adding ZSTD_dedicatedDictSearch_defaultCParameters variable
Bimba Shrestha
W. Felix Handte
parent
c497cb6716
commit
f10d4e313c
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@ -4248,6 +4248,114 @@ static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEV
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},
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};
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static const ZSTD_compressionParameters
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ZSTD_dedicatedDictSearch_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = {
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{ /* "default" - for any dictSize > 256 KB */
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/* W, C, H, S, L, TL, strat */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* base (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 1 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 2 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 3 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 4 (not adjusted) */
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{ 21, 18, 19 + DD_BLOG, 2, 5, 2, ZSTD_greedy }, /* level 5 */
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{ 21, 19, 19 + DD_BLOG, 3, 5, 4, ZSTD_greedy }, /* level 6 */
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{ 21, 19, 19 + DD_BLOG, 3, 5, 8, ZSTD_lazy }, /* level 7 */
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{ 21, 19, 19 + DD_BLOG, 3, 5, 16, ZSTD_lazy2 }, /* level 8 */
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{ 21, 19, 20 + DD_BLOG, 4, 5, 16, ZSTD_lazy2 }, /* level 9 */
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{ 22, 20, 21 + DD_BLOG, 4, 5, 16, ZSTD_lazy2 }, /* level 10 */
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{ 22, 21, 22 + DD_BLOG, 4, 5, 16, ZSTD_lazy2 }, /* level 11 */
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{ 22, 21, 22 + DD_BLOG, 5, 5, 16, ZSTD_lazy2 }, /* level 12 */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 13 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 14 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 15 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 16 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 17 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 18 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 19 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 20 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 21 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 } /* level 22 (not adjusted) */
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},
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{ /* for dictSize <= 256 KB */
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/* W, C, H, S, L, T, strat */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* base (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 1 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 2 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 3 (not adjusted) */
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{ 18, 16, 17 + DD_BLOG, 2, 5, 2, ZSTD_greedy }, /* level 4 */
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{ 18, 18, 18 + DD_BLOG, 3, 5, 2, ZSTD_greedy }, /* level 5 */
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{ 18, 18, 19 + DD_BLOG, 3, 5, 4, ZSTD_lazy }, /* level 6 */
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{ 18, 18, 19 + DD_BLOG, 4, 4, 4, ZSTD_lazy }, /* level 7 */
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{ 18, 18, 19 + DD_BLOG, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */
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{ 18, 18, 19 + DD_BLOG, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */
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{ 18, 18, 19 + DD_BLOG, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 11 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 12 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 13 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 14 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 15 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 16 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 17 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 18 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 19 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 20 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 21 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 } /* level 22 (not adjusted) */
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},
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{ /* for dictSize <= 128 KB */
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/* W, C, H, S, L, T, strat */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* base (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 1 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 2 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 3 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 4 (not adjusted) */
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{ 17, 16, 17 + DD_BLOG, 3, 4, 2, ZSTD_greedy }, /* level 5 */
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{ 17, 17, 17 + DD_BLOG, 3, 4, 4, ZSTD_lazy }, /* level 6 */
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{ 17, 17, 17 + DD_BLOG, 3, 4, 8, ZSTD_lazy2 }, /* level 7 */
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{ 17, 17, 17 + DD_BLOG, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */
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{ 17, 17, 17 + DD_BLOG, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */
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{ 17, 17, 17 + DD_BLOG, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 11 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 12 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 13 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 14 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 15 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 16 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 17 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 18 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 19 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 20 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 21 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 } /* level 22 (not adjusted) */
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},
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{ /* for dictSize <= 16 KB */
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/* W, C, H, S, L, T, strat */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* base (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 1 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 2 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 3 (not adjusted) */
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{ 14, 14, 14 + DD_BLOG, 4, 4, 2, ZSTD_greedy }, /* level 4 */
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{ 14, 14, 14 + DD_BLOG, 3, 4, 4, ZSTD_lazy }, /* level 5 */
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{ 14, 14, 14 + DD_BLOG, 4, 4, 8, ZSTD_lazy2 }, /* level 6 */
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{ 14, 14, 14 + DD_BLOG, 6, 4, 8, ZSTD_lazy2 }, /* level 7 */
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{ 14, 14, 14 + DD_BLOG, 8, 4, 8, ZSTD_lazy2 }, /* level 8 */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 9 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 10 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 11 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 12 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 13 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 14 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 15 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 16 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 17 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 18 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 19 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 20 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 }, /* level 21 (not adjusted) */
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{ 0, 0, 0, 0, 0, 0, 0 } /* level 22 (not adjusted) */
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},
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};
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/*! ZSTD_getCParams_internal() :
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* @return ZSTD_compressionParameters structure for a selected compression level, srcSize and dictSize.
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* Note: srcSizeHint 0 means 0, use ZSTD_CONTENTSIZE_UNKNOWN for unknown.
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@ -29,6 +29,12 @@ extern "C" {
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#endif
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/* Dedicated dict search bucket log:
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* ---------------------------------
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* This determines the additional space we need for the hash table.
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* We will have 2^DD_BLOG slots in our bucket. */
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#define DD_BLOG 2
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/*-*************************************
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* Constants
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***************************************/
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