--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/com/jcraft/jzlib/Deflater.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,171 @@
+/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
+/*
+Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright 
+     notice, this list of conditions and the following disclaimer in 
+     the documentation and/or other materials provided with the distribution.
+
+  3. The names of the authors may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
+INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*
+ * This program is based on zlib-1.1.3, so all credit should go authors
+ * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu)
+ * and contributors of zlib.
+ */
+
+package com.jcraft.jzlib;
+
+final public class Deflater extends ZStream{
+
+  static final private int MAX_WBITS=15;        // 32K LZ77 window
+  static final private int DEF_WBITS=MAX_WBITS;
+
+  static final private int Z_NO_FLUSH=0;
+  static final private int Z_PARTIAL_FLUSH=1;
+  static final private int Z_SYNC_FLUSH=2;
+  static final private int Z_FULL_FLUSH=3;
+  static final private int Z_FINISH=4;
+
+  static final private int MAX_MEM_LEVEL=9;
+
+  static final private int Z_OK=0;
+  static final private int Z_STREAM_END=1;
+  static final private int Z_NEED_DICT=2;
+  static final private int Z_ERRNO=-1;
+  static final private int Z_STREAM_ERROR=-2;
+  static final private int Z_DATA_ERROR=-3;
+  static final private int Z_MEM_ERROR=-4;
+  static final private int Z_BUF_ERROR=-5;
+  static final private int Z_VERSION_ERROR=-6;
+
+  private boolean finished = false;
+
+  public Deflater(){
+    super();
+  }
+
+  public Deflater(int level) throws GZIPException {
+    this(level, MAX_WBITS);
+  }
+
+  public Deflater(int level, boolean nowrap) throws GZIPException {
+    this(level, MAX_WBITS, nowrap);
+  }
+
+  public Deflater(int level, int bits) throws GZIPException {
+    this(level, bits, false);
+  }
+
+  public Deflater(int level, int bits, boolean nowrap) throws GZIPException {
+    super();
+    int ret = init(level, bits, nowrap);
+    if(ret!=Z_OK)
+      throw new GZIPException(ret+": "+msg);
+  }
+
+  public Deflater(int level, int bits, int memlevel, JZlib.WrapperType wrapperType) throws GZIPException {
+    super();
+    int ret = init(level, bits, memlevel, wrapperType);
+    if(ret!=Z_OK)
+      throw new GZIPException(ret+": "+msg);
+  }
+
+  public Deflater(int level, int bits, int memlevel) throws GZIPException {
+    super();
+    int ret = init(level, bits, memlevel);
+    if(ret!=Z_OK)
+      throw new GZIPException(ret+": "+msg);
+  }
+
+  public int init(int level){
+    return init(level, MAX_WBITS);
+  }
+  public int init(int level, boolean nowrap){
+    return init(level, MAX_WBITS, nowrap);
+  }
+  public int init(int level, int bits){
+    return init(level, bits, false);
+  }
+  public int init(int level, int bits, int memlevel, JZlib.WrapperType wrapperType){
+    if(bits < 9 || bits > 15){
+      return Z_STREAM_ERROR;
+    }
+    if(wrapperType == JZlib.W_NONE) {
+      bits *= -1;
+    }
+    else if(wrapperType == JZlib.W_GZIP) {
+        bits += 16;
+    }
+    else if(wrapperType == JZlib.W_ANY) {
+        return Z_STREAM_ERROR;
+    }
+    else if(wrapperType == JZlib.W_ZLIB) {
+    }
+    return init(level, bits, memlevel);
+  }
+  public int init(int level, int bits, int memlevel){
+    finished = false;
+    dstate=new Deflate(this);
+    return dstate.deflateInit(level, bits, memlevel);
+  }
+  public int init(int level, int bits, boolean nowrap){
+    finished = false;
+    dstate=new Deflate(this);
+    return dstate.deflateInit(level, nowrap?-bits:bits);
+  }
+
+  public int deflate(int flush){
+    if(dstate==null){
+      return Z_STREAM_ERROR;
+    }
+    int ret = dstate.deflate(flush);
+    if(ret == Z_STREAM_END)
+      finished = true;
+    return ret;
+  }
+  public int end(){
+    finished = true;
+    if(dstate==null) return Z_STREAM_ERROR;
+    int ret=dstate.deflateEnd();
+    dstate=null;
+    free();
+    return ret;
+  }
+  public int params(int level, int strategy){
+    if(dstate==null) return Z_STREAM_ERROR;
+    return dstate.deflateParams(level, strategy);
+  }
+  public int setDictionary (byte[] dictionary, int dictLength){
+    if(dstate == null)
+      return Z_STREAM_ERROR;
+    return dstate.deflateSetDictionary(dictionary, dictLength);
+  }
+
+  public boolean finished(){
+    return finished;
+  }
+
+  public int copy(Deflater src){
+    this.finished = src.finished;
+    return Deflate.deflateCopy(this, src);
+  }
+}