rrr) \ 1400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { retVal = rrr; goto save_state_and_return; }; 1401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_BITS(lll,vvv,nnn) \ 1403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case lll: s->state = lll; \ 1404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { \ 1405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->bsLive >= nnn) { \ 1406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 v; \ 1407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown v = (s->bsBuff >> \ 1408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (s->bsLive-nnn)) & ((1 << nnn)-1); \ 1409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive -= nnn; \ 1410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vvv = v; \ 1411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; \ 1412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 1413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_in == 0) RETURN(BZ_OK); \ 1414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff \ 1415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = (s->bsBuff << 8) | \ 1416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UInt32) \ 1417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*((UChar*)(s->strm->next_in)))); \ 1418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive += 8; \ 1419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_in++; \ 1420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_in--; \ 1421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_in_lo32++; \ 1422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_in_lo32 == 0) \ 1423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_in_hi32++; \ 1424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_UCHAR(lll,uuu) \ 1427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(lll,uuu,8) 1428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_BIT(lll,uuu) \ 1430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(lll,uuu,1) 1431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 1433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define GET_MTF_VAL(label1,label2,lval) \ 1434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 1435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (groupPos == 0) { \ 1436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupNo++; \ 1437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (groupNo >= nSelectors) \ 1438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); \ 1439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupPos = BZ_G_SIZE; \ 1440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gSel = s->selector[groupNo]; \ 1441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gMinlen = s->minLens[gSel]; \ 1442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gLimit = &(s->limit[gSel][0]); \ 1443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gPerm = &(s->perm[gSel][0]); \ 1444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gBase = &(s->base[gSel][0]); \ 1445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 1446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupPos--; \ 1447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zn = gMinlen; \ 1448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(label1, zvec, zn); \ 1449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { \ 1450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zn > 20 /* the longest code */) \ 1451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); \ 1452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zvec <= gLimit[zn]) break; \ 1453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zn++; \ 1454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(label2, zj); \ 1455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zvec = (zvec << 1) | zj; \ 1456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; \ 1457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zvec - gBase[zn] < 0 \ 1458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown || zvec - gBase[zn] >= BZ_MAX_ALPHA_SIZE) \ 1459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); \ 1460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lval = gPerm[zvec - gBase[zn]]; \ 1461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 1466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__inline__ Int32 BZ2_indexIntoF ( Int32 indx, Int32 *cftab ) 1467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nb, na, mid; 1469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nb = 0; 1470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown na = 256; 1471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do { 1472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mid = (nb + na) >> 1; 1473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (indx >= cftab[mid]) nb = mid; else na = mid; 1474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (na - nb != 1); 1476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return nb; 1477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 1480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt32 BZ2_decompress ( DState* s ) 1481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 1482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar uc; 1483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 retVal; 1484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 minLen, maxLen; 1485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream* strm = s->strm; 1486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* stuff that needs to be saved/restored */ 1488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 1489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 j; 1490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 t; 1491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 alphaSize; 1492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nGroups; 1493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nSelectors; 1494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 EOB; 1495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 groupNo; 1496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 groupPos; 1497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nextSym; 1498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblockMAX; 1499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock; 1500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 es; 1501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 N; 1502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 curr; 1503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zt; 1504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zn; 1505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zvec; 1506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zj; 1507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 gSel; 1508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 gMinlen; 1509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* gLimit; 1510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* gBase; 1511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* gPerm; 1512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state == BZ_X_MAGIC_1) { 1514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*initialise the save area*/ 1515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_i = 0; 1516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_j = 0; 1517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_t = 0; 1518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_alphaSize = 0; 1519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nGroups = 0; 1520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nSelectors = 0; 1521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_EOB = 0; 1522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_groupNo = 0; 1523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_groupPos = 0; 1524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nextSym = 0; 1525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nblockMAX = 0; 1526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nblock = 0; 1527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_es = 0; 1528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_N = 0; 1529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_curr = 0; 1530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zt = 0; 1531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zn = 0; 1532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zvec = 0; 1533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zj = 0; 1534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gSel = 0; 1535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gMinlen = 0; 1536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gLimit = NULL; 1537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gBase = NULL; 1538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gPerm = NULL; 1539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*restore from the save area*/ 1542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = s->save_i; 1543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = s->save_j; 1544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown t = s->save_t; 1545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown alphaSize = s->save_alphaSize; 1546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nGroups = s->save_nGroups; 1547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nSelectors = s->save_nSelectors; 1548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EOB = s->save_EOB; 1549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupNo = s->save_groupNo; 1550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupPos = s->save_groupPos; 1551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nextSym = s->save_nextSym; 1552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblockMAX = s->save_nblockMAX; 1553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock = s->save_nblock; 1554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown es = s->save_es; 1555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown N = s->save_N; 1556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown curr = s->save_curr; 1557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zt = s->save_zt; 1558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zn = s->save_zn; 1559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zvec = s->save_zvec; 1560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zj = s->save_zj; 1561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gSel = s->save_gSel; 1562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gMinlen = s->save_gMinlen; 1563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gLimit = s->save_gLimit; 1564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gBase = s->save_gBase; 1565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gPerm = s->save_gPerm; 1566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown retVal = BZ_OK; 1568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (s->state) { 1570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_MAGIC_1, uc); 1572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != BZ_HDR_B) RETURN(BZ_DATA_ERROR_MAGIC); 1573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_MAGIC_2, uc); 1575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != BZ_HDR_Z) RETURN(BZ_DATA_ERROR_MAGIC); 1576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_MAGIC_3, uc) 1578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != BZ_HDR_h) RETURN(BZ_DATA_ERROR_MAGIC); 1579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(BZ_X_MAGIC_4, s->blockSize100k, 8) 1581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockSize100k < (BZ_HDR_0 + 1) || 1582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockSize100k > (BZ_HDR_0 + 9)) RETURN(BZ_DATA_ERROR_MAGIC); 1583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockSize100k -= BZ_HDR_0; 1584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->smallDecompress) { 1586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll16 = BZALLOC( s->blockSize100k * 100000 * sizeof(UInt16) ); 1587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll4 = BZALLOC( 1588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((1 + s->blockSize100k * 100000) >> 1) * sizeof(UChar) 1589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 1590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->ll16 == NULL || s->ll4 == NULL) RETURN(BZ_MEM_ERROR); 1591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt = BZALLOC( s->blockSize100k * 100000 * sizeof(Int32) ); 1593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->tt == NULL) RETURN(BZ_MEM_ERROR); 1594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_1, uc); 1597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 0x17) goto endhdr_2; 1599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x31) RETURN(BZ_DATA_ERROR); 1600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_2, uc); 1601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x41) RETURN(BZ_DATA_ERROR); 1602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_3, uc); 1603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x59) RETURN(BZ_DATA_ERROR); 1604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_4, uc); 1605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x26) RETURN(BZ_DATA_ERROR); 1606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_5, uc); 1607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x53) RETURN(BZ_DATA_ERROR); 1608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BLKHDR_6, uc); 1609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x59) RETURN(BZ_DATA_ERROR); 1610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->currBlockNo++; 1612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 2) 1613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1 ( "\n [%d: huff+mtf ", s->currBlockNo ); 1614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedBlockCRC = 0; 1616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BCRC_1, uc); 1617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); 1618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BCRC_2, uc); 1619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); 1620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BCRC_3, uc); 1621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); 1622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_BCRC_4, uc); 1623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedBlockCRC = (s->storedBlockCRC << 8) | ((UInt32)uc); 1624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(BZ_X_RANDBIT, s->blockRandomised, 1); 1626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->origPtr = 0; 1628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ORIGPTR_1, uc); 1629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->origPtr = (s->origPtr << 8) | ((Int32)uc); 1630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ORIGPTR_2, uc); 1631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->origPtr = (s->origPtr << 8) | ((Int32)uc); 1632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ORIGPTR_3, uc); 1633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->origPtr = (s->origPtr << 8) | ((Int32)uc); 1634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->origPtr < 0) 1636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); 1637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->origPtr > 10 + 100000*s->blockSize100k) 1638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); 1639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Receive the mapping table ---*/ 1641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 16; i++) { 1642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(BZ_X_MAPPING_1, uc); 1643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 1) 1644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->inUse16[i] = True; else 1645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->inUse16[i] = False; 1646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) s->inUse[i] = False; 1649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 16; i++) 1651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->inUse16[i]) 1652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < 16; j++) { 1653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(BZ_X_MAPPING_2, uc); 1654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 1) s->inUse[i * 16 + j] = True; 1655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown makeMaps_d ( s ); 1657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nInUse == 0) RETURN(BZ_DATA_ERROR); 1658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown alphaSize = s->nInUse+2; 1659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Now the selectors ---*/ 1661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(BZ_X_SELECTOR_1, nGroups, 3); 1662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nGroups < 2 || nGroups > 6) RETURN(BZ_DATA_ERROR); 1663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(BZ_X_SELECTOR_2, nSelectors, 15); 1664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nSelectors < 1) RETURN(BZ_DATA_ERROR); 1665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nSelectors; i++) { 1666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 1667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 1668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(BZ_X_SELECTOR_3, uc); 1669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 0) break; 1670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j++; 1671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j >= nGroups) RETURN(BZ_DATA_ERROR); 1672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->selectorMtf[i] = j; 1674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Undo the MTF values for the selectors. ---*/ 1677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 1678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar pos[BZ_N_GROUPS], tmp, v; 1679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (v = 0; v < nGroups; v++) pos[v] = v; 1680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nSelectors; i++) { 1682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown v = s->selectorMtf[i]; 1683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp = pos[v]; 1684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (v > 0) { pos[v] = pos[v-1]; v--; } 1685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pos[0] = tmp; 1686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->selector[i] = tmp; 1687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Now the coding tables ---*/ 1691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) { 1692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BITS(BZ_X_CODING_1, curr, 5); 1693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) { 1694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 1695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (curr < 1 || curr > 20) RETURN(BZ_DATA_ERROR); 1696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(BZ_X_CODING_2, uc); 1697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 0) break; 1698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_BIT(BZ_X_CODING_3, uc); 1699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc == 0) curr++; else curr--; 1700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len[t][i] = curr; 1702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Create the Huffman decoding tables ---*/ 1706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) { 1707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown minLen = 32; 1708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown maxLen = 0; 1709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) { 1710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->len[t][i] > maxLen) maxLen = s->len[t][i]; 1711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->len[t][i] < minLen) minLen = s->len[t][i]; 1712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_hbCreateDecodeTables ( 1714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown &(s->limit[t][0]), 1715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown &(s->base[t][0]), 1716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown &(s->perm[t][0]), 1717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown &(s->len[t][0]), 1718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown minLen, maxLen, alphaSize 1719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 1720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->minLens[t] = minLen; 1721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Now the MTF values ---*/ 1724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EOB = s->nInUse+1; 1726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblockMAX = 100000 * s->blockSize100k; 1727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupNo = -1; 1728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown groupPos = 0; 1729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= 255; i++) s->unzftab[i] = 0; 1731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- MTF init --*/ 1733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 1734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 ii, jj, kk; 1735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown kk = MTFA_SIZE-1; 1736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (ii = 256 / MTFL_SIZE - 1; ii >= 0; ii--) { 1737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (jj = MTFL_SIZE-1; jj >= 0; jj--) { 1738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[kk] = (UChar)(ii * MTFL_SIZE + jj); 1739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown kk--; 1740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfbase[ii] = kk + 1; 1742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- end MTF init --*/ 1745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock = 0; 1747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_MTF_VAL(BZ_X_MTF_1, BZ_X_MTF_2, nextSym); 1748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 1750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nextSym == EOB) break; 1752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nextSym == BZ_RUNA || nextSym == BZ_RUNB) { 1754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown es = -1; 1756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown N = 1; 1757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do { 1758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nextSym == BZ_RUNA) es = es + (0+1) * N; else 1759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nextSym == BZ_RUNB) es = es + (1+1) * N; 1760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown N = N * 2; 1761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_MTF_VAL(BZ_X_MTF_3, BZ_X_MTF_4, nextSym); 1762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nextSym == BZ_RUNA || nextSym == BZ_RUNB); 1764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown es++; 1766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown uc = s->seqToUnseq[ s->mtfa[s->mtfbase[0]] ]; 1767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->unzftab[uc] += es; 1768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->smallDecompress) 1770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (es > 0) { 1771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); 1772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll16[nblock] = (UInt16)uc; 1773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock++; 1774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown es--; 1775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 1777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (es > 0) { 1778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); 1779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt[nblock] = (UInt32)uc; 1780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock++; 1781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown es--; 1782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 1783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 1785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nblock >= nblockMAX) RETURN(BZ_DATA_ERROR); 1789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- uc = MTF ( nextSym-1 ) --*/ 1791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 1792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 ii, jj, kk, pp, lno, off; 1793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 nn; 1794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nn = (UInt32)(nextSym - 1); 1795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nn < MTFL_SIZE) { 1797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* avoid general-case expense */ 1798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pp = s->mtfbase[0]; 1799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown uc = s->mtfa[pp+nn]; 1800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nn > 3) { 1801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 z = pp+nn; 1802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[(z) ] = s->mtfa[(z)-1]; 1803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[(z)-1] = s->mtfa[(z)-2]; 1804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[(z)-2] = s->mtfa[(z)-3]; 1805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[(z)-3] = s->mtfa[(z)-4]; 1806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nn -= 4; 1807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nn > 0) { 1809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[(pp+nn)] = s->mtfa[(pp+nn)-1]; nn--; 1810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 1811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[pp] = uc; 1812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* general case */ 1814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lno = nn / MTFL_SIZE; 1815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown off = nn % MTFL_SIZE; 1816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pp = s->mtfbase[lno] + off; 1817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown uc = s->mtfa[pp]; 1818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (pp > s->mtfbase[lno]) { 1819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[pp] = s->mtfa[pp-1]; pp--; 1820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 1821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfbase[lno]++; 1822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (lno > 0) { 1823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfbase[lno]--; 1824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[s->mtfbase[lno]] 1825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = s->mtfa[s->mtfbase[lno-1] + MTFL_SIZE - 1]; 1826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lno--; 1827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfbase[0]--; 1829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[s->mtfbase[0]] = uc; 1830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->mtfbase[0] == 0) { 1831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown kk = MTFA_SIZE-1; 1832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (ii = 256 / MTFL_SIZE-1; ii >= 0; ii--) { 1833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (jj = MTFL_SIZE-1; jj >= 0; jj--) { 1834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfa[kk] = s->mtfa[s->mtfbase[ii] + jj]; 1835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown kk--; 1836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfbase[ii] = kk + 1; 1838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- end uc = MTF ( nextSym-1 ) --*/ 1843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->unzftab[s->seqToUnseq[uc]]++; 1845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->smallDecompress) 1846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll16[nblock] = (UInt16)(s->seqToUnseq[uc]); else 1847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt[nblock] = (UInt32)(s->seqToUnseq[uc]); 1848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock++; 1849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_MTF_VAL(BZ_X_MTF_5, BZ_X_MTF_6, nextSym); 1851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 1852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Now we know what nblock is, we can do a better sanity 1856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown check on s->origPtr. 1857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 1858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->origPtr < 0 || s->origPtr >= nblock) 1859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); 1860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Set up cftab to facilitate generation of T^(-1) --*/ 1862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->cftab[0] = 0; 1863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= 256; i++) s->cftab[i] = s->unzftab[i-1]; 1864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= 256; i++) s->cftab[i] += s->cftab[i-1]; 1865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= 256; i++) { 1866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->cftab[i] < 0 || s->cftab[i] > nblock) { 1867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* s->cftab[i] can legitimately be == nblock */ 1868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_DATA_ERROR); 1869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 0; 1873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_ch = 0; 1874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_INITIALISE_CRC ( s->calculatedBlockCRC ); 1875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_X_OUTPUT; 1876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 2) VPrintf0 ( "rt+rld" ); 1877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->smallDecompress) { 1879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Make a copy of cftab, used in generation of T --*/ 1881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= 256; i++) s->cftabCopy[i] = s->cftab[i]; 1882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- compute the T vector --*/ 1884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) { 1885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown uc = (UChar)(s->ll16[i]); 1886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SET_LL(i, s->cftabCopy[uc]); 1887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->cftabCopy[uc]++; 1888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Compute T^(-1) by pointer reversal on T --*/ 1891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = s->origPtr; 1892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = GET_LL(i); 1893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do { 1894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 tmp = GET_LL(j); 1895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SET_LL(j, i); 1896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = j; 1897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = tmp; 1898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (i != s->origPtr); 1900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos = s->origPtr; 1902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock_used = 0; 1903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockRandomised) { 1904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_INIT_MASK; 1905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(s->k0); s->nblock_used++; 1906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; 1907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(s->k0); s->nblock_used++; 1909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- compute the T^(-1) vector --*/ 1914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) { 1915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown uc = (UChar)(s->tt[i] & 0xff); 1916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt[s->cftab[uc]] |= (i << 8); 1917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->cftab[uc]++; 1918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos = s->tt[s->origPtr] >> 8; 1921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock_used = 0; 1922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockRandomised) { 1923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_INIT_MASK; 1924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(s->k0); s->nblock_used++; 1925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_RAND_UPD_MASK; s->k0 ^= BZ_RAND_MASK; 1926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 1927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(s->k0); s->nblock_used++; 1928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_OK); 1933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown endhdr_2: 1937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ENDHDR_2, uc); 1939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x72) RETURN(BZ_DATA_ERROR); 1940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ENDHDR_3, uc); 1941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x45) RETURN(BZ_DATA_ERROR); 1942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ENDHDR_4, uc); 1943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x38) RETURN(BZ_DATA_ERROR); 1944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ENDHDR_5, uc); 1945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x50) RETURN(BZ_DATA_ERROR); 1946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_ENDHDR_6, uc); 1947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (uc != 0x90) RETURN(BZ_DATA_ERROR); 1948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC = 0; 1950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_CCRC_1, uc); 1951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); 1952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_CCRC_2, uc); 1953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); 1954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_CCRC_3, uc); 1955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); 1956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GET_UCHAR(BZ_X_CCRC_4, uc); 1957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC = (s->storedCombinedCRC << 8) | ((UInt32)uc); 1958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_X_IDLE; 1960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown RETURN(BZ_STREAM_END); 1961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown default: AssertH ( False, 4001 ); 1963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 1964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( False, 4002 ); 1966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown save_state_and_return: 1968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_i = i; 1970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_j = j; 1971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_t = t; 1972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_alphaSize = alphaSize; 1973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nGroups = nGroups; 1974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nSelectors = nSelectors; 1975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_EOB = EOB; 1976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_groupNo = groupNo; 1977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_groupPos = groupPos; 1978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nextSym = nextSym; 1979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nblockMAX = nblockMAX; 1980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_nblock = nblock; 1981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_es = es; 1982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_N = N; 1983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_curr = curr; 1984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zt = zt; 1985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zn = zn; 1986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zvec = zvec; 1987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_zj = zj; 1988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gSel = gSel; 1989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gMinlen = gMinlen; 1990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gLimit = gLimit; 1991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gBase = gBase; 1992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->save_gPerm = gPerm; 1993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return retVal; 1995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 1996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 1999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end decompress.c ---*/ 2000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 2001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 2003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Block sorting machinery ---*/ 2004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- blocksort.c ---*/ 2005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 2006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 2008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 2009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 2010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 2012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 2014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 2015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 2016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 2018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 2019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 2021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 2022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 2023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 2024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 2026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 2027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 2029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 2030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 2031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 2033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 2036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 2038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 2040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 2042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 2045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 2046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 2047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 2049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 2050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 2051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 2052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 2053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 2054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 2055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 2056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 2057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 2059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown To get some idea how the block sorting algorithms in this file 2061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown work, read my paper 2062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown On the Performance of BWT Sorting Algorithms 2063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown in Proceedings of the IEEE Data Compression Conference 2000, 2064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Snowbird, Utah, USA, 27-30 March 2000. The main sort in this 2065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown file implements the algorithm called cache in the paper. 2066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 2067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Fallback O(N log(N)^2) sorting ---*/ 2072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- algorithm, for repetitive blocks ---*/ 2073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__inline__ 2078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid fallbackSimpleSort ( UInt32* fmap, 2079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* eclass, 2080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 lo, 2081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 hi ) 2082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i, j, tmp; 2084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 ec_tmp; 2085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (lo == hi) return; 2087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (hi - lo > 3) { 2089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for ( i = hi-4; i >= lo; i-- ) { 2090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp = fmap[i]; 2091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ec_tmp = eclass[tmp]; 2092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for ( j = i+4; j <= hi && ec_tmp > eclass[fmap[j]]; j += 4 ) 2093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap[j-4] = fmap[j]; 2094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap[j-4] = tmp; 2095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for ( i = hi-1; i >= lo; i-- ) { 2099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp = fmap[i]; 2100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ec_tmp = eclass[tmp]; 2101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for ( j = i+1; j <= hi && ec_tmp > eclass[fmap[j]]; j++ ) 2102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap[j-1] = fmap[j]; 2103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap[j-1] = tmp; 2104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define fswap(zz1, zz2) \ 2110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; } 2111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define fvswap(zzp1, zzp2, zzn) \ 2113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 2114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyp1 = (zzp1); \ 2115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyp2 = (zzp2); \ 2116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyn = (zzn); \ 2117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (yyn > 0) { \ 2118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fswap(fmap[yyp1], fmap[yyp2]); \ 2119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yyp1++; yyp2++; yyn--; \ 2120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 2121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define fmin(a,b) ((a) < (b)) ? (a) : (b) 2125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define fpush(lz,hz) { stackLo[sp] = lz; \ 2127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown stackHi[sp] = hz; \ 2128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sp++; } 2129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define fpop(lz,hz) { sp--; \ 2131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lz = stackLo[sp]; \ 2132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hz = stackHi[sp]; } 2133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define FALLBACK_QSORT_SMALL_THRESH 10 2135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define FALLBACK_QSORT_STACK_SIZE 100 2136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid fallbackQSort3 ( UInt32* fmap, 2140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* eclass, 2141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 loSt, 2142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 hiSt ) 2143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 unLo, unHi, ltLo, gtHi, n, m; 2145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 sp, lo, hi; 2146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 med, r, r3; 2147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 stackLo[FALLBACK_QSORT_STACK_SIZE]; 2148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 stackHi[FALLBACK_QSORT_STACK_SIZE]; 2149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = 0; 2151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sp = 0; 2153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpush ( loSt, hiSt ); 2154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (sp > 0) { 2156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( sp < FALLBACK_QSORT_STACK_SIZE, 1004 ); 2158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpop ( lo, hi ); 2160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (hi - lo < FALLBACK_QSORT_SMALL_THRESH) { 2161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fallbackSimpleSort ( fmap, eclass, lo, hi ); 2162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 2163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Random partitioning. Median of 3 sometimes fails to 2166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown avoid bad cases. Median of 9 seems to help but 2167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown looks rather expensive. This too seems to work but 2168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown is cheaper. Guidance for the magic constants 2169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 7621 and 32768 is taken from Sedgewick's algorithms 2170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown book, chapter 35. 2171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 2172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = ((r * 7621) + 1) % 32768; 2173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r3 = r % 3; 2174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r3 == 0) med = eclass[fmap[lo]]; else 2175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r3 == 1) med = eclass[fmap[(lo+hi)>>1]]; else 2176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown med = eclass[fmap[hi]]; 2177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unLo = ltLo = lo; 2179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unHi = gtHi = hi; 2180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { 2182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { 2183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = (Int32)eclass[fmap[unLo]] - (Int32)med; 2185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n == 0) { 2186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fswap(fmap[unLo], fmap[ltLo]); 2187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ltLo++; unLo++; 2188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 2189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 2190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n > 0) break; 2191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unLo++; 2192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { 2194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = (Int32)eclass[fmap[unHi]] - (Int32)med; 2196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n == 0) { 2197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fswap(fmap[unHi], fmap[gtHi]); 2198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gtHi--; unHi--; 2199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 2200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 2201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n < 0) break; 2202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unHi--; 2203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fswap(fmap[unLo], fmap[unHi]); unLo++; unHi--; 2206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD ( unHi == unLo-1, "fallbackQSort3(2)" ); 2209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (gtHi < ltLo) continue; 2211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = fmin(ltLo-lo, unLo-ltLo); fvswap(lo, unLo-n, n); 2213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown m = fmin(hi-gtHi, gtHi-unHi); fvswap(unLo, hi-m+1, m); 2214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = lo + unLo - ltLo - 1; 2216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown m = hi - (gtHi - unHi) + 1; 2217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n - lo > hi - m) { 2219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpush ( lo, n ); 2220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpush ( m, hi ); 2221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 2222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpush ( m, hi ); 2223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fpush ( lo, n ); 2224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef fmin 2229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef fpush 2230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef fpop 2231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef fswap 2232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef fvswap 2233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef FALLBACK_QSORT_SMALL_THRESH 2234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef FALLBACK_QSORT_STACK_SIZE 2235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Pre: 2239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock > 0 2240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown eclass exists for [0 .. nblock-1] 2241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)eclass) [0 .. nblock-1] holds block 2242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr exists for [0 .. nblock-1] 2243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Post: 2245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)eclass) [0 .. nblock-1] holds block 2246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown All other areas of eclass destroyed 2247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap [0 .. nblock-1] holds sorted order 2248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bhtab [ 0 .. 2+(nblock/32) ] destroyed 2249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 2250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SET_BH(zz) bhtab[(zz) >> 5] |= (1 << ((zz) & 31)) 2252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define CLEAR_BH(zz) bhtab[(zz) >> 5] &= ~(1 << ((zz) & 31)) 2253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISSET_BH(zz) (bhtab[(zz) >> 5] & (1 << ((zz) & 31))) 2254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define WORD_BH(zz) bhtab[(zz) >> 5] 2255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define UNALIGNED_BH(zz) ((zz) & 0x01f) 2256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid fallbackSort ( UInt32* fmap, 2259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* eclass, 2260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* bhtab, 2261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock, 2262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 verb ) 2263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 ftab[257]; 2265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 ftabCopy[256]; 2266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 H, i, j, k, l, r, cc, cc1; 2267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nNotDone; 2268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nBhtab; 2269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* eclass8 = (UChar*)eclass; 2270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Initial 1-char radix sort to generate 2273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown initial fmap and initial BH bits. 2274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 2276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf0 ( " bucket sorting ...\n" ); 2277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 257; i++) ftab[i] = 0; 2278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) ftab[eclass8[i]]++; 2279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) ftabCopy[i] = ftab[i]; 2280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i < 257; i++) ftab[i] += ftab[i-1]; 2281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) { 2283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = eclass8[i]; 2284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = ftab[j] - 1; 2285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j] = k; 2286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fmap[k] = i; 2287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nBhtab = 2 + (nblock / 32); 2290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nBhtab; i++) bhtab[i] = 0; 2291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) SET_BH(ftab[i]); 2292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Inductively refine the buckets. Kind-of an 2295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "exponential radix sort" (!), inspired by the 2296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Manber-Myers suffix array construction algorithm. 2297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- set sentinel bits for block-end detection --*/ 2300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 32; i++) { 2301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SET_BH(nblock + 2*i); 2302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown CLEAR_BH(nblock + 2*i + 1); 2303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- the log(N) loop --*/ 2306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown H = 1; 2307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { 2308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 2310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1 ( " depth %6d has ", H ); 2311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 2313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) { 2314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ISSET_BH(i)) j = i; 2315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = fmap[i] - H; if (k < 0) k += nblock; 2316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown eclass[k] = j; 2317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nNotDone = 0; 2320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = -1; 2321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (1) { 2322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- find the next non-singleton bucket --*/ 2324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = r + 1; 2325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (ISSET_BH(k) && UNALIGNED_BH(k)) k++; 2326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ISSET_BH(k)) { 2327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (WORD_BH(k) == 0xffffffff) k += 32; 2328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (ISSET_BH(k)) k++; 2329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown l = k - 1; 2331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (l >= nblock) break; 2332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (!ISSET_BH(k) && UNALIGNED_BH(k)) k++; 2333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!ISSET_BH(k)) { 2334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (WORD_BH(k) == 0x00000000) k += 32; 2335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (!ISSET_BH(k)) k++; 2336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = k - 1; 2338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r >= nblock) break; 2339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- now [l, r] bracket current bucket --*/ 2341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r > l) { 2342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nNotDone += (r - l + 1); 2343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fallbackQSort3 ( fmap, eclass, l, r ); 2344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- scan bucket and generate header bits-- */ 2346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cc = -1; 2347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = l; i <= r; i++) { 2348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cc1 = eclass[fmap[i]]; 2349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (cc != cc1) { SET_BH(i); cc = cc1; }; 2350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 2355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1 ( "%6d unresolved strings\n", nNotDone ); 2356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown H *= 2; 2358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (H > nblock || nNotDone == 0) break; 2359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Reconstruct the original block in 2363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown eclass8 [0 .. nblock-1], since the 2364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown previous phase destroyed it. 2365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 2367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf0 ( " reconstructing block ...\n" ); 2368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 2369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nblock; i++) { 2370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (ftabCopy[j] == 0) j++; 2371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftabCopy[j]--; 2372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown eclass8[fmap[i]] = (UChar)j; 2373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( j < 256, 1005 ); 2375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef SET_BH 2378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef CLEAR_BH 2379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef ISSET_BH 2380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef WORD_BH 2381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef UNALIGNED_BH 2382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- The main, O(N^2 log(N)) sorting ---*/ 2386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- algorithm. Faster for "normal" ---*/ 2387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- non-repetitive blocks. ---*/ 2388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__inline__ 2393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool mainGtU ( UInt32 i1, 2394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 i2, 2395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block, 2396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* quadrant, 2397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 nblock, 2398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* budget ) 2399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 k; 2401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar c1, c2; 2402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 s1, s2; 2403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD ( i1 != i2, "mainGtU" ); 2405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 1 */ 2406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 2 */ 2410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 3 */ 2414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 4 */ 2418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 5 */ 2422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 6 */ 2426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 7 */ 2430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 8 */ 2434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 9 */ 2438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 10 */ 2442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 11 */ 2446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 12 */ 2450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = nblock + 8; 2455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do { 2457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 1 */ 2458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 2 */ 2464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 3 */ 2470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 4 */ 2476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 5 */ 2482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 6 */ 2488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 7 */ 2494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 8 */ 2500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[i1]; c2 = block[i2]; 2501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c1 != c2) return (c1 > c2); 2502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s1 = quadrant[i1]; s2 = quadrant[i2]; 2503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s1 != s2) return (s1 > s2); 2504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i1++; i2++; 2505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i1 >= nblock) i1 -= nblock; 2507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i2 >= nblock) i2 -= nblock; 2508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k -= 8; 2510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*budget)--; 2511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (k >= 0); 2513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return False; 2515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 2520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Knuth's increments seem to work better 2521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown than Incerpi-Sedgewick here. Possibly 2522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown because the number of elems to sort is 2523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown usually small, typically <= 20. 2524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 2525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt32 incs[14] = { 1, 4, 13, 40, 121, 364, 1093, 3280, 2527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 9841, 29524, 88573, 265720, 2528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 797161, 2391484 }; 2529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid mainSimpleSort ( UInt32* ptr, 2532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block, 2533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* quadrant, 2534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock, 2535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 lo, 2536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 hi, 2537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 d, 2538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* budget ) 2539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i, j, h, bigN, hp; 2541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 v; 2542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bigN = hi - lo + 1; 2544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bigN < 2) return; 2545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hp = 0; 2547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (incs[hp] < bigN) hp++; 2548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hp--; 2549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (; hp >= 0; hp--) { 2551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown h = incs[hp]; 2552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = lo + h; 2554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 2555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- copy 1 --*/ 2557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i > hi) break; 2558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown v = ptr[i]; 2559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = i; 2560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( mainGtU ( 2561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j-h]+d, v+d, block, quadrant, nblock, budget 2562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ) ) { 2563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = ptr[j-h]; 2564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = j - h; 2565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j <= (lo + h - 1)) break; 2566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = v; 2568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 2569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- copy 2 --*/ 2571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i > hi) break; 2572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown v = ptr[i]; 2573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = i; 2574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( mainGtU ( 2575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j-h]+d, v+d, block, quadrant, nblock, budget 2576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ) ) { 2577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = ptr[j-h]; 2578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = j - h; 2579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j <= (lo + h - 1)) break; 2580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = v; 2582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 2583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- copy 3 --*/ 2585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i > hi) break; 2586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown v = ptr[i]; 2587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = i; 2588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( mainGtU ( 2589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j-h]+d, v+d, block, quadrant, nblock, budget 2590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ) ) { 2591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = ptr[j-h]; 2592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = j - h; 2593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j <= (lo + h - 1)) break; 2594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = v; 2596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i++; 2597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*budget < 0) return; 2599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 2606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The following is an implementation of 2607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown an elegant 3-way quicksort for strings, 2608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown described in a paper "Fast Algorithms for 2609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Sorting and Searching Strings", by Robert 2610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Sedgewick and Jon L. Bentley. 2611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 2612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mswap(zz1, zz2) \ 2614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { Int32 zztmp = zz1; zz1 = zz2; zz2 = zztmp; } 2615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mvswap(zzp1, zzp2, zzn) \ 2617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 2618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyp1 = (zzp1); \ 2619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyp2 = (zzp2); \ 2620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 yyn = (zzn); \ 2621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (yyn > 0) { \ 2622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mswap(ptr[yyp1], ptr[yyp2]); \ 2623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yyp1++; yyp2++; yyn--; \ 2624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 2625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__inline__ 2629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownUChar mmed3 ( UChar a, UChar b, UChar c ) 2630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar t; 2632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (a > b) { t = a; a = b; b = t; }; 2633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (b > c) { 2634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown b = c; 2635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (a > b) b = a; 2636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return b; 2638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mmin(a,b) ((a) < (b)) ? (a) : (b) 2641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mpush(lz,hz,dz) { stackLo[sp] = lz; \ 2643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown stackHi[sp] = hz; \ 2644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown stackD [sp] = dz; \ 2645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sp++; } 2646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mpop(lz,hz,dz) { sp--; \ 2648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lz = stackLo[sp]; \ 2649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hz = stackHi[sp]; \ 2650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown dz = stackD [sp]; } 2651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mnextsize(az) (nextHi[az]-nextLo[az]) 2654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define mnextswap(az,bz) \ 2656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { Int32 tz; \ 2657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tz = nextLo[az]; nextLo[az] = nextLo[bz]; nextLo[bz] = tz; \ 2658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tz = nextHi[az]; nextHi[az] = nextHi[bz]; nextHi[bz] = tz; \ 2659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tz = nextD [az]; nextD [az] = nextD [bz]; nextD [bz] = tz; } 2660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MAIN_QSORT_SMALL_THRESH 20 2663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MAIN_QSORT_DEPTH_THRESH (BZ_N_RADIX + BZ_N_QSORT) 2664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MAIN_QSORT_STACK_SIZE 100 2665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid mainQSort3 ( UInt32* ptr, 2668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block, 2669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* quadrant, 2670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock, 2671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 loSt, 2672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 hiSt, 2673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 dSt, 2674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* budget ) 2675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 unLo, unHi, ltLo, gtHi, n, m, med; 2677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 sp, lo, hi, d; 2678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 stackLo[MAIN_QSORT_STACK_SIZE]; 2680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 stackHi[MAIN_QSORT_STACK_SIZE]; 2681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 stackD [MAIN_QSORT_STACK_SIZE]; 2682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nextLo[3]; 2684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nextHi[3]; 2685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nextD [3]; 2686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sp = 0; 2688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpush ( loSt, hiSt, dSt ); 2689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (sp > 0) { 2691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( sp < MAIN_QSORT_STACK_SIZE, 1001 ); 2693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpop ( lo, hi, d ); 2695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (hi - lo < MAIN_QSORT_SMALL_THRESH || 2696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown d > MAIN_QSORT_DEPTH_THRESH) { 2697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mainSimpleSort ( ptr, block, quadrant, nblock, lo, hi, d, budget ); 2698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*budget < 0) return; 2699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 2700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown med = (Int32) 2703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mmed3 ( block[ptr[ lo ]+d], 2704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown block[ptr[ hi ]+d], 2705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown block[ptr[ (lo+hi)>>1 ]+d] ); 2706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unLo = ltLo = lo; 2708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unHi = gtHi = hi; 2709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 2711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 2712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = ((Int32)block[ptr[unLo]+d]) - med; 2714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n == 0) { 2715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mswap(ptr[unLo], ptr[ltLo]); 2716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ltLo++; unLo++; continue; 2717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 2718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n > 0) break; 2719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unLo++; 2720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 2722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = ((Int32)block[ptr[unHi]+d]) - med; 2724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n == 0) { 2725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mswap(ptr[unHi], ptr[gtHi]); 2726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gtHi--; unHi--; continue; 2727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 2728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n < 0) break; 2729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unHi--; 2730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unLo > unHi) break; 2732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mswap(ptr[unLo], ptr[unHi]); unLo++; unHi--; 2733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD ( unHi == unLo-1, "mainQSort3(2)" ); 2736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (gtHi < ltLo) { 2738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpush(lo, hi, d+1 ); 2739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown continue; 2740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = mmin(ltLo-lo, unLo-ltLo); mvswap(lo, unLo-n, n); 2743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown m = mmin(hi-gtHi, gtHi-unHi); mvswap(unLo, hi-m+1, m); 2744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = lo + unLo - ltLo - 1; 2746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown m = hi - (gtHi - unHi) + 1; 2747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nextLo[0] = lo; nextHi[0] = n; nextD[0] = d; 2749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nextLo[1] = m; nextHi[1] = hi; nextD[1] = d; 2750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nextLo[2] = n+1; nextHi[2] = m-1; nextD[2] = d+1; 2751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (mnextsize(0) < mnextsize(1)) mnextswap(0,1); 2753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (mnextsize(1) < mnextsize(2)) mnextswap(1,2); 2754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (mnextsize(0) < mnextsize(1)) mnextswap(0,1); 2755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD (mnextsize(0) >= mnextsize(1), "mainQSort3(8)" ); 2757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD (mnextsize(1) >= mnextsize(2), "mainQSort3(9)" ); 2758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpush (nextLo[0], nextHi[0], nextD[0]); 2760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpush (nextLo[1], nextHi[1], nextD[1]); 2761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mpush (nextLo[2], nextHi[2], nextD[2]); 2762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 2764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mswap 2766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mvswap 2767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mpush 2768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mpop 2769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mmin 2770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mnextsize 2771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef mnextswap 2772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef MAIN_QSORT_SMALL_THRESH 2773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef MAIN_QSORT_DEPTH_THRESH 2774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef MAIN_QSORT_STACK_SIZE 2775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 2778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Pre: 2779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock > N_OVERSHOOT 2780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown block32 exists for [0 .. nblock-1 +N_OVERSHOOT] 2781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)block32) [0 .. nblock-1] holds block 2782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr exists for [0 .. nblock-1] 2783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Post: 2785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)block32) [0 .. nblock-1] holds block 2786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown All other areas of block32 destroyed 2787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab [0 .. 65536 ] destroyed 2788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr [0 .. nblock-1] holds sorted order 2789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*budget < 0), sorting was abandoned 2790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 2791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BIGFREQ(b) (ftab[((b)+1) << 8] - ftab[(b) << 8]) 2793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SETMASK (1 << 21) 2794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define CLEARMASK (~(SETMASK)) 2795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 2797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid mainSort ( UInt32* ptr, 2798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block, 2799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* quadrant, 2800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ftab, 2801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock, 2802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 verb, 2803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* budget ) 2804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 2805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i, j, k, ss, sb; 2806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 runningOrder[256]; 2807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool bigDone[256]; 2808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 copyStart[256]; 2809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 copyEnd [256]; 2810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar c1; 2811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 numQSorted; 2812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 s; 2813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) VPrintf0 ( " main sort initialise ...\n" ); 2814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- set up the 2-byte frequency table --*/ 2816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 65536; i >= 0; i--) ftab[i] = 0; 2817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = block[0] << 8; 2819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = nblock-1; 2820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (; i >= 3; i -= 4) { 2821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[i] = 0; 2822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 8) | ( ((UInt16)block[i]) << 8); 2823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j]++; 2824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[i-1] = 0; 2825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 8) | ( ((UInt16)block[i-1]) << 8); 2826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j]++; 2827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[i-2] = 0; 2828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 8) | ( ((UInt16)block[i-2]) << 8); 2829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j]++; 2830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[i-3] = 0; 2831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 8) | ( ((UInt16)block[i-3]) << 8); 2832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j]++; 2833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (; i >= 0; i--) { 2835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[i] = 0; 2836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 8) | ( ((UInt16)block[i]) << 8); 2837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[j]++; 2838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- (emphasises close relationship of block & quadrant) --*/ 2841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < BZ_N_OVERSHOOT; i++) { 2842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown block [nblock+i] = block[i]; 2843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[nblock+i] = 0; 2844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) VPrintf0 ( " bucket sorting ...\n" ); 2847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Complete the initial radix sort --*/ 2849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= 65536; i++) ftab[i] += ftab[i-1]; 2850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = block[0] << 8; 2852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = nblock-1; 2853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (; i >= 3; i -= 4) { 2854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (s >> 8) | (block[i] << 8); 2855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ftab[s] -1; 2856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[s] = j; 2857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = i; 2858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (s >> 8) | (block[i-1] << 8); 2859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ftab[s] -1; 2860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[s] = j; 2861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = i-1; 2862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (s >> 8) | (block[i-2] << 8); 2863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ftab[s] -1; 2864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[s] = j; 2865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = i-2; 2866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (s >> 8) | (block[i-3] << 8); 2867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ftab[s] -1; 2868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[s] = j; 2869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = i-3; 2870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (; i >= 0; i--) { 2872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = (s >> 8) | (block[i] << 8); 2873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ftab[s] -1; 2874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[s] = j; 2875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[j] = i; 2876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Now ftab contains the first loc of every small bucket. 2880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Calculate the running order, from smallest to largest 2881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown big bucket. 2882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= 255; i++) { 2884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bigDone [i] = False; 2885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown runningOrder[i] = i; 2886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 2889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 vv; 2890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 h = 1; 2891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do h = 3 * h + 1; while (h <= 256); 2892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do { 2893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown h = h / 3; 2894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = h; i <= 255; i++) { 2895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vv = runningOrder[i]; 2896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = i; 2897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( BIGFREQ(runningOrder[j-h]) > BIGFREQ(vv) ) { 2898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown runningOrder[j] = runningOrder[j-h]; 2899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = j - h; 2900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j <= (h - 1)) goto zero; 2901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zero: 2903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown runningOrder[j] = vv; 2904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } while (h != 1); 2906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The main sorting loop. 2910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown numQSorted = 0; 2913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= 255; i++) { 2915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Process big buckets, starting with the least full. 2918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Basically this is a 3-step process in which we call 2919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mainQSort3 to sort the small buckets [ss, j], but 2920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown also make a big effort to avoid the calls if we can. 2921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ss = runningOrder[i]; 2923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Step 1: 2926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Complete the big bucket [ss] by quicksorting 2927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown any unsorted small buckets [ss, j], for j != ss. 2928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Hopefully previous pointer-scanning phases have already 2929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown completed many of the small buckets [ss, j], so 2930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown we don't have to sort them at all. 2931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j <= 255; j++) { 2933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j != ss) { 2934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sb = (ss << 8) + j; 2935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ( ! (ftab[sb] & SETMASK) ) { 2936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 lo = ftab[sb] & CLEARMASK; 2937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 hi = (ftab[sb+1] & CLEARMASK) - 1; 2938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (hi > lo) { 2939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 2940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf4 ( " qsort [0x%x, 0x%x] " 2941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "done %d this %d\n", 2942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ss, j, numQSorted, hi - lo + 1 ); 2943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mainQSort3 ( 2944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr, block, quadrant, nblock, 2945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown lo, hi, BZ_N_RADIX, budget 2946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 2947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown numQSorted += (hi - lo + 1); 2948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (*budget < 0) return; 2949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab[sb] |= SETMASK; 2952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( !bigDone[ss], 1006 ); 2956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Step 2: 2959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Now scan this big bucket [ss] so as to synthesise the 2960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sorted order for small buckets [t, ss] for all t, 2961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown including, magically, the bucket [ss,ss] too. 2962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This will avoid doing Real Work in subsequent Step 1's. 2963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 2964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 2965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j <= 255; j++) { 2966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown copyStart[j] = ftab[(j << 8) + ss] & CLEARMASK; 2967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown copyEnd [j] = (ftab[(j << 8) + ss + 1] & CLEARMASK) - 1; 2968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = ftab[ss << 8] & CLEARMASK; j < copyStart[ss]; j++) { 2970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = ptr[j]-1; if (k < 0) k += nblock; 2971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[k]; 2972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!bigDone[c1]) 2973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[ copyStart[c1]++ ] = k; 2974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = (ftab[(ss+1) << 8] & CLEARMASK) - 1; j > copyEnd[ss]; j--) { 2976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = ptr[j]-1; if (k < 0) k += nblock; 2977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c1 = block[k]; 2978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!bigDone[c1]) 2979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ptr[ copyEnd[c1]-- ] = k; 2980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 2982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( (copyStart[ss]-1 == copyEnd[ss]) 2984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown || 2985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Extremely rare case missing in bzip2-1.0.0 and 1.0.1. 2986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Necessity for this case is demonstrated by compressing 2987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown a sequence of approximately 48.5 million of character 2988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 251; 1.0.0/1.0.1 will then die here. */ 2989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (copyStart[ss] == 0 && copyEnd[ss] == nblock-1), 2990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1007 ) 2991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j <= 255; j++) ftab[(j << 8) + ss] |= SETMASK; 2993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 2995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Step 3: 2996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The [ss] big bucket is now done. Record this fact, 2997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and update the quadrant descriptors. Remember to 2998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown update quadrants in the overshoot area too, if 2999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown necessary. The "if (i < 255)" test merely skips 3000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown this updating for the last bucket processed, since 3001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown updating for the last bucket is pointless. 3002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The quadrant array provides a way to incrementally 3004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cache sort orderings, as they appear, so as to 3005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown make subsequent comparisons in fullGtU() complete 3006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown faster. For repetitive blocks this makes a big 3007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown difference (but not big enough to be able to avoid 3008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the fallback sorting mechanism, exponential radix sort). 3009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The precise meaning is: at all times: 3011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for 0 <= i < nblock and 0 <= j <= nblock 3013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if block[i] != block[j], 3015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown then the relative values of quadrant[i] and 3017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[j] are meaningless. 3018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else { 3020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if quadrant[i] < quadrant[j] 3021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown then the string starting at i lexicographically 3022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown precedes the string starting at j 3023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else if quadrant[i] > quadrant[j] 3025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown then the string starting at j lexicographically 3026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown precedes the string starting at i 3027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 3029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the relative ordering of the strings starting 3030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown at i and j has not yet been determined. 3031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bigDone[ss] = True; 3034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i < 255) { 3036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 bbStart = ftab[ss << 8] & CLEARMASK; 3037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 bbSize = (ftab[(ss+1) << 8] & CLEARMASK) - bbStart; 3038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 shifts = 0; 3039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ((bbSize >> shifts) > 65534) shifts++; 3041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = bbSize-1; j >= 0; j--) { 3043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 a2update = ptr[bbStart + j]; 3044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 qVal = (UInt16)(j >> shifts); 3045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[a2update] = qVal; 3046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (a2update < BZ_N_OVERSHOOT) 3047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant[a2update + nblock] = qVal; 3048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( ((bbSize-1) >> shifts) <= 65535, 1002 ); 3050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 4) 3055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf3 ( " %d pointers, %d sorted, %d scanned\n", 3056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock, numQSorted, nblock - numQSorted ); 3057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef BIGFREQ 3060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef SETMASK 3061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef CLEARMASK 3062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 3065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Pre: 3066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock > 0 3067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown arr2 exists for [0 .. nblock-1 +N_OVERSHOOT] 3068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)arr2) [0 .. nblock-1] holds block 3069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown arr1 exists for [0 .. nblock-1] 3070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Post: 3072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)arr2) [0 .. nblock-1] holds block 3073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown All other areas of block destroyed 3074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ftab [ 0 .. 65536 ] destroyed 3075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown arr1 [0 .. nblock-1] holds sorted order 3076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 3077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_blockSort ( EState* s ) 3078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ptr = s->ptr; 3080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block = s->block; 3081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ftab = s->ftab; 3082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nblock = s->nblock; 3083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 verb = s->verbosity; 3084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 wfact = s->workFactor; 3085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* quadrant; 3086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 budget; 3087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 budgetInit; 3088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 3089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nblock < /* 10000 */1000 ) { 3091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb ); 3092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Calculate the location for quadrant, remembering to get 3094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the alignment right. Assumes that &(block[0]) is at least 3095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2-byte aligned -- this should be ok since block is really 3096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the first section of arr2. 3097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 3098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown i = nblock+BZ_N_OVERSHOOT; 3099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i & 1) i++; 3100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown quadrant = (UInt16*)(&(block[i])); 3101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* (wfact-1) / 3 puts the default-factor-30 3103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown transition point at very roughly the same place as 3104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown with v0.1 and v0.9.0. 3105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Not that it particularly matters any more, since the 3106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown resulting compressed stream is now the same regardless 3107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown of whether or not we use the main sort or fallback sort. 3108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 3109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (wfact < 1 ) wfact = 1; 3110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (wfact > 100) wfact = 100; 3111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown budgetInit = nblock * ((wfact-1) / 3); 3112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown budget = budgetInit; 3113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mainSort ( ptr, block, quadrant, ftab, nblock, verb, &budget ); 3115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (0 && verb >= 3) 3116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf3 ( " %d work, %d block, ratio %5.2f\n", 3117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown budgetInit - budget, 3118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nblock, 3119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (float)(budgetInit - budget) / 3120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (float)(nblock==0 ? 1 : nblock) ); 3121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (budget < 0) { 3122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verb >= 2) 3123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf0 ( " too repetitive; using fallback" 3124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown " sorting algorithm\n" ); 3125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fallbackSort ( s->arr1, s->arr2, ftab, nblock, verb ); 3126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->origPtr = -1; 3130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < s->nblock; i++) 3131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ptr[i] == 0) 3132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { s->origPtr = i; break; }; 3133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( s->origPtr != -1, 1003 ); 3135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end blocksort.c ---*/ 3140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Huffman coding low-level stuff ---*/ 3144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- huffman.c ---*/ 3145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 3148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 3149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 3150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 3152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 3154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 3155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 3156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 3158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 3159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 3161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 3162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 3163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 3164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 3166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 3167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 3169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 3170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 3171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 3173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 3174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 3176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 3178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 3179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 3180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 3181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 3185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 3186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 3187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 3189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 3190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 3191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 3192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 3193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 3194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 3195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 3196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 3197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 3199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 3200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define WEIGHTOF(zz0) ((zz0) & 0xffffff00) 3205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define DEPTHOF(zz1) ((zz1) & 0x000000ff) 3206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define MYMAX(zz2,zz3) ((zz2) > (zz3) ? (zz2) : (zz3)) 3207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ADDWEIGHTS(zw1,zw2) \ 3209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (WEIGHTOF(zw1)+WEIGHTOF(zw2)) | \ 3210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (1 + MYMAX(DEPTHOF(zw1),DEPTHOF(zw2))) 3211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define UPHEAP(z) \ 3213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 3214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zz, tmp; \ 3215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zz = z; tmp = heap[zz]; \ 3216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (weight[tmp] < weight[heap[zz >> 1]]) { \ 3217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[zz] = heap[zz >> 1]; \ 3218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zz >>= 1; \ 3219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 3220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[zz] = tmp; \ 3221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define DOWNHEAP(z) \ 3224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 3225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zz, yy, tmp; \ 3226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zz = z; tmp = heap[zz]; \ 3227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { \ 3228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yy = zz << 1; \ 3229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (yy > nHeap) break; \ 3230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (yy < nHeap && \ 3231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown weight[heap[yy+1]] < weight[heap[yy]]) \ 3232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yy++; \ 3233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (weight[tmp] < weight[heap[yy]]) break; \ 3234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[zz] = heap[yy]; \ 3235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zz = yy; \ 3236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 3237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[zz] = tmp; \ 3238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_hbMakeCodeLengths ( UChar *len, 3243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 *freq, 3244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 alphaSize, 3245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 maxLen ) 3246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Nodes and heap entries run from 1. Entry 0 3249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for both the heap and nodes is a sentinel. 3250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nNodes, nHeap, n1, n2, i, j, k; 3252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool tooLong; 3253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 heap [ BZ_MAX_ALPHA_SIZE + 2 ]; 3255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 weight [ BZ_MAX_ALPHA_SIZE * 2 ]; 3256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 parent [ BZ_MAX_ALPHA_SIZE * 2 ]; 3257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) 3259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown weight[i+1] = (freq[i] == 0 ? 1 : freq[i]) << 8; 3260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 3262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nNodes = alphaSize; 3264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nHeap = 0; 3265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[0] = 0; 3267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown weight[0] = 0; 3268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown parent[0] = -2; 3269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= alphaSize; i++) { 3271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown parent[i] = -1; 3272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nHeap++; 3273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[nHeap] = i; 3274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UPHEAP(nHeap); 3275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( nHeap < (BZ_MAX_ALPHA_SIZE+2), 2001 ); 3278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nHeap > 1) { 3280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n1 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1); 3281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n2 = heap[1]; heap[1] = heap[nHeap]; nHeap--; DOWNHEAP(1); 3282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nNodes++; 3283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown parent[n1] = parent[n2] = nNodes; 3284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown weight[nNodes] = ADDWEIGHTS(weight[n1], weight[n2]); 3285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown parent[nNodes] = -1; 3286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nHeap++; 3287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown heap[nHeap] = nNodes; 3288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UPHEAP(nHeap); 3289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( nNodes < (BZ_MAX_ALPHA_SIZE * 2), 2002 ); 3292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tooLong = False; 3294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= alphaSize; i++) { 3295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 3296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k = i; 3297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (parent[k] >= 0) { k = parent[k]; j++; } 3298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown len[i-1] = j; 3299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (j > maxLen) tooLong = True; 3300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (! tooLong) break; 3303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 17 Oct 04: keep-going condition for the following loop used 3305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown to be 'i < alphaSize', which missed the last element, 3306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown theoretically leading to the possibility of the compressor 3307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown looping. However, this count-scaling step is only needed if 3308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown one of the generated Huffman code words is longer than 3309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown maxLen, which up to and including version 1.0.2 was 20 bits, 3310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown which is extremely unlikely. In version 1.0.3 maxLen was 3311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown changed to 17 bits, which has minimal effect on compression 3312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ratio, but does mean this scaling step is used from time to 3313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown time, enough to verify that it works. 3314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This means that bzip2-1.0.3 and later will only produce 3316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Huffman codes with a maximum length of 17 bits. However, in 3317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown order to preserve backwards compatibility with bitstreams 3318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown produced by versions pre-1.0.3, the decompressor must still 3319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown handle lengths of up to 20. */ 3320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i <= alphaSize; i++) { 3322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = weight[i] >> 8; 3323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 1 + (j / 2); 3324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown weight[i] = j << 8; 3325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_hbAssignCodes ( Int32 *code, 3332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar *length, 3333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 minLen, 3334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 maxLen, 3335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 alphaSize ) 3336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 n, vec, i; 3338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vec = 0; 3340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (n = minLen; n <= maxLen; n++) { 3341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) 3342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (length[i] == n) { code[i] = vec; vec++; }; 3343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vec <<= 1; 3344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_hbCreateDecodeTables ( Int32 *limit, 3350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 *base, 3351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 *perm, 3352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar *length, 3353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 minLen, 3354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 maxLen, 3355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 alphaSize ) 3356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 pp, i, j, vec; 3358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pp = 0; 3360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = minLen; i <= maxLen; i++) 3361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < alphaSize; j++) 3362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (length[j] == i) { perm[pp] = j; pp++; }; 3363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < BZ_MAX_CODE_LEN; i++) base[i] = 0; 3365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) base[length[i]+1]++; 3366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 1; i < BZ_MAX_CODE_LEN; i++) base[i] += base[i-1]; 3368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < BZ_MAX_CODE_LEN; i++) limit[i] = 0; 3370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vec = 0; 3371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = minLen; i <= maxLen; i++) { 3373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vec += (base[i+1] - base[i]); 3374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown limit[i] = vec-1; 3375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vec <<= 1; 3376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = minLen + 1; i <= maxLen; i++) 3378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown base[i] = ((limit[i-1] + 1) << 1) - base[i]; 3379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end huffman.c ---*/ 3384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Compression machinery (not incl block sorting) ---*/ 3388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- compress.c ---*/ 3389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 3390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 3392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 3393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 3394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 3396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 3398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 3399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 3400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 3402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 3403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 3405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 3406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 3407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 3408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 3410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 3411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 3413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 3414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 3415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 3417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 3418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 3420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 3422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 3423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 3424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 3425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 3429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 3430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 3431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 3433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 3434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 3435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 3436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 3437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 3438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 3439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 3440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 3441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 3443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 3444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 3446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown CHANGES 3447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ~~~~~~~ 3448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0 -- original version. 3449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0a/b -- no changes in this file. 3451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0c 3453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * changed setting of nGroups in sendMTFValues() so as to 3454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown do a bit better on small files 3455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 3456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Bit stream I/O ---*/ 3461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_bsInitWrite ( EState* s ) 3465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive = 0; 3467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff = 0; 3468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid bsFinishWrite ( EState* s ) 3474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (s->bsLive > 0) { 3476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->zbits[s->numZ] = (UChar)(s->bsBuff >> 24); 3477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->numZ++; 3478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff <<= 8; 3479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive -= 8; 3480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define bsNEEDW(nz) \ 3486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 3487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (s->bsLive >= 8) { \ 3488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->zbits[s->numZ] \ 3489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = (UChar)(s->bsBuff >> 24); \ 3490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->numZ++; \ 3491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff <<= 8; \ 3492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive -= 8; \ 3493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 3494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown__inline__ 3500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid bsW ( EState* s, Int32 n, UInt32 v ) 3501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsNEEDW ( n ); 3503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff |= (v << (32 - s->bsLive - n)); 3504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive += n; 3505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid bsPutUInt32 ( EState* s, UInt32 u ) 3511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 8, (u >> 24) & 0xffL ); 3513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 8, (u >> 16) & 0xffL ); 3514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 8, (u >> 8) & 0xffL ); 3515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 8, u & 0xffL ); 3516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid bsPutUChar ( EState* s, UChar c ) 3522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW( s, 8, (UInt32)c ); 3524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- The back end proper ---*/ 3529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid makeMaps_e ( EState* s ) 3534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 3536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nInUse = 0; 3537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) 3538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->inUse[i]) { 3539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->unseqToSeq[i] = s->nInUse; 3540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nInUse++; 3541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid generateMTFValues ( EState* s ) 3548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar yy[256]; 3550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i, j; 3551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 zPend; 3552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 wr; 3553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 EOB; 3554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 3556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown After sorting (eg, here), 3557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->arr1 [ 0 .. s->nblock-1 ] holds sorted order, 3558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and 3559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UChar*)s->arr2) [ 0 .. s->nblock-1 ] 3560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown holds the original block data. 3561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The first thing to do is generate the MTF values, 3563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and put them in 3564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((UInt16*)s->arr1) [ 0 .. s->nblock-1 ]. 3565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Because there are strictly fewer or equal MTF values 3566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown than block values, ptr values in this area are overwritten 3567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown with MTF values only when they are no longer needed. 3568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The final compressed bitstream is generated into the 3570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown area starting at 3571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (UChar*) (&((UChar*)s->arr2)[s->nblock]) 3572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown These storage aliases are set up in bzCompressInit(), 3574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown except for the last one, which is arranged in 3575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown compressBlock(). 3576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 3577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* ptr = s->ptr; 3578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* block = s->block; 3579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* mtfv = s->mtfv; 3580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown makeMaps_e ( s ); 3582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EOB = s->nInUse+1; 3583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i <= EOB; i++) s->mtfFreq[i] = 0; 3585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown wr = 0; 3587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend = 0; 3588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < s->nInUse; i++) yy[i] = (UChar) i; 3589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < s->nblock; i++) { 3591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar ll_i; 3592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD ( wr <= i, "generateMTFValues(1)" ); 3593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ptr[i]-1; if (j < 0) j += s->nblock; 3594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ll_i = s->unseqToSeq[block[j]]; 3595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertD ( ll_i < s->nInUse, "generateMTFValues(2a)" ); 3596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (yy[0] == ll_i) { 3598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend++; 3599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend > 0) { 3602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend--; 3603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 3604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend & 1) { 3605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = BZ_RUNB; wr++; 3606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfFreq[BZ_RUNB]++; 3607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = BZ_RUNA; wr++; 3609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfFreq[BZ_RUNA]++; 3610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend < 2) break; 3612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend = (zPend - 2) / 2; 3613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 3614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend = 0; 3615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 3617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UChar rtmp; 3618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UChar* ryy_j; 3619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UChar rll_i; 3620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown rtmp = yy[1]; 3621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yy[1] = yy[0]; 3622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ryy_j = &(yy[1]); 3623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown rll_i = ll_i; 3624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( rll_i != rtmp ) { 3625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UChar rtmp2; 3626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ryy_j++; 3627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown rtmp2 = rtmp; 3628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown rtmp = *ryy_j; 3629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *ryy_j = rtmp2; 3630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 3631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown yy[0] = rtmp; 3632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = ryy_j - &(yy[0]); 3633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = j+1; wr++; s->mtfFreq[j+1]++; 3634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend > 0) { 3640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend--; 3641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 3642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend & 1) { 3643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = BZ_RUNB; wr++; 3644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfFreq[BZ_RUNB]++; 3645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = BZ_RUNA; wr++; 3647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfFreq[BZ_RUNA]++; 3648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zPend < 2) break; 3650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend = (zPend - 2) / 2; 3651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 3652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zPend = 0; 3653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv[wr] = EOB; wr++; s->mtfFreq[EOB]++; 3656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nMTF = wr; 3658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 3659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 3662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_LESSER_ICOST 0 3663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_GREATER_ICOST 15 3664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 3666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid sendMTFValues ( EState* s ) 3667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 3668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 v, t, i, j, gs, ge, totc, bt, bc, iter; 3669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nSelectors, alphaSize, minLen, maxLen, selCtr; 3670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nGroups, nBytes; 3671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar len [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 3674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown is a global since the decoder also needs it. 3675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 code[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 3677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE]; 3678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are also globals only used in this proc. 3679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Made global to keep stack frame size small. 3680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 cost[BZ_N_GROUPS]; 3684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 fave[BZ_N_GROUPS]; 3685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16* mtfv = s->mtfv; 3687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 3689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf3( " %d in block, %d after MTF & 1-2 coding, " 3690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "%d+2 syms in use\n", 3691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock, s->nMTF, s->nInUse ); 3692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown alphaSize = s->nInUse+2; 3694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < BZ_N_GROUPS; t++) 3695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (v = 0; v < alphaSize; v++) 3696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len[t][v] = BZ_GREATER_ICOST; 3697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Decide how many coding tables to use ---*/ 3699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( s->nMTF > 0, 3001 ); 3700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nMTF < 200) nGroups = 2; else 3701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nMTF < 600) nGroups = 3; else 3702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nMTF < 1200) nGroups = 4; else 3703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nMTF < 2400) nGroups = 5; else 3704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nGroups = 6; 3705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Generate an initial set of coding tables ---*/ 3707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 3708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 nPart, remF, tFreq, aFreq; 3709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nPart = nGroups; 3711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown remF = s->nMTF; 3712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = 0; 3713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nPart > 0) { 3714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tFreq = remF / nPart; 3715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ge = gs-1; 3716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown aFreq = 0; 3717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (aFreq < tFreq && ge < alphaSize-1) { 3718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ge++; 3719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown aFreq += s->mtfFreq[ge]; 3720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ge > gs 3723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown && nPart != nGroups && nPart != 1 3724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown && ((nGroups-nPart) % 2 == 1)) { 3725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown aFreq -= s->mtfFreq[ge]; 3726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ge--; 3727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (0 && s->verbosity >= 3) 3730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf5( " initial group %d, [%d .. %d], " 3731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "has %d syms (%4.1f%%)\n", 3732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nPart, gs, ge, aFreq, 3733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (100.0 * (float)aFreq) / (float)(s->nMTF) ); 3734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (v = 0; v < alphaSize; v++) 3736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (v >= gs && v <= ge) 3737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len[nPart-1][v] = BZ_LESSER_ICOST; else 3738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len[nPart-1][v] = BZ_GREATER_ICOST; 3739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nPart--; 3741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = ge+1; 3742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown remF -= aFreq; 3743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- 3747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Iterate up to BZ_N_ITERS times to improve the tables. 3748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ---*/ 3749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (iter = 0; iter < BZ_N_ITERS; iter++) { 3750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) fave[t] = 0; 3752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) 3754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (v = 0; v < alphaSize; v++) 3755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rfreq[t][v] = 0; 3756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- 3758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Set up an auxiliary length table which is used to fast-track 3759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the common case (nGroups == 6). 3760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ---*/ 3761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nGroups == 6) { 3762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (v = 0; v < alphaSize; v++) { 3763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len_pack[v][0] = (s->len[1][v] << 16) | s->len[0][v]; 3764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len_pack[v][1] = (s->len[3][v] << 16) | s->len[2][v]; 3765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len_pack[v][2] = (s->len[5][v] << 16) | s->len[4][v]; 3766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nSelectors = 0; 3770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown totc = 0; 3771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = 0; 3772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 3773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Set group start & end marks. --*/ 3775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (gs >= s->nMTF) break; 3776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ge = gs + BZ_G_SIZE - 1; 3777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ge >= s->nMTF) ge = s->nMTF-1; 3778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Calculate the cost of this group as coded 3781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown by each of the coding tables. 3782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) cost[t] = 0; 3784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nGroups == 6 && 50 == ge-gs+1) { 3786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- fast track the common case ---*/ 3787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UInt32 cost01, cost23, cost45; 3788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown register UInt16 icv; 3789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost01 = cost23 = cost45 = 0; 3790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_ITER(nn) \ 3792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown icv = mtfv[gs+(nn)]; \ 3793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost01 += s->len_pack[icv][0]; \ 3794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost23 += s->len_pack[icv][1]; \ 3795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost45 += s->len_pack[icv][2]; \ 3796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(0); BZ_ITER(1); BZ_ITER(2); BZ_ITER(3); BZ_ITER(4); 3798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(5); BZ_ITER(6); BZ_ITER(7); BZ_ITER(8); BZ_ITER(9); 3799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(10); BZ_ITER(11); BZ_ITER(12); BZ_ITER(13); BZ_ITER(14); 3800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(15); BZ_ITER(16); BZ_ITER(17); BZ_ITER(18); BZ_ITER(19); 3801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(20); BZ_ITER(21); BZ_ITER(22); BZ_ITER(23); BZ_ITER(24); 3802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(25); BZ_ITER(26); BZ_ITER(27); BZ_ITER(28); BZ_ITER(29); 3803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(30); BZ_ITER(31); BZ_ITER(32); BZ_ITER(33); BZ_ITER(34); 3804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(35); BZ_ITER(36); BZ_ITER(37); BZ_ITER(38); BZ_ITER(39); 3805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(40); BZ_ITER(41); BZ_ITER(42); BZ_ITER(43); BZ_ITER(44); 3806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITER(45); BZ_ITER(46); BZ_ITER(47); BZ_ITER(48); BZ_ITER(49); 3807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# undef BZ_ITER 3809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost[0] = cost01 & 0xffff; cost[1] = cost01 >> 16; 3811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost[2] = cost23 & 0xffff; cost[3] = cost23 >> 16; 3812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cost[4] = cost45 & 0xffff; cost[5] = cost45 >> 16; 3813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- slow version which correctly handles all situations ---*/ 3816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = gs; i <= ge; i++) { 3817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 icv = mtfv[i]; 3818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) cost[t] += s->len[t][icv]; 3819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Find the coding table which is best for this group, 3824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and record its identity in the selector table. 3825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bc = 999999999; bt = -1; 3827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) 3828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (cost[t] < bc) { bc = cost[t]; bt = t; }; 3829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown totc += bc; 3830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fave[bt]++; 3831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->selector[nSelectors] = bt; 3832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nSelectors++; 3833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Increment the symbol frequencies for the selected table. 3836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nGroups == 6 && 50 == ge-gs+1) { 3838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- fast track the common case ---*/ 3839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_ITUR(nn) s->rfreq[bt][ mtfv[gs+(nn)] ]++ 3841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(0); BZ_ITUR(1); BZ_ITUR(2); BZ_ITUR(3); BZ_ITUR(4); 3843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(5); BZ_ITUR(6); BZ_ITUR(7); BZ_ITUR(8); BZ_ITUR(9); 3844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(10); BZ_ITUR(11); BZ_ITUR(12); BZ_ITUR(13); BZ_ITUR(14); 3845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(15); BZ_ITUR(16); BZ_ITUR(17); BZ_ITUR(18); BZ_ITUR(19); 3846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(20); BZ_ITUR(21); BZ_ITUR(22); BZ_ITUR(23); BZ_ITUR(24); 3847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(25); BZ_ITUR(26); BZ_ITUR(27); BZ_ITUR(28); BZ_ITUR(29); 3848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(30); BZ_ITUR(31); BZ_ITUR(32); BZ_ITUR(33); BZ_ITUR(34); 3849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(35); BZ_ITUR(36); BZ_ITUR(37); BZ_ITUR(38); BZ_ITUR(39); 3850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(40); BZ_ITUR(41); BZ_ITUR(42); BZ_ITUR(43); BZ_ITUR(44); 3851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITUR(45); BZ_ITUR(46); BZ_ITUR(47); BZ_ITUR(48); BZ_ITUR(49); 3852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# undef BZ_ITUR 3854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 3856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- slow version which correctly handles all situations ---*/ 3857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = gs; i <= ge; i++) 3858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->rfreq[bt][ mtfv[i] ]++; 3859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = ge+1; 3862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) { 3864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf2 ( " pass %d: size is %d, grp uses are ", 3865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown iter+1, totc/8 ); 3866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) 3867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1 ( "%d ", fave[t] ); 3868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf0 ( "\n" ); 3869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 3872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Recompute the tables based on the accumulated frequencies. 3873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 3874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* maxLen was changed from 20 to 17 in bzip2-1.0.3. See 3875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown comment in huffman.c for details. */ 3876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) 3877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_hbMakeCodeLengths ( &(s->len[t][0]), &(s->rfreq[t][0]), 3878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown alphaSize, 17 /*20*/ ); 3879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( nGroups < 8, 3002 ); 3883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( nSelectors < 32768 && 3884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nSelectors <= (2 + (900000 / BZ_G_SIZE)), 3885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3003 ); 3886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Compute MTF values for the selectors. ---*/ 3889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 3890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar pos[BZ_N_GROUPS], ll_i, tmp2, tmp; 3891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nGroups; i++) pos[i] = i; 3892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nSelectors; i++) { 3893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ll_i = s->selector[i]; 3894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 3895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp = pos[j]; 3896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ( ll_i != tmp ) { 3897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j++; 3898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp2 = tmp; 3899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown tmp = pos[j]; 3900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pos[j] = tmp2; 3901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 3902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown pos[0] = tmp; 3903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->selectorMtf[i] = j; 3904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 3906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Assign actual codes for the tables. --*/ 3908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) { 3909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown minLen = 32; 3910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown maxLen = 0; 3911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) { 3912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->len[t][i] > maxLen) maxLen = s->len[t][i]; 3913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->len[t][i] < minLen) minLen = s->len[t][i]; 3914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( !(maxLen > 17 /*20*/ ), 3004 ); 3916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( !(minLen < 1), 3005 ); 3917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_hbAssignCodes ( &(s->code[t][0]), &(s->len[t][0]), 3918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown minLen, maxLen, alphaSize ); 3919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Transmit the mapping table. ---*/ 3922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 3923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool inUse16[16]; 3924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 16; i++) { 3925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown inUse16[i] = False; 3926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < 16; j++) 3927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->inUse[i * 16 + j]) inUse16[i] = True; 3928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nBytes = s->numZ; 3931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 16; i++) 3932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (inUse16[i]) bsW(s,1,1); else bsW(s,1,0); 3933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 16; i++) 3935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (inUse16[i]) 3936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < 16; j++) { 3937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->inUse[i * 16 + j]) bsW(s,1,1); else bsW(s,1,0); 3938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 3941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1( " bytes: mapping %d, ", s->numZ-nBytes ); 3942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Now the selectors. ---*/ 3945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nBytes = s->numZ; 3946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 3, nGroups ); 3947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 15, nSelectors ); 3948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nSelectors; i++) { 3949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < s->selectorMtf[i]; j++) bsW(s,1,1); 3950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW(s,1,0); 3951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 3953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1( "selectors %d, ", s->numZ-nBytes ); 3954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- Now the coding tables. ---*/ 3956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nBytes = s->numZ; 3957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (t = 0; t < nGroups; t++) { 3959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 curr = s->len[t][0]; 3960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 5, curr ); 3961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < alphaSize; i++) { 3962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (curr < s->len[t][i]) { bsW(s,2,2); curr++; /* 10 */ }; 3963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (curr > s->len[t][i]) { bsW(s,2,3); curr--; /* 11 */ }; 3964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 1, 0 ); 3965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 3967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 3969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1 ( "code lengths %d, ", s->numZ-nBytes ); 3970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- And finally, the block data proper ---*/ 3972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nBytes = s->numZ; 3973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown selCtr = 0; 3974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = 0; 3975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 3976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (gs >= s->nMTF) break; 3977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ge = gs + BZ_G_SIZE - 1; 3978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ge >= s->nMTF) ge = s->nMTF-1; 3979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( s->selector[selCtr] < nGroups, 3006 ); 3980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nGroups == 6 && 50 == ge-gs+1) { 3982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- fast track the common case ---*/ 3983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt16 mtfv_i; 3984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar* s_len_sel_selCtr 3985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = &(s->len[s->selector[selCtr]][0]); 3986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32* s_code_sel_selCtr 3987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = &(s->code[s->selector[selCtr]][0]); 3988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define BZ_ITAH(nn) \ 3990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mtfv_i = mtfv[gs+(nn)]; \ 3991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, \ 3992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s_len_sel_selCtr[mtfv_i], \ 3993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s_code_sel_selCtr[mtfv_i] ) 3994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(0); BZ_ITAH(1); BZ_ITAH(2); BZ_ITAH(3); BZ_ITAH(4); 3996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(5); BZ_ITAH(6); BZ_ITAH(7); BZ_ITAH(8); BZ_ITAH(9); 3997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(10); BZ_ITAH(11); BZ_ITAH(12); BZ_ITAH(13); BZ_ITAH(14); 3998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(15); BZ_ITAH(16); BZ_ITAH(17); BZ_ITAH(18); BZ_ITAH(19); 3999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(20); BZ_ITAH(21); BZ_ITAH(22); BZ_ITAH(23); BZ_ITAH(24); 4000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(25); BZ_ITAH(26); BZ_ITAH(27); BZ_ITAH(28); BZ_ITAH(29); 4001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(30); BZ_ITAH(31); BZ_ITAH(32); BZ_ITAH(33); BZ_ITAH(34); 4002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(35); BZ_ITAH(36); BZ_ITAH(37); BZ_ITAH(38); BZ_ITAH(39); 4003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(40); BZ_ITAH(41); BZ_ITAH(42); BZ_ITAH(43); BZ_ITAH(44); 4004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_ITAH(45); BZ_ITAH(46); BZ_ITAH(47); BZ_ITAH(48); BZ_ITAH(49); 4005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# undef BZ_ITAH 4007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 4009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*--- slow version which correctly handles all situations ---*/ 4010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = gs; i <= ge; i++) { 4011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 4012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->len [s->selector[selCtr]] [mtfv[i]], 4013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->code [s->selector[selCtr]] [mtfv[i]] ); 4014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown gs = ge+1; 4019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown selCtr++; 4020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH( selCtr == nSelectors, 3007 ); 4022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 4024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1( "codes %d\n", s->numZ-nBytes ); 4025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_compressBlock ( EState* s, Bool is_last_block ) 4030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock > 0) { 4032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_FINALISE_CRC ( s->blockCRC ); 4034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->combinedCRC = (s->combinedCRC << 1) | (s->combinedCRC >> 31); 4035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->combinedCRC ^= s->blockCRC; 4036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockNo > 1) s->numZ = 0; 4037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 2) 4039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf4( " block %d: crc = 0x%08x, " 4040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "combined CRC = 0x%08x, size = %d\n", 4041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockNo, s->blockCRC, s->combinedCRC, s->nblock ); 4042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_blockSort ( s ); 4044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->zbits = (UChar*) (&((UChar*)s->arr2)[s->nblock]); 4047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- If this is the first block, create the stream header. --*/ 4049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockNo == 1) { 4050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bsInitWrite ( s ); 4051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, BZ_HDR_B ); 4052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, BZ_HDR_Z ); 4053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, BZ_HDR_h ); 4054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, (UChar)(BZ_HDR_0 + s->blockSize100k) ); 4055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock > 0) { 4058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x31 ); bsPutUChar ( s, 0x41 ); 4060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x59 ); bsPutUChar ( s, 0x26 ); 4061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x53 ); bsPutUChar ( s, 0x59 ); 4062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Now the block's CRC, so it is in a known place. --*/ 4064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUInt32 ( s, s->blockCRC ); 4065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- 4067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Now a single bit indicating (non-)randomisation. 4068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown As of version 0.9.5, we use a better sorting algorithm 4069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown which makes randomisation unnecessary. So always set 4070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the randomised bit to 'no'. Of course, the decoder 4071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown still needs to be able to handle randomised blocks 4072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown so as to maintain backwards compatibility with 4073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown older versions of bzip2. 4074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown --*/ 4075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW(s,1,0); 4076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsW ( s, 24, s->origPtr ); 4078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown generateMTFValues ( s ); 4079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown sendMTFValues ( s ); 4080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- If this is the last block, add the stream trailer. --*/ 4084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (is_last_block) { 4085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x17 ); bsPutUChar ( s, 0x72 ); 4087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x45 ); bsPutUChar ( s, 0x38 ); 4088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUChar ( s, 0x50 ); bsPutUChar ( s, 0x90 ); 4089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsPutUInt32 ( s, s->combinedCRC ); 4090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 2) 4091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf1( " final combined CRC = 0x%08x\n ", s->combinedCRC ); 4092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bsFinishWrite ( s ); 4093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end compress.c ---*/ 4099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Table for randomising repetitive blocks ---*/ 4104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- randtable.c ---*/ 4105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 4108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 4109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 4110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 4112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 4114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 4115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 4116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 4118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 4119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 4121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 4122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 4123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 4124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 4126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 4127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 4129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 4130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 4131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 4133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 4134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 4136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 4138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 4139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 4140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 4141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 4142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 4143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 4145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 4146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 4147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 4149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 4150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 4151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 4152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 4153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 4154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 4155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 4156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 4157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 4159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 4160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 4165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt32 BZ2_rNums[512] = { 4166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 619, 720, 127, 481, 931, 816, 813, 233, 566, 247, 4167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 985, 724, 205, 454, 863, 491, 741, 242, 949, 214, 4168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 733, 859, 335, 708, 621, 574, 73, 654, 730, 472, 4169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 419, 436, 278, 496, 867, 210, 399, 680, 480, 51, 4170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 878, 465, 811, 169, 869, 675, 611, 697, 867, 561, 4171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 862, 687, 507, 283, 482, 129, 807, 591, 733, 623, 4172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 150, 238, 59, 379, 684, 877, 625, 169, 643, 105, 4173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 170, 607, 520, 932, 727, 476, 693, 425, 174, 647, 4174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 73, 122, 335, 530, 442, 853, 695, 249, 445, 515, 4175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 909, 545, 703, 919, 874, 474, 882, 500, 594, 612, 4176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 641, 801, 220, 162, 819, 984, 589, 513, 495, 799, 4177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 161, 604, 958, 533, 221, 400, 386, 867, 600, 782, 4178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 382, 596, 414, 171, 516, 375, 682, 485, 911, 276, 4179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 98, 553, 163, 354, 666, 933, 424, 341, 533, 870, 4180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 227, 730, 475, 186, 263, 647, 537, 686, 600, 224, 4181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 469, 68, 770, 919, 190, 373, 294, 822, 808, 206, 4182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 184, 943, 795, 384, 383, 461, 404, 758, 839, 887, 4183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 715, 67, 618, 276, 204, 918, 873, 777, 604, 560, 4184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 951, 160, 578, 722, 79, 804, 96, 409, 713, 940, 4185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 652, 934, 970, 447, 318, 353, 859, 672, 112, 785, 4186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 645, 863, 803, 350, 139, 93, 354, 99, 820, 908, 4187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 609, 772, 154, 274, 580, 184, 79, 626, 630, 742, 4188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 653, 282, 762, 623, 680, 81, 927, 626, 789, 125, 4189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 411, 521, 938, 300, 821, 78, 343, 175, 128, 250, 4190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 170, 774, 972, 275, 999, 639, 495, 78, 352, 126, 4191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 857, 956, 358, 619, 580, 124, 737, 594, 701, 612, 4192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 669, 112, 134, 694, 363, 992, 809, 743, 168, 974, 4193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 944, 375, 748, 52, 600, 747, 642, 182, 862, 81, 4194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 344, 805, 988, 739, 511, 655, 814, 334, 249, 515, 4195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 897, 955, 664, 981, 649, 113, 974, 459, 893, 228, 4196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 433, 837, 553, 268, 926, 240, 102, 654, 459, 51, 4197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 686, 754, 806, 760, 493, 403, 415, 394, 687, 700, 4198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 946, 670, 656, 610, 738, 392, 760, 799, 887, 653, 4199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 978, 321, 576, 617, 626, 502, 894, 679, 243, 440, 4200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 680, 879, 194, 572, 640, 724, 926, 56, 204, 700, 4201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 707, 151, 457, 449, 797, 195, 791, 558, 945, 679, 4202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 297, 59, 87, 824, 713, 663, 412, 693, 342, 606, 4203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 134, 108, 571, 364, 631, 212, 174, 643, 304, 329, 4204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 343, 97, 430, 751, 497, 314, 983, 374, 822, 928, 4205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 140, 206, 73, 263, 980, 736, 876, 478, 430, 305, 4206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 170, 514, 364, 692, 829, 82, 855, 953, 676, 246, 4207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 369, 970, 294, 750, 807, 827, 150, 790, 288, 923, 4208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 804, 378, 215, 828, 592, 281, 565, 555, 710, 82, 4209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 896, 831, 547, 261, 524, 462, 293, 465, 502, 56, 4210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 661, 821, 976, 991, 658, 869, 905, 758, 745, 193, 4211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 768, 550, 608, 933, 378, 286, 215, 979, 792, 961, 4212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 61, 688, 793, 644, 986, 403, 106, 366, 905, 644, 4213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 372, 567, 466, 434, 645, 210, 389, 550, 919, 135, 4214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 780, 773, 635, 389, 707, 100, 626, 958, 165, 504, 4215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 920, 176, 193, 713, 857, 265, 203, 50, 668, 108, 4216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 645, 990, 626, 197, 510, 357, 358, 850, 858, 364, 4217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 936, 638 4218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 4219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end randtable.c ---*/ 4223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Table for doing CRCs ---*/ 4227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- crctable.c ---*/ 4228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 4231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 4232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 4233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 4235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 4237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 4238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 4239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 4241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 4242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 4244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 4245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 4246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 4247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 4249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 4250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 4252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 4253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 4254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 4256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 4257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 4259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 4261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 4262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 4263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 4264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 4265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 4266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 4268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 4269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 4270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 4272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 4273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 4274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 4275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 4276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 4277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 4278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 4279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 4280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 4282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 4283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 4289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown I think this is an implementation of the AUTODIN-II, 4290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ethernet & FDDI 32-bit CRC standard. Vaguely derived 4291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown from code by Rob Warnock, in Section 51 of the 4292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown comp.compression FAQ. 4293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 4294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownUInt32 BZ2_crc32Table[256] = { 4296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- Ugly, innit? --*/ 4298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L, 4300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L, 4301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L, 4302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL, 4303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L, 4304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L, 4305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L, 4306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL, 4307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L, 4308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L, 4309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L, 4310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL, 4311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L, 4312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L, 4313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L, 4314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL, 4315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL, 4316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L, 4317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L, 4318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL, 4319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL, 4320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L, 4321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L, 4322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL, 4323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL, 4324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L, 4325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L, 4326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL, 4327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL, 4328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L, 4329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L, 4330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL, 4331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L, 4332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL, 4333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL, 4334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L, 4335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L, 4336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL, 4337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL, 4338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L, 4339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L, 4340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL, 4341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL, 4342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L, 4343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L, 4344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL, 4345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL, 4346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L, 4347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L, 4348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL, 4349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L, 4350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L, 4351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L, 4352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL, 4353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L, 4354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L, 4355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L, 4356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL, 4357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L, 4358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L, 4359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L, 4360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL, 4361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L, 4362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L 4363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 4364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end crctable.c ---*/ 4368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Library top-level functions. ---*/ 4372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- bzlib.c ---*/ 4373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 4374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 4376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is a part of bzip2 and/or libbzip2, a program and 4377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown library for lossless, block-sorting data compression. 4378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 1996-2004 Julian R Seward. All rights reserved. 4380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Redistribution and use in source and binary forms, with or without 4382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modification, are permitted provided that the following conditions 4383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown are met: 4384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 1. Redistributions of source code must retain the above copyright 4386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown notice, this list of conditions and the following disclaimer. 4387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2. The origin of this software must not be misrepresented; you must 4389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not claim that you wrote the original software. If you use this 4390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown software in a product, an acknowledgment in the product 4391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown documentation would be appreciated but is not required. 4392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3. Altered source versions must be plainly marked as such, and must 4394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown not be misrepresented as being the original software. 4395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4. The name of the author may not be used to endorse or promote 4397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown products derived from this software without specific prior written 4398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown permission. 4399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 4401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 4402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 4404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 4406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 4407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 4408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 4409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 4410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 4411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Julian Seward, Cambridge, UK. 4413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@bzip.org 4414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzip2/libbzip2 version 1.0 of 21 March 2000 4415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is based on (at least) the work of: 4417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Mike Burrows 4418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown David Wheeler 4419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Peter Fenwick 4420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Alistair Moffat 4421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Radford Neal 4422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Ian H. Witten 4423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Robert Sedgewick 4424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Jon L. Bentley 4425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown For more information on these sources, see the manual. 4427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 4428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 4430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown CHANGES 4431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ~~~~~~~ 4432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0 -- original version. 4433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0a/b -- no changes in this file. 4435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 0.9.0c 4437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * made zero-length BZ_FLUSH work correctly in bzCompress(). 4438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * fixed bzWrite/bzRead to ignore zero-length requests. 4439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * fixed bzread to correctly handle read requests after EOF. 4440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * wrong parameter order in call to bzDecompressInit in 4441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzBuffToBuffDecompress. Fixed. 4442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 4443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Compression stuff ---*/ 4448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ2_bz__AssertH__fail ( int errcode ) 4453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf("BZ2_bz__AssertH__fail(%d) called, exiting\n", errcode); 4455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 4456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid bz_internal_error ( int errcode ) 4459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf("bz_internal_error called, exiting\n", errcode); 4461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 4462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint bz_config_ok ( void ) 4467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (sizeof(int) != 4) return 0; 4469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (sizeof(short) != 2) return 0; 4470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (sizeof(char) != 1) return 0; 4471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 1; 4472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid* default_bzalloc ( void* opaque, Int32 items, Int32 size ) 4478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* v = (void*) (*serviceFn)(2, items * size ); 4480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return v; 4481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid default_bzfree ( void* opaque, void* addr ) 4485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (addr != NULL) (*serviceFn)( 3, (HWord)addr ); 4487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid prepare_new_block ( EState* s ) 4493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 4495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock = 0; 4496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->numZ = 0; 4497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_pos = 0; 4498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_INITIALISE_CRC ( s->blockCRC ); 4499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 256; i++) s->inUse[i] = False; 4500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockNo++; 4501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid init_RL ( EState* s ) 4507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_in_ch = 256; 4509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_in_len = 0; 4510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool isempty_RL ( EState* s ) 4515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_in_ch < 256 && s->state_in_len > 0) 4517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return False; else 4518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 4519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzCompressInit) 4524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( bz_stream* strm, 4525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 4526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 4527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor ) 4528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 n; 4530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EState* s; 4531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!bz_config_ok()) return BZ_CONFIG_ERROR; 4533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL || 4535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown blockSize100k < 1 || blockSize100k > 9 || 4536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown workFactor < 0 || workFactor > 250) 4537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_PARAM_ERROR; 4538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (workFactor == 0) workFactor = 30; 4540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc; 4541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm->bzfree == NULL) strm->bzfree = default_bzfree; 4542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = BZALLOC( sizeof(EState) ); 4544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_MEM_ERROR; 4545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm = strm; 4546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->arr1 = NULL; 4548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->arr2 = NULL; 4549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ftab = NULL; 4550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = 100000 * blockSize100k; 4552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->arr1 = BZALLOC( n * sizeof(UInt32) ); 4553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->arr2 = BZALLOC( (n+BZ_N_OVERSHOOT) * sizeof(UInt32) ); 4554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ftab = BZALLOC( 65537 * sizeof(UInt32) ); 4555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->arr1 == NULL || s->arr2 == NULL || s->ftab == NULL) { 4557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->arr1 != NULL) BZFREE(s->arr1); 4558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->arr2 != NULL) BZFREE(s->arr2); 4559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->ftab != NULL) BZFREE(s->ftab); 4560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s != NULL) BZFREE(s); 4561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_MEM_ERROR; 4562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockNo = 0; 4565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_S_INPUT; 4566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mode = BZ_M_RUNNING; 4567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->combinedCRC = 0; 4568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->blockSize100k = blockSize100k; 4569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblockMAX = 100000 * blockSize100k - 19; 4570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->verbosity = verbosity; 4571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->workFactor = workFactor; 4572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block = (UChar*)s->arr2; 4574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mtfv = (UInt16*)s->arr1; 4575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->zbits = NULL; 4576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ptr = (UInt32*)s->arr1; 4577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->state = s; 4579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_in_lo32 = 0; 4580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_in_hi32 = 0; 4581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_out_lo32 = 0; 4582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_out_hi32 = 0; 4583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown init_RL ( s ); 4584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown prepare_new_block ( s ); 4585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 4586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid add_pair_to_block ( EState* s ) 4592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 i; 4594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar ch = (UChar)(s->state_in_ch); 4595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < s->state_in_len; i++) { 4596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC( s->blockCRC, ch ); 4597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->inUse[s->state_in_ch] = True; 4599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (s->state_in_len) { 4600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 1: 4601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 4603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 2: 4604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 4607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 3: 4608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 4612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown default: 4613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->inUse[s->state_in_len-4] = True; 4614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = (UChar)ch; s->nblock++; 4618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->block[s->nblock] = ((UChar)(s->state_in_len-4)); 4619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock++; 4620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 4621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid flush_RL ( EState* s ) 4628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_in_ch < 256) add_pair_to_block ( s ); 4630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown init_RL ( s ); 4631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ADD_CHAR_TO_BLOCK(zs,zchh0) \ 4636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 4637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 zchh = (UInt32)(zchh0); \ 4638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- fast track the common case --*/ \ 4639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zchh != zs->state_in_ch && \ 4640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_len == 1) { \ 4641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar ch = (UChar)(zs->state_in_ch); \ 4642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC( zs->blockCRC, ch ); \ 4643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->inUse[zs->state_in_ch] = True; \ 4644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->block[zs->nblock] = (UChar)ch; \ 4645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->nblock++; \ 4646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_ch = zchh; \ 4647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 4648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else \ 4649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- general, uncommon cases --*/ \ 4650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zchh != zs->state_in_ch || \ 4651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_len == 255) { \ 4652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (zs->state_in_ch < 256) \ 4653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown add_pair_to_block ( zs ); \ 4654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_ch = zchh; \ 4655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_len = 1; \ 4656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { \ 4657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zs->state_in_len++; \ 4658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } \ 4659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool copy_input_until_stop ( EState* s ) 4665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool progress_in = False; 4667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->mode == BZ_M_RUNNING) { 4669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- fast track the common case --*/ 4671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- block full? --*/ 4673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock >= s->nblockMAX) break; 4674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- no input? --*/ 4675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_in == 0) break; 4676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress_in = True; 4677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) ); 4678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_in++; 4679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_in--; 4680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_in_lo32++; 4681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++; 4682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 4685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- general, uncommon case --*/ 4687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- block full? --*/ 4689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock >= s->nblockMAX) break; 4690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- no input? --*/ 4691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_in == 0) break; 4692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- flush/finish end? --*/ 4693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->avail_in_expect == 0) break; 4694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress_in = True; 4695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ADD_CHAR_TO_BLOCK ( s, (UInt32)(*((UChar*)(s->strm->next_in))) ); 4696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_in++; 4697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_in--; 4698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_in_lo32++; 4699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_in_lo32 == 0) s->strm->total_in_hi32++; 4700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->avail_in_expect--; 4701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return progress_in; 4704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool copy_output_until_stop ( EState* s ) 4710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool progress_out = False; 4712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- no output space? --*/ 4716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_out == 0) break; 4717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*-- block done? --*/ 4719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_out_pos >= s->numZ) break; 4720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress_out = True; 4722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *(s->strm->next_out) = s->zbits[s->state_out_pos]; 4723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_pos++; 4724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_out--; 4725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_out++; 4726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_lo32++; 4727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; 4728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return progress_out; 4731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool handle_compress ( bz_stream* strm ) 4737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool progress_in = False; 4739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool progress_out = False; 4740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EState* s = strm->state; 4741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state == BZ_S_OUTPUT) { 4745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress_out |= copy_output_until_stop ( s ); 4746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_out_pos < s->numZ) break; 4747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->mode == BZ_M_FINISHING && 4748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->avail_in_expect == 0 && 4749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown isempty_RL(s)) break; 4750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown prepare_new_block ( s ); 4751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_S_INPUT; 4752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->mode == BZ_M_FLUSHING && 4753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->avail_in_expect == 0 && 4754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown isempty_RL(s)) break; 4755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state == BZ_S_INPUT) { 4758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress_in |= copy_input_until_stop ( s ); 4759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->mode != BZ_M_RUNNING && s->avail_in_expect == 0) { 4760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flush_RL ( s ); 4761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_compressBlock ( s, (Bool)(s->mode == BZ_M_FINISHING) ); 4762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_S_OUTPUT; 4763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 4765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock >= s->nblockMAX) { 4766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_compressBlock ( s, False ); 4767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_S_OUTPUT; 4768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 4770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_in == 0) { 4771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown break; 4772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return progress_in || progress_out; 4778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzCompress) ( bz_stream *strm, int action ) 4783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool progress; 4785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EState* s; 4786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL) return BZ_PARAM_ERROR; 4787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = strm->state; 4788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_PARAM_ERROR; 4789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm != strm) return BZ_PARAM_ERROR; 4790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown preswitch: 4792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (s->mode) { 4793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case BZ_M_IDLE: 4795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_SEQUENCE_ERROR; 4796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case BZ_M_RUNNING: 4798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (action == BZ_RUN) { 4799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress = handle_compress ( strm ); 4800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return progress ? BZ_RUN_OK : BZ_PARAM_ERROR; 4801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 4803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (action == BZ_FLUSH) { 4804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->avail_in_expect = strm->avail_in; 4805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mode = BZ_M_FLUSHING; 4806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown goto preswitch; 4807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 4809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (action == BZ_FINISH) { 4810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->avail_in_expect = strm->avail_in; 4811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mode = BZ_M_FINISHING; 4812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown goto preswitch; 4813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else 4815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_PARAM_ERROR; 4816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case BZ_M_FLUSHING: 4818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (action != BZ_FLUSH) return BZ_SEQUENCE_ERROR; 4819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->avail_in_expect != s->strm->avail_in) 4820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_SEQUENCE_ERROR; 4821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress = handle_compress ( strm ); 4822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->avail_in_expect > 0 || !isempty_RL(s) || 4823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_pos < s->numZ) return BZ_FLUSH_OK; 4824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mode = BZ_M_RUNNING; 4825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_RUN_OK; 4826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case BZ_M_FINISHING: 4828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (action != BZ_FINISH) return BZ_SEQUENCE_ERROR; 4829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->avail_in_expect != s->strm->avail_in) 4830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_SEQUENCE_ERROR; 4831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown progress = handle_compress ( strm ); 4832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!progress) return BZ_SEQUENCE_ERROR; 4833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->avail_in_expect > 0 || !isempty_RL(s) || 4834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_pos < s->numZ) return BZ_FINISH_OK; 4835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->mode = BZ_M_IDLE; 4836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_STREAM_END; 4837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; /*--not reached--*/ 4839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzCompressEnd) ( bz_stream *strm ) 4844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown EState* s; 4846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL) return BZ_PARAM_ERROR; 4847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = strm->state; 4848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_PARAM_ERROR; 4849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm != strm) return BZ_PARAM_ERROR; 4850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->arr1 != NULL) BZFREE(s->arr1); 4852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->arr2 != NULL) BZFREE(s->arr2); 4853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->ftab != NULL) BZFREE(s->ftab); 4854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFREE(strm->state); 4855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->state = NULL; 4857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 4859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Decompression stuff ---*/ 4864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzDecompressInit) 4868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( bz_stream* strm, 4869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 4870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small ) 4871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DState* s; 4873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!bz_config_ok()) return BZ_CONFIG_ERROR; 4875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL) return BZ_PARAM_ERROR; 4877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (small != 0 && small != 1) return BZ_PARAM_ERROR; 4878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (verbosity < 0 || verbosity > 4) return BZ_PARAM_ERROR; 4879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm->bzalloc == NULL) strm->bzalloc = default_bzalloc; 4881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm->bzfree == NULL) strm->bzfree = default_bzfree; 4882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = BZALLOC( sizeof(DState) ); 4884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_MEM_ERROR; 4885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm = strm; 4886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->state = s; 4887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_X_MAGIC_1; 4888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsLive = 0; 4889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->bsBuff = 0; 4890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->calculatedCombinedCRC = 0; 4891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_in_lo32 = 0; 4892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_in_hi32 = 0; 4893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_out_lo32 = 0; 4894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->total_out_hi32 = 0; 4895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->smallDecompress = (Bool)small; 4896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll4 = NULL; 4897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->ll16 = NULL; 4898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt = NULL; 4899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->currBlockNo = 0; 4900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->verbosity = verbosity; 4901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 4903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 4904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 4907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Return True iff data corruption is discovered. 4908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Returns False if there is no problem. 4909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 4910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 4911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool unRLE_obuf_to_output_FAST ( DState* s ) 4912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 4913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar k1; 4914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockRandomised) { 4916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* try to finish existing run */ 4919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_out == 0) return False; 4921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_out_len == 0) break; 4922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; 4923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); 4924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len--; 4925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_out++; 4926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_out--; 4927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_lo32++; 4928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; 4929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* can a new run be started? */ 4932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) return False; 4933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Only caused by corrupt data stream? */ 4935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used > s->save_nblock+1) 4936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 4937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 1; 4939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_ch = s->k0; 4940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; 4941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 4942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 4943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 4944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 2; 4946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; 4947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 4948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 4949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 4950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 3; 4952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; 4953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 4954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 4955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 4956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(k1); BZ_RAND_UPD_MASK; 4958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 4959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = ((Int32)k1) + 4; 4960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST(s->k0); BZ_RAND_UPD_MASK; 4961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->k0 ^= BZ_RAND_MASK; s->nblock_used++; 4962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 4965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* restore */ 4967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 c_calculatedBlockCRC = s->calculatedBlockCRC; 4968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar c_state_out_ch = s->state_out_ch; 4969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 c_state_out_len = s->state_out_len; 4970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 c_nblock_used = s->nblock_used; 4971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 c_k0 = s->k0; 4972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32* c_tt = s->tt; 4973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 c_tPos = s->tPos; 4974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* cs_next_out = s->strm->next_out; 4975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int cs_avail_out = s->strm->avail_out; 4976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* end restore */ 4977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UInt32 avail_out_INIT = cs_avail_out; 4979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 s_save_nblockPP = s->save_nblock+1; 4980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int total_out_lo32_old; 4981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 4984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* try to finish existing run */ 4985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_state_out_len > 0) { 4986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 4987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (cs_avail_out == 0) goto return_notr; 4988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_state_out_len == 1) break; 4989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *( (UChar*)(cs_next_out) ) = c_state_out_ch; 4990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch ); 4991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len--; 4992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cs_next_out++; 4993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cs_avail_out--; 4994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 4995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s_state_out_len_eq_one: 4996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 4997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (cs_avail_out == 0) { 4998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len = 1; goto return_notr; 4999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 5000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *( (UChar*)(cs_next_out) ) = c_state_out_ch; 5001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC ( c_calculatedBlockCRC, c_state_out_ch ); 5002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cs_next_out++; 5003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown cs_avail_out--; 5004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Only caused by corrupt data stream? */ 5007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_nblock_used > s_save_nblockPP) 5008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 5009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* can a new run be started? */ 5011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_nblock_used == s_save_nblockPP) { 5012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len = 0; goto return_notr; 5013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 5014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_ch = c_k0; 5015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST_C(k1); c_nblock_used++; 5016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != c_k0) { 5017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_k0 = k1; goto s_state_out_len_eq_one; 5018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 5019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_nblock_used == s_save_nblockPP) 5020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown goto s_state_out_len_eq_one; 5021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len = 2; 5023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST_C(k1); c_nblock_used++; 5024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_nblock_used == s_save_nblockPP) continue; 5025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != c_k0) { c_k0 = k1; continue; }; 5026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len = 3; 5028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST_C(k1); c_nblock_used++; 5029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c_nblock_used == s_save_nblockPP) continue; 5030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != c_k0) { c_k0 = k1; continue; }; 5031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST_C(k1); c_nblock_used++; 5033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c_state_out_len = ((Int32)k1) + 4; 5034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_FAST_C(c_k0); c_nblock_used++; 5035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return_notr: 5038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown total_out_lo32_old = s->strm->total_out_lo32; 5039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_lo32 += (avail_out_INIT - cs_avail_out); 5040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_out_lo32 < total_out_lo32_old) 5041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_hi32++; 5042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* save */ 5044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->calculatedBlockCRC = c_calculatedBlockCRC; 5045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_ch = c_state_out_ch; 5046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = c_state_out_len; 5047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->nblock_used = c_nblock_used; 5048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->k0 = c_k0; 5049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tt = c_tt; 5050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->tPos = c_tPos; 5051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_out = cs_next_out; 5052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_out = cs_avail_out; 5053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* end save */ 5054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return False; 5056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Return True iff data corruption is discovered. 5062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Returns False if there is no problem. 5063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 5064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 5065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBool unRLE_obuf_to_output_SMALL ( DState* s ) 5066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar k1; 5068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->blockRandomised) { 5070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* try to finish existing run */ 5073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_out == 0) return False; 5075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_out_len == 0) break; 5076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; 5077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); 5078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len--; 5079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_out++; 5080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_out--; 5081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_lo32++; 5082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; 5083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* can a new run be started? */ 5086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) return False; 5087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Only caused by corrupt data stream? */ 5089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used > s->save_nblock+1) 5090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 5091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 1; 5093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_ch = s->k0; 5094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; 5095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 5096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 2; 5100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; 5101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 5102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 3; 5106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; 5107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 5108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); BZ_RAND_UPD_MASK; 5112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown k1 ^= BZ_RAND_MASK; s->nblock_used++; 5113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = ((Int32)k1) + 4; 5114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(s->k0); BZ_RAND_UPD_MASK; 5115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->k0 ^= BZ_RAND_MASK; s->nblock_used++; 5116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* try to finish existing run */ 5122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->avail_out == 0) return False; 5124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state_out_len == 0) break; 5125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *( (UChar*)(s->strm->next_out) ) = s->state_out_ch; 5126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_UPDATE_CRC ( s->calculatedBlockCRC, s->state_out_ch ); 5127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len--; 5128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->next_out++; 5129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->avail_out--; 5130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->strm->total_out_lo32++; 5131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm->total_out_lo32 == 0) s->strm->total_out_hi32++; 5132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* can a new run be started? */ 5135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) return False; 5136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Only caused by corrupt data stream? */ 5138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used > s->save_nblock+1) 5139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return True; 5140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 1; 5142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_ch = s->k0; 5143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); s->nblock_used++; 5144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 2; 5148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); s->nblock_used++; 5149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = 3; 5153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); s->nblock_used++; 5154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1) continue; 5155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (k1 != s->k0) { s->k0 = k1; continue; }; 5156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(k1); s->nblock_used++; 5158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state_out_len = ((Int32)k1) + 4; 5159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_GET_SMALL(s->k0); s->nblock_used++; 5160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzDecompress) ( bz_stream *strm ) 5168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool corrupt; 5170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DState* s; 5171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL) return BZ_PARAM_ERROR; 5172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = strm->state; 5173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_PARAM_ERROR; 5174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm != strm) return BZ_PARAM_ERROR; 5175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state == BZ_X_IDLE) return BZ_SEQUENCE_ERROR; 5178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state == BZ_X_OUTPUT) { 5179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->smallDecompress) 5180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown corrupt = unRLE_obuf_to_output_SMALL ( s ); else 5181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown corrupt = unRLE_obuf_to_output_FAST ( s ); 5182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (corrupt) return BZ_DATA_ERROR; 5183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->nblock_used == s->save_nblock+1 && s->state_out_len == 0) { 5184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_FINALISE_CRC ( s->calculatedBlockCRC ); 5185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 5186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf2 ( " {0x%08x, 0x%08x}", s->storedBlockCRC, 5187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->calculatedBlockCRC ); 5188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 2) VPrintf0 ( "]" ); 5189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->calculatedBlockCRC != s->storedBlockCRC) 5190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_DATA_ERROR; 5191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->calculatedCombinedCRC 5192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown = (s->calculatedCombinedCRC << 1) | 5193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (s->calculatedCombinedCRC >> 31); 5194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->calculatedCombinedCRC ^= s->calculatedBlockCRC; 5195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->state = BZ_X_BLKHDR_1; 5196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 5198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state >= BZ_X_MAGIC_1) { 5201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 r = BZ2_decompress ( s ); 5202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r == BZ_STREAM_END) { 5203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->verbosity >= 3) 5204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VPrintf2 ( "\n combined CRCs: stored = 0x%08x, computed = 0x%08x", 5205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s->storedCombinedCRC, s->calculatedCombinedCRC ); 5206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->calculatedCombinedCRC != s->storedCombinedCRC) 5207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_DATA_ERROR; 5208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return r; 5209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->state != BZ_X_OUTPUT) return r; 5211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown AssertH ( 0, 6001 ); 5215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; /*NOTREACHED*/ 5217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzDecompressEnd) ( bz_stream *strm ) 5222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown DState* s; 5224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm == NULL) return BZ_PARAM_ERROR; 5225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown s = strm->state; 5226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s == NULL) return BZ_PARAM_ERROR; 5227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->strm != strm) return BZ_PARAM_ERROR; 5228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->tt != NULL) BZFREE(s->tt); 5230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->ll16 != NULL) BZFREE(s->ll16); 5231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (s->ll4 != NULL) BZFREE(s->ll4); 5232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFREE(strm->state); 5234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm->state = NULL; 5235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 5237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 5241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- File I/O stuff ---*/ 5243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define BZ_SETERR(eee) \ 5246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ \ 5247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzerror != NULL) *bzerror = eee; \ 5248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf != NULL) bzf->lastErr = eee; \ 5249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef 5252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown struct { 5253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE* handle; 5254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Char buf[BZ_MAX_UNUSED]; 5255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 bufN; 5256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool writing; 5257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream strm; 5258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 lastErr; 5259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool initialisedOk; 5260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile; 5262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------*/ 5265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic Bool myfeof ( FILE* f ) 5266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 c = fgetc ( f ); 5268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (c == EOF) return True; 5269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ungetc ( c, f ); 5270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return False; 5271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZFILE* BZ_API(BZ2_bzWriteOpen) 5276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE* f, 5278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 5279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 5280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor ) 5281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 ret; 5283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = NULL; 5284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (f == NULL || 5288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (blockSize100k < 1 || blockSize100k > 9) || 5289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (workFactor < 0 || workFactor > 250) || 5290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (verbosity < 0 || verbosity > 4)) 5291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return NULL; }; 5292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(f)) 5294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return NULL; }; 5295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf = malloc ( sizeof(bzFile) ); 5297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL) 5298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_MEM_ERROR); return NULL; }; 5299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->initialisedOk = False; 5302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->bufN = 0; 5303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->handle = f; 5304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->writing = True; 5305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.bzalloc = NULL; 5306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.bzfree = NULL; 5307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.opaque = NULL; 5308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (workFactor == 0) workFactor = 30; 5310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzCompressInit ( &(bzf->strm), blockSize100k, 5311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown verbosity, workFactor ); 5312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_OK) 5313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(ret); free(bzf); return NULL; }; 5314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_in = 0; 5316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->initialisedOk = True; 5317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzf; 5318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzWrite) 5324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 5326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 5327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len ) 5328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 n, n2, ret; 5330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = (bzFile*)b; 5331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL || buf == NULL || len < 0) 5334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return; }; 5335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!(bzf->writing)) 5336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; 5337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(bzf->handle)) 5338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return; }; 5339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (len == 0) 5341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return; }; 5342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_in = len; 5344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_in = buf; 5345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_out = BZ_MAX_UNUSED; 5348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_out = bzf->buf; 5349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzCompress ( &(bzf->strm), BZ_RUN ); 5350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_RUN_OK) 5351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(ret); return; }; 5352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->strm.avail_out < BZ_MAX_UNUSED) { 5354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = BZ_MAX_UNUSED - bzf->strm.avail_out; 5355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar), 5356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n, bzf->handle ); 5357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n != n2 || ferror(bzf->handle)) 5358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return; }; 5359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->strm.avail_in == 0) 5362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return; }; 5363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzWriteClose) 5369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 5371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int abandon, 5372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in, 5373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out ) 5374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzWriteClose64 ( bzerror, b, abandon, 5376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nbytes_in, NULL, nbytes_out, NULL ); 5377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzWriteClose64) 5381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 5383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int abandon, 5384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in_lo32, 5385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_in_hi32, 5386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out_lo32, 5387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* nbytes_out_hi32 ) 5388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 n, n2, ret; 5390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = (bzFile*)b; 5391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL) 5393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return; }; 5394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (!(bzf->writing)) 5395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; 5396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(bzf->handle)) 5397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return; }; 5398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_in_lo32 != NULL) *nbytes_in_lo32 = 0; 5400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_in_hi32 != NULL) *nbytes_in_hi32 = 0; 5401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_out_lo32 != NULL) *nbytes_out_lo32 = 0; 5402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_out_hi32 != NULL) *nbytes_out_hi32 = 0; 5403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ((!abandon) && bzf->lastErr == BZ_OK) { 5405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_out = BZ_MAX_UNUSED; 5407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_out = bzf->buf; 5408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzCompress ( &(bzf->strm), BZ_FINISH ); 5409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_FINISH_OK && ret != BZ_STREAM_END) 5410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(ret); return; }; 5411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->strm.avail_out < BZ_MAX_UNUSED) { 5413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = BZ_MAX_UNUSED - bzf->strm.avail_out; 5414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n2 = fwrite ( (void*)(bzf->buf), sizeof(UChar), 5415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n, bzf->handle ); 5416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (n != n2 || ferror(bzf->handle)) 5417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return; }; 5418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret == BZ_STREAM_END) break; 5421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ( !abandon && !ferror ( bzf->handle ) ) { 5425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fflush ( bzf->handle ); 5426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(bzf->handle)) 5427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return; }; 5428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_in_lo32 != NULL) 5431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *nbytes_in_lo32 = bzf->strm.total_in_lo32; 5432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_in_hi32 != NULL) 5433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *nbytes_in_hi32 = bzf->strm.total_in_hi32; 5434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_out_lo32 != NULL) 5435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *nbytes_out_lo32 = bzf->strm.total_out_lo32; 5436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nbytes_out_hi32 != NULL) 5437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *nbytes_out_hi32 = bzf->strm.total_out_hi32; 5438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzCompressEnd ( &(bzf->strm) ); 5441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown free ( bzf ); 5442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZFILE* BZ_API(BZ2_bzReadOpen) 5447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE* f, 5449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 5450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small, 5451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* unused, 5452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int nUnused ) 5453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = NULL; 5455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int ret; 5456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (f == NULL || 5460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (small != 0 && small != 1) || 5461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (verbosity < 0 || verbosity > 4) || 5462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (unused == NULL && nUnused != 0) || 5463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (unused != NULL && (nUnused < 0 || nUnused > BZ_MAX_UNUSED))) 5464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return NULL; }; 5465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(f)) 5467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return NULL; }; 5468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf = malloc ( sizeof(bzFile) ); 5470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL) 5471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_MEM_ERROR); return NULL; }; 5472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->initialisedOk = False; 5476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->handle = f; 5477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->bufN = 0; 5478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->writing = False; 5479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.bzalloc = NULL; 5480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.bzfree = NULL; 5481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.opaque = NULL; 5482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (nUnused > 0) { 5484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->buf[bzf->bufN] = *((UChar*)(unused)); bzf->bufN++; 5485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unused = ((void*)( 1 + ((UChar*)(unused)) )); 5486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nUnused--; 5487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzDecompressInit ( &(bzf->strm), verbosity, small ); 5490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_OK) 5491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(ret); free(bzf); return NULL; }; 5492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_in = bzf->bufN; 5494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_in = bzf->buf; 5495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->initialisedOk = True; 5497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzf; 5498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzReadClose) ( int *bzerror, BZFILE *b ) 5503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = (bzFile*)b; 5505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL) 5508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return; }; 5509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->writing) 5511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; 5512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->initialisedOk) 5514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (void)BZ2_bzDecompressEnd ( &(bzf->strm) ); 5515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown free ( bzf ); 5516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzRead) 5521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 5523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void* buf, 5524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int len ) 5525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Int32 n, ret; 5527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = (bzFile*)b; 5528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL || buf == NULL || len < 0) 5532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return 0; }; 5533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->writing) 5535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_SEQUENCE_ERROR); return 0; }; 5536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (len == 0) 5538ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return 0; }; 5539ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5540ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_out = len; 5541ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_out = buf; 5542ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5543ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (True) { 5544ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5545ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(bzf->handle)) 5546ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return 0; }; 5547ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5548ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->strm.avail_in == 0 && !myfeof(bzf->handle)) { 5549ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown n = fread ( bzf->buf, sizeof(UChar), 5550ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_MAX_UNUSED, bzf->handle ); 5551ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ferror(bzf->handle)) 5552ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_IO_ERROR); return 0; }; 5553ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->bufN = n; 5554ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_in = bzf->bufN; 5555ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.next_in = bzf->buf; 5556ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5557ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5558ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzDecompress ( &(bzf->strm) ); 5559ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5560ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_OK && ret != BZ_STREAM_END) 5561ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(ret); return 0; }; 5562ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5563ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret == BZ_OK && myfeof(bzf->handle) && 5564ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzf->strm.avail_in == 0 && bzf->strm.avail_out > 0) 5565ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_UNEXPECTED_EOF); return 0; }; 5566ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5567ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret == BZ_STREAM_END) 5568ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_STREAM_END); 5569ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return len - bzf->strm.avail_out; }; 5570ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->strm.avail_out == 0) 5571ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_OK); return len; }; 5572ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5573ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5574ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5575ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; /*not reached*/ 5576ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5577ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5578ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5579ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5580ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzReadGetUnused) 5581ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int* bzerror, 5582ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE* b, 5583ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown void** unused, 5584ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int* nUnused ) 5585ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5586ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzFile* bzf = (bzFile*)b; 5587ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf == NULL) 5588ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return; }; 5589ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzf->lastErr != BZ_STREAM_END) 5590ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_SEQUENCE_ERROR); return; }; 5591ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (unused == NULL || nUnused == NULL) 5592ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { BZ_SETERR(BZ_PARAM_ERROR); return; }; 5593ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5594ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ_SETERR(BZ_OK); 5595ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *nUnused = bzf->strm.avail_in; 5596ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *unused = bzf->strm.next_in; 5597ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5598ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 5599ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5600ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5601ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5602ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Misc convenience stuff ---*/ 5603ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5604ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5605ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5606ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzBuffToBuffCompress) 5607ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( char* dest, 5608ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* destLen, 5609ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* source, 5610ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int sourceLen, 5611ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k, 5612ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity, 5613ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor ) 5614ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5615ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream strm; 5616ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int ret; 5617ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5618ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (dest == NULL || destLen == NULL || 5619ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown source == NULL || 5620ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown blockSize100k < 1 || blockSize100k > 9 || 5621ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown verbosity < 0 || verbosity > 4 || 5622ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown workFactor < 0 || workFactor > 250) 5623ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_PARAM_ERROR; 5624ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5625ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (workFactor == 0) workFactor = 30; 5626ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.bzalloc = NULL; 5627ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.bzfree = NULL; 5628ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.opaque = NULL; 5629ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzCompressInit ( &strm, blockSize100k, 5630ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown verbosity, workFactor ); 5631ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_OK) return ret; 5632ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5633ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.next_in = source; 5634ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.next_out = dest; 5635ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.avail_in = sourceLen; 5636ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.avail_out = *destLen; 5637ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5638ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzCompress ( &strm, BZ_FINISH ); 5639ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret == BZ_FINISH_OK) goto output_overflow; 5640ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_STREAM_END) goto errhandler; 5641ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5642ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* normal termination */ 5643ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *destLen -= strm.avail_out; 5644ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzCompressEnd ( &strm ); 5645ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 5646ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5647ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown output_overflow: 5648ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzCompressEnd ( &strm ); 5649ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OUTBUFF_FULL; 5650ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5651ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown errhandler: 5652ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzCompressEnd ( &strm ); 5653ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 5654ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5655ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5656ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5657ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5658ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzBuffToBuffDecompress) 5659ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( char* dest, 5660ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int* destLen, 5661ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char* source, 5662ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned int sourceLen, 5663ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int small, 5664ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity ) 5665ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5666ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bz_stream strm; 5667ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int ret; 5668ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5669ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (dest == NULL || destLen == NULL || 5670ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown source == NULL || 5671ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (small != 0 && small != 1) || 5672ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown verbosity < 0 || verbosity > 4) 5673ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_PARAM_ERROR; 5674ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5675ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.bzalloc = NULL; 5676ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.bzfree = NULL; 5677ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.opaque = NULL; 5678ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzDecompressInit ( &strm, verbosity, small ); 5679ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_OK) return ret; 5680ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5681ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.next_in = source; 5682ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.next_out = dest; 5683ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.avail_in = sourceLen; 5684ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strm.avail_out = *destLen; 5685ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5686ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ret = BZ2_bzDecompress ( &strm ); 5687ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret == BZ_OK) goto output_overflow_or_eof; 5688ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (ret != BZ_STREAM_END) goto errhandler; 5689ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5690ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* normal termination */ 5691ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *destLen -= strm.avail_out; 5692ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzDecompressEnd ( &strm ); 5693ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OK; 5694ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5695ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown output_overflow_or_eof: 5696ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (strm.avail_out > 0) { 5697ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzDecompressEnd ( &strm ); 5698ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_UNEXPECTED_EOF; 5699ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5700ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzDecompressEnd ( &strm ); 5701ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_OUTBUFF_FULL; 5702ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }; 5703ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5704ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown errhandler: 5705ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzDecompressEnd ( &strm ); 5706ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return ret; 5707ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5708ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5709ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5710ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5711ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 5712ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Code contributed by Yoshioka Tsuneo 5713ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp), 5714ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown to support better zlib compatibility. 5715ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This code is not _officially_ part of libbzip2 (yet); 5716ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown I haven't tested it, documented it, or considered the 5717ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown threading-safeness of it. 5718ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown If this code breaks, please contact both Yoshioka and me. 5719ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 5720ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5721ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5722ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5723ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 5724ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return version like "0.9.0c". 5725ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 5726ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownconst char * BZ_API(BZ2_bzlibVersion)(void) 5727ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5728ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return BZ_VERSION; 5729ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5730ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5731ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5732ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef BZ_NO_STDIO 5733ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5734ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5735ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if defined(_WIN32) || defined(OS2) || defined(MSDOS) 5736ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# include <fcntl.h> 5737ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# include <io.h> 5738ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define SET_BINARY_MODE(file) setmode(fileno(file),O_BINARY) 5739ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 5740ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define SET_BINARY_MODE(file) 5741ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 5742ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic 5743ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZFILE * bzopen_or_bzdopen 5744ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( const char *path, /* no use when bzdopen */ 5745ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int fd, /* no use when bzdopen */ 5746ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *mode, 5747ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int open_mode) /* bzopen: 0, bzdopen:1 */ 5748ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5749ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bzerr; 5750ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char unused[BZ_MAX_UNUSED]; 5751ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int blockSize100k = 9; 5752ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int writing = 0; 5753ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char mode2[10] = ""; 5754ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE *fp = NULL; 5755ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZFILE *bzfp = NULL; 5756ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int verbosity = 0; 5757ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int workFactor = 30; 5758ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int smallMode = 0; 5759ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int nUnused = 0; 5760ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5761ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (mode == NULL) return NULL; 5762ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while (*mode) { 5763ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (*mode) { 5764ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'r': 5765ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown writing = 0; break; 5766ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 'w': 5767ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown writing = 1; break; 5768ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 's': 5769ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown smallMode = 1; break; 5770ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown default: 5771ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (isdigit((int)(*mode))) { 5772ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown blockSize100k = *mode-BZ_HDR_0; 5773ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5774ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5775ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown mode++; 5776ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5777ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strcat(mode2, writing ? "w" : "r" ); 5778ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown strcat(mode2,"b"); /* binary mode */ 5779ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5780ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (open_mode==0) { 5781ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (path==NULL || strcmp(path,"")==0) { 5782ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fp = (writing ? stdout : stdin); 5783ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SET_BINARY_MODE(fp); 5784ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5785ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fp = fopen(path,mode2); 5786ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5787ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5788ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef BZ_STRICT_ANSI 5789ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fp = NULL; 5790ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 5791ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fp = fdopen(fd,mode2); 5792ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 5793ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5794ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (fp == NULL) return NULL; 5795ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5796ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (writing) { 5797ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Guard against total chaos and anarchy -- JRS */ 5798ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (blockSize100k < 1) blockSize100k = 1; 5799ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (blockSize100k > 9) blockSize100k = 9; 5800ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzfp = BZ2_bzWriteOpen(&bzerr,fp,blockSize100k, 5801ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown verbosity,workFactor); 5802ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5803ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown bzfp = BZ2_bzReadOpen(&bzerr,fp,verbosity,smallMode, 5804ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unused,nUnused); 5805ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5806ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzfp == NULL) { 5807ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (fp != stdin && fp != stdout) fclose(fp); 5808ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return NULL; 5809ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5810ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzfp; 5811ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5812ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5813ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5814ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5815ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 5816ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown open file for read or write. 5817ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ex) bzopen("file","w9") 5818ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case path="" or NULL => use stdin or stdout. 5819ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 5820ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZFILE * BZ_API(BZ2_bzopen) 5821ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( const char *path, 5822ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *mode ) 5823ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5824ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzopen_or_bzdopen(path,-1,mode,/*bzopen*/0); 5825ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5826ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5827ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5828ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5829ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBZFILE * BZ_API(BZ2_bzdopen) 5830ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ( int fd, 5831ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown const char *mode ) 5832ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5833ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzopen_or_bzdopen(NULL,fd,mode,/*bzdopen*/1); 5834ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5835ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5836ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5837ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5838ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzread) (BZFILE* b, void* buf, int len ) 5839ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5840ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bzerr, nread; 5841ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (((bzFile*)b)->lastErr == BZ_STREAM_END) return 0; 5842ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nread = BZ2_bzRead(&bzerr,b,buf,len); 5843ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (bzerr == BZ_OK || bzerr == BZ_STREAM_END) { 5844ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return nread; 5845ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 5846ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return -1; 5847ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5848ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5849ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5850ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5851ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5852ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzwrite) (BZFILE* b, void* buf, int len ) 5853ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5854ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bzerr; 5855ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5856ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzWrite(&bzerr,b,buf,len); 5857ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if(bzerr == BZ_OK){ 5858ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return len; 5859ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }else{ 5860ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return -1; 5861ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5862ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5863ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5864ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5865ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5866ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint BZ_API(BZ2_bzflush) (BZFILE *b) 5867ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5868ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* do nothing now... */ 5869ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 5870ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5871ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5872ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5873ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5874ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid BZ_API(BZ2_bzclose) (BZFILE* b) 5875ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5876ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bzerr; 5877ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown FILE *fp = ((bzFile *)b)->handle; 5878ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5879ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (b==NULL) {return;} 5880ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if(((bzFile*)b)->writing){ 5881ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzWriteClose(&bzerr,b,0,NULL,NULL); 5882ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if(bzerr != BZ_OK){ 5883ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzWriteClose(NULL,b,1,NULL,NULL); 5884ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5885ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown }else{ 5886ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown BZ2_bzReadClose(&bzerr,b); 5887ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5888ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if(fp!=stdin && fp!=stdout){ 5889ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown fclose(fp); 5890ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 5891ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5892ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5893ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5894ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*---------------------------------------------------*/ 5895ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-- 5896ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return last error code 5897ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown--*/ 5898ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic char *bzerrorstrings[] = { 5899ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "OK" 5900ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"SEQUENCE_ERROR" 5901ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"PARAM_ERROR" 5902ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"MEM_ERROR" 5903ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR" 5904ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR_MAGIC" 5905ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"IO_ERROR" 5906ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"UNEXPECTED_EOF" 5907ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"OUTBUFF_FULL" 5908ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"CONFIG_ERROR" 5909ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5910ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5911ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5912ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5913ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5914ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5915ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 5916ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5917ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5918ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownconst char * BZ_API(BZ2_bzerror) (BZFILE *b, int *errnum) 5919ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5920ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int err = ((bzFile *)b)->lastErr; 5921ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5922ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if(err>0) err = 0; 5923ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *errnum = err; 5924ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return bzerrorstrings[err*-1]; 5925ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5926ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 5927ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5928ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5929ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 5930ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end bzlib.c ---*/ 5931ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-------------------------------------------------------------*/ 5932ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5933ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5934ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 5935ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown///////////////////////////////////////////////////////////////////// 5936ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5937ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5938ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* A test program written to test robustness to decompression of 5939ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown corrupted data. Usage is 5940ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unzcrash filename 5941ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and the program will read the specified file, compress it (in memory), 5942ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown and then repeatedly decompress it, each time with a different bit of 5943ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown the compressed data inverted, so as to test all possible one-bit errors. 5944ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This should not cause any invalid memory accesses. If it does, 5945ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown I want to know about it! 5946ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5947ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown p.s. As you can see from the above description, the process is 5948ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown incredibly slow. A file of size eg 5KB will cause it to run for 5949ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown many hours. 5950ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 5951ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5952ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown//#include <stdio.h> 5953ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown//#include <assert.h> 5954ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown//#include "bzlib.h" 5955ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5956ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define M_BLOCK 1000000 5957ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5958ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5959ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define M_BLOCK_OUT (M_BLOCK + 1000000) 5960ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char inbuf[M_BLOCK]; 5961ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char outbuf[M_BLOCK_OUT]; 5962ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown char zbuf[M_BLOCK + 600 + (M_BLOCK / 100)]; 5963ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5964ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint nIn; 5965ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownunsigned int nOut; 5966ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownunsigned int nZ; 5967ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5968ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if 0 5969ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic char *bzerrorstrings[] = { 5970ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "OK" 5971ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"SEQUENCE_ERROR" 5972ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"PARAM_ERROR" 5973ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"MEM_ERROR" 5974ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR" 5975ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR_MAGIC" 5976ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"IO_ERROR" 5977ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"UNEXPECTED_EOF" 5978ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"OUTBUFF_FULL" 5979ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5980ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5981ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5982ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5983ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5984ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 5985ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 5986ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 5987ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5988ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid flip_bit ( int bit ) 5989ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 5990ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int byteno = bit / 8; 5991ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bitno = bit % 8; 5992ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown UChar mask = 1 << bitno; 5993ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown //fprintf ( stderr, "(byte %d bit %d mask %d)", 5994ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown // byteno, bitno, (int)mask ); 5995ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zbuf[byteno] ^= mask; 5996ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 5997ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5998ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid set_inbuf ( void ) 5999ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 6000ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown inbuf[0] = 0; 6001ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "At her sixtieth birthday party, Margaret Thatcher "); 6002ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "blew on the cake to light the candles.\n"); 6003ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "This program, bzip2, the associated library libbzip2, and all\n"); 6004ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "documentation, are copyright (C) 1996-2004 Julian R Seward. All\n"); 6005ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "rights reserved.\n"); 6006ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6007ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Redistribution and use in source and binary forms, with or without\n"); 6008ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "modification, are permitted provided that the following conditions\n"); 6009ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "are met:\n"); 6010ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6011ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "1. Redistributions of source code must retain the above copyright\n"); 6012ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " notice, this list of conditions and the following disclaimer.\n"); 6013ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6014ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "2. The origin of this software must not be misrepresented; you must\n"); 6015ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " not claim that you wrote the original software. If you use this\n"); 6016ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " software in a product, an acknowledgment in the product\n"); 6017ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " documentation would be appreciated but is not required.\n"); 6018ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6019ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "3. Altered source versions must be plainly marked as such, and must\n"); 6020ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " not be misrepresented as being the original software.\n"); 6021ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6022ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "4. The name of the author may not be used to endorse or promote\n"); 6023ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " products derived from this software without specific prior written\n"); 6024ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " permission.\n"); 6025ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6026ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS\n"); 6027ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"); 6028ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n"); 6029ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY\n"); 6030ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\n"); 6031ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE\n"); 6032ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\n"); 6033ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n"); 6034ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING\n"); 6035ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\n"); 6036ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"); 6037ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6038ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6039ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6040ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6041ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6042ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6043ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6044ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6045ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6046ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6047ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6048ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6049ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6050ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6051ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6052ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6053ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6054ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6055ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6056ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6057ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6058ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6059ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6060ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6061ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6062ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6063ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6064ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6065ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6066ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6067ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6068ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6069ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6070ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6071ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6072ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6073ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6074ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6075ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6076ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6077ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6078ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "ababababababababababababababababababababababababababababababab"); 6079ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " GNU GENERAL PUBLIC LICENSE\n"); 6080ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Version 2, June 1991\n"); 6081ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6082ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n"); 6083ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"); 6084ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Everyone is permitted to copy and distribute verbatim copies\n"); 6085ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " of this license document, but changing it is not allowed.\n"); 6086ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6087ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Preamble\n"); 6088ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6089ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " The licenses for most software are designed to take away your\n"); 6090ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "freedom to share and change it. By contrast, the GNU General Public\n"); 6091ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "License is intended to guarantee your freedom to share and change free\n"); 6092ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "software--to make sure the software is free for all its users. This\n"); 6093ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "General Public License applies to most of the Free Software\n"); 6094ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Foundation's software and to any other program whose authors commit to\n"); 6095ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "using it. (Some other Free Software Foundation software is covered by\n"); 6096ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the GNU Library General Public License instead.) You can apply it to\n"); 6097ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "your programs, too.\n"); 6098ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6099ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " When we speak of free software, we are referring to freedom, not\n"); 6100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "price. Our General Public Licenses are designed to make sure that you\n"); 6101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "have the freedom to distribute copies of free software (and charge for\n"); 6102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "this service if you wish), that you receive source code or can get it\n"); 6103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "if you want it, that you can change the software or use pieces of it\n"); 6104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "in new free programs; and that you know you can do these things.\n"); 6105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " To protect your rights, we need to make restrictions that forbid\n"); 6107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "anyone to deny you these rights or to ask you to surrender the rights.\n"); 6108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "These restrictions translate to certain responsibilities for you if you\n"); 6109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute copies of the software, or if you modify it.\n"); 6110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " For example, if you distribute copies of such a program, whether\n"); 6112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "gratis or for a fee, you must give the recipients all the rights that\n"); 6113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "you have. You must make sure that they, too, receive or can get the\n"); 6114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "source code. And you must show them these terms so they know their\n"); 6115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "rights.\n"); 6116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " We protect your rights with two steps: (1) copyright the software, and\n"); 6118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "(2) offer you this license which gives you legal permission to copy,\n"); 6119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute and/or modify the software.\n"); 6120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Also, for each author's protection and ours, we want to make certain\n"); 6122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "that everyone understands that there is no warranty for this free\n"); 6123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "software. If the software is modified by someone else and passed on, we\n"); 6124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "want its recipients to know that what they have is not the original, so\n"); 6125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "that any problems introduced by others will not reflect on the original\n"); 6126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "authors' reputations.\n"); 6127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Finally, any free program is threatened constantly by software\n"); 6129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "patents. We wish to avoid the danger that redistributors of a free\n"); 6130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "program will individually obtain patent licenses, in effect making the\n"); 6131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "program proprietary. To prevent this, we have made it clear that any\n"); 6132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "patent must be licensed for everyone's free use or not licensed at all.\n"); 6133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " The precise terms and conditions for copying, distribution and\n"); 6135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "modification follow.\n"); 6136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " GNU GENERAL PUBLIC LICENSE\n"); 6138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\n"); 6139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 0. This License applies to any program or other work which contains\n"); 6141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "a notice placed by the copyright holder saying it may be distributed\n"); 6142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "under the terms of this General Public License. The Program, below,\n"); 6143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "refers to any such program or work, and a work based on the Program\n"); 6144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "means either the Program or any derivative work under copyright law:\n"); 6145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "that is to say, a work containing the Program or a portion of it,\n"); 6146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "either verbatim or with modifications and/or translated into another\n"); 6147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "language. (Hereinafter, translation is included without limitation in\n"); 6148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the term modification.) Each licensee is addressed as you.\n"); 6149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Activities other than copying, distribution and modification are not\n"); 6151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "covered by this License; they are outside its scope. The act of\n"); 6152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "running the Program is not restricted, and the output from the Program\n"); 6153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "is covered only if its contents constitute a work based on the\n"); 6154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Program (independent of having been made by running the Program).\n"); 6155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Whether that is true depends on what the Program does.\n"); 6156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 1. You may copy and distribute verbatim copies of the Program's\n"); 6158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "source code as you receive it, in any medium, provided that you\n"); 6159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "conspicuously and appropriately publish on each copy an appropriate\n"); 6160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "copyright notice and disclaimer of warranty; keep intact all the\n"); 6161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "notices that refer to this License and to the absence of any warranty;\n"); 6162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "and give any other recipients of the Program a copy of this License\n"); 6163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "along with the Program.\n"); 6164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "You may charge a fee for the physical act of transferring a copy, and\n"); 6166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "you may at your option offer warranty protection in exchange for a fee.\n"); 6167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 2. You may modify your copy or copies of the Program or any portion\n"); 6169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "of it, thus forming a work based on the Program, and copy and\n"); 6170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute such modifications or work under the terms of Section 1\n"); 6171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "above, provided that you also meet all of these conditions:\n"); 6172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " a) You must cause the modified files to carry prominent notices\n"); 6174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " stating that you changed the files and the date of any change.\n"); 6175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " b) You must cause any work that you distribute or publish, that in\n"); 6177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " whole or in part contains or is derived from the Program or any\n"); 6178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " part thereof, to be licensed as a whole at no charge to all third\n"); 6179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " parties under the terms of this License.\n"); 6180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " c) If the modified program normally reads commands interactively\n"); 6182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " when run, you must cause it, when started running for such\n"); 6183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " interactive use in the most ordinary way, to print or display an\n"); 6184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " announcement including an appropriate copyright notice and a\n"); 6185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " notice that there is no warranty (or else, saying that you provide\n"); 6186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " a warranty) and that users may redistribute the program under\n"); 6187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " these conditions, and telling the user how to view a copy of this\n"); 6188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " License. (Exception: if the Program itself is interactive but\n"); 6189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " does not normally print such an announcement, your work based on\n"); 6190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " the Program is not required to print an announcement.)\n"); 6191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "These requirements apply to the modified work as a whole. If\n"); 6193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "identifiable sections of that work are not derived from the Program,\n"); 6194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "and can be reasonably considered independent and separate works in\n"); 6195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "themselves, then this License, and its terms, do not apply to those\n"); 6196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "sections when you distribute them as separate works. But when you\n"); 6197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute the same sections as part of a whole which is a work based\n"); 6198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "on the Program, the distribution of the whole must be on the terms of\n"); 6199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "this License, whose permissions for other licensees extend to the\n"); 6200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "entire whole, and thus to each and every part regardless of who wrote it.\n"); 6201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Thus, it is not the intent of this section to claim rights or contest\n"); 6203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "your rights to work written entirely by you; rather, the intent is to\n"); 6204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "exercise the right to control the distribution of derivative or\n"); 6205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "collective works based on the Program.\n"); 6206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "In addition, mere aggregation of another work not based on the Program\n"); 6208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "with the Program (or with a work based on the Program) on a volume of\n"); 6209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "a storage or distribution medium does not bring the other work under\n"); 6210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the scope of this License.\n"); 6211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 3. You may copy and distribute the Program (or a work based on it,\n"); 6213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "under Section 2) in object code or executable form under the terms of\n"); 6214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Sections 1 and 2 above provided that you also do one of the following:\n"); 6215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " a) Accompany it with the complete corresponding machine-readable\n"); 6217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " source code, which must be distributed under the terms of Sections\n"); 6218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 1 and 2 above on a medium customarily used for software interchange; or,\n"); 6219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " b) Accompany it with a written offer, valid for at least three\n"); 6221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " years, to give any third party, for a charge no more than your\n"); 6222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " cost of physically performing source distribution, a complete\n"); 6223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " machine-readable copy of the corresponding source code, to be\n"); 6224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " distributed under the terms of Sections 1 and 2 above on a medium\n"); 6225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " customarily used for software interchange; or,\n"); 6226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " c) Accompany it with the information you received as to the offer\n"); 6228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " to distribute corresponding source code. (This alternative is\n"); 6229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " allowed only for noncommercial distribution and only if you\n"); 6230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " received the program in object code or executable form with such\n"); 6231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " an offer, in accord with Subsection b above.)\n"); 6232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "The source code for a work means the preferred form of the work for\n"); 6234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "making modifications to it. For an executable work, complete source\n"); 6235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "code means all the source code for all modules it contains, plus any\n"); 6236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "associated interface definition files, plus the scripts used to\n"); 6237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "control compilation and installation of the executable. However, as a\n"); 6238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "special exception, the source code distributed need not include\n"); 6239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "anything that is normally distributed (in either source or binary\n"); 6240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "form) with the major components (compiler, kernel, and so on) of the\n"); 6241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "operating system on which the executable runs, unless that component\n"); 6242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "itself accompanies the executable.\n"); 6243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "If distribution of executable or object code is made by offering\n"); 6245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "access to copy from a designated place, then offering equivalent\n"); 6246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "access to copy the source code from the same place counts as\n"); 6247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribution of the source code, even though third parties are not\n"); 6248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "compelled to copy the source along with the object code.\n"); 6249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 4. You may not copy, modify, sublicense, or distribute the Program\n"); 6251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "except as expressly provided under this License. Any attempt\n"); 6252ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "otherwise to copy, modify, sublicense or distribute the Program is\n"); 6253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "void, and will automatically terminate your rights under this License.\n"); 6254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "However, parties who have received copies, or rights, from you under\n"); 6255ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "this License will not have their licenses terminated so long as such\n"); 6256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "parties remain in full compliance.\n"); 6257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 5. You are not required to accept this License, since you have not\n"); 6259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "signed it. However, nothing else grants you permission to modify or\n"); 6260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute the Program or its derivative works. These actions are\n"); 6261ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "prohibited by law if you do not accept this License. Therefore, by\n"); 6262ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "modifying or distributing the Program (or any work based on the\n"); 6263ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Program), you indicate your acceptance of this License to do so, and\n"); 6264ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "all its terms and conditions for copying, distributing or modifying\n"); 6265ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the Program or works based on it.\n"); 6266ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6267ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 6. Each time you redistribute the Program (or any work based on the\n"); 6268ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Program), the recipient automatically receives a license from the\n"); 6269ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "original licensor to copy, distribute or modify the Program subject to\n"); 6270ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "these terms and conditions. You may not impose any further\n"); 6271ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "restrictions on the recipients' exercise of the rights granted herein.\n"); 6272ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "You are not responsible for enforcing compliance by third parties to\n"); 6273ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "this License.\n"); 6274ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6275ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 7. If, as a consequence of a court judgment or allegation of patent\n"); 6276ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "infringement or for any other reason (not limited to patent issues),\n"); 6277ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "conditions are imposed on you (whether by court order, agreement or\n"); 6278ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "otherwise) that contradict the conditions of this License, they do not\n"); 6279ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "excuse you from the conditions of this License. If you cannot\n"); 6280ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "distribute so as to satisfy simultaneously your obligations under this\n"); 6281ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "License and any other pertinent obligations, then as a consequence you\n"); 6282ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "may not distribute the Program at all. For example, if a patent\n"); 6283ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "license would not permit royalty-free redistribution of the Program by\n"); 6284ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "all those who receive copies directly or indirectly through you, then\n"); 6285ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the only way you could satisfy both it and this License would be to\n"); 6286ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "refrain entirely from distribution of the Program.\n"); 6287ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6288ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "If any portion of this section is held invalid or unenforceable under\n"); 6289ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "any particular circumstance, the balance of the section is intended to\n"); 6290ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "apply and the section as a whole is intended to apply in other\n"); 6291ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "circumstances.\n"); 6292ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6293ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "It is not the purpose of this section to induce you to infringe any\n"); 6294ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "patents or other property right claims or to contest validity of any\n"); 6295ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "such claims; this section has the sole purpose of protecting the\n"); 6296ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "integrity of the free software distribution system, which is\n"); 6297ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "implemented by public license practices. Many people have made\n"); 6298ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "generous contributions to the wide range of software distributed\n"); 6299ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "through that system in reliance on consistent application of that\n"); 6300ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "system; it is up to the author/donor to decide if he or she is willing\n"); 6301ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "to distribute software through any other system and a licensee cannot\n"); 6302ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "impose that choice.\n"); 6303ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6304ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "This section is intended to make thoroughly clear what is believed to\n"); 6305ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "be a consequence of the rest of this License.\n"); 6306ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6307ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 8. If the distribution and/or use of the Program is restricted in\n"); 6308ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "certain countries either by patents or by copyrighted interfaces, the\n"); 6309ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "original copyright holder who places the Program under this License\n"); 6310ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "may add an explicit geographical distribution limitation excluding\n"); 6311ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "those countries, so that distribution is permitted only in or among\n"); 6312ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "countries not thus excluded. In such case, this License incorporates\n"); 6313ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the limitation as if written in the body of this License.\n"); 6314ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6315ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 9. The Free Software Foundation may publish revised and/or new versions\n"); 6316ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "of the General Public License from time to time. Such new versions will\n"); 6317ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "be similar in spirit to the present version, but may differ in detail to\n"); 6318ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "address new problems or concerns.\n"); 6319ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6320ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Each version is given a distinguishing version number. If the Program\n"); 6321ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "specifies a version number of this License which applies to it and any\n"); 6322ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "later version, you have the option of following the terms and conditions\n"); 6323ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "either of that version or of any later version published by the Free\n"); 6324ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Software Foundation. If the Program does not specify a version number of\n"); 6325ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "this License, you may choose any version ever published by the Free Software\n"); 6326ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Foundation.\n"); 6327ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6328ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 10. If you wish to incorporate parts of the Program into other free\n"); 6329ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "programs whose distribution conditions are different, write to the author\n"); 6330ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "to ask for permission. For software which is copyrighted by the Free\n"); 6331ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Software Foundation, write to the Free Software Foundation; we sometimes\n"); 6332ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "make exceptions for this. Our decision will be guided by the two goals\n"); 6333ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "of preserving the free status of all derivatives of our free software and\n"); 6334ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "of promoting the sharing and reuse of software generally.\n"); 6335ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6336ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " NO WARRANTY\n"); 6337ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6338ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\n"); 6339ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN\n"); 6340ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES\n"); 6341ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "PROVIDE THE PROGRAM AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED\n"); 6342ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\n"); 6343ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS\n"); 6344ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE\n"); 6345ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,\n"); 6346ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "REPAIR OR CORRECTION.\n"); 6347ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6348ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\n"); 6349ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR\n"); 6350ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,\n"); 6351ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING\n"); 6352ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED\n"); 6353ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY\n"); 6354ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER\n"); 6355ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE\n"); 6356ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "POSSIBILITY OF SUCH DAMAGES.\n"); 6357ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6358ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " END OF TERMS AND CONDITIONS\n"); 6359ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6360ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " How to Apply These Terms to Your New Programs\n"); 6361ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6362ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " If you develop a new program, and you want it to be of the greatest\n"); 6363ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "possible use to the public, the best way to achieve this is to make it\n"); 6364ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "free software which everyone can redistribute and change under these terms.\n"); 6365ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6366ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " To do so, attach the following notices to the program. It is safest\n"); 6367ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "to attach them to the start of each source file to most effectively\n"); 6368ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "convey the exclusion of warranty; and each file should have at least\n"); 6369ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "the copyright line and a pointer to where the full notice is found.\n"); 6370ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6371ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " <one line to give the program's name and a brief idea of what it does.>\n"); 6372ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Copyright (C) <year> <name of author>\n"); 6373ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6374ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " This program is free software; you can redistribute it and/or modify\n"); 6375ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " it under the terms of the GNU General Public License as published by\n"); 6376ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " the Free Software Foundation; either version 2 of the License, or\n"); 6377ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " (at your option) any later version.\n"); 6378ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6379ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " This program is distributed in the hope that it will be useful,\n"); 6380ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " but WITHOUT ANY WARRANTY; without even the implied warranty of\n"); 6381ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"); 6382ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " GNU General Public License for more details.\n"); 6383ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6384ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " You should have received a copy of the GNU General Public License\n"); 6385ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " along with this program; if not, write to the Free Software\n"); 6386ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"); 6387ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6388ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6389ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Also add information on how to contact you by electronic and paper mail.\n"); 6390ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6391ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "If the program is interactive, make it output a short notice like this\n"); 6392ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "when it starts in an interactive mode:\n"); 6393ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6394ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Gnomovision version 69, Copyright (C) year name of author\n"); 6395ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.\n"); 6396ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " This is free software, and you are welcome to redistribute it\n"); 6397ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " under certain conditions; type `show c' for details.\n"); 6398ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6399ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "The hypothetical commands `show w' and `show c' should show the appropriate\n"); 6400ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "parts of the General Public License. Of course, the commands you use may\n"); 6401ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "be called something other than `show w' and `show c'; they could even be\n"); 6402ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "mouse-clicks or menu items--whatever suits your program.\n"); 6403ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6404ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "You should also get your employer (if you work as a programmer) or your\n"); 6405ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "school, if any, to sign a copyright disclaimer for the program, if\n"); 6406ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "necessary. Here is a sample; alter the names:\n"); 6407ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6408ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Yoyodyne, Inc., hereby disclaims all copyright interest in the program\n"); 6409ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " `Gnomovision' (which makes passes at compilers) written by James Hacker.\n"); 6410ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6411ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " <signature of Ty Coon>, 1 April 1989\n"); 6412ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, " Ty Coon, President of Vice\n"); 6413ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6414ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "This General Public License does not permit incorporating your program into\n"); 6415ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "proprietary programs. If your program is a subroutine library, you may\n"); 6416ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "consider it more useful to permit linking proprietary applications with the\n"); 6417ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "library. If this is what you want to do, use the GNU Library General\n"); 6418ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "Public License instead of this License.\n"); 6419ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6420ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown my_strcat(inbuf, "\n"); 6421ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 6422ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6423ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <stdio.h> 6424ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <assert.h> 6425ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6426ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* For providing services. */ 6427ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic HWord g_serviceFn ( HWord arg1, HWord arg2 ) 6428ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 6429ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown switch (arg1) { 6430ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 0: /* EXIT */ 6431ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown exit(0); 6432ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 1: /* PUTC */ 6433ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown putchar(arg2); 6434ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 6435ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 2: /* MALLOC */ 6436ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return (HWord)malloc(arg2); 6437ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case 3: /* FREE */ 6438ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown free((void*)arg2); 6439ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 6440ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown default: 6441ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown assert(0); 6442ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6443ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 6444ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6445ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstatic char *bzerrorstrings[] = { 6446ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown "OK" 6447ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"SEQUENCE_ERROR" 6448ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"PARAM_ERROR" 6449ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"MEM_ERROR" 6450ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR" 6451ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"DATA_ERROR_MAGIC" 6452ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"IO_ERROR" 6453ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"UNEXPECTED_EOF" 6454ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"OUTBUFF_FULL" 6455ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"CONFIG_ERROR" 6456ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6457ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6458ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6459ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6460ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6461ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ,"???" /* for future */ 6462ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 6463ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6464ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// If given a cmd line arg, behave as a correctness regtest 6465ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// (run fast and be verbose). If not, run for a long time 6466ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// which is what is needed for the performance suite. 6467ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint main ( int argc, char** argv ) 6468ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 6469ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int r; 6470ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int bit; 6471ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int i; 6472ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6473ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int regtest; 6474ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown assert(argc == 1 || argc == 2); 6475ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown regtest = argc==2; 6476ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown regtest = 1; 6477ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown serviceFn = g_serviceFn; 6478ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6479ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown set_inbuf(); 6480ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nIn = vex_strlen(inbuf)+1; 6481ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "%d bytes read\n", nIn ); 6482ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6483ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nZ = M_BLOCK; 6484ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = BZ2_bzBuffToBuffCompress ( 6485ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown zbuf, &nZ, inbuf, nIn, 9, 3/*verb*/, 30 ); 6486ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6487ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r != BZ_OK) { 6488ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf("initial compress failed!\n"); 6489ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 6490ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6491ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "%d after compression\n", nZ ); 6492ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6493ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (bit = 0; bit < nZ*8; bit += (bit < 35 ? 1 : (regtest?2377:137))) { 6494ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (regtest) 6495ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "bit %d ", bit ); 6496ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flip_bit ( bit ); 6497ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown nOut = M_BLOCK_OUT; 6498ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown r = BZ2_bzBuffToBuffDecompress ( 6499ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown outbuf, &nOut, zbuf, nZ, 1/*small*/, 0 ); 6500ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (regtest) 6501ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( " %d %s ", r, bzerrorstrings[-r] ); 6502ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6503ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (r != BZ_OK) { 6504ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (regtest) 6505ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "\n" ); 6506ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 6507ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (nOut != nIn) { 6508ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "nIn/nOut mismatch %d %d\n", nIn, nOut ); 6509ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 6510ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } else { 6511ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nOut; i++) 6512ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (inbuf[i] != outbuf[i]) { 6513ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "mismatch at %d\n", i ); 6514ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 6515ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6516ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (i == nOut) vex_printf( "really ok!\n" ); 6517ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6518ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6519ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6520ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown flip_bit ( bit ); 6521ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6522ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6523ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if 0 6524ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown assert (nOut == nIn); 6525ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < nOut; i++) { 6526ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if (inbuf[i] != outbuf[i]) { 6527ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "difference at %d !\n", i ); 6528ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 1; 6529ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6530ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 6531ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 6532ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6533ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown vex_printf( "all ok\n" ); 6534ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (*serviceFn)(0,0); 6535ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /*NOTREACHED*/ 6536ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 6537ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 6538