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Small speedup

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Emmanuel Marty 2019-11-27 09:47:32 +01:00 committed by GitHub
parent 78ad147799
commit 63da0eb49d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 1 deletions
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src/shrink_block_v2.c
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@ -369,6 +369,7 @@ static void lzsa_optimize_forward_v2(lzsa_compressor *pCompressor, const unsigne
for (k = nStartingMatchLen; k <= nMatchLen; k++) {
int nMatchLenCost = lzsa_get_match_varlen_size_v2(k - MIN_MATCH_SIZE_V2);
lzsa_arrival *pDestSlots = &arrival[(i + k) << MATCHES_PER_ARRIVAL_SHIFT];
int nInsertedNoRepMatchCandidate = 0;
for (j = 0; j < nMatchesPerArrival && arrival[(i << MATCHES_PER_ARRIVAL_SHIFT) + j].from_slot; j++) {
const int nPrevCost = arrival[(i << MATCHES_PER_ARRIVAL_SHIFT) + j].cost & 0x3fffffff;
@ -377,7 +378,7 @@ static void lzsa_optimize_forward_v2(lzsa_compressor *pCompressor, const unsigne
if (nRepCodingChoiceCost <= pDestSlots[nMatchesPerArrival - 1].cost) {
int nRepOffset = arrival[(i << MATCHES_PER_ARRIVAL_SHIFT) + j].rep_offset;
if (nMatchOffset != nRepOffset) {
if (nMatchOffset != nRepOffset && !nInsertedNoRepMatchCandidate) {
int nCodingChoiceCost = nRepCodingChoiceCost + nNoRepmatchOffsetCost;
if (!nFavorRatio && !arrival[(i << MATCHES_PER_ARRIVAL_SHIFT) + j].num_literals)
@ -420,6 +421,7 @@ static void lzsa_optimize_forward_v2(lzsa_compressor *pCompressor, const unsigne
pDestArrival->rep_offset = nMatchOffset;
pDestArrival->rep_pos = i;
pDestArrival->rep_len = k;
nInsertedNoRepMatchCandidate = 1;
break;
}
}