public byte[] uncompress(byte[] buffer, int start, int[] length) {
int inflated_end = 0;
stream.next_in = buffer;
stream.next_in_index = start;
stream.avail_in = length[0];
while (true) {
stream.next_out = tmpbuf;
stream.next_out_index = 0;
stream.avail_out = BUF_SIZE;
int status = stream.inflate(JZlib.Z_PARTIAL_FLUSH);
switch (status) {
case JZlib.Z_OK:
if (inflated_buf.length < inflated_end + BUF_SIZE - stream.avail_out) {
byte[] foo = new byte[inflated_end + BUF_SIZE - stream.avail_out];
System.arraycopy(inflated_buf, 0, foo, 0, inflated_end);
inflated_buf = foo;
}
System.arraycopy(tmpbuf, 0, inflated_buf, inflated_end, BUF_SIZE - stream.avail_out);
inflated_end += (BUF_SIZE - stream.avail_out);
length[0] = inflated_end;
break;
case JZlib.Z_BUF_ERROR:
if (inflated_end > buffer.length - start) {
byte[] foo = new byte[inflated_end + start];
System.arraycopy(buffer, 0, foo, 0, start);
System.arraycopy(inflated_buf, 0, foo, start, inflated_end);
buffer = foo;
} else {
System.arraycopy(inflated_buf, 0, buffer, start, inflated_end);
}
length[0] = inflated_end;
return buffer;
default:
System.err.println("uncompress: inflate returnd " + status);
return null;
}
}
}
public int compress(byte[] buf, int start, int len) {
stream.next_in = buf;
stream.next_in_index = start;
stream.avail_in = len - start;
int status;
int outputlen = start;
do {
stream.next_out = tmpbuf;
stream.next_out_index = 0;
stream.avail_out = BUF_SIZE;
status = stream.deflate(JZlib.Z_PARTIAL_FLUSH);
switch (status) {
case JZlib.Z_OK:
System.arraycopy(tmpbuf, 0, buf, outputlen, BUF_SIZE - stream.avail_out);
outputlen += (BUF_SIZE - stream.avail_out);
break;
default:
System.err.println("compress: deflate returnd " + status);
}
} while (stream.avail_out == 0);
return outputlen;
}
