1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/zip/JzLibInflater.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,137 @@
1.4 +/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
1.5 +/*
1.6 +Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
1.7 +
1.8 +Redistribution and use in source and binary forms, with or without
1.9 +modification, are permitted provided that the following conditions are met:
1.10 +
1.11 + 1. Redistributions of source code must retain the above copyright notice,
1.12 + this list of conditions and the following disclaimer.
1.13 +
1.14 + 2. Redistributions in binary form must reproduce the above copyright
1.15 + notice, this list of conditions and the following disclaimer in
1.16 + the documentation and/or other materials provided with the distribution.
1.17 +
1.18 + 3. The names of the authors may not be used to endorse or promote products
1.19 + derived from this software without specific prior written permission.
1.20 +
1.21 +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
1.22 +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.23 +FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
1.24 +INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
1.25 +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.26 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
1.27 +OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.28 +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.29 +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
1.30 +EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.31 + */
1.32 +/*
1.33 + * This program is based on zlib-1.1.3, so all credit should go authors
1.34 + * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu)
1.35 + * and contributors of zlib.
1.36 + */
1.37 +
1.38 +package org.apidesign.bck2brwsr.emul.zip;
1.39 +
1.40 +final class JzLibInflater extends ZStream{
1.41 +
1.42 + static final private int MAX_WBITS=15; // 32K LZ77 window
1.43 + static final private int DEF_WBITS=MAX_WBITS;
1.44 +
1.45 + public static final int Z_NO_FLUSH=0;
1.46 + static final private int Z_PARTIAL_FLUSH=1;
1.47 + static final private int Z_SYNC_FLUSH=2;
1.48 + static final private int Z_FULL_FLUSH=3;
1.49 + static final private int Z_FINISH=4;
1.50 +
1.51 + static final private int MAX_MEM_LEVEL=9;
1.52 +
1.53 + static final private int Z_OK=0;
1.54 + static final private int Z_STREAM_END=1;
1.55 + static final private int Z_NEED_DICT=2;
1.56 + static final private int Z_ERRNO=-1;
1.57 + static final private int Z_STREAM_ERROR=-2;
1.58 + static final private int Z_DATA_ERROR=-3;
1.59 + static final private int Z_MEM_ERROR=-4;
1.60 + static final private int Z_BUF_ERROR=-5;
1.61 + static final private int Z_VERSION_ERROR=-6;
1.62 +
1.63 + public JzLibInflater() {
1.64 + super();
1.65 + init();
1.66 + }
1.67 +
1.68 + public JzLibInflater(int w) {
1.69 + this(w, false);
1.70 + }
1.71 +
1.72 + public JzLibInflater(int w, boolean nowrap) {
1.73 + super();
1.74 + int ret = init(w, nowrap);
1.75 + if(ret!=Z_OK)
1.76 + throw new IllegalStateException(ret+": "+msg);
1.77 + }
1.78 +
1.79 + private boolean finished = false;
1.80 +
1.81 + public int init(){
1.82 + return init(DEF_WBITS);
1.83 + }
1.84 +
1.85 + public int init(boolean nowrap){
1.86 + return init(DEF_WBITS, nowrap);
1.87 + }
1.88 +
1.89 + public int init(int w){
1.90 + return init(w, false);
1.91 + }
1.92 +
1.93 + public int init(int w, boolean nowrap){
1.94 + finished = false;
1.95 + istate=new Inflate(this);
1.96 + return istate.inflateInit(nowrap?-w:w);
1.97 + }
1.98 +
1.99 + public int inflate(int f){
1.100 + if(istate==null) return Z_STREAM_ERROR;
1.101 + int ret = istate.inflate(f);
1.102 + if(ret == Z_STREAM_END)
1.103 + finished = true;
1.104 + return ret;
1.105 + }
1.106 +
1.107 + public int end(){
1.108 + finished = true;
1.109 + if(istate==null) return Z_STREAM_ERROR;
1.110 + int ret=istate.inflateEnd();
1.111 +// istate = null;
1.112 + return ret;
1.113 + }
1.114 +
1.115 + public int sync(){
1.116 + if(istate == null)
1.117 + return Z_STREAM_ERROR;
1.118 + return istate.inflateSync();
1.119 + }
1.120 +
1.121 + public int syncPoint(){
1.122 + if(istate == null)
1.123 + return Z_STREAM_ERROR;
1.124 + return istate.inflateSyncPoint();
1.125 + }
1.126 +
1.127 + public int setDictionary(byte[] dictionary, int dictLength){
1.128 + if(istate == null)
1.129 + return Z_STREAM_ERROR;
1.130 + return istate.inflateSetDictionary(dictionary, dictLength);
1.131 + }
1.132 +
1.133 + public boolean finished(){
1.134 + return istate.mode==12 /*DONE*/;
1.135 + }
1.136 +
1.137 + public boolean needDict() {
1.138 + return istate == null ? false : istate.mode == Inflate.DICT0;
1.139 + }
1.140 +}