mirror of
https://github.com/Xevion/easy7zip.git
synced 2025-12-07 16:07:05 -06:00
15.05
This commit is contained in:
committed by
Kornel Lesiński
parent
0713a3ab80
commit
54490d51d5
164
C/LzFindMt.c
164
C/LzFindMt.c
@@ -1,5 +1,5 @@
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/* LzFindMt.c -- multithreaded Match finder for LZ algorithms
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2014-12-29 : Igor Pavlov : Public domain */
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2015-05-03 : Igor Pavlov : Public domain */
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#include "Precomp.h"
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@@ -7,7 +7,7 @@
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#include "LzFindMt.h"
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void MtSync_Construct(CMtSync *p)
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static void MtSync_Construct(CMtSync *p)
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{
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p->wasCreated = False;
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p->csWasInitialized = False;
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@@ -20,7 +20,7 @@ void MtSync_Construct(CMtSync *p)
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Semaphore_Construct(&p->filledSemaphore);
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}
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void MtSync_GetNextBlock(CMtSync *p)
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static void MtSync_GetNextBlock(CMtSync *p)
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{
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if (p->needStart)
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{
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@@ -48,7 +48,7 @@ void MtSync_GetNextBlock(CMtSync *p)
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/* MtSync_StopWriting must be called if Writing was started */
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void MtSync_StopWriting(CMtSync *p)
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static void MtSync_StopWriting(CMtSync *p)
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{
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UInt32 myNumBlocks = p->numProcessedBlocks;
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if (!Thread_WasCreated(&p->thread) || p->needStart)
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@@ -71,7 +71,7 @@ void MtSync_StopWriting(CMtSync *p)
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p->needStart = True;
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}
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void MtSync_Destruct(CMtSync *p)
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static void MtSync_Destruct(CMtSync *p)
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{
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if (Thread_WasCreated(&p->thread))
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{
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@@ -134,20 +134,20 @@ void MtSync_Init(CMtSync *p) { p->needStart = True; }
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#define kMtMaxValForNormalize 0xFFFFFFFF
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#define DEF_GetHeads2(name, v, action) \
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static void GetHeads ## name(const Byte *p, UInt32 pos, \
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UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads, const UInt32 *crc) \
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{ action; for (; numHeads != 0; numHeads--) { \
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const UInt32 value = (v); p++; *heads++ = pos - hash[value]; hash[value] = pos++; } }
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static void GetHeads ## name(const Byte *p, UInt32 pos, \
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UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads, const UInt32 *crc) \
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{ action; for (; numHeads != 0; numHeads--) { \
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const UInt32 value = (v); p++; *heads++ = pos - hash[value]; hash[value] = pos++; } }
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#define DEF_GetHeads(name, v) DEF_GetHeads2(name, v, ;)
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DEF_GetHeads2(2, (p[0] | ((UInt32)p[1] << 8)), hashMask = hashMask; crc = crc; )
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DEF_GetHeads2(2, (p[0] | ((UInt32)p[1] << 8)), UNUSED_VAR(hashMask); UNUSED_VAR(crc); )
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DEF_GetHeads(3, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8)) & hashMask)
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DEF_GetHeads(4, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (crc[p[3]] << 5)) & hashMask)
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DEF_GetHeads(4b, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ ((UInt32)p[3] << 16)) & hashMask)
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/* DEF_GetHeads(5, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (crc[p[3]] << 5) ^ (crc[p[4]] << 3)) & hashMask) */
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void HashThreadFunc(CMatchFinderMt *mt)
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static void HashThreadFunc(CMatchFinderMt *mt)
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{
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CMtSync *p = &mt->hashSync;
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for (;;)
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@@ -192,7 +192,7 @@ void HashThreadFunc(CMatchFinderMt *mt)
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{
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UInt32 subValue = (mf->pos - mf->historySize - 1);
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MatchFinder_ReduceOffsets(mf, subValue);
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MatchFinder_Normalize3(subValue, mf->hash + mf->fixedHashSize, mf->hashMask + 1);
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MatchFinder_Normalize3(subValue, mf->hash + mf->fixedHashSize, (size_t)mf->hashMask + 1);
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}
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{
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UInt32 *heads = mt->hashBuf + ((numProcessedBlocks++) & kMtHashNumBlocksMask) * kMtHashBlockSize;
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@@ -217,7 +217,7 @@ void HashThreadFunc(CMatchFinderMt *mt)
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}
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}
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void MatchFinderMt_GetNextBlock_Hash(CMatchFinderMt *p)
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static void MatchFinderMt_GetNextBlock_Hash(CMatchFinderMt *p)
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{
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MtSync_GetNextBlock(&p->hashSync);
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p->hashBufPosLimit = p->hashBufPos = ((p->hashSync.numProcessedBlocks - 1) & kMtHashNumBlocksMask) * kMtHashBlockSize;
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@@ -233,7 +233,7 @@ void MatchFinderMt_GetNextBlock_Hash(CMatchFinderMt *p)
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#define NO_INLINE MY_FAST_CALL
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Int32 NO_INLINE GetMatchesSpecN(UInt32 lenLimit, UInt32 pos, const Byte *cur, CLzRef *son,
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static Int32 NO_INLINE GetMatchesSpecN(UInt32 lenLimit, UInt32 pos, const Byte *cur, CLzRef *son,
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UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
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UInt32 *_distances, UInt32 _maxLen, const UInt32 *hash, Int32 limit, UInt32 size, UInt32 *posRes)
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{
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@@ -310,12 +310,14 @@ Int32 NO_INLINE GetMatchesSpecN(UInt32 lenLimit, UInt32 pos, const Byte *cur, CL
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#endif
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void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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static void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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{
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UInt32 numProcessed = 0;
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UInt32 curPos = 2;
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UInt32 limit = kMtBtBlockSize - (p->matchMaxLen * 2);
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distances[1] = p->hashNumAvail;
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while (curPos < limit)
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{
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if (p->hashBufPos == p->hashBufPosLimit)
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@@ -324,9 +326,11 @@ void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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distances[1] = numProcessed + p->hashNumAvail;
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if (p->hashNumAvail >= p->numHashBytes)
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continue;
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distances[0] = curPos + p->hashNumAvail;
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distances += curPos;
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for (; p->hashNumAvail != 0; p->hashNumAvail--)
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distances[curPos++] = 0;
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break;
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*distances++ = 0;
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return;
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}
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{
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UInt32 size = p->hashBufPosLimit - p->hashBufPos;
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@@ -343,13 +347,14 @@ void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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if (size2 < size)
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size = size2;
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}
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#ifndef MFMT_GM_INLINE
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while (curPos < limit && size-- != 0)
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{
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UInt32 *startDistances = distances + curPos;
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UInt32 num = (UInt32)(GetMatchesSpec1(lenLimit, pos - p->hashBuf[p->hashBufPos++],
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pos, p->buffer, p->son, cyclicBufferPos, p->cyclicBufferSize, p->cutValue,
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startDistances + 1, p->numHashBytes - 1) - startDistances);
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pos, p->buffer, p->son, cyclicBufferPos, p->cyclicBufferSize, p->cutValue,
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startDistances + 1, p->numHashBytes - 1) - startDistances);
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*startDistances = num - 1;
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curPos += num;
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cyclicBufferPos++;
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@@ -360,7 +365,7 @@ void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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{
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UInt32 posRes;
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curPos = limit - GetMatchesSpecN(lenLimit, pos, p->buffer, p->son, cyclicBufferPos, p->cyclicBufferSize, p->cutValue,
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distances + curPos, p->numHashBytes - 1, p->hashBuf + p->hashBufPos, (Int32)(limit - curPos) , size, &posRes);
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distances + curPos, p->numHashBytes - 1, p->hashBuf + p->hashBufPos, (Int32)(limit - curPos), size, &posRes);
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p->hashBufPos += posRes - pos;
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cyclicBufferPos += posRes - pos;
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p->buffer += posRes - pos;
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@@ -376,10 +381,11 @@ void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
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p->cyclicBufferPos = cyclicBufferPos;
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}
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}
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distances[0] = curPos;
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}
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void BtFillBlock(CMatchFinderMt *p, UInt32 globalBlockIndex)
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static void BtFillBlock(CMatchFinderMt *p, UInt32 globalBlockIndex)
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{
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CMtSync *sync = &p->hashSync;
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if (!sync->needStart)
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@@ -393,7 +399,7 @@ void BtFillBlock(CMatchFinderMt *p, UInt32 globalBlockIndex)
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if (p->pos > kMtMaxValForNormalize - kMtBtBlockSize)
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{
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UInt32 subValue = p->pos - p->cyclicBufferSize;
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MatchFinder_Normalize3(subValue, p->son, p->cyclicBufferSize * 2);
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MatchFinder_Normalize3(subValue, p->son, (size_t)p->cyclicBufferSize * 2);
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p->pos -= subValue;
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}
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@@ -432,15 +438,15 @@ void BtThreadFunc(CMatchFinderMt *mt)
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void MatchFinderMt_Construct(CMatchFinderMt *p)
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{
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p->hashBuf = 0;
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p->hashBuf = NULL;
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MtSync_Construct(&p->hashSync);
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MtSync_Construct(&p->btSync);
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}
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void MatchFinderMt_FreeMem(CMatchFinderMt *p, ISzAlloc *alloc)
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static void MatchFinderMt_FreeMem(CMatchFinderMt *p, ISzAlloc *alloc)
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{
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alloc->Free(alloc, p->hashBuf);
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p->hashBuf = 0;
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p->hashBuf = NULL;
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}
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void MatchFinderMt_Destruct(CMatchFinderMt *p, ISzAlloc *alloc)
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@@ -457,9 +463,11 @@ static THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE HashThreadFunc2(void *p) { Has
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static THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE BtThreadFunc2(void *p)
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{
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Byte allocaDummy[0x180];
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allocaDummy[0] = 0;
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allocaDummy[1] = allocaDummy[0];
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BtThreadFunc((CMatchFinderMt *)p);
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unsigned i = 0;
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for (i = 0; i < 16; i++)
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allocaDummy[i] = (Byte)0;
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if (allocaDummy[0] == 0)
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BtThreadFunc((CMatchFinderMt *)p);
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return 0;
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}
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@@ -470,10 +478,10 @@ SRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddB
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p->historySize = historySize;
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if (kMtBtBlockSize <= matchMaxLen * 4)
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return SZ_ERROR_PARAM;
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if (p->hashBuf == 0)
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if (!p->hashBuf)
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{
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p->hashBuf = (UInt32 *)alloc->Alloc(alloc, (kHashBufferSize + kBtBufferSize) * sizeof(UInt32));
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if (p->hashBuf == 0)
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if (!p->hashBuf)
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return SZ_ERROR_MEM;
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p->btBuf = p->hashBuf + kHashBufferSize;
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}
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@@ -519,13 +527,13 @@ void MatchFinderMt_ReleaseStream(CMatchFinderMt *p)
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/* p->MatchFinder->ReleaseStream(); */
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}
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void MatchFinderMt_Normalize(CMatchFinderMt *p)
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static void MatchFinderMt_Normalize(CMatchFinderMt *p)
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{
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MatchFinder_Normalize3(p->lzPos - p->historySize - 1, p->hash, p->fixedHashSize);
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p->lzPos = p->historySize + 1;
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}
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void MatchFinderMt_GetNextBlock_Bt(CMatchFinderMt *p)
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static void MatchFinderMt_GetNextBlock_Bt(CMatchFinderMt *p)
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{
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UInt32 blockIndex;
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MtSync_GetNextBlock(&p->btSync);
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@@ -537,34 +545,29 @@ void MatchFinderMt_GetNextBlock_Bt(CMatchFinderMt *p)
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MatchFinderMt_Normalize(p);
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}
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const Byte * MatchFinderMt_GetPointerToCurrentPos(CMatchFinderMt *p)
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static const Byte * MatchFinderMt_GetPointerToCurrentPos(CMatchFinderMt *p)
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{
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return p->pointerToCurPos;
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}
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#define GET_NEXT_BLOCK_IF_REQUIRED if (p->btBufPos == p->btBufPosLimit) MatchFinderMt_GetNextBlock_Bt(p);
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UInt32 MatchFinderMt_GetNumAvailableBytes(CMatchFinderMt *p)
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static UInt32 MatchFinderMt_GetNumAvailableBytes(CMatchFinderMt *p)
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{
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GET_NEXT_BLOCK_IF_REQUIRED;
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return p->btNumAvailBytes;
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}
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Byte MatchFinderMt_GetIndexByte(CMatchFinderMt *p, Int32 index)
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static UInt32 * MixMatches2(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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{
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return p->pointerToCurPos[index];
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}
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UInt32 * MixMatches2(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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{
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UInt32 hash2Value, curMatch2;
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UInt32 h2, curMatch2;
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UInt32 *hash = p->hash;
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const Byte *cur = p->pointerToCurPos;
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UInt32 lzPos = p->lzPos;
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MT_HASH2_CALC
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curMatch2 = hash[hash2Value];
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hash[hash2Value] = lzPos;
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curMatch2 = hash[h2];
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hash[h2] = lzPos;
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if (curMatch2 >= matchMinPos)
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if (cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
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@@ -572,23 +575,23 @@ UInt32 * MixMatches2(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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*distances++ = 2;
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*distances++ = lzPos - curMatch2 - 1;
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}
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return distances;
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}
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UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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static UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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{
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UInt32 hash2Value, hash3Value, curMatch2, curMatch3;
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UInt32 h2, h3, curMatch2, curMatch3;
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UInt32 *hash = p->hash;
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const Byte *cur = p->pointerToCurPos;
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UInt32 lzPos = p->lzPos;
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MT_HASH3_CALC
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curMatch2 = hash[ hash2Value];
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curMatch3 = hash[kFix3HashSize + hash3Value];
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curMatch2 = hash[ h2];
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curMatch3 = hash[kFix3HashSize + h3];
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hash[ hash2Value] =
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hash[kFix3HashSize + hash3Value] =
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lzPos;
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hash[ h2] = lzPos;
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hash[kFix3HashSize + h3] = lzPos;
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if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
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{
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@@ -601,43 +604,45 @@ UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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distances[0] = 2;
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distances += 2;
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}
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if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
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{
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*distances++ = 3;
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*distances++ = lzPos - curMatch3 - 1;
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}
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return distances;
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}
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/*
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UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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static UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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{
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UInt32 hash2Value, hash3Value, hash4Value, curMatch2, curMatch3, curMatch4;
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UInt32 h2, h3, h4, curMatch2, curMatch3, curMatch4;
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UInt32 *hash = p->hash;
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const Byte *cur = p->pointerToCurPos;
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UInt32 lzPos = p->lzPos;
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MT_HASH4_CALC
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curMatch2 = hash[ hash2Value];
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curMatch3 = hash[kFix3HashSize + hash3Value];
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curMatch4 = hash[kFix4HashSize + hash4Value];
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curMatch2 = hash[ h2];
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curMatch3 = hash[kFix3HashSize + h3];
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curMatch4 = hash[kFix4HashSize + h4];
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hash[ hash2Value] =
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hash[kFix3HashSize + hash3Value] =
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hash[kFix4HashSize + hash4Value] =
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lzPos;
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hash[ h2] = lzPos;
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hash[kFix3HashSize + h3] = lzPos;
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hash[kFix4HashSize + h4] = lzPos;
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if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
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{
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distances[1] = lzPos - curMatch2 - 1;
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if (cur[(ptrdiff_t)curMatch2 - lzPos + 2] == cur[2])
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{
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distances[0] = (cur[(ptrdiff_t)curMatch2 - lzPos + 3] == cur[3]) ? 4 : 3;
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distances[0] = (cur[(ptrdiff_t)curMatch2 - lzPos + 3] == cur[3]) ? 4 : 3;
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return distances + 2;
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}
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distances[0] = 2;
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distances += 2;
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}
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if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
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{
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distances[1] = lzPos - curMatch3 - 1;
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@@ -659,13 +664,14 @@ UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
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*distances++ = 4;
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*distances++ = lzPos - curMatch4 - 1;
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}
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return distances;
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}
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*/
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#define INCREASE_LZ_POS p->lzPos++; p->pointerToCurPos++;
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UInt32 MatchFinderMt2_GetMatches(CMatchFinderMt *p, UInt32 *distances)
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static UInt32 MatchFinderMt2_GetMatches(CMatchFinderMt *p, UInt32 *distances)
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{
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const UInt32 *btBuf = p->btBuf + p->btBufPos;
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UInt32 len = *btBuf++;
|
||||
@@ -683,7 +689,7 @@ UInt32 MatchFinderMt2_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
return len;
|
||||
}
|
||||
|
||||
UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
static UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
{
|
||||
const UInt32 *btBuf = p->btBuf + p->btBufPos;
|
||||
UInt32 len = *btBuf++;
|
||||
@@ -691,6 +697,7 @@ UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
|
||||
if (len == 0)
|
||||
{
|
||||
/* change for bt5 ! */
|
||||
if (p->btNumAvailBytes-- >= 4)
|
||||
len = (UInt32)(p->MixMatchesFunc(p, p->lzPos - p->historySize, distances) - (distances));
|
||||
}
|
||||
@@ -706,7 +713,7 @@ UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
*distances2++ = *btBuf++;
|
||||
}
|
||||
while ((len -= 2) != 0);
|
||||
len = (UInt32)(distances2 - (distances));
|
||||
len = (UInt32)(distances2 - (distances));
|
||||
}
|
||||
INCREASE_LZ_POS
|
||||
return len;
|
||||
@@ -716,41 +723,41 @@ UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
#define SKIP_HEADER_MT(n) SKIP_HEADER2_MT if (p->btNumAvailBytes-- >= (n)) { const Byte *cur = p->pointerToCurPos; UInt32 *hash = p->hash;
|
||||
#define SKIP_FOOTER_MT } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while (--num != 0);
|
||||
|
||||
void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
static void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER2_MT { p->btNumAvailBytes--;
|
||||
SKIP_FOOTER_MT
|
||||
}
|
||||
|
||||
void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
static void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER_MT(2)
|
||||
UInt32 hash2Value;
|
||||
UInt32 h2;
|
||||
MT_HASH2_CALC
|
||||
hash[hash2Value] = p->lzPos;
|
||||
hash[h2] = p->lzPos;
|
||||
SKIP_FOOTER_MT
|
||||
}
|
||||
|
||||
void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
static void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER_MT(3)
|
||||
UInt32 hash2Value, hash3Value;
|
||||
UInt32 h2, h3;
|
||||
MT_HASH3_CALC
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
hash[ hash2Value] =
|
||||
hash[kFix3HashSize + h3] =
|
||||
hash[ h2] =
|
||||
p->lzPos;
|
||||
SKIP_FOOTER_MT
|
||||
}
|
||||
|
||||
/*
|
||||
void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
static void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER_MT(4)
|
||||
UInt32 hash2Value, hash3Value, hash4Value;
|
||||
UInt32 h2, h3, h4;
|
||||
MT_HASH4_CALC
|
||||
hash[kFix4HashSize + hash4Value] =
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
hash[ hash2Value] =
|
||||
hash[kFix4HashSize + h4] =
|
||||
hash[kFix3HashSize + h3] =
|
||||
hash[ h2] =
|
||||
p->lzPos;
|
||||
SKIP_FOOTER_MT
|
||||
}
|
||||
@@ -759,11 +766,11 @@ void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable)
|
||||
{
|
||||
vTable->Init = (Mf_Init_Func)MatchFinderMt_Init;
|
||||
vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinderMt_GetIndexByte;
|
||||
vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinderMt_GetNumAvailableBytes;
|
||||
vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinderMt_GetPointerToCurrentPos;
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)MatchFinderMt_GetMatches;
|
||||
switch(p->MatchFinder->numHashBytes)
|
||||
|
||||
switch (p->MatchFinder->numHashBytes)
|
||||
{
|
||||
case 2:
|
||||
p->GetHeadsFunc = GetHeads2;
|
||||
@@ -779,7 +786,6 @@ void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable)
|
||||
default:
|
||||
/* case 4: */
|
||||
p->GetHeadsFunc = p->MatchFinder->bigHash ? GetHeads4b : GetHeads4;
|
||||
/* p->GetHeadsFunc = GetHeads4; */
|
||||
p->MixMatchesFunc = (Mf_Mix_Matches)MixMatches3;
|
||||
vTable->Skip = (Mf_Skip_Func)MatchFinderMt3_Skip;
|
||||
break;
|
||||
|
||||
Reference in New Issue
Block a user