diff --git a/lib/compress/zstd_opt.c b/lib/compress/zstd_opt.c index 2e50fca6..3caa4a1c 100644 --- a/lib/compress/zstd_opt.c +++ b/lib/compress/zstd_opt.c @@ -249,40 +249,6 @@ static U32 ZSTD_litLengthPrice(U32 const litLength, const optState_t* const optP } } -/* ZSTD_litLengthContribution() : - * @return ( cost(litlength) - cost(0) ) - * this value can then be added to rawLiteralsCost() - * to provide a cost which is directly comparable to a match ending at same position */ -static int ZSTD_litLengthContribution(U32 const litLength, const optState_t* const optPtr, int optLevel) -{ - if (optPtr->priceType >= zop_predef) return (int)WEIGHT(litLength, optLevel); - - /* dynamic statistics */ - { U32 const llCode = ZSTD_LLcode(litLength); - int const contribution = (int)(LL_bits[llCode] * BITCOST_MULTIPLIER) - + (int)WEIGHT(optPtr->litLengthFreq[0], optLevel) /* note: log2litLengthSum cancel out */ - - (int)WEIGHT(optPtr->litLengthFreq[llCode], optLevel); -#if 1 - return contribution; -#else - return MAX(0, contribution); /* sometimes better, sometimes not ... */ -#endif - } -} - -/* ZSTD_literalsContribution() : - * creates a fake cost for the literals part of a sequence - * which can be compared to the ending cost of a match - * should a new match start at this position */ -static int ZSTD_literalsContribution(const BYTE* const literals, U32 const litLength, - const optState_t* const optPtr, - int optLevel) -{ - int const contribution = (int)ZSTD_rawLiteralsCost(literals, litLength, optPtr, optLevel) - + ZSTD_litLengthContribution(litLength, optPtr, optLevel); - return contribution; -} - /* ZSTD_getMatchPrice() : * Provides the cost of the match part (offset + matchLength) of a sequence * Must be combined with ZSTD_fullLiteralsCost() to get the full cost of a sequence. @@ -894,7 +860,12 @@ ZSTD_compressBlock_opt_generic(ZSTD_matchState_t* ms, { U32 i ; for (i=0; i immediate encoding */ { U32 const maxML = matches[nbMatches-1].len;