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-rwxr-xr-xdepends/lzma/pavlov/LzmaEnc.c2349
1 files changed, 0 insertions, 2349 deletions
diff --git a/depends/lzma/pavlov/LzmaEnc.c b/depends/lzma/pavlov/LzmaEnc.c
deleted file mode 100755
index ac34eb45..00000000
--- a/depends/lzma/pavlov/LzmaEnc.c
+++ /dev/null
@@ -1,2349 +0,0 @@
-/* LzmaEnc.c -- LZMA Encoder
-2008-10-04 : Igor Pavlov : Public domain */
-
-#include <string.h>
-#include <stdlib.h>
-
-/* #define SHOW_STAT */
-/* #define SHOW_STAT2 */
-
-#if defined(SHOW_STAT) || defined(SHOW_STAT2)
-#include <stdio.h>
-#endif
-
-#include "LzmaEnc.h"
-
-#include "LzFind.h"
-#ifdef COMPRESS_MF_MT
-#include "LzFindMt.h"
-#endif
-
-#ifdef SHOW_STAT
-static int ttt = 0;
-#endif
-
-#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1)
-
-#define kBlockSize (9 << 10)
-#define kUnpackBlockSize (1 << 18)
-#define kMatchArraySize (1 << 21)
-#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX)
-
-#define kNumMaxDirectBits (31)
-
-#define kNumTopBits 24
-#define kTopValue ((uint32_t)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->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 == 6 ? (1 << 25) : (1 << 26)));
- 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 = ((p->btMode && p->algo) ? 2 : 1);
-}
-
-uint32_t LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
-{
- CLzmaEncProps props = *props2;
- LzmaEncProps_Normalize(&props);
- return props.dictSize;
-}
-
-/* #define LZMA_LOG_BSR */
-/* Define it for Intel's CPU */
-
-#ifdef LZMA_LOG_BSR
-
-#define kDicLogSizeMaxCompress 30
-
-#define BSR2_RET(pos, res) \
- { \
- unsigned long i; \
- _BitScanReverse(&i, (pos)); \
- res = (i + i) + ((pos >> (i - 1)) & 1); \
- }
-
-uint32_t GetPosSlot1(uint32_t pos)
-{
- uint32_t 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 + (int)sizeof(size_t) / 2)
-#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
-
-void LzmaEnc_FastPosInit(uint8_t *g_FastPos)
-{
- int c = 2, slotFast;
- g_FastPos[0] = 0;
- g_FastPos[1] = 1;
-
- for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++)
- {
- uint32_t k = (1 << ((slotFast >> 1) - 1));
- uint32_t j;
- for (j = 0; j < k; j++, c++)
- g_FastPos[c] = (uint8_t)slotFast;
- }
-}
-
-#define BSR2_RET(pos, res) \
- { \
- uint32_t i = 6 + ((kNumLogBits - 1) & \
- (0 - (((((uint32_t)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
- res = p->g_FastPos[pos >> i] + (i * 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]; \
- else \
- BSR2_RET(pos, res); \
- }
-
-#endif
-
-#define LZMA_NUM_REPS 4
-
-typedef unsigned CState;
-
-typedef struct _COptimal
-{
- uint32_t price;
-
- CState state;
- int prev1IsChar;
- int prev2;
-
- uint32_t posPrev2;
- uint32_t backPrev2;
-
- uint32_t posPrev;
- uint32_t backPrev;
- uint32_t backs[LZMA_NUM_REPS];
-} COptimal;
-
-#define kNumOpts (1 << 12)
-
-#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 kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
-
-#define kNumFullDistances (1 << (kEndPosModelIndex / 2))
-
-#ifdef _LZMA_PROB32
-#define CLzmaProb uint32_t
-#else
-#define CLzmaProb uint16_t
-#endif
-
-#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 kLenNumMidBits 3
-#define kLenNumMidSymbols (1 << kLenNumMidBits)
-#define kLenNumHighBits 8
-#define kLenNumHighSymbols (1 << kLenNumHighBits)
-
-#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
-
-#define LZMA_MATCH_LEN_MIN 2
-#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)
-
-#define kNumStates 12
-
-typedef struct
-{
- CLzmaProb choice;
- CLzmaProb choice2;
- CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits];
- CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits];
- CLzmaProb high[kLenNumHighSymbols];
-} CLenEnc;
-
-typedef struct
-{
- CLenEnc p;
- uint32_t prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
- uint32_t tableSize;
- uint32_t counters[LZMA_NUM_PB_STATES_MAX];
-} CLenPriceEnc;
-
-typedef struct _CRangeEnc
-{
- uint32_t range;
- uint8_t cache;
- uint64_t low;
- uint64_t cacheSize;
- uint8_t *buf;
- uint8_t *bufLim;
- uint8_t *bufBase;
- ISeqOutStream *outStream;
- uint64_t processed;
- SRes res;
-} CRangeEnc;
-
-typedef struct _CSeqInStreamBuf
-{
- ISeqInStream funcTable;
- const uint8_t *data;
- size_t rem;
-} CSeqInStreamBuf;
-
-static SRes MyRead(void *pp, void *data, size_t *size)
-{
- size_t curSize = *size;
- CSeqInStreamBuf *p = (CSeqInStreamBuf *)pp;
- if (p->rem < curSize)
- curSize = p->rem;
- memcpy(data, p->data, curSize);
- p->rem -= curSize;
- p->data += curSize;
- *size = curSize;
- return SZ_OK;
-}
-
-typedef struct
-{
- CLzmaProb *litProbs;
-
- CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
- CLzmaProb isRep[kNumStates];
- CLzmaProb isRepG0[kNumStates];
- CLzmaProb isRepG1[kNumStates];
- CLzmaProb isRepG2[kNumStates];
- CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
-
- CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
- CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
- CLzmaProb posAlignEncoder[1 << kNumAlignBits];
-
- CLenPriceEnc lenEnc;
- CLenPriceEnc repLenEnc;
-
- uint32_t reps[LZMA_NUM_REPS];
- uint32_t state;
-} CSaveState;
-
-typedef struct _CLzmaEnc
-{
- IMatchFinder matchFinder;
- void *matchFinderObj;
-
-#ifdef COMPRESS_MF_MT
- Bool mtMode;
- CMatchFinderMt matchFinderMt;
-#endif
-
- CMatchFinder matchFinderBase;
-
-#ifdef COMPRESS_MF_MT
- Byte pad[128];
-#endif
-
- uint32_t optimumEndIndex;
- uint32_t optimumCurrentIndex;
-
- uint32_t longestMatchLength;
- uint32_t numPairs;
- uint32_t numAvail;
- COptimal opt[kNumOpts];
-
-#ifndef LZMA_LOG_BSR
- uint8_t g_FastPos[1 << kNumLogBits];
-#endif
-
- uint32_t ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
- uint32_t matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
- uint32_t numFastBytes;
- uint32_t additionalOffset;
- uint32_t reps[LZMA_NUM_REPS];
- uint32_t state;
-
- uint32_t posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
- uint32_t distancesPrices[kNumLenToPosStates][kNumFullDistances];
- uint32_t alignPrices[kAlignTableSize];
- uint32_t alignPriceCount;
-
- uint32_t distTableSize;
-
- unsigned lc, lp, pb;
- unsigned lpMask, pbMask;
-
- CLzmaProb *litProbs;
-
- CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
- CLzmaProb isRep[kNumStates];
- CLzmaProb isRepG0[kNumStates];
- CLzmaProb isRepG1[kNumStates];
- CLzmaProb isRepG2[kNumStates];
- CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
-
- CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
- CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
- CLzmaProb posAlignEncoder[1 << kNumAlignBits];
-
- CLenPriceEnc lenEnc;
- CLenPriceEnc repLenEnc;
-
- unsigned lclp;
-
- Bool fastMode;
-
- CRangeEnc rc;
-
- Bool writeEndMark;
- uint64_t nowPos64;
- uint32_t matchPriceCount;
- Bool finished;
- Bool multiThread;
-
- SRes result;
- uint32_t dictSize;
- uint32_t matchFinderCycles;
-
- ISeqInStream *inStream;
- CSeqInStreamBuf seqBufInStream;
-
- CSaveState saveState;
-} CLzmaEnc;
-
-void LzmaEnc_SaveState(CLzmaEncHandle pp)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- CSaveState *dest = &p->saveState;
- int i;
- dest->lenEnc = p->lenEnc;
- dest->repLenEnc = p->repLenEnc;
- dest->state = p->state;
-
- for (i = 0; i < kNumStates; i++)
- {
- memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
- memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
- }
- for (i = 0; i < kNumLenToPosStates; i++)
- memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
- memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
- memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
- memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
- memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
- memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
- memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
- memcpy(dest->reps, p->reps, sizeof(p->reps));
- memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
-}
-
-void LzmaEnc_RestoreState(CLzmaEncHandle pp)
-{
- CLzmaEnc *dest = (CLzmaEnc *)pp;
- const CSaveState *p = &dest->saveState;
- int i;
- dest->lenEnc = p->lenEnc;
- dest->repLenEnc = p->repLenEnc;
- dest->state = p->state;
-
- for (i = 0; i < kNumStates; i++)
- {
- memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
- memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
- }
- for (i = 0; i < kNumLenToPosStates; i++)
- memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
- memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
- memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
- memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
- memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
- memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
- memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
- memcpy(dest->reps, p->reps, sizeof(p->reps));
- memcpy(dest->litProbs, p->litProbs, (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 > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30))
- return SZ_ERROR_PARAM;
- p->dictSize = props.dictSize;
- p->matchFinderCycles = props.mc;
- {
- 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 = props.btMode;
- {
- uint32_t 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;
-
-#ifdef COMPRESS_MF_MT
- /*
- if (newMultiThread != _multiThread)
- {
- ReleaseMatchFinder();
- _multiThread = newMultiThread;
- }
- */
- p->multiThread = (props.numThreads > 1);
-#endif
-
- return SZ_OK;
-}
-
-static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5};
-static const int kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
-static const int kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};
-static const int kShortRepNextStates[kNumStates] = {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};
-
-#define IsCharState(s) ((s) < 7)
-
-#define GetLenToPosState(len) \
- (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)
-
-#define kInfinityPrice (1 << 30)
-
-static void RangeEnc_Construct(CRangeEnc *p)
-{
- p->outStream = 0;
- p->bufBase = 0;
-}
-
-#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)
-
-#define RC_BUF_SIZE (1 << 16)
-static int RangeEnc_Alloc(CRangeEnc *p)
-{
- if (p->bufBase == 0)
- {
- p->bufBase = malloc(RC_BUF_SIZE);
- if (p->bufBase == 0)
- return 0;
- p->bufLim = p->bufBase + RC_BUF_SIZE;
- }
- return 1;
-}
-
-static void RangeEnc_Free(CRangeEnc *p)
-{
- free(p->bufBase);
- p->bufBase = 0;
-}
-
-static void RangeEnc_Init(CRangeEnc *p)
-{
- /* Stream.Init(); */
- p->low = 0;
- p->range = 0xFFFFFFFF;
- p->cacheSize = 1;
- p->cache = 0;
-
- p->buf = p->bufBase;
-
- p->processed = 0;
- p->res = SZ_OK;
-}
-
-static void RangeEnc_FlushStream(CRangeEnc *p)
-{
- size_t num;
- if (p->res != SZ_OK)
- return;
- num = p->buf - p->bufBase;
- if (num != p->outStream->Write(p->outStream, p->bufBase, num))
- p->res = SZ_ERROR_WRITE;
- p->processed += num;
- p->buf = p->bufBase;
-}
-
-static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
-{
- if ((uint32_t)p->low < (uint32_t)0xFF000000 || (int)(p->low >> 32) != 0)
- {
- uint8_t temp = p->cache;
- do
- {
- uint8_t *buf = p->buf;
- *buf++ = (uint8_t)(temp + (uint8_t)(p->low >> 32));
- p->buf = buf;
- if (buf == p->bufLim)
- RangeEnc_FlushStream(p);
- temp = 0xFF;
- } while (--p->cacheSize != 0);
- p->cache = (uint8_t)((uint32_t)p->low >> 24);
- }
- p->cacheSize++;
- p->low = (uint32_t)p->low << 8;
-}
-
-static void RangeEnc_FlushData(CRangeEnc *p)
-{
- int i;
- for (i = 0; i < 5; i++)
- RangeEnc_ShiftLow(p);
-}
-
-static void RangeEnc_EncodeDirectBits(CRangeEnc *p, uint32_t value, int numBits)
-{
- do
- {
- p->range >>= 1;
- p->low += p->range & (0 - ((value >> --numBits) & 1));
- if (p->range < kTopValue)
- {
- p->range <<= 8;
- RangeEnc_ShiftLow(p);
- }
- } while (numBits != 0);
-}
-
-static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, uint32_t symbol)
-{
- uint32_t ttt = *prob;
- uint32_t newBound = (p->range >> kNumBitModelTotalBits) * ttt;
- if (symbol == 0)
- {
- p->range = newBound;
- ttt += (kBitModelTotal - ttt) >> kNumMoveBits;
- }
- else
- {
- p->low += newBound;
- p->range -= newBound;
- ttt -= ttt >> kNumMoveBits;
- }
- *prob = (CLzmaProb)ttt;
- if (p->range < kTopValue)
- {
- p->range <<= 8;
- RangeEnc_ShiftLow(p);
- }
-}
-
-static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, uint32_t symbol)
-{
- symbol |= 0x100;
- do
- {
- RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1);
- symbol <<= 1;
- } while (symbol < 0x10000);
-}
-
-static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, uint32_t symbol,
- uint32_t matchByte)
-{
- uint32_t offs = 0x100;
- symbol |= 0x100;
- do
- {
- matchByte <<= 1;
- RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)),
- (symbol >> 7) & 1);
- symbol <<= 1;
- offs &= ~(matchByte ^ symbol);
- } while (symbol < 0x10000);
-}
-
-void LzmaEnc_InitPriceTables(uint32_t *ProbPrices)
-{
- uint32_t i;
- for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal;
- i += (1 << kNumMoveReducingBits))
- {
- const int kCyclesBits = kNumBitPriceShiftBits;
- uint32_t w = i;
- uint32_t bitCount = 0;
- int j;
- for (j = 0; j < kCyclesBits; j++)
- {
- w = w * w;
- bitCount <<= 1;
- while (w >= ((uint32_t)1 << 16))
- {
- w >>= 1;
- bitCount++;
- }
- }
- ProbPrices[i >> kNumMoveReducingBits] =
- ((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);
- }
-}
-
-#define GET_PRICE(prob, symbol) \
- p->ProbPrices \
- [((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
-
-#define GET_PRICEa(prob, symbol) \
- ProbPrices[((prob) ^ ((-((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_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits]
-#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
-
-static uint32_t LitEnc_GetPrice(const CLzmaProb *probs, uint32_t symbol, uint32_t *ProbPrices)
-{
- uint32_t price = 0;
- symbol |= 0x100;
- do
- {
- price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1);
- symbol <<= 1;
- } while (symbol < 0x10000);
- return price;
-}
-
-static uint32_t LitEnc_GetPriceMatched(const CLzmaProb *probs, uint32_t symbol,
- uint32_t matchByte, uint32_t *ProbPrices)
-{
- uint32_t price = 0;
- uint32_t 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_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, uint32_t symbol)
-{
- uint32_t m = 1;
- int i;
- for (i = numBitLevels; i != 0;)
- {
- uint32_t bit;
- i--;
- bit = (symbol >> i) & 1;
- RangeEnc_EncodeBit(rc, probs + m, bit);
- m = (m << 1) | bit;
- }
-}
-
-static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels,
- uint32_t symbol)
-{
- uint32_t m = 1;
- int i;
- for (i = 0; i < numBitLevels; i++)
- {
- uint32_t bit = symbol & 1;
- RangeEnc_EncodeBit(rc, probs + m, bit);
- m = (m << 1) | bit;
- symbol >>= 1;
- }
-}
-
-static uint32_t RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, uint32_t symbol,
- uint32_t *ProbPrices)
-{
- uint32_t price = 0;
- symbol |= (1 << numBitLevels);
- while (symbol != 1)
- {
- price += GET_PRICEa(probs[symbol >> 1], symbol & 1);
- symbol >>= 1;
- }
- return price;
-}
-
-static uint32_t RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels,
- uint32_t symbol, uint32_t *ProbPrices)
-{
- uint32_t price = 0;
- uint32_t m = 1;
- int i;
- for (i = numBitLevels; i != 0; i--)
- {
- uint32_t bit = symbol & 1;
- symbol >>= 1;
- price += GET_PRICEa(probs[m], bit);
- m = (m << 1) | bit;
- }
- return price;
-}
-
-static void LenEnc_Init(CLenEnc *p)
-{
- unsigned i;
- p->choice = p->choice2 = kProbInitValue;
- for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++)
- p->low[i] = kProbInitValue;
- for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++)
- p->mid[i] = kProbInitValue;
- for (i = 0; i < kLenNumHighSymbols; i++)
- p->high[i] = kProbInitValue;
-}
-
-static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, uint32_t symbol, uint32_t posState)
-{
- if (symbol < kLenNumLowSymbols)
- {
- RangeEnc_EncodeBit(rc, &p->choice, 0);
- RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol);
- }
- else
- {
- RangeEnc_EncodeBit(rc, &p->choice, 1);
- if (symbol < kLenNumLowSymbols + kLenNumMidSymbols)
- {
- RangeEnc_EncodeBit(rc, &p->choice2, 0);
- RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits,
- symbol - kLenNumLowSymbols);
- }
- else
- {
- RangeEnc_EncodeBit(rc, &p->choice2, 1);
- RcTree_Encode(rc, p->high, kLenNumHighBits,
- symbol - kLenNumLowSymbols - kLenNumMidSymbols);
- }
- }
-}
-
-static void LenEnc_SetPrices(CLenEnc *p, uint32_t posState, uint32_t numSymbols,
- uint32_t *prices, uint32_t *ProbPrices)
-{
- uint32_t a0 = GET_PRICE_0a(p->choice);
- uint32_t a1 = GET_PRICE_1a(p->choice);
- uint32_t b0 = a1 + GET_PRICE_0a(p->choice2);
- uint32_t b1 = a1 + GET_PRICE_1a(p->choice2);
- uint32_t i = 0;
- for (i = 0; i < kLenNumLowSymbols; i++)
- {
- if (i >= numSymbols)
- return;
- prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits,
- i, ProbPrices);
- }
- for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++)
- {
- if (i >= numSymbols)
- return;
- prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits,
- i - kLenNumLowSymbols, ProbPrices);
- }
- for (; i < numSymbols; i++)
- prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits,
- i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
-}
-
-static void MY_FAST_CALL
-LenPriceEnc_UpdateTable(CLenPriceEnc *p, uint32_t posState, uint32_t *ProbPrices)
-{
- LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
- p->counters[posState] = p->tableSize;
-}
-
-static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, uint32_t numPosStates,
- uint32_t *ProbPrices)
-{
- uint32_t posState;
- for (posState = 0; posState < numPosStates; posState++)
- LenPriceEnc_UpdateTable(p, posState, ProbPrices);
-}
-
-static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, uint32_t symbol, uint32_t posState,
- Bool updatePrice, uint32_t *ProbPrices)
-{
- LenEnc_Encode(&p->p, rc, symbol, posState);
- if (updatePrice)
- if (--p->counters[posState] == 0)
- LenPriceEnc_UpdateTable(p, posState, ProbPrices);
-}
-
-static void MovePos(CLzmaEnc *p, uint32_t num)
-{
-#ifdef SHOW_STAT
- ttt += num;
- printf("\n MovePos %d", num);
-#endif
- if (num != 0)
- {
- p->additionalOffset += num;
- p->matchFinder.Skip(p->matchFinderObj, num);
- }
-}
-
-static uint32_t ReadMatchDistances(CLzmaEnc *p, uint32_t *numDistancePairsRes)
-{
- uint32_t lenRes = 0, numPairs;
- p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
- numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
-#ifdef SHOW_STAT
- printf("\n i = %d numPairs = %d ", ttt, numPairs / 2);
- ttt++;
- {
- uint32_t i;
- for (i = 0; i < numPairs; i += 2)
- printf("%2d %6d | ", p->matches[i], p->matches[i + 1]);
- }
-#endif
- if (numPairs > 0)
- {
- lenRes = p->matches[numPairs - 2];
- if (lenRes == p->numFastBytes)
- {
- const uint8_t *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
- uint32_t distance = p->matches[numPairs - 1] + 1;
- uint32_t numAvail = p->numAvail;
- if (numAvail > LZMA_MATCH_LEN_MAX)
- numAvail = LZMA_MATCH_LEN_MAX;
- {
- const uint8_t *pby2 = pby - distance;
- for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++)
- ;
- }
- }
- }
- p->additionalOffset++;
- *numDistancePairsRes = numPairs;
- return lenRes;
-}
-
-#define MakeAsChar(p) \
- (p)->backPrev = (uint32_t)(-1); \
- (p)->prev1IsChar = False;
-#define MakeAsShortRep(p) \
- (p)->backPrev = 0; \
- (p)->prev1IsChar = False;
-#define IsShortRep(p) ((p)->backPrev == 0)
-
-static uint32_t GetRepLen1Price(CLzmaEnc *p, uint32_t state, uint32_t posState)
-{
- return GET_PRICE_0(p->isRepG0[state]) + GET_PRICE_0(p->isRep0Long[state][posState]);
-}
-
-static uint32_t GetPureRepPrice(CLzmaEnc *p, uint32_t repIndex, uint32_t state,
- uint32_t posState)
-{
- uint32_t price;
- if (repIndex == 0)
- {
- price = GET_PRICE_0(p->isRepG0[state]);
- price += GET_PRICE_1(p->isRep0Long[state][posState]);
- }
- else
- {
- price = GET_PRICE_1(p->isRepG0[state]);
- if (repIndex == 1)
- price += GET_PRICE_0(p->isRepG1[state]);
- else
- {
- price += GET_PRICE_1(p->isRepG1[state]);
- price += GET_PRICE(p->isRepG2[state], repIndex - 2);
- }
- }
- return price;
-}
-
-static uint32_t GetRepPrice(CLzmaEnc *p, uint32_t repIndex, uint32_t len, uint32_t state,
- uint32_t posState)
-{
- return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] +
- GetPureRepPrice(p, repIndex, state, posState);
-}
-
-static uint32_t Backward(CLzmaEnc *p, uint32_t *backRes, uint32_t cur)
-{
- uint32_t posMem = p->opt[cur].posPrev;
- uint32_t backMem = p->opt[cur].backPrev;
- p->optimumEndIndex = cur;
- do
- {
- if (p->opt[cur].prev1IsChar)
- {
- MakeAsChar(&p->opt[posMem])
- p->opt[posMem].posPrev = posMem - 1;
- if (p->opt[cur].prev2)
- {
- p->opt[posMem - 1].prev1IsChar = False;
- p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2;
- p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2;
- }
- }
- {
- uint32_t posPrev = posMem;
- uint32_t backCur = backMem;
-
- backMem = p->opt[posPrev].backPrev;
- posMem = p->opt[posPrev].posPrev;
-
- p->opt[posPrev].backPrev = backCur;
- p->opt[posPrev].posPrev = cur;
- cur = posPrev;
- }
- } while (cur != 0);
- *backRes = p->opt[0].backPrev;
- p->optimumCurrentIndex = p->opt[0].posPrev;
- return p->optimumCurrentIndex;
-}
-
-#define LIT_PROBS(pos, prevByte) \
- (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300)
-
-static uint32_t GetOptimum(CLzmaEnc *p, uint32_t position, uint32_t *backRes)
-{
- uint32_t numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur;
- uint32_t matchPrice, repMatchPrice, normalMatchPrice;
- uint32_t reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS];
- uint32_t *matches;
- const uint8_t *data;
- uint8_t curByte, matchByte;
- if (p->optimumEndIndex != p->optimumCurrentIndex)
- {
- const COptimal *opt = &p->opt[p->optimumCurrentIndex];
- uint32_t lenRes = opt->posPrev - p->optimumCurrentIndex;
- *backRes = opt->backPrev;
- p->optimumCurrentIndex = opt->posPrev;
- return lenRes;
- }
- p->optimumCurrentIndex = p->optimumEndIndex = 0;
-
- if (p->additionalOffset == 0)
- mainLen = ReadMatchDistances(p, &numPairs);
- else
- {
- mainLen = p->longestMatchLength;
- numPairs = p->numPairs;
- }
-
- numAvail = p->numAvail;
- if (numAvail < 2)
- {
- *backRes = (uint32_t)(-1);
- 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++)
- {
- uint32_t lenTest;
- const uint8_t *data2;
- reps[i] = p->reps[i];
- data2 = data - (reps[i] + 1);
- if (data[0] != data2[0] || data[1] != data2[1])
- {
- repLens[i] = 0;
- continue;
- }
- for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++)
- ;
- repLens[i] = lenTest;
- if (lenTest > repLens[repMaxIndex])
- repMaxIndex = i;
- }
- if (repLens[repMaxIndex] >= p->numFastBytes)
- {
- uint32_t lenRes;
- *backRes = repMaxIndex;
- lenRes = repLens[repMaxIndex];
- MovePos(p, lenRes - 1);
- return lenRes;
- }
-
- matches = p->matches;
- if (mainLen >= p->numFastBytes)
- {
- *backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
- MovePos(p, mainLen - 1);
- return mainLen;
- }
- curByte = *data;
- matchByte = *(data - (reps[0] + 1));
-
- if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2)
- {
- *backRes = (uint32_t) - 1;
- 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]) +
- (!IsCharState(p->state)
- ? LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices)
- : LitEnc_GetPrice(probs, curByte, p->ProbPrices));
- }
-
- MakeAsChar(&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_t shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState);
- if (shortRepPrice < p->opt[1].price)
- {
- p->opt[1].price = shortRepPrice;
- MakeAsShortRep(&p->opt[1]);
- }
- }
- lenEnd = ((mainLen >= repLens[repMaxIndex]) ? mainLen : repLens[repMaxIndex]);
-
- if (lenEnd < 2)
- {
- *backRes = p->opt[1].backPrev;
- return 1;
- }
-
- p->opt[1].posPrev = 0;
- for (i = 0; i < LZMA_NUM_REPS; i++)
- p->opt[0].backs[i] = reps[i];
-
- len = lenEnd;
- do
- p->opt[len--].price = kInfinityPrice;
- while (len >= 2);
-
- for (i = 0; i < LZMA_NUM_REPS; i++)
- {
- uint32_t repLen = repLens[i];
- uint32_t price;
- if (repLen < 2)
- continue;
- price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState);
- do
- {
- uint32_t curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2];
- COptimal *opt = &p->opt[repLen];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = 0;
- opt->backPrev = i;
- opt->prev1IsChar = False;
- }
- } while (--repLen >= 2);
- }
-
- normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
-
- len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);
- if (len <= mainLen)
- {
- uint32_t offs = 0;
- while (len > matches[offs])
- offs += 2;
- for (;; len++)
- {
- COptimal *opt;
- uint32_t distance = matches[offs + 1];
-
- uint32_t curAndLenPrice =
- normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN];
- uint32_t lenToPosState = GetLenToPosState(len);
- if (distance < kNumFullDistances)
- curAndLenPrice += p->distancesPrices[lenToPosState][distance];
- else
- {
- uint32_t slot;
- GetPosSlot2(distance, slot);
- curAndLenPrice += p->alignPrices[distance & kAlignMask] +
- p->posSlotPrices[lenToPosState][slot];
- }
- opt = &p->opt[len];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = 0;
- opt->backPrev = distance + LZMA_NUM_REPS;
- opt->prev1IsChar = False;
- }
- 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 <= lenEnd; i++)
- printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
- }
-#endif
-
- for (;;)
- {
- uint32_t numAvailFull, newLen, numPairs, posPrev, state, posState, startLen;
- uint32_t curPrice, curAnd1Price, matchPrice, repMatchPrice;
- Bool nextIsChar;
- uint8_t curByte, matchByte;
- const uint8_t *data;
- COptimal *curOpt;
- COptimal *nextOpt;
-
- cur++;
- if (cur == lenEnd)
- return Backward(p, backRes, cur);
-
- newLen = ReadMatchDistances(p, &numPairs);
- if (newLen >= p->numFastBytes)
- {
- p->numPairs = numPairs;
- p->longestMatchLength = newLen;
- return Backward(p, backRes, cur);
- }
- position++;
- curOpt = &p->opt[cur];
- posPrev = curOpt->posPrev;
- if (curOpt->prev1IsChar)
- {
- posPrev--;
- if (curOpt->prev2)
- {
- state = p->opt[curOpt->posPrev2].state;
- if (curOpt->backPrev2 < LZMA_NUM_REPS)
- state = kRepNextStates[state];
- else
- state = kMatchNextStates[state];
- }
- else
- state = p->opt[posPrev].state;
- state = kLiteralNextStates[state];
- }
- else
- state = p->opt[posPrev].state;
- if (posPrev == cur - 1)
- {
- if (IsShortRep(curOpt))
- state = kShortRepNextStates[state];
- else
- state = kLiteralNextStates[state];
- }
- else
- {
- uint32_t pos;
- const COptimal *prevOpt;
- if (curOpt->prev1IsChar && curOpt->prev2)
- {
- posPrev = curOpt->posPrev2;
- pos = curOpt->backPrev2;
- state = kRepNextStates[state];
- }
- else
- {
- pos = curOpt->backPrev;
- if (pos < LZMA_NUM_REPS)
- state = kRepNextStates[state];
- else
- state = kMatchNextStates[state];
- }
- prevOpt = &p->opt[posPrev];
- if (pos < LZMA_NUM_REPS)
- {
- uint32_t i;
- reps[0] = prevOpt->backs[pos];
- for (i = 1; i <= pos; i++)
- reps[i] = prevOpt->backs[i - 1];
- for (; i < LZMA_NUM_REPS; i++)
- reps[i] = prevOpt->backs[i];
- }
- else
- {
- uint32_t i;
- reps[0] = (pos - LZMA_NUM_REPS);
- for (i = 1; i < LZMA_NUM_REPS; i++)
- reps[i] = prevOpt->backs[i - 1];
- }
- }
- curOpt->state = (CState)state;
-
- curOpt->backs[0] = reps[0];
- curOpt->backs[1] = reps[1];
- curOpt->backs[2] = reps[2];
- curOpt->backs[3] = reps[3];
-
- curPrice = curOpt->price;
- nextIsChar = False;
- data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
- curByte = *data;
- matchByte = *(data - (reps[0] + 1));
-
- posState = (position & p->pbMask);
-
- curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]);
- {
- const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
- curAnd1Price +=
- (!IsCharState(state)
- ? LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices)
- : LitEnc_GetPrice(probs, curByte, p->ProbPrices));
- }
-
- nextOpt = &p->opt[cur + 1];
-
- if (curAnd1Price < nextOpt->price)
- {
- nextOpt->price = curAnd1Price;
- nextOpt->posPrev = cur;
- MakeAsChar(nextOpt);
- nextIsChar = True;
- }
-
- matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);
- repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);
-
- if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0))
- {
- uint32_t shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState);
- if (shortRepPrice <= nextOpt->price)
- {
- nextOpt->price = shortRepPrice;
- nextOpt->posPrev = cur;
- MakeAsShortRep(nextOpt);
- nextIsChar = True;
- }
- }
- numAvailFull = p->numAvail;
- {
- uint32_t temp = kNumOpts - 1 - cur;
- if (temp < numAvailFull)
- numAvailFull = temp;
- }
-
- if (numAvailFull < 2)
- continue;
- numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes);
-
- if (!nextIsChar && matchByte != curByte) /* speed optimization */
- {
- /* try Literal + rep0 */
- uint32_t temp;
- uint32_t lenTest2;
- const uint8_t *data2 = data - (reps[0] + 1);
- uint32_t limit = p->numFastBytes + 1;
- if (limit > numAvailFull)
- limit = numAvailFull;
-
- for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++)
- ;
- lenTest2 = temp - 1;
- if (lenTest2 >= 2)
- {
- uint32_t state2 = kLiteralNextStates[state];
- uint32_t posStateNext = (position + 1) & p->pbMask;
- uint32_t nextRepMatchPrice = curAnd1Price +
- GET_PRICE_1(p->isMatch[state2][posStateNext]) +
- GET_PRICE_1(p->isRep[state2]);
- /* for (; lenTest2 >= 2; lenTest2--) */
- {
- uint32_t curAndLenPrice;
- COptimal *opt;
- uint32_t offset = cur + 1 + lenTest2;
- while (lenEnd < offset)
- p->opt[++lenEnd].price = kInfinityPrice;
- curAndLenPrice =
- nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
- opt = &p->opt[offset];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = cur + 1;
- opt->backPrev = 0;
- opt->prev1IsChar = True;
- opt->prev2 = False;
- }
- }
- }
- }
-
- startLen = 2; /* speed optimization */
- {
- uint32_t repIndex;
- for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++)
- {
- uint32_t lenTest;
- uint32_t lenTestTemp;
- uint32_t price;
- const uint8_t *data2 = data - (reps[repIndex] + 1);
- if (data[0] != data2[0] || data[1] != data2[1])
- continue;
- for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest];
- lenTest++)
- ;
- while (lenEnd < cur + lenTest)
- p->opt[++lenEnd].price = kInfinityPrice;
- lenTestTemp = lenTest;
- price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState);
- do
- {
- uint32_t curAndLenPrice =
- price + p->repLenEnc.prices[posState][lenTest - 2];
- COptimal *opt = &p->opt[cur + lenTest];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = cur;
- opt->backPrev = repIndex;
- opt->prev1IsChar = False;
- }
- } while (--lenTest >= 2);
- lenTest = lenTestTemp;
-
- if (repIndex == 0)
- startLen = lenTest + 1;
-
- /* if (_maxMode) */
- {
- uint32_t lenTest2 = lenTest + 1;
- uint32_t limit = lenTest2 + p->numFastBytes;
- uint32_t nextRepMatchPrice;
- if (limit > numAvailFull)
- limit = numAvailFull;
- for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++)
- ;
- lenTest2 -= lenTest + 1;
- if (lenTest2 >= 2)
- {
- uint32_t state2 = kRepNextStates[state];
- uint32_t posStateNext = (position + lenTest) & p->pbMask;
- uint32_t curAndLenCharPrice =
- price + p->repLenEnc.prices[posState][lenTest - 2] +
- GET_PRICE_0(p->isMatch[state2][posStateNext]) +
- LitEnc_GetPriceMatched(
- LIT_PROBS(position + lenTest, data[lenTest - 1]), data[lenTest],
- data2[lenTest], p->ProbPrices);
- state2 = kLiteralNextStates[state2];
- posStateNext = (position + lenTest + 1) & p->pbMask;
- nextRepMatchPrice = curAndLenCharPrice +
- GET_PRICE_1(p->isMatch[state2][posStateNext]) +
- GET_PRICE_1(p->isRep[state2]);
-
- /* for (; lenTest2 >= 2; lenTest2--) */
- {
- uint32_t curAndLenPrice;
- COptimal *opt;
- uint32_t offset = cur + lenTest + 1 + lenTest2;
- while (lenEnd < offset)
- p->opt[++lenEnd].price = kInfinityPrice;
- curAndLenPrice = nextRepMatchPrice +
- GetRepPrice(p, 0, lenTest2, state2, posStateNext);
- opt = &p->opt[offset];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = cur + lenTest + 1;
- opt->backPrev = 0;
- opt->prev1IsChar = True;
- opt->prev2 = True;
- opt->posPrev2 = cur;
- opt->backPrev2 = repIndex;
- }
- }
- }
- }
- }
- }
- /* for (uint32_t lenTest = 2; lenTest <= newLen; lenTest++) */
- if (newLen > numAvail)
- {
- newLen = numAvail;
- for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2)
- ;
- matches[numPairs] = newLen;
- numPairs += 2;
- }
- if (newLen >= startLen)
- {
- uint32_t normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
- uint32_t offs, curBack, posSlot;
- uint32_t lenTest;
- while (lenEnd < cur + newLen)
- p->opt[++lenEnd].price = kInfinityPrice;
-
- offs = 0;
- while (startLen > matches[offs])
- offs += 2;
- curBack = matches[offs + 1];
- GetPosSlot2(curBack, posSlot);
- for (lenTest = /*2*/ startLen;; lenTest++)
- {
- uint32_t curAndLenPrice =
- normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN];
- uint32_t lenToPosState = GetLenToPosState(lenTest);
- COptimal *opt;
- if (curBack < kNumFullDistances)
- curAndLenPrice += p->distancesPrices[lenToPosState][curBack];
- else
- curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] +
- p->alignPrices[curBack & kAlignMask];
-
- opt = &p->opt[cur + lenTest];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = cur;
- opt->backPrev = curBack + LZMA_NUM_REPS;
- opt->prev1IsChar = False;
- }
-
- if (/*_maxMode && */ lenTest == matches[offs])
- {
- /* Try Match + Literal + Rep0 */
- const uint8_t *data2 = data - (curBack + 1);
- uint32_t lenTest2 = lenTest + 1;
- uint32_t limit = lenTest2 + p->numFastBytes;
- uint32_t nextRepMatchPrice;
- if (limit > numAvailFull)
- limit = numAvailFull;
- for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++)
- ;
- lenTest2 -= lenTest + 1;
- if (lenTest2 >= 2)
- {
- uint32_t state2 = kMatchNextStates[state];
- uint32_t posStateNext = (position + lenTest) & p->pbMask;
- uint32_t curAndLenCharPrice =
- curAndLenPrice + GET_PRICE_0(p->isMatch[state2][posStateNext]) +
- LitEnc_GetPriceMatched(
- LIT_PROBS(position + lenTest, data[lenTest - 1]), data[lenTest],
- data2[lenTest], p->ProbPrices);
- state2 = kLiteralNextStates[state2];
- posStateNext = (posStateNext + 1) & p->pbMask;
- nextRepMatchPrice = curAndLenCharPrice +
- GET_PRICE_1(p->isMatch[state2][posStateNext]) +
- GET_PRICE_1(p->isRep[state2]);
-
- /* for (; lenTest2 >= 2; lenTest2--) */
- {
- uint32_t offset = cur + lenTest + 1 + lenTest2;
- uint32_t curAndLenPrice;
- COptimal *opt;
- while (lenEnd < offset)
- p->opt[++lenEnd].price = kInfinityPrice;
- curAndLenPrice = nextRepMatchPrice +
- GetRepPrice(p, 0, lenTest2, state2, posStateNext);
- opt = &p->opt[offset];
- if (curAndLenPrice < opt->price)
- {
- opt->price = curAndLenPrice;
- opt->posPrev = cur + lenTest + 1;
- opt->backPrev = 0;
- opt->prev1IsChar = True;
- opt->prev2 = True;
- opt->posPrev2 = cur;
- opt->backPrev2 = curBack + LZMA_NUM_REPS;
- }
- }
- }
- offs += 2;
- if (offs == numPairs)
- break;
- curBack = matches[offs + 1];
- if (curBack >= kNumFullDistances)
- GetPosSlot2(curBack, posSlot);
- }
- }
- }
- }
-}
-
-#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist))
-
-static uint32_t GetOptimumFast(CLzmaEnc *p, uint32_t *backRes)
-{
- uint32_t numAvail, mainLen, mainDist, numPairs, repIndex, repLen, i;
- const uint8_t *data;
- const uint32_t *matches;
-
- if (p->additionalOffset == 0)
- mainLen = ReadMatchDistances(p, &numPairs);
- else
- {
- mainLen = p->longestMatchLength;
- numPairs = p->numPairs;
- }
-
- numAvail = p->numAvail;
- *backRes = (uint32_t) - 1;
- 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++)
- {
- uint32_t len;
- const uint8_t *data2 = data - (p->reps[i] + 1);
- if (data[0] != data2[0] || data[1] != data2[1])
- continue;
- for (len = 2; len < numAvail && data[len] == data2[len]; len++)
- ;
- if (len >= p->numFastBytes)
- {
- *backRes = i;
- MovePos(p, len - 1);
- return len;
- }
- if (len > repLen)
- {
- repIndex = i;
- repLen = len;
- }
- }
-
- matches = p->matches;
- if (mainLen >= p->numFastBytes)
- {
- *backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
- MovePos(p, mainLen - 1);
- return mainLen;
- }
-
- mainDist = 0; /* for GCC */
- if (mainLen >= 2)
- {
- mainDist = matches[numPairs - 1];
- while (numPairs > 2 && mainLen == matches[numPairs - 4] + 1)
- {
- if (!ChangePair(matches[numPairs - 3], mainDist))
- break;
- numPairs -= 2;
- mainLen = matches[numPairs - 2];
- mainDist = matches[numPairs - 1];
- }
- if (mainLen == 2 && mainDist >= 0x80)
- mainLen = 1;
- }
-
- if (repLen >= 2 &&
- ((repLen + 1 >= mainLen) || (repLen + 2 >= mainLen && mainDist >= (1 << 9)) ||
- (repLen + 3 >= mainLen && mainDist >= (1 << 15))))
- {
- *backRes = repIndex;
- MovePos(p, repLen - 1);
- return repLen;
- }
-
- if (mainLen < 2 || numAvail <= 2)
- return 1;
-
- p->longestMatchLength = ReadMatchDistances(p, &p->numPairs);
- if (p->longestMatchLength >= 2)
- {
- uint32_t newDistance = matches[p->numPairs - 1];
- if ((p->longestMatchLength >= mainLen && newDistance < mainDist) ||
- (p->longestMatchLength == mainLen + 1 && !ChangePair(mainDist, newDistance)) ||
- (p->longestMatchLength > mainLen + 1) ||
- (p->longestMatchLength + 1 >= mainLen && mainLen >= 3 &&
- ChangePair(newDistance, mainDist)))
- return 1;
- }
-
- data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
- for (i = 0; i < LZMA_NUM_REPS; i++)
- {
- uint32_t len, limit;
- const uint8_t *data2 = data - (p->reps[i] + 1);
- if (data[0] != data2[0] || data[1] != data2[1])
- continue;
- limit = mainLen - 1;
- for (len = 2; len < limit && data[len] == data2[len]; len++)
- ;
- if (len >= limit)
- return 1;
- }
- *backRes = mainDist + LZMA_NUM_REPS;
- MovePos(p, mainLen - 2);
- return mainLen;
-}
-
-static void WriteEndMarker(CLzmaEnc *p, uint32_t posState)
-{
- uint32_t len;
- RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
- RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
- p->state = kMatchNextStates[p->state];
- len = LZMA_MATCH_LEN_MIN;
- LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode,
- p->ProbPrices);
- RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits,
- (1 << kNumPosSlotBits) - 1);
- RangeEnc_EncodeDirectBits(&p->rc, (((uint32_t)1 << 30) - 1) >> kNumAlignBits,
- 30 - kNumAlignBits);
- RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
-}
-
-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;
-}
-
-static SRes Flush(CLzmaEnc *p, uint32_t 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)
-{
- uint32_t i;
- for (i = 0; i < kAlignTableSize; i++)
- p->alignPrices[i] =
- RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices);
- p->alignPriceCount = 0;
-}
-
-static void FillDistancesPrices(CLzmaEnc *p)
-{
- uint32_t tempPrices[kNumFullDistances];
- uint32_t i, lenToPosState;
- for (i = kStartPosModelIndex; i < kNumFullDistances; i++)
- {
- uint32_t posSlot = GetPosSlot1(i);
- uint32_t footerBits = ((posSlot >> 1) - 1);
- uint32_t base = ((2 | (posSlot & 1)) << footerBits);
- tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits,
- i - base, p->ProbPrices);
- }
-
- for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)
- {
- uint32_t posSlot;
- const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState];
- uint32_t *posSlotPrices = p->posSlotPrices[lenToPosState];
- for (posSlot = 0; posSlot < p->distTableSize; posSlot++)
- posSlotPrices[posSlot] =
- RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);
- for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++)
- posSlotPrices[posSlot] +=
- ((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
-
- {
- uint32_t *distancesPrices = p->distancesPrices[lenToPosState];
- uint32_t i;
- for (i = 0; i < kStartPosModelIndex; i++)
- distancesPrices[i] = posSlotPrices[i];
- for (; i < kNumFullDistances; i++)
- distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i];
- }
- }
- p->matchPriceCount = 0;
-}
-
-void LzmaEnc_Construct(CLzmaEnc *p)
-{
- RangeEnc_Construct(&p->rc);
- MatchFinder_Construct(&p->matchFinderBase);
-#ifdef COMPRESS_MF_MT
- 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 = 0;
- p->saveState.litProbs = 0;
-}
-
-CLzmaEncHandle LzmaEnc_Create()
-{
- void *p;
- p = malloc(sizeof(CLzmaEnc));
- if (p != 0)
- LzmaEnc_Construct((CLzmaEnc *)p);
- return p;
-}
-
-void LzmaEnc_FreeLits(CLzmaEnc *p)
-{
- free(p->litProbs);
- free(p->saveState.litProbs);
- p->litProbs = 0;
- p->saveState.litProbs = 0;
-}
-
-void LzmaEnc_Destruct(CLzmaEnc *p)
-{
-#ifdef COMPRESS_MF_MT
- MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
-#endif
- MatchFinder_Free(&p->matchFinderBase);
- LzmaEnc_FreeLits(p);
- RangeEnc_Free(&p->rc);
-}
-
-void LzmaEnc_Destroy(CLzmaEncHandle p)
-{
- LzmaEnc_Destruct((CLzmaEnc *)p);
- free(p);
-}
-
-static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, uint32_t maxPackSize,
- uint32_t maxUnpackSize)
-{
- uint32_t nowPos32, startPos32;
- if (p->inStream != 0)
- {
- p->matchFinderBase.stream = p->inStream;
- p->matchFinder.Init(p->matchFinderObj);
- p->inStream = 0;
- }
-
- if (p->finished)
- return p->result;
- RINOK(CheckErrors(p));
-
- nowPos32 = (uint32_t)p->nowPos64;
- startPos32 = nowPos32;
-
- if (p->nowPos64 == 0)
- {
- uint32_t numPairs;
- uint8_t curByte;
- if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
- return Flush(p, nowPos32);
- ReadMatchDistances(p, &numPairs);
- RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0);
- p->state = kLiteralNextStates[p->state];
- curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset);
- LitEnc_Encode(&p->rc, p->litProbs, curByte);
- p->additionalOffset--;
- nowPos32++;
- }
-
- if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)
- for (;;)
- {
- uint32_t pos, len, posState;
-
- if (p->fastMode)
- len = GetOptimumFast(p, &pos);
- else
- len = GetOptimum(p, nowPos32, &pos);
-
-#ifdef SHOW_STAT2
- printf("\n pos = %4X, len = %d pos = %d", nowPos32, len, pos);
-#endif
-
- posState = nowPos32 & p->pbMask;
- if (len == 1 && pos == (uint32_t) - 1)
- {
- uint8_t curByte;
- CLzmaProb *probs;
- const uint8_t *data;
-
- RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0);
- data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) -
- p->additionalOffset;
- curByte = *data;
- probs = LIT_PROBS(nowPos32, *(data - 1));
- if (IsCharState(p->state))
- LitEnc_Encode(&p->rc, probs, curByte);
- else
- LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1));
- p->state = kLiteralNextStates[p->state];
- }
- else
- {
- RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
- if (pos < LZMA_NUM_REPS)
- {
- RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1);
- if (pos == 0)
- {
- RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0);
- RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState],
- ((len == 1) ? 0 : 1));
- }
- else
- {
- uint32_t distance = p->reps[pos];
- RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1);
- if (pos == 1)
- RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0);
- else
- {
- RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1);
- RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2);
- if (pos == 3)
- p->reps[3] = p->reps[2];
- p->reps[2] = p->reps[1];
- }
- p->reps[1] = p->reps[0];
- p->reps[0] = distance;
- }
- if (len == 1)
- p->state = kShortRepNextStates[p->state];
- else
- {
- LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN,
- posState, !p->fastMode, p->ProbPrices);
- p->state = kRepNextStates[p->state];
- }
- }
- else
- {
- uint32_t posSlot;
- RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
- p->state = kMatchNextStates[p->state];
- LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState,
- !p->fastMode, p->ProbPrices);
- pos -= LZMA_NUM_REPS;
- GetPosSlot(pos, posSlot);
- RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)],
- kNumPosSlotBits, posSlot);
-
- if (posSlot >= kStartPosModelIndex)
- {
- uint32_t footerBits = ((posSlot >> 1) - 1);
- uint32_t base = ((2 | (posSlot & 1)) << footerBits);
- uint32_t posReduced = pos - base;
-
- if (posSlot < kEndPosModelIndex)
- RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1,
- footerBits, posReduced);
- else
- {
- RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits,
- footerBits - kNumAlignBits);
- RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits,
- posReduced & kAlignMask);
- p->alignPriceCount++;
- }
- }
- p->reps[3] = p->reps[2];
- p->reps[2] = p->reps[1];
- p->reps[1] = p->reps[0];
- p->reps[0] = pos;
- p->matchPriceCount++;
- }
- }
- p->additionalOffset -= len;
- nowPos32 += len;
- if (p->additionalOffset == 0)
- {
- uint32_t 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 (useLimits)
- {
- if (processed + kNumOpts + 300 >= maxUnpackSize ||
- RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize)
- break;
- }
- else if (processed >= (1 << 15))
- {
- p->nowPos64 += nowPos32 - startPos32;
- return CheckErrors(p);
- }
- }
- }
- p->nowPos64 += nowPos32 - startPos32;
- return Flush(p, nowPos32);
-}
-
-#define kBigHashDicLimit ((uint32_t)1 << 24)
-
-static SRes LzmaEnc_Alloc(CLzmaEnc *p, uint32_t keepWindowSize)
-{
- uint32_t beforeSize = kNumOpts;
- Bool btMode;
- if (!RangeEnc_Alloc(&p->rc))
- return SZ_ERROR_MEM;
- btMode = (p->matchFinderBase.btMode != 0);
-#ifdef COMPRESS_MF_MT
- p->mtMode = (p->multiThread && !p->fastMode && btMode);
-#endif
-
- {
- unsigned lclp = p->lc + p->lp;
- if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp)
- {
- LzmaEnc_FreeLits(p);
- p->litProbs = (CLzmaProb *)malloc((0x300 << lclp) * sizeof(CLzmaProb));
- p->saveState.litProbs = (CLzmaProb *)malloc((0x300 << lclp) * sizeof(CLzmaProb));
- if (p->litProbs == 0 || p->saveState.litProbs == 0)
- {
- LzmaEnc_FreeLits(p);
- return SZ_ERROR_MEM;
- }
- p->lclp = lclp;
- }
- }
-
- p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit);
-
- if (beforeSize + p->dictSize < keepWindowSize)
- beforeSize = keepWindowSize - p->dictSize;
-
-#ifdef COMPRESS_MF_MT
- if (p->mtMode)
- {
- RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes,
- LZMA_MATCH_LEN_MAX));
- p->matchFinderObj = &p->matchFinderMt;
- MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);
- }
- else
-#endif
- {
- if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes,
- LZMA_MATCH_LEN_MAX))
- return SZ_ERROR_MEM;
- p->matchFinderObj = &p->matchFinderBase;
- MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
- }
- return SZ_OK;
-}
-
-void LzmaEnc_Init(CLzmaEnc *p)
-{
- uint32_t i;
- p->state = 0;
- for (i = 0; i < LZMA_NUM_REPS; i++)
- p->reps[i] = 0;
-
- RangeEnc_Init(&p->rc);
-
- for (i = 0; i < kNumStates; i++)
- {
- uint32_t 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;
- }
-
- {
- uint32_t num = 0x300 << (p->lp + p->lc);
- for (i = 0; i < num; i++)
- p->litProbs[i] = kProbInitValue;
- }
-
- {
- for (i = 0; i < kNumLenToPosStates; i++)
- {
- CLzmaProb *probs = p->posSlotEncoder[i];
- uint32_t j;
- for (j = 0; j < (1 << kNumPosSlotBits); j++)
- probs[j] = kProbInitValue;
- }
- }
- {
- for (i = 0; i < kNumFullDistances - kEndPosModelIndex; i++)
- p->posEncoders[i] = kProbInitValue;
- }
-
- LenEnc_Init(&p->lenEnc.p);
- LenEnc_Init(&p->repLenEnc.p);
-
- for (i = 0; i < (1 << kNumAlignBits); i++)
- p->posAlignEncoder[i] = kProbInitValue;
-
- p->optimumEndIndex = 0;
- p->optimumCurrentIndex = 0;
- p->additionalOffset = 0;
-
- p->pbMask = (1 << p->pb) - 1;
- p->lpMask = (1 << p->lp) - 1;
-}
-
-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->ProbPrices);
- LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices);
-}
-
-static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, uint32_t keepWindowSize)
-{
- uint32_t i;
- for (i = 0; i < (uint32_t)kDicLogSizeMaxCompress; i++)
- if (p->dictSize <= ((uint32_t)1 << i))
- break;
- p->distTableSize = i * 2;
-
- p->finished = False;
- p->result = SZ_OK;
- RINOK(LzmaEnc_Alloc(p, keepWindowSize));
- LzmaEnc_Init(p);
- LzmaEnc_InitPrices(p);
- p->nowPos64 = 0;
- return SZ_OK;
-}
-
-static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqInStream *inStream, ISeqOutStream *outStream)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- p->inStream = inStream;
- p->rc.outStream = outStream;
- return LzmaEnc_AllocAndInit(p, 0);
-}
-
-SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, uint32_t keepWindowSize)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- p->inStream = inStream;
- return LzmaEnc_AllocAndInit(p, keepWindowSize);
-}
-
-static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const uint8_t *src, size_t srcLen)
-{
- p->seqBufInStream.funcTable.Read = MyRead;
- p->seqBufInStream.data = src;
- p->seqBufInStream.rem = srcLen;
-}
-
-SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const uint8_t *src, size_t srcLen,
- uint32_t keepWindowSize)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- LzmaEnc_SetInputBuf(p, src, srcLen);
- p->inStream = &p->seqBufInStream.funcTable;
- return LzmaEnc_AllocAndInit(p, keepWindowSize);
-}
-
-void LzmaEnc_Finish(CLzmaEncHandle pp)
-{
-#ifdef COMPRESS_MF_MT
- CLzmaEnc *p = (CLzmaEnc *)pp;
- if (p->mtMode)
- MatchFinderMt_ReleaseStream(&p->matchFinderMt);
-#else
- pp = pp;
-#endif
-}
-
-typedef struct _CSeqOutStreamBuf
-{
- ISeqOutStream funcTable;
- uint8_t *data;
- size_t rem;
- Bool overflow;
-} CSeqOutStreamBuf;
-
-static size_t MyWrite(void *pp, const void *data, size_t size)
-{
- CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp;
- if (p->rem < size)
- {
- size = p->rem;
- p->overflow = True;
- }
- memcpy(p->data, data, size);
- p->rem -= size;
- p->data += size;
- return size;
-}
-
-uint32_t LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
-{
- const CLzmaEnc *p = (CLzmaEnc *)pp;
- return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
-}
-
-const uint8_t *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
-{
- const CLzmaEnc *p = (CLzmaEnc *)pp;
- return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
-}
-
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, uint8_t *dest, size_t *destLen,
- uint32_t desiredPackSize, uint32_t *unpackSize)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- uint64_t nowPos64;
- SRes res;
- CSeqOutStreamBuf outStream;
-
- outStream.funcTable.Write = MyWrite;
- 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.funcTable;
-
- res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize);
-
- *unpackSize = (uint32_t)(p->nowPos64 - nowPos64);
- *destLen -= outStream.rem;
- if (outStream.overflow)
- return SZ_ERROR_OUTPUT_EOF;
-
- return res;
-}
-
-SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,
- ICompressProgress *progress)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- SRes res = SZ_OK;
-
-#ifdef COMPRESS_MF_MT
- Byte allocaDummy[0x300];
- int i = 0;
- for (i = 0; i < 16; i++)
- allocaDummy[i] = (Byte)i;
-#endif
-
- RINOK(LzmaEnc_Prepare(pp, inStream, outStream));
-
- for (;;)
- {
- res = LzmaEnc_CodeOneBlock(p, False, 0, 0);
- if (res != SZ_OK || p->finished != 0)
- break;
- if (progress != 0)
- {
- res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
- if (res != SZ_OK)
- {
- res = SZ_ERROR_PROGRESS;
- break;
- }
- }
- }
- LzmaEnc_Finish(pp);
- return res;
-}
-
-SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, uint8_t *props, size_t *size)
-{
- CLzmaEnc *p = (CLzmaEnc *)pp;
- int i;
- uint32_t dictSize = p->dictSize;
- if (*size < LZMA_PROPS_SIZE)
- return SZ_ERROR_PARAM;
- *size = LZMA_PROPS_SIZE;
- props[0] = (uint8_t)((p->pb * 5 + p->lp) * 9 + p->lc);
-
- for (i = 11; i <= 30; i++)
- {
- if (dictSize <= ((uint32_t)2 << i))
- {
- dictSize = (2 << i);
- break;
- }
- if (dictSize <= ((uint32_t)3 << i))
- {
- dictSize = (3 << i);
- break;
- }
- }
-
- for (i = 0; i < 4; i++)
- props[1 + i] = (uint8_t)(dictSize >> (8 * i));
- return SZ_OK;
-}
-
-SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, uint8_t *dest, size_t *destLen, const uint8_t *src,
- size_t srcLen, int writeEndMark, ICompressProgress *progress)
-{
- SRes res;
- CLzmaEnc *p = (CLzmaEnc *)pp;
-
- CSeqOutStreamBuf outStream;
-
- LzmaEnc_SetInputBuf(p, src, srcLen);
-
- outStream.funcTable.Write = MyWrite;
- outStream.data = dest;
- outStream.rem = *destLen;
- outStream.overflow = False;
-
- p->writeEndMark = writeEndMark;
- res = LzmaEnc_Encode(pp, &outStream.funcTable, &p->seqBufInStream.funcTable, progress);
-
- *destLen -= outStream.rem;
- if (outStream.overflow)
- return SZ_ERROR_OUTPUT_EOF;
- return res;
-}
-
-SRes LzmaEncode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
- const CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize,
- int writeEndMark, ICompressProgress *progress)
-{
- CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create();
- SRes res;
- if (p == 0)
- 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);
- }
-
- LzmaEnc_Destroy(p);
- return res;
-}