ddidderr/zstd-rs
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Change : zstd_opt_bt => zstd_btopt

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This commit is contained in:
Yann Collet
2016-02-15 07:21:54 +01:00
parent 0d78a33374
commit cefef8cde7
4 changed files with 45 additions and 45 deletions
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lib/zstd_compress.c
+34 -34
View File
@@ -160,7 +160,7 @@ static unsigned ZSTD_highbit(U32 val);
optimize for `srcSize` if srcSize > 0 */
void ZSTD_validateParams(ZSTD_parameters* params)
{
const U32 btPlus = (params->strategy == ZSTD_btlazy2) || (params->strategy == ZSTD_opt_bt);
const U32 btPlus = (params->strategy == ZSTD_btlazy2) || (params->strategy == ZSTD_btopt);
/* validate params */
if (MEM_32bits()) if (params->windowLog > 25) params->windowLog = 25; /* 32 bits mode cannot flush > 24 bits */
@@ -170,7 +170,7 @@ void ZSTD_validateParams(ZSTD_parameters* params)
CLAMP(params->searchLog, ZSTD_SEARCHLOG_MIN, ZSTD_SEARCHLOG_MAX);
CLAMP(params->searchLength, ZSTD_SEARCHLENGTH_MIN, ZSTD_SEARCHLENGTH_MAX);
CLAMP(params->targetLength, ZSTD_TARGETLENGTH_MIN, ZSTD_TARGETLENGTH_MAX);
if ((U32)params->strategy>(U32)ZSTD_opt_bt) params->strategy = ZSTD_opt_bt;
if ((U32)params->strategy>(U32)ZSTD_btopt) params->strategy = ZSTD_btopt;
/* correct params, to use less memory */
if ((params->srcSize > 0) && (params->srcSize < (1<<ZSTD_WINDOWLOG_MAX))) {
@@ -1980,7 +1980,7 @@ static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* zc,
/* preemptive overflow correction */
if (zc->lowLimit > (1<<30)) {
U32 btplus = (zc->params.strategy == ZSTD_btlazy2) || (zc->params.strategy == ZSTD_opt_bt);
U32 btplus = (zc->params.strategy == ZSTD_btlazy2) || (zc->params.strategy == ZSTD_btopt);
U32 contentMask = (1 << (zc->params.contentLog - btplus)) - 1;
U32 newLowLimit = zc->lowLimit & contentMask; /* preserve position % contentSize */
U32 correction = zc->lowLimit - newLowLimit;
@@ -2055,7 +2055,7 @@ static size_t ZSTD_loadDictionaryContent(ZSTD_CCtx* zc, const void* src, size_t
break;
case ZSTD_btlazy2:
case ZSTD_opt_bt:
case ZSTD_btopt:
ZSTD_updateTree(zc, iend-8, iend, 1 << zc->params.searchLog, zc->params.searchLength);
break;
@@ -2284,10 +2284,10 @@ static const ZSTD_parameters ZSTD_defaultParameters[4][ZSTD_MAX_CLEVEL+1] = {
{ 0, 23, 23, 23, 5, 5, 4, ZSTD_lazy2 }, /* level 15 */
{ 0, 23, 22, 22, 5, 5, 4, ZSTD_btlazy2 }, /* level 16 */
{ 0, 24, 24, 23, 4, 5, 4, ZSTD_btlazy2 }, /* level 17 */
{ 0, 24, 25, 24, 4, 4, 24, ZSTD_opt_bt }, /* level 18 */
{ 0, 25, 25, 24, 5, 4, 40, ZSTD_opt_bt }, /* level 19 */
{ 0, 26, 26, 25, 8, 4,256, ZSTD_opt_bt }, /* level 20 */
{ 0, 26, 27, 25, 10, 4,256, ZSTD_opt_bt }, /* level 21 */
{ 0, 24, 25, 24, 4, 4, 24, ZSTD_btopt }, /* level 18 */
{ 0, 25, 25, 24, 5, 4, 40, ZSTD_btopt }, /* level 19 */
{ 0, 26, 26, 25, 8, 4,256, ZSTD_btopt }, /* level 20 */
{ 0, 26, 27, 25, 10, 4,256, ZSTD_btopt }, /* level 21 */
},
{ /* for srcSize <= 256 KB */
/* l, W, C, H, S, L, T, strat */
@@ -2305,14 +2305,14 @@ static const ZSTD_parameters ZSTD_defaultParameters[4][ZSTD_MAX_CLEVEL+1] = {
{ 0, 18, 17, 17, 7, 4, 4, ZSTD_lazy2 }, /* level 11 */
{ 0, 18, 18, 17, 4, 4, 4, ZSTD_btlazy2 }, /* level 12 */
{ 0, 18, 19, 17, 7, 4, 4, ZSTD_btlazy2 }, /* level 13.*/
{ 0, 18, 17, 19, 8, 4, 24, ZSTD_opt_bt }, /* level 14.*/
{ 0, 18, 19, 19, 8, 4, 48, ZSTD_opt_bt }, /* level 15.*/
{ 0, 18, 19, 18, 9, 4,128, ZSTD_opt_bt }, /* level 16.*/
{ 0, 18, 19, 18, 9, 4,192, ZSTD_opt_bt }, /* level 17.*/
{ 0, 18, 19, 18, 9, 4,256, ZSTD_opt_bt }, /* level 18.*/
{ 0, 18, 19, 18, 10, 4,256, ZSTD_opt_bt }, /* level 19.*/
{ 0, 18, 19, 18, 11, 4,256, ZSTD_opt_bt }, /* level 20.*/
{ 0, 18, 19, 18, 12, 4,256, ZSTD_opt_bt }, /* level 21.*/
{ 0, 18, 17, 19, 8, 4, 24, ZSTD_btopt }, /* level 14.*/
{ 0, 18, 19, 19, 8, 4, 48, ZSTD_btopt }, /* level 15.*/
{ 0, 18, 19, 18, 9, 4,128, ZSTD_btopt }, /* level 16.*/
{ 0, 18, 19, 18, 9, 4,192, ZSTD_btopt }, /* level 17.*/
{ 0, 18, 19, 18, 9, 4,256, ZSTD_btopt }, /* level 18.*/
{ 0, 18, 19, 18, 10, 4,256, ZSTD_btopt }, /* level 19.*/
{ 0, 18, 19, 18, 11, 4,256, ZSTD_btopt }, /* level 20.*/
{ 0, 18, 19, 18, 12, 4,256, ZSTD_btopt }, /* level 21.*/
},
{ /* for srcSize <= 128 KB */
/* l, W, C, H, S, L, T, strat */
@@ -2330,14 +2330,14 @@ static const ZSTD_parameters ZSTD_defaultParameters[4][ZSTD_MAX_CLEVEL+1] = {
{ 0, 17, 17, 17, 7, 4, 4, ZSTD_lazy2 }, /* level 11 */
{ 0, 17, 17, 17, 8, 4, 4, ZSTD_lazy2 }, /* level 12 */
{ 0, 17, 17, 17, 9, 4, 4, ZSTD_lazy2 }, /* level 13 */
{ 0, 17, 18, 16, 5, 4, 20, ZSTD_opt_bt }, /* level 14 */
{ 0, 17, 18, 16, 9, 4, 48, ZSTD_opt_bt }, /* level 15 */
{ 0, 17, 18, 17, 7, 4,128, ZSTD_opt_bt }, /* level 16 */
{ 0, 17, 18, 17, 8, 4,128, ZSTD_opt_bt }, /* level 17 */
{ 0, 17, 18, 17, 8, 4,256, ZSTD_opt_bt }, /* level 18 */
{ 0, 17, 18, 17, 9, 4,256, ZSTD_opt_bt }, /* level 19 */
{ 0, 17, 18, 17, 10, 4,512, ZSTD_opt_bt }, /* level 20 */
{ 0, 17, 18, 17, 11, 4,512, ZSTD_opt_bt }, /* level 21 */
{ 0, 17, 18, 16, 5, 4, 20, ZSTD_btopt }, /* level 14 */
{ 0, 17, 18, 16, 9, 4, 48, ZSTD_btopt }, /* level 15 */
{ 0, 17, 18, 17, 7, 4,128, ZSTD_btopt }, /* level 16 */
{ 0, 17, 18, 17, 8, 4,128, ZSTD_btopt }, /* level 17 */
{ 0, 17, 18, 17, 8, 4,256, ZSTD_btopt }, /* level 18 */
{ 0, 17, 18, 17, 9, 4,256, ZSTD_btopt }, /* level 19 */
{ 0, 17, 18, 17, 10, 4,512, ZSTD_btopt }, /* level 20 */
{ 0, 17, 18, 17, 11, 4,512, ZSTD_btopt }, /* level 21 */
},
{ /* for srcSize <= 16 KB */
@@ -2354,16 +2354,16 @@ static const ZSTD_parameters ZSTD_defaultParameters[4][ZSTD_MAX_CLEVEL+1] = {
{ 0, 14, 14, 14, 9, 4, 4, ZSTD_lazy2 }, /* level 9 */
{ 0, 14, 14, 14, 10, 4, 4, ZSTD_lazy2 }, /* level 10 */
{ 0, 14, 14, 14, 11, 4, 4, ZSTD_lazy2 }, /* level 11 */
{ 0, 14, 15, 15, 12, 4, 32, ZSTD_opt_bt }, /* level 12 */
{ 0, 14, 15, 15, 12, 4, 64, ZSTD_opt_bt }, /* level 13 */
{ 0, 14, 15, 15, 12, 4, 96, ZSTD_opt_bt }, /* level 14 */
{ 0, 14, 15, 15, 12, 4,128, ZSTD_opt_bt }, /* level 15 */
{ 0, 14, 15, 15, 12, 4,256, ZSTD_opt_bt }, /* level 16 */
{ 0, 14, 15, 15, 13, 4,256, ZSTD_opt_bt }, /* level 17 */
{ 0, 14, 15, 15, 14, 4,256, ZSTD_opt_bt }, /* level 18 */
{ 0, 14, 15, 15, 15, 4,256, ZSTD_opt_bt }, /* level 19 */
{ 0, 14, 15, 15, 16, 4,256, ZSTD_opt_bt }, /* level 20 */
{ 0, 14, 15, 15, 17, 4,256, ZSTD_opt_bt }, /* level 21 */
{ 0, 14, 15, 15, 12, 4, 32, ZSTD_btopt }, /* level 12 */
{ 0, 14, 15, 15, 12, 4, 64, ZSTD_btopt }, /* level 13 */
{ 0, 14, 15, 15, 12, 4, 96, ZSTD_btopt }, /* level 14 */
{ 0, 14, 15, 15, 12, 4,128, ZSTD_btopt }, /* level 15 */
{ 0, 14, 15, 15, 12, 4,256, ZSTD_btopt }, /* level 16 */
{ 0, 14, 15, 15, 13, 4,256, ZSTD_btopt }, /* level 17 */
{ 0, 14, 15, 15, 14, 4,256, ZSTD_btopt }, /* level 18 */
{ 0, 14, 15, 15, 15, 4,256, ZSTD_btopt }, /* level 19 */
{ 0, 14, 15, 15, 16, 4,256, ZSTD_btopt }, /* level 20 */
{ 0, 14, 15, 15, 17, 4,256, ZSTD_btopt }, /* level 21 */
},
};
lib/zstd_static.h
+7 -7
View File
@@ -32,9 +32,9 @@
#ifndef ZSTD_STATIC_H
#define ZSTD_STATIC_H
/* The objects defined into this file shall be considered experimental.
* They are not considered stable, as their prototype may change in the future.
* You can use them for tests, provide feedback, or if you can endure risks of future changes.
/* The prototypes defined within this file are considered experimental.
* They should not be used in the context DLL as they may change in the future.
* Prefer static linking if you need them, to control breaking version changes issues.
*/
#if defined (__cplusplus)
@@ -54,8 +54,6 @@ extern "C" {
#define ZSTD_WINDOWLOG_MAX 26
#define ZSTD_WINDOWLOG_MIN 18
#define ZSTD_WINDOWLOG_ABSOLUTEMIN 11
#define ZSTD_TARGETLENGTH_MIN 4
#define ZSTD_TARGETLENGTH_MAX 999
#define ZSTD_CONTENTLOG_MAX (ZSTD_WINDOWLOG_MAX+1)
#define ZSTD_CONTENTLOG_MIN 4
#define ZSTD_HASHLOG_MAX 28
@@ -64,9 +62,11 @@ extern "C" {
#define ZSTD_SEARCHLOG_MIN 1
#define ZSTD_SEARCHLENGTH_MAX 7
#define ZSTD_SEARCHLENGTH_MIN 4
#define ZSTD_TARGETLENGTH_MIN 4
#define ZSTD_TARGETLENGTH_MAX 999
/* from faster to stronger */
typedef enum { ZSTD_fast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_opt, ZSTD_opt_bt } ZSTD_strategy;
typedef enum { ZSTD_fast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_opt, ZSTD_btopt } ZSTD_strategy;
typedef struct
{
@@ -81,7 +81,7 @@ typedef struct
} ZSTD_parameters;
/* *************************************
/*-*************************************
* Advanced functions
***************************************/
ZSTDLIB_API unsigned ZSTD_maxCLevel (void);