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Update to ZStandard v1.1.3

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Tino Reichardt
2017-02-06 20:30:48 +01:00
parent 2e656cea76
commit 4dd6b0a816
12 changed files with 239 additions and 327 deletions
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12
C/zstd/zstd_opt.h
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@@ -38,7 +38,7 @@ MEM_STATIC void ZSTD_rescaleFreqs(seqStore_t* ssPtr, const BYTE* src, size_t src
ssPtr->cachedLiterals = NULL;
ssPtr->cachedPrice = ssPtr->cachedLitLength = 0;
ssPtr->staticPrices = 0;
ssPtr->staticPrices = 0;
if (ssPtr->litLengthSum == 0) {
if (srcSize <= 1024) ssPtr->staticPrices = 1;
@@ -56,7 +56,7 @@ MEM_STATIC void ZSTD_rescaleFreqs(seqStore_t* ssPtr, const BYTE* src, size_t src
for (u=0; u<=MaxLit; u++) {
ssPtr->litFreq[u] = 1 + (ssPtr->litFreq[u]>>ZSTD_FREQ_DIV);
ssPtr->litSum += ssPtr->litFreq[u];
ssPtr->litSum += ssPtr->litFreq[u];
}
for (u=0; u<=MaxLL; u++)
ssPtr->litLengthFreq[u] = 1;
@@ -634,7 +634,7 @@ _storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
} } /* for (cur=0; cur < last_pos; ) */
/* Save reps for next block */
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) ctx->savedRep[i] = rep[i]; }
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) ctx->repToConfirm[i] = rep[i]; }
/* Last Literals */
{ size_t const lastLLSize = iend - anchor;
@@ -825,7 +825,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
match_num = ZSTD_BtGetAllMatches_selectMLS_extDict(ctx, inr, iend, maxSearches, mls, matches, minMatch);
if (match_num > 0 && matches[match_num-1].len > sufficient_len) {
if (match_num > 0 && (matches[match_num-1].len > sufficient_len || cur + matches[match_num-1].len >= ZSTD_OPT_NUM)) {
best_mlen = matches[match_num-1].len;
best_off = matches[match_num-1].off;
last_pos = cur + 1;
@@ -835,7 +835,7 @@ void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx* ctx,
/* set prices using matches at position = cur */
for (u = 0; u < match_num; u++) {
mlen = (u>0) ? matches[u-1].len+1 : best_mlen;
best_mlen = (cur + matches[u].len < ZSTD_OPT_NUM) ? matches[u].len : ZSTD_OPT_NUM - cur;
best_mlen = matches[u].len;
while (mlen <= best_mlen) {
if (opt[cur].mlen == 1) {
@@ -907,7 +907,7 @@ _storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
} } /* for (cur=0; cur < last_pos; ) */
/* Save reps for next block */
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) ctx->savedRep[i] = rep[i]; }
{ int i; for (i=0; i<ZSTD_REP_NUM; i++) ctx->repToConfirm[i] = rep[i]; }
/* Last Literals */
{ size_t lastLLSize = iend - anchor;