Convert lz77 to use fixed buffer sizes.

src/compression/huffman/HuffmanEncoder.cpp

@@ -98,3 +98,47 @@ void HuffmanEncoder::encode(const std::unordered_map<unsigned char, unsigned>& c
 
     std::cout << "********" << std::endl;
 }
+
+void HuffmanEncoder::setUseFixedCode(bool useFixed)
+{
+    mUseFixedCode = useFixed;
+}
+
+uint32_t HuffmanEncoder::getLengthValue(unsigned length)
+{
+    return 0;
+}
+
+std::optional<PrefixCode> HuffmanEncoder::getLiteralValue(unsigned char value) const
+{
+    return mLiteralLengthTable.getCodeForSymbol(value);
+}
+
+std::optional<PrefixCode> HuffmanEncoder::getLengthValue(unsigned length) const
+{
+    return mLiteralLengthTable.getCodeForSymbol(length);
+}
+
+std::optional<PrefixCode> HuffmanEncoder::getDistanceValue(unsigned distance) const
+{
+    return mDistanceTable.getCodeForSymbol(distance);
+}
+
+std::optional<PrefixCode> HuffmanEncoder::getEndOfStreamValue() const
+{
+    return mLiteralLengthTable.getCodeForSymbol(256);
+}
+
+void HuffmanEncoder::initializeTrees()
+{
+    initializeLiteralLengthTable();
+}
+
+void HuffmanEncoder::initializeLiteralLengthTable()
+{
+    if(mUseFixedCode)
+    {
+        mLiteralLengthTable.setInputLengthSequence(HuffmanFixedCodes::getDeflateFixedHuffmanCodes(), false);
+        mLiteralLengthTable.buildPrefixCodes();
+    }
+}