From 0d0a3ca97f24b2e5eee65e634919f6616bdd4080 Mon Sep 17 00:00:00 2001
From: kervala <none@none>
Date: Sun, 21 Apr 2019 15:24:13 +0200
Subject: [PATCH] Changed: Updated LZMA SDK to version 19.00

--HG--
branch : develop
---
 code/ryzom/client/src/seven_zip/7zArcIn.cpp   |   8 +-
 code/ryzom/client/src/seven_zip/7zDec.cpp     |  12 +-
 code/ryzom/client/src/seven_zip/7zMain.cpp    |   9 +-
 code/ryzom/client/src/seven_zip/7zTypes.h     |   5 +-
 code/ryzom/client/src/seven_zip/7zVersion.h   |   8 +-
 code/ryzom/client/src/seven_zip/Bcj2Enc.cpp   |  10 +-
 .../ryzom/client/src/seven_zip/CMakeLists.txt |   2 +-
 code/ryzom/client/src/seven_zip/CpuArch.cpp   |  28 +-
 code/ryzom/client/src/seven_zip/CpuArch.h     |   9 +-
 code/ryzom/client/src/seven_zip/LzFind.cpp    | 164 ++--
 code/ryzom/client/src/seven_zip/Lzma2Dec.cpp  |  14 +-
 code/ryzom/client/src/seven_zip/Lzma2Enc.cpp  |   8 +-
 code/ryzom/client/src/seven_zip/Lzma86Enc.cpp |   8 +-
 code/ryzom/client/src/seven_zip/LzmaDec.cpp   |  32 +-
 code/ryzom/client/src/seven_zip/LzmaEnc.cpp   | 739 +++++++++++-------
 code/ryzom/client/src/seven_zip/Ppmd7.cpp     |   6 +-
 code/ryzom/client/src/seven_zip/Ppmd7.h       |   6 +-
 code/ryzom/client/src/seven_zip/Ppmd7Dec.cpp  |   4 +-
 code/ryzom/client/src/seven_zip/Precomp.h     |   1 +
 code/ryzom/client/src/seven_zip/Xz.h          |  20 +-
 code/ryzom/client/src/seven_zip/XzDec.cpp     |  87 +--
 code/ryzom/client/src/seven_zip/XzEnc.cpp     |   6 +-
 code/ryzom/client/src/seven_zip/XzIn.cpp      |   4 +-
 code/ryzom/client/src/seven_zip/seven_zip.cpp |  20 +-
 24 files changed, 739 insertions(+), 471 deletions(-)

diff --git a/code/ryzom/client/src/seven_zip/7zArcIn.cpp b/code/ryzom/client/src/seven_zip/7zArcIn.cpp
index e1b03d879..f74d0fad5 100644
--- a/code/ryzom/client/src/seven_zip/7zArcIn.cpp
+++ b/code/ryzom/client/src/seven_zip/7zArcIn.cpp
@@ -1,5 +1,5 @@
 /* 7zArcIn.c -- 7z Input functions
-2017-04-03 : Igor Pavlov : Public domain */
+2018-12-31 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -19,7 +19,7 @@
   { MY_ALLOC(Byte, to, size, alloc); memcpy(to, from, size); }
 
 #define MY_ALLOC_ZE_AND_CPY(to, size, from, alloc) \
-  { if ((size) == 0) p = NULL; else { MY_ALLOC_AND_CPY(to, size, from, alloc) } }
+  { if ((size) == 0) to = NULL; else { MY_ALLOC_AND_CPY(to, size, from, alloc) } }
 
 #define k7zMajorVersion 0
 
@@ -666,7 +666,7 @@ static SRes ReadUnpackInfo(CSzAr *p,
   MY_ALLOC(size_t, p->FoCodersOffsets, (size_t)numFolders + 1, alloc);
   MY_ALLOC(UInt32, p->FoStartPackStreamIndex, (size_t)numFolders + 1, alloc);
   MY_ALLOC(UInt32, p->FoToCoderUnpackSizes, (size_t)numFolders + 1, alloc);
-  MY_ALLOC(Byte, p->FoToMainUnpackSizeIndex, (size_t)numFolders, alloc);
+  MY_ALLOC_ZE(Byte, p->FoToMainUnpackSizeIndex, (size_t)numFolders, alloc);
   
   startBufPtr = sd.Data;
   
@@ -1744,7 +1744,7 @@ size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex)
 
 UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16 *dest)
 {
-  Bool needSlash;
+  BoolInt needSlash;
   if (!p->FileNameOffsets)
   {
     *(--dest) = 0;
diff --git a/code/ryzom/client/src/seven_zip/7zDec.cpp b/code/ryzom/client/src/seven_zip/7zDec.cpp
index 1ddde0bcb..7c4635211 100644
--- a/code/ryzom/client/src/seven_zip/7zDec.cpp
+++ b/code/ryzom/client/src/seven_zip/7zDec.cpp
@@ -1,5 +1,5 @@
 /* 7zDec.c -- Decoding from 7z folder
-2017-04-03 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -44,7 +44,7 @@ typedef struct
   const Byte *end;
   const Byte *begin;
   UInt64 processed;
-  Bool extra;
+  BoolInt extra;
   SRes res;
   const ILookInStream *inStream;
 } CByteInToLook;
@@ -156,7 +156,7 @@ static SRes SzDecodeLzma(const Byte *props, unsigned propsSize, UInt64 inSize, I
     {
       SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos;
       ELzmaStatus status;
-      res = LzmaDec_DecodeToDic(&state, outSize, (const Byte*)inBuf, &inProcessed, LZMA_FINISH_END, &status);
+      res = LzmaDec_DecodeToDic(&state, outSize, (const Byte *)inBuf, &inProcessed, LZMA_FINISH_END, &status);
       lookahead -= inProcessed;
       inSize -= inProcessed;
       if (res != SZ_OK)
@@ -218,7 +218,7 @@ static SRes SzDecodeLzma2(const Byte *props, unsigned propsSize, UInt64 inSize,
     {
       SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos;
       ELzmaStatus status;
-      res = Lzma2Dec_DecodeToDic(&state, outSize, (const Byte*)inBuf, &inProcessed, LZMA_FINISH_END, &status);
+      res = Lzma2Dec_DecodeToDic(&state, outSize, (const Byte *)inBuf, &inProcessed, LZMA_FINISH_END, &status);
       lookahead -= inProcessed;
       inSize -= inProcessed;
       if (res != SZ_OK)
@@ -269,7 +269,7 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
   return SZ_OK;
 }
 
-static Bool IS_MAIN_METHOD(UInt32 m)
+static BoolInt IS_MAIN_METHOD(UInt32 m)
 {
   switch (m)
   {
@@ -286,7 +286,7 @@ static Bool IS_MAIN_METHOD(UInt32 m)
   return False;
 }
 
-static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)
+static BoolInt IS_SUPPORTED_CODER(const CSzCoderInfo *c)
 {
   return
       c->NumStreams == 1
diff --git a/code/ryzom/client/src/seven_zip/7zMain.cpp b/code/ryzom/client/src/seven_zip/7zMain.cpp
index 0ec9a8ada..59ecd2885 100644
--- a/code/ryzom/client/src/seven_zip/7zMain.cpp
+++ b/code/ryzom/client/src/seven_zip/7zMain.cpp
@@ -1,5 +1,5 @@
 /* 7zMain.c - Test application for 7z Decoder
-2018-04-19 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -227,7 +227,7 @@ static WRes MyCreateDir(const UInt16 *name)
 static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)
 {
   #ifdef USE_WINDOWS_FILE
-  return OutFile_OpenW(p, (const WCHAR *)name);
+  return OutFile_OpenW(p, (LPCWSTR)name);
   #else
   CBuf buf;
   WRes res;
@@ -239,6 +239,7 @@ static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)
   #endif
 }
 
+
 static SRes PrintString(const UInt16 *s)
 {
   CBuf buf;
@@ -353,7 +354,7 @@ static void PrintError(char *s)
   PrintLF();
 }
 
-static void GetAttribString(UInt32 wa, Bool isDir, char *s)
+static void GetAttribString(UInt32 wa, BoolInt isDir, char *s)
 {
   #ifdef USE_WINDOWS_FILE
   s[0] = (char)(((wa & FILE_ATTRIBUTE_DIRECTORY) != 0 || isDir) ? 'D' : '.');
@@ -429,7 +430,7 @@ int MY_CDECL main(int numargs, char *args[])
   res = SZ_OK;
 
   {
-    lookStream.buf = (Byte*)ISzAlloc_Alloc(&allocImp, kInputBufSize);
+    lookStream.buf = (Byte *)ISzAlloc_Alloc(&allocImp, kInputBufSize);
     if (!lookStream.buf)
       res = SZ_ERROR_MEM;
     else
diff --git a/code/ryzom/client/src/seven_zip/7zTypes.h b/code/ryzom/client/src/seven_zip/7zTypes.h
index 29244b23e..65b3af63c 100644
--- a/code/ryzom/client/src/seven_zip/7zTypes.h
+++ b/code/ryzom/client/src/seven_zip/7zTypes.h
@@ -1,5 +1,5 @@
 /* 7zTypes.h -- Basic types
-2017-07-17 : Igor Pavlov : Public domain */
+2018-08-04 : Igor Pavlov : Public domain */
 
 #ifndef __7Z_TYPES_H
 #define __7Z_TYPES_H
@@ -103,7 +103,8 @@ typedef UInt32 SizeT;
 typedef size_t SizeT;
 #endif
 
-typedef int Bool;
+typedef int BoolInt;
+/* typedef BoolInt Bool; */
 #define True 1
 #define False 0
 
diff --git a/code/ryzom/client/src/seven_zip/7zVersion.h b/code/ryzom/client/src/seven_zip/7zVersion.h
index f3fb623aa..c176823a4 100644
--- a/code/ryzom/client/src/seven_zip/7zVersion.h
+++ b/code/ryzom/client/src/seven_zip/7zVersion.h
@@ -1,7 +1,7 @@
-#define MY_VER_MAJOR 18
-#define MY_VER_MINOR 05
+#define MY_VER_MAJOR 19
+#define MY_VER_MINOR 00
 #define MY_VER_BUILD 0
-#define MY_VERSION_NUMBERS "18.05"
+#define MY_VERSION_NUMBERS "19.00"
 #define MY_VERSION MY_VERSION_NUMBERS
 
 #ifdef MY_CPU_NAME
@@ -10,7 +10,7 @@
   #define MY_VERSION_CPU MY_VERSION
 #endif
 
-#define MY_DATE "2018-04-30"
+#define MY_DATE "2019-02-21"
 #undef MY_COPYRIGHT
 #undef MY_VERSION_COPYRIGHT_DATE
 #define MY_AUTHOR_NAME "Igor Pavlov"
diff --git a/code/ryzom/client/src/seven_zip/Bcj2Enc.cpp b/code/ryzom/client/src/seven_zip/Bcj2Enc.cpp
index 0b76a7c2c..bfbeb8e49 100644
--- a/code/ryzom/client/src/seven_zip/Bcj2Enc.cpp
+++ b/code/ryzom/client/src/seven_zip/Bcj2Enc.cpp
@@ -1,5 +1,5 @@
 /* Bcj2Enc.c -- BCJ2 Encoder (Converter for x86 code)
-2017-04-28 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -52,7 +52,7 @@ void Bcj2Enc_Init(CBcj2Enc *p)
     p->probs[i] = kBitModelTotal >> 1;
 }
 
-static Bool MY_FAST_CALL RangeEnc_ShiftLow(CBcj2Enc *p)
+static BoolInt MY_FAST_CALL RangeEnc_ShiftLow(CBcj2Enc *p)
 {
   if ((UInt32)p->low < (UInt32)0xFF000000 || (UInt32)(p->low >> 32) != 0)
   {
@@ -165,7 +165,7 @@ static void Bcj2Enc_Encode_2(CBcj2Enc *p)
  
         {
           Byte context = (Byte)(num == 0 ? p->prevByte : src[-1]);
-          Bool needConvert;
+          BoolInt needConvert;
 
           p->bufs[BCJ2_STREAM_MAIN] = dest + 1;
           p->ip += (UInt32)num + 1;
@@ -253,7 +253,7 @@ void Bcj2Enc_Encode(CBcj2Enc *p)
     {
       const Byte *src = p->src;
       const Byte *srcLim = p->srcLim;
-      unsigned finishMode = p->finishMode;
+      EBcj2Enc_FinishMode finishMode = p->finishMode;
       
       p->src = p->temp;
       p->srcLim = p->temp + p->tempPos;
@@ -274,7 +274,7 @@ void Bcj2Enc_Encode(CBcj2Enc *p)
       
         p->src = src;
         p->srcLim = srcLim;
-        p->finishMode = (EBcj2Enc_FinishMode)finishMode;
+        p->finishMode = finishMode;
         
         if (p->state != BCJ2_ENC_STATE_ORIG || src == srcLim)
           return;
diff --git a/code/ryzom/client/src/seven_zip/CMakeLists.txt b/code/ryzom/client/src/seven_zip/CMakeLists.txt
index 625544edb..d62750e17 100644
--- a/code/ryzom/client/src/seven_zip/CMakeLists.txt
+++ b/code/ryzom/client/src/seven_zip/CMakeLists.txt
@@ -5,7 +5,7 @@ FILE(GLOB LIB_SRC *.cpp *.h)
 LIST(REMOVE_ITEM LIB_SRC ${CMAKE_CURRENT_SOURCE_DIR}/7zMain.cpp)
 
 NL_TARGET_LIB(ryzom_sevenzip ${LIB_SRC})
-TARGET_LINK_LIBRARIES(ryzom_sevenzip nelmisc)
+TARGET_LINK_LIBRARIES(ryzom_sevenzip ${NELMISC_LIBRARIES})
 NL_DEFAULT_PROPS(ryzom_sevenzip "Ryzom, Library: Seven Zip")
 NL_ADD_RUNTIME_FLAGS(ryzom_sevenzip)
 NL_ADD_LIB_SUFFIX(ryzom_sevenzip)
diff --git a/code/ryzom/client/src/seven_zip/CpuArch.cpp b/code/ryzom/client/src/seven_zip/CpuArch.cpp
index 554ffa4fc..02e482e08 100644
--- a/code/ryzom/client/src/seven_zip/CpuArch.cpp
+++ b/code/ryzom/client/src/seven_zip/CpuArch.cpp
@@ -1,5 +1,5 @@
 /* CpuArch.c -- CPU specific code
-2016-02-25: Igor Pavlov : Public domain */
+2018-02-18: Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -115,7 +115,7 @@ void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
   #endif
 }
 
-Bool x86cpuid_CheckAndRead(Cx86cpuid *p)
+BoolInt x86cpuid_CheckAndRead(Cx86cpuid *p)
 {
   CHECK_CPUID_IS_SUPPORTED
   MyCPUID(0, &p->maxFunc, &p->vendor[0], &p->vendor[2], &p->vendor[1]);
@@ -144,7 +144,7 @@ int x86cpuid_GetFirm(const Cx86cpuid *p)
   return -1;
 }
 
-Bool CPU_Is_InOrder()
+BoolInt CPU_Is_InOrder()
 {
   Cx86cpuid p;
   int firm;
@@ -175,7 +175,7 @@ Bool CPU_Is_InOrder()
 
 #if !defined(MY_CPU_AMD64) && defined(_WIN32)
 #include <windows.h>
-static Bool CPU_Sys_Is_SSE_Supported()
+static BoolInt CPU_Sys_Is_SSE_Supported()
 {
   OSVERSIONINFO vi;
   vi.dwOSVersionInfoSize = sizeof(vi);
@@ -188,7 +188,7 @@ static Bool CPU_Sys_Is_SSE_Supported()
 #define CHECK_SYS_SSE_SUPPORT
 #endif
 
-Bool CPU_Is_Aes_Supported()
+BoolInt CPU_Is_Aes_Supported()
 {
   Cx86cpuid p;
   CHECK_SYS_SSE_SUPPORT
@@ -197,4 +197,22 @@ Bool CPU_Is_Aes_Supported()
   return (p.c >> 25) & 1;
 }
 
+BoolInt CPU_IsSupported_PageGB()
+{
+  Cx86cpuid cpuid;
+  if (!x86cpuid_CheckAndRead(&cpuid))
+    return False;
+  {
+    UInt32 d[4] = { 0 };
+    MyCPUID(0x80000000, &d[0], &d[1], &d[2], &d[3]);
+    if (d[0] < 0x80000001)
+      return False;
+  }
+  {
+    UInt32 d[4] = { 0 };
+    MyCPUID(0x80000001, &d[0], &d[1], &d[2], &d[3]);
+    return (d[3] >> 26) & 1;
+  }
+}
+
 #endif
diff --git a/code/ryzom/client/src/seven_zip/CpuArch.h b/code/ryzom/client/src/seven_zip/CpuArch.h
index 056116dde..bd4293880 100644
--- a/code/ryzom/client/src/seven_zip/CpuArch.h
+++ b/code/ryzom/client/src/seven_zip/CpuArch.h
@@ -1,5 +1,5 @@
 /* CpuArch.h -- CPU specific code
-2017-09-04 : Igor Pavlov : Public domain */
+2018-02-18 : Igor Pavlov : Public domain */
 
 #ifndef __CPU_ARCH_H
 #define __CPU_ARCH_H
@@ -318,15 +318,16 @@ enum
 
 void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d);
 
-Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
+BoolInt x86cpuid_CheckAndRead(Cx86cpuid *p);
 int x86cpuid_GetFirm(const Cx86cpuid *p);
 
 #define x86cpuid_GetFamily(ver) (((ver >> 16) & 0xFF0) | ((ver >> 8) & 0xF))
 #define x86cpuid_GetModel(ver)  (((ver >> 12) &  0xF0) | ((ver >> 4) & 0xF))
 #define x86cpuid_GetStepping(ver) (ver & 0xF)
 
-Bool CPU_Is_InOrder();
-Bool CPU_Is_Aes_Supported();
+BoolInt CPU_Is_InOrder();
+BoolInt CPU_Is_Aes_Supported();
+BoolInt CPU_IsSupported_PageGB();
 
 #endif
 
diff --git a/code/ryzom/client/src/seven_zip/LzFind.cpp b/code/ryzom/client/src/seven_zip/LzFind.cpp
index 18ef49dca..df55e86c1 100644
--- a/code/ryzom/client/src/seven_zip/LzFind.cpp
+++ b/code/ryzom/client/src/seven_zip/LzFind.cpp
@@ -1,5 +1,5 @@
 /* LzFind.c -- Match finder for LZ algorithms
-2017-06-10 : Igor Pavlov : Public domain */
+2018-07-08 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -138,7 +138,7 @@ static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
 
 void MatchFinder_Construct(CMatchFinder *p)
 {
-  UInt32 i;
+  unsigned i;
   p->bufferBase = NULL;
   p->directInput = 0;
   p->hash = NULL;
@@ -147,7 +147,7 @@ void MatchFinder_Construct(CMatchFinder *p)
 
   for (i = 0; i < 256; i++)
   {
-    UInt32 r = i;
+    UInt32 r = (UInt32)i;
     unsigned j;
     for (j = 0; j < 8; j++)
       r = (r >> 1) ^ (kCrcPoly & ((UInt32)0 - (r & 1)));
@@ -368,6 +368,8 @@ static void MatchFinder_Normalize(CMatchFinder *p)
   MatchFinder_ReduceOffsets(p, subValue);
 }
 
+
+MY_NO_INLINE
 static void MatchFinder_CheckLimits(CMatchFinder *p)
 {
   if (p->pos == kMaxValForNormalize)
@@ -379,10 +381,16 @@ static void MatchFinder_CheckLimits(CMatchFinder *p)
   MatchFinder_SetLimits(p);
 }
 
-static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
+
+/*
+  (lenLimit > maxLen)
+*/
+MY_FORCE_INLINE
+static UInt32 * Hc_GetMatchesSpec(unsigned lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
     UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
-    UInt32 *distances, UInt32 maxLen)
+    UInt32 *distances, unsigned maxLen)
 {
+  /*
   son[_cyclicBufferPos] = curMatch;
   for (;;)
   {
@@ -400,7 +408,8 @@ static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos,
             break;
         if (maxLen < len)
         {
-          *distances++ = maxLen = len;
+          maxLen = len;
+          *distances++ = len;
           *distances++ = delta - 1;
           if (len == lenLimit)
             return distances;
@@ -408,15 +417,58 @@ static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos,
       }
     }
   }
+  */
+
+  const Byte *lim = cur + lenLimit;
+  son[_cyclicBufferPos] = curMatch;
+  do
+  {
+    UInt32 delta = pos - curMatch;
+    if (delta >= _cyclicBufferSize)
+      break;
+    {
+      ptrdiff_t diff;
+      curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
+      diff = (ptrdiff_t)0 - delta;
+      if (cur[maxLen] == cur[maxLen + diff])
+      {
+        const Byte *c = cur;
+        while (*c == c[diff])
+        {
+          if (++c == lim)
+          {
+            distances[0] = (UInt32)(lim - cur);
+            distances[1] = delta - 1;
+            return distances + 2;
+          }
+        }
+        {
+          unsigned len = (unsigned)(c - cur);
+          if (maxLen < len)
+          {
+            maxLen = len;
+            distances[0] = (UInt32)len;
+            distances[1] = delta - 1;
+            distances += 2;
+          }
+        }
+      }
+    }
+  }
+  while (--cutValue);
+  
+  return distances;
 }
 
+
+MY_FORCE_INLINE
 UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
     UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
     UInt32 *distances, UInt32 maxLen)
 {
-  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-  UInt32 len0 = 0, len1 = 0;
+  CLzRef *ptr0 = son + ((size_t)_cyclicBufferPos << 1) + 1;
+  CLzRef *ptr1 = son + ((size_t)_cyclicBufferPos << 1);
+  unsigned len0 = 0, len1 = 0;
   for (;;)
   {
     UInt32 delta = pos - curMatch;
@@ -426,9 +478,10 @@ UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byt
       return distances;
     }
     {
-      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
+      CLzRef *pair = son + ((size_t)(_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
       const Byte *pb = cur - delta;
-      UInt32 len = (len0 < len1 ? len0 : len1);
+      unsigned len = (len0 < len1 ? len0 : len1);
+      UInt32 pair0 = pair[0];
       if (pb[len] == cur[len])
       {
         if (++len != lenLimit && pb[len] == cur[len])
@@ -437,11 +490,12 @@ UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byt
               break;
         if (maxLen < len)
         {
-          *distances++ = maxLen = len;
+          maxLen = (UInt32)len;
+          *distances++ = (UInt32)len;
           *distances++ = delta - 1;
           if (len == lenLimit)
           {
-            *ptr1 = pair[0];
+            *ptr1 = pair0;
             *ptr0 = pair[1];
             return distances;
           }
@@ -468,9 +522,9 @@ UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byt
 static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
     UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue)
 {
-  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-  UInt32 len0 = 0, len1 = 0;
+  CLzRef *ptr0 = son + ((size_t)_cyclicBufferPos << 1) + 1;
+  CLzRef *ptr1 = son + ((size_t)_cyclicBufferPos << 1);
+  unsigned len0 = 0, len1 = 0;
   for (;;)
   {
     UInt32 delta = pos - curMatch;
@@ -480,9 +534,9 @@ static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const
       return;
     }
     {
-      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
+      CLzRef *pair = son + ((size_t)(_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
       const Byte *pb = cur - delta;
-      UInt32 len = (len0 < len1 ? len0 : len1);
+      unsigned len = (len0 < len1 ? len0 : len1);
       if (pb[len] == cur[len])
       {
         while (++len != lenLimit)
@@ -520,13 +574,13 @@ static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const
   p->buffer++; \
   if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p);
 
-#define MOVE_POS_RET MOVE_POS return offset;
+#define MOVE_POS_RET MOVE_POS return (UInt32)offset;
 
 static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
 
 #define GET_MATCHES_HEADER2(minLen, ret_op) \
-  UInt32 lenLimit; UInt32 hv; const Byte *cur; UInt32 curMatch; \
-  lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
+  unsigned lenLimit; UInt32 hv; const Byte *cur; UInt32 curMatch; \
+  lenLimit = (unsigned)p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
   cur = p->buffer;
 
 #define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
@@ -535,22 +589,22 @@ static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
 #define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
 
 #define GET_MATCHES_FOOTER(offset, maxLen) \
-  offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \
-  distances + offset, maxLen) - distances); MOVE_POS_RET;
+  offset = (unsigned)(GetMatchesSpec1((UInt32)lenLimit, curMatch, MF_PARAMS(p), \
+  distances + offset, (UInt32)maxLen) - distances); MOVE_POS_RET;
 
 #define SKIP_FOOTER \
-  SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
+  SkipMatchesSpec((UInt32)lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
 
 #define UPDATE_maxLen { \
     ptrdiff_t diff = (ptrdiff_t)0 - d2; \
     const Byte *c = cur + maxLen; \
     const Byte *lim = cur + lenLimit; \
     for (; c != lim; c++) if (*(c + diff) != *c) break; \
-    maxLen = (UInt32)(c - cur); }
+    maxLen = (unsigned)(c - cur); }
 
 static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 offset;
+  unsigned offset;
   GET_MATCHES_HEADER(2)
   HASH2_CALC;
   curMatch = p->hash[hv];
@@ -561,7 +615,7 @@ static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
 UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 offset;
+  unsigned offset;
   GET_MATCHES_HEADER(3)
   HASH_ZIP_CALC;
   curMatch = p->hash[hv];
@@ -572,7 +626,8 @@ UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
 static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 h2, d2, maxLen, offset, pos;
+  UInt32 h2, d2, pos;
+  unsigned maxLen, offset;
   UInt32 *hash;
   GET_MATCHES_HEADER(3)
 
@@ -594,12 +649,12 @@ static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
     UPDATE_maxLen
-    distances[0] = maxLen;
+    distances[0] = (UInt32)maxLen;
     distances[1] = d2 - 1;
     offset = 2;
     if (maxLen == lenLimit)
     {
-      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
+      SkipMatchesSpec((UInt32)lenLimit, curMatch, MF_PARAMS(p));
       MOVE_POS_RET;
     }
   }
@@ -609,7 +664,8 @@ static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
 static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 h2, h3, d2, d3, maxLen, offset, pos;
+  UInt32 h2, h3, d2, d3, pos;
+  unsigned maxLen, offset;
   UInt32 *hash;
   GET_MATCHES_HEADER(4)
 
@@ -618,12 +674,12 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   hash = p->hash;
   pos = p->pos;
 
-  d2 = pos - hash[                h2];
+  d2 = pos - hash                  [h2];
   d3 = pos - (hash + kFix3HashSize)[h3];
 
   curMatch = (hash + kFix4HashSize)[hv];
 
-  hash[                h2] = pos;
+  hash                  [h2] = pos;
   (hash + kFix3HashSize)[h3] = pos;
   (hash + kFix4HashSize)[hv] = pos;
 
@@ -632,7 +688,8 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   
   if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
-    distances[0] = maxLen = 2;
+    maxLen = 2;
+    distances[0] = 2;
     distances[1] = d2 - 1;
     offset = 2;
   }
@@ -648,10 +705,10 @@ static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[(size_t)offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = (UInt32)maxLen;
     if (maxLen == lenLimit)
     {
-      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
+      SkipMatchesSpec((UInt32)lenLimit, curMatch, MF_PARAMS(p));
       MOVE_POS_RET;
     }
   }
@@ -674,13 +731,13 @@ static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   hash = p->hash;
   pos = p->pos;
 
-  d2 = pos - hash[                h2];
+  d2 = pos - hash                  [h2];
   d3 = pos - (hash + kFix3HashSize)[h3];
   d4 = pos - (hash + kFix4HashSize)[h4];
 
   curMatch = (hash + kFix5HashSize)[hv];
 
-  hash[                h2] = pos;
+  hash                  [h2] = pos;
   (hash + kFix3HashSize)[h3] = pos;
   (hash + kFix4HashSize)[h4] = pos;
   (hash + kFix5HashSize)[hv] = pos;
@@ -741,7 +798,8 @@ static UInt32 Bt5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
 static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 h2, h3, d2, d3, maxLen, offset, pos;
+  UInt32 h2, h3, d2, d3, pos;
+  unsigned maxLen, offset;
   UInt32 *hash;
   GET_MATCHES_HEADER(4)
 
@@ -750,12 +808,11 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   hash = p->hash;
   pos = p->pos;
   
-  d2 = pos - hash[                h2];
+  d2 = pos - hash                  [h2];
   d3 = pos - (hash + kFix3HashSize)[h3];
-  
   curMatch = (hash + kFix4HashSize)[hv];
 
-  hash[                h2] = pos;
+  hash                  [h2] = pos;
   (hash + kFix3HashSize)[h3] = pos;
   (hash + kFix4HashSize)[hv] = pos;
 
@@ -764,7 +821,8 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
   if (d2 < p->cyclicBufferSize && *(cur - d2) == *cur)
   {
-    distances[0] = maxLen = 2;
+    maxLen = 2;
+    distances[0] = 2;
     distances[1] = d2 - 1;
     offset = 2;
   }
@@ -780,7 +838,7 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     UPDATE_maxLen
-    distances[(size_t)offset - 2] = maxLen;
+    distances[(size_t)offset - 2] = (UInt32)maxLen;
     if (maxLen == lenLimit)
     {
       p->son[p->cyclicBufferPos] = curMatch;
@@ -791,7 +849,7 @@ static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (maxLen < 3)
     maxLen = 3;
 
-  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
+  offset = (unsigned)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
       distances + offset, maxLen) - (distances));
   MOVE_POS_RET
 }
@@ -808,13 +866,13 @@ static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   hash = p->hash;
   pos = p->pos;
   
-  d2 = pos - hash[                h2];
+  d2 = pos - hash                  [h2];
   d3 = pos - (hash + kFix3HashSize)[h3];
   d4 = pos - (hash + kFix4HashSize)[h4];
 
   curMatch = (hash + kFix5HashSize)[hv];
 
-  hash[                h2] = pos;
+  hash                  [h2] = pos;
   (hash + kFix3HashSize)[h3] = pos;
   (hash + kFix4HashSize)[h4] = pos;
   (hash + kFix5HashSize)[hv] = pos;
@@ -877,12 +935,12 @@ static UInt32 Hc5_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 
 UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
-  UInt32 offset;
+  unsigned offset;
   GET_MATCHES_HEADER(3)
   HASH_ZIP_CALC;
   curMatch = p->hash[hv];
   p->hash[hv] = p->pos;
-  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
+  offset = (unsigned)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
       distances, 2) - (distances));
   MOVE_POS_RET
 }
@@ -940,7 +998,7 @@ static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     HASH4_CALC;
     hash = p->hash;
     curMatch = (hash + kFix4HashSize)[hv];
-    hash[                h2] =
+    hash                  [h2] =
     (hash + kFix3HashSize)[h3] =
     (hash + kFix4HashSize)[hv] = p->pos;
     SKIP_FOOTER
@@ -959,7 +1017,7 @@ static void Bt5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     HASH5_CALC;
     hash = p->hash;
     curMatch = (hash + kFix5HashSize)[hv];
-    hash[                h2] =
+    hash                  [h2] =
     (hash + kFix3HashSize)[h3] =
     (hash + kFix4HashSize)[h4] =
     (hash + kFix5HashSize)[hv] = p->pos;
@@ -979,7 +1037,7 @@ static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     HASH4_CALC;
     hash = p->hash;
     curMatch = (hash + kFix4HashSize)[hv];
-    hash[                h2] =
+    hash                  [h2] =
     (hash + kFix3HashSize)[h3] =
     (hash + kFix4HashSize)[hv] = p->pos;
     p->son[p->cyclicBufferPos] = curMatch;
@@ -999,7 +1057,7 @@ static void Hc5_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
     HASH5_CALC;
     hash = p->hash;
     curMatch = hash + kFix5HashSize)[hv];
-    hash[                h2] =
+    hash                  [h2] =
     (hash + kFix3HashSize)[h3] =
     (hash + kFix4HashSize)[h4] =
     (hash + kFix5HashSize)[hv] = p->pos;
diff --git a/code/ryzom/client/src/seven_zip/Lzma2Dec.cpp b/code/ryzom/client/src/seven_zip/Lzma2Dec.cpp
index 7904bb68d..4e138a4ae 100644
--- a/code/ryzom/client/src/seven_zip/Lzma2Dec.cpp
+++ b/code/ryzom/client/src/seven_zip/Lzma2Dec.cpp
@@ -1,5 +1,5 @@
 /* Lzma2Dec.c -- LZMA2 Decoder
-2018-02-19 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 /* #define SHOW_DEBUG_INFO */
 
@@ -169,7 +169,7 @@ static void LzmaDec_UpdateWithUncompressed(CLzmaDec *p, const Byte *src, SizeT s
   p->processedPos += (UInt32)size;
 }
 
-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState);
+void LzmaDec_InitDicAndState(CLzmaDec *p, BoolInt initDic, BoolInt initState);
 
 
 SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
@@ -232,7 +232,7 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
 
         if (p->state == LZMA2_STATE_DATA)
         {
-          Bool initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC);
+          BoolInt initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC);
           LzmaDec_InitDicAndState(&p->decoder, initDic, False);
         }
 
@@ -254,8 +254,8 @@ SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
 
         if (p->state == LZMA2_STATE_DATA)
         {
-          Bool initDic = (p->control >= 0xE0);
-          Bool initState = (p->control >= 0xA0);
+          BoolInt initDic = (p->control >= 0xE0);
+          BoolInt initState = (p->control >= 0xA0);
           LzmaDec_InitDicAndState(&p->decoder, initDic, initState);
           p->state = LZMA2_STATE_DATA_CONT;
         }
@@ -331,7 +331,7 @@ ELzma2ParseStatus Lzma2Dec_Parse(CLzma2Dec *p,
       {
         // if (p->decoder.dicPos != 0)
         if (p->control == LZMA2_CONTROL_COPY_RESET_DIC || p->control >= 0xE0)
-          return (ELzma2ParseStatus)LZMA2_PARSE_STATUS_NEW_BLOCK;
+          return LZMA2_PARSE_STATUS_NEW_BLOCK;
         // if (outSize == 0) return LZMA_STATUS_NOT_FINISHED;
       }
 
@@ -348,7 +348,7 @@ ELzma2ParseStatus Lzma2Dec_Parse(CLzma2Dec *p,
       }
 
       if (p->state == LZMA2_STATE_DATA)
-        return (ELzma2ParseStatus)LZMA2_PARSE_STATUS_NEW_CHUNK;
+        return LZMA2_PARSE_STATUS_NEW_CHUNK;
 
       continue;
     }
diff --git a/code/ryzom/client/src/seven_zip/Lzma2Enc.cpp b/code/ryzom/client/src/seven_zip/Lzma2Enc.cpp
index 4b06d9111..9af0622b0 100644
--- a/code/ryzom/client/src/seven_zip/Lzma2Enc.cpp
+++ b/code/ryzom/client/src/seven_zip/Lzma2Enc.cpp
@@ -1,5 +1,5 @@
 /* Lzma2Enc.c -- LZMA2 Encoder
-2018-04-27 : Igor Pavlov : Public domain */
+2018-07-04 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -115,7 +115,7 @@ SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, UInt32 k
     ISzAllocPtr alloc, ISzAllocPtr allocBig);
 SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
     UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig);
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, BoolInt reInit,
     Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize);
 const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp);
 void LzmaEnc_Finish(CLzmaEncHandle pp);
@@ -133,7 +133,7 @@ static SRes Lzma2EncInt_EncodeSubblock(CLzma2EncInt *p, Byte *outBuf,
   size_t packSize = packSizeLimit;
   UInt32 unpackSize = LZMA2_UNPACK_SIZE_MAX;
   unsigned lzHeaderSize = 5 + (p->needInitProp ? 1 : 0);
-  Bool useCopyBlock;
+  BoolInt useCopyBlock;
   SRes res;
 
   *packSizeRes = 0;
@@ -373,7 +373,7 @@ typedef struct
 
   size_t outBufSize;   /* size of allocated outBufs[i] */
   size_t outBufsDataSizes[MTCODER__BLOCKS_MAX];
-  Bool mtCoder_WasConstructed;
+  BoolInt mtCoder_WasConstructed;
   CMtCoder mtCoder;
   Byte *outBufs[MTCODER__BLOCKS_MAX];
 
diff --git a/code/ryzom/client/src/seven_zip/Lzma86Enc.cpp b/code/ryzom/client/src/seven_zip/Lzma86Enc.cpp
index a15b58d6c..2617bab8e 100644
--- a/code/ryzom/client/src/seven_zip/Lzma86Enc.cpp
+++ b/code/ryzom/client/src/seven_zip/Lzma86Enc.cpp
@@ -1,5 +1,5 @@
 /* Lzma86Enc.c -- LZMA + x86 (BCJ) Filter Encoder
-2016-05-16 : Igor Pavlov : Public domain */
+2018-07-04 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -18,7 +18,7 @@ int Lzma86_Encode(Byte *dest, size_t *destLen, const Byte *src, size_t srcLen,
 {
   size_t outSize2 = *destLen;
   Byte *filteredStream;
-  Bool useFilter;
+  BoolInt useFilter;
   int mainResult = SZ_ERROR_OUTPUT_EOF;
   CLzmaEncProps props;
   LzmaEncProps_Init(&props);
@@ -56,7 +56,7 @@ int Lzma86_Encode(Byte *dest, size_t *destLen, const Byte *src, size_t srcLen,
 
   {
     size_t minSize = 0;
-    Bool bestIsFiltered = False;
+    BoolInt bestIsFiltered = False;
 
     /* passes for SZ_FILTER_AUTO:
         0 - BCJ + LZMA
@@ -71,7 +71,7 @@ int Lzma86_Encode(Byte *dest, size_t *destLen, const Byte *src, size_t srcLen,
       size_t outSizeProcessed = outSize2 - LZMA86_HEADER_SIZE;
       size_t outPropsSize = 5;
       SRes curRes;
-      Bool curModeIsFiltered = (numPasses > 1 && i == numPasses - 1);
+      BoolInt curModeIsFiltered = (numPasses > 1 && i == numPasses - 1);
       if (curModeIsFiltered && !bestIsFiltered)
         break;
       if (useFilter && i == 0)
diff --git a/code/ryzom/client/src/seven_zip/LzmaDec.cpp b/code/ryzom/client/src/seven_zip/LzmaDec.cpp
index cccb93267..ba3e1dd50 100644
--- a/code/ryzom/client/src/seven_zip/LzmaDec.cpp
+++ b/code/ryzom/client/src/seven_zip/LzmaDec.cpp
@@ -1,13 +1,13 @@
 /* LzmaDec.c -- LZMA Decoder
-2018-02-28 : Igor Pavlov : Public domain */
+2018-07-04 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
+#include <string.h>
+
 /* #include "CpuArch.h" */
 #include "LzmaDec.h"
 
-#include <string.h>
-
 #define kNumTopBits 24
 #define kTopValue ((UInt32)1 << kNumTopBits)
 
@@ -19,7 +19,7 @@
 
 #define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); }
 
-#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
+#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * (UInt32)ttt; if (code < bound)
 #define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));
 #define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits));
 #define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \
@@ -66,7 +66,7 @@
 
 #define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); }
 
-#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
+#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * (UInt32)ttt; if (code < bound)
 #define UPDATE_0_CHECK range = bound;
 #define UPDATE_1_CHECK range -= bound; code -= bound;
 #define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \
@@ -539,7 +539,7 @@ int MY_FAST_CALL LZMA_DECODE_REAL(CLzmaDec *p, SizeT limit, const Byte *bufLimit
         curLen = ((rem < len) ? (unsigned)rem : len);
         pos = dicPos - rep0 + (dicPos < rep0 ? dicBufSize : 0);
 
-        processedPos += curLen;
+        processedPos += (UInt32)curLen;
 
         len -= curLen;
         if (curLen <= dicBufSize - pos)
@@ -547,7 +547,7 @@ int MY_FAST_CALL LZMA_DECODE_REAL(CLzmaDec *p, SizeT limit, const Byte *bufLimit
           Byte *dest = dic + dicPos;
           ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
           const Byte *lim = dest + curLen;
-          dicPos += curLen;
+          dicPos += (SizeT)curLen;
           do
             *(dest) = (Byte)*(dest + src);
           while (++dest != lim);
@@ -572,14 +572,14 @@ int MY_FAST_CALL LZMA_DECODE_REAL(CLzmaDec *p, SizeT limit, const Byte *bufLimit
   p->buf = buf;
   p->range = range;
   p->code = code;
-  p->remainLen = len;
+  p->remainLen = (UInt32)len;
   p->dicPos = dicPos;
   p->processedPos = processedPos;
   p->reps[0] = rep0;
   p->reps[1] = rep1;
   p->reps[2] = rep2;
   p->reps[3] = rep3;
-  p->state = state;
+  p->state = (UInt32)state;
 
   return SZ_OK;
 }
@@ -601,8 +601,8 @@ static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
     if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)
       p->checkDicSize = p->prop.dicSize;
 
-    p->processedPos += len;
-    p->remainLen -= len;
+    p->processedPos += (UInt32)len;
+    p->remainLen -= (UInt32)len;
     while (len != 0)
     {
       len--;
@@ -850,7 +850,7 @@ static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inS
 }
 
 
-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
+void LzmaDec_InitDicAndState(CLzmaDec *p, BoolInt initDic, BoolInt initState)
 {
   p->remainLen = kMatchSpecLenStart + 1;
   p->tempBufSize = 0;
@@ -979,10 +979,10 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
         p->tempBufSize = rem;
         if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
         {
-          int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);
+          int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, (SizeT)rem);
           if (dummyRes == DUMMY_ERROR)
           {
-            (*srcLen) += lookAhead;
+            (*srcLen) += (SizeT)lookAhead;
             *status = LZMA_STATUS_NEEDS_MORE_INPUT;
             return SZ_OK;
           }
@@ -1005,9 +1005,9 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *sr
             return SZ_ERROR_FAIL; /* some internal error */
           lookAhead -= rem;
         }
-        (*srcLen) += lookAhead;
+        (*srcLen) += (SizeT)lookAhead;
         src += lookAhead;
-        inSize -= lookAhead;
+        inSize -= (SizeT)lookAhead;
         p->tempBufSize = 0;
       }
   }
diff --git a/code/ryzom/client/src/seven_zip/LzmaEnc.cpp b/code/ryzom/client/src/seven_zip/LzmaEnc.cpp
index 69de5d12e..54d0d0507 100644
--- a/code/ryzom/client/src/seven_zip/LzmaEnc.cpp
+++ b/code/ryzom/client/src/seven_zip/LzmaEnc.cpp
@@ -1,5 +1,5 @@
 /* LzmaEnc.c -- LZMA Encoder
-2018-04-29 : Igor Pavlov : Public domain */
+2019-01-10: Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -40,6 +40,8 @@ static unsigned g_STAT_OFFSET = 0;
 #define kNumBitPriceShiftBits 4
 #define kBitPrice (1 << kNumBitPriceShiftBits)
 
+#define REP_LEN_COUNT 64
+
 void LzmaEncProps_Init(CLzmaEncProps *p)
 {
   p->level = 5;
@@ -185,8 +187,11 @@ typedef struct
 } COptimal;
 
 
-#define kNumOpts (1 << 12)
-#define kPackReserve (1 + kNumOpts * 2)
+// 18.06
+#define kNumOpts (1 << 11)
+#define kPackReserve (kNumOpts * 8)
+// #define kNumOpts (1 << 12)
+// #define kPackReserve (1 + kNumOpts * 2)
 
 #define kNumLenToPosStates 4
 #define kNumPosSlotBits 6
@@ -238,10 +243,18 @@ typedef struct
 typedef struct
 {
   unsigned tableSize;
-  unsigned counters[LZMA_NUM_PB_STATES_MAX];
   UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
+  // UInt32 prices1[LZMA_NUM_PB_STATES_MAX][kLenNumLowSymbols * 2];
+  // UInt32 prices2[kLenNumSymbolsTotal];
 } CLenPriceEnc;
 
+#define GET_PRICE_LEN(p, posState, len) \
+    ((p)->prices[posState][(size_t)(len) - LZMA_MATCH_LEN_MIN])
+
+/*
+#define GET_PRICE_LEN(p, posState, len) \
+    ((p)->prices2[(size_t)(len) - 2] + ((p)->prices1[posState][((len) - 2) & (kLenNumLowSymbols * 2 - 1)] & (((len) - 2 - kLenNumLowSymbols * 2) >> 9)))
+*/
 
 typedef struct
 {
@@ -310,16 +323,18 @@ typedef struct
   unsigned lc, lp, pb;
   unsigned lclp;
 
-  Bool fastMode;
-  Bool writeEndMark;
-  Bool finished;
-  Bool multiThread;
-  Bool needInit;
+  BoolInt fastMode;
+  BoolInt writeEndMark;
+  BoolInt finished;
+  BoolInt multiThread;
+  BoolInt needInit;
+  // BoolInt _maxMode;
 
   UInt64 nowPos64;
   
   unsigned matchPriceCount;
-  unsigned alignPriceCount;
+  // unsigned alignPriceCount;
+  int repLenEncCounter;
 
   unsigned distTableSize;
 
@@ -327,7 +342,7 @@ typedef struct
   SRes result;
 
   #ifndef _7ZIP_ST
-  Bool mtMode;
+  BoolInt mtMode;
   // begin of CMatchFinderMt is used in LZ thread
   CMatchFinderMt matchFinderMt;
   // end of CMatchFinderMt is used in BT and HASH threads
@@ -460,6 +475,7 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
   p->lp = props.lp;
   p->pb = props.pb;
   p->fastMode = (props.algo == 0);
+  // p->_maxMode = True;
   p->matchFinderBase.btMode = (Byte)(props.btMode ? 1 : 0);
   {
     unsigned numHashBytes = 4;
@@ -620,9 +636,9 @@ static void RangeEnc_FlushData(CRangeEnc *p)
 
 #ifdef _LZMA_ENC_USE_BRANCH
 
-#define RC_BIT(p, prob, symbol) { \
+#define RC_BIT(p, prob, bit) { \
   RC_BIT_PRE(p, prob) \
-  if (symbol == 0) { range = newBound; ttt += (kBitModelTotal - ttt) >> kNumMoveBits; } \
+  if (bit == 0) { range = newBound; ttt += (kBitModelTotal - ttt) >> kNumMoveBits; } \
   else { (p)->low += newBound; range -= newBound; ttt -= ttt >> kNumMoveBits; } \
   *(prob) = (CLzmaProb)ttt; \
   RC_NORM(p) \
@@ -630,15 +646,15 @@ static void RangeEnc_FlushData(CRangeEnc *p)
 
 #else
 
-#define RC_BIT(p, prob, symbol) { \
+#define RC_BIT(p, prob, bit) { \
   UInt32 mask; \
   RC_BIT_PRE(p, prob) \
-  mask = 0 - (UInt32)symbol; \
+  mask = 0 - (UInt32)bit; \
   range &= mask; \
   mask &= newBound; \
   range -= mask; \
   (p)->low += mask; \
-  mask = (UInt32)symbol - 1; \
+  mask = (UInt32)bit - 1; \
   range += newBound & mask; \
   mask &= (kBitModelTotal - ((1 << kNumMoveBits) - 1)); \
   mask += ((1 << kNumMoveBits) - 1); \
@@ -675,42 +691,42 @@ static void RangeEnc_EncodeBit_0(CRangeEnc *p, CLzmaProb *prob)
   p->range = range;
 }
 
-static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol)
+static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 sym)
 {
   UInt32 range = p->range;
-  symbol |= 0x100;
+  sym |= 0x100;
   do
   {
     UInt32 ttt, newBound;
-    // RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1);
-    CLzmaProb *prob = probs + (symbol >> 8);
-    UInt32 bit = (symbol >> 7) & 1;
-    symbol <<= 1;
+    // RangeEnc_EncodeBit(p, probs + (sym >> 8), (sym >> 7) & 1);
+    CLzmaProb *prob = probs + (sym >> 8);
+    UInt32 bit = (sym >> 7) & 1;
+    sym <<= 1;
     RC_BIT(p, prob, bit);
   }
-  while (symbol < 0x10000);
+  while (sym < 0x10000);
   p->range = range;
 }
 
-static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte)
+static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 sym, UInt32 matchByte)
 {
   UInt32 range = p->range;
   UInt32 offs = 0x100;
-  symbol |= 0x100;
+  sym |= 0x100;
   do
   {
     UInt32 ttt, newBound;
     CLzmaProb *prob;
     UInt32 bit;
     matchByte <<= 1;
-    // RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)), (symbol >> 7) & 1);
-    prob = probs + (offs + (matchByte & offs) + (symbol >> 8));
-    bit = (symbol >> 7) & 1;
-    symbol <<= 1;
-    offs &= ~(matchByte ^ symbol);
+    // RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (sym >> 8)), (sym >> 7) & 1);
+    prob = probs + (offs + (matchByte & offs) + (sym >> 8));
+    bit = (sym >> 7) & 1;
+    sym <<= 1;
+    offs &= ~(matchByte ^ sym);
     RC_BIT(p, prob, bit);
   }
-  while (symbol < 0x10000);
+  while (sym < 0x10000);
   p->range = range;
 }
 
@@ -741,11 +757,11 @@ static void LzmaEnc_InitPriceTables(CProbPrice *ProbPrices)
 }
 
 
-#define GET_PRICE(prob, symbol) \
-  p->ProbPrices[((prob) ^ (unsigned)(((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
+#define GET_PRICE(prob, bit) \
+  p->ProbPrices[((prob) ^ (unsigned)(((-(int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
 
-#define GET_PRICEa(prob, symbol) \
-     ProbPrices[((prob) ^ (unsigned)((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
+#define GET_PRICEa(prob, bit) \
+     ProbPrices[((prob) ^ (unsigned)((-((int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
 
 #define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits]
 #define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
@@ -754,48 +770,48 @@ static void LzmaEnc_InitPriceTables(CProbPrice *ProbPrices)
 #define GET_PRICEa_1(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
 
 
-static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, const CProbPrice *ProbPrices)
+static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 sym, const CProbPrice *ProbPrices)
 {
   UInt32 price = 0;
-  symbol |= 0x100;
+  sym |= 0x100;
   do
   {
-    unsigned bit = symbol & 1;
-    symbol >>= 1;
-    price += GET_PRICEa(probs[symbol], bit);
+    unsigned bit = sym & 1;
+    sym >>= 1;
+    price += GET_PRICEa(probs[sym], bit);
   }
-  while (symbol >= 2);
+  while (sym >= 2);
   return price;
 }
 
 
-static UInt32 LitEnc_Matched_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, const CProbPrice *ProbPrices)
+static UInt32 LitEnc_Matched_GetPrice(const CLzmaProb *probs, UInt32 sym, UInt32 matchByte, const CProbPrice *ProbPrices)
 {
   UInt32 price = 0;
   UInt32 offs = 0x100;
-  symbol |= 0x100;
+  sym |= 0x100;
   do
   {
     matchByte <<= 1;
-    price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1);
-    symbol <<= 1;
-    offs &= ~(matchByte ^ symbol);
+    price += GET_PRICEa(probs[offs + (matchByte & offs) + (sym >> 8)], (sym >> 7) & 1);
+    sym <<= 1;
+    offs &= ~(matchByte ^ sym);
   }
-  while (symbol < 0x10000);
+  while (sym < 0x10000);
   return price;
 }
 
 
-static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, unsigned numBits, UInt32 symbol)
+static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, unsigned numBits, unsigned sym)
 {
   UInt32 range = rc->range;
   unsigned m = 1;
   do
   {
     UInt32 ttt, newBound;
-    unsigned bit = symbol & 1;
+    unsigned bit = sym & 1;
     // RangeEnc_EncodeBit(rc, probs + m, bit);
-    symbol >>= 1;
+    sym >>= 1;
     RC_BIT(rc, probs + m, bit);
     m = (m << 1) | bit;
   }
@@ -814,37 +830,37 @@ static void LenEnc_Init(CLenEnc *p)
     p->high[i] = kProbInitValue;
 }
 
-static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, unsigned symbol, unsigned posState)
+static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, unsigned sym, unsigned posState)
 {
   UInt32 range, ttt, newBound;
   CLzmaProb *probs = p->low;
   range = rc->range;
   RC_BIT_PRE(rc, probs);
-  if (symbol >= kLenNumLowSymbols)
+  if (sym >= kLenNumLowSymbols)
   {
     RC_BIT_1(rc, probs);
     probs += kLenNumLowSymbols;
     RC_BIT_PRE(rc, probs);
-    if (symbol >= kLenNumLowSymbols * 2)
+    if (sym >= kLenNumLowSymbols * 2)
     {
       RC_BIT_1(rc, probs);
       rc->range = range;
-      // RcTree_Encode(rc, p->high, kLenNumHighBits, symbol - kLenNumLowSymbols * 2);
-      LitEnc_Encode(rc, p->high, symbol - kLenNumLowSymbols * 2);
+      // RcTree_Encode(rc, p->high, kLenNumHighBits, sym - kLenNumLowSymbols * 2);
+      LitEnc_Encode(rc, p->high, sym - kLenNumLowSymbols * 2);
       return;
     }
-    symbol -= kLenNumLowSymbols;
+    sym -= kLenNumLowSymbols;
   }
 
-  // RcTree_Encode(rc, probs + (posState << kLenNumLowBits), kLenNumLowBits, symbol);
+  // RcTree_Encode(rc, probs + (posState << kLenNumLowBits), kLenNumLowBits, sym);
   {
     unsigned m;
     unsigned bit;
     RC_BIT_0(rc, probs);
     probs += (posState << (1 + kLenNumLowBits));
-    bit = (symbol >> 2)    ; RC_BIT(rc, probs + 1, bit); m = (1 << 1) + bit;
-    bit = (symbol >> 1) & 1; RC_BIT(rc, probs + m, bit); m = (m << 1) + bit;
-    bit =  symbol       & 1; RC_BIT(rc, probs + m, bit);
+    bit = (sym >> 2)    ; RC_BIT(rc, probs + 1, bit); m = (1 << 1) + bit;
+    bit = (sym >> 1) & 1; RC_BIT(rc, probs + m, bit); m = (m << 1) + bit;
+    bit =  sym       & 1; RC_BIT(rc, probs + m, bit);
     rc->range = range;
   }
 }
@@ -865,51 +881,94 @@ static void SetPrices_3(const CLzmaProb *probs, UInt32 startPrice, UInt32 *price
 }
 
 
-MY_NO_INLINE static void MY_FAST_CALL LenPriceEnc_UpdateTable(
-    CLenPriceEnc *p, unsigned posState,
+MY_NO_INLINE static void MY_FAST_CALL LenPriceEnc_UpdateTables(
+    CLenPriceEnc *p,
+    unsigned numPosStates,
     const CLenEnc *enc,
     const CProbPrice *ProbPrices)
 {
-  // int y; for (y = 0; y < 100; y++) {
-  UInt32 a;
-  unsigned i, numSymbols;
-
-  UInt32 *prices = p->prices[posState];
+  UInt32 b;
+ 
   {
-    const CLzmaProb *probs = enc->low + (posState << (1 + kLenNumLowBits));
-    SetPrices_3(probs, GET_PRICEa_0(enc->low[0]), prices, ProbPrices);
+    unsigned prob = enc->low[0];
+    UInt32 a, c;
+    unsigned posState;
+    b = GET_PRICEa_1(prob);
+    a = GET_PRICEa_0(prob);
+    c = b + GET_PRICEa_0(enc->low[kLenNumLowSymbols]);
+    for (posState = 0; posState < numPosStates; posState++)
+    {
+      UInt32 *prices = p->prices[posState];
+      const CLzmaProb *probs = enc->low + (posState << (1 + kLenNumLowBits));
+      SetPrices_3(probs, a, prices, ProbPrices);
+      SetPrices_3(probs + kLenNumLowSymbols, c, prices + kLenNumLowSymbols, ProbPrices);
+    }
+  }
+
+  /*
+  {
+    unsigned i;
+    UInt32 b;
+    a = GET_PRICEa_0(enc->low[0]);
+    for (i = 0; i < kLenNumLowSymbols; i++)
+      p->prices2[i] = a;
     a = GET_PRICEa_1(enc->low[0]);
-    SetPrices_3(probs + kLenNumLowSymbols, a + GET_PRICEa_0(enc->low[kLenNumLowSymbols]), prices + kLenNumLowSymbols, ProbPrices);
+    b = a + GET_PRICEa_0(enc->low[kLenNumLowSymbols]);
+    for (i = kLenNumLowSymbols; i < kLenNumLowSymbols * 2; i++)
+      p->prices2[i] = b;
     a += GET_PRICEa_1(enc->low[kLenNumLowSymbols]);
   }
-  numSymbols = p->tableSize;
-  p->counters[posState] = numSymbols;
-  for (i = kLenNumLowSymbols * 2; i < numSymbols; i += 1)
+  */
+ 
+  // p->counter = numSymbols;
+  // p->counter = 64;
+
   {
-    prices[i] = a +
-       // RcTree_GetPrice(enc->high, kLenNumHighBits, i - kLenNumLowSymbols * 2, ProbPrices);
-       LitEnc_GetPrice(enc->high, i - kLenNumLowSymbols * 2, ProbPrices);
-    /*
-    unsigned sym = (i - kLenNumLowSymbols * 2) >> 1;
-    UInt32 price = a + RcTree_GetPrice(enc->high, kLenNumHighBits - 1, sym, ProbPrices);
-    UInt32 prob = enc->high[(1 << 7) + sym];
-    prices[i    ] = price + GET_PRICEa_0(prob);
-    prices[i + 1] = price + GET_PRICEa_1(prob);
-    */
+    unsigned i = p->tableSize;
+    
+    if (i > kLenNumLowSymbols * 2)
+    {
+      const CLzmaProb *probs = enc->high;
+      UInt32 *prices = p->prices[0] + kLenNumLowSymbols * 2;
+      i -= kLenNumLowSymbols * 2 - 1;
+      i >>= 1;
+      b += GET_PRICEa_1(enc->low[kLenNumLowSymbols]);
+      do
+      {
+        /*
+        p->prices2[i] = a +
+        // RcTree_GetPrice(enc->high, kLenNumHighBits, i - kLenNumLowSymbols * 2, ProbPrices);
+        LitEnc_GetPrice(probs, i - kLenNumLowSymbols * 2, ProbPrices);
+        */
+        // UInt32 price = a + RcTree_GetPrice(probs, kLenNumHighBits - 1, sym, ProbPrices);
+        unsigned sym = --i + (1 << (kLenNumHighBits - 1));
+        UInt32 price = b;
+        do
+        {
+          unsigned bit = sym & 1;
+          sym >>= 1;
+          price += GET_PRICEa(probs[sym], bit);
+        }
+        while (sym >= 2);
+
+        {
+          unsigned prob = probs[(size_t)i + (1 << (kLenNumHighBits - 1))];
+          prices[(size_t)i * 2    ] = price + GET_PRICEa_0(prob);
+          prices[(size_t)i * 2 + 1] = price + GET_PRICEa_1(prob);
+        }
+      }
+      while (i);
+
+      {
+        unsigned posState;
+        size_t num = (p->tableSize - kLenNumLowSymbols * 2) * sizeof(p->prices[0][0]);
+        for (posState = 1; posState < numPosStates; posState++)
+          memcpy(p->prices[posState] + kLenNumLowSymbols * 2, p->prices[0] + kLenNumLowSymbols * 2, num);
+      }
+    }
   }
-  // }
 }
 
-static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, unsigned numPosStates,
-    const CLenEnc *enc,
-    const CProbPrice *ProbPrices)
-{
-  unsigned posState;
-  for (posState = 0; posState < numPosStates; posState++)
-    LenPriceEnc_UpdateTable(p, posState, enc, ProbPrices);
-}
-
-
 /*
   #ifdef SHOW_STAT
   g_STAT_OFFSET += num;
@@ -919,7 +978,7 @@ static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, unsigned numPosStates,
   
 #define MOVE_POS(p, num) { \
     p->additionalOffset += (num); \
-    p->matchFinder.Skip(p->matchFinderObj, (num)); }
+    p->matchFinder.Skip(p->matchFinderObj, (UInt32)(num)); }
 
 
 static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes)
@@ -956,7 +1015,8 @@ static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes)
         const Byte *p2 = p1 + len;
         ptrdiff_t dif = (ptrdiff_t)-1 - p->matches[(size_t)numPairs - 1];
         const Byte *lim = p1 + numAvail;
-        for (; p2 != lim && *p2 == p2[dif]; p2++);
+        for (; p2 != lim && *p2 == p2[dif]; p2++)
+        {}
         return (unsigned)(p2 - p1);
       }
     }
@@ -979,7 +1039,7 @@ static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes)
   + GET_PRICE_1(p->isRep[state]) \
   + GET_PRICE_0(p->isRepG0[state])
   
-
+MY_FORCE_INLINE
 static UInt32 GetPrice_PureRep(const CLzmaEnc *p, unsigned repIndex, size_t state, size_t posState)
 {
   UInt32 price;
@@ -1013,14 +1073,14 @@ static unsigned Backward(CLzmaEnc *p, unsigned cur)
   for (;;)
   {
     UInt32 dist = p->opt[cur].dist;
-    UInt32 len = p->opt[cur].len;
-    UInt32 extra = p->opt[cur].extra;
+    unsigned len = (unsigned)p->opt[cur].len;
+    unsigned extra = (unsigned)p->opt[cur].extra;
     cur -= len;
 
     if (extra)
     {
       wr--;
-      p->opt[wr].len = len;
+      p->opt[wr].len = (UInt32)len;
       cur -= extra;
       len = extra;
       if (extra == 1)
@@ -1047,7 +1107,7 @@ static unsigned Backward(CLzmaEnc *p, unsigned cur)
     
     wr--;
     p->opt[wr].dist = dist;
-    p->opt[wr].len = len;
+    p->opt[wr].len = (UInt32)len;
   }
 }
 
@@ -1104,7 +1164,8 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
         repLens[i] = 0;
         continue;
       }
-      for (len = 2; len < numAvail && data[len] == data2[len]; len++);
+      for (len = 2; len < numAvail && data[len] == data2[len]; len++)
+      {}
       repLens[i] = len;
       if (len > repLens[repMaxIndex])
         repMaxIndex = i;
@@ -1113,7 +1174,7 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     if (repLens[repMaxIndex] >= p->numFastBytes)
     {
       unsigned len;
-      p->backRes = repMaxIndex;
+      p->backRes = (UInt32)repMaxIndex;
       len = repLens[repMaxIndex];
       MOVE_POS(p, len - 1)
       return len;
@@ -1130,8 +1191,12 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     
     curByte = *data;
     matchByte = *(data - reps[0]);
+
+    last = repLens[repMaxIndex];
+    if (last <= mainLen)
+      last = mainLen;
     
-    if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2)
+    if (last < 2 && curByte != matchByte)
     {
       p->backRes = MARK_LIT;
       return 1;
@@ -1148,13 +1213,14 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
           LitEnc_Matched_GetPrice(probs, curByte, matchByte, p->ProbPrices) :
           LitEnc_GetPrice(probs, curByte, p->ProbPrices));
     }
-    
+
     MakeAs_Lit(&p->opt[1]);
     
     matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]);
     repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]);
     
-    if (matchByte == curByte)
+    // 18.06
+    if (matchByte == curByte && repLens[0] == 0)
     {
       UInt32 shortRepPrice = repMatchPrice + GetPrice_ShortRep(p, p->state, posState);
       if (shortRepPrice < p->opt[1].price)
@@ -1162,16 +1228,13 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
         p->opt[1].price = shortRepPrice;
         MakeAs_ShortRep(&p->opt[1]);
       }
+      if (last < 2)
+      {
+        p->backRes = p->opt[1].dist;
+        return 1;
+      }
     }
-    
-    last = (mainLen >= repLens[repMaxIndex] ? mainLen : repLens[repMaxIndex]);
-    
-    if (last < 2)
-    {
-      p->backRes = p->opt[1].dist;
-      return 1;
-    }
-    
+   
     p->opt[1].len = 1;
     
     p->opt[0].reps[0] = reps[0];
@@ -1179,13 +1242,6 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     p->opt[0].reps[2] = reps[2];
     p->opt[0].reps[3] = reps[3];
     
-    {
-      unsigned len = last;
-      do
-        p->opt[len--].price = kInfinityPrice;
-      while (len >= 2);
-    }
-
     // ---------- REP ----------
     
     for (i = 0; i < LZMA_NUM_REPS; i++)
@@ -1197,13 +1253,13 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
       price = repMatchPrice + GetPrice_PureRep(p, i, p->state, posState);
       do
       {
-        UInt32 price2 = price + p->repLenEnc.prices[posState][(size_t)repLen - 2];
+        UInt32 price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState, repLen);
         COptimal *opt = &p->opt[repLen];
         if (price2 < opt->price)
         {
           opt->price = price2;
-          opt->len = repLen;
-          opt->dist = i;
+          opt->len = (UInt32)repLen;
+          opt->dist = (UInt32)i;
           opt->extra = 0;
         }
       }
@@ -1213,38 +1269,41 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     
     // ---------- MATCH ----------
     {
-      unsigned len  = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);
+      unsigned len = repLens[0] + 1;
       if (len <= mainLen)
       {
         unsigned offs = 0;
         UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
 
-        while (len > matches[offs])
-          offs += 2;
+        if (len < 2)
+          len = 2;
+        else
+          while (len > matches[offs])
+            offs += 2;
     
         for (; ; len++)
         {
           COptimal *opt;
           UInt32 dist = matches[(size_t)offs + 1];
-          UInt32 price2 = normalMatchPrice + p->lenEnc.prices[posState][(size_t)len - LZMA_MATCH_LEN_MIN];
+          UInt32 price = normalMatchPrice + GET_PRICE_LEN(&p->lenEnc, posState, len);
           unsigned lenToPosState = GetLenToPosState(len);
        
           if (dist < kNumFullDistances)
-            price2 += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];
+            price += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];
           else
           {
             unsigned slot;
             GetPosSlot2(dist, slot);
-            price2 += p->alignPrices[dist & kAlignMask];
-            price2 += p->posSlotPrices[lenToPosState][slot];
+            price += p->alignPrices[dist & kAlignMask];
+            price += p->posSlotPrices[lenToPosState][slot];
           }
           
           opt = &p->opt[len];
           
-          if (price2 < opt->price)
+          if (price < opt->price)
           {
-            opt->price = price2;
-            opt->len = len;
+            opt->price = price;
+            opt->len = (UInt32)len;
             opt->dist = dist + LZMA_NUM_REPS;
             opt->extra = 0;
           }
@@ -1279,16 +1338,43 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
 
   for (;;)
   {
-    UInt32 numAvail, numAvailFull;
+    unsigned numAvail;
+    UInt32 numAvailFull;
     unsigned newLen, numPairs, prev, state, posState, startLen;
-    UInt32 curPrice, litPrice, matchPrice, repMatchPrice;
-    Bool nextIsLit;
+    UInt32 litPrice, matchPrice, repMatchPrice;
+    BoolInt nextIsLit;
     Byte curByte, matchByte;
     const Byte *data;
     COptimal *curOpt, *nextOpt;
 
     if (++cur == last)
-      return Backward(p, cur);
+      break;
+    
+    // 18.06
+    if (cur >= kNumOpts - 64)
+    {
+      unsigned j, best;
+      UInt32 price = p->opt[cur].price;
+      best = cur;
+      for (j = cur + 1; j <= last; j++)
+      {
+        UInt32 price2 = p->opt[j].price;
+        if (price >= price2)
+        {
+          price = price2;
+          best = j;
+        }
+      }
+      {
+        unsigned delta = best - cur;
+        if (delta != 0)
+        {
+          MOVE_POS(p, delta);
+        }
+      }
+      cur = best;
+      break;
+    }
 
     newLen = ReadMatchDistances(p, &numPairs);
     
@@ -1296,15 +1382,24 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     {
       p->numPairs = numPairs;
       p->longestMatchLen = newLen;
-      return Backward(p, cur);
+      break;
     }
     
     curOpt = &p->opt[cur];
+
+    position++;
+
+    // we need that check here, if skip_items in p->opt are possible
+    /*
+    if (curOpt->price >= kInfinityPrice)
+      continue;
+    */
+
     prev = cur - curOpt->len;
-    
+
     if (curOpt->len == 1)
     {
-      state = p->opt[prev].state;
+      state = (unsigned)p->opt[prev].state;
       if (IsShortRep(curOpt))
         state = kShortRepNextStates[state];
       else
@@ -1318,14 +1413,14 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
 
       if (curOpt->extra)
       {
-        prev -= curOpt->extra;
+        prev -= (unsigned)curOpt->extra;
         state = kState_RepAfterLit;
         if (curOpt->extra == 1)
-          state = (dist < LZMA_NUM_REPS) ? kState_RepAfterLit : kState_MatchAfterLit;
+          state = (dist < LZMA_NUM_REPS ? kState_RepAfterLit : kState_MatchAfterLit);
       }
       else
       {
-        state = p->opt[prev].state;
+        state = (unsigned)p->opt[prev].state;
         if (dist < LZMA_NUM_REPS)
           state = kRepNextStates[state];
         else
@@ -1381,7 +1476,6 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     curByte = *data;
     matchByte = *(data - reps[0]);
 
-    position++;
     posState = (position & p->pbMask);
 
     /*
@@ -1393,13 +1487,25 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
        <  MATCH  [ : LIT : REP_0 ]
     */
 
-    curPrice = curOpt->price;
-    litPrice = curPrice + GET_PRICE_0(p->isMatch[state][posState]);
+    {
+      UInt32 curPrice = curOpt->price;
+      unsigned prob = p->isMatch[state][posState];
+      matchPrice = curPrice + GET_PRICE_1(prob);
+      litPrice = curPrice + GET_PRICE_0(prob);
+    }
 
     nextOpt = &p->opt[(size_t)cur + 1];
     nextIsLit = False;
 
-    // if (litPrice >= nextOpt->price) litPrice = 0; else // 18.new
+    // here we can allow skip_items in p->opt, if we don't check (nextOpt->price < kInfinityPrice)
+    // 18.new.06
+    if ((nextOpt->price < kInfinityPrice
+        // && !IsLitState(state)
+        && matchByte == curByte)
+        || litPrice > nextOpt->price
+        )
+      litPrice = 0;
+    else
     {
       const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
       litPrice += (!IsLitState(state) ?
@@ -1415,21 +1521,32 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
       }
     }
 
-    matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);
     repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);
     
+    numAvailFull = p->numAvail;
+    {
+      unsigned temp = kNumOpts - 1 - cur;
+      if (numAvailFull > temp)
+        numAvailFull = (UInt32)temp;
+    }
+
+    // 18.06
     // ---------- SHORT_REP ----------
-    // if (IsLitState(state)) // 18.new
+    if (IsLitState(state)) // 18.new
     if (matchByte == curByte)
-    // if (repMatchPrice < nextOpt->price) // 18.new
-    if (nextOpt->len < 2
+    if (repMatchPrice < nextOpt->price) // 18.new
+    // if (numAvailFull < 2 || data[1] != *(data - reps[0] + 1))
+    if (
+        // nextOpt->price >= kInfinityPrice ||
+        nextOpt->len < 2   // we can check nextOpt->len, if skip items are not allowed in p->opt
         || (nextOpt->dist != 0
-            && nextOpt->extra <= 1 // 17.old
-        ))
+            // && nextOpt->extra <= 1 // 17.old
+            )
+        )
     {
       UInt32 shortRepPrice = repMatchPrice + GetPrice_ShortRep(p, state, posState);
-      if (shortRepPrice <= nextOpt->price) // 17.old
-      // if (shortRepPrice < nextOpt->price)  // 18.new
+      // if (shortRepPrice <= nextOpt->price) // 17.old
+      if (shortRepPrice < nextOpt->price)  // 18.new
       {
         nextOpt->price = shortRepPrice;
         nextOpt->len = 1;
@@ -1438,13 +1555,6 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
       }
     }
     
-    numAvailFull = p->numAvail;
-    {
-      UInt32 temp = kNumOpts - 1 - cur;
-      if (numAvailFull > temp)
-        numAvailFull = temp;
-    }
-
     if (numAvailFull < 2)
       continue;
     numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes);
@@ -1453,9 +1563,8 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
 
     // ---------- LIT : REP_0 ----------
 
-    if (
-        // litPrice != 0 && // 18.new
-        !nextIsLit
+    if (!nextIsLit
+        && litPrice != 0 // 18.new
         && matchByte != curByte
         && numAvailFull > 2)
     {
@@ -1466,7 +1575,8 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
         unsigned limit = p->numFastBytes + 1;
         if (limit > numAvailFull)
           limit = numAvailFull;
-        for (len = 3; len < limit && data[len] == data2[len]; len++);
+        for (len = 3; len < limit && data[len] == data2[len]; len++)
+        {}
         
         {
           unsigned state2 = kLiteralNextStates[state];
@@ -1474,8 +1584,9 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
           UInt32 price = litPrice + GetPrice_Rep_0(p, state2, posState2);
           {
             unsigned offset = cur + len;
-            while (last < offset)
-              p->opt[++last].price = kInfinityPrice;
+
+            if (last < offset)
+              last = offset;
           
             // do
             {
@@ -1483,14 +1594,14 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
               COptimal *opt;
               len--;
               // price2 = price + GetPrice_Len_Rep_0(p, len, state2, posState2);
-              price2 = price + p->repLenEnc.prices[posState2][len - LZMA_MATCH_LEN_MIN];
+              price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len);
 
               opt = &p->opt[offset];
               // offset--;
               if (price2 < opt->price)
               {
                 opt->price = price2;
-                opt->len = len;
+                opt->len = (UInt32)len;
                 opt->dist = 0;
                 opt->extra = 1;
               }
@@ -1502,6 +1613,7 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     }
     
     startLen = 2; /* speed optimization */
+
     {
       // ---------- REP ----------
       unsigned repIndex = 0; // 17.old
@@ -1514,24 +1626,28 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
         if (data[0] != data2[0] || data[1] != data2[1])
           continue;
         
-        for (len = 2; len < numAvail && data[len] == data2[len]; len++);
+        for (len = 2; len < numAvail && data[len] == data2[len]; len++)
+        {}
         
         // if (len < startLen) continue; // 18.new: speed optimization
 
-        while (last < cur + len)
-          p->opt[++last].price = kInfinityPrice;
+        {
+          unsigned offset = cur + len;
+          if (last < offset)
+            last = offset;
+        }
         {
           unsigned len2 = len;
           price = repMatchPrice + GetPrice_PureRep(p, repIndex, state, posState);
           do
           {
-            UInt32 price2 = price + p->repLenEnc.prices[posState][(size_t)len2 - 2];
+            UInt32 price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState, len2);
             COptimal *opt = &p->opt[cur + len2];
             if (price2 < opt->price)
             {
               opt->price = price2;
-              opt->len = len2;
-              opt->dist = repIndex;
+              opt->len = (UInt32)len2;
+              opt->dist = (UInt32)repIndex;
               opt->extra = 0;
             }
           }
@@ -1551,15 +1667,14 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
           if (limit > numAvailFull)
             limit = numAvailFull;
           
-          for (; len2 < limit && data[len2] == data2[len2]; len2++);
-          
-          len2 -= len;
-          if (len2 >= 3)
+          len2 += 2;
+          if (len2 <= limit)
+          if (data[len2 - 2] == data2[len2 - 2])
+          if (data[len2 - 1] == data2[len2 - 1])
           {
             unsigned state2 = kRepNextStates[state];
             unsigned posState2 = (position + len) & p->pbMask;
-            price +=
-                  p->repLenEnc.prices[posState][(size_t)len - 2]
+            price += GET_PRICE_LEN(&p->repLenEnc, posState, len)
                 + GET_PRICE_0(p->isMatch[state2][posState2])
                 + LitEnc_Matched_GetPrice(LIT_PROBS(position + len, data[(size_t)len - 1]),
                     data[len], data2[len], p->ProbPrices);
@@ -1570,31 +1685,40 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
 
 
             price += GetPrice_Rep_0(p, state2, posState2);
+
+          for (; len2 < limit && data[len2] == data2[len2]; len2++)
+          {}
+          
+          len2 -= len;
+          // if (len2 >= 3)
+          {
             {
               unsigned offset = cur + len + len2;
-              while (last < offset)
-                p->opt[++last].price = kInfinityPrice;
+
+              if (last < offset)
+                last = offset;
               // do
               {
-                unsigned price2;
+                UInt32 price2;
                 COptimal *opt;
                 len2--;
                 // price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2);
-                price2 = price + p->repLenEnc.prices[posState2][len2 - LZMA_MATCH_LEN_MIN];
+                price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2);
 
                 opt = &p->opt[offset];
                 // offset--;
                 if (price2 < opt->price)
                 {
                   opt->price = price2;
-                  opt->len = len2;
+                  opt->len = (UInt32)len2;
                   opt->extra = (CExtra)(len + 1);
-                  opt->dist = repIndex;
+                  opt->dist = (UInt32)repIndex;
                 }
               }
               // while (len2 >= 3);
             }
           }
+          }
         }
       }
     }
@@ -1606,17 +1730,23 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
     {
       newLen = numAvail;
       for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2);
-      matches[numPairs] = newLen;
+      matches[numPairs] = (UInt32)newLen;
       numPairs += 2;
     }
     
+    // startLen = 2; /* speed optimization */
+
     if (newLen >= startLen)
     {
       UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
       UInt32 dist;
       unsigned offs, posSlot, len;
-      while (last < cur + newLen)
-        p->opt[++last].price = kInfinityPrice;
+      
+      {
+        unsigned offset = cur + newLen;
+        if (last < offset)
+          last = offset;
+      }
 
       offs = 0;
       while (startLen > matches[offs])
@@ -1628,27 +1758,29 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
       
       for (len = /*2*/ startLen; ; len++)
       {
-        UInt32 price = normalMatchPrice + p->lenEnc.prices[posState][(size_t)len - LZMA_MATCH_LEN_MIN];
+        UInt32 price = normalMatchPrice + GET_PRICE_LEN(&p->lenEnc, posState, len);
         {
           COptimal *opt;
-          unsigned lenToPosState = len - 2; lenToPosState = GetLenToPosState2(lenToPosState);
+          unsigned lenNorm = len - 2;
+          lenNorm = GetLenToPosState2(lenNorm);
           if (dist < kNumFullDistances)
-            price += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];
+            price += p->distancesPrices[lenNorm][dist & (kNumFullDistances - 1)];
           else
-            price += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[dist & kAlignMask];
+            price += p->posSlotPrices[lenNorm][posSlot] + p->alignPrices[dist & kAlignMask];
           
           opt = &p->opt[cur + len];
           if (price < opt->price)
           {
             opt->price = price;
-            opt->len = len;
+            opt->len = (UInt32)len;
             opt->dist = dist + LZMA_NUM_REPS;
             opt->extra = 0;
           }
         }
 
-        if (/*_maxMode && */ len == matches[offs])
+        if (len == matches[offs])
         {
+          // if (p->_maxMode) {
           // MATCH : LIT : REP_0
 
           const Byte *data2 = data - dist - 1;
@@ -1657,11 +1789,17 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
           if (limit > numAvailFull)
             limit = numAvailFull;
           
-          for (; len2 < limit && data[len2] == data2[len2]; len2++);
+          len2 += 2;
+          if (len2 <= limit)
+          if (data[len2 - 2] == data2[len2 - 2])
+          if (data[len2 - 1] == data2[len2 - 1])
+          {
+          for (; len2 < limit && data[len2] == data2[len2]; len2++)
+          {}
           
           len2 -= len;
           
-          if (len2 >= 3)
+          // if (len2 >= 3)
           {
             unsigned state2 = kMatchNextStates[state];
             unsigned posState2 = (position + len) & p->pbMask;
@@ -1677,27 +1815,30 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
             price += GetPrice_Rep_0(p, state2, posState2);
 
             offset = cur + len + len2;
-            while (last < offset)
-              p->opt[++last].price = kInfinityPrice;
+
+            if (last < offset)
+              last = offset;
             // do
             {
               UInt32 price2;
               COptimal *opt;
               len2--;
               // price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2);
-              price2 = price + p->repLenEnc.prices[posState2][len2 - LZMA_MATCH_LEN_MIN];
+              price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2);
               opt = &p->opt[offset];
               // offset--;
               if (price2 < opt->price)
               {
                 opt->price = price2;
-                opt->len = len2;
+                opt->len = (UInt32)len2;
                 opt->extra = (CExtra)(len + 1);
                 opt->dist = dist + LZMA_NUM_REPS;
               }
             }
             // while (len2 >= 3);
           }
+
+          }
         
           offs += 2;
           if (offs == numPairs)
@@ -1709,6 +1850,12 @@ static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)
       }
     }
   }
+
+  do
+    p->opt[last].price = kInfinityPrice;
+  while (--last);
+
+  return Backward(p, cur);
 }
 
 
@@ -1735,6 +1882,7 @@ static unsigned GetOptimumFast(CLzmaEnc *p)
   p->backRes = MARK_LIT;
   if (numAvail < 2)
     return 1;
+  // if (mainLen < 2 && p->state == 0) return 1; // 18.06.notused
   if (numAvail > LZMA_MATCH_LEN_MAX)
     numAvail = LZMA_MATCH_LEN_MAX;
   data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
@@ -1746,10 +1894,11 @@ static unsigned GetOptimumFast(CLzmaEnc *p)
     const Byte *data2 = data - p->reps[i];
     if (data[0] != data2[0] || data[1] != data2[1])
       continue;
-    for (len = 2; len < numAvail && data[len] == data2[len]; len++);
+    for (len = 2; len < numAvail && data[len] == data2[len]; len++)
+    {}
     if (len >= p->numFastBytes)
     {
-      p->backRes = i;
+      p->backRes = (UInt32)i;
       MOVE_POS(p, len - 1)
       return len;
     }
@@ -1793,7 +1942,7 @@ static unsigned GetOptimumFast(CLzmaEnc *p)
         || (repLen + 2 >= mainLen && mainDist >= (1 << 9))
         || (repLen + 3 >= mainLen && mainDist >= (1 << 15)))
   {
-    p->backRes = repIndex;
+    p->backRes = (UInt32)repIndex;
     MOVE_POS(p, repLen - 1)
     return repLen;
   }
@@ -1932,23 +2081,22 @@ MY_NO_INLINE static SRes Flush(CLzmaEnc *p, UInt32 nowPos)
 }
 
 
-
-static void FillAlignPrices(CLzmaEnc *p)
+MY_NO_INLINE static void FillAlignPrices(CLzmaEnc *p)
 {
   unsigned i;
   const CProbPrice *ProbPrices = p->ProbPrices;
   const CLzmaProb *probs = p->posAlignEncoder;
-  p->alignPriceCount = 0;
+  // p->alignPriceCount = 0;
   for (i = 0; i < kAlignTableSize / 2; i++)
   {
     UInt32 price = 0;
-    unsigned symbol = i;
+    unsigned sym = i;
     unsigned m = 1;
     unsigned bit;
     UInt32 prob;
-    bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
-    bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
-    bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
+    bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
+    bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
+    bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[m], bit); m = (m << 1) + bit;
     prob = probs[m];
     p->alignPrices[i    ] = price + GET_PRICEa_0(prob);
     p->alignPrices[i + 8] = price + GET_PRICEa_1(prob);
@@ -1957,78 +2105,97 @@ static void FillAlignPrices(CLzmaEnc *p)
 }
 
 
-static void FillDistancesPrices(CLzmaEnc *p)
+MY_NO_INLINE static void FillDistancesPrices(CLzmaEnc *p)
 {
+  // int y; for (y = 0; y < 100; y++) {
+
   UInt32 tempPrices[kNumFullDistances];
-  unsigned i, lenToPosState;
+  unsigned i, lps;
 
   const CProbPrice *ProbPrices = p->ProbPrices;
   p->matchPriceCount = 0;
 
-  for (i = kStartPosModelIndex; i < kNumFullDistances; i++)
+  for (i = kStartPosModelIndex / 2; i < kNumFullDistances / 2; i++)
   {
     unsigned posSlot = GetPosSlot1(i);
-    unsigned footerBits = ((posSlot >> 1) - 1);
+    unsigned footerBits = (posSlot >> 1) - 1;
     unsigned base = ((2 | (posSlot & 1)) << footerBits);
+    const CLzmaProb *probs = p->posEncoders + (size_t)base * 2;
     // tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base, footerBits, i - base, p->ProbPrices);
-
-    const CLzmaProb *probs = p->posEncoders + base;
     UInt32 price = 0;
     unsigned m = 1;
-    unsigned symbol = i - base;
+    unsigned sym = i;
+    unsigned offset = (unsigned)1 << footerBits;
+    base += i;
+    
+    if (footerBits)
     do
     {
-      unsigned bit = symbol & 1;
-      symbol >>= 1;
+      unsigned bit = sym & 1;
+      sym >>= 1;
       price += GET_PRICEa(probs[m], bit);
       m = (m << 1) + bit;
     }
     while (--footerBits);
-    tempPrices[i] = price;
+
+    {
+      unsigned prob = probs[m];
+      tempPrices[base         ] = price + GET_PRICEa_0(prob);
+      tempPrices[base + offset] = price + GET_PRICEa_1(prob);
+    }
   }
 
-  for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)
+  for (lps = 0; lps < kNumLenToPosStates; lps++)
   {
-    unsigned posSlot;
-    const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState];
-    UInt32 *posSlotPrices = p->posSlotPrices[lenToPosState];
-    unsigned distTableSize = p->distTableSize;
-    const CLzmaProb *probs = encoder;
-    for (posSlot = 0; posSlot < distTableSize; posSlot += 2)
+    unsigned slot;
+    unsigned distTableSize2 = (p->distTableSize + 1) >> 1;
+    UInt32 *posSlotPrices = p->posSlotPrices[lps];
+    const CLzmaProb *probs = p->posSlotEncoder[lps];
+    
+    for (slot = 0; slot < distTableSize2; slot++)
     {
-      // posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);
-      UInt32 price = 0;
+      // posSlotPrices[slot] = RcTree_GetPrice(encoder, kNumPosSlotBits, slot, p->ProbPrices);
+      UInt32 price;
       unsigned bit;
-      unsigned symbol = (posSlot >> 1) + (1 << (kNumPosSlotBits - 1));
-      UInt32 prob;
-      bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[symbol], bit);
-      bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[symbol], bit);
-      bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[symbol], bit);
-      bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[symbol], bit);
-      bit = symbol & 1; symbol >>= 1; price += GET_PRICEa(probs[symbol], bit);
-      prob = probs[(posSlot >> 1) + (1 << (kNumPosSlotBits - 1))];
-      posSlotPrices[posSlot    ] = price + GET_PRICEa_0(prob);
-      posSlotPrices[posSlot + 1] = price + GET_PRICEa_1(prob);
+      unsigned sym = slot + (1 << (kNumPosSlotBits - 1));
+      unsigned prob;
+      bit = sym & 1; sym >>= 1; price  = GET_PRICEa(probs[sym], bit);
+      bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[sym], bit);
+      bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[sym], bit);
+      bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[sym], bit);
+      bit = sym & 1; sym >>= 1; price += GET_PRICEa(probs[sym], bit);
+      prob = probs[(size_t)slot + (1 << (kNumPosSlotBits - 1))];
+      posSlotPrices[(size_t)slot * 2    ] = price + GET_PRICEa_0(prob);
+      posSlotPrices[(size_t)slot * 2 + 1] = price + GET_PRICEa_1(prob);
+    }
+    
+    {
+      UInt32 delta = ((UInt32)((kEndPosModelIndex / 2 - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
+      for (slot = kEndPosModelIndex / 2; slot < distTableSize2; slot++)
+      {
+        posSlotPrices[(size_t)slot * 2    ] += delta;
+        posSlotPrices[(size_t)slot * 2 + 1] += delta;
+        delta += ((UInt32)1 << kNumBitPriceShiftBits);
+      }
     }
-    for (posSlot = kEndPosModelIndex; posSlot < distTableSize; posSlot++)
-      posSlotPrices[posSlot] += ((UInt32)(((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
 
     {
-      UInt32 *distancesPrices = p->distancesPrices[lenToPosState];
-      {
-        distancesPrices[0] = posSlotPrices[0];
-        distancesPrices[1] = posSlotPrices[1];
-        distancesPrices[2] = posSlotPrices[2];
-        distancesPrices[3] = posSlotPrices[3];
-      }
+      UInt32 *dp = p->distancesPrices[lps];
+      
+      dp[0] = posSlotPrices[0];
+      dp[1] = posSlotPrices[1];
+      dp[2] = posSlotPrices[2];
+      dp[3] = posSlotPrices[3];
+
       for (i = 4; i < kNumFullDistances; i += 2)
       {
         UInt32 slotPrice = posSlotPrices[GetPosSlot1(i)];
-        distancesPrices[i    ] = slotPrice + tempPrices[i];
-        distancesPrices[i + 1] = slotPrice + tempPrices[i + 1];
+        dp[i    ] = slotPrice + tempPrices[i];
+        dp[i + 1] = slotPrice + tempPrices[i + 1];
       }
     }
   }
+  // }
 }
 
 
@@ -2245,10 +2412,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
         if (len != 1)
         {
           LenEnc_Encode(&p->repLenProbs, &p->rc, len - LZMA_MATCH_LEN_MIN, posState);
-          if (!p->fastMode)
-            if (--p->repLenEnc.counters[posState] == 0)
-              LenPriceEnc_UpdateTable(&p->repLenEnc, posState, &p->repLenProbs, p->ProbPrices);
-
+          --p->repLenEncCounter;
           p->state = kRepNextStates[p->state];
         }
       }
@@ -2260,9 +2424,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
         p->state = kMatchNextStates[p->state];
 
         LenEnc_Encode(&p->lenProbs, &p->rc, len - LZMA_MATCH_LEN_MIN, posState);
-        if (!p->fastMode)
-          if (--p->lenEnc.counters[posState] == 0)
-            LenPriceEnc_UpdateTable(&p->lenEnc, posState, &p->lenProbs, p->ProbPrices);
+        // --p->lenEnc.counter;
 
         dist -= LZMA_NUM_REPS;
         p->reps[3] = p->reps[2];
@@ -2274,17 +2436,17 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
         GetPosSlot(dist, posSlot);
         // RcTree_Encode_PosSlot(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], posSlot);
         {
-          UInt32 symbol = posSlot + (1 << kNumPosSlotBits);
+          UInt32 sym = (UInt32)posSlot + (1 << kNumPosSlotBits);
           range = p->rc.range;
           probs = p->posSlotEncoder[GetLenToPosState(len)];
           do
           {
-            CLzmaProb *prob = probs + (symbol >> kNumPosSlotBits);
-            UInt32 bit = (symbol >> (kNumPosSlotBits - 1)) & 1;
-            symbol <<= 1;
+            CLzmaProb *prob = probs + (sym >> kNumPosSlotBits);
+            UInt32 bit = (sym >> (kNumPosSlotBits - 1)) & 1;
+            sym <<= 1;
             RC_BIT(&p->rc, prob, bit);
           }
-          while (symbol < (1 << kNumPosSlotBits * 2));
+          while (sym < (1 << kNumPosSlotBits * 2));
           p->rc.range = range;
         }
         
@@ -2295,7 +2457,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
           if (dist < kNumFullDistances)
           {
             unsigned base = ((2 | (posSlot & 1)) << footerBits);
-            RcTree_ReverseEncode(&p->rc, p->posEncoders + base, footerBits, dist - base);
+            RcTree_ReverseEncode(&p->rc, p->posEncoders + base, footerBits, (unsigned)(dist /* - base */));
           }
           else
           {
@@ -2331,14 +2493,14 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
               bit = dist & 1; dist >>= 1; RC_BIT(&p->rc, p->posAlignEncoder + m, bit); m = (m << 1) + bit;
               bit = dist & 1;             RC_BIT(&p->rc, p->posAlignEncoder + m, bit);
               p->rc.range = range;
-              p->alignPriceCount++;
+              // p->alignPriceCount++;
             }
           }
         }
       }
     }
 
-    nowPos32 += len;
+    nowPos32 += (UInt32)len;
     p->additionalOffset -= len;
     
     if (p->additionalOffset == 0)
@@ -2347,10 +2509,27 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpa
 
       if (!p->fastMode)
       {
-        if (p->matchPriceCount >= (1 << 7))
-          FillDistancesPrices(p);
-        if (p->alignPriceCount >= kAlignTableSize)
+        /*
+        if (p->alignPriceCount >= 16) // kAlignTableSize
           FillAlignPrices(p);
+        if (p->matchPriceCount >= 128)
+          FillDistancesPrices(p);
+        if (p->lenEnc.counter <= 0)
+          LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices);
+        */
+        if (p->matchPriceCount >= 64)
+        {
+          FillAlignPrices(p);
+          // { int y; for (y = 0; y < 100; y++) {
+          FillDistancesPrices(p);
+          // }}
+          LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices);
+        }
+        if (p->repLenEncCounter <= 0)
+        {
+          p->repLenEncCounter = REP_LEN_COUNT;
+          LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, &p->repLenProbs, p->ProbPrices);
+        }
       }
     
       if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
@@ -2490,12 +2669,19 @@ void LzmaEnc_Init(CLzmaEnc *p)
 
   p->optEnd = 0;
   p->optCur = 0;
+
+  {
+    for (i = 0; i < kNumOpts; i++)
+      p->opt[i].price = kInfinityPrice;
+  }
+
   p->additionalOffset = 0;
 
   p->pbMask = (1 << p->pb) - 1;
   p->lpMask = ((UInt32)0x100 << p->lp) - ((unsigned)0x100 >> p->lc);
 }
 
+
 void LzmaEnc_InitPrices(CLzmaEnc *p)
 {
   if (!p->fastMode)
@@ -2507,6 +2693,9 @@ void LzmaEnc_InitPrices(CLzmaEnc *p)
   p->lenEnc.tableSize =
   p->repLenEnc.tableSize =
       p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;
+
+  p->repLenEncCounter = REP_LEN_COUNT;
+
   LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices);
   LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, &p->repLenProbs, p->ProbPrices);
 }
@@ -2583,7 +2772,7 @@ typedef struct
   ISeqOutStream vt;
   Byte *data;
   SizeT rem;
-  Bool overflow;
+  BoolInt overflow;
 } CLzmaEnc_SeqOutStreamBuf;
 
 static size_t SeqOutStreamBuf_Write(const ISeqOutStream *pp, const void *data, size_t size)
@@ -2615,7 +2804,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
 }
 
 
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, BoolInt reInit,
     Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
 {
   CLzmaEnc *p = (CLzmaEnc *)pp;
diff --git a/code/ryzom/client/src/seven_zip/Ppmd7.cpp b/code/ryzom/client/src/seven_zip/Ppmd7.cpp
index 0951a7c74..470aadccf 100644
--- a/code/ryzom/client/src/seven_zip/Ppmd7.cpp
+++ b/code/ryzom/client/src/seven_zip/Ppmd7.cpp
@@ -1,5 +1,5 @@
 /* Ppmd7.c -- PPMdH codec
-2017-04-03 : Igor Pavlov : Public domain
+2018-07-04 : Igor Pavlov : Public domain
 This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
 
 #include "Precomp.h"
@@ -95,7 +95,7 @@ void Ppmd7_Free(CPpmd7 *p, ISzAllocPtr alloc)
   p->Base = 0;
 }
 
-Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAllocPtr alloc)
+BoolInt Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAllocPtr alloc)
 {
   if (!p->Base || p->Size != size)
   {
@@ -342,7 +342,7 @@ void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder)
   p->DummySee.Count = 64; /* unused */
 }
 
-static CTX_PTR CreateSuccessors(CPpmd7 *p, Bool skip)
+static CTX_PTR CreateSuccessors(CPpmd7 *p, BoolInt skip)
 {
   CPpmd_State upState;
   CTX_PTR c = p->MinContext;
diff --git a/code/ryzom/client/src/seven_zip/Ppmd7.h b/code/ryzom/client/src/seven_zip/Ppmd7.h
index 45002d95b..610539a04 100644
--- a/code/ryzom/client/src/seven_zip/Ppmd7.h
+++ b/code/ryzom/client/src/seven_zip/Ppmd7.h
@@ -1,5 +1,5 @@
 /* Ppmd7.h -- PPMdH compression codec
-2017-04-03 : Igor Pavlov : Public domain
+2018-07-04 : Igor Pavlov : Public domain
 This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
 
 /* This code supports virtual RangeDecoder and includes the implementation
@@ -60,7 +60,7 @@ typedef struct
 } CPpmd7;
 
 void Ppmd7_Construct(CPpmd7 *p);
-Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAllocPtr alloc);
+BoolInt Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAllocPtr alloc);
 void Ppmd7_Free(CPpmd7 *p, ISzAllocPtr alloc);
 void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder);
 #define Ppmd7_WasAllocated(p) ((p)->Base != NULL)
@@ -115,7 +115,7 @@ typedef struct
 } CPpmd7z_RangeDec;
 
 void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p);
-Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p);
+BoolInt Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p);
 #define Ppmd7z_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
 
 int Ppmd7_DecodeSymbol(CPpmd7 *p, const IPpmd7_RangeDec *rc);
diff --git a/code/ryzom/client/src/seven_zip/Ppmd7Dec.cpp b/code/ryzom/client/src/seven_zip/Ppmd7Dec.cpp
index 7953bb07c..311e9f9dd 100644
--- a/code/ryzom/client/src/seven_zip/Ppmd7Dec.cpp
+++ b/code/ryzom/client/src/seven_zip/Ppmd7Dec.cpp
@@ -1,5 +1,5 @@
 /* Ppmd7Dec.c -- PPMdH Decoder
-2017-04-03 : Igor Pavlov : Public domain
+2018-07-04 : Igor Pavlov : Public domain
 This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
 
 #include "Precomp.h"
@@ -8,7 +8,7 @@ This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
 
 #define kTopValue (1 << 24)
 
-Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p)
+BoolInt Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p)
 {
   unsigned i;
   p->Code = 0;
diff --git a/code/ryzom/client/src/seven_zip/Precomp.h b/code/ryzom/client/src/seven_zip/Precomp.h
index fa36461bd..dcaf49475 100644
--- a/code/ryzom/client/src/seven_zip/Precomp.h
+++ b/code/ryzom/client/src/seven_zip/Precomp.h
@@ -8,6 +8,7 @@
 	#define _CRTDBG_MAP_ALLOC
 	#include <stdlib.h>
 	#include <crtdbg.h>
+	#define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__)
 #endif
 
 #define _7ZIP_ST
diff --git a/code/ryzom/client/src/seven_zip/Xz.h b/code/ryzom/client/src/seven_zip/Xz.h
index ef067e0e4..544ee18f2 100644
--- a/code/ryzom/client/src/seven_zip/Xz.h
+++ b/code/ryzom/client/src/seven_zip/Xz.h
@@ -1,5 +1,5 @@
 /* Xz.h - Xz interface
-2018-02-28 : Igor Pavlov : Public domain */
+2018-07-04 : Igor Pavlov : Public domain */
 
 #ifndef __XZ_H
 #define __XZ_H
@@ -53,7 +53,7 @@ typedef struct
 #define XzBlock_HasUnsupportedFlags(p) (((p)->flags & ~(XZ_BF_NUM_FILTERS_MASK | XZ_BF_PACK_SIZE | XZ_BF_UNPACK_SIZE)) != 0)
 
 SRes XzBlock_Parse(CXzBlock *p, const Byte *header);
-SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, Bool *isIndex, UInt32 *headerSizeRes);
+SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, BoolInt *isIndex, UInt32 *headerSizeRes);
 
 /* ---------- xz stream ---------- */
 
@@ -186,10 +186,10 @@ typedef struct
   Byte *outBuf;
   size_t outBufSize;
   size_t outWritten; // is equal to lzmaDecoder.dicPos (in outBuf mode)
-  Bool wasFinished;
+  BoolInt wasFinished;
   SRes res;
   ECoderStatus status;
-  // Bool SingleBufMode;
+  // BoolInt SingleBufMode;
   
   int finished[MIXCODER_NUM_FILTERS_MAX - 1];
   size_t pos[MIXCODER_NUM_FILTERS_MAX - 1];
@@ -241,9 +241,9 @@ typedef struct
   CXzCheck check;
   CSha256 sha;
 
-  Bool parseMode;
-  Bool headerParsedOk;
-  Bool decodeToStreamSignature;
+  BoolInt parseMode;
+  BoolInt headerParsedOk;
+  BoolInt decodeToStreamSignature;
   unsigned decodeOnlyOneBlock;
 
   Byte *outBuf;
@@ -335,7 +335,7 @@ SRes XzUnpacker_CodeFull(CXzUnpacker *p, Byte *dest, SizeT *destLen,
     const Byte *src, SizeT *srcLen,
     ECoderFinishMode finishMode, ECoderStatus *status);
 
-Bool XzUnpacker_IsStreamWasFinished(const CXzUnpacker *p);
+BoolInt XzUnpacker_IsStreamWasFinished(const CXzUnpacker *p);
 
 /*
 XzUnpacker_GetExtraSize() returns then number of uncofirmed bytes,
@@ -365,7 +365,7 @@ UInt64 XzUnpacker_GetExtraSize(const CXzUnpacker *p);
 */
 
 void XzUnpacker_PrepareToRandomBlockDecoding(CXzUnpacker *p);
-Bool XzUnpacker_IsBlockFinished(const CXzUnpacker *p);
+BoolInt XzUnpacker_IsBlockFinished(const CXzUnpacker *p);
 
 #define XzUnpacker_GetPackSizeForIndex(p) ((p)->packSize + (p)->blockHeaderSize + XzFlags_GetCheckSize((p)->streamFlags))
 
@@ -378,7 +378,7 @@ typedef struct
 {
   size_t inBufSize_ST;
   size_t outStep_ST;
-  Bool ignoreErrors;
+  BoolInt ignoreErrors;
   
   #ifndef _7ZIP_ST
   unsigned numThreads;
diff --git a/code/ryzom/client/src/seven_zip/XzDec.cpp b/code/ryzom/client/src/seven_zip/XzDec.cpp
index e2c2a4667..395e83f67 100644
--- a/code/ryzom/client/src/seven_zip/XzDec.cpp
+++ b/code/ryzom/client/src/seven_zip/XzDec.cpp
@@ -1,5 +1,5 @@
 /* XzDec.c -- Xz Decode
-2018-04-24 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -245,7 +245,7 @@ SRes BraState_SetFromMethod(IStateCoder *p, UInt64 id, int encodeMode, ISzAllocP
   CBraState *decoder;
   if (id < XZ_ID_Delta || id > XZ_ID_SPARC)
     return SZ_ERROR_UNSUPPORTED;
-  decoder = (CBraState*)p->p;
+  decoder = (CBraState *)p->p;
   if (!decoder)
   {
     decoder = (CBraState *)ISzAlloc_Alloc(alloc, sizeof(CBraState));
@@ -341,7 +341,7 @@ static SRes SbState_SetFromMethod(IStateCoder *p, ISzAllocPtr alloc)
 typedef struct
 {
   CLzma2Dec decoder;
-  Bool outBufMode;
+  BoolInt outBufMode;
 } CLzma2Dec_Spec;
 
 
@@ -637,8 +637,8 @@ static SRes MixCoder_Code(CMixCoder *p,
 
   for (;;)
   {
-    Bool processed = False;
-    Bool allFinished = True;
+    BoolInt processed = False;
+    BoolInt allFinished = True;
     SRes resMain = SZ_OK;
     unsigned i;
 
@@ -761,7 +761,7 @@ SRes Xz_ParseHeader(CXzStreamFlags *p, const Byte *buf)
   return XzFlags_IsSupported(*p) ? SZ_OK : SZ_ERROR_UNSUPPORTED;
 }
 
-static Bool Xz_CheckFooter(CXzStreamFlags flags, UInt64 indexSize, const Byte *buf)
+static BoolInt Xz_CheckFooter(CXzStreamFlags flags, UInt64 indexSize, const Byte *buf)
 {
   return indexSize == (((UInt64)GetUi32(buf + 4) + 1) << 2)
       && GetUi32(buf) == CrcCalc(buf + 4, 6)
@@ -775,7 +775,7 @@ static Bool Xz_CheckFooter(CXzStreamFlags flags, UInt64 indexSize, const Byte *b
   if (s == 0) return SZ_ERROR_ARCHIVE; pos += s; }
 
 
-static Bool XzBlock_AreSupportedFilters(const CXzBlock *p)
+static BoolInt XzBlock_AreSupportedFilters(const CXzBlock *p)
 {
   unsigned numFilters = XzBlock_GetNumFilters(p) - 1;
   unsigned i;
@@ -866,7 +866,7 @@ SRes XzBlock_Parse(CXzBlock *p, const Byte *header)
 static SRes XzDecMix_Init(CMixCoder *p, const CXzBlock *block, Byte *outBuf, size_t outBufSize)
 {
   unsigned i;
-  Bool needReInit = True;
+  BoolInt needReInit = True;
   unsigned numFilters = XzBlock_GetNumFilters(block);
 
   if (numFilters == p->numCoders && ((p->outBuf && outBuf) || (!p->outBuf && !outBuf)))
@@ -999,8 +999,8 @@ SRes XzUnpacker_Code(CXzUnpacker *p, Byte *dest, SizeT *destLen,
       SRes res;
 
       ECoderFinishMode finishMode2 = finishMode;
-      Bool srcFinished2 = srcFinished;
-      Bool destFinish = False;
+      BoolInt srcFinished2 = srcFinished;
+      BoolInt destFinish = False;
 
       if (p->block.packSize != (UInt64)(Int64)-1)
       {
@@ -1346,12 +1346,12 @@ SRes XzUnpacker_CodeFull(CXzUnpacker *p, Byte *dest, SizeT *destLen,
 }
 
 
-Bool XzUnpacker_IsBlockFinished(const CXzUnpacker *p)
+BoolInt XzUnpacker_IsBlockFinished(const CXzUnpacker *p)
 {
   return (p->state == XZ_STATE_BLOCK_HEADER) && (p->pos == 0);
 }
 
-Bool XzUnpacker_IsStreamWasFinished(const CXzUnpacker *p)
+BoolInt XzUnpacker_IsStreamWasFinished(const CXzUnpacker *p)
 {
   return (p->state == XZ_STATE_STREAM_PADDING) && (((UInt32)p->padSize & 3) == 0);
 }
@@ -1423,18 +1423,18 @@ typedef struct
   size_t outCodeSize;
   ECoderStatus status;
   SRes codeRes;
-  Bool skipMode;
-  // Bool finishedWithMark;
+  BoolInt skipMode;
+  // BoolInt finishedWithMark;
   EMtDecParseState parseState;
-  Bool parsing_Truncated;
-  Bool atBlockHeader;
+  BoolInt parsing_Truncated;
+  BoolInt atBlockHeader;
   CXzStreamFlags streamFlags;
   // UInt64 numFinishedStreams
   UInt64 numStreams;
   UInt64 numTotalBlocks;
   UInt64 numBlocks;
 
-  Bool dec_created;
+  BoolInt dec_created;
   CXzUnpacker dec;
 
   Byte mtPad[1 << 7];
@@ -1458,14 +1458,14 @@ typedef struct
   ICompressProgress *progress;
   // CXzStatInfo *stat;
 
-  Bool finishMode;
-  Bool outSize_Defined;
+  BoolInt finishMode;
+  BoolInt outSize_Defined;
   UInt64 outSize;
 
   UInt64 outProcessed;
   UInt64 inProcessed;
   UInt64 readProcessed;
-  Bool readWasFinished;
+  BoolInt readWasFinished;
   SRes readRes;
   SRes writeRes;
 
@@ -1473,14 +1473,14 @@ typedef struct
   size_t outBufSize;
   Byte *inBuf;
   size_t inBufSize;
-  Bool dec_created;
+
   CXzUnpacker dec;
 
   ECoderStatus status;
   SRes codeRes;
 
   #ifndef _7ZIP_ST
-  Bool mainDecoderWasCalled;
+  BoolInt mainDecoderWasCalled;
   // int statErrorDefined;
   int finishedDecoderIndex;
 
@@ -1494,12 +1494,12 @@ typedef struct
   // UInt64 numBadBlocks;
   SRes mainErrorCode;
 
-  Bool isBlockHeaderState_Parse;
-  Bool isBlockHeaderState_Write;
+  BoolInt isBlockHeaderState_Parse;
+  BoolInt isBlockHeaderState_Write;
   UInt64 outProcessed_Parse;
-  Bool parsing_Truncated;
+  BoolInt parsing_Truncated;
 
-  Bool mtc_WasConstructed;
+  BoolInt mtc_WasConstructed;
   CMtDec mtc;
   CXzDecMtThread coders[MTDEC__THREADS_MAX];
   #endif
@@ -1525,7 +1525,8 @@ CXzDecMtHandle XzDecMt_Create(ISzAllocPtr alloc, ISzAllocPtr allocMid)
   p->outBufSize = 0;
   p->inBuf = NULL;
   p->inBufSize = 0;
-  p->dec_created = False;
+
+  XzUnpacker_Construct(&p->dec, &p->alignOffsetAlloc.vt);
 
   p->unpackBlockMaxSize = 0;
 
@@ -1573,11 +1574,7 @@ static void XzDecMt_FreeOutBufs(CXzDecMt *p)
 
 static void XzDecMt_FreeSt(CXzDecMt *p)
 {
-  if (p->dec_created)
-  {
-    XzUnpacker_Free(&p->dec);
-    p->dec_created = False;
-  }
+  XzUnpacker_Free(&p->dec);
   
   if (p->outBuf)
   {
@@ -1968,11 +1965,11 @@ static SRes XzDecMt_Callback_Code(void *pp, unsigned coderIndex,
 #define XZDECMT_STREAM_WRITE_STEP (1 << 24)
 
 static SRes XzDecMt_Callback_Write(void *pp, unsigned coderIndex,
-    Bool needWriteToStream,
+    BoolInt needWriteToStream,
     const Byte *src, size_t srcSize,
     // int srcFinished,
-    Bool *needContinue,
-    Bool *canRecode)
+    BoolInt *needContinue,
+    BoolInt *canRecode)
 {
   CXzDecMt *me = (CXzDecMt *)pp;
   const CXzDecMtThread *coder = &me->coders[coderIndex];
@@ -2302,7 +2299,7 @@ void XzStatInfo_Clear(CXzStatInfo *p)
 
 static SRes XzDecMt_Decode_ST(CXzDecMt *p
     #ifndef _7ZIP_ST
-    , Bool tMode
+    , BoolInt tMode
     #endif
     , CXzStatInfo *stat)
 {
@@ -2358,7 +2355,7 @@ static SRes XzDecMt_Decode_ST(CXzDecMt *p
   for (;;)
   {
     SizeT outSize;
-    Bool finished;
+    BoolInt finished;
     ECoderFinishMode finishMode;
     SizeT inProcessed;
     ECoderStatus status;
@@ -2466,7 +2463,7 @@ static SRes XzStatInfo_SetStat(const CXzUnpacker *dec,
     int finishMode,
     UInt64 readProcessed, UInt64 inProcessed,
     SRes res, ECoderStatus status,
-    Bool decodingTruncated,
+    BoolInt decodingTruncated,
     CXzStatInfo *stat)
 {
   UInt64 extraSize;
@@ -2531,7 +2528,7 @@ SRes XzDecMt_Decode(CXzDecMtHandle pp,
 {
   CXzDecMt *p = (CXzDecMt *)pp;
   #ifndef _7ZIP_ST
-  Bool tMode;
+  BoolInt tMode;
   #endif
 
   XzStatInfo_Clear(stat);
@@ -2564,13 +2561,7 @@ SRes XzDecMt_Decode(CXzDecMtHandle pp,
   p->codeRes = 0;
   p->status = CODER_STATUS_NOT_SPECIFIED;
 
-  if (!p->dec_created)
-  {
-    XzUnpacker_Construct(&p->dec, &p->alignOffsetAlloc.vt);
-    p->dec_created = True;
-  }
   XzUnpacker_Init(&p->dec);
-  
 
   *isMT = False;
 
@@ -2600,6 +2591,8 @@ SRes XzDecMt_Decode(CXzDecMtHandle pp,
   {
     IMtDecCallback vt;
 
+    // we just free ST buffers here
+    // but we still keep state variables, that was set in XzUnpacker_Init()
     XzDecMt_FreeSt(p);
 
     p->outProcessed_Parse = 0;
@@ -2636,7 +2629,7 @@ SRes XzDecMt_Decode(CXzDecMtHandle pp,
     vt.Write = XzDecMt_Callback_Write;
 
     {
-      Bool needContinue;
+      BoolInt needContinue;
       
       SRes res = MtDec_Code(&p->mtc);
 
@@ -2665,7 +2658,7 @@ SRes XzDecMt_Decode(CXzDecMtHandle pp,
       if (!needContinue)
       {
         SRes codeRes;
-        Bool truncated = False;
+        BoolInt truncated = False;
         ECoderStatus status;
         CXzUnpacker *dec;
 
diff --git a/code/ryzom/client/src/seven_zip/XzEnc.cpp b/code/ryzom/client/src/seven_zip/XzEnc.cpp
index 9a67cb55e..d0a8b4489 100644
--- a/code/ryzom/client/src/seven_zip/XzEnc.cpp
+++ b/code/ryzom/client/src/seven_zip/XzEnc.cpp
@@ -1,5 +1,5 @@
 /* XzEnc.c -- Xz Encode
-2018-04-28 : Igor Pavlov : Public domain */
+2019-02-02 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -814,7 +814,7 @@ static SRes Xz_CompressBlock(
     SRes res;
     Byte *outBuf = NULL;
     size_t outSize = 0;
-    Bool useStream = (fp || inStream);
+    BoolInt useStream = (fp || inStream);
     // useStream = True;
     
     if (!useStream)
@@ -940,7 +940,7 @@ typedef struct
   #ifndef _7ZIP_ST
   unsigned checkType;
   ISeqOutStream *outStream;
-  Bool mtCoder_WasConstructed;
+  BoolInt mtCoder_WasConstructed;
   CMtCoder mtCoder;
   CXzEncBlockInfo EncBlocks[MTCODER__BLOCKS_MAX];
   #endif
diff --git a/code/ryzom/client/src/seven_zip/XzIn.cpp b/code/ryzom/client/src/seven_zip/XzIn.cpp
index 3a1b71dcf..ff48e2dd4 100644
--- a/code/ryzom/client/src/seven_zip/XzIn.cpp
+++ b/code/ryzom/client/src/seven_zip/XzIn.cpp
@@ -1,5 +1,5 @@
 /* XzIn.c - Xz input
-2018-02-02 : Igor Pavlov : Public domain */
+2018-07-04 : Igor Pavlov : Public domain */
 
 #include "Precomp.h"
 
@@ -28,7 +28,7 @@ SRes Xz_ReadHeader(CXzStreamFlags *p, ISeqInStream *inStream)
   { unsigned s = Xz_ReadVarInt(buf + pos, size - pos, res); \
   if (s == 0) return SZ_ERROR_ARCHIVE; pos += s; }
 
-SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, Bool *isIndex, UInt32 *headerSizeRes)
+SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, BoolInt *isIndex, UInt32 *headerSizeRes)
 {
   Byte header[XZ_BLOCK_HEADER_SIZE_MAX];
   unsigned headerSize;
diff --git a/code/ryzom/client/src/seven_zip/seven_zip.cpp b/code/ryzom/client/src/seven_zip/seven_zip.cpp
index c4e2f289e..c52c790e9 100644
--- a/code/ryzom/client/src/seven_zip/seven_zip.cpp
+++ b/code/ryzom/client/src/seven_zip/seven_zip.cpp
@@ -35,6 +35,10 @@
 using namespace std;
 using namespace NLMISC;
 
+#ifdef DEBUG_NEW
+#define new DEBUG_NEW
+#endif
+
 
 /// Input stream class for 7zip archive
 class CNel7ZipInStream : public ISeekInStream
@@ -110,18 +114,20 @@ bool unpack7Zip(const std::string &sevenZipFile, const std::string &destFileName
 	lookStream.realStream = &inStr;
 	LookToRead2_CreateVTable(&lookStream, False);
 
+	size_t bufferSize = 1024;
+
 	{
-		lookStream.buf = (Byte*)ISzAlloc_Alloc(&allocImp, 1024);
+		lookStream.buf = (Byte*)ISzAlloc_Alloc(&allocImp, bufferSize);
 
 		if (!lookStream.buf)
 		{
+			nlerror("Unable to allocate %zu bytes", bufferSize);
+			return false;
 		}
-		else
-		{
-			lookStream.bufSize = 1024;
-			lookStream.realStream = &inStr;
-			LookToRead2_Init(&lookStream);
-		}
+
+		lookStream.bufSize = bufferSize;
+		lookStream.realStream = &inStr;
+		LookToRead2_Init(&lookStream);
 	}
 
 	CrcGenerateTable();