chore: initial commit (extracted from Launchers monorepo)

Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
2026-04-29 14:07:51 +02:00
commit d074cc7c07
3848 changed files with 1076682 additions and 0 deletions
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+// QuantumDecoder.h
+
+#ifndef ZIP7_INC_COMPRESS_QUANTUM_DECODER_H
+#define ZIP7_INC_COMPRESS_QUANTUM_DECODER_H
+
+#include "../../Common/MyTypes.h"
+
+namespace NCompress {
+namespace NQuantum {
+
+const unsigned kNumLitSelectorBits = 2;
+const unsigned kNumLitSelectors = 1 << kNumLitSelectorBits;
+const unsigned kNumLitSymbols = 1 << (8 - kNumLitSelectorBits);
+const unsigned kNumMatchSelectors = 3;
+const unsigned kNumSelectors = kNumLitSelectors + kNumMatchSelectors;
+const unsigned kNumSymbolsMax = kNumLitSymbols; // 64
+
+class CRangeDecoder;
+
+class CModelDecoder
+{
+  unsigned NumItems;
+  unsigned ReorderCount;
+  Byte Vals[kNumSymbolsMax];
+  UInt16 Freqs[kNumSymbolsMax + 1];
+public:
+  Byte _pad[64 - 10]; // for structure size alignment
+
+  void Init(unsigned numItems, unsigned startVal);
+  unsigned Decode(CRangeDecoder *rc);
+};
+
+
+class CDecoder
+{
+  UInt32 _winSize;
+  UInt32 _winPos;
+  UInt32 _winSize_allocated;
+  bool _overWin;
+  Byte *_win;
+  unsigned _numDictBits;
+
+  CModelDecoder m_Selector;
+  CModelDecoder m_Literals[kNumLitSelectors];
+  CModelDecoder m_PosSlot[kNumMatchSelectors];
+  CModelDecoder m_LenSlot;
+
+  void Init();
+  HRESULT CodeSpec(const Byte *inData, size_t inSize, UInt32 outSize);
+public:
+  HRESULT Code(const Byte *inData, size_t inSize, UInt32 outSize, bool keepHistory);
+  HRESULT SetParams(unsigned numDictBits);
+
+  CDecoder(): _win(NULL), _numDictBits(0) {}
+  const Byte * GetDataPtr() const { return _win + _winPos; }
+};
+
+}}
+
+#endif