ddidderr/zstd-rs
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Merge remote-tracking branch 'refs/remotes/Cyan4973/dev' into dev

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inikep
2016-04-11 16:49:27 +02:00
parent f7d210b2e9 582933fde5
commit 8844e21dff
22 changed files with 5366 additions and 398 deletions
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lib/zstd_opt.h
+13 -17
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@@ -250,7 +250,7 @@ U32 ZSTD_insertAndFindFirstIndexHash3 (ZSTD_CCtx* zc, const BYTE* ip)
U32 idx = zc->nextToUpdate3;
const U32 target = zc->nextToUpdate3 = (U32)(ip - base);
const size_t hash3 = ZSTD_hash3Ptr(ip, hashLog3);
while(idx < target) {
hashTable3[ZSTD_hash3Ptr(base+idx, hashLog3)] = idx;
idx++;
@@ -472,8 +472,7 @@ void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
/* init */
U32 rep[ZSTD_REP_INIT];
for (U32 i=0; i<ZSTD_REP_INIT; i++)
rep[i]=REPCODE_STARTVALUE;
{ U32 i; for (i=0; i<ZSTD_REP_INIT; i++) rep[i]=REPCODE_STARTVALUE; }
ctx->nextToUpdate3 = ctx->nextToUpdate;
ZSTD_resetSeqStore(seqStorePtr);
@@ -499,7 +498,7 @@ void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
opt[0].litlen = (U32)(ip - litstart);
/* check repCode */
for (U32 i=0; i<ZSTD_REP_NUM; i++)
{ U32 i; for (i=0; i<ZSTD_REP_NUM; i++)
if (MEM_readMINMATCH(ip, minMatch) == MEM_readMINMATCH(ip - rep[i], minMatch)) {
/* repcode : we take it */
mlen = (U32)ZSTD_count(ip+minMatch, ip+minMatch-rep[i], iend) + minMatch;
@@ -518,15 +517,14 @@ void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
SET_PRICE(mlen, mlen, i, litlen, price); /* note : macro modifies last_pos */
mlen--;
} while (mlen >= minMatch);
}
} }
match_num = ZSTD_BtGetAllMatches_selectMLS(ctx, ip, iend, maxSearches, mls, matches); /* first search (depth 0) */
ZSTD_LOG_PARSER("%d: match_num=%d last_pos=%d\n", (int)(ip-base), match_num, last_pos);
if (!last_pos && !match_num) { ip++; continue; }
for (U32 i=0; i<ZSTD_REP_INIT; i++)
opt[0].rep[i] = rep[i];
{ U32 i ; for (i=0; i<ZSTD_REP_INIT; i++) opt[0].rep[i] = rep[i]; }
opt[0].mlen = 1;
if (match_num && matches[match_num-1].len > sufficient_len) {
@@ -593,7 +591,7 @@ void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
ZSTD_LOG_PARSER("%d: CURRENT_NoExt price[%d/%d]=%d off=%d mlen=%d litlen=%d rep[0]=%d rep[1]=%d\n", (int)(inr-base), cur, last_pos, opt[cur].price, opt[cur].off, opt[cur].mlen, opt[cur].litlen, opt[cur].rep[0], opt[cur].rep[1]);
best_mlen = 0;
for (U32 i=0; i<ZSTD_REP_NUM; i++)
{ U32 i; for (i=0; i<ZSTD_REP_NUM; i++)
if (MEM_readMINMATCH(inr, minMatch) == MEM_readMINMATCH(inr - opt[cur].rep[i], minMatch)) { /* check rep */
mlen = (U32)ZSTD_count(inr+minMatch, inr+minMatch - opt[cur].rep[i], iend) + minMatch;
ZSTD_LOG_PARSER("%d: Found REP %d/%d mlen=%d off=%d rep=%d opt[%d].off=%d\n", (int)(inr-base), i, ZSTD_REP_NUM, mlen, i, opt[cur].rep[i], cur, opt[cur].off);
@@ -624,7 +622,7 @@ void ZSTD_compressBlock_opt_generic(ZSTD_CCtx* ctx,
SET_PRICE(cur + mlen, mlen, i, litlen, price);
mlen--;
} while (mlen >= minMatch);
}
} }
match_num = ZSTD_BtGetAllMatches_selectMLS(ctx, inr, iend, maxSearches, mls, matches);
@@ -776,8 +774,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
/* init */
U32 rep[ZSTD_REP_INIT];
for (U32 i=0; i<ZSTD_REP_INIT; i++)
rep[i]=REPCODE_STARTVALUE;
{ U32 i; for (i=0; i<ZSTD_REP_INIT; i++) rep[i]=REPCODE_STARTVALUE; }
ctx->nextToUpdate3 = ctx->nextToUpdate;
ZSTD_resetSeqStore(seqStorePtr);
@@ -800,7 +797,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
opt[0].litlen = (U32)(ip - litstart);
/* check repCode */
for (U32 i=0; i<ZSTD_REP_NUM; i++) {
{ U32 i; for (i=0; i<ZSTD_REP_NUM; i++) {
const U32 repIndex = (U32)(current - rep[i]);
const BYTE* const repBase = repIndex < dictLimit ? dictBase : base;
const BYTE* const repMatch = repBase + repIndex;
@@ -824,15 +821,14 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
SET_PRICE(mlen, mlen, i, litlen, price); /* note : macro modifies last_pos */
mlen--;
} while (mlen >= minMatch);
} }
} } }
match_num = ZSTD_BtGetAllMatches_selectMLS_extDict(ctx, ip, iend, maxSearches, mls, matches); /* first search (depth 0) */
ZSTD_LOG_PARSER("%d: match_num=%d last_pos=%d\n", (int)(ip-base), match_num, last_pos);
if (!last_pos && !match_num) { ip++; continue; }
for (U32 i=0; i<ZSTD_REP_INIT; i++)
opt[0].rep[i] = rep[i];
{ U32 i; for (i=0; i<ZSTD_REP_INIT; i++) opt[0].rep[i] = rep[i]; }
opt[0].mlen = 1;
if (match_num && matches[match_num-1].len > sufficient_len) {
@@ -902,7 +898,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
ZSTD_LOG_PARSER("%d: CURRENT_Ext price[%d/%d]=%d off=%d mlen=%d litlen=%d rep[0]=%d rep[1]=%d\n", (int)(inr-base), cur, last_pos, opt[cur].price, opt[cur].off, opt[cur].mlen, opt[cur].litlen, opt[cur].rep[0], opt[cur].rep[1]);
best_mlen = 0;
for (U32 i=0; i<ZSTD_REP_NUM; i++) {
{ U32 i; for (i=0; i<ZSTD_REP_NUM; i++) {
const U32 repIndex = (U32)(current+cur - opt[cur].rep[i]);
const BYTE* const repBase = repIndex < dictLimit ? dictBase : base;
const BYTE* const repMatch = repBase + repIndex;
@@ -939,7 +935,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
SET_PRICE(cur + mlen, mlen, i, litlen, price);
mlen--;
} while (mlen >= minMatch);
} }
} } }
match_num = ZSTD_BtGetAllMatches_selectMLS_extDict(ctx, inr, iend, maxSearches, mls, matches);
ZSTD_LOG_PARSER("%d: ZSTD_GetAllMatches match_num=%d\n", (int)(inr-base), match_num);