diff options
Diffstat (limited to 'src/libs/7zip/win/C/LzmaEnc.c')
-rw-r--r-- | src/libs/7zip/win/C/LzmaEnc.c | 80 |
1 files changed, 45 insertions, 35 deletions
diff --git a/src/libs/7zip/win/C/LzmaEnc.c b/src/libs/7zip/win/C/LzmaEnc.c index cf131388a..bf3cc2ddb 100644 --- a/src/libs/7zip/win/C/LzmaEnc.c +++ b/src/libs/7zip/win/C/LzmaEnc.c @@ -1,5 +1,7 @@ /* LzmaEnc.c -- LZMA Encoder -2010-04-16 : Igor Pavlov : Public domain */ +2014-12-29 : Igor Pavlov : Public domain */ + +#include "Precomp.h" #include <string.h> @@ -18,7 +20,7 @@ #endif #ifdef SHOW_STAT -static int ttt = 0; +static unsigned g_STAT_OFFSET = 0; #endif #define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1) @@ -46,6 +48,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p) { p->level = 5; p->dictSize = p->mc = 0; + p->reduceSize = (UInt64)(Int64)-1; p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1; p->writeEndMark = 0; } @@ -56,6 +59,15 @@ void LzmaEncProps_Normalize(CLzmaEncProps *p) if (level < 0) level = 5; p->level = level; if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26))); + if (p->dictSize > p->reduceSize) + { + unsigned i; + for (i = 11; i <= 30; i++) + { + if ((UInt32)p->reduceSize <= ((UInt32)2 << i)) { p->dictSize = ((UInt32)2 << i); break; } + if ((UInt32)p->reduceSize <= ((UInt32)3 << i)) { p->dictSize = ((UInt32)3 << i); break; } + } + } if (p->lc < 0) p->lc = 3; if (p->lp < 0) p->lp = 0; if (p->pb < 0) p->pb = 2; @@ -109,7 +121,7 @@ void LzmaEnc_FastPosInit(Byte *g_FastPos) int c = 2, slotFast; g_FastPos[0] = 0; g_FastPos[1] = 1; - + for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++) { UInt32 k = (1 << ((slotFast >> 1) - 1)); @@ -246,7 +258,7 @@ typedef struct CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; CLzmaProb posAlignEncoder[1 << kNumAlignBits]; - + CLenPriceEnc lenEnc; CLenPriceEnc repLenEnc; @@ -269,7 +281,7 @@ typedef struct #ifndef _7ZIP_ST Byte pad[128]; #endif - + UInt32 optimumEndIndex; UInt32 optimumCurrentIndex; @@ -277,7 +289,7 @@ typedef struct UInt32 numPairs; UInt32 numAvail; COptimal opt[kNumOpts]; - + #ifndef LZMA_LOG_BSR Byte g_FastPos[1 << kNumLogBits]; #endif @@ -311,14 +323,14 @@ typedef struct CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits]; CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex]; CLzmaProb posAlignEncoder[1 << kNumAlignBits]; - + CLenPriceEnc lenEnc; CLenPriceEnc repLenEnc; unsigned lclp; Bool fastMode; - + CRangeEnc rc; Bool writeEndMark; @@ -329,7 +341,6 @@ typedef struct SRes result; UInt32 dictSize; - UInt32 matchFinderCycles; int needInit; @@ -398,7 +409,6 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2) props.dictSize > ((UInt32)1 << kDicLogSizeMaxCompress) || props.dictSize > ((UInt32)1 << 30)) return SZ_ERROR_PARAM; p->dictSize = props.dictSize; - p->matchFinderCycles = props.mc; { unsigned fb = props.fb; if (fb < 5) @@ -508,7 +518,7 @@ static void RangeEnc_FlushStream(CRangeEnc *p) static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p) { - if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0) + if ((UInt32)p->low < (UInt32)0xFF000000 || (unsigned)(p->low >> 32) != 0) { Byte temp = p->cache; do @@ -534,7 +544,7 @@ static void RangeEnc_FlushData(CRangeEnc *p) RangeEnc_ShiftLow(p); } -static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits) +static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, unsigned numBits) { do { @@ -803,9 +813,10 @@ static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 static void MovePos(CLzmaEnc *p, UInt32 num) { #ifdef SHOW_STAT - ttt += num; + g_STAT_OFFSET += num; printf("\n MovePos %d", num); #endif + if (num != 0) { p->additionalOffset += num; @@ -818,15 +829,17 @@ static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes) UInt32 lenRes = 0, numPairs; p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches); + #ifdef SHOW_STAT - printf("\n i = %d numPairs = %d ", ttt, numPairs / 2); - ttt++; + printf("\n i = %d numPairs = %d ", g_STAT_OFFSET, numPairs / 2); + g_STAT_OFFSET++; { UInt32 i; for (i = 0; i < numPairs; i += 2) printf("%2d %6d | ", p->matches[i], p->matches[i + 1]); } #endif + if (numPairs > 0) { lenRes = p->matches[numPairs - 2]; @@ -909,10 +922,10 @@ static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur) { UInt32 posPrev = posMem; UInt32 backCur = backMem; - + backMem = p->opt[posPrev].backPrev; posMem = p->opt[posPrev].posPrev; - + p->opt[posPrev].backPrev = backCur; p->opt[posPrev].posPrev = cur; cur = posPrev; @@ -943,7 +956,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) return lenRes; } p->optimumCurrentIndex = p->optimumEndIndex = 0; - + if (p->additionalOffset == 0) mainLen = ReadMatchDistances(p, &numPairs); else @@ -1241,7 +1254,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]); repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]); - + if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0)) { UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState); @@ -1303,7 +1316,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) } } } - + startLen = 2; /* speed optimization */ { UInt32 repIndex; @@ -1334,10 +1347,10 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) } while (--lenTest >= 2); lenTest = lenTestTemp; - + if (repIndex == 0) startLen = lenTest + 1; - + /* if (_maxMode) */ { UInt32 lenTest2 = lenTest + 1; @@ -1361,7 +1374,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) nextRepMatchPrice = curAndLenCharPrice + GET_PRICE_1(p->isMatch[state2][posStateNext]) + GET_PRICE_1(p->isRep[state2]); - + /* for (; lenTest2 >= 2; lenTest2--) */ { UInt32 curAndLenPrice; @@ -1416,7 +1429,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) curAndLenPrice += p->distancesPrices[lenToPosState][curBack]; else curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[curBack & kAlignMask]; - + opt = &p->opt[cur + lenTest]; if (curAndLenPrice < opt->price) { @@ -1450,7 +1463,7 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes) nextRepMatchPrice = curAndLenCharPrice + GET_PRICE_1(p->isMatch[state2][posStateNext]) + GET_PRICE_1(p->isRep[state2]); - + /* for (; lenTest2 >= 2; lenTest2--) */ { UInt32 offset = cur + lenTest + 1 + lenTest2; @@ -1562,7 +1575,7 @@ static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes) MovePos(p, repLen - 1); return repLen; } - + if (mainLen < 2 || numAvail <= 2) return 1; @@ -1576,7 +1589,7 @@ static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes) (p->longestMatchLength + 1 >= mainLen && mainLen >= 3 && ChangePair(newDistance, mainDist))) return 1; } - + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1; for (i = 0; i < LZMA_NUM_REPS; i++) { @@ -1837,7 +1850,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize pos -= LZMA_NUM_REPS; GetPosSlot(pos, posSlot); RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot); - + if (posSlot >= kStartPosModelIndex) { UInt32 footerBits = ((posSlot >> 1) - 1); @@ -1897,12 +1910,10 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig) { UInt32 beforeSize = kNumOpts; - Bool btMode; if (!RangeEnc_Alloc(&p->rc, alloc)) return SZ_ERROR_MEM; - btMode = (p->matchFinderBase.btMode != 0); #ifndef _7ZIP_ST - p->mtMode = (p->multiThread && !p->fastMode && btMode); + p->mtMode = (p->multiThread && !p->fastMode && (p->matchFinderBase.btMode != 0)); #endif { @@ -2142,7 +2153,7 @@ SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, p->rc.outStream = &outStream.funcTable; res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize); - + *unpackSize = (UInt32)(p->nowPos64 - nowPos64); *destLen -= outStream.rem; if (outStream.overflow) @@ -2157,9 +2168,8 @@ static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress) #ifndef _7ZIP_ST Byte allocaDummy[0x300]; - int i = 0; - for (i = 0; i < 16; i++) - allocaDummy[i] = (Byte)i; + allocaDummy[0] = 0; + allocaDummy[1] = allocaDummy[0]; #endif for (;;) |