1 files changed, 0 insertions, 156 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Compress/PpmdDecode.h b/src/libs/7zip/unix/CPP/7zip/Compress/PpmdDecode.h
deleted file mode 100644
index fe6927bf8..000000000
--- a/src/libs/7zip/unix/CPP/7zip/Compress/PpmdDecode.h
+++ /dev/null
@@ -1,156 +0,0 @@
-// PpmdDecode.h
-// 2009-05-30 : Igor Pavlov : Public domain
-// This code is based on Dmitry Shkarin's PPMdH code (public domain)
-
-#ifndef __COMPRESS_PPMD_DECODE_H
-#define __COMPRESS_PPMD_DECODE_H
-
-#include "PpmdContext.h"
-
-namespace NCompress {
-namespace NPpmd {
-
-class CRangeDecoderVirt
-{
-public:
-  virtual ~CRangeDecoderVirt() {}
-  virtual UInt32 GetThreshold(UInt32 total) = 0;
-  virtual void Decode(UInt32 start, UInt32 size) = 0;
-  virtual UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits) = 0;
-};
-
-typedef NRangeCoder::CDecoder CRangeDecoderMy;
-
-class CRangeDecoder:public CRangeDecoderVirt, public CRangeDecoderMy
-{
-  UInt32 GetThreshold(UInt32 total) { return CRangeDecoderMy::GetThreshold(total); }
-  void Decode(UInt32 start, UInt32 size) { CRangeDecoderMy::Decode(start, size); }
-  UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits) { return CRangeDecoderMy::DecodeBit(size0, numTotalBits); }
-};
-
-struct CDecodeInfo: public CInfo
-{
-  void DecodeBinSymbol(CRangeDecoderVirt *rangeDecoder)
-  {
-    PPM_CONTEXT::STATE& rs = MinContext->oneState();
-    UInt16& bs = GetBinSumm(rs, GetContextNoCheck(MinContext->Suffix)->NumStats);
-    if (rangeDecoder->DecodeBit(bs, TOT_BITS) == 0)
-    {
-      FoundState = &rs;
-      rs.Freq = (Byte)(rs.Freq + (rs.Freq < 128 ? 1: 0));
-      bs = (UInt16)(bs + INTERVAL - GET_MEAN(bs, PERIOD_BITS, 2));
-      PrevSuccess = 1;
-      RunLength++;
-    }
-    else
-    {
-      bs = (UInt16)(bs - GET_MEAN(bs, PERIOD_BITS, 2));
-      InitEsc = ExpEscape[bs >> 10];
-      NumMasked = 1;
-      CharMask[rs.Symbol] = EscCount;
-      PrevSuccess = 0;
-      FoundState = NULL;
-    }
-  }
-
-  void DecodeSymbol1(CRangeDecoderVirt *rangeDecoder)
-  {
-    PPM_CONTEXT::STATE* p = GetStateNoCheck(MinContext->Stats);
-    int i, count, hiCnt;
-    if ((count = rangeDecoder->GetThreshold(MinContext->SummFreq)) < (hiCnt = p->Freq))
-    {
-      PrevSuccess = (2 * hiCnt > MinContext->SummFreq);
-      RunLength += PrevSuccess;
-      rangeDecoder->Decode(0, p->Freq); // MinContext->SummFreq);
-      (FoundState = p)->Freq = (Byte)(hiCnt += 4);
-      MinContext->SummFreq += 4;
-      if (hiCnt > MAX_FREQ)
-        rescale();
-      return;
-    }
-    PrevSuccess = 0;
-    i = MinContext->NumStats - 1;
-    while ((hiCnt += (++p)->Freq) <= count)
-      if (--i == 0)
-      {
-        HiBitsFlag = HB2Flag[FoundState->Symbol];
-        rangeDecoder->Decode(hiCnt, MinContext->SummFreq - hiCnt); // , MinContext->SummFreq);
-        CharMask[p->Symbol] = EscCount;
-        i = (NumMasked = MinContext->NumStats)-1;
-        FoundState = NULL;
-        do { CharMask[(--p)->Symbol] = EscCount; } while ( --i );
-        return;
-      }
-    rangeDecoder->Decode(hiCnt - p->Freq, p->Freq); // , MinContext->SummFreq);
-    update1(p);
-  }
-
-
-  void DecodeSymbol2(CRangeDecoderVirt *rangeDecoder)
-  {
-    int count, hiCnt, i = MinContext->NumStats - NumMasked;
-    UInt32 freqSum;
-    SEE2_CONTEXT* psee2c = makeEscFreq2(i, freqSum);
-    PPM_CONTEXT::STATE* ps[256], ** pps = ps, * p = GetStateNoCheck(MinContext->Stats)-1;
-    hiCnt = 0;
-    do
-    {
-      do { p++; } while (CharMask[p->Symbol] == EscCount);
-      hiCnt += p->Freq;
-      *pps++ = p;
-    }
-    while ( --i );
-    
-    freqSum += hiCnt;
-    count = rangeDecoder->GetThreshold(freqSum);
-    
-    p = *(pps = ps);
-    if (count < hiCnt)
-    {
-      hiCnt = 0;
-      while ((hiCnt += p->Freq) <= count)
-        p=*++pps;
-      rangeDecoder->Decode(hiCnt - p->Freq, p->Freq); // , freqSum);
-      
-      psee2c->update();
-      update2(p);
-    }
-    else
-    {
-      rangeDecoder->Decode(hiCnt, freqSum - hiCnt); // , freqSum);
-      
-      i = MinContext->NumStats - NumMasked;
-      pps--;
-      do { CharMask[(*++pps)->Symbol] = EscCount; } while ( --i );
-      psee2c->Summ = (UInt16)(psee2c->Summ + freqSum);
-      NumMasked = MinContext->NumStats;
-    }
-  }
-
-  int DecodeSymbol(CRangeDecoderVirt *rangeDecoder)
-  {
-    if (MinContext->NumStats != 1)
-      DecodeSymbol1(rangeDecoder);
-    else
-      DecodeBinSymbol(rangeDecoder);
-    while ( !FoundState )
-    {
-      do
-      {
-        OrderFall++;
-        MinContext = GetContext(MinContext->Suffix);
-        if (MinContext == 0)
-          return -1;
-      }
-      while (MinContext->NumStats == NumMasked);
-      DecodeSymbol2(rangeDecoder);
-    }
-    Byte symbol = FoundState->Symbol;
-    NextContext();
-    return symbol;
-  }
-};
-
-}}
-
-#endif