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annotate app/src/main/java/com/jcraft/jzlib/InfCodes.java @ 494:3484e9b9b734

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Added tag stable-1.9.4-3 for changeset 0a17c6e7cb0f
author Carl Byington <carl@five-ten-sg.com>
date Sun, 05 Jun 2022 11:16:21 -0700
parents d29cce60f393
children
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1 /* -*-mode:java; c-basic-offset:2; -*- */
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2 /*
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3 Copyright (c) 2000,2001,2002,2003 ymnk, JCraft,Inc. All rights reserved.
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4
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5 Redistribution and use in source and binary forms, with or without
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6 modification, are permitted provided that the following conditions are met:
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7
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8 1. Redistributions of source code must retain the above copyright notice,
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9 this list of conditions and the following disclaimer.
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10
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11 2. Redistributions in binary form must reproduce the above copyright
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12 notice, this list of conditions and the following disclaimer in
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13 the documentation and/or other materials provided with the distribution.
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14
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15 3. The names of the authors may not be used to endorse or promote products
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16 derived from this software without specific prior written permission.
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17
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18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
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21 INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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22 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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24 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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25 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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26 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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27 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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28 */
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29 /*
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30 * This program is based on zlib-1.1.3, so all credit should go authors
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31 * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu)
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32 * and contributors of zlib.
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33 */
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34
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35 package com.jcraft.jzlib;
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36
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37 final class InfCodes{
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38
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39 static final private int[] inflate_mask = {
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40 0x00000000, 0x00000001, 0x00000003, 0x00000007, 0x0000000f,
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41 0x0000001f, 0x0000003f, 0x0000007f, 0x000000ff, 0x000001ff,
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42 0x000003ff, 0x000007ff, 0x00000fff, 0x00001fff, 0x00003fff,
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43 0x00007fff, 0x0000ffff
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44 };
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45
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46 static final private int Z_OK=0;
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47 static final private int Z_STREAM_END=1;
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48 static final private int Z_NEED_DICT=2;
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49 static final private int Z_ERRNO=-1;
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50 static final private int Z_STREAM_ERROR=-2;
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51 static final private int Z_DATA_ERROR=-3;
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52 static final private int Z_MEM_ERROR=-4;
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53 static final private int Z_BUF_ERROR=-5;
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54 static final private int Z_VERSION_ERROR=-6;
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55
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56 // waiting for "i:"=input,
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57 // "o:"=output,
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58 // "x:"=nothing
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59 static final private int START=0; // x: set up for LEN
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60 static final private int LEN=1; // i: get length/literal/eob next
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61 static final private int LENEXT=2; // i: getting length extra (have base)
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62 static final private int DIST=3; // i: get distance next
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63 static final private int DISTEXT=4;// i: getting distance extra
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64 static final private int COPY=5; // o: copying bytes in window, waiting for space
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65 static final private int LIT=6; // o: got literal, waiting for output space
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66 static final private int WASH=7; // o: got eob, possibly still output waiting
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67 static final private int END=8; // x: got eob and all data flushed
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68 static final private int BADCODE=9;// x: got error
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69
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70 int mode; // current inflate_codes mode
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71
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72 // mode dependent information
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73 int len;
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74
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75 int[] tree; // pointer into tree
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76 int tree_index=0;
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77 int need; // bits needed
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78
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79 int lit;
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80
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81 // if EXT or COPY, where and how much
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82 int get; // bits to get for extra
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83 int dist; // distance back to copy from
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84
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85 byte lbits; // ltree bits decoded per branch
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86 byte dbits; // dtree bits decoder per branch
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87 int[] ltree; // literal/length/eob tree
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88 int ltree_index; // literal/length/eob tree
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89 int[] dtree; // distance tree
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90 int dtree_index; // distance tree
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91
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92 private final ZStream z;
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93 private final InfBlocks s;
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94 InfCodes(ZStream z, InfBlocks s){
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95 this.z=z;
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96 this.s=s;
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97 }
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98
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99 void init(int bl, int bd,
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100 int[] tl, int tl_index,
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101 int[] td, int td_index){
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102 mode=START;
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103 lbits=(byte)bl;
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104 dbits=(byte)bd;
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105 ltree=tl;
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106 ltree_index=tl_index;
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107 dtree = td;
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108 dtree_index=td_index;
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109 tree=null;
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110 }
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111
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112 int proc(int r){
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113 int j; // temporary storage
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114 int[] t; // temporary pointer
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115 int tindex; // temporary pointer
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116 int e; // extra bits or operation
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117 int b=0; // bit buffer
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118 int k=0; // bits in bit buffer
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119 int p=0; // input data pointer
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120 int n; // bytes available there
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diff changeset
121 int q; // output window write pointer
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diff changeset
122 int m; // bytes to end of window or read pointer
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parents: 0
diff changeset
123 int f; // pointer to copy strings from
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diff changeset
124
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diff changeset
125 // copy input/output information to locals (UPDATE macro restores)
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diff changeset
126 p=z.next_in_index;n=z.avail_in;b=s.bitb;k=s.bitk;
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parents: 0
diff changeset
127 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
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parents: 0
diff changeset
128
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diff changeset
129 // process input and output based on current state
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diff changeset
130 while (true){
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parents: 0
diff changeset
131 switch (mode){
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diff changeset
132 // waiting for "i:"=input, "o:"=output, "x:"=nothing
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diff changeset
133 case START: // x: set up for LEN
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diff changeset
134 if (m >= 258 && n >= 10){
0
0ce5cc452d02 initial version
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diff changeset
135
357
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diff changeset
136 s.bitb=b;s.bitk=k;
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parents: 0
diff changeset
137 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
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diff changeset
138 s.write=q;
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diff changeset
139 r = inflate_fast(lbits, dbits,
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diff changeset
140 ltree, ltree_index,
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parents: 0
diff changeset
141 dtree, dtree_index,
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
142 s, z);
0
0ce5cc452d02 initial version
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diff changeset
143
357
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diff changeset
144 p=z.next_in_index;n=z.avail_in;b=s.bitb;k=s.bitk;
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diff changeset
145 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
0
0ce5cc452d02 initial version
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146
357
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parents: 0
diff changeset
147 if (r != Z_OK){
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diff changeset
148 mode = r == Z_STREAM_END ? WASH : BADCODE;
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diff changeset
149 break;
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diff changeset
150 }
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
151 }
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
152 need = lbits;
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diff changeset
153 tree = ltree;
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diff changeset
154 tree_index=ltree_index;
0
0ce5cc452d02 initial version
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diff changeset
155
357
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parents: 0
diff changeset
156 mode = LEN;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
157 case LEN: // i: get length/literal/eob next
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
158 j = need;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
159
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parents: 0
diff changeset
160 while(k<(j)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
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parents: 0
diff changeset
161 if(n!=0)r=Z_OK;
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parents: 0
diff changeset
162 else{
0
0ce5cc452d02 initial version
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diff changeset
163
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
164 s.bitb=b;s.bitk=k;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
165 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
166 s.write=q;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
167 return s.inflate_flush(r);
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
168 }
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
169 n--;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
170 b|=(z.next_in[p++]&0xff)<<k;
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
171 k+=8;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
172 }
0
0ce5cc452d02 initial version
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diff changeset
173
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
174 tindex=(tree_index+(b&inflate_mask[j]))*3;
0
0ce5cc452d02 initial version
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175
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
176 b>>>=(tree[tindex+1]);
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diff changeset
177 k-=(tree[tindex+1]);
0
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178
357
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diff changeset
179 e=tree[tindex];
0
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180
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
181 if(e == 0){ // literal
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
182 lit = tree[tindex+2];
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diff changeset
183 mode = LIT;
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diff changeset
184 break;
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diff changeset
185 }
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
186 if((e & 16)!=0 ){ // length
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
187 get = e & 15;
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
188 len = tree[tindex+2];
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
189 mode = LENEXT;
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diff changeset
190 break;
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parents: 0
diff changeset
191 }
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
192 if ((e & 64) == 0){ // next table
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diff changeset
193 need = e;
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
194 tree_index = tindex/3+tree[tindex+2];
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diff changeset
195 break;
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diff changeset
196 }
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diff changeset
197 if ((e & 32)!=0){ // end of block
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diff changeset
198 mode = WASH;
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diff changeset
199 break;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
200 }
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
201 mode = BADCODE; // invalid code
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
202 z.msg = "invalid literal/length code";
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
203 r = Z_DATA_ERROR;
0
0ce5cc452d02 initial version
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parents:
diff changeset
204
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
205 s.bitb=b;s.bitk=k;
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Carl Byington <carl@five-ten-sg.com>
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diff changeset
206 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
207 s.write=q;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
208 return s.inflate_flush(r);
0
0ce5cc452d02 initial version
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parents:
diff changeset
209
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
210 case LENEXT: // i: getting length extra (have base)
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
211 j = get;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
212
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
213 while(k<(j)){
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
214 if(n!=0)r=Z_OK;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
215 else{
0
0ce5cc452d02 initial version
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parents:
diff changeset
216
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
217 s.bitb=b;s.bitk=k;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
218 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
219 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
220 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
221 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
222 n--; b|=(z.next_in[p++]&0xff)<<k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
223 k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
224 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
225
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
226 len += (b & inflate_mask[j]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
227
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
228 b>>=j;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
229 k-=j;
0
0ce5cc452d02 initial version
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parents:
diff changeset
230
357
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
231 need = dbits;
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Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
232 tree = dtree;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
233 tree_index=dtree_index;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
234 mode = DIST;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
235 case DIST: // i: get distance next
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
236 j = need;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
237
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
238 while(k<(j)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
239 if(n!=0)r=Z_OK;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
240 else{
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
241
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
242 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
243 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
244 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
245 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
246 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
247 n--; b|=(z.next_in[p++]&0xff)<<k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
248 k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
249 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
250
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
251 tindex=(tree_index+(b & inflate_mask[j]))*3;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
252
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
253 b>>=tree[tindex+1];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
254 k-=tree[tindex+1];
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
255
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
256 e = (tree[tindex]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
257 if((e & 16)!=0){ // distance
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
258 get = e & 15;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
259 dist = tree[tindex+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
260 mode = DISTEXT;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
261 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
262 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
263 if ((e & 64) == 0){ // next table
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
264 need = e;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
265 tree_index = tindex/3 + tree[tindex+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
266 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
267 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
268 mode = BADCODE; // invalid code
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
269 z.msg = "invalid distance code";
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
270 r = Z_DATA_ERROR;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
272 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
273 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
274 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
275 return s.inflate_flush(r);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
276
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
277 case DISTEXT: // i: getting distance extra
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
278 j = get;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
279
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
280 while(k<(j)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
281 if(n!=0)r=Z_OK;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
282 else{
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
283
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
284 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
285 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
286 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
287 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
288 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
289 n--; b|=(z.next_in[p++]&0xff)<<k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
290 k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
291 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
292
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
293 dist += (b & inflate_mask[j]);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
294
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
295 b>>=j;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
296 k-=j;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
297
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
298 mode = COPY;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
299 case COPY: // o: copying bytes in window, waiting for space
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
300 f = q - dist;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
301 while(f < 0){ // modulo window size-"while" instead
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
302 f += s.end; // of "if" handles invalid distances
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
303 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
304 while (len!=0){
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
305
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
306 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
307 if(q==s.end&&s.read!=0){q=0;m=q<s.read?s.read-q-1:s.end-q;}
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
308 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
309 s.write=q; r=s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
310 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
311
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
312 if(q==s.end&&s.read!=0){q=0;m=q<s.read?s.read-q-1:s.end-q;}
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
313
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
314 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
315 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
316 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
317 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
318 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
319 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
320 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
321 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
322
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
323 s.window[q++]=s.window[f++]; m--;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
324
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
325 if (f == s.end)
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
326 f = 0;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
327 len--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
328 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
329 mode = START;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
330 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
331 case LIT: // o: got literal, waiting for output space
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
332 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
333 if(q==s.end&&s.read!=0){q=0;m=q<s.read?s.read-q-1:s.end-q;}
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
334 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
335 s.write=q; r=s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
336 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
337
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
338 if(q==s.end&&s.read!=0){q=0;m=q<s.read?s.read-q-1:s.end-q;}
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
339 if(m==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
340 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
341 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
342 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
343 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
344 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
345 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
346 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
347 r=Z_OK;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
348
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
349 s.window[q++]=(byte)lit; m--;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
350
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
351 mode = START;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
352 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
353 case WASH: // o: got eob, possibly more output
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
354 if (k > 7){ // return unused byte, if any
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
355 k -= 8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
356 n++;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
357 p--; // can always return one
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
358 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
359
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
360 s.write=q; r=s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
361 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
362
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
363 if (s.read != s.write){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
364 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
365 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
366 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
367 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
368 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
369 mode = END;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
370 case END:
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
371 r = Z_STREAM_END;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
372 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
373 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
374 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
375 return s.inflate_flush(r);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
376
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
377 case BADCODE: // x: got error
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
378
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
379 r = Z_DATA_ERROR;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
380
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
381 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
382 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
383 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
384 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
385
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
386 default:
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
387 r = Z_STREAM_ERROR;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
388
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
389 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
390 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
391 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
392 return s.inflate_flush(r);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
393 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
394 }
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
395 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
396
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
397 void free(ZStream z){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
398 // ZFREE(z, c);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
399 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
400
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
401 // Called with number of bytes left to write in window at least 258
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
402 // (the maximum string length) and number of input bytes available
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
403 // at least ten. The ten bytes are six bytes for the longest length/
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
404 // distance pair plus four bytes for overloading the bit buffer.
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
405
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
406 int inflate_fast(int bl, int bd,
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
407 int[] tl, int tl_index,
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
408 int[] td, int td_index,
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
409 InfBlocks s, ZStream z){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
410 int t; // temporary pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
411 int[] tp; // temporary pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
412 int tp_index; // temporary pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
413 int e; // extra bits or operation
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
414 int b; // bit buffer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
415 int k; // bits in bit buffer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
416 int p; // input data pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
417 int n; // bytes available there
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
418 int q; // output window write pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
419 int m; // bytes to end of window or read pointer
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
420 int ml; // mask for literal/length tree
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
421 int md; // mask for distance tree
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
422 int c; // bytes to copy
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
423 int d; // distance back to copy from
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
424 int r; // copy source pointer
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
425
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
426 int tp_index_t_3; // (tp_index+t)*3
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
427
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
428 // load input, output, bit values
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
429 p=z.next_in_index;n=z.avail_in;b=s.bitb;k=s.bitk;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
430 q=s.write;m=q<s.read?s.read-q-1:s.end-q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
431
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
432 // initialize masks
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
433 ml = inflate_mask[bl];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
434 md = inflate_mask[bd];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
435
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
436 // do until not enough input or output space for fast loop
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
437 do { // assume called with m >= 258 && n >= 10
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
438 // get literal/length code
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
439 while(k<(20)){ // max bits for literal/length code
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
440 n--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
441 b|=(z.next_in[p++]&0xff)<<k;k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
442 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
443
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
444 t= b&ml;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
445 tp=tl;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
446 tp_index=tl_index;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
447 tp_index_t_3=(tp_index+t)*3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
448 if ((e = tp[tp_index_t_3]) == 0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
449 b>>=(tp[tp_index_t_3+1]); k-=(tp[tp_index_t_3+1]);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
450
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
451 s.window[q++] = (byte)tp[tp_index_t_3+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
452 m--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
453 continue;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
454 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
455 do {
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
456
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
457 b>>=(tp[tp_index_t_3+1]); k-=(tp[tp_index_t_3+1]);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
458
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
459 if((e&16)!=0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
460 e &= 15;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
461 c = tp[tp_index_t_3+2] + ((int)b & inflate_mask[e]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
462
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
463 b>>=e; k-=e;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
464
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
465 // decode distance base of block to copy
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
466 while(k<(15)){ // max bits for distance code
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
467 n--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
468 b|=(z.next_in[p++]&0xff)<<k;k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
469 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
470
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
471 t= b&md;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
472 tp=td;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
473 tp_index=td_index;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
474 tp_index_t_3=(tp_index+t)*3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
475 e = tp[tp_index_t_3];
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
476
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
477 do {
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
478
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
479 b>>=(tp[tp_index_t_3+1]); k-=(tp[tp_index_t_3+1]);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
480
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
481 if((e&16)!=0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
482 // get extra bits to add to distance base
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
483 e &= 15;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
484 while(k<(e)){ // get extra bits (up to 13)
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
485 n--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
486 b|=(z.next_in[p++]&0xff)<<k;k+=8;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
487 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
488
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
489 d = tp[tp_index_t_3+2] + (b&inflate_mask[e]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
490
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
491 b>>=(e); k-=(e);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
492
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
493 // do the copy
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
494 m -= c;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
495 if (q >= d){ // offset before dest
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
496 // just copy
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
497 r=q-d;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
498 if(q-r>0 && 2>(q-r)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
499 s.window[q++]=s.window[r++]; // minimum count is three,
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
500 s.window[q++]=s.window[r++]; // so unroll loop a little
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
501 c-=2;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
502 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
503 else{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
504 System.arraycopy(s.window, r, s.window, q, 2);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
505 q+=2; r+=2; c-=2;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
506 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
507 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
508 else{ // else offset after destination
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
509 r=q-d;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
510 do{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
511 r+=s.end; // force pointer in window
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
512 }while(r<0); // covers invalid distances
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
513 e=s.end-r;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
514 if(c>e){ // if source crosses,
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
515 c-=e; // wrapped copy
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
516 if(q-r>0 && e>(q-r)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
517 do{s.window[q++] = s.window[r++];}
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
518 while(--e!=0);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
519 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
520 else{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
521 System.arraycopy(s.window, r, s.window, q, e);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
522 q+=e; r+=e; e=0;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
523 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
524 r = 0; // copy rest from start of window
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
525 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
526
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
527 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
528
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
529 // copy all or what's left
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
530 if(q-r>0 && c>(q-r)){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
531 do{s.window[q++] = s.window[r++];}
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
532 while(--c!=0);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
533 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
534 else{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
535 System.arraycopy(s.window, r, s.window, q, c);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
536 q+=c; r+=c; c=0;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
537 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
538 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
539 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
540 else if((e&64)==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
541 t+=tp[tp_index_t_3+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
542 t+=(b&inflate_mask[e]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
543 tp_index_t_3=(tp_index+t)*3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
544 e=tp[tp_index_t_3];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
545 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
546 else{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
547 z.msg = "invalid distance code";
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
548
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
549 c=z.avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
550
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
551 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
552 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
553 s.write=q;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
554
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
555 return Z_DATA_ERROR;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
556 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
557 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
558 while(true);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
559 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
560 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
561
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
562 if((e&64)==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
563 t+=tp[tp_index_t_3+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
564 t+=(b&inflate_mask[e]);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
565 tp_index_t_3=(tp_index+t)*3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
566 if((e=tp[tp_index_t_3])==0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
567
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
568 b>>=(tp[tp_index_t_3+1]); k-=(tp[tp_index_t_3+1]);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
569
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
570 s.window[q++]=(byte)tp[tp_index_t_3+2];
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
571 m--;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
572 break;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
573 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
574 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
575 else if((e&32)!=0){
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
576
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
577 c=z.avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
578
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
579 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
580 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
581 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
582
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
583 return Z_STREAM_END;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
584 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
585 else{
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
586 z.msg="invalid literal/length code";
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
587
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
588 c=z.avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
589
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
590 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
591 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
592 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
593
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
594 return Z_DATA_ERROR;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
595 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
596 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
597 while(true);
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
598 }
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
599 while(m>=258 && n>= 10);
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
600
357
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
601 // not enough input or output--restore pointers and return
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
602 c=z.avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
603
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
604 s.bitb=b;s.bitk=k;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
605 z.avail_in=n;z.total_in+=p-z.next_in_index;z.next_in_index=p;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
606 s.write=q;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
607
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
608 return Z_OK;
46c2115ae1c8 update jzlib to a21be20213d66eff15904d925e9b721956a01ef7
Carl Byington <carl@five-ten-sg.com>
parents: 0
diff changeset
609 }
0
0ce5cc452d02 initial version
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
610 }