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| | |
| | | /* LzmaEnc.c -- LZMA Encoder |
| | | 2023-04-13: 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 "CpuArch.h" |
| | | #include "LzmaEnc.h" |
| | | |
| | | #include "LzFind.h" |
| | | #ifndef Z7_ST |
| | | #include "LzFindMt.h" |
| | | #endif |
| | | |
| | | /* the following LzmaEnc_* declarations is internal LZMA interface for LZMA2 encoder */ |
| | | |
| | | SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle p, ISeqInStreamPtr inStream, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig); |
| | | SRes LzmaEnc_MemPrepare(CLzmaEncHandle p, const Byte *src, SizeT srcLen, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig); |
| | | SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle p, BoolInt reInit, Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize); |
| | | const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle p); |
| | | void LzmaEnc_Finish(CLzmaEncHandle p); |
| | | void LzmaEnc_SaveState(CLzmaEncHandle p); |
| | | void LzmaEnc_RestoreState(CLzmaEncHandle p); |
| | | |
| | | #ifdef SHOW_STAT |
| | | static unsigned g_STAT_OFFSET = 0; |
| | | #endif |
| | | |
| | | /* for good normalization speed we still reserve 256 MB before 4 GB range */ |
| | | #define kLzmaMaxHistorySize ((UInt32)15 << 28) |
| | | |
| | | // #define kNumTopBits 24 |
| | | #define kTopValue ((UInt32)1 << 24) |
| | | |
| | | #define kNumBitModelTotalBits 11 |
| | | #define kBitModelTotal (1 << kNumBitModelTotalBits) |
| | | #define kNumMoveBits 5 |
| | | #define kProbInitValue (kBitModelTotal >> 1) |
| | | |
| | | #define kNumMoveReducingBits 4 |
| | | #define kNumBitPriceShiftBits 4 |
| | | // #define kBitPrice (1 << kNumBitPriceShiftBits) |
| | | |
| | | #define REP_LEN_COUNT 64 |
| | | |
| | | 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->numHashOutBits = 0; |
| | | p->writeEndMark = 0; |
| | | p->affinity = 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 <= 3 ? ((UInt32)1 << (level * 2 + 16)) : (level <= 6 ? ((UInt32)1 << (level + 19)) : (level <= 7 ? ((UInt32)1 << 25) : ((UInt32)1 << 26)))); |
| | | |
| | | if (p->dictSize > p->reduceSize) |
| | | { |
| | | UInt32 v = (UInt32)p->reduceSize; |
| | | const UInt32 kReduceMin = ((UInt32)1 << 12); |
| | | if (v < kReduceMin) |
| | | v = kReduceMin; |
| | | if (p->dictSize > v) |
| | | p->dictSize = v; |
| | | } |
| | | |
| | | 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 = (p->btMode ? 4 : 5); |
| | | if (p->mc == 0) |
| | | p->mc = (16 + ((unsigned)p->fb >> 1)) >> (p->btMode ? 0 : 1); |
| | | |
| | | if (p->numThreads < 0) |
| | | p->numThreads = |
| | | #ifndef Z7_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; |
| | | } |
| | | |
| | | /* |
| | | x86/x64: |
| | | |
| | | BSR: |
| | | IF (SRC == 0) ZF = 1, DEST is undefined; |
| | | AMD : DEST is unchanged; |
| | | IF (SRC != 0) ZF = 0; DEST is index of top non-zero bit |
| | | BSR is slow in some processors |
| | | |
| | | LZCNT: |
| | | IF (SRC == 0) CF = 1, DEST is size_in_bits_of_register(src) (32 or 64) |
| | | IF (SRC != 0) CF = 0, DEST = num_lead_zero_bits |
| | | IF (DEST == 0) ZF = 1; |
| | | |
| | | LZCNT works only in new processors starting from Haswell. |
| | | if LZCNT is not supported by processor, then it's executed as BSR. |
| | | LZCNT can be faster than BSR, if supported. |
| | | */ |
| | | |
| | | // #define LZMA_LOG_BSR |
| | | |
| | | #if defined(MY_CPU_ARM_OR_ARM64) /* || defined(MY_CPU_X86_OR_AMD64) */ |
| | | |
| | | #if (defined(__clang__) && (__clang_major__ >= 6)) || (defined(__GNUC__) && (__GNUC__ >= 6)) |
| | | #define LZMA_LOG_BSR |
| | | #elif defined(_MSC_VER) && (_MSC_VER >= 1300) |
| | | // #if defined(MY_CPU_ARM_OR_ARM64) |
| | | #define LZMA_LOG_BSR |
| | | // #endif |
| | | #endif |
| | | #endif |
| | | |
| | | // #include <intrin.h> |
| | | |
| | | #ifdef LZMA_LOG_BSR |
| | | |
| | | #if defined(__clang__) || defined(__GNUC__) |
| | | |
| | | /* |
| | | C code: : (30 - __builtin_clz(x)) |
| | | gcc9/gcc10 for x64 /x86 : 30 - (bsr(x) xor 31) |
| | | clang10 for x64 : 31 + (bsr(x) xor -32) |
| | | */ |
| | | |
| | | #define MY_clz(x) ((unsigned)__builtin_clz(x)) |
| | | // __lzcnt32 |
| | | // __builtin_ia32_lzcnt_u32 |
| | | |
| | | #else // #if defined(_MSC_VER) |
| | | |
| | | #ifdef MY_CPU_ARM_OR_ARM64 |
| | | |
| | | #define MY_clz _CountLeadingZeros |
| | | |
| | | #else // if defined(MY_CPU_X86_OR_AMD64) |
| | | |
| | | // #define MY_clz __lzcnt // we can use lzcnt (unsupported by old CPU) |
| | | // _BitScanReverse code is not optimal for some MSVC compilers |
| | | #define BSR2_RET(pos, res) \ |
| | | { \ |
| | | unsigned long zz; \ |
| | | _BitScanReverse(&zz, (pos)); \ |
| | | zz--; \ |
| | | res = (zz + zz) + (pos >> zz); \ |
| | | } |
| | | |
| | | #endif // MY_CPU_X86_OR_AMD64 |
| | | |
| | | #endif // _MSC_VER |
| | | |
| | | #ifndef BSR2_RET |
| | | |
| | | #define BSR2_RET(pos, res) \ |
| | | { \ |
| | | unsigned zz = 30 - MY_clz(pos); \ |
| | | res = (zz + zz) + (pos >> zz); \ |
| | | } |
| | | |
| | | #endif |
| | | |
| | | unsigned GetPosSlot1(UInt32 pos); |
| | | 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 // ! LZMA_LOG_BSR |
| | | |
| | | #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 // LZMA_LOG_BSR |
| | | |
| | | #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; |
| | | |
| | | // 18.06 |
| | | #define kNumOpts (1 << 11) |
| | | #define kPackReserve (kNumOpts * 8) |
| | | // #define kNumOpts (1 << 12) |
| | | // #define kPackReserve (1 + kNumOpts * 2) |
| | | |
| | | #define kNumLenToPosStates 4 |
| | | #define kNumPosSlotBits 6 |
| | | // #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 Z7_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; |
| | | UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal]; |
| | | // UInt32 prices1[LZMA_NUM_PB_STATES_MAX][kLenNumLowSymbols * 2]; |
| | | // UInt32 prices2[kLenNumSymbolsTotal]; |
| | | } CLenPriceEnc; |
| | | |
| | | #define GET_PRICE_LEN(p, posState, len) ((p)->prices[posState][(size_t)(len)-LZMA_MATCH_LEN_MIN]) |
| | | |
| | | /* |
| | | #define GET_PRICE_LEN(p, posState, len) \ |
| | | ((p)->prices2[(size_t)(len) - 2] + ((p)->prices1[posState][((len) - 2) & (kLenNumLowSymbols * 2 - 1)] & (((len) - 2 - kLenNumLowSymbols * 2) >> 9))) |
| | | */ |
| | | |
| | | typedef struct |
| | | { |
| | | UInt32 range; |
| | | unsigned cache; |
| | | UInt64 low; |
| | | UInt64 cacheSize; |
| | | Byte *buf; |
| | | Byte *bufLim; |
| | | Byte *bufBase; |
| | | ISeqOutStreamPtr 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; |
| | | |
| | | struct CLzmaEnc |
| | | { |
| | | void *matchFinderObj; |
| | | IMatchFinder2 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; |
| | | |
| | | BoolInt fastMode; |
| | | BoolInt writeEndMark; |
| | | BoolInt finished; |
| | | BoolInt multiThread; |
| | | BoolInt needInit; |
| | | // BoolInt _maxMode; |
| | | |
| | | UInt64 nowPos64; |
| | | |
| | | unsigned matchPriceCount; |
| | | // unsigned alignPriceCount; |
| | | int repLenEncCounter; |
| | | |
| | | unsigned distTableSize; |
| | | |
| | | UInt32 dictSize; |
| | | SRes result; |
| | | |
| | | #ifndef Z7_ST |
| | | BoolInt mtMode; |
| | | // begin of CMatchFinderMt is used in LZ thread |
| | | CMatchFinderMt matchFinderMt; |
| | | // end of CMatchFinderMt is used in BT and HASH threads |
| | | // #else |
| | | // CMatchFinder matchFinderBase; |
| | | #endif |
| | | CMatchFinder matchFinderBase; |
| | | |
| | | // we suppose that we have 8-bytes alignment after CMatchFinder |
| | | |
| | | #ifndef Z7_ST |
| | | Byte pad[128]; |
| | | #endif |
| | | |
| | | // LZ thread |
| | | CProbPrice ProbPrices[kBitModelTotal >> kNumMoveReducingBits]; |
| | | |
| | | // we want {len , dist} pairs to be 8-bytes aligned in matches array |
| | | UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2]; |
| | | |
| | | // we want 8-bytes alignment here |
| | | 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; |
| | | |
| | | // BoolInt mf_Failure; |
| | | #ifndef Z7_ST |
| | | Byte pad2[128]; |
| | | #endif |
| | | }; |
| | | |
| | | #define MFB (p->matchFinderBase) |
| | | /* |
| | | #ifndef Z7_ST |
| | | #define MFB (p->matchFinderMt.MatchFinder) |
| | | #endif |
| | | */ |
| | | |
| | | // #define GET_CLzmaEnc_p CLzmaEnc *p = (CLzmaEnc*)(void *)p; |
| | | // #define GET_const_CLzmaEnc_p const CLzmaEnc *p = (const CLzmaEnc*)(const void *)p; |
| | | |
| | | #define COPY_ARR(dest, src, arr) memcpy((dest)->arr, (src)->arr, sizeof((src)->arr)); |
| | | |
| | | #define COPY_LZMA_ENC_STATE(d, s, p) \ |
| | | (d)->state = (s)->state; \ |
| | | COPY_ARR(d, s, reps) \ |
| | | COPY_ARR(d, s, posAlignEncoder) \ |
| | | COPY_ARR(d, s, isRep) \ |
| | | COPY_ARR(d, s, isRepG0) \ |
| | | COPY_ARR(d, s, isRepG1) \ |
| | | COPY_ARR(d, s, isRepG2) \ |
| | | COPY_ARR(d, s, isMatch) \ |
| | | COPY_ARR(d, s, isRep0Long) \ |
| | | COPY_ARR(d, s, posSlotEncoder) \ |
| | | COPY_ARR(d, s, posEncoders) \ |
| | | (d)->lenProbs = (s)->lenProbs; \ |
| | | (d)->repLenProbs = (s)->repLenProbs; \ |
| | | memcpy((d)->litProbs, (s)->litProbs, ((UInt32)0x300 << (p)->lclp) * sizeof(CLzmaProb)); |
| | | |
| | | void LzmaEnc_SaveState(CLzmaEncHandle p) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | CSaveState *v = &p->saveState; |
| | | COPY_LZMA_ENC_STATE(v, p, p) |
| | | } |
| | | |
| | | void LzmaEnc_RestoreState(CLzmaEncHandle p) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | const CSaveState *v = &p->saveState; |
| | | COPY_LZMA_ENC_STATE(p, v, p) |
| | | } |
| | | |
| | | Z7_NO_INLINE |
| | | SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props2) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | CLzmaEncProps props = *props2; |
| | | LzmaEncProps_Normalize(&props); |
| | | |
| | | if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX) |
| | | return SZ_ERROR_PARAM; |
| | | |
| | | if (props.dictSize > kLzmaMaxHistorySize) |
| | | props.dictSize = kLzmaMaxHistorySize; |
| | | |
| | | #ifndef LZMA_LOG_BSR |
| | | { |
| | | const UInt64 dict64 = props.dictSize; |
| | | if (dict64 > ((UInt64)1 << kDicLogSizeMaxCompress)) |
| | | return SZ_ERROR_PARAM; |
| | | } |
| | | #endif |
| | | |
| | | p->dictSize = props.dictSize; |
| | | { |
| | | unsigned fb = (unsigned)props.fb; |
| | | if (fb < 5) |
| | | fb = 5; |
| | | if (fb > LZMA_MATCH_LEN_MAX) |
| | | fb = LZMA_MATCH_LEN_MAX; |
| | | p->numFastBytes = fb; |
| | | } |
| | | p->lc = (unsigned)props.lc; |
| | | p->lp = (unsigned)props.lp; |
| | | p->pb = (unsigned)props.pb; |
| | | p->fastMode = (props.algo == 0); |
| | | // p->_maxMode = True; |
| | | MFB.btMode = (Byte)(props.btMode ? 1 : 0); |
| | | // MFB.btMode = (Byte)(props.btMode); |
| | | { |
| | | unsigned numHashBytes = 4; |
| | | if (props.btMode) |
| | | { |
| | | if (props.numHashBytes < 2) |
| | | numHashBytes = 2; |
| | | else if (props.numHashBytes < 4) |
| | | numHashBytes = (unsigned)props.numHashBytes; |
| | | } |
| | | if (props.numHashBytes >= 5) |
| | | numHashBytes = 5; |
| | | |
| | | MFB.numHashBytes = numHashBytes; |
| | | // MFB.numHashBytes_Min = 2; |
| | | MFB.numHashOutBits = (Byte)props.numHashOutBits; |
| | | } |
| | | |
| | | MFB.cutValue = props.mc; |
| | | |
| | | p->writeEndMark = (BoolInt)props.writeEndMark; |
| | | |
| | | #ifndef Z7_ST |
| | | /* |
| | | if (newMultiThread != _multiThread) |
| | | { |
| | | ReleaseMatchFinder(); |
| | | _multiThread = newMultiThread; |
| | | } |
| | | */ |
| | | p->multiThread = (props.numThreads > 1); |
| | | p->matchFinderMt.btSync.affinity = p->matchFinderMt.hashSync.affinity = props.affinity; |
| | | #endif |
| | | |
| | | return SZ_OK; |
| | | } |
| | | |
| | | void LzmaEnc_SetDataSize(CLzmaEncHandle p, UInt64 expectedDataSiize) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | MFB.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 + (size_t)((p)->buf - (p)->bufBase) + (p)->cacheSize) |
| | | #define RangeEnc_GetProcessed_sizet(p) ((size_t)(p)->processed + (size_t)((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 = NULL; |
| | | } |
| | | |
| | | static void RangeEnc_Init(CRangeEnc *p) |
| | | { |
| | | p->range = 0xFFFFFFFF; |
| | | p->cache = 0; |
| | | p->low = 0; |
| | | p->cacheSize = 0; |
| | | |
| | | p->buf = p->bufBase; |
| | | |
| | | p->processed = 0; |
| | | p->res = SZ_OK; |
| | | } |
| | | |
| | | Z7_NO_INLINE static void RangeEnc_FlushStream(CRangeEnc *p) |
| | | { |
| | | const size_t num = (size_t)(p->buf - p->bufBase); |
| | | if (p->res == SZ_OK) |
| | | { |
| | | if (num != ISeqOutStream_Write(p->outStream, p->bufBase, num)) |
| | | p->res = SZ_ERROR_WRITE; |
| | | } |
| | | p->processed += num; |
| | | p->buf = p->bufBase; |
| | | } |
| | | |
| | | Z7_NO_INLINE static void Z7_FASTCALL 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 Z7_LZMA_ENC_USE_BRANCH |
| | | |
| | | #ifdef Z7_LZMA_ENC_USE_BRANCH |
| | | |
| | | #define RC_BIT(p, prob, bit) \ |
| | | { \ |
| | | RC_BIT_PRE(p, prob) \ |
| | | if (bit == 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, bit) \ |
| | | { \ |
| | | UInt32 mask; \ |
| | | RC_BIT_PRE(p, prob) \ |
| | | mask = 0 - (UInt32)bit; \ |
| | | range &= mask; \ |
| | | mask &= newBound; \ |
| | | range -= mask; \ |
| | | (p)->low += mask; \ |
| | | mask = (UInt32)bit - 1; \ |
| | | range += newBound & mask; \ |
| | | mask &= (kBitModelTotal - ((1 << kNumMoveBits) - 1)); \ |
| | | mask += ((1 << kNumMoveBits) - 1); \ |
| | | ttt += (UInt32)((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 sym) |
| | | { |
| | | UInt32 range = p->range; |
| | | sym |= 0x100; |
| | | do |
| | | { |
| | | UInt32 ttt, newBound; |
| | | // RangeEnc_EncodeBit(p, probs + (sym >> 8), (sym >> 7) & 1); |
| | | CLzmaProb *prob = probs + (sym >> 8); |
| | | UInt32 bit = (sym >> 7) & 1; |
| | | sym <<= 1; |
| | | RC_BIT(p, prob, bit) |
| | | } while (sym < 0x10000); |
| | | p->range = range; |
| | | } |
| | | |
| | | static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 sym, UInt32 matchByte) |
| | | { |
| | | UInt32 range = p->range; |
| | | UInt32 offs = 0x100; |
| | | sym |= 0x100; |
| | | do |
| | | { |
| | | UInt32 ttt, newBound; |
| | | CLzmaProb *prob; |
| | | UInt32 bit; |
| | | matchByte <<= 1; |
| | | // RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (sym >> 8)), (sym >> 7) & 1); |
| | | prob = probs + (offs + (matchByte & offs) + (sym >> 8)); |
| | | bit = (sym >> 7) & 1; |
| | | sym <<= 1; |
| | | offs &= ~(matchByte ^ sym); |
| | | RC_BIT(p, prob, bit) |
| | | } while (sym < 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)(((unsigned)kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount); |
| | | // printf("\n%3d: %5d", i, ProbPrices[i]); |
| | | } |
| | | } |
| | | |
| | | #define GET_PRICE(prob, bit) p->ProbPrices[((prob) ^ (unsigned)(((-(int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits] |
| | | |
| | | #define GET_PRICEa(prob, bit) ProbPrices[((prob) ^ (unsigned)((-((int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits] |
| | | |
| | | #define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits] |
| | | #define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits] |
| | | |
| | | #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 sym, const CProbPrice *ProbPrices) |
| | | { |
| | | UInt32 price = 0; |
| | | sym |= 0x100; |
| | | do |
| | | { |
| | | unsigned bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | } while (sym >= 2); |
| | | return price; |
| | | } |
| | | |
| | | static UInt32 LitEnc_Matched_GetPrice(const CLzmaProb *probs, UInt32 sym, UInt32 matchByte, const CProbPrice *ProbPrices) |
| | | { |
| | | UInt32 price = 0; |
| | | UInt32 offs = 0x100; |
| | | sym |= 0x100; |
| | | do |
| | | { |
| | | matchByte <<= 1; |
| | | price += GET_PRICEa(probs[offs + (matchByte & offs) + (sym >> 8)], (sym >> 7) & 1); |
| | | sym <<= 1; |
| | | offs &= ~(matchByte ^ sym); |
| | | } while (sym < 0x10000); |
| | | return price; |
| | | } |
| | | |
| | | static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, unsigned numBits, unsigned sym) |
| | | { |
| | | UInt32 range = rc->range; |
| | | unsigned m = 1; |
| | | do |
| | | { |
| | | UInt32 ttt, newBound; |
| | | unsigned bit = sym & 1; |
| | | // RangeEnc_EncodeBit(rc, probs + m, bit); |
| | | sym >>= 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 sym, unsigned posState) |
| | | { |
| | | UInt32 range, ttt, newBound; |
| | | CLzmaProb *probs = p->low; |
| | | range = rc->range; |
| | | RC_BIT_PRE(rc, probs) |
| | | if (sym >= kLenNumLowSymbols) |
| | | { |
| | | RC_BIT_1(rc, probs) |
| | | probs += kLenNumLowSymbols; |
| | | RC_BIT_PRE(rc, probs) |
| | | if (sym >= kLenNumLowSymbols * 2) |
| | | { |
| | | RC_BIT_1(rc, probs) |
| | | rc->range = range; |
| | | // RcTree_Encode(rc, p->high, kLenNumHighBits, sym - kLenNumLowSymbols * 2); |
| | | LitEnc_Encode(rc, p->high, sym - kLenNumLowSymbols * 2); |
| | | return; |
| | | } |
| | | sym -= kLenNumLowSymbols; |
| | | } |
| | | |
| | | // RcTree_Encode(rc, probs + (posState << kLenNumLowBits), kLenNumLowBits, sym); |
| | | { |
| | | unsigned m; |
| | | unsigned bit; |
| | | RC_BIT_0(rc, probs) |
| | | probs += (posState << (1 + kLenNumLowBits)); |
| | | bit = (sym >> 2); |
| | | RC_BIT(rc, probs + 1, bit) m = (1 << 1) + bit; |
| | | bit = (sym >> 1) & 1; |
| | | RC_BIT(rc, probs + m, bit) m = (m << 1) + bit; |
| | | bit = sym & 1; |
| | | RC_BIT(rc, probs + m, bit) |
| | | rc->range = range; |
| | | } |
| | | } |
| | | |
| | | 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); |
| | | } |
| | | } |
| | | |
| | | Z7_NO_INLINE static void Z7_FASTCALL LenPriceEnc_UpdateTables(CLenPriceEnc *p, unsigned numPosStates, const CLenEnc *enc, const CProbPrice *ProbPrices) |
| | | { |
| | | UInt32 b; |
| | | |
| | | { |
| | | unsigned prob = enc->low[0]; |
| | | UInt32 a, c; |
| | | unsigned posState; |
| | | b = GET_PRICEa_1(prob); |
| | | a = GET_PRICEa_0(prob); |
| | | c = b + GET_PRICEa_0(enc->low[kLenNumLowSymbols]); |
| | | for (posState = 0; posState < numPosStates; posState++) |
| | | { |
| | | UInt32 *prices = p->prices[posState]; |
| | | const CLzmaProb *probs = enc->low + (posState << (1 + kLenNumLowBits)); |
| | | SetPrices_3(probs, a, prices, ProbPrices); |
| | | SetPrices_3(probs + kLenNumLowSymbols, c, prices + kLenNumLowSymbols, ProbPrices); |
| | | } |
| | | } |
| | | |
| | | /* |
| | | { |
| | | unsigned i; |
| | | UInt32 b; |
| | | a = GET_PRICEa_0(enc->low[0]); |
| | | for (i = 0; i < kLenNumLowSymbols; i++) |
| | | p->prices2[i] = a; |
| | | a = GET_PRICEa_1(enc->low[0]); |
| | | b = a + GET_PRICEa_0(enc->low[kLenNumLowSymbols]); |
| | | for (i = kLenNumLowSymbols; i < kLenNumLowSymbols * 2; i++) |
| | | p->prices2[i] = b; |
| | | a += GET_PRICEa_1(enc->low[kLenNumLowSymbols]); |
| | | } |
| | | */ |
| | | |
| | | // p->counter = numSymbols; |
| | | // p->counter = 64; |
| | | |
| | | { |
| | | unsigned i = p->tableSize; |
| | | |
| | | if (i > kLenNumLowSymbols * 2) |
| | | { |
| | | const CLzmaProb *probs = enc->high; |
| | | UInt32 *prices = p->prices[0] + kLenNumLowSymbols * 2; |
| | | i -= kLenNumLowSymbols * 2 - 1; |
| | | i >>= 1; |
| | | b += GET_PRICEa_1(enc->low[kLenNumLowSymbols]); |
| | | do |
| | | { |
| | | /* |
| | | p->prices2[i] = a + |
| | | // RcTree_GetPrice(enc->high, kLenNumHighBits, i - kLenNumLowSymbols * 2, ProbPrices); |
| | | LitEnc_GetPrice(probs, i - kLenNumLowSymbols * 2, ProbPrices); |
| | | */ |
| | | // UInt32 price = a + RcTree_GetPrice(probs, kLenNumHighBits - 1, sym, ProbPrices); |
| | | unsigned sym = --i + (1 << (kLenNumHighBits - 1)); |
| | | UInt32 price = b; |
| | | do |
| | | { |
| | | unsigned bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | } while (sym >= 2); |
| | | |
| | | { |
| | | unsigned prob = probs[(size_t)i + (1 << (kLenNumHighBits - 1))]; |
| | | prices[(size_t)i * 2] = price + GET_PRICEa_0(prob); |
| | | prices[(size_t)i * 2 + 1] = price + GET_PRICEa_1(prob); |
| | | } |
| | | } while (i); |
| | | |
| | | { |
| | | unsigned posState; |
| | | size_t num = (p->tableSize - kLenNumLowSymbols * 2) * sizeof(p->prices[0][0]); |
| | | for (posState = 1; posState < numPosStates; posState++) |
| | | memcpy(p->prices[posState] + kLenNumLowSymbols * 2, p->prices[0] + kLenNumLowSymbols * 2, num); |
| | | } |
| | | } |
| | | } |
| | | } |
| | | |
| | | /* |
| | | #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, (UInt32)(num)); \ |
| | | } |
| | | |
| | | static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes) |
| | | { |
| | | unsigned numPairs; |
| | | |
| | | p->additionalOffset++; |
| | | p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); |
| | | { |
| | | const UInt32 *d = p->matchFinder.GetMatches(p->matchFinderObj, p->matches); |
| | | // if (!d) { p->mf_Failure = True; *numPairsRes = 0; return 0; } |
| | | numPairs = (unsigned)(d - 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; |
| | | { |
| | | const 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; |
| | | const ptrdiff_t dif = (ptrdiff_t)-1 - (ptrdiff_t)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]) |
| | | |
| | | Z7_FORCE_INLINE |
| | | 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; |
| | | unsigned len = (unsigned)p->opt[cur].len; |
| | | unsigned extra = (unsigned)p->opt[cur].extra; |
| | | cur -= len; |
| | | |
| | | if (extra) |
| | | { |
| | | wr--; |
| | | p->opt[wr].len = (UInt32)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 = (UInt32)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 (len == LZMA_MATCH_LEN_MAX) // 21.03 : optimization |
| | | break; |
| | | } |
| | | |
| | | if (repLens[repMaxIndex] >= p->numFastBytes) |
| | | { |
| | | unsigned len; |
| | | p->backRes = (UInt32)repMaxIndex; |
| | | len = repLens[repMaxIndex]; |
| | | MOVE_POS(p, len - 1) |
| | | return len; |
| | | } |
| | | |
| | | matches = p->matches; |
| | | #define MATCHES matches |
| | | // #define 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]); |
| | | |
| | | last = repLens[repMaxIndex]; |
| | | if (last <= mainLen) |
| | | last = mainLen; |
| | | |
| | | if (last < 2 && curByte != matchByte) |
| | | { |
| | | 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]); |
| | | |
| | | // 18.06 |
| | | if (matchByte == curByte && repLens[0] == 0) |
| | | { |
| | | 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]) |
| | | } |
| | | 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]; |
| | | |
| | | // ---------- 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 + GET_PRICE_LEN(&p->repLenEnc, posState, repLen); |
| | | COptimal *opt = &p->opt[repLen]; |
| | | if (price2 < opt->price) |
| | | { |
| | | opt->price = price2; |
| | | opt->len = (UInt32)repLen; |
| | | opt->dist = (UInt32)i; |
| | | opt->extra = 0; |
| | | } |
| | | } while (--repLen >= 2); |
| | | } |
| | | |
| | | // ---------- MATCH ---------- |
| | | { |
| | | unsigned len = repLens[0] + 1; |
| | | if (len <= mainLen) |
| | | { |
| | | unsigned offs = 0; |
| | | UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]); |
| | | |
| | | if (len < 2) |
| | | len = 2; |
| | | else |
| | | while (len > MATCHES[offs]) |
| | | offs += 2; |
| | | |
| | | for (;; len++) |
| | | { |
| | | COptimal *opt; |
| | | UInt32 dist = MATCHES[(size_t)offs + 1]; |
| | | UInt32 price = normalMatchPrice + GET_PRICE_LEN(&p->lenEnc, posState, len); |
| | | unsigned lenToPosState = GetLenToPosState(len); |
| | | |
| | | if (dist < kNumFullDistances) |
| | | price += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)]; |
| | | else |
| | | { |
| | | unsigned slot; |
| | | GetPosSlot2(dist, slot) price += p->alignPrices[dist & kAlignMask]; |
| | | price += p->posSlotPrices[lenToPosState][slot]; |
| | | } |
| | | |
| | | opt = &p->opt[len]; |
| | | |
| | | if (price < opt->price) |
| | | { |
| | | opt->price = price; |
| | | opt->len = (UInt32)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 (;;) |
| | | { |
| | | unsigned numAvail; |
| | | UInt32 numAvailFull; |
| | | unsigned newLen, numPairs, prev, state, posState, startLen; |
| | | UInt32 litPrice, matchPrice, repMatchPrice; |
| | | BoolInt nextIsLit; |
| | | Byte curByte, matchByte; |
| | | const Byte *data; |
| | | COptimal *curOpt, *nextOpt; |
| | | |
| | | if (++cur == last) |
| | | break; |
| | | |
| | | // 18.06 |
| | | if (cur >= kNumOpts - 64) |
| | | { |
| | | unsigned j, best; |
| | | UInt32 price = p->opt[cur].price; |
| | | best = cur; |
| | | for (j = cur + 1; j <= last; j++) |
| | | { |
| | | UInt32 price2 = p->opt[j].price; |
| | | if (price >= price2) |
| | | { |
| | | price = price2; |
| | | best = j; |
| | | } |
| | | } |
| | | { |
| | | unsigned delta = best - cur; |
| | | if (delta != 0) |
| | | { |
| | | MOVE_POS(p, delta) |
| | | } |
| | | } |
| | | cur = best; |
| | | break; |
| | | } |
| | | |
| | | newLen = ReadMatchDistances(p, &numPairs); |
| | | |
| | | if (newLen >= p->numFastBytes) |
| | | { |
| | | p->numPairs = numPairs; |
| | | p->longestMatchLen = newLen; |
| | | break; |
| | | } |
| | | |
| | | curOpt = &p->opt[cur]; |
| | | |
| | | position++; |
| | | |
| | | // we need that check here, if skip_items in p->opt are possible |
| | | /* |
| | | if (curOpt->price >= kInfinityPrice) |
| | | continue; |
| | | */ |
| | | |
| | | prev = cur - curOpt->len; |
| | | |
| | | if (curOpt->len == 1) |
| | | { |
| | | state = (unsigned)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 -= (unsigned)curOpt->extra; |
| | | state = kState_RepAfterLit; |
| | | if (curOpt->extra == 1) |
| | | state = (dist < LZMA_NUM_REPS ? kState_RepAfterLit : kState_MatchAfterLit); |
| | | } |
| | | else |
| | | { |
| | | state = (unsigned)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]); |
| | | |
| | | posState = (position & p->pbMask); |
| | | |
| | | /* |
| | | The order of Price checks: |
| | | < LIT |
| | | <= SHORT_REP |
| | | < LIT : REP_0 |
| | | < REP [ : LIT : REP_0 ] |
| | | < MATCH [ : LIT : REP_0 ] |
| | | */ |
| | | |
| | | { |
| | | UInt32 curPrice = curOpt->price; |
| | | unsigned prob = p->isMatch[state][posState]; |
| | | matchPrice = curPrice + GET_PRICE_1(prob); |
| | | litPrice = curPrice + GET_PRICE_0(prob); |
| | | } |
| | | |
| | | nextOpt = &p->opt[(size_t)cur + 1]; |
| | | nextIsLit = False; |
| | | |
| | | // here we can allow skip_items in p->opt, if we don't check (nextOpt->price < kInfinityPrice) |
| | | // 18.new.06 |
| | | if ((nextOpt->price < kInfinityPrice |
| | | // && !IsLitState(state) |
| | | && matchByte == curByte) || |
| | | litPrice > nextOpt->price) |
| | | litPrice = 0; |
| | | else |
| | | { |
| | | const CLzmaProb *probs = LIT_PROBS(position, *(data - 1)); |
| | | litPrice += |
| | | (!IsLitState(state) ? 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; |
| | | } |
| | | } |
| | | |
| | | repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]); |
| | | |
| | | numAvailFull = p->numAvail; |
| | | { |
| | | unsigned temp = kNumOpts - 1 - cur; |
| | | if (numAvailFull > temp) |
| | | numAvailFull = (UInt32)temp; |
| | | } |
| | | |
| | | // 18.06 |
| | | // ---------- SHORT_REP ---------- |
| | | if (IsLitState(state)) // 18.new |
| | | if (matchByte == curByte) |
| | | if (repMatchPrice < nextOpt->price) // 18.new |
| | | // if (numAvailFull < 2 || data[1] != *(data - reps[0] + 1)) |
| | | if ( |
| | | // nextOpt->price >= kInfinityPrice || |
| | | nextOpt->len < 2 // we can check nextOpt->len, if skip items are not allowed in p->opt |
| | | || (nextOpt->dist != 0 |
| | | // && nextOpt->extra <= 1 // 17.old |
| | | )) |
| | | { |
| | | 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; |
| | | } |
| | | } |
| | | |
| | | if (numAvailFull < 2) |
| | | continue; |
| | | numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes); |
| | | |
| | | // numAvail <= p->numFastBytes |
| | | |
| | | // ---------- LIT : REP_0 ---------- |
| | | |
| | | if (!nextIsLit && litPrice != 0 // 18.new |
| | | && 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; |
| | | |
| | | if (last < offset) |
| | | last = offset; |
| | | |
| | | // do |
| | | { |
| | | UInt32 price2; |
| | | COptimal *opt; |
| | | len--; |
| | | // price2 = price + GetPrice_Len_Rep_0(p, len, state2, posState2); |
| | | price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len); |
| | | |
| | | opt = &p->opt[offset]; |
| | | // offset--; |
| | | if (price2 < opt->price) |
| | | { |
| | | opt->price = price2; |
| | | opt->len = (UInt32)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 |
| | | |
| | | { |
| | | unsigned offset = cur + len; |
| | | if (last < offset) |
| | | last = offset; |
| | | } |
| | | { |
| | | unsigned len2 = len; |
| | | price = repMatchPrice + GetPrice_PureRep(p, repIndex, state, posState); |
| | | do |
| | | { |
| | | UInt32 price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState, len2); |
| | | COptimal *opt = &p->opt[cur + len2]; |
| | | if (price2 < opt->price) |
| | | { |
| | | opt->price = price2; |
| | | opt->len = (UInt32)len2; |
| | | opt->dist = (UInt32)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; |
| | | |
| | | len2 += 2; |
| | | if (len2 <= limit) |
| | | if (data[len2 - 2] == data2[len2 - 2]) |
| | | if (data[len2 - 1] == data2[len2 - 1]) |
| | | { |
| | | unsigned state2 = kRepNextStates[state]; |
| | | unsigned posState2 = (position + len) & p->pbMask; |
| | | price += GET_PRICE_LEN(&p->repLenEnc, posState, len) + GET_PRICE_0(p->isMatch[state2][posState2]) + |
| | | LitEnc_Matched_GetPrice(LIT_PROBS(position + len, data[(size_t)len - 1]), data[len], data2[len], p->ProbPrices); |
| | | |
| | | // state2 = kLiteralNextStates[state2]; |
| | | state2 = kState_LitAfterRep; |
| | | posState2 = (posState2 + 1) & p->pbMask; |
| | | |
| | | price += GetPrice_Rep_0(p, state2, posState2); |
| | | |
| | | for (; len2 < limit && data[len2] == data2[len2]; len2++) |
| | | { |
| | | } |
| | | |
| | | len2 -= len; |
| | | // if (len2 >= 3) |
| | | { |
| | | { |
| | | unsigned offset = cur + len + len2; |
| | | |
| | | if (last < offset) |
| | | last = offset; |
| | | // do |
| | | { |
| | | UInt32 price2; |
| | | COptimal *opt; |
| | | len2--; |
| | | // price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2); |
| | | price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2); |
| | | |
| | | opt = &p->opt[offset]; |
| | | // offset--; |
| | | if (price2 < opt->price) |
| | | { |
| | | opt->price = price2; |
| | | opt->len = (UInt32)len2; |
| | | opt->extra = (CExtra)(len + 1); |
| | | opt->dist = (UInt32)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] = (UInt32)newLen; |
| | | numPairs += 2; |
| | | } |
| | | |
| | | // startLen = 2; /* speed optimization */ |
| | | |
| | | if (newLen >= startLen) |
| | | { |
| | | UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]); |
| | | UInt32 dist; |
| | | unsigned offs, posSlot, len; |
| | | |
| | | { |
| | | unsigned offset = cur + newLen; |
| | | if (last < offset) |
| | | last = offset; |
| | | } |
| | | |
| | | 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 + GET_PRICE_LEN(&p->lenEnc, posState, len); |
| | | { |
| | | COptimal *opt; |
| | | unsigned lenNorm = len - 2; |
| | | lenNorm = GetLenToPosState2(lenNorm); |
| | | if (dist < kNumFullDistances) |
| | | price += p->distancesPrices[lenNorm][dist & (kNumFullDistances - 1)]; |
| | | else |
| | | price += p->posSlotPrices[lenNorm][posSlot] + p->alignPrices[dist & kAlignMask]; |
| | | |
| | | opt = &p->opt[cur + len]; |
| | | if (price < opt->price) |
| | | { |
| | | opt->price = price; |
| | | opt->len = (UInt32)len; |
| | | opt->dist = dist + LZMA_NUM_REPS; |
| | | opt->extra = 0; |
| | | } |
| | | } |
| | | |
| | | if (len == MATCHES[offs]) |
| | | { |
| | | // if (p->_maxMode) { |
| | | // MATCH : LIT : REP_0 |
| | | |
| | | const Byte *data2 = data - dist - 1; |
| | | unsigned len2 = len + 1; |
| | | unsigned limit = len2 + p->numFastBytes; |
| | | if (limit > numAvailFull) |
| | | limit = numAvailFull; |
| | | |
| | | len2 += 2; |
| | | if (len2 <= limit) |
| | | if (data[len2 - 2] == data2[len2 - 2]) |
| | | if (data[len2 - 1] == data2[len2 - 1]) |
| | | { |
| | | for (; len2 < limit && data[len2] == data2[len2]; len2++) |
| | | { |
| | | } |
| | | |
| | | len2 -= len; |
| | | |
| | | // if (len2 >= 3) |
| | | { |
| | | 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; |
| | | |
| | | if (last < offset) |
| | | last = offset; |
| | | // do |
| | | { |
| | | UInt32 price2; |
| | | COptimal *opt; |
| | | len2--; |
| | | // price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2); |
| | | price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2); |
| | | opt = &p->opt[offset]; |
| | | // offset--; |
| | | if (price2 < opt->price) |
| | | { |
| | | opt->price = price2; |
| | | opt->len = (UInt32)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) |
| | | } |
| | | } |
| | | } |
| | | } |
| | | |
| | | do |
| | | p->opt[last].price = kInfinityPrice; |
| | | while (--last); |
| | | |
| | | return Backward(p, cur); |
| | | } |
| | | |
| | | #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 (mainLen < 2 && p->state == 0) return 1; // 18.06.notused |
| | | if (numAvail > LZMA_MATCH_LEN_MAX) |
| | | numAvail = LZMA_MATCH_LEN_MAX; |
| | | data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; |
| | | 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 = (UInt32)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 = (UInt32)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; |
| | | |
| | | #ifndef Z7_ST |
| | | if ( |
| | | // p->mf_Failure || |
| | | (p->mtMode && ( // p->matchFinderMt.failure_LZ_LZ || |
| | | p->matchFinderMt.failure_LZ_BT))) |
| | | { |
| | | p->result = MY_HRES_ERROR_INTERNAL_ERROR; |
| | | // printf("\nCheckErrors p->matchFinderMt.failureLZ\n"); |
| | | } |
| | | #endif |
| | | |
| | | if (MFB.result != SZ_OK) |
| | | p->result = SZ_ERROR_READ; |
| | | |
| | | if (p->result != SZ_OK) |
| | | p->finished = True; |
| | | return p->result; |
| | | } |
| | | |
| | | Z7_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); |
| | | } |
| | | |
| | | Z7_NO_INLINE 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 sym = i; |
| | | unsigned m = 1; |
| | | unsigned bit; |
| | | UInt32 prob; |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[m], bit); |
| | | m = (m << 1) + bit; |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[m], bit); |
| | | m = (m << 1) + bit; |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[m], bit); |
| | | m = (m << 1) + bit; |
| | | prob = probs[m]; |
| | | p->alignPrices[i] = price + GET_PRICEa_0(prob); |
| | | p->alignPrices[i + 8] = price + GET_PRICEa_1(prob); |
| | | // p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices); |
| | | } |
| | | } |
| | | |
| | | Z7_NO_INLINE static void FillDistancesPrices(CLzmaEnc *p) |
| | | { |
| | | // int y; for (y = 0; y < 100; y++) { |
| | | |
| | | UInt32 tempPrices[kNumFullDistances]; |
| | | unsigned i, lps; |
| | | |
| | | const CProbPrice *ProbPrices = p->ProbPrices; |
| | | p->matchPriceCount = 0; |
| | | |
| | | for (i = kStartPosModelIndex / 2; i < kNumFullDistances / 2; i++) |
| | | { |
| | | unsigned posSlot = GetPosSlot1(i); |
| | | unsigned footerBits = (posSlot >> 1) - 1; |
| | | unsigned base = ((2 | (posSlot & 1)) << footerBits); |
| | | const CLzmaProb *probs = p->posEncoders + (size_t)base * 2; |
| | | // tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base, footerBits, i - base, p->ProbPrices); |
| | | UInt32 price = 0; |
| | | unsigned m = 1; |
| | | unsigned sym = i; |
| | | unsigned offset = (unsigned)1 << footerBits; |
| | | base += i; |
| | | |
| | | if (footerBits) |
| | | do |
| | | { |
| | | unsigned bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[m], bit); |
| | | m = (m << 1) + bit; |
| | | } while (--footerBits); |
| | | |
| | | { |
| | | unsigned prob = probs[m]; |
| | | tempPrices[base] = price + GET_PRICEa_0(prob); |
| | | tempPrices[base + offset] = price + GET_PRICEa_1(prob); |
| | | } |
| | | } |
| | | |
| | | for (lps = 0; lps < kNumLenToPosStates; lps++) |
| | | { |
| | | unsigned slot; |
| | | unsigned distTableSize2 = (p->distTableSize + 1) >> 1; |
| | | UInt32 *posSlotPrices = p->posSlotPrices[lps]; |
| | | const CLzmaProb *probs = p->posSlotEncoder[lps]; |
| | | |
| | | for (slot = 0; slot < distTableSize2; slot++) |
| | | { |
| | | // posSlotPrices[slot] = RcTree_GetPrice(encoder, kNumPosSlotBits, slot, p->ProbPrices); |
| | | UInt32 price; |
| | | unsigned bit; |
| | | unsigned sym = slot + (1 << (kNumPosSlotBits - 1)); |
| | | unsigned prob; |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price = GET_PRICEa(probs[sym], bit); |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | bit = sym & 1; |
| | | sym >>= 1; |
| | | price += GET_PRICEa(probs[sym], bit); |
| | | prob = probs[(size_t)slot + (1 << (kNumPosSlotBits - 1))]; |
| | | posSlotPrices[(size_t)slot * 2] = price + GET_PRICEa_0(prob); |
| | | posSlotPrices[(size_t)slot * 2 + 1] = price + GET_PRICEa_1(prob); |
| | | } |
| | | |
| | | { |
| | | UInt32 delta = ((UInt32)((kEndPosModelIndex / 2 - 1) - kNumAlignBits) << kNumBitPriceShiftBits); |
| | | for (slot = kEndPosModelIndex / 2; slot < distTableSize2; slot++) |
| | | { |
| | | posSlotPrices[(size_t)slot * 2] += delta; |
| | | posSlotPrices[(size_t)slot * 2 + 1] += delta; |
| | | delta += ((UInt32)1 << kNumBitPriceShiftBits); |
| | | } |
| | | } |
| | | |
| | | { |
| | | UInt32 *dp = p->distancesPrices[lps]; |
| | | |
| | | dp[0] = posSlotPrices[0]; |
| | | dp[1] = posSlotPrices[1]; |
| | | dp[2] = posSlotPrices[2]; |
| | | dp[3] = posSlotPrices[3]; |
| | | |
| | | for (i = 4; i < kNumFullDistances; i += 2) |
| | | { |
| | | UInt32 slotPrice = posSlotPrices[GetPosSlot1(i)]; |
| | | dp[i] = slotPrice + tempPrices[i]; |
| | | dp[i + 1] = slotPrice + tempPrices[i + 1]; |
| | | } |
| | | } |
| | | } |
| | | // } |
| | | } |
| | | |
| | | static void LzmaEnc_Construct(CLzmaEnc *p) |
| | | { |
| | | RangeEnc_Construct(&p->rc); |
| | | MatchFinder_Construct(&MFB); |
| | | |
| | | #ifndef Z7_ST |
| | | p->matchFinderMt.MatchFinder = &MFB; |
| | | MatchFinderMt_Construct(&p->matchFinderMt); |
| | | #endif |
| | | |
| | | { |
| | | CLzmaEncProps props; |
| | | LzmaEncProps_Init(&props); |
| | | LzmaEnc_SetProps((CLzmaEncHandle)(void *)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; |
| | | } |
| | | |
| | | static 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; |
| | | } |
| | | |
| | | static void LzmaEnc_Destruct(CLzmaEnc *p, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | #ifndef Z7_ST |
| | | MatchFinderMt_Destruct(&p->matchFinderMt, allocBig); |
| | | #endif |
| | | |
| | | MatchFinder_Free(&MFB, allocBig); |
| | | LzmaEnc_FreeLits(p, alloc); |
| | | RangeEnc_Free(&p->rc, alloc); |
| | | } |
| | | |
| | | void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | LzmaEnc_Destruct(p, alloc, allocBig); |
| | | ISzAlloc_Free(alloc, p); |
| | | } |
| | | |
| | | Z7_NO_INLINE |
| | | static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpackSize) |
| | | { |
| | | UInt32 nowPos32, startPos32; |
| | | if (p->needInit) |
| | | { |
| | | #ifndef Z7_ST |
| | | if (p->mtMode) |
| | | { |
| | | RINOK(MatchFinderMt_InitMt(&p->matchFinderMt)) |
| | | } |
| | | #endif |
| | | 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); |
| | | --p->repLenEncCounter; |
| | | 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); |
| | | // --p->lenEnc.counter; |
| | | |
| | | 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 sym = (UInt32)posSlot + (1 << kNumPosSlotBits); |
| | | range = p->rc.range; |
| | | probs = p->posSlotEncoder[GetLenToPosState(len)]; |
| | | do |
| | | { |
| | | CLzmaProb *prob = probs + (sym >> kNumPosSlotBits); |
| | | UInt32 bit = (sym >> (kNumPosSlotBits - 1)) & 1; |
| | | sym <<= 1; |
| | | RC_BIT(&p->rc, prob, bit) |
| | | } while (sym < (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, (unsigned)(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 += (UInt32)len; |
| | | p->additionalOffset -= len; |
| | | |
| | | if (p->additionalOffset == 0) |
| | | { |
| | | UInt32 processed; |
| | | |
| | | if (!p->fastMode) |
| | | { |
| | | /* |
| | | if (p->alignPriceCount >= 16) // kAlignTableSize |
| | | FillAlignPrices(p); |
| | | if (p->matchPriceCount >= 128) |
| | | FillDistancesPrices(p); |
| | | if (p->lenEnc.counter <= 0) |
| | | LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices); |
| | | */ |
| | | if (p->matchPriceCount >= 64) |
| | | { |
| | | FillAlignPrices(p); |
| | | // { int y; for (y = 0; y < 100; y++) { |
| | | FillDistancesPrices(p); |
| | | // }} |
| | | LenPriceEnc_UpdateTables(&p->lenEnc, (unsigned)1 << p->pb, &p->lenProbs, p->ProbPrices); |
| | | } |
| | | if (p->repLenEncCounter <= 0) |
| | | { |
| | | p->repLenEncCounter = REP_LEN_COUNT; |
| | | LenPriceEnc_UpdateTables(&p->repLenEnc, (unsigned)1 << p->pb, &p->repLenProbs, p->ProbPrices); |
| | | } |
| | | } |
| | | |
| | | 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; |
| | | UInt32 dictSize; |
| | | |
| | | if (!RangeEnc_Alloc(&p->rc, alloc)) |
| | | return SZ_ERROR_MEM; |
| | | |
| | | #ifndef Z7_ST |
| | | p->mtMode = (p->multiThread && !p->fastMode && (MFB.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; |
| | | } |
| | | } |
| | | |
| | | MFB.bigHash = (Byte)(p->dictSize > kBigHashDicLimit ? 1 : 0); |
| | | |
| | | dictSize = p->dictSize; |
| | | if (dictSize == ((UInt32)2 << 30) || dictSize == ((UInt32)3 << 30)) |
| | | { |
| | | /* 21.03 : here we reduce the dictionary for 2 reasons: |
| | | 1) we don't want 32-bit back_distance matches in decoder for 2 GB dictionary. |
| | | 2) we want to elimate useless last MatchFinder_Normalize3() for corner cases, |
| | | where data size is aligned for 1 GB: 5/6/8 GB. |
| | | That reducing must be >= 1 for such corner cases. */ |
| | | dictSize -= 1; |
| | | } |
| | | |
| | | if (beforeSize + dictSize < keepWindowSize) |
| | | beforeSize = keepWindowSize - dictSize; |
| | | |
| | | /* in worst case we can look ahead for |
| | | max(LZMA_MATCH_LEN_MAX, numFastBytes + 1 + numFastBytes) bytes. |
| | | we send larger value for (keepAfter) to MantchFinder_Create(): |
| | | (numFastBytes + LZMA_MATCH_LEN_MAX + 1) |
| | | */ |
| | | |
| | | #ifndef Z7_ST |
| | | if (p->mtMode) |
| | | { |
| | | RINOK(MatchFinderMt_Create(&p->matchFinderMt, dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX + 1 /* 18.04 */ |
| | | , |
| | | allocBig)) |
| | | p->matchFinderObj = &p->matchFinderMt; |
| | | MFB.bigHash = (Byte)(MFB.hashMask >= 0xFFFFFF ? 1 : 0); |
| | | MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder); |
| | | } |
| | | else |
| | | #endif |
| | | { |
| | | if (!MatchFinder_Create(&MFB, dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX + 1 /* 21.03 */ |
| | | , |
| | | allocBig)) |
| | | return SZ_ERROR_MEM; |
| | | p->matchFinderObj = &MFB; |
| | | MatchFinder_CreateVTable(&MFB, &p->matchFinder); |
| | | } |
| | | |
| | | return SZ_OK; |
| | | } |
| | | |
| | | static 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; |
| | | |
| | | { |
| | | for (i = 0; i < kNumOpts; i++) |
| | | p->opt[i].price = kInfinityPrice; |
| | | } |
| | | |
| | | p->additionalOffset = 0; |
| | | |
| | | p->pbMask = ((unsigned)1 << p->pb) - 1; |
| | | p->lpMask = ((UInt32)0x100 << p->lp) - ((unsigned)0x100 >> p->lc); |
| | | |
| | | // p->mf_Failure = False; |
| | | } |
| | | |
| | | static 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; |
| | | |
| | | p->repLenEncCounter = REP_LEN_COUNT; |
| | | |
| | | LenPriceEnc_UpdateTables(&p->lenEnc, (unsigned)1 << p->pb, &p->lenProbs, p->ProbPrices); |
| | | LenPriceEnc_UpdateTables(&p->repLenEnc, (unsigned)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; |
| | | p->nowPos64 = 0; |
| | | p->needInit = 1; |
| | | RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig)) |
| | | LzmaEnc_Init(p); |
| | | LzmaEnc_InitPrices(p); |
| | | return SZ_OK; |
| | | } |
| | | |
| | | static SRes LzmaEnc_Prepare(CLzmaEncHandle p, ISeqOutStreamPtr outStream, ISeqInStreamPtr inStream, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | MatchFinder_SET_STREAM(&MFB, inStream) p->rc.outStream = outStream; |
| | | return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig); |
| | | } |
| | | |
| | | SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle p, ISeqInStreamPtr inStream, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | MatchFinder_SET_STREAM(&MFB, inStream) return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); |
| | | } |
| | | |
| | | SRes LzmaEnc_MemPrepare(CLzmaEncHandle p, const Byte *src, SizeT srcLen, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | MatchFinder_SET_DIRECT_INPUT_BUF(&MFB, src, srcLen) LzmaEnc_SetDataSize(p, srcLen); |
| | | return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); |
| | | } |
| | | |
| | | void LzmaEnc_Finish(CLzmaEncHandle p) |
| | | { |
| | | #ifndef Z7_ST |
| | | // GET_CLzmaEnc_p |
| | | if (p->mtMode) |
| | | MatchFinderMt_ReleaseStream(&p->matchFinderMt); |
| | | #else |
| | | UNUSED_VAR(p) |
| | | #endif |
| | | } |
| | | |
| | | typedef struct |
| | | { |
| | | ISeqOutStream vt; |
| | | Byte *data; |
| | | size_t rem; |
| | | BoolInt overflow; |
| | | } CLzmaEnc_SeqOutStreamBuf; |
| | | |
| | | static size_t SeqOutStreamBuf_Write(ISeqOutStreamPtr pp, const void *data, size_t size) |
| | | { |
| | | Z7_CONTAINER_FROM_VTBL_TO_DECL_VAR_pp_vt_p(CLzmaEnc_SeqOutStreamBuf) if (p->rem < size) |
| | | { |
| | | size = p->rem; |
| | | p->overflow = True; |
| | | } |
| | | if (size != 0) |
| | | { |
| | | memcpy(p->data, data, size); |
| | | p->rem -= size; |
| | | p->data += size; |
| | | } |
| | | return size; |
| | | } |
| | | |
| | | /* |
| | | UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle p) |
| | | { |
| | | GET_const_CLzmaEnc_p |
| | | return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); |
| | | } |
| | | */ |
| | | |
| | | const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle p) |
| | | { |
| | | // GET_const_CLzmaEnc_p |
| | | return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; |
| | | } |
| | | |
| | | // (desiredPackSize == 0) is not allowed |
| | | SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle p, BoolInt reInit, Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | 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); |
| | | RangeEnc_Init(&p->rc); |
| | | p->rc.outStream = &outStream.vt; |
| | | nowPos64 = p->nowPos64; |
| | | |
| | | res = LzmaEnc_CodeOneBlock(p, desiredPackSize, *unpackSize); |
| | | |
| | | *unpackSize = (UInt32)(p->nowPos64 - nowPos64); |
| | | *destLen -= outStream.rem; |
| | | if (outStream.overflow) |
| | | return SZ_ERROR_OUTPUT_EOF; |
| | | |
| | | return res; |
| | | } |
| | | |
| | | Z7_NO_INLINE |
| | | static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgressPtr progress) |
| | | { |
| | | SRes res = SZ_OK; |
| | | |
| | | #ifndef Z7_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((CLzmaEncHandle)(void *)p); |
| | | |
| | | /* |
| | | if (res == SZ_OK && !Inline_MatchFinder_IsFinishedOK(&MFB)) |
| | | res = SZ_ERROR_FAIL; |
| | | } |
| | | */ |
| | | |
| | | return res; |
| | | } |
| | | |
| | | SRes LzmaEnc_Encode( |
| | | CLzmaEncHandle p, ISeqOutStreamPtr outStream, ISeqInStreamPtr inStream, ICompressProgressPtr progress, ISzAllocPtr alloc, ISzAllocPtr allocBig) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | RINOK(LzmaEnc_Prepare(p, outStream, inStream, alloc, allocBig)) |
| | | return LzmaEnc_Encode2(p, progress); |
| | | } |
| | | |
| | | SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *props, SizeT *size) |
| | | { |
| | | if (*size < LZMA_PROPS_SIZE) |
| | | return SZ_ERROR_PARAM; |
| | | *size = LZMA_PROPS_SIZE; |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | const UInt32 dictSize = p->dictSize; |
| | | UInt32 v; |
| | | props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc); |
| | | |
| | | // we write aligned dictionary value to properties for lzma decoder |
| | | if (dictSize >= ((UInt32)1 << 21)) |
| | | { |
| | | const UInt32 kDictMask = ((UInt32)1 << 20) - 1; |
| | | v = (dictSize + kDictMask) & ~kDictMask; |
| | | if (v < dictSize) |
| | | v = dictSize; |
| | | } |
| | | else |
| | | { |
| | | unsigned i = 11 * 2; |
| | | do |
| | | { |
| | | v = (UInt32)(2 + (i & 1)) << (i >> 1); |
| | | i++; |
| | | } while (v < dictSize); |
| | | } |
| | | |
| | | SetUi32(props + 1, v) return SZ_OK; |
| | | } |
| | | } |
| | | |
| | | unsigned LzmaEnc_IsWriteEndMark(CLzmaEncHandle p) |
| | | { |
| | | // GET_CLzmaEnc_p |
| | | return (unsigned)p->writeEndMark; |
| | | } |
| | | |
| | | SRes LzmaEnc_MemEncode(CLzmaEncHandle p, |
| | | Byte *dest, |
| | | SizeT *destLen, |
| | | const Byte *src, |
| | | SizeT srcLen, |
| | | int writeEndMark, |
| | | ICompressProgressPtr progress, |
| | | ISzAllocPtr alloc, |
| | | ISzAllocPtr allocBig) |
| | | { |
| | | SRes res; |
| | | // GET_CLzmaEnc_p |
| | | |
| | | 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(p, 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 -= (SizeT)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, |
| | | ICompressProgressPtr progress, |
| | | ISzAllocPtr alloc, |
| | | ISzAllocPtr allocBig) |
| | | { |
| | | CLzmaEncHandle p = 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; |
| | | } |
| | | |
| | | /* |
| | | #ifndef Z7_ST |
| | | void LzmaEnc_GetLzThreads(CLzmaEncHandle p, HANDLE lz_threads[2]) |
| | | { |
| | | GET_const_CLzmaEnc_p |
| | | lz_threads[0] = p->matchFinderMt.hashSync.thread; |
| | | lz_threads[1] = p->matchFinderMt.btSync.thread; |
| | | } |
| | | #endif |
| | | */ |