Deflater_deflate2.java

//

package net.sf.zipme;
class Deflater_deflate2 {
  Deflater_deflate2(  Deflater _this,  byte[] output,  int offset,  int length){
    this._this=_this;
    this.output=output;
    this.offset=offset;
    this.length=length;
  }
  int execute(){
    origLength=length;
    if (_this.state == _this.CLOSED_STATE)     throw new IllegalStateException("Deflater closed");
    if (_this.state < _this.BUSY_STATE) {
      header=(_this.DEFLATED + ((DeflaterConstants.MAX_WBITS - 8) << 4)) << 8;
      level_flags=(_this.level - 1) >> 1;
      if (level_flags < 0 || level_flags > 3)       level_flags=3;
      header|=level_flags << 6;
      if ((_this.state & _this.IS_SETDICT) != 0)       header|=DeflaterConstants.PRESET_DICT;
      header+=31 - (header % 31);
      _this.pending.writeShortMSB(header);
      if ((_this.state & _this.IS_SETDICT) != 0) {
        this.hook22();
      }
      _this.state=_this.BUSY_STATE | (_this.state & (_this.IS_FLUSHING | _this.IS_FINISHING));
    }
    for (; ; ) {
      count=_this.pending.flush(output,offset,length);
      offset+=count;
      _this.totalOut+=count;
      length-=count;
      if (length == 0 || _this.state == _this.FINISHED_STATE)       break;
      if (!_this.engine.deflate((_this.state & _this.IS_FLUSHING) != 0,(_this.state & _this.IS_FINISHING) != 0)) {
        if (_this.state == _this.BUSY_STATE)         return origLength - length;
 else         if (_this.state == _this.FLUSHING_STATE) {
          if (_this.level != _this.NO_COMPRESSION) {
            neededbits=8 + ((-_this.pending.getBitCount()) & 7);
            while (neededbits > 0) {
              _this.pending.writeBits(2,10);
              neededbits-=10;
            }
          }
          _this.state=_this.BUSY_STATE;
        }
 else         if (_this.state == _this.FINISHING_STATE) {
          _this.pending.alignToByte();
          if (!_this.noHeader) {
            this.hook23();
          }
          _this.state=_this.FINISHED_STATE;
        }
      }
    }
    return origLength - length;
  }
  protected Deflater _this;
  protected byte[] output;
  protected int offset;
  protected int length;
  protected int origLength;
  protected int header;
  protected int level_flags;
  protected int chksum;
  protected int count;
  protected int neededbits;
  protected int adler;
  protected void hook22(){
  }
  protected void hook23(){
  }
}