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-rwxr-xr-xdepends/lzma/pavlov/LzFind.c779
1 files changed, 0 insertions, 779 deletions
diff --git a/depends/lzma/pavlov/LzFind.c b/depends/lzma/pavlov/LzFind.c
deleted file mode 100755
index 75003ac1..00000000
--- a/depends/lzma/pavlov/LzFind.c
+++ /dev/null
@@ -1,779 +0,0 @@
-/* LzFind.c -- Match finder for LZ algorithms
-2008-10-04 : Igor Pavlov : Public domain */
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "LzFind.h"
-#include "LzHash.h"
-
-#define kEmptyHashValue 0
-#define kMaxValForNormalize ((uint32_t)0xFFFFFFFF)
-#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
-#define kNormalizeMask (~(kNormalizeStepMin - 1))
-#define kMaxHistorySize ((uint32_t)3 << 30)
-
-#define kStartMaxLen 3
-
-static void LzInWindow_Free(CMatchFinder *p)
-{
- if (!p->directInput)
- {
- free(p->bufferBase);
- p->bufferBase = 0;
- }
-}
-
-/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
-
-static int LzInWindow_Create(CMatchFinder *p, uint32_t keepSizeReserv)
-{
- uint32_t blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
- if (p->directInput)
- {
- p->blockSize = blockSize;
- return 1;
- }
- if (p->bufferBase == 0 || p->blockSize != blockSize)
- {
- LzInWindow_Free(p);
- p->blockSize = blockSize;
- p->bufferBase = (uint8_t *)malloc((size_t)blockSize);
- }
- return (p->bufferBase != 0);
-}
-
-uint8_t *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p)
-{
- return p->buffer;
-}
-uint8_t MatchFinder_GetIndexByte(CMatchFinder *p, int32_t index)
-{
- return p->buffer[index];
-}
-
-uint32_t MatchFinder_GetNumAvailableBytes(CMatchFinder *p)
-{
- return p->streamPos - p->pos;
-}
-
-void MatchFinder_ReduceOffsets(CMatchFinder *p, uint32_t subValue)
-{
- p->posLimit -= subValue;
- p->pos -= subValue;
- p->streamPos -= subValue;
-}
-
-static void MatchFinder_ReadBlock(CMatchFinder *p)
-{
- if (p->streamEndWasReached || p->result != SZ_OK)
- return;
- for (;;)
- {
- uint8_t *dest = p->buffer + (p->streamPos - p->pos);
- size_t size = (p->bufferBase + p->blockSize - dest);
- if (size == 0)
- return;
- p->result = p->stream->Read(p->stream, dest, &size);
- if (p->result != SZ_OK)
- return;
- if (size == 0)
- {
- p->streamEndWasReached = 1;
- return;
- }
- p->streamPos += (uint32_t)size;
- if (p->streamPos - p->pos > p->keepSizeAfter)
- return;
- }
-}
-
-void MatchFinder_MoveBlock(CMatchFinder *p)
-{
- memmove(p->bufferBase, p->buffer - p->keepSizeBefore,
- (size_t)(p->streamPos - p->pos + p->keepSizeBefore));
- p->buffer = p->bufferBase + p->keepSizeBefore;
-}
-
-int MatchFinder_NeedMove(CMatchFinder *p)
-{
- /* if (p->streamEndWasReached) return 0; */
- return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
-}
-
-void MatchFinder_ReadIfRequired(CMatchFinder *p)
-{
- if (p->streamEndWasReached)
- return;
- if (p->keepSizeAfter >= p->streamPos - p->pos)
- MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
-{
- if (MatchFinder_NeedMove(p))
- MatchFinder_MoveBlock(p);
- MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
-{
- p->cutValue = 32;
- p->btMode = 1;
- p->numHashBytes = 4;
- /* p->skipModeBits = 0; */
- p->directInput = 0;
- p->bigHash = 0;
-}
-
-#define kCrcPoly 0xEDB88320
-
-void MatchFinder_Construct(CMatchFinder *p)
-{
- uint32_t i;
- p->bufferBase = 0;
- p->directInput = 0;
- p->hash = 0;
- MatchFinder_SetDefaultSettings(p);
-
- for (i = 0; i < 256; i++)
- {
- uint32_t r = i;
- int j;
- for (j = 0; j < 8; j++)
- r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
- p->crc[i] = r;
- }
-}
-
-static void MatchFinder_FreeThisClassMemory(CMatchFinder *p)
-{
- free(p->hash);
- p->hash = 0;
-}
-
-void MatchFinder_Free(CMatchFinder *p)
-{
- MatchFinder_FreeThisClassMemory(p);
- LzInWindow_Free(p);
-}
-
-static CLzRef *AllocRefs(uint32_t num)
-{
- size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
- if (sizeInBytes / sizeof(CLzRef) != num)
- return 0;
- return (CLzRef *)malloc(sizeInBytes);
-}
-
-int MatchFinder_Create(CMatchFinder *p, uint32_t historySize, uint32_t keepAddBufferBefore,
- uint32_t matchMaxLen, uint32_t keepAddBufferAfter)
-{
- uint32_t sizeReserv;
- if (historySize > kMaxHistorySize)
- {
- MatchFinder_Free(p);
- return 0;
- }
- sizeReserv = historySize >> 1;
- if (historySize > ((uint32_t)2 << 30))
- sizeReserv = historySize >> 2;
- sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
-
- p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
- p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
- /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary
- * using */
- if (LzInWindow_Create(p, sizeReserv))
- {
- uint32_t newCyclicBufferSize = (historySize /* >> p->skipModeBits */) + 1;
- uint32_t hs;
- p->matchMaxLen = matchMaxLen;
- {
- p->fixedHashSize = 0;
- if (p->numHashBytes == 2)
- hs = (1 << 16) - 1;
- else
- {
- hs = historySize - 1;
- hs |= (hs >> 1);
- hs |= (hs >> 2);
- hs |= (hs >> 4);
- hs |= (hs >> 8);
- hs >>= 1;
- /* hs >>= p->skipModeBits; */
- hs |= 0xFFFF; /* don't change it! It's required for Deflate */
- if (hs > (1 << 24))
- {
- if (p->numHashBytes == 3)
- hs = (1 << 24) - 1;
- else
- hs >>= 1;
- }
- }
- p->hashMask = hs;
- hs++;
- if (p->numHashBytes > 2)
- p->fixedHashSize += kHash2Size;
- if (p->numHashBytes > 3)
- p->fixedHashSize += kHash3Size;
- if (p->numHashBytes > 4)
- p->fixedHashSize += kHash4Size;
- hs += p->fixedHashSize;
- }
-
- {
- uint32_t prevSize = p->hashSizeSum + p->numSons;
- uint32_t newSize;
- p->historySize = historySize;
- p->hashSizeSum = hs;
- p->cyclicBufferSize = newCyclicBufferSize;
- p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
- newSize = p->hashSizeSum + p->numSons;
- if (p->hash != 0 && prevSize == newSize)
- return 1;
- MatchFinder_FreeThisClassMemory(p);
- p->hash = AllocRefs(newSize);
- if (p->hash != 0)
- {
- p->son = p->hash + p->hashSizeSum;
- return 1;
- }
- }
- }
- MatchFinder_Free(p);
- return 0;
-}
-
-static void MatchFinder_SetLimits(CMatchFinder *p)
-{
- uint32_t limit = kMaxValForNormalize - p->pos;
- uint32_t limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
- if (limit2 < limit)
- limit = limit2;
- limit2 = p->streamPos - p->pos;
- if (limit2 <= p->keepSizeAfter)
- {
- if (limit2 > 0)
- limit2 = 1;
- }
- else
- limit2 -= p->keepSizeAfter;
- if (limit2 < limit)
- limit = limit2;
- {
- uint32_t lenLimit = p->streamPos - p->pos;
- if (lenLimit > p->matchMaxLen)
- lenLimit = p->matchMaxLen;
- p->lenLimit = lenLimit;
- }
- p->posLimit = p->pos + limit;
-}
-
-void MatchFinder_Init(CMatchFinder *p)
-{
- uint32_t i;
- for (i = 0; i < p->hashSizeSum; i++)
- p->hash[i] = kEmptyHashValue;
- p->cyclicBufferPos = 0;
- p->buffer = p->bufferBase;
- p->pos = p->streamPos = p->cyclicBufferSize;
- p->result = SZ_OK;
- p->streamEndWasReached = 0;
- MatchFinder_ReadBlock(p);
- MatchFinder_SetLimits(p);
-}
-
-static uint32_t MatchFinder_GetSubValue(CMatchFinder *p)
-{
- return (p->pos - p->historySize - 1) & kNormalizeMask;
-}
-
-void MatchFinder_Normalize3(uint32_t subValue, CLzRef *items, uint32_t numItems)
-{
- uint32_t i;
- for (i = 0; i < numItems; i++)
- {
- uint32_t value = items[i];
- if (value <= subValue)
- value = kEmptyHashValue;
- else
- value -= subValue;
- items[i] = value;
- }
-}
-
-static void MatchFinder_Normalize(CMatchFinder *p)
-{
- uint32_t subValue = MatchFinder_GetSubValue(p);
- MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
- MatchFinder_ReduceOffsets(p, subValue);
-}
-
-static void MatchFinder_CheckLimits(CMatchFinder *p)
-{
- if (p->pos == kMaxValForNormalize)
- MatchFinder_Normalize(p);
- if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
- MatchFinder_CheckAndMoveAndRead(p);
- if (p->cyclicBufferPos == p->cyclicBufferSize)
- p->cyclicBufferPos = 0;
- MatchFinder_SetLimits(p);
-}
-
-static uint32_t *Hc_GetMatchesSpec(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
- const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
- uint32_t _cyclicBufferSize, uint32_t cutValue,
- uint32_t *distances, uint32_t maxLen)
-{
- son[_cyclicBufferPos] = curMatch;
- for (;;)
- {
- uint32_t delta = pos - curMatch;
- if (cutValue-- == 0 || delta >= _cyclicBufferSize)
- return distances;
- {
- const uint8_t *pb = cur - delta;
- curMatch = son[_cyclicBufferPos - delta +
- ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
- if (pb[maxLen] == cur[maxLen] && *pb == *cur)
- {
- uint32_t len = 0;
- while (++len != lenLimit)
- if (pb[len] != cur[len])
- break;
- if (maxLen < len)
- {
- *distances++ = maxLen = len;
- *distances++ = delta - 1;
- if (len == lenLimit)
- return distances;
- }
- }
- }
- }
-}
-
-uint32_t *GetMatchesSpec1(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
- const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
- uint32_t _cyclicBufferSize, uint32_t cutValue, uint32_t *distances,
- uint32_t maxLen)
-{
- CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
- CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
- uint32_t len0 = 0, len1 = 0;
- for (;;)
- {
- uint32_t delta = pos - curMatch;
- if (cutValue-- == 0 || delta >= _cyclicBufferSize)
- {
- *ptr0 = *ptr1 = kEmptyHashValue;
- return distances;
- }
- {
- CLzRef *pair = son + ((_cyclicBufferPos - delta +
- ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0))
- << 1);
- const uint8_t *pb = cur - delta;
- uint32_t len = (len0 < len1 ? len0 : len1);
- if (pb[len] == cur[len])
- {
- if (++len != lenLimit && pb[len] == cur[len])
- while (++len != lenLimit)
- if (pb[len] != cur[len])
- break;
- if (maxLen < len)
- {
- *distances++ = maxLen = len;
- *distances++ = delta - 1;
- if (len == lenLimit)
- {
- *ptr1 = pair[0];
- *ptr0 = pair[1];
- return distances;
- }
- }
- }
- if (pb[len] < cur[len])
- {
- *ptr1 = curMatch;
- ptr1 = pair + 1;
- curMatch = *ptr1;
- len1 = len;
- }
- else
- {
- *ptr0 = curMatch;
- ptr0 = pair;
- curMatch = *ptr0;
- len0 = len;
- }
- }
- }
-}
-
-static void SkipMatchesSpec(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
- const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
- uint32_t _cyclicBufferSize, uint32_t cutValue)
-{
- CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
- CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
- uint32_t len0 = 0, len1 = 0;
- for (;;)
- {
- uint32_t delta = pos - curMatch;
- if (cutValue-- == 0 || delta >= _cyclicBufferSize)
- {
- *ptr0 = *ptr1 = kEmptyHashValue;
- return;
- }
- {
- CLzRef *pair = son + ((_cyclicBufferPos - delta +
- ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0))
- << 1);
- const uint8_t *pb = cur - delta;
- uint32_t len = (len0 < len1 ? len0 : len1);
- if (pb[len] == cur[len])
- {
- while (++len != lenLimit)
- if (pb[len] != cur[len])
- break;
- {
- if (len == lenLimit)
- {
- *ptr1 = pair[0];
- *ptr0 = pair[1];
- return;
- }
- }
- }
- if (pb[len] < cur[len])
- {
- *ptr1 = curMatch;
- ptr1 = pair + 1;
- curMatch = *ptr1;
- len1 = len;
- }
- else
- {
- *ptr0 = curMatch;
- ptr0 = pair;
- curMatch = *ptr0;
- len0 = len;
- }
- }
- }
-}
-
-#define MOVE_POS \
- ++p->cyclicBufferPos; \
- p->buffer++; \
- if (++p->pos == p->posLimit) \
- MatchFinder_CheckLimits(p);
-
-#define MOVE_POS_RET MOVE_POS return offset;
-
-static void MatchFinder_MovePos(CMatchFinder *p)
-{
- MOVE_POS;
-}
-
-#define GET_MATCHES_HEADER2(minLen, ret_op) \
- uint32_t lenLimit; \
- uint32_t hashValue; \
- const uint8_t *cur; \
- uint32_t curMatch; \
- lenLimit = p->lenLimit; \
- { \
- if (lenLimit < minLen) \
- { \
- MatchFinder_MovePos(p); \
- ret_op; \
- } \
- } \
- cur = p->buffer;
-
-#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
-#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue)
-
-#define MF_PARAMS(p) \
- p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
-
-#define GET_MATCHES_FOOTER(offset, maxLen) \
- offset = (uint32_t)( \
- GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), distances + offset, maxLen) - \
- distances); \
- MOVE_POS_RET;
-
-#define SKIP_FOOTER \
- SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); \
- MOVE_POS;
-
-static uint32_t Bt2_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t offset;
- GET_MATCHES_HEADER(2)
- HASH2_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- offset = 0;
- GET_MATCHES_FOOTER(offset, 1)
-}
-
-uint32_t Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t offset;
- GET_MATCHES_HEADER(3)
- HASH_ZIP_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- offset = 0;
- GET_MATCHES_FOOTER(offset, 2)
-}
-
-static uint32_t Bt3_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t hash2Value, delta2, maxLen, offset;
- GET_MATCHES_HEADER(3)
-
- HASH3_CALC;
-
- delta2 = p->pos - p->hash[hash2Value];
- curMatch = p->hash[kFix3HashSize + hashValue];
-
- p->hash[hash2Value] = p->hash[kFix3HashSize + hashValue] = p->pos;
-
- maxLen = 2;
- offset = 0;
- if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
- {
- for (; maxLen != lenLimit; maxLen++)
- if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
- break;
- distances[0] = maxLen;
- distances[1] = delta2 - 1;
- offset = 2;
- if (maxLen == lenLimit)
- {
- SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
- MOVE_POS_RET;
- }
- }
- GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static uint32_t Bt4_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t hash2Value, hash3Value, delta2, delta3, maxLen, offset;
- GET_MATCHES_HEADER(4)
-
- HASH4_CALC;
-
- delta2 = p->pos - p->hash[hash2Value];
- delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
- curMatch = p->hash[kFix4HashSize + hashValue];
-
- p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
- p->hash[kFix4HashSize + hashValue] = p->pos;
-
- maxLen = 1;
- offset = 0;
- if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
- {
- distances[0] = maxLen = 2;
- distances[1] = delta2 - 1;
- offset = 2;
- }
- if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
- {
- maxLen = 3;
- distances[offset + 1] = delta3 - 1;
- offset += 2;
- delta2 = delta3;
- }
- if (offset != 0)
- {
- for (; maxLen != lenLimit; maxLen++)
- if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
- break;
- distances[offset - 2] = maxLen;
- if (maxLen == lenLimit)
- {
- SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
- MOVE_POS_RET;
- }
- }
- if (maxLen < 3)
- maxLen = 3;
- GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static uint32_t Hc4_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t hash2Value, hash3Value, delta2, delta3, maxLen, offset;
- GET_MATCHES_HEADER(4)
-
- HASH4_CALC;
-
- delta2 = p->pos - p->hash[hash2Value];
- delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
- curMatch = p->hash[kFix4HashSize + hashValue];
-
- p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
- p->hash[kFix4HashSize + hashValue] = p->pos;
-
- maxLen = 1;
- offset = 0;
- if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
- {
- distances[0] = maxLen = 2;
- distances[1] = delta2 - 1;
- offset = 2;
- }
- if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
- {
- maxLen = 3;
- distances[offset + 1] = delta3 - 1;
- offset += 2;
- delta2 = delta3;
- }
- if (offset != 0)
- {
- for (; maxLen != lenLimit; maxLen++)
- if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
- break;
- distances[offset - 2] = maxLen;
- if (maxLen == lenLimit)
- {
- p->son[p->cyclicBufferPos] = curMatch;
- MOVE_POS_RET;
- }
- }
- if (maxLen < 3)
- maxLen = 3;
- offset = (uint32_t)(
- Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), distances + offset, maxLen) -
- (distances));
- MOVE_POS_RET
-}
-
-uint32_t Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
- uint32_t offset;
- GET_MATCHES_HEADER(3)
- HASH_ZIP_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- offset = (uint32_t)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), distances, 2) -
- (distances));
- MOVE_POS_RET
-}
-
-static void Bt2_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- SKIP_HEADER(2)
- HASH2_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- SKIP_FOOTER
- } while (--num != 0);
-}
-
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- SKIP_HEADER(3)
- HASH_ZIP_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- SKIP_FOOTER
- } while (--num != 0);
-}
-
-static void Bt3_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- uint32_t hash2Value;
- SKIP_HEADER(3)
- HASH3_CALC;
- curMatch = p->hash[kFix3HashSize + hashValue];
- p->hash[hash2Value] = p->hash[kFix3HashSize + hashValue] = p->pos;
- SKIP_FOOTER
- } while (--num != 0);
-}
-
-static void Bt4_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- uint32_t hash2Value, hash3Value;
- SKIP_HEADER(4)
- HASH4_CALC;
- curMatch = p->hash[kFix4HashSize + hashValue];
- p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] = p->pos;
- p->hash[kFix4HashSize + hashValue] = p->pos;
- SKIP_FOOTER
- } while (--num != 0);
-}
-
-static void Hc4_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- uint32_t hash2Value, hash3Value;
- SKIP_HEADER(4)
- HASH4_CALC;
- curMatch = p->hash[kFix4HashSize + hashValue];
- p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
- p->hash[kFix4HashSize + hashValue] = p->pos;
- p->son[p->cyclicBufferPos] = curMatch;
- MOVE_POS
- } while (--num != 0);
-}
-
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
- do
- {
- SKIP_HEADER(3)
- HASH_ZIP_CALC;
- curMatch = p->hash[hashValue];
- p->hash[hashValue] = p->pos;
- p->son[p->cyclicBufferPos] = curMatch;
- MOVE_POS
- } while (--num != 0);
-}
-
-void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
-{
- vTable->Init = (Mf_Init_Func)MatchFinder_Init;
- vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
- vTable->GetNumAvailableBytes =
- (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
- vTable->GetPointerToCurrentPos =
- (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
- if (!p->btMode)
- {
- vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
- vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
- }
- else if (p->numHashBytes == 2)
- {
- vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
- vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
- }
- else if (p->numHashBytes == 3)
- {
- vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
- vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
- }
- else
- {
- vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
- vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
- }
-}