2018-11-08 11:52:06 +00:00
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/* LzmaEnc.c -- LZMA Encoder
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2021-05-16 06:51:59 +00:00
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2021-04-01: Igor Pavlov : Public domain */
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2018-11-08 11:52:06 +00:00
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#include "Precomp.h"
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#include <string.h>
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/* #define SHOW_STAT */
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/* #define SHOW_STAT2 */
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#if defined(SHOW_STAT) || defined(SHOW_STAT2)
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#include <stdio.h>
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#endif
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#include "LzmaEnc.h"
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#include "LzFind.h"
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#ifndef _7ZIP_ST
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#include "LzFindMt.h"
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#endif
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2021-05-16 06:51:59 +00:00
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/* the following LzmaEnc_* declarations is internal LZMA interface for LZMA2 encoder */
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SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, UInt32 keepWindowSize,
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ISzAllocPtr alloc, ISzAllocPtr allocBig);
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SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
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UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig);
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SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, BoolInt reInit,
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Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize);
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const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp);
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void LzmaEnc_Finish(CLzmaEncHandle pp);
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void LzmaEnc_SaveState(CLzmaEncHandle pp);
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void LzmaEnc_RestoreState(CLzmaEncHandle pp);
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2018-11-08 11:52:06 +00:00
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#ifdef SHOW_STAT
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static unsigned g_STAT_OFFSET = 0;
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#endif
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#define kLzmaMaxHistorySize ((UInt32)3 << 29)
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/* #define kLzmaMaxHistorySize ((UInt32)7 << 29) */
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#define kNumTopBits 24
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#define kTopValue ((UInt32)1 << kNumTopBits)
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#define kNumBitModelTotalBits 11
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#define kBitModelTotal (1 << kNumBitModelTotalBits)
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#define kNumMoveBits 5
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#define kProbInitValue (kBitModelTotal >> 1)
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#define kNumMoveReducingBits 4
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#define kNumBitPriceShiftBits 4
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2021-05-16 06:51:59 +00:00
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// #define kBitPrice (1 << kNumBitPriceShiftBits)
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2018-11-08 11:52:06 +00:00
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2019-07-15 13:16:24 +00:00
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#define REP_LEN_COUNT 64
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2018-11-08 11:52:06 +00:00
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void LzmaEncProps_Init(CLzmaEncProps *p)
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{
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p->level = 5;
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p->dictSize = p->mc = 0;
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p->reduceSize = (UInt64)(Int64)-1;
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p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;
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p->writeEndMark = 0;
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2021-05-16 06:51:59 +00:00
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p->affinity = 0;
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2018-11-08 11:52:06 +00:00
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}
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void LzmaEncProps_Normalize(CLzmaEncProps *p)
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{
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int level = p->level;
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if (level < 0) level = 5;
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p->level = level;
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2021-05-16 06:51:59 +00:00
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if (p->dictSize == 0)
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p->dictSize =
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( level <= 3 ? ((UInt32)1 << (level * 2 + 16)) :
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( level <= 6 ? ((UInt32)1 << (level + 19)) :
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( level <= 7 ? ((UInt32)1 << 25) : ((UInt32)1 << 26)
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)));
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2018-11-08 11:52:06 +00:00
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if (p->dictSize > p->reduceSize)
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{
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unsigned i;
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UInt32 reduceSize = (UInt32)p->reduceSize;
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for (i = 11; i <= 30; i++)
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{
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if (reduceSize <= ((UInt32)2 << i)) { p->dictSize = ((UInt32)2 << i); break; }
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if (reduceSize <= ((UInt32)3 << i)) { p->dictSize = ((UInt32)3 << i); break; }
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}
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}
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if (p->lc < 0) p->lc = 3;
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if (p->lp < 0) p->lp = 0;
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if (p->pb < 0) p->pb = 2;
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if (p->algo < 0) p->algo = (level < 5 ? 0 : 1);
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if (p->fb < 0) p->fb = (level < 7 ? 32 : 64);
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if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1);
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2021-05-16 06:51:59 +00:00
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if (p->numHashBytes < 0) p->numHashBytes = (p->btMode ? 4 : 5);
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if (p->mc == 0) p->mc = (16 + ((unsigned)p->fb >> 1)) >> (p->btMode ? 0 : 1);
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2018-11-08 11:52:06 +00:00
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if (p->numThreads < 0)
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p->numThreads =
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#ifndef _7ZIP_ST
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((p->btMode && p->algo) ? 2 : 1);
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#else
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1;
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#endif
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}
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UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
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{
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CLzmaEncProps props = *props2;
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LzmaEncProps_Normalize(&props);
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return props.dictSize;
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}
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2021-05-16 06:51:59 +00:00
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#if defined(_MSC_VER) && (_MSC_VER >= 1400)
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2018-11-08 11:52:06 +00:00
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/* BSR code is fast for some new CPUs */
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/* #define LZMA_LOG_BSR */
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#endif
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#ifdef LZMA_LOG_BSR
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#define kDicLogSizeMaxCompress 32
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#define BSR2_RET(pos, res) { unsigned long zz; _BitScanReverse(&zz, (pos)); res = (zz + zz) + ((pos >> (zz - 1)) & 1); }
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static unsigned GetPosSlot1(UInt32 pos)
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{
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unsigned res;
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BSR2_RET(pos, res);
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return res;
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}
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#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
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#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); }
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#else
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#define kNumLogBits (9 + sizeof(size_t) / 2)
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/* #define kNumLogBits (11 + sizeof(size_t) / 8 * 3) */
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#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
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static void LzmaEnc_FastPosInit(Byte *g_FastPos)
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{
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unsigned slot;
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g_FastPos[0] = 0;
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g_FastPos[1] = 1;
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g_FastPos += 2;
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for (slot = 2; slot < kNumLogBits * 2; slot++)
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{
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size_t k = ((size_t)1 << ((slot >> 1) - 1));
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size_t j;
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for (j = 0; j < k; j++)
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g_FastPos[j] = (Byte)slot;
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g_FastPos += k;
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}
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}
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/* we can use ((limit - pos) >> 31) only if (pos < ((UInt32)1 << 31)) */
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/*
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#define BSR2_RET(pos, res) { unsigned zz = 6 + ((kNumLogBits - 1) & \
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(0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
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res = p->g_FastPos[pos >> zz] + (zz * 2); }
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*/
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/*
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#define BSR2_RET(pos, res) { unsigned zz = 6 + ((kNumLogBits - 1) & \
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(0 - (((((UInt32)1 << (kNumLogBits)) - 1) - (pos >> 6)) >> 31))); \
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res = p->g_FastPos[pos >> zz] + (zz * 2); }
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*/
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#define BSR2_RET(pos, res) { unsigned zz = (pos < (1 << (kNumLogBits + 6))) ? 6 : 6 + kNumLogBits - 1; \
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res = p->g_FastPos[pos >> zz] + (zz * 2); }
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/*
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#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
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p->g_FastPos[pos >> 6] + 12 : \
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p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; }
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*/
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#define GetPosSlot1(pos) p->g_FastPos[pos]
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#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
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#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos & (kNumFullDistances - 1)]; else BSR2_RET(pos, res); }
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#endif
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#define LZMA_NUM_REPS 4
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typedef UInt16 CState;
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typedef UInt16 CExtra;
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typedef struct
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{
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UInt32 price;
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CState state;
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CExtra extra;
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// 0 : normal
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// 1 : LIT : MATCH
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// > 1 : MATCH (extra-1) : LIT : REP0 (len)
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UInt32 len;
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UInt32 dist;
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UInt32 reps[LZMA_NUM_REPS];
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} COptimal;
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2019-07-15 13:16:24 +00:00
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// 18.06
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#define kNumOpts (1 << 11)
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#define kPackReserve (kNumOpts * 8)
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// #define kNumOpts (1 << 12)
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// #define kPackReserve (1 + kNumOpts * 2)
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2018-11-08 11:52:06 +00:00
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#define kNumLenToPosStates 4
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#define kNumPosSlotBits 6
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2021-05-16 06:51:59 +00:00
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// #define kDicLogSizeMin 0
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2018-11-08 11:52:06 +00:00
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#define kDicLogSizeMax 32
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#define kDistTableSizeMax (kDicLogSizeMax * 2)
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#define kNumAlignBits 4
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#define kAlignTableSize (1 << kNumAlignBits)
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#define kAlignMask (kAlignTableSize - 1)
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#define kStartPosModelIndex 4
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#define kEndPosModelIndex 14
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#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
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typedef
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#ifdef _LZMA_PROB32
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UInt32
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#else
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UInt16
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#endif
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CLzmaProb;
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#define LZMA_PB_MAX 4
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#define LZMA_LC_MAX 8
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#define LZMA_LP_MAX 4
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#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX)
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#define kLenNumLowBits 3
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#define kLenNumLowSymbols (1 << kLenNumLowBits)
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#define kLenNumHighBits 8
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#define kLenNumHighSymbols (1 << kLenNumHighBits)
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#define kLenNumSymbolsTotal (kLenNumLowSymbols * 2 + kLenNumHighSymbols)
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#define LZMA_MATCH_LEN_MIN 2
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#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)
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#define kNumStates 12
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typedef struct
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{
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CLzmaProb low[LZMA_NUM_PB_STATES_MAX << (kLenNumLowBits + 1)];
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CLzmaProb high[kLenNumHighSymbols];
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} CLenEnc;
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typedef struct
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{
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unsigned tableSize;
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UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
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2019-07-15 13:16:24 +00:00
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// UInt32 prices1[LZMA_NUM_PB_STATES_MAX][kLenNumLowSymbols * 2];
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// UInt32 prices2[kLenNumSymbolsTotal];
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2018-11-08 11:52:06 +00:00
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} CLenPriceEnc;
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2019-07-15 13:16:24 +00:00
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#define GET_PRICE_LEN(p, posState, len) \
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((p)->prices[posState][(size_t)(len) - LZMA_MATCH_LEN_MIN])
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/*
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#define GET_PRICE_LEN(p, posState, len) \
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((p)->prices2[(size_t)(len) - 2] + ((p)->prices1[posState][((len) - 2) & (kLenNumLowSymbols * 2 - 1)] & (((len) - 2 - kLenNumLowSymbols * 2) >> 9)))
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*/
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2018-11-08 11:52:06 +00:00
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typedef struct
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{
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UInt32 range;
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unsigned cache;
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UInt64 low;
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UInt64 cacheSize;
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Byte *buf;
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Byte *bufLim;
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Byte *bufBase;
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ISeqOutStream *outStream;
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UInt64 processed;
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SRes res;
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} CRangeEnc;
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typedef struct
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{
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CLzmaProb *litProbs;
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unsigned state;
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UInt32 reps[LZMA_NUM_REPS];
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CLzmaProb posAlignEncoder[1 << kNumAlignBits];
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CLzmaProb isRep[kNumStates];
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CLzmaProb isRepG0[kNumStates];
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CLzmaProb isRepG1[kNumStates];
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CLzmaProb isRepG2[kNumStates];
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CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
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CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
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CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
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CLzmaProb posEncoders[kNumFullDistances];
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CLenEnc lenProbs;
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CLenEnc repLenProbs;
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} CSaveState;
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typedef UInt32 CProbPrice;
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typedef struct
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{
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void *matchFinderObj;
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IMatchFinder matchFinder;
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unsigned optCur;
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unsigned optEnd;
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unsigned longestMatchLen;
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unsigned numPairs;
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UInt32 numAvail;
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unsigned state;
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unsigned numFastBytes;
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unsigned additionalOffset;
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UInt32 reps[LZMA_NUM_REPS];
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unsigned lpMask, pbMask;
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CLzmaProb *litProbs;
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CRangeEnc rc;
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UInt32 backRes;
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unsigned lc, lp, pb;
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unsigned lclp;
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2019-07-15 13:16:24 +00:00
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BoolInt fastMode;
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BoolInt writeEndMark;
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BoolInt finished;
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|
|
BoolInt multiThread;
|
|
|
|
BoolInt needInit;
|
|
|
|
// BoolInt _maxMode;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
UInt64 nowPos64;
|
|
|
|
|
|
|
|
unsigned matchPriceCount;
|
2019-07-15 13:16:24 +00:00
|
|
|
// unsigned alignPriceCount;
|
|
|
|
int repLenEncCounter;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
unsigned distTableSize;
|
|
|
|
|
|
|
|
UInt32 dictSize;
|
|
|
|
SRes result;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
2019-07-15 13:16:24 +00:00
|
|
|
BoolInt mtMode;
|
2018-11-08 11:52:06 +00:00
|
|
|
// begin of CMatchFinderMt is used in LZ thread
|
|
|
|
CMatchFinderMt matchFinderMt;
|
|
|
|
// end of CMatchFinderMt is used in BT and HASH threads
|
|
|
|
#endif
|
|
|
|
|
|
|
|
CMatchFinder matchFinderBase;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
Byte pad[128];
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// LZ thread
|
|
|
|
CProbPrice ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
|
|
|
|
|
|
|
|
UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
|
|
|
|
|
|
|
|
UInt32 alignPrices[kAlignTableSize];
|
|
|
|
UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
|
|
|
|
UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances];
|
|
|
|
|
|
|
|
CLzmaProb posAlignEncoder[1 << kNumAlignBits];
|
|
|
|
CLzmaProb isRep[kNumStates];
|
|
|
|
CLzmaProb isRepG0[kNumStates];
|
|
|
|
CLzmaProb isRepG1[kNumStates];
|
|
|
|
CLzmaProb isRepG2[kNumStates];
|
|
|
|
CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
|
|
|
|
CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
|
|
|
|
CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
|
|
|
|
CLzmaProb posEncoders[kNumFullDistances];
|
|
|
|
|
|
|
|
CLenEnc lenProbs;
|
|
|
|
CLenEnc repLenProbs;
|
|
|
|
|
|
|
|
#ifndef LZMA_LOG_BSR
|
|
|
|
Byte g_FastPos[1 << kNumLogBits];
|
|
|
|
#endif
|
|
|
|
|
|
|
|
CLenPriceEnc lenEnc;
|
|
|
|
CLenPriceEnc repLenEnc;
|
|
|
|
|
|
|
|
COptimal opt[kNumOpts];
|
|
|
|
|
|
|
|
CSaveState saveState;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
Byte pad2[128];
|
|
|
|
#endif
|
|
|
|
} CLzmaEnc;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define COPY_ARR(dest, src, arr) memcpy(dest->arr, src->arr, sizeof(src->arr));
|
|
|
|
|
|
|
|
void LzmaEnc_SaveState(CLzmaEncHandle pp)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
CSaveState *dest = &p->saveState;
|
|
|
|
|
|
|
|
dest->state = p->state;
|
|
|
|
|
|
|
|
dest->lenProbs = p->lenProbs;
|
|
|
|
dest->repLenProbs = p->repLenProbs;
|
|
|
|
|
|
|
|
COPY_ARR(dest, p, reps);
|
|
|
|
|
|
|
|
COPY_ARR(dest, p, posAlignEncoder);
|
|
|
|
COPY_ARR(dest, p, isRep);
|
|
|
|
COPY_ARR(dest, p, isRepG0);
|
|
|
|
COPY_ARR(dest, p, isRepG1);
|
|
|
|
COPY_ARR(dest, p, isRepG2);
|
|
|
|
COPY_ARR(dest, p, isMatch);
|
|
|
|
COPY_ARR(dest, p, isRep0Long);
|
|
|
|
COPY_ARR(dest, p, posSlotEncoder);
|
|
|
|
COPY_ARR(dest, p, posEncoders);
|
|
|
|
|
|
|
|
memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << p->lclp) * sizeof(CLzmaProb));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void LzmaEnc_RestoreState(CLzmaEncHandle pp)
|
|
|
|
{
|
|
|
|
CLzmaEnc *dest = (CLzmaEnc *)pp;
|
|
|
|
const CSaveState *p = &dest->saveState;
|
|
|
|
|
|
|
|
dest->state = p->state;
|
|
|
|
|
|
|
|
dest->lenProbs = p->lenProbs;
|
|
|
|
dest->repLenProbs = p->repLenProbs;
|
|
|
|
|
|
|
|
COPY_ARR(dest, p, reps);
|
|
|
|
|
|
|
|
COPY_ARR(dest, p, posAlignEncoder);
|
|
|
|
COPY_ARR(dest, p, isRep);
|
|
|
|
COPY_ARR(dest, p, isRepG0);
|
|
|
|
COPY_ARR(dest, p, isRepG1);
|
|
|
|
COPY_ARR(dest, p, isRepG2);
|
|
|
|
COPY_ARR(dest, p, isMatch);
|
|
|
|
COPY_ARR(dest, p, isRep0Long);
|
|
|
|
COPY_ARR(dest, p, posSlotEncoder);
|
|
|
|
COPY_ARR(dest, p, posEncoders);
|
|
|
|
|
|
|
|
memcpy(dest->litProbs, p->litProbs, ((UInt32)0x300 << dest->lclp) * sizeof(CLzmaProb));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
CLzmaEncProps props = *props2;
|
|
|
|
LzmaEncProps_Normalize(&props);
|
|
|
|
|
|
|
|
if (props.lc > LZMA_LC_MAX
|
|
|
|
|| props.lp > LZMA_LP_MAX
|
|
|
|
|| props.pb > LZMA_PB_MAX
|
|
|
|
|| props.dictSize > ((UInt64)1 << kDicLogSizeMaxCompress)
|
|
|
|
|| props.dictSize > kLzmaMaxHistorySize)
|
|
|
|
return SZ_ERROR_PARAM;
|
|
|
|
|
|
|
|
p->dictSize = props.dictSize;
|
|
|
|
{
|
2021-05-16 06:51:59 +00:00
|
|
|
unsigned fb = (unsigned)props.fb;
|
2018-11-08 11:52:06 +00:00
|
|
|
if (fb < 5)
|
|
|
|
fb = 5;
|
|
|
|
if (fb > LZMA_MATCH_LEN_MAX)
|
|
|
|
fb = LZMA_MATCH_LEN_MAX;
|
|
|
|
p->numFastBytes = fb;
|
|
|
|
}
|
2021-05-16 06:51:59 +00:00
|
|
|
p->lc = (unsigned)props.lc;
|
|
|
|
p->lp = (unsigned)props.lp;
|
|
|
|
p->pb = (unsigned)props.pb;
|
2018-11-08 11:52:06 +00:00
|
|
|
p->fastMode = (props.algo == 0);
|
2019-07-15 13:16:24 +00:00
|
|
|
// p->_maxMode = True;
|
2018-11-08 11:52:06 +00:00
|
|
|
p->matchFinderBase.btMode = (Byte)(props.btMode ? 1 : 0);
|
|
|
|
{
|
|
|
|
unsigned numHashBytes = 4;
|
|
|
|
if (props.btMode)
|
|
|
|
{
|
2021-05-16 06:51:59 +00:00
|
|
|
if (props.numHashBytes < 2) numHashBytes = 2;
|
|
|
|
else if (props.numHashBytes < 4) numHashBytes = (unsigned)props.numHashBytes;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2021-05-16 06:51:59 +00:00
|
|
|
if (props.numHashBytes >= 5) numHashBytes = 5;
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
p->matchFinderBase.numHashBytes = numHashBytes;
|
|
|
|
}
|
|
|
|
|
|
|
|
p->matchFinderBase.cutValue = props.mc;
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
p->writeEndMark = (BoolInt)props.writeEndMark;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
/*
|
|
|
|
if (newMultiThread != _multiThread)
|
|
|
|
{
|
|
|
|
ReleaseMatchFinder();
|
|
|
|
_multiThread = newMultiThread;
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
p->multiThread = (props.numThreads > 1);
|
2021-05-16 06:51:59 +00:00
|
|
|
p->matchFinderMt.btSync.affinity =
|
|
|
|
p->matchFinderMt.hashSync.affinity = props.affinity;
|
2018-11-08 11:52:06 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return SZ_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void LzmaEnc_SetDataSize(CLzmaEncHandle pp, UInt64 expectedDataSiize)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
p->matchFinderBase.expectedDataSize = expectedDataSiize;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#define kState_Start 0
|
|
|
|
#define kState_LitAfterMatch 4
|
|
|
|
#define kState_LitAfterRep 5
|
|
|
|
#define kState_MatchAfterLit 7
|
|
|
|
#define kState_RepAfterLit 8
|
|
|
|
|
|
|
|
static const Byte kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5};
|
|
|
|
static const Byte kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
|
|
|
|
static const Byte kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};
|
|
|
|
static const Byte kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};
|
|
|
|
|
|
|
|
#define IsLitState(s) ((s) < 7)
|
|
|
|
#define GetLenToPosState2(len) (((len) < kNumLenToPosStates - 1) ? (len) : kNumLenToPosStates - 1)
|
|
|
|
#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)
|
|
|
|
|
|
|
|
#define kInfinityPrice (1 << 30)
|
|
|
|
|
|
|
|
static void RangeEnc_Construct(CRangeEnc *p)
|
|
|
|
{
|
|
|
|
p->outStream = NULL;
|
|
|
|
p->bufBase = NULL;
|
|
|
|
}
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
#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)
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
#define RC_BUF_SIZE (1 << 16)
|
|
|
|
|
|
|
|
static int RangeEnc_Alloc(CRangeEnc *p, ISzAllocPtr alloc)
|
|
|
|
{
|
|
|
|
if (!p->bufBase)
|
|
|
|
{
|
|
|
|
p->bufBase = (Byte *)ISzAlloc_Alloc(alloc, RC_BUF_SIZE);
|
|
|
|
if (!p->bufBase)
|
|
|
|
return 0;
|
|
|
|
p->bufLim = p->bufBase + RC_BUF_SIZE;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void RangeEnc_Free(CRangeEnc *p, ISzAllocPtr alloc)
|
|
|
|
{
|
|
|
|
ISzAlloc_Free(alloc, p->bufBase);
|
|
|
|
p->bufBase = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void RangeEnc_Init(CRangeEnc *p)
|
|
|
|
{
|
|
|
|
/* Stream.Init(); */
|
|
|
|
p->range = 0xFFFFFFFF;
|
|
|
|
p->cache = 0;
|
|
|
|
p->low = 0;
|
|
|
|
p->cacheSize = 0;
|
|
|
|
|
|
|
|
p->buf = p->bufBase;
|
|
|
|
|
|
|
|
p->processed = 0;
|
|
|
|
p->res = SZ_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
MY_NO_INLINE static void RangeEnc_FlushStream(CRangeEnc *p)
|
|
|
|
{
|
|
|
|
size_t num;
|
|
|
|
if (p->res != SZ_OK)
|
|
|
|
return;
|
2021-05-16 06:51:59 +00:00
|
|
|
num = (size_t)(p->buf - p->bufBase);
|
2018-11-08 11:52:06 +00:00
|
|
|
if (num != ISeqOutStream_Write(p->outStream, p->bufBase, num))
|
|
|
|
p->res = SZ_ERROR_WRITE;
|
|
|
|
p->processed += num;
|
|
|
|
p->buf = p->bufBase;
|
|
|
|
}
|
|
|
|
|
|
|
|
MY_NO_INLINE static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
|
|
|
|
{
|
|
|
|
UInt32 low = (UInt32)p->low;
|
|
|
|
unsigned high = (unsigned)(p->low >> 32);
|
|
|
|
p->low = (UInt32)(low << 8);
|
|
|
|
if (low < (UInt32)0xFF000000 || high != 0)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
Byte *buf = p->buf;
|
|
|
|
*buf++ = (Byte)(p->cache + high);
|
|
|
|
p->cache = (unsigned)(low >> 24);
|
|
|
|
p->buf = buf;
|
|
|
|
if (buf == p->bufLim)
|
|
|
|
RangeEnc_FlushStream(p);
|
|
|
|
if (p->cacheSize == 0)
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
high += 0xFF;
|
|
|
|
for (;;)
|
|
|
|
{
|
|
|
|
Byte *buf = p->buf;
|
|
|
|
*buf++ = (Byte)(high);
|
|
|
|
p->buf = buf;
|
|
|
|
if (buf == p->bufLim)
|
|
|
|
RangeEnc_FlushStream(p);
|
|
|
|
if (--p->cacheSize == 0)
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
p->cacheSize++;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void RangeEnc_FlushData(CRangeEnc *p)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < 5; i++)
|
|
|
|
RangeEnc_ShiftLow(p);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define RC_NORM(p) if (range < kTopValue) { range <<= 8; RangeEnc_ShiftLow(p); }
|
|
|
|
|
|
|
|
#define RC_BIT_PRE(p, prob) \
|
|
|
|
ttt = *(prob); \
|
|
|
|
newBound = (range >> kNumBitModelTotalBits) * ttt;
|
|
|
|
|
|
|
|
// #define _LZMA_ENC_USE_BRANCH
|
|
|
|
|
|
|
|
#ifdef _LZMA_ENC_USE_BRANCH
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
#define RC_BIT(p, prob, bit) { \
|
2018-11-08 11:52:06 +00:00
|
|
|
RC_BIT_PRE(p, prob) \
|
2019-07-15 13:16:24 +00:00
|
|
|
if (bit == 0) { range = newBound; ttt += (kBitModelTotal - ttt) >> kNumMoveBits; } \
|
2018-11-08 11:52:06 +00:00
|
|
|
else { (p)->low += newBound; range -= newBound; ttt -= ttt >> kNumMoveBits; } \
|
|
|
|
*(prob) = (CLzmaProb)ttt; \
|
|
|
|
RC_NORM(p) \
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
#define RC_BIT(p, prob, bit) { \
|
2018-11-08 11:52:06 +00:00
|
|
|
UInt32 mask; \
|
|
|
|
RC_BIT_PRE(p, prob) \
|
2019-07-15 13:16:24 +00:00
|
|
|
mask = 0 - (UInt32)bit; \
|
2018-11-08 11:52:06 +00:00
|
|
|
range &= mask; \
|
|
|
|
mask &= newBound; \
|
|
|
|
range -= mask; \
|
|
|
|
(p)->low += mask; \
|
2019-07-15 13:16:24 +00:00
|
|
|
mask = (UInt32)bit - 1; \
|
2018-11-08 11:52:06 +00:00
|
|
|
range += newBound & mask; \
|
|
|
|
mask &= (kBitModelTotal - ((1 << kNumMoveBits) - 1)); \
|
|
|
|
mask += ((1 << kNumMoveBits) - 1); \
|
2021-05-16 06:51:59 +00:00
|
|
|
ttt += (UInt32)((Int32)(mask - ttt) >> kNumMoveBits); \
|
2018-11-08 11:52:06 +00:00
|
|
|
*(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;
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 sym)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 range = p->range;
|
2019-07-15 13:16:24 +00:00
|
|
|
sym |= 0x100;
|
2018-11-08 11:52:06 +00:00
|
|
|
do
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
2019-07-15 13:16:24 +00:00
|
|
|
// RangeEnc_EncodeBit(p, probs + (sym >> 8), (sym >> 7) & 1);
|
|
|
|
CLzmaProb *prob = probs + (sym >> 8);
|
|
|
|
UInt32 bit = (sym >> 7) & 1;
|
|
|
|
sym <<= 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
RC_BIT(p, prob, bit);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
while (sym < 0x10000);
|
2018-11-08 11:52:06 +00:00
|
|
|
p->range = range;
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 sym, UInt32 matchByte)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 range = p->range;
|
|
|
|
UInt32 offs = 0x100;
|
2019-07-15 13:16:24 +00:00
|
|
|
sym |= 0x100;
|
2018-11-08 11:52:06 +00:00
|
|
|
do
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
|
|
|
CLzmaProb *prob;
|
|
|
|
UInt32 bit;
|
|
|
|
matchByte <<= 1;
|
2019-07-15 13:16:24 +00:00
|
|
|
// 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);
|
2018-11-08 11:52:06 +00:00
|
|
|
RC_BIT(p, prob, bit);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
while (sym < 0x10000);
|
2018-11-08 11:52:06 +00:00
|
|
|
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++;
|
|
|
|
}
|
|
|
|
}
|
2021-05-16 06:51:59 +00:00
|
|
|
ProbPrices[i] = (CProbPrice)(((unsigned)kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);
|
2018-11-08 11:52:06 +00:00
|
|
|
// printf("\n%3d: %5d", i, ProbPrices[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
#define GET_PRICE(prob, bit) \
|
|
|
|
p->ProbPrices[((prob) ^ (unsigned)(((-(int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
|
2018-11-08 11:52:06 +00:00
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
#define GET_PRICEa(prob, bit) \
|
|
|
|
ProbPrices[((prob) ^ (unsigned)((-((int)(bit))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
#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]
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 sym, const CProbPrice *ProbPrices)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 price = 0;
|
2019-07-15 13:16:24 +00:00
|
|
|
sym |= 0x100;
|
2018-11-08 11:52:06 +00:00
|
|
|
do
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned bit = sym & 1;
|
|
|
|
sym >>= 1;
|
|
|
|
price += GET_PRICEa(probs[sym], bit);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
while (sym >= 2);
|
2018-11-08 11:52:06 +00:00
|
|
|
return price;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static UInt32 LitEnc_Matched_GetPrice(const CLzmaProb *probs, UInt32 sym, UInt32 matchByte, const CProbPrice *ProbPrices)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 price = 0;
|
|
|
|
UInt32 offs = 0x100;
|
2019-07-15 13:16:24 +00:00
|
|
|
sym |= 0x100;
|
2018-11-08 11:52:06 +00:00
|
|
|
do
|
|
|
|
{
|
|
|
|
matchByte <<= 1;
|
2019-07-15 13:16:24 +00:00
|
|
|
price += GET_PRICEa(probs[offs + (matchByte & offs) + (sym >> 8)], (sym >> 7) & 1);
|
|
|
|
sym <<= 1;
|
|
|
|
offs &= ~(matchByte ^ sym);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
while (sym < 0x10000);
|
2018-11-08 11:52:06 +00:00
|
|
|
return price;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, unsigned numBits, unsigned sym)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 range = rc->range;
|
|
|
|
unsigned m = 1;
|
|
|
|
do
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned bit = sym & 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
// RangeEnc_EncodeBit(rc, probs + m, bit);
|
2019-07-15 13:16:24 +00:00
|
|
|
sym >>= 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, unsigned sym, unsigned posState)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 range, ttt, newBound;
|
|
|
|
CLzmaProb *probs = p->low;
|
|
|
|
range = rc->range;
|
|
|
|
RC_BIT_PRE(rc, probs);
|
2019-07-15 13:16:24 +00:00
|
|
|
if (sym >= kLenNumLowSymbols)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
RC_BIT_1(rc, probs);
|
|
|
|
probs += kLenNumLowSymbols;
|
|
|
|
RC_BIT_PRE(rc, probs);
|
2019-07-15 13:16:24 +00:00
|
|
|
if (sym >= kLenNumLowSymbols * 2)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
RC_BIT_1(rc, probs);
|
|
|
|
rc->range = range;
|
2019-07-15 13:16:24 +00:00
|
|
|
// RcTree_Encode(rc, p->high, kLenNumHighBits, sym - kLenNumLowSymbols * 2);
|
|
|
|
LitEnc_Encode(rc, p->high, sym - kLenNumLowSymbols * 2);
|
2018-11-08 11:52:06 +00:00
|
|
|
return;
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
sym -= kLenNumLowSymbols;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
// RcTree_Encode(rc, probs + (posState << kLenNumLowBits), kLenNumLowBits, sym);
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned m;
|
|
|
|
unsigned bit;
|
|
|
|
RC_BIT_0(rc, probs);
|
|
|
|
probs += (posState << (1 + kLenNumLowBits));
|
2019-07-15 13:16:24 +00:00
|
|
|
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);
|
2018-11-08 11:52:06 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
MY_NO_INLINE static void MY_FAST_CALL LenPriceEnc_UpdateTables(
|
|
|
|
CLenPriceEnc *p,
|
|
|
|
unsigned numPosStates,
|
2018-11-08 11:52:06 +00:00
|
|
|
const CLenEnc *enc,
|
|
|
|
const CProbPrice *ProbPrices)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
/*
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned i;
|
|
|
|
UInt32 b;
|
|
|
|
a = GET_PRICEa_0(enc->low[0]);
|
|
|
|
for (i = 0; i < kLenNumLowSymbols; i++)
|
|
|
|
p->prices2[i] = a;
|
2018-11-08 11:52:06 +00:00
|
|
|
a = GET_PRICEa_1(enc->low[0]);
|
2019-07-15 13:16:24 +00:00
|
|
|
b = a + GET_PRICEa_0(enc->low[kLenNumLowSymbols]);
|
|
|
|
for (i = kLenNumLowSymbols; i < kLenNumLowSymbols * 2; i++)
|
|
|
|
p->prices2[i] = b;
|
2018-11-08 11:52:06 +00:00
|
|
|
a += GET_PRICEa_1(enc->low[kLenNumLowSymbols]);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
// p->counter = numSymbols;
|
|
|
|
// p->counter = 64;
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
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);
|
2018-11-08 11:52:06 +00:00
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
{
|
|
|
|
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);
|
2018-11-08 11:52:06 +00:00
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
{
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
#ifdef SHOW_STAT
|
|
|
|
g_STAT_OFFSET += num;
|
|
|
|
printf("\n MovePos %u", num);
|
|
|
|
#endif
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define MOVE_POS(p, num) { \
|
|
|
|
p->additionalOffset += (num); \
|
2019-07-15 13:16:24 +00:00
|
|
|
p->matchFinder.Skip(p->matchFinderObj, (UInt32)(num)); }
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
|
|
|
|
static unsigned ReadMatchDistances(CLzmaEnc *p, unsigned *numPairsRes)
|
|
|
|
{
|
|
|
|
unsigned numPairs;
|
|
|
|
|
|
|
|
p->additionalOffset++;
|
|
|
|
p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
|
|
|
|
numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
|
|
|
|
*numPairsRes = numPairs;
|
|
|
|
|
|
|
|
#ifdef SHOW_STAT
|
|
|
|
printf("\n i = %u numPairs = %u ", g_STAT_OFFSET, numPairs / 2);
|
|
|
|
g_STAT_OFFSET++;
|
|
|
|
{
|
|
|
|
unsigned i;
|
|
|
|
for (i = 0; i < numPairs; i += 2)
|
|
|
|
printf("%2u %6u | ", p->matches[i], p->matches[i + 1]);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (numPairs == 0)
|
|
|
|
return 0;
|
|
|
|
{
|
|
|
|
unsigned len = p->matches[(size_t)numPairs - 2];
|
|
|
|
if (len != p->numFastBytes)
|
|
|
|
return len;
|
|
|
|
{
|
|
|
|
UInt32 numAvail = p->numAvail;
|
|
|
|
if (numAvail > LZMA_MATCH_LEN_MAX)
|
|
|
|
numAvail = LZMA_MATCH_LEN_MAX;
|
|
|
|
{
|
|
|
|
const Byte *p1 = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
|
|
|
|
const Byte *p2 = p1 + len;
|
2021-05-16 06:51:59 +00:00
|
|
|
ptrdiff_t dif = (ptrdiff_t)-1 - (ptrdiff_t)p->matches[(size_t)numPairs - 1];
|
2018-11-08 11:52:06 +00:00
|
|
|
const Byte *lim = p1 + numAvail;
|
2019-07-15 13:16:24 +00:00
|
|
|
for (; p2 != lim && *p2 == p2[dif]; p2++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
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])
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
MY_FORCE_INLINE
|
2018-11-08 11:52:06 +00:00
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned len = (unsigned)p->opt[cur].len;
|
|
|
|
unsigned extra = (unsigned)p->opt[cur].extra;
|
2018-11-08 11:52:06 +00:00
|
|
|
cur -= len;
|
|
|
|
|
|
|
|
if (extra)
|
|
|
|
{
|
|
|
|
wr--;
|
2019-07-15 13:16:24 +00:00
|
|
|
p->opt[wr].len = (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
p->opt[wr].len = (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#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;
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
for (len = 2; len < numAvail && data[len] == data2[len]; len++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
repLens[i] = len;
|
|
|
|
if (len > repLens[repMaxIndex])
|
|
|
|
repMaxIndex = i;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (repLens[repMaxIndex] >= p->numFastBytes)
|
|
|
|
{
|
|
|
|
unsigned len;
|
2019-07-15 13:16:24 +00:00
|
|
|
p->backRes = (UInt32)repMaxIndex;
|
2018-11-08 11:52:06 +00:00
|
|
|
len = repLens[repMaxIndex];
|
|
|
|
MOVE_POS(p, len - 1)
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
matches = p->matches;
|
|
|
|
|
|
|
|
if (mainLen >= p->numFastBytes)
|
|
|
|
{
|
|
|
|
p->backRes = matches[(size_t)numPairs - 1] + LZMA_NUM_REPS;
|
|
|
|
MOVE_POS(p, mainLen - 1)
|
|
|
|
return mainLen;
|
|
|
|
}
|
|
|
|
|
|
|
|
curByte = *data;
|
|
|
|
matchByte = *(data - reps[0]);
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
last = repLens[repMaxIndex];
|
|
|
|
if (last <= mainLen)
|
|
|
|
last = mainLen;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
if (last < 2 && curByte != matchByte)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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));
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
MakeAs_Lit(&p->opt[1]);
|
|
|
|
|
|
|
|
matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]);
|
|
|
|
repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]);
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
// 18.06
|
|
|
|
if (matchByte == curByte && repLens[0] == 0)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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]);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
if (last < 2)
|
|
|
|
{
|
|
|
|
p->backRes = p->opt[1].dist;
|
|
|
|
return 1;
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
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
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState, repLen);
|
2018-11-08 11:52:06 +00:00
|
|
|
COptimal *opt = &p->opt[repLen];
|
|
|
|
if (price2 < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price2;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)repLen;
|
|
|
|
opt->dist = (UInt32)i;
|
2018-11-08 11:52:06 +00:00
|
|
|
opt->extra = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
while (--repLen >= 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// ---------- MATCH ----------
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned len = repLens[0] + 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
if (len <= mainLen)
|
|
|
|
{
|
|
|
|
unsigned offs = 0;
|
|
|
|
UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
if (len < 2)
|
|
|
|
len = 2;
|
|
|
|
else
|
|
|
|
while (len > matches[offs])
|
|
|
|
offs += 2;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
for (; ; len++)
|
|
|
|
{
|
|
|
|
COptimal *opt;
|
|
|
|
UInt32 dist = matches[(size_t)offs + 1];
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 price = normalMatchPrice + GET_PRICE_LEN(&p->lenEnc, posState, len);
|
2018-11-08 11:52:06 +00:00
|
|
|
unsigned lenToPosState = GetLenToPosState(len);
|
|
|
|
|
|
|
|
if (dist < kNumFullDistances)
|
2019-07-15 13:16:24 +00:00
|
|
|
price += p->distancesPrices[lenToPosState][dist & (kNumFullDistances - 1)];
|
2018-11-08 11:52:06 +00:00
|
|
|
else
|
|
|
|
{
|
|
|
|
unsigned slot;
|
|
|
|
GetPosSlot2(dist, slot);
|
2019-07-15 13:16:24 +00:00
|
|
|
price += p->alignPrices[dist & kAlignMask];
|
|
|
|
price += p->posSlotPrices[lenToPosState][slot];
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
opt = &p->opt[len];
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
if (price < opt->price)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->price = price;
|
|
|
|
opt->len = (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
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 (;;)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned numAvail;
|
|
|
|
UInt32 numAvailFull;
|
2018-11-08 11:52:06 +00:00
|
|
|
unsigned newLen, numPairs, prev, state, posState, startLen;
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 litPrice, matchPrice, repMatchPrice;
|
|
|
|
BoolInt nextIsLit;
|
2018-11-08 11:52:06 +00:00
|
|
|
Byte curByte, matchByte;
|
|
|
|
const Byte *data;
|
|
|
|
COptimal *curOpt, *nextOpt;
|
|
|
|
|
|
|
|
if (++cur == last)
|
2019-07-15 13:16:24 +00:00
|
|
|
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;
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
newLen = ReadMatchDistances(p, &numPairs);
|
|
|
|
|
|
|
|
if (newLen >= p->numFastBytes)
|
|
|
|
{
|
|
|
|
p->numPairs = numPairs;
|
|
|
|
p->longestMatchLen = newLen;
|
2019-07-15 13:16:24 +00:00
|
|
|
break;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
curOpt = &p->opt[cur];
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
position++;
|
|
|
|
|
|
|
|
// we need that check here, if skip_items in p->opt are possible
|
|
|
|
/*
|
|
|
|
if (curOpt->price >= kInfinityPrice)
|
|
|
|
continue;
|
|
|
|
*/
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
prev = cur - curOpt->len;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
if (curOpt->len == 1)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
state = (unsigned)p->opt[prev].state;
|
2018-11-08 11:52:06 +00:00
|
|
|
if (IsShortRep(curOpt))
|
|
|
|
state = kShortRepNextStates[state];
|
|
|
|
else
|
|
|
|
state = kLiteralNextStates[state];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
const COptimal *prevOpt;
|
|
|
|
UInt32 b0;
|
|
|
|
UInt32 dist = curOpt->dist;
|
|
|
|
|
|
|
|
if (curOpt->extra)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
prev -= (unsigned)curOpt->extra;
|
2018-11-08 11:52:06 +00:00
|
|
|
state = kState_RepAfterLit;
|
|
|
|
if (curOpt->extra == 1)
|
2019-07-15 13:16:24 +00:00
|
|
|
state = (dist < LZMA_NUM_REPS ? kState_RepAfterLit : kState_MatchAfterLit);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
state = (unsigned)p->opt[prev].state;
|
2018-11-08 11:52:06 +00:00
|
|
|
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 ]
|
|
|
|
*/
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
{
|
|
|
|
UInt32 curPrice = curOpt->price;
|
|
|
|
unsigned prob = p->isMatch[state][posState];
|
|
|
|
matchPrice = curPrice + GET_PRICE_1(prob);
|
|
|
|
litPrice = curPrice + GET_PRICE_0(prob);
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
nextOpt = &p->opt[(size_t)cur + 1];
|
|
|
|
nextIsLit = False;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
// 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
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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]);
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
numAvailFull = p->numAvail;
|
|
|
|
{
|
|
|
|
unsigned temp = kNumOpts - 1 - cur;
|
|
|
|
if (numAvailFull > temp)
|
|
|
|
numAvailFull = (UInt32)temp;
|
|
|
|
}
|
|
|
|
|
|
|
|
// 18.06
|
2018-11-08 11:52:06 +00:00
|
|
|
// ---------- SHORT_REP ----------
|
2019-07-15 13:16:24 +00:00
|
|
|
if (IsLitState(state)) // 18.new
|
2018-11-08 11:52:06 +00:00
|
|
|
if (matchByte == curByte)
|
2019-07-15 13:16:24 +00:00
|
|
|
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
|
2018-11-08 11:52:06 +00:00
|
|
|
|| (nextOpt->dist != 0
|
2019-07-15 13:16:24 +00:00
|
|
|
// && nextOpt->extra <= 1 // 17.old
|
|
|
|
)
|
|
|
|
)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
UInt32 shortRepPrice = repMatchPrice + GetPrice_ShortRep(p, state, posState);
|
2019-07-15 13:16:24 +00:00
|
|
|
// if (shortRepPrice <= nextOpt->price) // 17.old
|
|
|
|
if (shortRepPrice < nextOpt->price) // 18.new
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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 ----------
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
if (!nextIsLit
|
|
|
|
&& litPrice != 0 // 18.new
|
2018-11-08 11:52:06 +00:00
|
|
|
&& 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;
|
2019-07-15 13:16:24 +00:00
|
|
|
for (len = 3; len < limit && data[len] == data2[len]; len++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
{
|
|
|
|
unsigned state2 = kLiteralNextStates[state];
|
|
|
|
unsigned posState2 = (position + 1) & p->pbMask;
|
|
|
|
UInt32 price = litPrice + GetPrice_Rep_0(p, state2, posState2);
|
|
|
|
{
|
|
|
|
unsigned offset = cur + len;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
if (last < offset)
|
|
|
|
last = offset;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
// do
|
|
|
|
{
|
|
|
|
UInt32 price2;
|
|
|
|
COptimal *opt;
|
|
|
|
len--;
|
|
|
|
// price2 = price + GetPrice_Len_Rep_0(p, len, state2, posState2);
|
2019-07-15 13:16:24 +00:00
|
|
|
price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len);
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
opt = &p->opt[offset];
|
|
|
|
// offset--;
|
|
|
|
if (price2 < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price2;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
opt->dist = 0;
|
|
|
|
opt->extra = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// while (len >= 3);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
startLen = 2; /* speed optimization */
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
// ---------- 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;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
for (len = 2; len < numAvail && data[len] == data2[len]; len++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
// if (len < startLen) continue; // 18.new: speed optimization
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
{
|
|
|
|
unsigned offset = cur + len;
|
|
|
|
if (last < offset)
|
|
|
|
last = offset;
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned len2 = len;
|
|
|
|
price = repMatchPrice + GetPrice_PureRep(p, repIndex, state, posState);
|
|
|
|
do
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState, len2);
|
2018-11-08 11:52:06 +00:00
|
|
|
COptimal *opt = &p->opt[cur + len2];
|
|
|
|
if (price2 < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price2;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)len2;
|
|
|
|
opt->dist = (UInt32)repIndex;
|
2018-11-08 11:52:06 +00:00
|
|
|
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;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
len2 += 2;
|
|
|
|
if (len2 <= limit)
|
|
|
|
if (data[len2 - 2] == data2[len2 - 2])
|
|
|
|
if (data[len2 - 1] == data2[len2 - 1])
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned state2 = kRepNextStates[state];
|
|
|
|
unsigned posState2 = (position + len) & p->pbMask;
|
2019-07-15 13:16:24 +00:00
|
|
|
price += GET_PRICE_LEN(&p->repLenEnc, posState, len)
|
2018-11-08 11:52:06 +00:00
|
|
|
+ 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);
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
for (; len2 < limit && data[len2] == data2[len2]; len2++)
|
|
|
|
{}
|
|
|
|
|
|
|
|
len2 -= len;
|
|
|
|
// if (len2 >= 3)
|
|
|
|
{
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned offset = cur + len + len2;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
if (last < offset)
|
|
|
|
last = offset;
|
2018-11-08 11:52:06 +00:00
|
|
|
// do
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 price2;
|
2018-11-08 11:52:06 +00:00
|
|
|
COptimal *opt;
|
|
|
|
len2--;
|
|
|
|
// price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2);
|
2019-07-15 13:16:24 +00:00
|
|
|
price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2);
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
opt = &p->opt[offset];
|
|
|
|
// offset--;
|
|
|
|
if (price2 < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price2;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)len2;
|
2018-11-08 11:52:06 +00:00
|
|
|
opt->extra = (CExtra)(len + 1);
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->dist = (UInt32)repIndex;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
// while (len2 >= 3);
|
|
|
|
}
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// ---------- MATCH ----------
|
|
|
|
/* for (unsigned len = 2; len <= newLen; len++) */
|
|
|
|
if (newLen > numAvail)
|
|
|
|
{
|
|
|
|
newLen = numAvail;
|
|
|
|
for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2);
|
2019-07-15 13:16:24 +00:00
|
|
|
matches[numPairs] = (UInt32)newLen;
|
2018-11-08 11:52:06 +00:00
|
|
|
numPairs += 2;
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
// startLen = 2; /* speed optimization */
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
if (newLen >= startLen)
|
|
|
|
{
|
|
|
|
UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
|
|
|
|
UInt32 dist;
|
|
|
|
unsigned offs, posSlot, len;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
{
|
|
|
|
unsigned offset = cur + newLen;
|
|
|
|
if (last < offset)
|
|
|
|
last = offset;
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
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++)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 price = normalMatchPrice + GET_PRICE_LEN(&p->lenEnc, posState, len);
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
COptimal *opt;
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned lenNorm = len - 2;
|
|
|
|
lenNorm = GetLenToPosState2(lenNorm);
|
2018-11-08 11:52:06 +00:00
|
|
|
if (dist < kNumFullDistances)
|
2019-07-15 13:16:24 +00:00
|
|
|
price += p->distancesPrices[lenNorm][dist & (kNumFullDistances - 1)];
|
2018-11-08 11:52:06 +00:00
|
|
|
else
|
2019-07-15 13:16:24 +00:00
|
|
|
price += p->posSlotPrices[lenNorm][posSlot] + p->alignPrices[dist & kAlignMask];
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
opt = &p->opt[cur + len];
|
|
|
|
if (price < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
opt->dist = dist + LZMA_NUM_REPS;
|
|
|
|
opt->extra = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
if (len == matches[offs])
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
// if (p->_maxMode) {
|
2018-11-08 11:52:06 +00:00
|
|
|
// MATCH : LIT : REP_0
|
|
|
|
|
|
|
|
const Byte *data2 = data - dist - 1;
|
|
|
|
unsigned len2 = len + 1;
|
|
|
|
unsigned limit = len2 + p->numFastBytes;
|
|
|
|
if (limit > numAvailFull)
|
|
|
|
limit = numAvailFull;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
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++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
len2 -= len;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
// if (len2 >= 3)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
if (last < offset)
|
|
|
|
last = offset;
|
2018-11-08 11:52:06 +00:00
|
|
|
// do
|
|
|
|
{
|
|
|
|
UInt32 price2;
|
|
|
|
COptimal *opt;
|
|
|
|
len2--;
|
|
|
|
// price2 = price + GetPrice_Len_Rep_0(p, len2, state2, posState2);
|
2019-07-15 13:16:24 +00:00
|
|
|
price2 = price + GET_PRICE_LEN(&p->repLenEnc, posState2, len2);
|
2018-11-08 11:52:06 +00:00
|
|
|
opt = &p->opt[offset];
|
|
|
|
// offset--;
|
|
|
|
if (price2 < opt->price)
|
|
|
|
{
|
|
|
|
opt->price = price2;
|
2019-07-15 13:16:24 +00:00
|
|
|
opt->len = (UInt32)len2;
|
2018-11-08 11:52:06 +00:00
|
|
|
opt->extra = (CExtra)(len + 1);
|
|
|
|
opt->dist = dist + LZMA_NUM_REPS;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// while (len2 >= 3);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
offs += 2;
|
|
|
|
if (offs == numPairs)
|
|
|
|
break;
|
|
|
|
dist = matches[(size_t)offs + 1];
|
|
|
|
// if (dist >= kNumFullDistances)
|
|
|
|
GetPosSlot2(dist, posSlot);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
do
|
|
|
|
p->opt[last].price = kInfinityPrice;
|
|
|
|
while (--last);
|
|
|
|
|
|
|
|
return Backward(p, cur);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#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;
|
2019-07-15 13:16:24 +00:00
|
|
|
// if (mainLen < 2 && p->state == 0) return 1; // 18.06.notused
|
2018-11-08 11:52:06 +00:00
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
for (len = 2; len < numAvail && data[len] == data2[len]; len++)
|
|
|
|
{}
|
2018-11-08 11:52:06 +00:00
|
|
|
if (len >= p->numFastBytes)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
p->backRes = (UInt32)i;
|
2018-11-08 11:52:06 +00:00
|
|
|
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)))
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
p->backRes = (UInt32)repIndex;
|
2018-11-08 11:52:06 +00:00
|
|
|
MOVE_POS(p, repLen - 1)
|
|
|
|
return repLen;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mainLen < 2 || numAvail <= 2)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
{
|
|
|
|
unsigned len1 = ReadMatchDistances(p, &p->numPairs);
|
|
|
|
p->longestMatchLen = len1;
|
|
|
|
|
|
|
|
if (len1 >= 2)
|
|
|
|
{
|
|
|
|
UInt32 newDist = p->matches[(size_t)p->numPairs - 1];
|
|
|
|
if ( (len1 >= mainLen && newDist < mainDist)
|
|
|
|
|| (len1 == mainLen + 1 && !ChangePair(mainDist, newDist))
|
|
|
|
|| (len1 > mainLen + 1)
|
|
|
|
|| (len1 + 1 >= mainLen && mainLen >= 3 && ChangePair(newDist, mainDist)))
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
|
|
|
|
|
|
|
|
for (i = 0; i < LZMA_NUM_REPS; i++)
|
|
|
|
{
|
|
|
|
unsigned len, limit;
|
|
|
|
const Byte *data2 = data - p->reps[i];
|
|
|
|
if (data[0] != data2[0] || data[1] != data2[1])
|
|
|
|
continue;
|
|
|
|
limit = mainLen - 1;
|
|
|
|
for (len = 2;; len++)
|
|
|
|
{
|
|
|
|
if (len >= limit)
|
|
|
|
return 1;
|
|
|
|
if (data[len] != data2[len])
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
p->backRes = mainDist + LZMA_NUM_REPS;
|
|
|
|
if (mainLen != 2)
|
|
|
|
{
|
|
|
|
MOVE_POS(p, mainLen - 2)
|
|
|
|
}
|
|
|
|
return mainLen;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void WriteEndMarker(CLzmaEnc *p, unsigned posState)
|
|
|
|
{
|
|
|
|
UInt32 range;
|
|
|
|
range = p->rc.range;
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
|
|
|
CLzmaProb *prob = &p->isMatch[p->state][posState];
|
|
|
|
RC_BIT_PRE(&p->rc, prob)
|
|
|
|
RC_BIT_1(&p->rc, prob)
|
|
|
|
prob = &p->isRep[p->state];
|
|
|
|
RC_BIT_PRE(&p->rc, prob)
|
|
|
|
RC_BIT_0(&p->rc, prob)
|
|
|
|
}
|
|
|
|
p->state = kMatchNextStates[p->state];
|
|
|
|
|
|
|
|
p->rc.range = range;
|
|
|
|
LenEnc_Encode(&p->lenProbs, &p->rc, 0, posState);
|
|
|
|
range = p->rc.range;
|
|
|
|
|
|
|
|
{
|
|
|
|
// RcTree_Encode_PosSlot(&p->rc, p->posSlotEncoder[0], (1 << kNumPosSlotBits) - 1);
|
|
|
|
CLzmaProb *probs = p->posSlotEncoder[0];
|
|
|
|
unsigned m = 1;
|
|
|
|
do
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
|
|
|
RC_BIT_PRE(p, probs + m)
|
|
|
|
RC_BIT_1(&p->rc, probs + m);
|
|
|
|
m = (m << 1) + 1;
|
|
|
|
}
|
|
|
|
while (m < (1 << kNumPosSlotBits));
|
|
|
|
}
|
|
|
|
{
|
|
|
|
// RangeEnc_EncodeDirectBits(&p->rc, ((UInt32)1 << (30 - kNumAlignBits)) - 1, 30 - kNumAlignBits); UInt32 range = p->range;
|
|
|
|
unsigned numBits = 30 - kNumAlignBits;
|
|
|
|
do
|
|
|
|
{
|
|
|
|
range >>= 1;
|
|
|
|
p->rc.low += range;
|
|
|
|
RC_NORM(&p->rc)
|
|
|
|
}
|
|
|
|
while (--numBits);
|
|
|
|
}
|
|
|
|
|
|
|
|
{
|
|
|
|
// RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
|
|
|
|
CLzmaProb *probs = p->posAlignEncoder;
|
|
|
|
unsigned m = 1;
|
|
|
|
do
|
|
|
|
{
|
|
|
|
UInt32 ttt, newBound;
|
|
|
|
RC_BIT_PRE(p, probs + m)
|
|
|
|
RC_BIT_1(&p->rc, probs + m);
|
|
|
|
m = (m << 1) + 1;
|
|
|
|
}
|
|
|
|
while (m < kAlignTableSize);
|
|
|
|
}
|
|
|
|
p->rc.range = range;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static SRes CheckErrors(CLzmaEnc *p)
|
|
|
|
{
|
|
|
|
if (p->result != SZ_OK)
|
|
|
|
return p->result;
|
|
|
|
if (p->rc.res != SZ_OK)
|
|
|
|
p->result = SZ_ERROR_WRITE;
|
|
|
|
if (p->matchFinderBase.result != SZ_OK)
|
|
|
|
p->result = SZ_ERROR_READ;
|
|
|
|
if (p->result != SZ_OK)
|
|
|
|
p->finished = True;
|
|
|
|
return p->result;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
MY_NO_INLINE static SRes Flush(CLzmaEnc *p, UInt32 nowPos)
|
|
|
|
{
|
|
|
|
/* ReleaseMFStream(); */
|
|
|
|
p->finished = True;
|
|
|
|
if (p->writeEndMark)
|
|
|
|
WriteEndMarker(p, nowPos & p->pbMask);
|
|
|
|
RangeEnc_FlushData(&p->rc);
|
|
|
|
RangeEnc_FlushStream(&p->rc);
|
|
|
|
return CheckErrors(p);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
MY_NO_INLINE static void FillAlignPrices(CLzmaEnc *p)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned i;
|
|
|
|
const CProbPrice *ProbPrices = p->ProbPrices;
|
|
|
|
const CLzmaProb *probs = p->posAlignEncoder;
|
2019-07-15 13:16:24 +00:00
|
|
|
// p->alignPriceCount = 0;
|
2018-11-08 11:52:06 +00:00
|
|
|
for (i = 0; i < kAlignTableSize / 2; i++)
|
|
|
|
{
|
|
|
|
UInt32 price = 0;
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned sym = i;
|
2018-11-08 11:52:06 +00:00
|
|
|
unsigned m = 1;
|
|
|
|
unsigned bit;
|
|
|
|
UInt32 prob;
|
2019-07-15 13:16:24 +00:00
|
|
|
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;
|
2018-11-08 11:52:06 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
MY_NO_INLINE static void FillDistancesPrices(CLzmaEnc *p)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
// int y; for (y = 0; y < 100; y++) {
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
UInt32 tempPrices[kNumFullDistances];
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned i, lps;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
const CProbPrice *ProbPrices = p->ProbPrices;
|
|
|
|
p->matchPriceCount = 0;
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
for (i = kStartPosModelIndex / 2; i < kNumFullDistances / 2; i++)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
unsigned posSlot = GetPosSlot1(i);
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned footerBits = (posSlot >> 1) - 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
unsigned base = ((2 | (posSlot & 1)) << footerBits);
|
2019-07-15 13:16:24 +00:00
|
|
|
const CLzmaProb *probs = p->posEncoders + (size_t)base * 2;
|
2018-11-08 11:52:06 +00:00
|
|
|
// tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base, footerBits, i - base, p->ProbPrices);
|
|
|
|
UInt32 price = 0;
|
|
|
|
unsigned m = 1;
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned sym = i;
|
|
|
|
unsigned offset = (unsigned)1 << footerBits;
|
|
|
|
base += i;
|
|
|
|
|
|
|
|
if (footerBits)
|
2018-11-08 11:52:06 +00:00
|
|
|
do
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
unsigned bit = sym & 1;
|
|
|
|
sym >>= 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
price += GET_PRICEa(probs[m], bit);
|
|
|
|
m = (m << 1) + bit;
|
|
|
|
}
|
|
|
|
while (--footerBits);
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
{
|
|
|
|
unsigned prob = probs[m];
|
|
|
|
tempPrices[base ] = price + GET_PRICEa_0(prob);
|
|
|
|
tempPrices[base + offset] = price + GET_PRICEa_1(prob);
|
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
for (lps = 0; lps < kNumLenToPosStates; lps++)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
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++)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
// posSlotPrices[slot] = RcTree_GetPrice(encoder, kNumPosSlotBits, slot, p->ProbPrices);
|
|
|
|
UInt32 price;
|
2018-11-08 11:52:06 +00:00
|
|
|
unsigned bit;
|
2019-07-15 13:16:24 +00:00
|
|
|
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);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 delta = ((UInt32)((kEndPosModelIndex / 2 - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
|
|
|
|
for (slot = kEndPosModelIndex / 2; slot < distTableSize2; slot++)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
posSlotPrices[(size_t)slot * 2 ] += delta;
|
|
|
|
posSlotPrices[(size_t)slot * 2 + 1] += delta;
|
|
|
|
delta += ((UInt32)1 << kNumBitPriceShiftBits);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
{
|
|
|
|
UInt32 *dp = p->distancesPrices[lps];
|
|
|
|
|
|
|
|
dp[0] = posSlotPrices[0];
|
|
|
|
dp[1] = posSlotPrices[1];
|
|
|
|
dp[2] = posSlotPrices[2];
|
|
|
|
dp[3] = posSlotPrices[3];
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
for (i = 4; i < kNumFullDistances; i += 2)
|
|
|
|
{
|
|
|
|
UInt32 slotPrice = posSlotPrices[GetPosSlot1(i)];
|
2019-07-15 13:16:24 +00:00
|
|
|
dp[i ] = slotPrice + tempPrices[i];
|
|
|
|
dp[i + 1] = slotPrice + tempPrices[i + 1];
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
// }
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
static void LzmaEnc_Construct(CLzmaEnc *p)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
RangeEnc_Construct(&p->rc);
|
|
|
|
MatchFinder_Construct(&p->matchFinderBase);
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
MatchFinderMt_Construct(&p->matchFinderMt);
|
|
|
|
p->matchFinderMt.MatchFinder = &p->matchFinderBase;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
{
|
|
|
|
CLzmaEncProps props;
|
|
|
|
LzmaEncProps_Init(&props);
|
|
|
|
LzmaEnc_SetProps(p, &props);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef LZMA_LOG_BSR
|
|
|
|
LzmaEnc_FastPosInit(p->g_FastPos);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
LzmaEnc_InitPriceTables(p->ProbPrices);
|
|
|
|
p->litProbs = NULL;
|
|
|
|
p->saveState.litProbs = NULL;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
CLzmaEncHandle LzmaEnc_Create(ISzAllocPtr alloc)
|
|
|
|
{
|
|
|
|
void *p;
|
|
|
|
p = ISzAlloc_Alloc(alloc, sizeof(CLzmaEnc));
|
|
|
|
if (p)
|
|
|
|
LzmaEnc_Construct((CLzmaEnc *)p);
|
|
|
|
return p;
|
|
|
|
}
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAllocPtr alloc)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
ISzAlloc_Free(alloc, p->litProbs);
|
|
|
|
ISzAlloc_Free(alloc, p->saveState.litProbs);
|
|
|
|
p->litProbs = NULL;
|
|
|
|
p->saveState.litProbs = NULL;
|
|
|
|
}
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
static void LzmaEnc_Destruct(CLzmaEnc *p, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
MatchFinder_Free(&p->matchFinderBase, allocBig);
|
|
|
|
LzmaEnc_FreeLits(p, alloc);
|
|
|
|
RangeEnc_Free(&p->rc, alloc);
|
|
|
|
}
|
|
|
|
|
|
|
|
void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig);
|
|
|
|
ISzAlloc_Free(alloc, p);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
MY_NO_INLINE
|
2018-11-08 11:52:06 +00:00
|
|
|
static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, UInt32 maxPackSize, UInt32 maxUnpackSize)
|
|
|
|
{
|
|
|
|
UInt32 nowPos32, startPos32;
|
|
|
|
if (p->needInit)
|
|
|
|
{
|
|
|
|
p->matchFinder.Init(p->matchFinderObj);
|
|
|
|
p->needInit = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (p->finished)
|
|
|
|
return p->result;
|
|
|
|
RINOK(CheckErrors(p));
|
|
|
|
|
|
|
|
nowPos32 = (UInt32)p->nowPos64;
|
|
|
|
startPos32 = nowPos32;
|
|
|
|
|
|
|
|
if (p->nowPos64 == 0)
|
|
|
|
{
|
|
|
|
unsigned numPairs;
|
|
|
|
Byte curByte;
|
|
|
|
if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
|
|
|
|
return Flush(p, nowPos32);
|
|
|
|
ReadMatchDistances(p, &numPairs);
|
|
|
|
RangeEnc_EncodeBit_0(&p->rc, &p->isMatch[kState_Start][0]);
|
|
|
|
// p->state = kLiteralNextStates[p->state];
|
|
|
|
curByte = *(p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset);
|
|
|
|
LitEnc_Encode(&p->rc, p->litProbs, curByte);
|
|
|
|
p->additionalOffset--;
|
|
|
|
nowPos32++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)
|
|
|
|
|
|
|
|
for (;;)
|
|
|
|
{
|
|
|
|
UInt32 dist;
|
|
|
|
unsigned len, posState;
|
|
|
|
UInt32 range, ttt, newBound;
|
|
|
|
CLzmaProb *probs;
|
|
|
|
|
|
|
|
if (p->fastMode)
|
|
|
|
len = GetOptimumFast(p);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
unsigned oci = p->optCur;
|
|
|
|
if (p->optEnd == oci)
|
|
|
|
len = GetOptimum(p, nowPos32);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
const COptimal *opt = &p->opt[oci];
|
|
|
|
len = opt->len;
|
|
|
|
p->backRes = opt->dist;
|
|
|
|
p->optCur = oci + 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
posState = (unsigned)nowPos32 & p->pbMask;
|
|
|
|
range = p->rc.range;
|
|
|
|
probs = &p->isMatch[p->state][posState];
|
|
|
|
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
|
|
|
|
dist = p->backRes;
|
|
|
|
|
|
|
|
#ifdef SHOW_STAT2
|
|
|
|
printf("\n pos = %6X, len = %3u pos = %6u", nowPos32, len, dist);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (dist == MARK_LIT)
|
|
|
|
{
|
|
|
|
Byte curByte;
|
|
|
|
const Byte *data;
|
|
|
|
unsigned state;
|
|
|
|
|
|
|
|
RC_BIT_0(&p->rc, probs);
|
|
|
|
p->rc.range = range;
|
|
|
|
data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
|
|
|
|
probs = LIT_PROBS(nowPos32, *(data - 1));
|
|
|
|
curByte = *data;
|
|
|
|
state = p->state;
|
|
|
|
p->state = kLiteralNextStates[state];
|
|
|
|
if (IsLitState(state))
|
|
|
|
LitEnc_Encode(&p->rc, probs, curByte);
|
|
|
|
else
|
|
|
|
LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0]));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
RC_BIT_1(&p->rc, probs);
|
|
|
|
probs = &p->isRep[p->state];
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
|
|
|
|
if (dist < LZMA_NUM_REPS)
|
|
|
|
{
|
|
|
|
RC_BIT_1(&p->rc, probs);
|
|
|
|
probs = &p->isRepG0[p->state];
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
if (dist == 0)
|
|
|
|
{
|
|
|
|
RC_BIT_0(&p->rc, probs);
|
|
|
|
probs = &p->isRep0Long[p->state][posState];
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
if (len != 1)
|
|
|
|
{
|
|
|
|
RC_BIT_1_BASE(&p->rc, probs);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
RC_BIT_0_BASE(&p->rc, probs);
|
|
|
|
p->state = kShortRepNextStates[p->state];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
RC_BIT_1(&p->rc, probs);
|
|
|
|
probs = &p->isRepG1[p->state];
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
if (dist == 1)
|
|
|
|
{
|
|
|
|
RC_BIT_0_BASE(&p->rc, probs);
|
|
|
|
dist = p->reps[1];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
RC_BIT_1(&p->rc, probs);
|
|
|
|
probs = &p->isRepG2[p->state];
|
|
|
|
RC_BIT_PRE(&p->rc, probs)
|
|
|
|
if (dist == 2)
|
|
|
|
{
|
|
|
|
RC_BIT_0_BASE(&p->rc, probs);
|
|
|
|
dist = p->reps[2];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
RC_BIT_1_BASE(&p->rc, probs);
|
|
|
|
dist = p->reps[3];
|
|
|
|
p->reps[3] = p->reps[2];
|
|
|
|
}
|
|
|
|
p->reps[2] = p->reps[1];
|
|
|
|
}
|
|
|
|
p->reps[1] = p->reps[0];
|
|
|
|
p->reps[0] = dist;
|
|
|
|
}
|
|
|
|
|
|
|
|
RC_NORM(&p->rc)
|
|
|
|
|
|
|
|
p->rc.range = range;
|
|
|
|
|
|
|
|
if (len != 1)
|
|
|
|
{
|
|
|
|
LenEnc_Encode(&p->repLenProbs, &p->rc, len - LZMA_MATCH_LEN_MIN, posState);
|
2019-07-15 13:16:24 +00:00
|
|
|
--p->repLenEncCounter;
|
2018-11-08 11:52:06 +00:00
|
|
|
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);
|
2019-07-15 13:16:24 +00:00
|
|
|
// --p->lenEnc.counter;
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
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);
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
UInt32 sym = (UInt32)posSlot + (1 << kNumPosSlotBits);
|
2018-11-08 11:52:06 +00:00
|
|
|
range = p->rc.range;
|
|
|
|
probs = p->posSlotEncoder[GetLenToPosState(len)];
|
|
|
|
do
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
CLzmaProb *prob = probs + (sym >> kNumPosSlotBits);
|
|
|
|
UInt32 bit = (sym >> (kNumPosSlotBits - 1)) & 1;
|
|
|
|
sym <<= 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
RC_BIT(&p->rc, prob, bit);
|
|
|
|
}
|
2019-07-15 13:16:24 +00:00
|
|
|
while (sym < (1 << kNumPosSlotBits * 2));
|
2018-11-08 11:52:06 +00:00
|
|
|
p->rc.range = range;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dist >= kStartPosModelIndex)
|
|
|
|
{
|
|
|
|
unsigned footerBits = ((posSlot >> 1) - 1);
|
|
|
|
|
|
|
|
if (dist < kNumFullDistances)
|
|
|
|
{
|
|
|
|
unsigned base = ((2 | (posSlot & 1)) << footerBits);
|
2019-07-15 13:16:24 +00:00
|
|
|
RcTree_ReverseEncode(&p->rc, p->posEncoders + base, footerBits, (unsigned)(dist /* - base */));
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
// p->alignPriceCount++;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
nowPos32 += (UInt32)len;
|
2018-11-08 11:52:06 +00:00
|
|
|
p->additionalOffset -= len;
|
|
|
|
|
|
|
|
if (p->additionalOffset == 0)
|
|
|
|
{
|
|
|
|
UInt32 processed;
|
|
|
|
|
|
|
|
if (!p->fastMode)
|
|
|
|
{
|
2019-07-15 13:16:24 +00:00
|
|
|
/*
|
|
|
|
if (p->alignPriceCount >= 16) // kAlignTableSize
|
|
|
|
FillAlignPrices(p);
|
|
|
|
if (p->matchPriceCount >= 128)
|
2018-11-08 11:52:06 +00:00
|
|
|
FillDistancesPrices(p);
|
2019-07-15 13:16:24 +00:00
|
|
|
if (p->lenEnc.counter <= 0)
|
|
|
|
LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, &p->lenProbs, p->ProbPrices);
|
|
|
|
*/
|
|
|
|
if (p->matchPriceCount >= 64)
|
|
|
|
{
|
2018-11-08 11:52:06 +00:00
|
|
|
FillAlignPrices(p);
|
2019-07-15 13:16:24 +00:00
|
|
|
// { int y; for (y = 0; y < 100; y++) {
|
|
|
|
FillDistancesPrices(p);
|
|
|
|
// }}
|
2021-05-16 06:51:59 +00:00
|
|
|
LenPriceEnc_UpdateTables(&p->lenEnc, (unsigned)1 << p->pb, &p->lenProbs, p->ProbPrices);
|
2019-07-15 13:16:24 +00:00
|
|
|
}
|
|
|
|
if (p->repLenEncCounter <= 0)
|
|
|
|
{
|
|
|
|
p->repLenEncCounter = REP_LEN_COUNT;
|
2021-05-16 06:51:59 +00:00
|
|
|
LenPriceEnc_UpdateTables(&p->repLenEnc, (unsigned)1 << p->pb, &p->repLenProbs, p->ProbPrices);
|
2019-07-15 13:16:24 +00:00
|
|
|
}
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
|
|
|
|
break;
|
|
|
|
processed = nowPos32 - startPos32;
|
|
|
|
|
|
|
|
if (maxPackSize)
|
|
|
|
{
|
|
|
|
if (processed + kNumOpts + 300 >= maxUnpackSize
|
|
|
|
|| RangeEnc_GetProcessed_sizet(&p->rc) + kPackReserve >= maxPackSize)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else if (processed >= (1 << 17))
|
|
|
|
{
|
|
|
|
p->nowPos64 += nowPos32 - startPos32;
|
|
|
|
return CheckErrors(p);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
p->nowPos64 += nowPos32 - startPos32;
|
|
|
|
return Flush(p, nowPos32);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define kBigHashDicLimit ((UInt32)1 << 24)
|
|
|
|
|
|
|
|
static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
UInt32 beforeSize = kNumOpts;
|
|
|
|
if (!RangeEnc_Alloc(&p->rc, alloc))
|
|
|
|
return SZ_ERROR_MEM;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
p->mtMode = (p->multiThread && !p->fastMode && (p->matchFinderBase.btMode != 0));
|
|
|
|
#endif
|
|
|
|
|
|
|
|
{
|
|
|
|
unsigned lclp = p->lc + p->lp;
|
|
|
|
if (!p->litProbs || !p->saveState.litProbs || p->lclp != lclp)
|
|
|
|
{
|
|
|
|
LzmaEnc_FreeLits(p, alloc);
|
|
|
|
p->litProbs = (CLzmaProb *)ISzAlloc_Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));
|
|
|
|
p->saveState.litProbs = (CLzmaProb *)ISzAlloc_Alloc(alloc, ((UInt32)0x300 << lclp) * sizeof(CLzmaProb));
|
|
|
|
if (!p->litProbs || !p->saveState.litProbs)
|
|
|
|
{
|
|
|
|
LzmaEnc_FreeLits(p, alloc);
|
|
|
|
return SZ_ERROR_MEM;
|
|
|
|
}
|
|
|
|
p->lclp = lclp;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
p->matchFinderBase.bigHash = (Byte)(p->dictSize > kBigHashDicLimit ? 1 : 0);
|
|
|
|
|
|
|
|
if (beforeSize + p->dictSize < keepWindowSize)
|
|
|
|
beforeSize = keepWindowSize - p->dictSize;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
if (p->mtMode)
|
|
|
|
{
|
|
|
|
RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes,
|
|
|
|
LZMA_MATCH_LEN_MAX
|
|
|
|
+ 1 /* 18.04 */
|
|
|
|
, allocBig));
|
|
|
|
p->matchFinderObj = &p->matchFinderMt;
|
|
|
|
p->matchFinderBase.bigHash = (Byte)(
|
|
|
|
(p->dictSize > kBigHashDicLimit && p->matchFinderBase.hashMask >= 0xFFFFFF) ? 1 : 0);
|
|
|
|
MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig))
|
|
|
|
return SZ_ERROR_MEM;
|
|
|
|
p->matchFinderObj = &p->matchFinderBase;
|
|
|
|
MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
|
|
|
|
}
|
|
|
|
|
|
|
|
return SZ_OK;
|
|
|
|
}
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
static void LzmaEnc_Init(CLzmaEnc *p)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
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;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
{
|
|
|
|
for (i = 0; i < kNumOpts; i++)
|
|
|
|
p->opt[i].price = kInfinityPrice;
|
|
|
|
}
|
|
|
|
|
2018-11-08 11:52:06 +00:00
|
|
|
p->additionalOffset = 0;
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
p->pbMask = ((unsigned)1 << p->pb) - 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
p->lpMask = ((UInt32)0x100 << p->lp) - ((unsigned)0x100 >> p->lc);
|
|
|
|
}
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
static void LzmaEnc_InitPrices(CLzmaEnc *p)
|
2018-11-08 11:52:06 +00:00
|
|
|
{
|
|
|
|
if (!p->fastMode)
|
|
|
|
{
|
|
|
|
FillDistancesPrices(p);
|
|
|
|
FillAlignPrices(p);
|
|
|
|
}
|
|
|
|
|
|
|
|
p->lenEnc.tableSize =
|
|
|
|
p->repLenEnc.tableSize =
|
|
|
|
p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;
|
2019-07-15 13:16:24 +00:00
|
|
|
|
|
|
|
p->repLenEncCounter = REP_LEN_COUNT;
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
LenPriceEnc_UpdateTables(&p->lenEnc, (unsigned)1 << p->pb, &p->lenProbs, p->ProbPrices);
|
|
|
|
LenPriceEnc_UpdateTables(&p->repLenEnc, (unsigned)1 << p->pb, &p->repLenProbs, p->ProbPrices);
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
unsigned i;
|
|
|
|
for (i = kEndPosModelIndex / 2; i < kDicLogSizeMax; i++)
|
|
|
|
if (p->dictSize <= ((UInt32)1 << i))
|
|
|
|
break;
|
|
|
|
p->distTableSize = i * 2;
|
|
|
|
|
|
|
|
p->finished = False;
|
|
|
|
p->result = SZ_OK;
|
|
|
|
RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig));
|
|
|
|
LzmaEnc_Init(p);
|
|
|
|
LzmaEnc_InitPrices(p);
|
|
|
|
p->nowPos64 = 0;
|
|
|
|
return SZ_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,
|
|
|
|
ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
p->matchFinderBase.stream = inStream;
|
|
|
|
p->needInit = 1;
|
|
|
|
p->rc.outStream = outStream;
|
|
|
|
return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig);
|
|
|
|
}
|
|
|
|
|
|
|
|
SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp,
|
|
|
|
ISeqInStream *inStream, UInt32 keepWindowSize,
|
|
|
|
ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
p->matchFinderBase.stream = inStream;
|
|
|
|
p->needInit = 1;
|
|
|
|
return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen)
|
|
|
|
{
|
|
|
|
p->matchFinderBase.directInput = 1;
|
|
|
|
p->matchFinderBase.bufferBase = (Byte *)src;
|
|
|
|
p->matchFinderBase.directInputRem = srcLen;
|
|
|
|
}
|
|
|
|
|
|
|
|
SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
|
|
|
|
UInt32 keepWindowSize, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
LzmaEnc_SetInputBuf(p, src, srcLen);
|
|
|
|
p->needInit = 1;
|
|
|
|
|
|
|
|
LzmaEnc_SetDataSize(pp, srcLen);
|
|
|
|
return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
|
|
|
|
}
|
|
|
|
|
|
|
|
void LzmaEnc_Finish(CLzmaEncHandle pp)
|
|
|
|
{
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
if (p->mtMode)
|
|
|
|
MatchFinderMt_ReleaseStream(&p->matchFinderMt);
|
|
|
|
#else
|
|
|
|
UNUSED_VAR(pp);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
typedef struct
|
|
|
|
{
|
|
|
|
ISeqOutStream vt;
|
|
|
|
Byte *data;
|
|
|
|
SizeT rem;
|
2019-07-15 13:16:24 +00:00
|
|
|
BoolInt overflow;
|
2018-11-08 11:52:06 +00:00
|
|
|
} CLzmaEnc_SeqOutStreamBuf;
|
|
|
|
|
|
|
|
static size_t SeqOutStreamBuf_Write(const ISeqOutStream *pp, const void *data, size_t size)
|
|
|
|
{
|
|
|
|
CLzmaEnc_SeqOutStreamBuf *p = CONTAINER_FROM_VTBL(pp, CLzmaEnc_SeqOutStreamBuf, vt);
|
|
|
|
if (p->rem < size)
|
|
|
|
{
|
|
|
|
size = p->rem;
|
|
|
|
p->overflow = True;
|
|
|
|
}
|
|
|
|
memcpy(p->data, data, size);
|
|
|
|
p->rem -= size;
|
|
|
|
p->data += size;
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
/*
|
2018-11-08 11:52:06 +00:00
|
|
|
UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
|
|
|
|
{
|
|
|
|
const CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
|
|
|
|
}
|
2021-05-16 06:51:59 +00:00
|
|
|
*/
|
2018-11-08 11:52:06 +00:00
|
|
|
|
|
|
|
const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
|
|
|
|
{
|
|
|
|
const CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2019-07-15 13:16:24 +00:00
|
|
|
SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, BoolInt reInit,
|
2018-11-08 11:52:06 +00:00
|
|
|
Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
UInt64 nowPos64;
|
|
|
|
SRes res;
|
|
|
|
CLzmaEnc_SeqOutStreamBuf outStream;
|
|
|
|
|
|
|
|
outStream.vt.Write = SeqOutStreamBuf_Write;
|
|
|
|
outStream.data = dest;
|
|
|
|
outStream.rem = *destLen;
|
|
|
|
outStream.overflow = False;
|
|
|
|
|
|
|
|
p->writeEndMark = False;
|
|
|
|
p->finished = False;
|
|
|
|
p->result = SZ_OK;
|
|
|
|
|
|
|
|
if (reInit)
|
|
|
|
LzmaEnc_Init(p);
|
|
|
|
LzmaEnc_InitPrices(p);
|
|
|
|
|
|
|
|
nowPos64 = p->nowPos64;
|
|
|
|
RangeEnc_Init(&p->rc);
|
|
|
|
p->rc.outStream = &outStream.vt;
|
|
|
|
|
|
|
|
if (desiredPackSize == 0)
|
|
|
|
return SZ_ERROR_OUTPUT_EOF;
|
|
|
|
|
|
|
|
res = LzmaEnc_CodeOneBlock(p, desiredPackSize, *unpackSize);
|
|
|
|
|
|
|
|
*unpackSize = (UInt32)(p->nowPos64 - nowPos64);
|
|
|
|
*destLen -= outStream.rem;
|
|
|
|
if (outStream.overflow)
|
|
|
|
return SZ_ERROR_OUTPUT_EOF;
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-05-16 06:51:59 +00:00
|
|
|
MY_NO_INLINE
|
2018-11-08 11:52:06 +00:00
|
|
|
static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
|
|
|
|
{
|
|
|
|
SRes res = SZ_OK;
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
Byte allocaDummy[0x300];
|
|
|
|
allocaDummy[0] = 0;
|
|
|
|
allocaDummy[1] = allocaDummy[0];
|
|
|
|
#endif
|
|
|
|
|
|
|
|
for (;;)
|
|
|
|
{
|
|
|
|
res = LzmaEnc_CodeOneBlock(p, 0, 0);
|
|
|
|
if (res != SZ_OK || p->finished)
|
|
|
|
break;
|
|
|
|
if (progress)
|
|
|
|
{
|
|
|
|
res = ICompressProgress_Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
|
|
|
|
if (res != SZ_OK)
|
|
|
|
{
|
|
|
|
res = SZ_ERROR_PROGRESS;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
LzmaEnc_Finish(p);
|
|
|
|
|
|
|
|
/*
|
|
|
|
if (res == SZ_OK && !Inline_MatchFinder_IsFinishedOK(&p->matchFinderBase))
|
|
|
|
res = SZ_ERROR_FAIL;
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
|
|
|
|
ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig));
|
|
|
|
return LzmaEnc_Encode2((CLzmaEnc *)pp, progress);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
unsigned i;
|
|
|
|
UInt32 dictSize = p->dictSize;
|
|
|
|
if (*size < LZMA_PROPS_SIZE)
|
|
|
|
return SZ_ERROR_PARAM;
|
|
|
|
*size = LZMA_PROPS_SIZE;
|
|
|
|
props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc);
|
|
|
|
|
|
|
|
if (dictSize >= ((UInt32)1 << 22))
|
|
|
|
{
|
2021-05-16 06:51:59 +00:00
|
|
|
const UInt32 kDictMask = ((UInt32)1 << 20) - 1;
|
2018-11-08 11:52:06 +00:00
|
|
|
if (dictSize < (UInt32)0xFFFFFFFF - kDictMask)
|
|
|
|
dictSize = (dictSize + kDictMask) & ~kDictMask;
|
|
|
|
}
|
|
|
|
else for (i = 11; i <= 30; i++)
|
|
|
|
{
|
2021-05-16 06:51:59 +00:00
|
|
|
if (dictSize <= ((UInt32)2 << i)) { dictSize = ((UInt32)2 << i); break; }
|
|
|
|
if (dictSize <= ((UInt32)3 << i)) { dictSize = ((UInt32)3 << i); break; }
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i++)
|
|
|
|
props[1 + i] = (Byte)(dictSize >> (8 * i));
|
|
|
|
return SZ_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
unsigned LzmaEnc_IsWriteEndMark(CLzmaEncHandle pp)
|
|
|
|
{
|
2021-05-16 06:51:59 +00:00
|
|
|
return (unsigned)((CLzmaEnc *)pp)->writeEndMark;
|
2018-11-08 11:52:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
|
|
|
|
int writeEndMark, ICompressProgress *progress, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
SRes res;
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
|
|
|
|
CLzmaEnc_SeqOutStreamBuf outStream;
|
|
|
|
|
|
|
|
outStream.vt.Write = SeqOutStreamBuf_Write;
|
|
|
|
outStream.data = dest;
|
|
|
|
outStream.rem = *destLen;
|
|
|
|
outStream.overflow = False;
|
|
|
|
|
|
|
|
p->writeEndMark = writeEndMark;
|
|
|
|
p->rc.outStream = &outStream.vt;
|
|
|
|
|
|
|
|
res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig);
|
|
|
|
|
|
|
|
if (res == SZ_OK)
|
|
|
|
{
|
|
|
|
res = LzmaEnc_Encode2(p, progress);
|
|
|
|
if (res == SZ_OK && p->nowPos64 != srcLen)
|
|
|
|
res = SZ_ERROR_FAIL;
|
|
|
|
}
|
|
|
|
|
|
|
|
*destLen -= outStream.rem;
|
|
|
|
if (outStream.overflow)
|
|
|
|
return SZ_ERROR_OUTPUT_EOF;
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
|
|
|
|
const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
|
|
|
|
ICompressProgress *progress, ISzAllocPtr alloc, ISzAllocPtr allocBig)
|
|
|
|
{
|
|
|
|
CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc);
|
|
|
|
SRes res;
|
|
|
|
if (!p)
|
|
|
|
return SZ_ERROR_MEM;
|
|
|
|
|
|
|
|
res = LzmaEnc_SetProps(p, props);
|
|
|
|
if (res == SZ_OK)
|
|
|
|
{
|
|
|
|
res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize);
|
|
|
|
if (res == SZ_OK)
|
|
|
|
res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen,
|
|
|
|
writeEndMark, progress, alloc, allocBig);
|
|
|
|
}
|
|
|
|
|
|
|
|
LzmaEnc_Destroy(p, alloc, allocBig);
|
|
|
|
return res;
|
|
|
|
}
|
2021-05-16 06:51:59 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
void LzmaEnc_GetLzThreads(CLzmaEncHandle pp, HANDLE lz_threads[2])
|
|
|
|
{
|
|
|
|
const CLzmaEnc *p = (CLzmaEnc *)pp;
|
|
|
|
lz_threads[0] = p->matchFinderMt.hashSync.thread;
|
|
|
|
lz_threads[1] = p->matchFinderMt.btSync.thread;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
*/
|