ddidderr/zstd-rs
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merged strats

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This commit is contained in:
Yann Collet
2015-11-05 15:00:24 +01:00
parent 43ae161fe9
commit 5106a76dc9
3 changed files with 274 additions and 123 deletions
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lib/zstdhc_static.h
+9 -7
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@@ -45,7 +45,9 @@ extern "C" {
/* *************************************
* Types
***************************************/
typedef enum { ZSTD_HC_greedy, ZSTD_HC_lazy, ZSTD_HC_lazydeep, ZSTD_HC_btlazy2 } ZSTD_HC_strategy;
/** from faster to stronger */
typedef enum { ZSTD_HC_greedy, ZSTD_HC_lazy, ZSTD_HC_hclazy2, ZSTD_HC_btlazy2 } ZSTD_HC_strategy;
typedef struct
{
U32 windowLog; /* largest match distance : impact decompression buffer size */
@@ -53,7 +55,7 @@ typedef struct
U32 hashLog; /* dispatch table : larger == more memory, faster*/
U32 searchLog; /* nb of searches : larger == more compression, slower*/
U32 searchLength; /* size of matches : larger == faster decompression */
ZSTD_HC_strategy strategy; /* faster to stronger : greedy, lazy, lazydeep, btlazy2 */
ZSTD_HC_strategy strategy;
} ZSTD_HC_parameters;
/* parameters boundaries */
@@ -110,11 +112,11 @@ static const ZSTD_HC_parameters ZSTD_HC_defaultParameters[ZSTD_HC_MAX_CLEVEL+1]
{ 21, 19, 20, 4, 5, ZSTD_HC_lazy }, /* level 8 */
{ 21, 19, 20, 5, 5, ZSTD_HC_lazy }, /* level 9 */
{ 21, 20, 20, 5, 5, ZSTD_HC_lazy }, /* level 10 */
{ 21, 20, 20, 5, 5, ZSTD_HC_lazydeep }, /* level 11 */
{ 22, 20, 22, 5, 5, ZSTD_HC_lazydeep }, /* level 12 */
{ 22, 20, 22, 6, 5, ZSTD_HC_lazydeep }, /* level 13 */
{ 22, 21, 22, 6, 5, ZSTD_HC_lazydeep }, /* level 14 */
{ 22, 21, 22, 6, 5, ZSTD_HC_lazydeep }, /* level 15 */
{ 21, 20, 20, 5, 5, ZSTD_HC_hclazy2 }, /* level 11 */
{ 22, 20, 22, 5, 5, ZSTD_HC_hclazy2 }, /* level 12 */
{ 22, 20, 22, 6, 5, ZSTD_HC_hclazy2 }, /* level 13 */
{ 22, 21, 22, 6, 5, ZSTD_HC_hclazy2 }, /* level 14 */
{ 22, 21, 22, 6, 5, ZSTD_HC_hclazy2 }, /* level 15 */
{ 22, 21, 22, 4, 5, ZSTD_HC_btlazy2 }, /* level 16 */
{ 23, 23, 23, 4, 5, ZSTD_HC_btlazy2 }, /* level 17 */
{ 23, 23, 23, 5, 5, ZSTD_HC_btlazy2 }, /* level 18 */