/**
* Writes and compresses a single byte to the underlying output stream.
*
* @param b byte to write
* @throws IOException if anything goes wrong
*/
@Override
public void write(int b) throws IOException {
if (prefixCode == -1) {
prefixCode = b;
} else {
int newPrefixCode = table.codeValue(prefixCode, (byte) b);
if (newPrefixCode != -1) {
prefixCode = newPrefixCode;
} else {
writer.write(prefixCode);
boolean added = table.add(prefixCode, (byte) b);
if (added && codeWidthNeedsToBeIncreased()) {
writer.increaseCodeWidth();
codeWidth++;
}
prefixCode = b;
}
}
}
