Merge branch 'master' into Sync-weave

1 files changed, 2787 insertions, 0 deletions

diff --git a/other-licenses/7zstub/src/C/LzmaEnc.c b/other-licenses/7zstub/src/C/LzmaEnc.c
new file mode 100644
index 000000000..bebe664d3
--- /dev/null
+++ b/other-licenses/7zstub/src/C/LzmaEnc.c
@@ -0,0 +1,2787 @@
+/* LzmaEnc.c -- LZMA Encoder

+2018-04-29 : Igor Pavlov : Public domain */

+

+#include "Precomp.h"

+

+#include <string.h>

+

+/* #define SHOW_STAT */

+/* #define SHOW_STAT2 */

+

+#if defined(SHOW_STAT) || defined(SHOW_STAT2)

+#include <stdio.h>

+#endif

+

+#include "LzmaEnc.h"

+

+#include "LzFind.h"

+#ifndef _7ZIP_ST

+#include "LzFindMt.h"

+#endif

+

+#ifdef SHOW_STAT

+static unsigned g_STAT_OFFSET = 0;

+#endif

+

+#define kLzmaMaxHistorySize ((UInt32)3 << 29)

+/* #define kLzmaMaxHistorySize ((UInt32)7 << 29) */

+

+#define kNumTopBits 24

+#define kTopValue ((UInt32)1 << kNumTopBits)

+

+#define kNumBitModelTotalBits 11

+#define kBitModelTotal (1 << kNumBitModelTotalBits)

+#define kNumMoveBits 5

+#define kProbInitValue (kBitModelTotal >> 1)

+

+#define kNumMoveReducingBits 4

+#define kNumBitPriceShiftBits 4

+#define kBitPrice (1 << kNumBitPriceShiftBits)

+

+void LzmaEncProps_Init(CLzmaEncProps *p)

+{

+  p->level = 5;

+  p->dictSize = p->mc = 0;

+  p->reduceSize = (UInt64)(Int64)-1;

+  p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;

+  p->writeEndMark = 0;

+}

+

+void LzmaEncProps_Normalize(CLzmaEncProps *p)

+{

+  int level = p->level;

+  if (level < 0) level = 5;

+  p->level = level;

+  

+  if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level <= 7 ? (1 << 25) : (1 << 26)));

+  if (p->dictSize > p->reduceSize)

+  {

+    unsigned i;

+    UInt32 reduceSize = (UInt32)p->reduceSize;

+    for (i = 11; i <= 30; i++)

+    {

+      if (reduceSize <= ((UInt32)2 << i)) { p->dictSize = ((UInt32)2 << i); break; }

+      if (reduceSize <= ((UInt32)3 << i)) { p->dictSize = ((UInt32)3 << i); break; }

+    }

+  }

+

+  if (p->lc < 0) p->lc = 3;

+  if (p->lp < 0) p->lp = 0;

+  if (p->pb < 0) p->pb = 2;

+

+  if (p->algo < 0) p->algo = (level < 5 ? 0 : 1);

+  if (p->fb < 0) p->fb = (level < 7 ? 32 : 64);

+  if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1);

+  if (p->numHashBytes < 0) p->numHashBytes = 4;

+  if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);

+  

+  if (p->numThreads < 0)

+    p->numThreads =

+      #ifndef _7ZIP_ST

+      ((p->btMode && p->algo) ? 2 : 1);

+      #else

+      1;

+      #endif

+}

+

+UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)

+{

+  CLzmaEncProps props = *props2;

+  LzmaEncProps_Normalize(&props);

+  return props.dictSize;

+}

+

+#if (_MSC_VER >= 1400)

+/* BSR code is fast for some new CPUs */

+/* #define LZMA_LOG_BSR */

+#endif

+

+#ifdef LZMA_LOG_BSR

+

+#define kDicLogSizeMaxCompress 32

+

+#define BSR2_RET(pos, res) { unsigned long zz; _BitScanReverse(&zz, (pos)); res = (zz + zz) + ((pos >> (zz - 1)) & 1); }

+

+static unsigned GetPosSlot1(UInt32 pos)

+{

+  unsigned res;

+  BSR2_RET(pos, res);

+  return res;

+}

+#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }

+#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); }

+

+#else

+

+#define kNumLogBits (9 + sizeof(size_t) / 2)

+/* #define kNumLogBits (11 + sizeof(size_t) / 8 * 3) */

+

+#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)

+

+static void LzmaEnc_FastPosInit(Byte *g_FastPos)

+{

+  unsigned slot;

+  g_FastPos[0] = 0;

+  g_FastPos[1] = 1;

+  g_FastPos += 2;

+  

+  for (slot = 2; slot < kNumLogBits * 2; slot++)

+  {

+    size_t k = ((size_t)1 << ((slot >> 1) - 1));

+    size_t j;

+    for (j = 0; j < k; j++)

+      g_FastPos[j] = (Byte)slot;

+    g_FastPos += k;

+  }

+}

+

+/* we can use ((limit - pos) >> 31) only if (pos < ((UInt32)1 << 31)) */

+/*

+#define BSR2_RET(pos, res) { unsigned zz = 6 + ((kNumLogBits - 1) & \

+  (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \

+  res = p->g_FastPos[pos >> zz] + (zz * 2); }

+*/

+

+/*

+#define BSR2_RET(pos, res) { unsigned zz = 6 + ((kNumLogBits - 1) & \

+  (0 - (((((UInt32)1 << (kNumLogBits)) - 1) - (pos >> 6)) >> 31))); \

+  res = p->g_FastPos[pos >> zz] + (zz * 2); }

+*/

+

+#define BSR2_RET(pos, res) { unsigned zz = (pos < (1 << (kNumLogBits + 6))) ? 6 : 6 + kNumLogBits - 1; \

+  res = p->g_FastPos[pos >> zz] + (zz * 2); }

+

+/*

+#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \

+  p->g_FastPos[pos >> 6] + 12 : \

+  p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; }

+*/

+

+#define GetPosSlot1(pos) p->g_FastPos[pos]

+#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }

+#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos & (kNumFullDistances - 1)]; else BSR2_RET(pos, res); }

+

+#endif

+

+

+#define LZMA_NUM_REPS 4

+

+typedef UInt16 CState;

+typedef UInt16 CExtra;

+

+typedef struct

+{

+  UInt32 price;

+  CState state;

+  CExtra extra;

+      // 0   : normal

+      // 1   : LIT : MATCH

+      // > 1 : MATCH (extra-1) : LIT : REP0 (len)

+  UInt32 len;

+  UInt32 dist;

+  UInt32 reps[LZMA_NUM_REPS];

+} COptimal;

+

+

+#define kNumOpts (1 << 12)

+#define kPackReserve (1 + kNumOpts * 2)

+

+#define kNumLenToPosStates 4

+#define kNumPosSlotBits 6

+#define kDicLogSizeMin 0

+#define kDicLogSizeMax 32

+#define kDistTableSizeMax (kDicLogSizeMax * 2)

+

+#define kNumAlignBits 4

+#define kAlignTableSize (1 << kNumAlignBits)

+#define kAlignMask (kAlignTableSize - 1)

+

+#define kStartPosModelIndex 4

+#define kEndPosModelIndex 14

+#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))

+

+typedef

+#ifdef _LZMA_PROB32

+  UInt32

+#else

+  UInt16

+#endif

+  CLzmaProb;

+

+#define LZMA_PB_MAX 4

+#define LZMA_LC_MAX 8

+#define LZMA_LP_MAX 4

+

+#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX)

+

+#define kLenNumLowBits 3

+#define kLenNumLowSymbols (1 << kLenNumLowBits)

+#define kLenNumHighBits 8

+#define kLenNumHighSymbols (1 << kLenNumHighBits)

+#define kLenNumSymbolsTotal (kLenNumLowSymbols * 2 + kLenNumHighSymbols)

+

+#define LZMA_MATCH_LEN_MIN 2

+#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)

+

+#define kNumStates 12

+

+

+typedef struct

+{

+  CLzmaProb low[LZMA_NUM_PB_STATES_MAX << (kLenNumLowBits + 1)];

+  CLzmaProb high[kLenNumHighSymbols];

+} CLenEnc;

+

+

+typedef struct

+{

+  unsigned tableSize;

+  unsigned counters[LZMA_NUM_PB_STATES_MAX];

+  UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];

+} CLenPriceEnc;

+

+

+typedef struct

+{

+  UInt32 range;

+  unsigned cache;

+  UInt64 low;

+  UInt64 cacheSize;

+  Byte *buf;

+  Byte *bufLim;

+  Byte *bufBase;

+  ISeqOutStream *outStream;

+  UInt64 processed;

+  SRes res;

+} CRangeEnc;

+

+

+typedef struct

+{

+  CLzmaProb *litProbs;

+

+  unsigned state;

+  UInt32 reps[LZMA_NUM_REPS];

+

+  CLzmaProb posAlignEncoder[1 << kNumAlignBits];

+  CLzmaProb isRep[kNumStates];

+  CLzmaProb isRepG0[kNumStates];

+  CLzmaProb isRepG1[kNumStates];

+  CLzmaProb isRepG2[kNumStates];

+  CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];

+  CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];

+

+  CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];

+  CLzmaProb posEncoders[kNumFullDistances];

+  

+  CLenEnc lenProbs;

+  CLenEnc repLenProbs;

+

+} CSaveState;

+

+

+typedef UInt32 CProbPrice;

+

+

+typedef struct

+{

+  void *matchFinderObj;

+  IMatchFinder matchFinder;

+

+  unsigned optCur;

+  unsigned optEnd;

+

+  unsigned longestMatchLen;

+  unsigned numPairs;

+  UInt32 numAvail;

+

+  unsigned state;

+  unsigned numFastBytes;

+  unsigned additionalOffset;

+  UInt32 reps[LZMA_NUM_REPS];

+  unsigned lpMask, pbMask;

+  CLzmaProb *litProbs;

+  CRangeEnc rc;

+

+  UInt32 backRes;

+

+  unsigned lc, lp, pb;

+  unsigned lclp;

+

+  Bool fastMode;

+  Bool writeEndMark;

+  Bool finished;

+  Bool multiThread;

+  Bool needInit;

+

+  UInt64 nowPos64;

+  

+  unsigned matchPriceCount;

+  unsigned alignPriceCount;

+

+  unsigned distTableSize;

+

+  UInt32 dictSize;

+  SRes result;

+

+  #ifndef _7ZIP_ST

+  Bool mtMode;

+  // begin of CMatchFinderMt is used in LZ thread

+  CMatchFinderMt matchFinderMt;

+  // end of CMatchFinderMt is used in BT and HASH threads

+  #endif

+

+  CMatchFinder matchFinderBase;

+

+  #ifndef _7ZIP_ST

+  Byte pad[128];

+  #endif

+  

+  // LZ thread

+  CProbPrice ProbPrices[kBitModelTotal >> kNumMoveReducingBits];

+

+  UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];

+

+  UInt32 alignPrices[kAlignTableSize];

+  UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];

+  UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances];

+

+  CLzmaProb posAlignEncoder[1 << kNumAlignBits];

+  CLzmaProb isRep[kNumStates];

+  CLzmaProb isRepG0[kNumStates];

+  CLzmaProb isRepG1[kNumStates];

+  CLzmaProb isRepG2[kNumStates];

+  CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];

+  CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];

+  CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];

+  CLzmaProb posEncoders[kNumFullDistances];

+  

+  CLenEnc lenProbs;

+  CLenEnc repLenProbs;

+

+  #ifndef LZMA_LOG_BSR

+  Byte g_FastPos[1 << kNumLogBits];

+  #endif

+

+  CLenPriceEnc lenEnc;

+  CLenPriceEnc repLenEnc;

+

+  COptimal opt[kNumOpts];

+

+  CSaveState saveState;

+

+  #ifndef _7ZIP_ST

+  Byte pad2[128];

+  #endif

+} CLzmaEnc;

+

+

+

+#define COPY_ARR(dest, src, arr) memcpy(dest->arr, src->arr, sizeof(src->arr));

+

+void LzmaEnc_SaveState(CLzmaEncHandle pp)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  CSaveState *dest = &p->saveState;

+  

+  dest->state = p->state;

+  

+  dest->lenProbs = p->lenProbs;

+  dest->repLenProbs = p->repLenProbs;

+

+  COPY_ARR(dest, p, reps);

+

+  COPY_ARR(dest, p, posAlignEncoder);

+  COPY_ARR(dest, p, isRep);

+  COPY_ARR(dest, p, isRepG0);

+  COPY_ARR(dest, p, isRepG1);

+  COPY_ARR(dest, p, isRepG2);

+  COPY_ARR(dest, p, isMatch);

+  COPY_ARR(dest, p, isRep0Long);

+  COPY_ARR(dest, p, posSlotEncoder);

+  COPY_ARR(dest, p, posEncoders);

+

+  memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << p->lclp) * sizeof(CLzmaProb));

+}

+

+

+void LzmaEnc_RestoreState(CLzmaEncHandle pp)

+{

+  CLzmaEnc *dest = (CLzmaEnc *)pp;

+  const CSaveState *p = &dest->saveState;

+

+  dest->state = p->state;

+

+  dest->lenProbs = p->lenProbs;

+  dest->repLenProbs = p->repLenProbs;

+  

+  COPY_ARR(dest, p, reps);

+  

+  COPY_ARR(dest, p, posAlignEncoder);

+  COPY_ARR(dest, p, isRep);

+  COPY_ARR(dest, p, isRepG0);

+  COPY_ARR(dest, p, isRepG1);

+  COPY_ARR(dest, p, isRepG2);

+  COPY_ARR(dest, p, isMatch);

+  COPY_ARR(dest, p, isRep0Long);

+  COPY_ARR(dest, p, posSlotEncoder);

+  COPY_ARR(dest, p, posEncoders);

+

+  memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << dest->lclp) * sizeof(CLzmaProb));

+}

+

+

+

+SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  CLzmaEncProps props = *props2;

+  LzmaEncProps_Normalize(&props);

+

+  if (props.lc > LZMA_LC_MAX

+      || props.lp > LZMA_LP_MAX

+      || props.pb > LZMA_PB_MAX

+      || props.dictSize > ((UInt64)1 << kDicLogSizeMaxCompress)

+      || props.dictSize > kLzmaMaxHistorySize)

+    return SZ_ERROR_PARAM;

+

+  p->dictSize = props.dictSize;

+  {

+    unsigned fb = props.fb;

+    if (fb < 5)

+      fb = 5;

+    if (fb > LZMA_MATCH_LEN_MAX)

+      fb = LZMA_MATCH_LEN_MAX;

+    p->numFastBytes = fb;

+  }

+  p->lc = props.lc;

+  p->lp = props.lp;

+  p->pb = props.pb;

+  p->fastMode = (props.algo == 0);

+  p->matchFinderBase.btMode = (Byte)(props.btMode ? 1 : 0);

+  {

+    unsigned numHashBytes = 4;

+    if (props.btMode)

+    {

+      if (props.numHashBytes < 2)

+        numHashBytes = 2;

+      else if (props.numHashBytes < 4)

+        numHashBytes = props.numHashBytes;

+    }

+    p->matchFinderBase.numHashBytes = numHashBytes;

+  }

+

+  p->matchFinderBase.cutValue = props.mc;

+

+  p->writeEndMark = props.writeEndMark;

+

+  #ifndef _7ZIP_ST

+  /*

+  if (newMultiThread != _multiThread)

+  {

+    ReleaseMatchFinder();

+    _multiThread = newMultiThread;

+  }

+  */

+  p->multiThread = (props.numThreads > 1);

+  #endif

+

+  return SZ_OK;

+}

+

+

+void LzmaEnc_SetDataSize(CLzmaEncHandle pp, UInt64 expectedDataSiize)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  p->matchFinderBase.expectedDataSize = expectedDataSiize;

+}

+

+

+#define kState_Start 0

+#define kState_LitAfterMatch 4

+#define kState_LitAfterRep   5

+#define kState_MatchAfterLit 7

+#define kState_RepAfterLit   8

+

+static const Byte kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4,  5,  6,   4, 5};

+static const Byte kMatchNextStates[kNumStates]   = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};

+static const Byte kRepNextStates[kNumStates]     = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};

+static const Byte kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};

+

+#define IsLitState(s) ((s) < 7)

+#define GetLenToPosState2(len) (((len) < kNumLenToPosStates - 1) ? (len) : kNumLenToPosStates - 1)

+#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)

+

+#define kInfinityPrice (1 << 30)

+

+static void RangeEnc_Construct(CRangeEnc *p)

+{

+  p->outStream = NULL;

+  p->bufBase = NULL;

+}

+

+#define RangeEnc_GetProcessed(p)       ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)

+#define RangeEnc_GetProcessed_sizet(p) ((size_t)(p)->processed + ((p)->buf - (p)->bufBase) + (size_t)(p)->cacheSize)

+

+#define RC_BUF_SIZE (1 << 16)

+

+static int RangeEnc_Alloc(CRangeEnc *p, ISzAllocPtr alloc)

+{

+  if (!p->bufBase)

+  {

+    p->bufBase = (Byte *)ISzAlloc_Alloc(alloc, RC_BUF_SIZE);

+    if (!p->bufBase)

+      return 0;

+    p->bufLim = p->bufBase + RC_BUF_SIZE;

+  }

+  return 1;

+}

+

+static void RangeEnc_Free(CRangeEnc *p, ISzAllocPtr alloc)

+{

+  ISzAlloc_Free(alloc, p->bufBase);

+  p->bufBase = 0;

+}

+

+static void RangeEnc_Init(CRangeEnc *p)

+{

+  /* Stream.Init(); */

+  p->range = 0xFFFFFFFF;

+  p->cache = 0;

+  p->low = 0;

+  p->cacheSize = 0;

+

+  p->buf = p->bufBase;

+

+  p->processed = 0;

+  p->res = SZ_OK;

+}

+

+MY_NO_INLINE static void RangeEnc_FlushStream(CRangeEnc *p)

+{

+  size_t num;

+  if (p->res != SZ_OK)

+    return;

+  num = p->buf - p->bufBase;

+  if (num != ISeqOutStream_Write(p->outStream, p->bufBase, num))

+    p->res = SZ_ERROR_WRITE;

+  p->processed += num;

+  p->buf = p->bufBase;

+}

+

+MY_NO_INLINE static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)

+{

+  UInt32 low = (UInt32)p->low;

+  unsigned high = (unsigned)(p->low >> 32);

+  p->low = (UInt32)(low << 8);

+  if (low < (UInt32)0xFF000000 || high != 0)

+  {

+    {

+      Byte *buf = p->buf;

+      *buf++ = (Byte)(p->cache + high);

+      p->cache = (unsigned)(low >> 24);

+      p->buf = buf;

+      if (buf == p->bufLim)

+        RangeEnc_FlushStream(p);

+      if (p->cacheSize == 0)

+        return;

+    }

+    high += 0xFF;

+    for (;;)

+    {

+      Byte *buf = p->buf;

+      *buf++ = (Byte)(high);

+      p->buf = buf;

+      if (buf == p->bufLim)

+        RangeEnc_FlushStream(p);

+      if (--p->cacheSize == 0)

+        return;

+    }

+  }

+  p->cacheSize++;

+}

+

+static void RangeEnc_FlushData(CRangeEnc *p)

+{

+  int i;

+  for (i = 0; i < 5; i++)

+    RangeEnc_ShiftLow(p);

+}

+

+#define RC_NORM(p) if (range < kTopValue) { range <<= 8; RangeEnc_ShiftLow(p); }

+

+#define RC_BIT_PRE(p, prob) \

+  ttt = *(prob); \

+  newBound = (range >> kNumBitModelTotalBits) * ttt;

+

+// #define _LZMA_ENC_USE_BRANCH

+

+#ifdef _LZMA_ENC_USE_BRANCH

+

+#define RC_BIT(p, prob, symbol) { \

+  RC_BIT_PRE(p, prob) \

+  if (symbol == 0) { range = newBound; ttt += (kBitModelTotal - ttt) >> kNumMoveBits; } \

+  else { (p)->low += newBound; range -= newBound; ttt -= ttt >> kNumMoveBits; } \

+  *(prob) = (CLzmaProb)ttt; \

+  RC_NORM(p) \

+  }

+

+#else

+

+#define RC_BIT(p, prob, symbol) { \

+  UInt32 mask; \

+  RC_BIT_PRE(p, prob) \

+  mask = 0 - (UInt32)symbol; \

+  range &= mask; \

+  mask &= newBound; \

+  range -= mask; \

+  (p)->low += mask; \

+  mask = (UInt32)symbol - 1; \

+  range += newBound & mask; \

+  mask &= (kBitModelTotal - ((1 << kNumMoveBits) - 1)); \

+  mask += ((1 << kNumMoveBits) - 1); \

+  ttt += (Int32)(mask - ttt) >> kNumMoveBits; \

+  *(prob) = (CLzmaProb)ttt; \

+  RC_NORM(p) \

+  }

+

+#endif

+

+

+

+

+#define RC_BIT_0_BASE(p, prob) \

+  range = newBound; *(prob) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));

+

+#define RC_BIT_1_BASE(p, prob) \

+  range -= newBound; (p)->low += newBound; *(prob) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); \

+

+#define RC_BIT_0(p, prob) \

+  RC_BIT_0_BASE(p, prob) \

+  RC_NORM(p)

+

+#define RC_BIT_1(p, prob) \

+  RC_BIT_1_BASE(p, prob) \

+  RC_NORM(p)

+

+static void RangeEnc_EncodeBit_0(CRangeEnc *p, CLzmaProb *prob)

+{

+  UInt32 range, ttt, newBound;

+  range = p->range;

+  RC_BIT_PRE(p, prob)

+  RC_BIT_0(p, prob)

+  p->range = range;

+}

+

+static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol)

+{

+  UInt32 range = p->range;

+  symbol |= 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;

+    RC_BIT(p, prob, bit);

+  }

+  while (symbol < 0x10000);

+  p->range = range;

+}

+

+static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte)

+{

+  UInt32 range = p->range;

+  UInt32 offs = 0x100;

+  symbol |= 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);

+    RC_BIT(p, prob, bit);

+  }

+  while (symbol < 0x10000);

+  p->range = range;

+}

+

+

+

+static void LzmaEnc_InitPriceTables(CProbPrice *ProbPrices)

+{

+  UInt32 i;

+  for (i = 0; i < (kBitModelTotal >> kNumMoveReducingBits); i++)

+  {

+    const unsigned kCyclesBits = kNumBitPriceShiftBits;

+    UInt32 w = (i << kNumMoveReducingBits) + (1 << (kNumMoveReducingBits - 1));

+    unsigned bitCount = 0;

+    unsigned j;

+    for (j = 0; j < kCyclesBits; j++)

+    {

+      w = w * w;

+      bitCount <<= 1;

+      while (w >= ((UInt32)1 << 16))

+      {

+        w >>= 1;

+        bitCount++;

+      }

+    }

+    ProbPrices[i] = (CProbPrice)((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);

+    // printf("\n%3d: %5d", i, ProbPrices[i]);

+  }

+}

+

+

+#define GET_PRICE(prob, symbol) \

+  p->ProbPrices[((prob) ^ (unsigned)(((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];

+

+#define GET_PRICEa(prob, symbol) \

+     ProbPrices[((prob) ^ (unsigned)((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];

+

+#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits]

+#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]

+

+#define GET_PRICEa_0(prob) ProbPrices[(prob) >> kNumMoveReducingBits]

+#define GET_PRICEa_1(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]

+

+

+static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, const CProbPrice *ProbPrices)

+{

+  UInt32 price = 0;

+  symbol |= 0x100;

+  do

+  {

+    unsigned bit = symbol & 1;

+    symbol >>= 1;

+    price += GET_PRICEa(probs[symbol], bit);

+  }

+  while (symbol >= 2);

+  return price;

+}

+

+

+static UInt32 LitEnc_Matched_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, const CProbPrice *ProbPrices)

+{

+  UInt32 price = 0;

+  UInt32 offs = 0x100;

+  symbol |= 0x100;

+  do

+  {

+    matchByte <<= 1;

+    price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1);

+    symbol <<= 1;

+    offs &= ~(matchByte ^ symbol);

+  }

+  while (symbol < 0x10000);

+  return price;

+}

+

+

+static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, unsigned numBits, UInt32 symbol)

+{

+  UInt32 range = rc->range;

+  unsigned m = 1;

+  do

+  {

+    UInt32 ttt, newBound;

+    unsigned bit = symbol & 1;

+    // RangeEnc_EncodeBit(rc, probs + m, bit);

+    symbol >>= 1;

+    RC_BIT(rc, probs + m, bit);

+    m = (m << 1) | bit;

+  }

+  while (--numBits);

+  rc->range = range;

+}

+

+

+

+static void LenEnc_Init(CLenEnc *p)

+{

+  unsigned i;

+  for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << (kLenNumLowBits + 1)); i++)

+    p->low[i] = kProbInitValue;

+  for (i = 0; i < kLenNumHighSymbols; i++)

+    p->high[i] = kProbInitValue;

+}

+

+static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, unsigned symbol, unsigned posState)

+{

+  UInt32 range, ttt, newBound;

+  CLzmaProb *probs = p->low;

+  range = rc->range;

+  RC_BIT_PRE(rc, probs);

+  if (symbol >= kLenNumLowSymbols)

+  {

+    RC_BIT_1(rc, probs);

+    probs += kLenNumLowSymbols;

+    RC_BIT_PRE(rc, probs);

+    if (symbol >= 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);

+      return;

+    }

+    symbol -= kLenNumLowSymbols;

+  }

+

+  // RcTree_Encode(rc, probs + (posState << kLenNumLowBits), kLenNumLowBits, symbol);

+  {

+    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);

+    rc->range = range;

+  }

+}

+

+static void SetPrices_3(const CLzmaProb *probs, UInt32 startPrice, UInt32 *prices, const CProbPrice *ProbPrices)

+{

+  unsigned i;

+  for (i = 0; i < 8; i += 2)

+  {

+    UInt32 price = startPrice;

+    UInt32 prob;

+    price += GET_PRICEa(probs[1           ], (i >> 2));

+    price += GET_PRICEa(probs[2 + (i >> 2)], (i >> 1) & 1);

+    prob = probs[4 + (i >> 1)];

+    prices[i    ] = price + GET_PRICEa_0(prob);

+    prices[i + 1] = price + GET_PRICEa_1(prob);

+  }

+}

+

+

+MY_NO_INLINE static void MY_FAST_CALL LenPriceEnc_UpdateTable(

+    CLenPriceEnc *p, unsigned posState,

+    const CLenEnc *enc,

+    const CProbPrice *ProbPrices)

+{

+  // int y; for (y = 0; y < 100; y++) {

+  UInt32 a;

+  unsigned i, numSymbols;

+

+  UInt32 *prices = p->prices[posState];

+  {

+    const CLzmaProb *probs = enc->low + (posState << (1 + kLenNumLowBits));

+    SetPrices_3(probs, GET_PRICEa_0(enc->low[0]), prices, ProbPrices);

+    a = GET_PRICEa_1(enc->low[0]);

+    SetPrices_3(probs + kLenNumLowSymbols, a + GET_PRICEa_0(enc->low[kLenNumLowSymbols]), prices + kLenNumLowSymbols, ProbPrices);

+    a += GET_PRICEa_1(enc->low[kLenNumLowSymbols]);

+  }

+  numSymbols = p->tableSize;

+  p->counters[posState] = numSymbols;

+  for (i = kLenNumLowSymbols * 2; i < numSymbols; i += 1)

+  {

+    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);

+    */

+  }

+  // }

+}

+

+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;

+  printf("\n MovePos %u", num);

+  #endif

+*/

+  

+#define MOVE_POS(p, num) { \

+    p->additionalOffset += (num); \

+    p->matchFinder.Skip(p->matchFinderObj, (num)); }

+

+

+static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes)

+{

+  unsigned numPairs;

+  

+  p->additionalOffset++;

+  p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);

+  numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);

+  *numPairsRes = numPairs;

+  

+  #ifdef SHOW_STAT

+  printf("\n i = %u numPairs = %u    ", g_STAT_OFFSET, numPairs / 2);

+  g_STAT_OFFSET++;

+  {

+    unsigned i;

+    for (i = 0; i < numPairs; i += 2)

+      printf("%2u %6u   | ", p->matches[i], p->matches[i + 1]);

+  }

+  #endif

+  

+  if (numPairs == 0)

+    return 0;

+  {

+    unsigned len = p->matches[(size_t)numPairs - 2];

+    if (len != p->numFastBytes)

+      return len;

+    {

+      UInt32 numAvail = p->numAvail;

+      if (numAvail > LZMA_MATCH_LEN_MAX)

+        numAvail = LZMA_MATCH_LEN_MAX;

+      {

+        const Byte *p1 = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;

+        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++);

+        return (unsigned)(p2 - p1);

+      }

+    }

+  }

+}

+

+#define MARK_LIT ((UInt32)(Int32)-1)

+

+#define MakeAs_Lit(p)       { (p)->dist = MARK_LIT; (p)->extra = 0; }

+#define MakeAs_ShortRep(p)  { (p)->dist = 0; (p)->extra = 0; }

+#define IsShortRep(p)       ((p)->dist == 0)

+

+

+#define GetPrice_ShortRep(p, state, posState) \

+  ( GET_PRICE_0(p->isRepG0[state]) + GET_PRICE_0(p->isRep0Long[state][posState]))

+

+#define GetPrice_Rep_0(p, state, posState) ( \

+    GET_PRICE_1(p->isMatch[state][posState]) \

+  + GET_PRICE_1(p->isRep0Long[state][posState])) \

+  + GET_PRICE_1(p->isRep[state]) \

+  + GET_PRICE_0(p->isRepG0[state])

+  

+

+static UInt32 GetPrice_PureRep(const CLzmaEnc *p, unsigned repIndex, size_t state, size_t posState)

+{

+  UInt32 price;

+  UInt32 prob = p->isRepG0[state];

+  if (repIndex == 0)

+  {

+    price = GET_PRICE_0(prob);

+    price += GET_PRICE_1(p->isRep0Long[state][posState]);

+  }

+  else

+  {

+    price = GET_PRICE_1(prob);

+    prob = p->isRepG1[state];

+    if (repIndex == 1)

+      price += GET_PRICE_0(prob);

+    else

+    {

+      price += GET_PRICE_1(prob);

+      price += GET_PRICE(p->isRepG2[state], repIndex - 2);

+    }

+  }

+  return price;

+}

+

+

+static unsigned Backward(CLzmaEnc *p, unsigned cur)

+{

+  unsigned wr = cur + 1;

+  p->optEnd = wr;

+

+  for (;;)

+  {

+    UInt32 dist = p->opt[cur].dist;

+    UInt32 len = p->opt[cur].len;

+    UInt32 extra = p->opt[cur].extra;

+    cur -= len;

+

+    if (extra)

+    {

+      wr--;

+      p->opt[wr].len = len;

+      cur -= extra;

+      len = extra;

+      if (extra == 1)

+      {

+        p->opt[wr].dist = dist;

+        dist = MARK_LIT;

+      }

+      else

+      {

+        p->opt[wr].dist = 0;

+        len--;

+        wr--;

+        p->opt[wr].dist = MARK_LIT;

+        p->opt[wr].len = 1;

+      }

+    }

+

+    if (cur == 0)

+    {

+      p->backRes = dist;

+      p->optCur = wr;

+      return len;

+    }

+    

+    wr--;

+    p->opt[wr].dist = dist;

+    p->opt[wr].len = len;

+  }

+}

+

+

+

+#define LIT_PROBS(pos, prevByte) \

+  (p->litProbs + (UInt32)3 * (((((pos) << 8) + (prevByte)) & p->lpMask) << p->lc))

+

+

+static unsigned GetOptimum(CLzmaEnc *p, UInt32 position)

+{

+  unsigned last, cur;

+  UInt32 reps[LZMA_NUM_REPS];

+  unsigned repLens[LZMA_NUM_REPS];

+  UInt32 *matches;

+

+  {

+    UInt32 numAvail;

+    unsigned numPairs, mainLen, repMaxIndex, i, posState;

+    UInt32 matchPrice, repMatchPrice;

+    const Byte *data;

+    Byte curByte, matchByte;

+    

+    p->optCur = p->optEnd = 0;

+    

+    if (p->additionalOffset == 0)

+      mainLen = ReadMatchDistances(p, &numPairs);

+    else

+    {

+      mainLen = p->longestMatchLen;

+      numPairs = p->numPairs;

+    }

+    

+    numAvail = p->numAvail;

+    if (numAvail < 2)

+    {

+      p->backRes = MARK_LIT;

+      return 1;

+    }

+    if (numAvail > LZMA_MATCH_LEN_MAX)

+      numAvail = LZMA_MATCH_LEN_MAX;

+    

+    data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;

+    repMaxIndex = 0;

+    

+    for (i = 0; i < LZMA_NUM_REPS; i++)

+    {

+      unsigned len;

+      const Byte *data2;

+      reps[i] = p->reps[i];

+      data2 = data - reps[i];

+      if (data[0] != data2[0] || data[1] != data2[1])

+      {

+        repLens[i] = 0;

+        continue;

+      }

+      for (len = 2; len < numAvail && data[len] == data2[len]; len++);

+      repLens[i] = len;

+      if (len > repLens[repMaxIndex])

+        repMaxIndex = i;

+    }

+    

+    if (repLens[repMaxIndex] >= p->numFastBytes)

+    {

+      unsigned len;

+      p->backRes = repMaxIndex;

+      len = repLens[repMaxIndex];

+      MOVE_POS(p, len - 1)

+      return len;

+    }

+    

+    matches = p->matches;

+    

+    if (mainLen >= p->numFastBytes)

+    {

+      p->backRes = matches[(size_t)numPairs - 1] + LZMA_NUM_REPS;

+      MOVE_POS(p, mainLen - 1)

+      return mainLen;

+    }

+    

+    curByte = *data;

+    matchByte = *(data - reps[0]);

+    

+    if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2)

+    {

+      p->backRes = MARK_LIT;

+      return 1;

+    }

+    

+    p->opt[0].state = (CState)p->state;

+    

+    posState = (position & p->pbMask);

+    

+    {

+      const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));

+      p->opt[1].price = GET_PRICE_0(p->isMatch[p->state][posState]) +

+        (!IsLitState(p->state) ?

+          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)

+    {

+      UInt32 shortRepPrice = repMatchPrice + GetPrice_ShortRep(p, p->state, posState);

+      if (shortRepPrice < p->opt[1].price)

+      {

+        p->opt[1].price = shortRepPrice;

+        MakeAs_ShortRep(&p->opt[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];

+    p->opt[0].reps[1] = reps[1];

+    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++)

+    {

+      unsigned repLen = repLens[i];

+      UInt32 price;

+      if (repLen < 2)

+        continue;

+      price = repMatchPrice + GetPrice_PureRep(p, i, p->state, posState);

+      do

+      {

+        UInt32 price2 = price + p->repLenEnc.prices[posState][(size_t)repLen - 2];

+        COptimal *opt = &p->opt[repLen];

+        if (price2 < opt->price)

+        {

+          opt->price = price2;

+          opt->len = repLen;

+          opt->dist = i;

+          opt->extra = 0;

+        }

+      }

+      while (--repLen >= 2);

+    }

+    

+    

+    // ---------- MATCH ----------

+    {

+      unsigned len  = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);

+      if (len <= mainLen)

+      {

+        unsigned offs = 0;

+        UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);

+

+        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];

+          unsigned lenToPosState = GetLenToPosState(len);

+       

+          if (dist < kNumFullDistances)

+            price2 += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];

+          else

+          {

+            unsigned slot;

+            GetPosSlot2(dist, slot);

+            price2 += p->alignPrices[dist & kAlignMask];

+            price2 += p->posSlotPrices[lenToPosState][slot];

+          }

+          

+          opt = &p->opt[len];

+          

+          if (price2 < opt->price)

+          {

+            opt->price = price2;

+            opt->len = len;

+            opt->dist = dist + LZMA_NUM_REPS;

+            opt->extra = 0;

+          }

+          

+          if (len == matches[offs])

+          {

+            offs += 2;

+            if (offs == numPairs)

+              break;

+          }

+        }

+      }

+    }

+    

+

+    cur = 0;

+

+    #ifdef SHOW_STAT2

+    /* if (position >= 0) */

+    {

+      unsigned i;

+      printf("\n pos = %4X", position);

+      for (i = cur; i <= last; i++)

+      printf("\nprice[%4X] = %u", position - cur + i, p->opt[i].price);

+    }

+    #endif

+  }

+

+

+  

+  // ---------- Optimal Parsing ----------

+

+  for (;;)

+  {

+    UInt32 numAvail, numAvailFull;

+    unsigned newLen, numPairs, prev, state, posState, startLen;

+    UInt32 curPrice, litPrice, matchPrice, repMatchPrice;

+    Bool nextIsLit;

+    Byte curByte, matchByte;

+    const Byte *data;

+    COptimal *curOpt, *nextOpt;

+

+    if (++cur == last)

+      return Backward(p, cur);

+

+    newLen = ReadMatchDistances(p, &numPairs);

+    

+    if (newLen >= p->numFastBytes)

+    {

+      p->numPairs = numPairs;

+      p->longestMatchLen = newLen;

+      return Backward(p, cur);

+    }

+    

+    curOpt = &p->opt[cur];

+    prev = cur - curOpt->len;

+    

+    if (curOpt->len == 1)

+    {

+      state = p->opt[prev].state;

+      if (IsShortRep(curOpt))

+        state = kShortRepNextStates[state];

+      else

+        state = kLiteralNextStates[state];

+    }

+    else

+    {

+      const COptimal *prevOpt;

+      UInt32 b0;

+      UInt32 dist = curOpt->dist;

+

+      if (curOpt->extra)

+      {

+        prev -= curOpt->extra;

+        state = kState_RepAfterLit;

+        if (curOpt->extra == 1)

+          state = (dist < LZMA_NUM_REPS) ? kState_RepAfterLit : kState_MatchAfterLit;

+      }

+      else

+      {

+        state = p->opt[prev].state;

+        if (dist < LZMA_NUM_REPS)

+          state = kRepNextStates[state];

+        else

+          state = kMatchNextStates[state];

+      }

+

+      prevOpt = &p->opt[prev];

+      b0 = prevOpt->reps[0];

+

+      if (dist < LZMA_NUM_REPS)

+      {

+        if (dist == 0)

+        {

+          reps[0] = b0;

+          reps[1] = prevOpt->reps[1];

+          reps[2] = prevOpt->reps[2];

+          reps[3] = prevOpt->reps[3];

+        }

+        else

+        {

+          reps[1] = b0;

+          b0 = prevOpt->reps[1];

+          if (dist == 1)

+          {

+            reps[0] = b0;

+            reps[2] = prevOpt->reps[2];

+            reps[3] = prevOpt->reps[3];

+          }

+          else

+          {

+            reps[2] = b0;

+            reps[0] = prevOpt->reps[dist];

+            reps[3] = prevOpt->reps[dist ^ 1];

+          }

+        }

+      }

+      else

+      {

+        reps[0] = (dist - LZMA_NUM_REPS + 1);

+        reps[1] = b0;

+        reps[2] = prevOpt->reps[1];

+        reps[3] = prevOpt->reps[2];

+      }

+    }

+    

+    curOpt->state = (CState)state;

+    curOpt->reps[0] = reps[0];

+    curOpt->reps[1] = reps[1];

+    curOpt->reps[2] = reps[2];

+    curOpt->reps[3] = reps[3];

+

+    data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;

+    curByte = *data;

+    matchByte = *(data - reps[0]);

+

+    position++;

+    posState = (position & p->pbMask);

+

+    /*

+    The order of Price checks:

+       <  LIT

+       <= SHORT_REP

+       <  LIT : REP_0

+       <  REP    [ : LIT : REP_0 ]

+       <  MATCH  [ : LIT : REP_0 ]

+    */

+

+    curPrice = curOpt->price;

+    litPrice = curPrice + GET_PRICE_0(p->isMatch[state][posState]);

+

+    nextOpt = &p->opt[(size_t)cur + 1];

+    nextIsLit = False;

+

+    // if (litPrice >= nextOpt->price) litPrice = 0; else // 18.new

+    {

+      const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));

+      litPrice += (!IsLitState(state) ?

+          LitEnc_Matched_GetPrice(probs, curByte, matchByte, p->ProbPrices) :

+          LitEnc_GetPrice(probs, curByte, p->ProbPrices));

+      

+      if (litPrice < nextOpt->price)

+      {

+        nextOpt->price = litPrice;

+        nextOpt->len = 1;

+        MakeAs_Lit(nextOpt);

+        nextIsLit = True;

+      }

+    }

+

+    matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);

+    repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);

+    

+    // ---------- SHORT_REP ----------

+    // if (IsLitState(state)) // 18.new

+    if (matchByte == curByte)

+    // if (repMatchPrice < nextOpt->price) // 18.new

+    if (nextOpt->len < 2

+        || (nextOpt->dist != 0

+            && 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

+      {

+        nextOpt->price = shortRepPrice;

+        nextOpt->len = 1;

+        MakeAs_ShortRep(nextOpt);

+        nextIsLit = False;

+      }

+    }

+    

+    numAvailFull = p->numAvail;

+    {

+      UInt32 temp = kNumOpts - 1 - cur;

+      if (numAvailFull > temp)

+        numAvailFull = temp;

+    }

+

+    if (numAvailFull < 2)

+      continue;

+    numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes);

+

+    // numAvail <= p->numFastBytes

+

+    // ---------- LIT : REP_0 ----------

+

+    if (

+        // litPrice != 0 && // 18.new

+        !nextIsLit

+        && matchByte != curByte

+        && numAvailFull > 2)

+    {

+      const Byte *data2 = data - reps[0];

+      if (data[1] == data2[1] && data[2] == data2[2])

+      {

+        unsigned len;

+        unsigned limit = p->numFastBytes + 1;

+        if (limit > numAvailFull)

+          limit = numAvailFull;

+        for (len = 3; len < limit && data[len] == data2[len]; len++);

+        

+        {

+          unsigned state2 = kLiteralNextStates[state];

+          unsigned posState2 = (position + 1) & p->pbMask;

+          UInt32 price = litPrice + GetPrice_Rep_0(p, state2, posState2);

+          {

+            unsigned offset = cur + len;

+            while (last < offset)

+              p->opt[++last].price = kInfinityPrice;

+          

+            // do

+            {

+              UInt32 price2;

+              COptimal *opt;

+              len--;

+              // price2 = price + GetPrice_Len_Rep_0(p, len, state2, posState2);

+              price2 = price + p->repLenEnc.prices[posState2][len - LZMA_MATCH_LEN_MIN];

+

+              opt = &p->opt[offset];

+              // offset--;

+              if (price2 < opt->price)

+              {

+                opt->price = price2;

+                opt->len = len;

+                opt->dist = 0;

+                opt->extra = 1;

+              }

+            }

+            // while (len >= 3);

+          }

+        }

+      }

+    }

+    

+    startLen = 2; /* speed optimization */

+    {

+      // ---------- REP ----------

+      unsigned repIndex = 0; // 17.old

+      // unsigned repIndex = IsLitState(state) ? 0 : 1; // 18.notused

+      for (; repIndex < LZMA_NUM_REPS; repIndex++)

+      {

+        unsigned len;

+        UInt32 price;

+        const Byte *data2 = data - reps[repIndex];

+        if (data[0] != data2[0] || data[1] != data2[1])

+          continue;

+        

+        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 len2 = len;

+          price = repMatchPrice + GetPrice_PureRep(p, repIndex, state, posState);

+          do

+          {

+            UInt32 price2 = price + p->repLenEnc.prices[posState][(size_t)len2 - 2];

+            COptimal *opt = &p->opt[cur + len2];

+            if (price2 < opt->price)

+            {

+              opt->price = price2;

+              opt->len = len2;

+              opt->dist = repIndex;

+              opt->extra = 0;

+            }

+          }

+          while (--len2 >= 2);

+        }

+        

+        if (repIndex == 0) startLen = len + 1;  // 17.old

+        // startLen = len + 1; // 18.new

+

+        /* if (_maxMode) */

+        {

+          // ---------- REP : LIT : REP_0 ----------

+          // numFastBytes + 1 + numFastBytes

+

+          unsigned len2 = len + 1;

+          unsigned limit = len2 + p->numFastBytes;

+          if (limit > numAvailFull)

+            limit = numAvailFull;

+          

+          for (; len2 < limit && data[len2] == data2[len2]; len2++);

+          

+          len2 -= len;

+          if (len2 >= 3)

+          {

+            unsigned state2 = kRepNextStates[state];

+            unsigned posState2 = (position + len) & p->pbMask;

+            price +=

+                  p->repLenEnc.prices[posState][(size_t)len - 2]

+                + 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);

+            

+            // state2 = kLiteralNextStates[state2];

+            state2 = kState_LitAfterRep;

+            posState2 = (posState2 + 1) & p->pbMask;

+

+

+            price += GetPrice_Rep_0(p, state2, posState2);

+            {

+              unsigned offset = cur + len + len2;

+              while (last < offset)

+                p->opt[++last].price = kInfinityPrice;

+              // do

+              {

+                unsigned 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];

+

+                opt = &p->opt[offset];

+                // offset--;

+                if (price2 < opt->price)

+                {

+                  opt->price = price2;

+                  opt->len = len2;

+                  opt->extra = (CExtra)(len + 1);

+                  opt->dist = repIndex;

+                }

+              }

+              // while (len2 >= 3);

+            }

+          }

+        }

+      }

+    }

+

+

+    // ---------- MATCH ----------

+    /* for (unsigned len = 2; len <= newLen; len++) */

+    if (newLen > numAvail)

+    {

+      newLen = numAvail;

+      for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2);

+      matches[numPairs] = newLen;

+      numPairs += 2;

+    }

+    

+    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;

+

+      offs = 0;

+      while (startLen > matches[offs])

+        offs += 2;

+      dist = matches[(size_t)offs + 1];

+      

+      // if (dist >= kNumFullDistances)

+      GetPosSlot2(dist, posSlot);

+      

+      for (len = /*2*/ startLen; ; len++)

+      {

+        UInt32 price = normalMatchPrice + p->lenEnc.prices[posState][(size_t)len - LZMA_MATCH_LEN_MIN];

+        {

+          COptimal *opt;

+          unsigned lenToPosState = len - 2; lenToPosState = GetLenToPosState2(lenToPosState);

+          if (dist < kNumFullDistances)

+            price += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];

+          else

+            price += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[dist & kAlignMask];

+          

+          opt = &p->opt[cur + len];

+          if (price < opt->price)

+          {

+            opt->price = price;

+            opt->len = len;

+            opt->dist = dist + LZMA_NUM_REPS;

+            opt->extra = 0;

+          }

+        }

+

+        if (/*_maxMode && */ len == matches[offs])

+        {

+          // MATCH : LIT : REP_0

+

+          const Byte *data2 = data - dist - 1;

+          unsigned len2 = len + 1;

+          unsigned limit = len2 + p->numFastBytes;

+          if (limit > numAvailFull)

+            limit = numAvailFull;

+          

+          for (; len2 < limit && data[len2] == data2[len2]; len2++);

+          

+          len2 -= len;

+          

+          if (len2 >= 3)

+          {

+            unsigned state2 = kMatchNextStates[state];

+            unsigned posState2 = (position + len) & p->pbMask;

+            unsigned offset;

+            price += GET_PRICE_0(p->isMatch[state2][posState2]);

+            price += LitEnc_Matched_GetPrice(LIT_PROBS(position + len, data[(size_t)len - 1]),

+                    data[len], data2[len], p->ProbPrices);

+

+            // state2 = kLiteralNextStates[state2];

+            state2 = kState_LitAfterMatch;

+

+            posState2 = (posState2 + 1) & p->pbMask;

+            price += GetPrice_Rep_0(p, state2, posState2);

+

+            offset = cur + len + len2;

+            while (last < offset)

+              p->opt[++last].price = kInfinityPrice;

+            // 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];

+              opt = &p->opt[offset];

+              // offset--;

+              if (price2 < opt->price)

+              {

+                opt->price = price2;

+                opt->len = len2;

+                opt->extra = (CExtra)(len + 1);

+                opt->dist = dist + LZMA_NUM_REPS;

+              }

+            }

+            // while (len2 >= 3);

+          }

+        

+          offs += 2;

+          if (offs == numPairs)

+            break;

+          dist = matches[(size_t)offs + 1];

+          // if (dist >= kNumFullDistances)

+            GetPosSlot2(dist, posSlot);

+        }

+      }

+    }

+  }

+}

+

+

+

+#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist))

+

+

+

+static unsigned GetOptimumFast(CLzmaEnc *p)

+{

+  UInt32 numAvail, mainDist;

+  unsigned mainLen, numPairs, repIndex, repLen, i;

+  const Byte *data;

+

+  if (p->additionalOffset == 0)

+    mainLen = ReadMatchDistances(p, &numPairs);

+  else

+  {

+    mainLen = p->longestMatchLen;

+    numPairs = p->numPairs;

+  }

+

+  numAvail = p->numAvail;

+  p->backRes = MARK_LIT;

+  if (numAvail < 2)

+    return 1;

+  if (numAvail > LZMA_MATCH_LEN_MAX)

+    numAvail = LZMA_MATCH_LEN_MAX;

+  data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;

+  repLen = repIndex = 0;

+  

+  for (i = 0; i < LZMA_NUM_REPS; i++)

+  {

+    unsigned len;

+    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++);

+    if (len >= p->numFastBytes)

+    {

+      p->backRes = i;

+      MOVE_POS(p, len - 1)

+      return len;

+    }

+    if (len > repLen)

+    {

+      repIndex = i;

+      repLen = len;

+    }

+  }

+

+  if (mainLen >= p->numFastBytes)

+  {

+    p->backRes = p->matches[(size_t)numPairs - 1] + LZMA_NUM_REPS;

+    MOVE_POS(p, mainLen - 1)

+    return mainLen;

+  }

+

+  mainDist = 0; /* for GCC */

+  

+  if (mainLen >= 2)

+  {

+    mainDist = p->matches[(size_t)numPairs - 1];

+    while (numPairs > 2)

+    {

+      UInt32 dist2;

+      if (mainLen != p->matches[(size_t)numPairs - 4] + 1)

+        break;

+      dist2 = p->matches[(size_t)numPairs - 3];

+      if (!ChangePair(dist2, mainDist))

+        break;

+      numPairs -= 2;

+      mainLen--;

+      mainDist = dist2;

+    }

+    if (mainLen == 2 && mainDist >= 0x80)

+      mainLen = 1;

+  }

+

+  if (repLen >= 2)

+    if (    repLen + 1 >= mainLen

+        || (repLen + 2 >= mainLen && mainDist >= (1 << 9))

+        || (repLen + 3 >= mainLen && mainDist >= (1 << 15)))

+  {

+    p->backRes = repIndex;

+    MOVE_POS(p, repLen - 1)

+    return repLen;

+  }

+  

+  if (mainLen < 2 || numAvail <= 2)

+    return 1;

+

+  {

+    unsigned len1 = ReadMatchDistances(p, &p->numPairs);

+    p->longestMatchLen = len1;

+  

+    if (len1 >= 2)

+    {

+      UInt32 newDist = p->matches[(size_t)p->numPairs - 1];

+      if (   (len1 >= mainLen && newDist < mainDist)

+          || (len1 == mainLen + 1 && !ChangePair(mainDist, newDist))

+          || (len1 >  mainLen + 1)

+          || (len1 + 1 >= mainLen && mainLen >= 3 && ChangePair(newDist, mainDist)))

+        return 1;

+    }

+  }

+  

+  data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;

+  

+  for (i = 0; i < LZMA_NUM_REPS; i++)

+  {

+    unsigned len, limit;

+    const Byte *data2 = data - p->reps[i];

+    if (data[0] != data2[0] || data[1] != data2[1])

+      continue;

+    limit = mainLen - 1;

+    for (len = 2;; len++)

+    {

+      if (len >= limit)

+        return 1;

+      if (data[len] != data2[len])

+        break;

+    }

+  }

+  

+  p->backRes = mainDist + LZMA_NUM_REPS;

+  if (mainLen != 2)

+  {

+    MOVE_POS(p, mainLen - 2)

+  }

+  return mainLen;

+}

+

+

+

+

+static void WriteEndMarker(CLzmaEnc *p, unsigned posState)

+{

+  UInt32 range;

+  range = p->rc.range;

+  {

+    UInt32 ttt, newBound;

+    CLzmaProb *prob = &p->isMatch[p->state][posState];

+    RC_BIT_PRE(&p->rc, prob)

+    RC_BIT_1(&p->rc, prob)

+    prob = &p->isRep[p->state];

+    RC_BIT_PRE(&p->rc, prob)

+    RC_BIT_0(&p->rc, prob)

+  }

+  p->state = kMatchNextStates[p->state];

+  

+  p->rc.range = range;

+  LenEnc_Encode(&p->lenProbs, &p->rc, 0, posState);

+  range = p->rc.range;

+

+  {

+    // RcTree_Encode_PosSlot(&p->rc, p->posSlotEncoder[0], (1 << kNumPosSlotBits) - 1);

+    CLzmaProb *probs = p->posSlotEncoder[0];

+    unsigned m = 1;

+    do

+    {

+      UInt32 ttt, newBound;

+      RC_BIT_PRE(p, probs + m)

+      RC_BIT_1(&p->rc, probs + m);

+      m = (m << 1) + 1;

+    }

+    while (m < (1 << kNumPosSlotBits));

+  }

+  {

+    // RangeEnc_EncodeDirectBits(&p->rc, ((UInt32)1 << (30 - kNumAlignBits)) - 1, 30 - kNumAlignBits);    UInt32 range = p->range;

+    unsigned numBits = 30 - kNumAlignBits;

+    do

+    {

+      range >>= 1;

+      p->rc.low += range;

+      RC_NORM(&p->rc)

+    }

+    while (--numBits);

+  }

+   

+  {

+    // RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);

+    CLzmaProb *probs = p->posAlignEncoder;

+    unsigned m = 1;

+    do

+    {

+      UInt32 ttt, newBound;

+      RC_BIT_PRE(p, probs + m)

+      RC_BIT_1(&p->rc, probs + m);

+      m = (m << 1) + 1;

+    }

+    while (m < kAlignTableSize);

+  }

+  p->rc.range = range;

+}

+

+

+static SRes CheckErrors(CLzmaEnc *p)

+{

+  if (p->result != SZ_OK)

+    return p->result;

+  if (p->rc.res != SZ_OK)

+    p->result = SZ_ERROR_WRITE;

+  if (p->matchFinderBase.result != SZ_OK)

+    p->result = SZ_ERROR_READ;

+  if (p->result != SZ_OK)

+    p->finished = True;

+  return p->result;

+}

+

+

+MY_NO_INLINE static SRes Flush(CLzmaEnc *p, UInt32 nowPos)

+{

+  /* ReleaseMFStream(); */

+  p->finished = True;

+  if (p->writeEndMark)

+    WriteEndMarker(p, nowPos & p->pbMask);

+  RangeEnc_FlushData(&p->rc);

+  RangeEnc_FlushStream(&p->rc);

+  return CheckErrors(p);

+}

+

+

+

+static void FillAlignPrices(CLzmaEnc *p)

+{

+  unsigned i;

+  const CProbPrice *ProbPrices = p->ProbPrices;

+  const CLzmaProb *probs = p->posAlignEncoder;

+  p->alignPriceCount = 0;

+  for (i = 0; i < kAlignTableSize / 2; i++)

+  {

+    UInt32 price = 0;

+    unsigned symbol = 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;

+    prob = probs[m];

+    p->alignPrices[i    ] = price + GET_PRICEa_0(prob);

+    p->alignPrices[i + 8] = price + GET_PRICEa_1(prob);

+    // p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices);

+  }

+}

+

+

+static void FillDistancesPrices(CLzmaEnc *p)

+{

+  UInt32 tempPrices[kNumFullDistances];

+  unsigned i, lenToPosState;

+

+  const CProbPrice *ProbPrices = p->ProbPrices;

+  p->matchPriceCount = 0;

+

+  for (i = kStartPosModelIndex; i < kNumFullDistances; i++)

+  {

+    unsigned posSlot = GetPosSlot1(i);

+    unsigned footerBits = ((posSlot >> 1) - 1);

+    unsigned base = ((2 | (posSlot & 1)) << footerBits);

+    // 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;

+    do

+    {

+      unsigned bit = symbol & 1;

+      symbol >>= 1;

+      price += GET_PRICEa(probs[m], bit);

+      m = (m << 1) + bit;

+    }

+    while (--footerBits);

+    tempPrices[i] = price;

+  }

+

+  for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)

+  {

+    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)

+    {

+      // posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);

+      UInt32 price = 0;

+      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);

+    }

+    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];

+      }

+      for (i = 4; i < kNumFullDistances; i += 2)

+      {

+        UInt32 slotPrice = posSlotPrices[GetPosSlot1(i)];

+        distancesPrices[i    ] = slotPrice + tempPrices[i];

+        distancesPrices[i + 1] = slotPrice + tempPrices[i + 1];

+      }

+    }

+  }

+}

+

+

+

+void LzmaEnc_Construct(CLzmaEnc *p)

+{

+  RangeEnc_Construct(&p->rc);

+  MatchFinder_Construct(&p->matchFinderBase);

+  

+  #ifndef _7ZIP_ST

+  MatchFinderMt_Construct(&p->matchFinderMt);

+  p->matchFinderMt.MatchFinder = &p->matchFinderBase;

+  #endif

+

+  {

+    CLzmaEncProps props;

+    LzmaEncProps_Init(&props);

+    LzmaEnc_SetProps(p, &props);

+  }

+

+  #ifndef LZMA_LOG_BSR

+  LzmaEnc_FastPosInit(p->g_FastPos);

+  #endif

+

+  LzmaEnc_InitPriceTables(p->ProbPrices);

+  p->litProbs = NULL;

+  p->saveState.litProbs = NULL;

+

+}

+

+CLzmaEncHandle LzmaEnc_Create(ISzAllocPtr alloc)

+{

+  void *p;

+  p = ISzAlloc_Alloc(alloc, sizeof(CLzmaEnc));

+  if (p)

+    LzmaEnc_Construct((CLzmaEnc *)p);

+  return p;

+}

+

+void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAllocPtr alloc)

+{

+  ISzAlloc_Free(alloc, p->litProbs);

+  ISzAlloc_Free(alloc, p->saveState.litProbs);

+  p->litProbs = NULL;

+  p->saveState.litProbs = NULL;

+}

+

+void LzmaEnc_Destruct(CLzmaEnc *p, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  #ifndef _7ZIP_ST

+  MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);

+  #endif

+  

+  MatchFinder_Free(&p->matchFinderBase, allocBig);

+  LzmaEnc_FreeLits(p, alloc);

+  RangeEnc_Free(&p->rc, alloc);

+}

+

+void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig);

+  ISzAlloc_Free(alloc, p);

+}

+

+

+static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpackSize)

+{

+  UInt32 nowPos32, startPos32;

+  if (p->needInit)

+  {

+    p->matchFinder.Init(p->matchFinderObj);

+    p->needInit = 0;

+  }

+

+  if (p->finished)

+    return p->result;

+  RINOK(CheckErrors(p));

+

+  nowPos32 = (UInt32)p->nowPos64;

+  startPos32 = nowPos32;

+

+  if (p->nowPos64 == 0)

+  {

+    unsigned numPairs;

+    Byte curByte;

+    if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)

+      return Flush(p, nowPos32);

+    ReadMatchDistances(p, &numPairs);

+    RangeEnc_EncodeBit_0(&p->rc, &p->isMatch[kState_Start][0]);

+    // p->state = kLiteralNextStates[p->state];

+    curByte = *(p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset);

+    LitEnc_Encode(&p->rc, p->litProbs, curByte);

+    p->additionalOffset--;

+    nowPos32++;

+  }

+

+  if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)

+  

+  for (;;)

+  {

+    UInt32 dist;

+    unsigned len, posState;

+    UInt32 range, ttt, newBound;

+    CLzmaProb *probs;

+  

+    if (p->fastMode)

+      len = GetOptimumFast(p);

+    else

+    {

+      unsigned oci = p->optCur;

+      if (p->optEnd == oci)

+        len = GetOptimum(p, nowPos32);

+      else

+      {

+        const COptimal *opt = &p->opt[oci];

+        len = opt->len;

+        p->backRes = opt->dist;

+        p->optCur = oci + 1;

+      }

+    }

+

+    posState = (unsigned)nowPos32 & p->pbMask;

+    range = p->rc.range;

+    probs = &p->isMatch[p->state][posState];

+    

+    RC_BIT_PRE(&p->rc, probs)

+    

+    dist = p->backRes;

+

+    #ifdef SHOW_STAT2

+    printf("\n pos = %6X, len = %3u  pos = %6u", nowPos32, len, dist);

+    #endif

+

+    if (dist == MARK_LIT)

+    {

+      Byte curByte;

+      const Byte *data;

+      unsigned state;

+

+      RC_BIT_0(&p->rc, probs);

+      p->rc.range = range;

+      data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;

+      probs = LIT_PROBS(nowPos32, *(data - 1));

+      curByte = *data;

+      state = p->state;

+      p->state = kLiteralNextStates[state];

+      if (IsLitState(state))

+        LitEnc_Encode(&p->rc, probs, curByte);

+      else

+        LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0]));

+    }

+    else

+    {

+      RC_BIT_1(&p->rc, probs);

+      probs = &p->isRep[p->state];

+      RC_BIT_PRE(&p->rc, probs)

+      

+      if (dist < LZMA_NUM_REPS)

+      {

+        RC_BIT_1(&p->rc, probs);

+        probs = &p->isRepG0[p->state];

+        RC_BIT_PRE(&p->rc, probs)

+        if (dist == 0)

+        {

+          RC_BIT_0(&p->rc, probs);

+          probs = &p->isRep0Long[p->state][posState];

+          RC_BIT_PRE(&p->rc, probs)

+          if (len != 1)

+          {

+            RC_BIT_1_BASE(&p->rc, probs);

+          }

+          else

+          {

+            RC_BIT_0_BASE(&p->rc, probs);

+            p->state = kShortRepNextStates[p->state];

+          }

+        }

+        else

+        {

+          RC_BIT_1(&p->rc, probs);

+          probs = &p->isRepG1[p->state];

+          RC_BIT_PRE(&p->rc, probs)

+          if (dist == 1)

+          {

+            RC_BIT_0_BASE(&p->rc, probs);

+            dist = p->reps[1];

+          }

+          else

+          {

+            RC_BIT_1(&p->rc, probs);

+            probs = &p->isRepG2[p->state];

+            RC_BIT_PRE(&p->rc, probs)

+            if (dist == 2)

+            {

+              RC_BIT_0_BASE(&p->rc, probs);

+              dist = p->reps[2];

+            }

+            else

+            {

+              RC_BIT_1_BASE(&p->rc, probs);

+              dist = p->reps[3];

+              p->reps[3] = p->reps[2];

+            }

+            p->reps[2] = p->reps[1];

+          }

+          p->reps[1] = p->reps[0];

+          p->reps[0] = dist;

+        }

+

+        RC_NORM(&p->rc)

+

+        p->rc.range = range;

+

+        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->state = kRepNextStates[p->state];

+        }

+      }

+      else

+      {

+        unsigned posSlot;

+        RC_BIT_0(&p->rc, probs);

+        p->rc.range = range;

+        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);

+

+        dist -= LZMA_NUM_REPS;

+        p->reps[3] = p->reps[2];

+        p->reps[2] = p->reps[1];

+        p->reps[1] = p->reps[0];

+        p->reps[0] = dist + 1;

+        

+        p->matchPriceCount++;

+        GetPosSlot(dist, posSlot);

+        // RcTree_Encode_PosSlot(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], posSlot);

+        {

+          UInt32 symbol = 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;

+            RC_BIT(&p->rc, prob, bit);

+          }

+          while (symbol < (1 << kNumPosSlotBits * 2));

+          p->rc.range = range;

+        }

+        

+        if (dist >= kStartPosModelIndex)

+        {

+          unsigned footerBits = ((posSlot >> 1) - 1);

+

+          if (dist < kNumFullDistances)

+          {

+            unsigned base = ((2 | (posSlot & 1)) << footerBits);

+            RcTree_ReverseEncode(&p->rc, p->posEncoders + base, footerBits, dist - base);

+          }

+          else

+          {

+            UInt32 pos2 = (dist | 0xF) << (32 - footerBits);

+            range = p->rc.range;

+            // RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits, footerBits - kNumAlignBits);

+            /*

+            do

+            {

+              range >>= 1;

+              p->rc.low += range & (0 - ((dist >> --footerBits) & 1));

+              RC_NORM(&p->rc)

+            }

+            while (footerBits > kNumAlignBits);

+            */

+            do

+            {

+              range >>= 1;

+              p->rc.low += range & (0 - (pos2 >> 31));

+              pos2 += pos2;

+              RC_NORM(&p->rc)

+            }

+            while (pos2 != 0xF0000000);

+

+

+            // RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, posReduced & kAlignMask);

+

+            {

+              unsigned m = 1;

+              unsigned bit;

+              bit = dist & 1; dist >>= 1; RC_BIT(&p->rc, p->posAlignEncoder + m, bit); m = (m << 1) + bit;

+              bit = dist & 1; dist >>= 1; RC_BIT(&p->rc, p->posAlignEncoder + m, bit); m = (m << 1) + bit;

+              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++;

+            }

+          }

+        }

+      }

+    }

+

+    nowPos32 += len;

+    p->additionalOffset -= len;

+    

+    if (p->additionalOffset == 0)

+    {

+      UInt32 processed;

+

+      if (!p->fastMode)

+      {

+        if (p->matchPriceCount >= (1 << 7))

+          FillDistancesPrices(p);

+        if (p->alignPriceCount >= kAlignTableSize)

+          FillAlignPrices(p);

+      }

+    

+      if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)

+        break;

+      processed = nowPos32 - startPos32;

+      

+      if (maxPackSize)

+      {

+        if (processed + kNumOpts + 300 >= maxUnpackSize

+            || RangeEnc_GetProcessed_sizet(&p->rc) + kPackReserve >= maxPackSize)

+          break;

+      }

+      else if (processed >= (1 << 17))

+      {

+        p->nowPos64 += nowPos32 - startPos32;

+        return CheckErrors(p);

+      }

+    }

+  }

+

+  p->nowPos64 += nowPos32 - startPos32;

+  return Flush(p, nowPos32);

+}

+

+

+

+#define kBigHashDicLimit ((UInt32)1 << 24)

+

+static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  UInt32 beforeSize = kNumOpts;

+  if (!RangeEnc_Alloc(&p->rc, alloc))

+    return SZ_ERROR_MEM;

+

+  #ifndef _7ZIP_ST

+  p->mtMode = (p->multiThread && !p->fastMode && (p->matchFinderBase.btMode != 0));

+  #endif

+

+  {

+    unsigned lclp = p->lc + p->lp;

+    if (!p->litProbs || !p->saveState.litProbs || p->lclp != lclp)

+    {

+      LzmaEnc_FreeLits(p, alloc);

+      p->litProbs = (CLzmaProb *)ISzAlloc_Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));

+      p->saveState.litProbs = (CLzmaProb *)ISzAlloc_Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));

+      if (!p->litProbs || !p->saveState.litProbs)

+      {

+        LzmaEnc_FreeLits(p, alloc);

+        return SZ_ERROR_MEM;

+      }

+      p->lclp = lclp;

+    }

+  }

+

+  p->matchFinderBase.bigHash = (Byte)(p->dictSize > kBigHashDicLimit ? 1 : 0);

+

+  if (beforeSize + p->dictSize < keepWindowSize)

+    beforeSize = keepWindowSize - p->dictSize;

+

+  #ifndef _7ZIP_ST

+  if (p->mtMode)

+  {

+    RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes,

+        LZMA_MATCH_LEN_MAX

+        + 1  /* 18.04 */

+        , allocBig));

+    p->matchFinderObj = &p->matchFinderMt;

+    p->matchFinderBase.bigHash = (Byte)(

+        (p->dictSize > kBigHashDicLimit && p->matchFinderBase.hashMask >= 0xFFFFFF) ? 1 : 0);

+    MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);

+  }

+  else

+  #endif

+  {

+    if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig))

+      return SZ_ERROR_MEM;

+    p->matchFinderObj = &p->matchFinderBase;

+    MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);

+  }

+  

+  return SZ_OK;

+}

+

+void LzmaEnc_Init(CLzmaEnc *p)

+{

+  unsigned i;

+  p->state = 0;

+  p->reps[0] =

+  p->reps[1] =

+  p->reps[2] =

+  p->reps[3] = 1;

+

+  RangeEnc_Init(&p->rc);

+

+  for (i = 0; i < (1 << kNumAlignBits); i++)

+    p->posAlignEncoder[i] = kProbInitValue;

+

+  for (i = 0; i < kNumStates; i++)

+  {

+    unsigned j;

+    for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++)

+    {

+      p->isMatch[i][j] = kProbInitValue;

+      p->isRep0Long[i][j] = kProbInitValue;

+    }

+    p->isRep[i] = kProbInitValue;

+    p->isRepG0[i] = kProbInitValue;

+    p->isRepG1[i] = kProbInitValue;

+    p->isRepG2[i] = kProbInitValue;

+  }

+

+  {

+    for (i = 0; i < kNumLenToPosStates; i++)

+    {

+      CLzmaProb *probs = p->posSlotEncoder[i];

+      unsigned j;

+      for (j = 0; j < (1 << kNumPosSlotBits); j++)

+        probs[j] = kProbInitValue;

+    }

+  }

+  {

+    for (i = 0; i < kNumFullDistances; i++)

+      p->posEncoders[i] = kProbInitValue;

+  }

+

+  {

+    UInt32 num = (UInt32)0x300 << (p->lp + p->lc);

+    UInt32 k;

+    CLzmaProb *probs = p->litProbs;

+    for (k = 0; k < num; k++)

+      probs[k] = kProbInitValue;

+  }

+

+

+  LenEnc_Init(&p->lenProbs);

+  LenEnc_Init(&p->repLenProbs);

+

+  p->optEnd = 0;

+  p->optCur = 0;

+  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)

+  {

+    FillDistancesPrices(p);

+    FillAlignPrices(p);

+  }

+

+  p->lenEnc.tableSize =

+  p->repLenEnc.tableSize =

+      p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;

+  LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices);

+  LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, &p->repLenProbs, p->ProbPrices);

+}

+

+static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  unsigned i;

+  for (i = kEndPosModelIndex / 2; i < kDicLogSizeMax; i++)

+    if (p->dictSize <= ((UInt32)1 << i))

+      break;

+  p->distTableSize = i * 2;

+

+  p->finished = False;

+  p->result = SZ_OK;

+  RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig));

+  LzmaEnc_Init(p);

+  LzmaEnc_InitPrices(p);

+  p->nowPos64 = 0;

+  return SZ_OK;

+}

+

+static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,

+    ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  p->matchFinderBase.stream = inStream;

+  p->needInit = 1;

+  p->rc.outStream = outStream;

+  return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig);

+}

+

+SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp,

+    ISeqInStream *inStream, UInt32 keepWindowSize,

+    ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  p->matchFinderBase.stream = inStream;

+  p->needInit = 1;

+  return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);

+}

+

+static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen)

+{

+  p->matchFinderBase.directInput = 1;

+  p->matchFinderBase.bufferBase = (Byte *)src;

+  p->matchFinderBase.directInputRem = srcLen;

+}

+

+SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,

+    UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  LzmaEnc_SetInputBuf(p, src, srcLen);

+  p->needInit = 1;

+

+  LzmaEnc_SetDataSize(pp, srcLen);

+  return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);

+}

+

+void LzmaEnc_Finish(CLzmaEncHandle pp)

+{

+  #ifndef _7ZIP_ST

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  if (p->mtMode)

+    MatchFinderMt_ReleaseStream(&p->matchFinderMt);

+  #else

+  UNUSED_VAR(pp);

+  #endif

+}

+

+

+typedef struct

+{

+  ISeqOutStream vt;

+  Byte *data;

+  SizeT rem;

+  Bool overflow;

+} CLzmaEnc_SeqOutStreamBuf;

+

+static size_t SeqOutStreamBuf_Write(const ISeqOutStream *pp, const void *data, size_t size)

+{

+  CLzmaEnc_SeqOutStreamBuf *p = CONTAINER_FROM_VTBL(pp, CLzmaEnc_SeqOutStreamBuf, vt);

+  if (p->rem < size)

+  {

+    size = p->rem;

+    p->overflow = True;

+  }

+  memcpy(p->data, data, size);

+  p->rem -= size;

+  p->data += size;

+  return size;

+}

+

+

+UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)

+{

+  const CLzmaEnc *p = (CLzmaEnc *)pp;

+  return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);

+}

+

+

+const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)

+{

+  const CLzmaEnc *p = (CLzmaEnc *)pp;

+  return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;

+}

+

+

+SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,

+    Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  UInt64 nowPos64;

+  SRes res;

+  CLzmaEnc_SeqOutStreamBuf outStream;

+

+  outStream.vt.Write = SeqOutStreamBuf_Write;

+  outStream.data = dest;

+  outStream.rem = *destLen;

+  outStream.overflow = False;

+

+  p->writeEndMark = False;

+  p->finished = False;

+  p->result = SZ_OK;

+

+  if (reInit)

+    LzmaEnc_Init(p);

+  LzmaEnc_InitPrices(p);

+

+  nowPos64 = p->nowPos64;

+  RangeEnc_Init(&p->rc);

+  p->rc.outStream = &outStream.vt;

+

+  if (desiredPackSize == 0)

+    return SZ_ERROR_OUTPUT_EOF;

+

+  res = LzmaEnc_CodeOneBlock(p, desiredPackSize, *unpackSize);

+  

+  *unpackSize = (UInt32)(p->nowPos64 - nowPos64);

+  *destLen -= outStream.rem;

+  if (outStream.overflow)

+    return SZ_ERROR_OUTPUT_EOF;

+

+  return res;

+}

+

+

+static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)

+{

+  SRes res = SZ_OK;

+

+  #ifndef _7ZIP_ST

+  Byte allocaDummy[0x300];

+  allocaDummy[0] = 0;

+  allocaDummy[1] = allocaDummy[0];

+  #endif

+

+  for (;;)

+  {

+    res = LzmaEnc_CodeOneBlock(p, 0, 0);

+    if (res != SZ_OK || p->finished)

+      break;

+    if (progress)

+    {

+      res = ICompressProgress_Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));

+      if (res != SZ_OK)

+      {

+        res = SZ_ERROR_PROGRESS;

+        break;

+      }

+    }

+  }

+  

+  LzmaEnc_Finish(p);

+

+  /*

+  if (res == SZ_OK && !Inline_MatchFinder_IsFinishedOK(&p->matchFinderBase))

+    res = SZ_ERROR_FAIL;

+  }

+  */

+

+  return res;

+}

+

+

+SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,

+    ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig));

+  return LzmaEnc_Encode2((CLzmaEnc *)pp, progress);

+}

+

+

+SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)

+{

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+  unsigned i;

+  UInt32 dictSize = p->dictSize;

+  if (*size < LZMA_PROPS_SIZE)

+    return SZ_ERROR_PARAM;

+  *size = LZMA_PROPS_SIZE;

+  props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc);

+

+  if (dictSize >= ((UInt32)1 << 22))

+  {

+    UInt32 kDictMask = ((UInt32)1 << 20) - 1;

+    if (dictSize < (UInt32)0xFFFFFFFF - kDictMask)

+      dictSize = (dictSize + kDictMask) & ~kDictMask;

+  }

+  else for (i = 11; i <= 30; i++)

+  {

+    if (dictSize <= ((UInt32)2 << i)) { dictSize = (2 << i); break; }

+    if (dictSize <= ((UInt32)3 << i)) { dictSize = (3 << i); break; }

+  }

+

+  for (i = 0; i < 4; i++)

+    props[1 + i] = (Byte)(dictSize >> (8 * i));

+  return SZ_OK;

+}

+

+

+unsigned LzmaEnc_IsWriteEndMark(CLzmaEncHandle pp)

+{

+  return ((CLzmaEnc *)pp)->writeEndMark;

+}

+

+

+SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,

+    int writeEndMark, ICompressProgress *progress, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  SRes res;

+  CLzmaEnc *p = (CLzmaEnc *)pp;

+

+  CLzmaEnc_SeqOutStreamBuf outStream;

+

+  outStream.vt.Write = SeqOutStreamBuf_Write;

+  outStream.data = dest;

+  outStream.rem = *destLen;

+  outStream.overflow = False;

+

+  p->writeEndMark = writeEndMark;

+  p->rc.outStream = &outStream.vt;

+

+  res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig);

+  

+  if (res == SZ_OK)

+  {

+    res = LzmaEnc_Encode2(p, progress);

+    if (res == SZ_OK && p->nowPos64 != srcLen)

+      res = SZ_ERROR_FAIL;

+  }

+

+  *destLen -= outStream.rem;

+  if (outStream.overflow)

+    return SZ_ERROR_OUTPUT_EOF;

+  return res;

+}

+

+

+SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,

+    const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,

+    ICompressProgress *progress, ISzAllocPtr alloc, ISzAllocPtr allocBig)

+{

+  CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc);

+  SRes res;

+  if (!p)

+    return SZ_ERROR_MEM;

+

+  res = LzmaEnc_SetProps(p, props);

+  if (res == SZ_OK)

+  {

+    res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize);

+    if (res == SZ_OK)

+      res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen,

+          writeEndMark, progress, alloc, allocBig);

+  }

+

+  LzmaEnc_Destroy(p, alloc, allocBig);

+  return res;

+}