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Add long distance matcher

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Move last literals section to ZSTD_block_internal
This commit is contained in:
Stella Lau
2017-08-31 12:53:19 -07:00
parent d01cd4ea47
commit 6a546efb8c
12 changed files with 901 additions and 124 deletions
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lib/compress/zstd_opt.h
+10 -14
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@@ -413,8 +413,9 @@ static U32 ZSTD_BtGetAllMatches_selectMLS_extDict (
* Optimal parser
*********************************/
FORCE_INLINE
void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
const void* src, size_t srcSize, const int ultra)
size_t ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
const void* src, size_t srcSize,
const int ultra)
{
seqStore_t* seqStorePtr = &(ctx->seqStore);
optState_t* optStatePtr = &(ctx->optState);
@@ -654,17 +655,15 @@ _storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
/* Save reps for next block */
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) seqStorePtr->repToConfirm[i] = rep[i]; }
/* Last Literals */
{ size_t const lastLLSize = iend - anchor;
memcpy(seqStorePtr->lit, anchor, lastLLSize);
seqStorePtr->lit += lastLLSize;
}
/* Return the last literals size */
return iend - anchor;
}
FORCE_INLINE
void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
const void* src, size_t srcSize, const int ultra)
size_t ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
const void* src, size_t srcSize,
const int ultra)
{
seqStore_t* seqStorePtr = &(ctx->seqStore);
optState_t* optStatePtr = &(ctx->optState);
@@ -928,11 +927,8 @@ _storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
/* Save reps for next block */
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) seqStorePtr->repToConfirm[i] = rep[i]; }
/* Last Literals */
{ size_t lastLLSize = iend - anchor;
memcpy(seqStorePtr->lit, anchor, lastLLSize);
seqStorePtr->lit += lastLLSize;
}
/* Return the last literals size */
return iend - anchor;
}
#endif /* ZSTD_OPT_H_91842398743 */