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authorMalfurious <m@lfurio.us>2024-10-21 11:09:00 -0400
committerMalfurious <m@lfurio.us>2024-10-24 06:41:41 -0400
commit5494fc310acf0aabb9d828451331e44483eb21c7 (patch)
tree77280a586d52470fca89b9ed73f5f1faaf7907c6 /cryptopp562/zdeflate.h
parent428471d39fb8c205a9fad899c88c30a2cb7df685 (diff)
downloadcompass-5494fc310acf0aabb9d828451331e44483eb21c7.tar.gz
compass-5494fc310acf0aabb9d828451331e44483eb21c7.zip
Remove Crypto++ library
The tracked version of Crypto++ is going on 10 years old and doesn't always compile properly on modern tooling. This removes the entire subdirectory as well as references to files in the build script. Due to the number of files touched by this commit, I opt to add its replacement in the next commit. Signed-off-by: Malfurious <m@lfurio.us>
Diffstat (limited to 'cryptopp562/zdeflate.h')
-rw-r--r--cryptopp562/zdeflate.h121
1 files changed, 0 insertions, 121 deletions
diff --git a/cryptopp562/zdeflate.h b/cryptopp562/zdeflate.h
deleted file mode 100644
index 8bbd14e..0000000
--- a/cryptopp562/zdeflate.h
+++ /dev/null
@@ -1,121 +0,0 @@
-#ifndef CRYPTOPP_ZDEFLATE_H
-#define CRYPTOPP_ZDEFLATE_H
-
-#include "filters.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! _
-class LowFirstBitWriter : public Filter
-{
-public:
- LowFirstBitWriter(BufferedTransformation *attachment);
- void PutBits(unsigned long value, unsigned int length);
- void FlushBitBuffer();
- void ClearBitBuffer();
-
- void StartCounting();
- unsigned long FinishCounting();
-
-protected:
- bool m_counting;
- unsigned long m_bitCount;
- unsigned long m_buffer;
- unsigned int m_bitsBuffered, m_bytesBuffered;
- FixedSizeSecBlock<byte, 256> m_outputBuffer;
-};
-
-//! Huffman Encoder
-class HuffmanEncoder
-{
-public:
- typedef unsigned int code_t;
- typedef unsigned int value_t;
-
- HuffmanEncoder() {}
- HuffmanEncoder(const unsigned int *codeBits, unsigned int nCodes);
- void Initialize(const unsigned int *codeBits, unsigned int nCodes);
-
- static void GenerateCodeLengths(unsigned int *codeBits, unsigned int maxCodeBits, const unsigned int *codeCounts, size_t nCodes);
-
- void Encode(LowFirstBitWriter &writer, value_t value) const;
-
- struct Code
- {
- unsigned int code;
- unsigned int len;
- };
-
- SecBlock<Code> m_valueToCode;
-};
-
-//! DEFLATE (RFC 1951) compressor
-
-class Deflator : public LowFirstBitWriter
-{
-public:
- enum {MIN_DEFLATE_LEVEL = 0, DEFAULT_DEFLATE_LEVEL = 6, MAX_DEFLATE_LEVEL = 9};
- enum {MIN_LOG2_WINDOW_SIZE = 9, DEFAULT_LOG2_WINDOW_SIZE = 15, MAX_LOG2_WINDOW_SIZE = 15};
- /*! \note detectUncompressible makes it faster to process uncompressible files, but
- if a file has both compressible and uncompressible parts, it may fail to compress some of the
- compressible parts. */
- Deflator(BufferedTransformation *attachment=NULL, int deflateLevel=DEFAULT_DEFLATE_LEVEL, int log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, bool detectUncompressible=true);
- //! possible parameter names: Log2WindowSize, DeflateLevel, DetectUncompressible
- Deflator(const NameValuePairs &parameters, BufferedTransformation *attachment=NULL);
-
- //! this function can be used to set the deflate level in the middle of compression
- void SetDeflateLevel(int deflateLevel);
- int GetDeflateLevel() const {return m_deflateLevel;}
- int GetLog2WindowSize() const {return m_log2WindowSize;}
-
- void IsolatedInitialize(const NameValuePairs &parameters);
- size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking);
- bool IsolatedFlush(bool hardFlush, bool blocking);
-
-protected:
- virtual void WritePrestreamHeader() {}
- virtual void ProcessUncompressedData(const byte *string, size_t length) {}
- virtual void WritePoststreamTail() {}
-
- enum {STORED = 0, STATIC = 1, DYNAMIC = 2};
- enum {MIN_MATCH = 3, MAX_MATCH = 258};
-
- void InitializeStaticEncoders();
- void Reset(bool forceReset = false);
- unsigned int FillWindow(const byte *str, size_t length);
- unsigned int ComputeHash(const byte *str) const;
- unsigned int LongestMatch(unsigned int &bestMatch) const;
- void InsertString(unsigned int start);
- void ProcessBuffer();
-
- void LiteralByte(byte b);
- void MatchFound(unsigned int distance, unsigned int length);
- void EncodeBlock(bool eof, unsigned int blockType);
- void EndBlock(bool eof);
-
- struct EncodedMatch
- {
- unsigned literalCode : 9;
- unsigned literalExtra : 5;
- unsigned distanceCode : 5;
- unsigned distanceExtra : 13;
- };
-
- int m_deflateLevel, m_log2WindowSize, m_compressibleDeflateLevel;
- unsigned int m_detectSkip, m_detectCount;
- unsigned int DSIZE, DMASK, HSIZE, HMASK, GOOD_MATCH, MAX_LAZYLENGTH, MAX_CHAIN_LENGTH;
- bool m_headerWritten, m_matchAvailable;
- unsigned int m_dictionaryEnd, m_stringStart, m_lookahead, m_minLookahead, m_previousMatch, m_previousLength;
- HuffmanEncoder m_staticLiteralEncoder, m_staticDistanceEncoder, m_dynamicLiteralEncoder, m_dynamicDistanceEncoder;
- SecByteBlock m_byteBuffer;
- SecBlock<word16> m_head, m_prev;
- FixedSizeSecBlock<unsigned int, 286> m_literalCounts;
- FixedSizeSecBlock<unsigned int, 30> m_distanceCounts;
- SecBlock<EncodedMatch> m_matchBuffer;
- unsigned int m_matchBufferEnd, m_blockStart, m_blockLength;
-};
-
-NAMESPACE_END
-
-#endif