AuroraMiddleware/zstd
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Get zstd to build with new functions and callsites, fix arguments

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This commit is contained in:
senhuang42 2020-09-26 21:38:35 -04:00
parent 766c4a8c28
commit dd3dd199bb
1 changed files with 29 additions and 12 deletions
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41
lib/compress/zstd_opt.c
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@ -799,20 +799,25 @@ static void ldm_skipSequences(rawSeqStore_t* rawSeqStore, size_t srcSize, U32 co
// The only function that can update pos (i think, for now)
static rawSeq ldm_splitSequence(rawSeqStore_t* ldmSeqStore, U32 remainingBytes) {
printf("Split Sequence with remaining = %u : ", remainingBytes);
rawSeq currSeq = ldmSeqStore->seq[ldmSeqStore->pos];
/* No split */
if (remainingBytes >= currSeq.litLength + currSeq.matchLength) {
printf("NO SPLIT\n", remainingBytes);
ldmSeqStore->pos++;
return currSeq;
}
/* Need a split */
if (remainingBytes <= currSeq.litLength) {
printf("SPLITTING: all remaining bytes were literals");
currSeq.offset = 0;
} else if (remainingBytes < currSeq.litLength + currSeq.matchLength) {
if (currSeq.matchLength < MINMATCH) {
printf("CurrSeq less than minmatch: all remaining bytes were literals");
currSeq.offset = 0;
}
}
printf("\n");
ldm_skipSequences(ldmSeqStore, remainingBytes, MINMATCH);
return currSeq;
@ -838,7 +843,7 @@ static int ldm_getNextMatch(rawSeqStore_t* ldmSeqStore,
}
/* Adds an LDM if it's long enough */
static void ldm_maybeAddLdm(ZSTD_match_t* matches, U32 nbMatches,
static void ldm_maybeAddLdm(ZSTD_match_t* matches, U32* nbMatches,
U32 matchStartPosInBlock, U32 matchEndPosInBlock,
U32 matchOffset, U32 currPosInBlock) {
/* Check that current block position is not outside of the match */
@ -849,8 +854,10 @@ static void ldm_maybeAddLdm(ZSTD_match_t* matches, U32 nbMatches,
U32 matchLengthAdjusted = matchEndPosInBlock - matchStartPosInBlock - posDiff;
U32 matchOffsetAdjusted = matchOffset + posDiff;
if (matchLengthAdjusted >= matches[nbMatches-1]) {
if (matchLengthAdjusted >= matches[*nbMatches-1].len) {
matches[*nbMatches].len = matchLengthAdjusted;
matches[*nbMatches].off = matchOffsetAdjusted;
(*nbMatches)++;
}
}
@ -860,13 +867,15 @@ static void ldm_maybeUpdateSeqStoreReadPos() {
}
/* Wrapper function to call ldm functions as needed */
static void ldm_handleLdm(ZSTD_match_t* matches, int* nbMatches,
static void ldm_handleLdm(rawSeqStore_t* ldmSeqStore, ZSTD_match_t* matches, U32* nbMatches,
U32* matchStartPosInBlock, U32* matchEndPosInBlock, U32* matchOffset,
U32 currPosInBlock, U32 remainingBytes) {
if (currPosInBlock >= matchEndPosInBlock) {
int noMoreLdms = ldm_getNextMatch(matchStartPosInBlock, matchEndPosInBlock, remainingBytes);
if (currPosInBlock >= *matchEndPosInBlock) {
int noMoreLdms = ldm_getNextMatch(ldmSeqStore, matchStartPosInBlock,
matchEndPosInBlock, matchOffset,
currPosInBlock, remainingBytes);
}
ldm_maybeAddLdm(matches, *nbMatches, *matchStartPosInBlock, *matchEndPosInBlock, *matchOffset, currPosInBlock);
ldm_maybeAddLdm(matches, nbMatches, *matchStartPosInBlock, *matchEndPosInBlock, *matchOffset, currPosInBlock);
}
@ -926,7 +935,9 @@ ZSTD_compressBlock_opt_generic(ZSTD_matchState_t* ms,
U32 ldmStartPosInBlock = 0;
U32 ldmEndPosInBlock = 0;
U32 ldmOffset = 0;
ldm_getNextMatch(matchStartPosInBlock, matchEndPosInBlock, (U32)(iend - ip));
ldm_getNextMatch(&ms->ldmSeqStore, &ldmStartPosInBlock,
&ldmEndPosInBlock, &ldmOffset,
(U32)(ip-istart), (U32)(iend - ip));
/* init */
DEBUGLOG(5, "ZSTD_compressBlock_opt_generic: current=%u, prefix=%u, nextToUpdate=%u",
@ -942,8 +953,11 @@ ZSTD_compressBlock_opt_generic(ZSTD_matchState_t* ms,
/* find first match */
{ U32 const litlen = (U32)(ip - anchor);
U32 const ll0 = !litlen;
U32 const nbMatches = ZSTD_BtGetAllMatches(matches, ms, &nextToUpdate3, ip, iend, dictMode, rep, ll0, minMatch);
ldm_handleLdm(&nbMatches);
U32 nbMatches = ZSTD_BtGetAllMatches(matches, ms, &nextToUpdate3, ip, iend, dictMode, rep, ll0, minMatch);
ldm_handleLdm(&ms->ldmSeqStore, matches,
&nbMatches, &ldmStartPosInBlock,
&ldmEndPosInBlock, &ldmOffset,
(U32)(ip-istart), (U32)(iend-ip));
if (!nbMatches) { ip++; continue; }
/* initialize opt[0] */
@ -1056,10 +1070,13 @@ ZSTD_compressBlock_opt_generic(ZSTD_matchState_t* ms,
U32 const litlen = (opt[cur].mlen == 0) ? opt[cur].litlen : 0;
U32 const previousPrice = opt[cur].price;
U32 const basePrice = previousPrice + ZSTD_litLengthPrice(0, optStatePtr, optLevel);
U32 const nbMatches = ZSTD_BtGetAllMatches(matches, ms, &nextToUpdate3, inr, iend, dictMode, opt[cur].rep, ll0, minMatch);
U32 nbMatches = ZSTD_BtGetAllMatches(matches, ms, &nextToUpdate3, inr, iend, dictMode, opt[cur].rep, ll0, minMatch);
U32 matchNb;
ldm_handleLdm(&nbMatches);
ldm_handleLdm(&ms->ldmSeqStore, matches,
&nbMatches, &ldmStartPosInBlock,
&ldmEndPosInBlock, &ldmOffset,
(U32)(inr-istart), (U32)(iend-inr));
if (!nbMatches) {
DEBUGLOG(7, "rPos:%u : no match found", cur);
continue;