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Fix calculation for promoting literal+match seqs

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Emmanuel Marty 2019-11-19 19:48:39 +01:00 committed by GitHub
parent b1738b4003
commit 8e4e7c06c7
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1 changed files with 3 additions and 2 deletions
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src/shrink_block_v2.c
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@ -505,12 +505,13 @@ static int lzsa_optimize_command_count_v2(lzsa_compressor *pCompressor, const un
if (pMatch->length == 0 && if (pMatch->length == 0 &&
(i + 1) < (nEndOffset - LAST_LITERALS) && (i + 1) < (nEndOffset - LAST_LITERALS) &&
pBestMatch[i + 1].length >= MIN_MATCH_SIZE_V2 && pBestMatch[i + 1].length >= MIN_MATCH_SIZE_V2 &&
pBestMatch[i + 1].length < MAX_VARLEN &&
pBestMatch[i + 1].offset && pBestMatch[i + 1].offset &&
i >= pBestMatch[i + 1].offset && i >= pBestMatch[i + 1].offset &&
(i + pBestMatch[i + 1].length + 1) <= (nEndOffset - LAST_LITERALS) && (i + pBestMatch[i + 1].length + 1) <= (nEndOffset - LAST_LITERALS) &&
!memcmp(pInWindow + i - (pBestMatch[i + 1].offset), pInWindow + i, pBestMatch[i + 1].length + 1)) { !memcmp(pInWindow + i - (pBestMatch[i + 1].offset), pInWindow + i, pBestMatch[i + 1].length + 1)) {
int nCurLenSize = lzsa_get_match_varlen_size_v2(pBestMatch[i + 1].length); int nCurLenSize = lzsa_get_match_varlen_size_v2(pBestMatch[i + 1].length - MIN_MATCH_SIZE_V2);
int nReducedLenSize = lzsa_get_match_varlen_size_v2(pBestMatch[i + 1].length + 1); int nReducedLenSize = lzsa_get_match_varlen_size_v2(pBestMatch[i + 1].length + 1 - MIN_MATCH_SIZE_V2);
if ((nReducedLenSize - nCurLenSize) <= 8) { if ((nReducedLenSize - nCurLenSize) <= 8) {
/* Merge */ /* Merge */