1 files changed, 0 insertions, 185 deletions
diff --git a/src/libs/7zip/unix/C/Ppmd7Enc.c b/src/libs/7zip/unix/C/Ppmd7Enc.c
deleted file mode 100644
index 8247757d0..000000000
--- a/src/libs/7zip/unix/C/Ppmd7Enc.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/* Ppmd7Enc.c -- PPMdH Encoder
-2010-03-12 : Igor Pavlov : Public domain
-This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
-
-#include "Ppmd7.h"
-
-#define kTopValue (1 << 24)
-
-void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p)
-{
-  p->Low = 0;
-  p->Range = 0xFFFFFFFF;
-  p->Cache = 0;
-  p->CacheSize = 1;
-}
-
-static void RangeEnc_ShiftLow(CPpmd7z_RangeEnc *p)
-{
-  if ((UInt32)p->Low < (UInt32)0xFF000000 || (unsigned)(p->Low >> 32) != 0)
-  {
-    Byte temp = p->Cache;
-    do
-    {
-      p->Stream->Write(p->Stream, (Byte)(temp + (Byte)(p->Low >> 32)));
-      temp = 0xFF;
-    }
-    while(--p->CacheSize != 0);
-    p->Cache = (Byte)((UInt32)p->Low >> 24);
-  }
-  p->CacheSize++;
-  p->Low = (UInt32)p->Low << 8;
-}
-
-static void RangeEnc_Encode(CPpmd7z_RangeEnc *p, UInt32 start, UInt32 size, UInt32 total)
-{
-  p->Low += start * (p->Range /= total);
-  p->Range *= size;
-  while (p->Range < kTopValue)
-  {
-    p->Range <<= 8;
-    RangeEnc_ShiftLow(p);
-  }
-}
-
-static void RangeEnc_EncodeBit_0(CPpmd7z_RangeEnc *p, UInt32 size0)
-{
-  p->Range = (p->Range >> 14) * size0;
-  while (p->Range < kTopValue)
-  {
-    p->Range <<= 8;
-    RangeEnc_ShiftLow(p);
-  }
-}
-
-static void RangeEnc_EncodeBit_1(CPpmd7z_RangeEnc *p, UInt32 size0)
-{
-  UInt32 newBound = (p->Range >> 14) * size0;
-  p->Low += newBound;
-  p->Range -= newBound;
-  while (p->Range < kTopValue)
-  {
-    p->Range <<= 8;
-    RangeEnc_ShiftLow(p);
-  }
-}
-
-void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p)
-{
-  unsigned i;
-  for (i = 0; i < 5; i++)
-    RangeEnc_ShiftLow(p);
-}
-
-
-#define MASK(sym) ((signed char *)charMask)[sym]
-
-void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol)
-{
-  size_t charMask[256 / sizeof(size_t)];
-  if (p->MinContext->NumStats != 1)
-  {
-    CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
-    UInt32 sum;
-    unsigned i;
-    if (s->Symbol == symbol)
-    {
-      RangeEnc_Encode(rc, 0, s->Freq, p->MinContext->SummFreq);
-      p->FoundState = s;
-      Ppmd7_Update1_0(p);
-      return;
-    }
-    p->PrevSuccess = 0;
-    sum = s->Freq;
-    i = p->MinContext->NumStats - 1;
-    do
-    {
-      if ((++s)->Symbol == symbol)
-      {
-        RangeEnc_Encode(rc, sum, s->Freq, p->MinContext->SummFreq);
-        p->FoundState = s;
-        Ppmd7_Update1(p);
-        return;
-      }
-      sum += s->Freq;
-    }
-    while (--i);
-    
-    p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
-    PPMD_SetAllBitsIn256Bytes(charMask);
-    MASK(s->Symbol) = 0;
-    i = p->MinContext->NumStats - 1;
-    do { MASK((--s)->Symbol) = 0; } while (--i);
-    RangeEnc_Encode(rc, sum, p->MinContext->SummFreq - sum, p->MinContext->SummFreq);
-  }
-  else
-  {
-    UInt16 *prob = Ppmd7_GetBinSumm(p);
-    CPpmd_State *s = Ppmd7Context_OneState(p->MinContext);
-    if (s->Symbol == symbol)
-    {
-      RangeEnc_EncodeBit_0(rc, *prob);
-      *prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
-      p->FoundState = s;
-      Ppmd7_UpdateBin(p);
-      return;
-    }
-    else
-    {
-      RangeEnc_EncodeBit_1(rc, *prob);
-      *prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
-      p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
-      PPMD_SetAllBitsIn256Bytes(charMask);
-      MASK(s->Symbol) = 0;
-      p->PrevSuccess = 0;
-    }
-  }
-  for (;;)
-  {
-    UInt32 escFreq;
-    CPpmd_See *see;
-    CPpmd_State *s;
-    UInt32 sum;
-    unsigned i, numMasked = p->MinContext->NumStats;
-    do
-    {
-      p->OrderFall++;
-      if (!p->MinContext->Suffix)
-        return; /* EndMarker (symbol = -1) */
-      p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
-    }
-    while (p->MinContext->NumStats == numMasked);
-    
-    see = Ppmd7_MakeEscFreq(p, numMasked, &escFreq);
-    s = Ppmd7_GetStats(p, p->MinContext);
-    sum = 0;
-    i = p->MinContext->NumStats;
-    do
-    {
-      int cur = s->Symbol;
-      if (cur == symbol)
-      {
-        UInt32 low = sum;
-        CPpmd_State *s1 = s;
-        do
-        {
-          sum += (s->Freq & (int)(MASK(s->Symbol)));
-          s++;
-        }
-        while (--i);
-        RangeEnc_Encode(rc, low, s1->Freq, sum + escFreq);
-        Ppmd_See_Update(see);
-        p->FoundState = s1;
-        Ppmd7_Update2(p);
-        return;
-      }
-      sum += (s->Freq & (int)(MASK(cur)));
-      MASK(cur) = 0;
-      s++;
-    }
-    while (--i);
-    
-    RangeEnc_Encode(rc, sum, escFreq, sum + escFreq);
-    see->Summ = (UInt16)(see->Summ + sum + escFreq);
-  }
-}