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Update to lzma 920 library.

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This commit is contained in:
Con Kolivas 2011-09-14 08:07:46 +10:00
parent 7104809cd1
commit 71bb72f5da
15 changed files with 196 additions and 146 deletions
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2
README
View file

@ -244,7 +244,7 @@ A. It has been tested on gcc, ekopath and the intel compiler successfully
previously. Whether the commercial compilers help or not, I could not tell you. previously. Whether the commercial compilers help or not, I could not tell you.
Q. What codebase are you basing this on? Q. What codebase are you basing this on?
A. rzip v2.1 and lzma sdk907, but it should be possible to stay in sync with A. rzip v2.1 and lzma sdk920, but it should be possible to stay in sync with
each of these in the future. each of these in the future.
Q. Do we really need yet another compression format? Q. Do we really need yet another compression format?

25
lzma/C/Alloc.h
View file

@ -1,18 +1,19 @@
/* Alloc.h -- Memory allocation functions /* Alloc.h -- Memory allocation functions
2008-03-13 2009-02-07 : Igor Pavlov : Public domain */
Igor Pavlov
Public domain */
#ifndef __COMMON_ALLOC_H #ifndef __COMMON_ALLOC_H
#define __COMMON_ALLOC_H #define __COMMON_ALLOC_H
#include <stddef.h> #include <stddef.h>
#ifdef _WIN32 #ifdef __cplusplus
extern "C" {
#endif
void *MyAlloc(size_t size); void *MyAlloc(size_t size);
void MyFree(void *address); void MyFree(void *address);
#ifdef _WIN32
void SetLargePageSize(); void SetLargePageSize();
@ -23,15 +24,15 @@ void BigFree(void *address);
#else #else
#include <stdlib.h> /* malloc */ #define MidAlloc(size) MyAlloc(size)
#define MidFree(address) MyFree(address)
#define MyAlloc(size) malloc(size) #define BigAlloc(size) MyAlloc(size)
#define MyFree(address) free(address) #define BigFree(address) MyFree(address)
#define MidAlloc(size) malloc(size)
#define MidFree(address) free(address)
#define BigAlloc(size) malloc(size)
#define BigFree(address) free(address)
#endif #endif
#ifdef __cplusplus
}
#endif
#endif #endif

24
lzma/C/LzFindMt.c
View file

@ -1,5 +1,5 @@
/* LzFindMt.c -- multithreaded Match finder for LZ algorithms /* LzFindMt.c -- multithreaded Match finder for LZ algorithms
2009-05-26 : Igor Pavlov : Public domain */ 2009-09-20 : Igor Pavlov : Public domain */
#include "LzHash.h" #include "LzHash.h"
@ -711,47 +711,47 @@ UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
return len; return len;
} }
#define SKIP_HEADER2 do { GET_NEXT_BLOCK_IF_REQUIRED #define SKIP_HEADER2_MT do { GET_NEXT_BLOCK_IF_REQUIRED
#define SKIP_HEADER(n) SKIP_HEADER2 if (p->btNumAvailBytes-- >= (n)) { const Byte *cur = p->pointerToCurPos; UInt32 *hash = p->hash; #define SKIP_HEADER_MT(n) SKIP_HEADER2_MT if (p->btNumAvailBytes-- >= (n)) { const Byte *cur = p->pointerToCurPos; UInt32 *hash = p->hash;
#define SKIP_FOOTER } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while (--num != 0); #define SKIP_FOOTER_MT } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while (--num != 0);
void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num) void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num)
{ {
SKIP_HEADER2 { p->btNumAvailBytes--; SKIP_HEADER2_MT { p->btNumAvailBytes--;
SKIP_FOOTER SKIP_FOOTER_MT
} }
void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num) void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num)
{ {
SKIP_HEADER(2) SKIP_HEADER_MT(2)
UInt32 hash2Value; UInt32 hash2Value;
MT_HASH2_CALC MT_HASH2_CALC
hash[hash2Value] = p->lzPos; hash[hash2Value] = p->lzPos;
SKIP_FOOTER SKIP_FOOTER_MT
} }
void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num) void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num)
{ {
SKIP_HEADER(3) SKIP_HEADER_MT(3)
UInt32 hash2Value, hash3Value; UInt32 hash2Value, hash3Value;
MT_HASH3_CALC MT_HASH3_CALC
hash[kFix3HashSize + hash3Value] = hash[kFix3HashSize + hash3Value] =
hash[ hash2Value] = hash[ hash2Value] =
p->lzPos; p->lzPos;
SKIP_FOOTER SKIP_FOOTER_MT
} }
/* /*
void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num) void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
{ {
SKIP_HEADER(4) SKIP_HEADER_MT(4)
UInt32 hash2Value, hash3Value, hash4Value; UInt32 hash2Value, hash3Value, hash4Value;
MT_HASH4_CALC MT_HASH4_CALC
hash[kFix4HashSize + hash4Value] = hash[kFix4HashSize + hash4Value] =
hash[kFix3HashSize + hash3Value] = hash[kFix3HashSize + hash3Value] =
hash[ hash2Value] = hash[ hash2Value] =
p->lzPos; p->lzPos;
SKIP_FOOTER SKIP_FOOTER_MT
} }
*/ */

14
lzma/C/LzmaDec.c
View file

@ -1,5 +1,5 @@
/* LzmaDec.c -- LZMA Decoder /* LzmaDec.c -- LZMA Decoder
2008-11-06 : Igor Pavlov : Public domain */ 2009-09-20 : Igor Pavlov : Public domain */
#include "LzmaDec.h" #include "LzmaDec.h"
@ -113,12 +113,6 @@
StopCompilingDueBUG StopCompilingDueBUG
#endif #endif
static const Byte kLiteralNextStates[kNumStates * 2] =
{
0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5,
7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10
};
#define LZMA_DIC_MIN (1 << 12) #define LZMA_DIC_MIN (1 << 12)
/* First LZMA-symbol is always decoded. /* First LZMA-symbol is always decoded.
@ -175,6 +169,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
if (state < kNumLitStates) if (state < kNumLitStates)
{ {
state -= (state < 4) ? state : 3;
symbol = 1; symbol = 1;
do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100); do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);
} }
@ -182,6 +177,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
{ {
unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)]; unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
unsigned offs = 0x100; unsigned offs = 0x100;
state -= (state < 10) ? 3 : 6;
symbol = 1; symbol = 1;
do do
{ {
@ -196,9 +192,6 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
} }
dic[dicPos++] = (Byte)symbol; dic[dicPos++] = (Byte)symbol;
processedPos++; processedPos++;
state = kLiteralNextStates[state];
/* if (state < 4) state = 0; else if (state < 10) state -= 3; else state -= 6; */
continue; continue;
} }
else else
@ -378,7 +371,6 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte
else if (distance >= checkDicSize) else if (distance >= checkDicSize)
return SZ_ERROR_DATA; return SZ_ERROR_DATA;
state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3; state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
/* state = kLiteralNextStates[state]; */
} }
len += kMatchMinLen; len += kMatchMinLen;

40
lzma/C/LzmaEnc.c
View file

@ -1,5 +1,5 @@
/* LzmaEnc.c -- LZMA Encoder /* LzmaEnc.c -- LZMA Encoder
2009-04-22 : Igor Pavlov : Public domain */ 2010-04-16 : Igor Pavlov : Public domain */
#include <string.h> #include <string.h>
@ -13,7 +13,7 @@
#include "LzmaEnc.h" #include "LzmaEnc.h"
#include "LzFind.h" #include "LzFind.h"
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
#include "LzFindMt.h" #include "LzFindMt.h"
#endif #endif
@ -66,7 +66,7 @@ void LzmaEncProps_Normalize(CLzmaEncProps *p)
if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1); if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
if (p->numThreads < 0) if (p->numThreads < 0)
p->numThreads = p->numThreads =
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
((p->btMode && p->algo) ? 2 : 1); ((p->btMode && p->algo) ? 2 : 1);
#else #else
1; 1;
@ -172,7 +172,7 @@ typedef struct
#define kEndPosModelIndex 14 #define kEndPosModelIndex 14
#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex) #define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
#define kNumFullDistances (1 << (kEndPosModelIndex / 2)) #define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
#ifdef _LZMA_PROB32 #ifdef _LZMA_PROB32
#define CLzmaProb UInt32 #define CLzmaProb UInt32
@ -259,14 +259,14 @@ typedef struct
IMatchFinder matchFinder; IMatchFinder matchFinder;
void *matchFinderObj; void *matchFinderObj;
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
Bool mtMode; Bool mtMode;
CMatchFinderMt matchFinderMt; CMatchFinderMt matchFinderMt;
#endif #endif
CMatchFinder matchFinderBase; CMatchFinder matchFinderBase;
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
Byte pad[128]; Byte pad[128];
#endif #endif
@ -395,7 +395,7 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
LzmaEncProps_Normalize(&props); LzmaEncProps_Normalize(&props);
if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX || if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX ||
props.dictSize > (unsigned)(1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30)) props.dictSize > ((UInt32)1 << kDicLogSizeMaxCompress) || props.dictSize > ((UInt32)1 << 30))
return SZ_ERROR_PARAM; return SZ_ERROR_PARAM;
p->dictSize = props.dictSize; p->dictSize = props.dictSize;
p->matchFinderCycles = props.mc; p->matchFinderCycles = props.mc;
@ -428,7 +428,7 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
p->writeEndMark = props.writeEndMark; p->writeEndMark = props.writeEndMark;
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
/* /*
if (newMultiThread != _multiThread) if (newMultiThread != _multiThread)
{ {
@ -804,7 +804,7 @@ static void MovePos(CLzmaEnc *p, UInt32 num)
{ {
#ifdef SHOW_STAT #ifdef SHOW_STAT
ttt += num; ttt += num;
fprintf(stderr, "\n MovePos %d", num); printf("\n MovePos %d", num);
#endif #endif
if (num != 0) if (num != 0)
{ {
@ -819,12 +819,12 @@ static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes)
p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches); numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
#ifdef SHOW_STAT #ifdef SHOW_STAT
fprintf(stderr, "\n i = %d numPairs = %d ", ttt, numPairs / 2); printf("\n i = %d numPairs = %d ", ttt, numPairs / 2);
ttt++; ttt++;
{ {
UInt32 i; UInt32 i;
for (i = 0; i < numPairs; i += 2) for (i = 0; i < numPairs; i += 2)
fprintf(stderr, "%2d %6d | ", p->matches[i], p->matches[i + 1]); printf("%2d %6d | ", p->matches[i], p->matches[i + 1]);
} }
#endif #endif
if (numPairs > 0) if (numPairs > 0)
@ -1115,9 +1115,9 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
if (position >= 0) if (position >= 0)
{ {
unsigned i; unsigned i;
fprintf(stderr, "\n pos = %4X", position); printf("\n pos = %4X", position);
for (i = cur; i <= lenEnd; i++) for (i = cur; i <= lenEnd; i++)
fprintf(stderr, "\nprice[%4X] = %d", position - cur + i, p->opt[i].price); printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
} }
#endif #endif
@ -1677,7 +1677,7 @@ void LzmaEnc_Construct(CLzmaEnc *p)
{ {
RangeEnc_Construct(&p->rc); RangeEnc_Construct(&p->rc);
MatchFinder_Construct(&p->matchFinderBase); MatchFinder_Construct(&p->matchFinderBase);
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
MatchFinderMt_Construct(&p->matchFinderMt); MatchFinderMt_Construct(&p->matchFinderMt);
p->matchFinderMt.MatchFinder = &p->matchFinderBase; p->matchFinderMt.MatchFinder = &p->matchFinderBase;
#endif #endif
@ -1716,7 +1716,7 @@ void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig) void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
{ {
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
MatchFinderMt_Destruct(&p->matchFinderMt, allocBig); MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
#endif #endif
MatchFinder_Free(&p->matchFinderBase, allocBig); MatchFinder_Free(&p->matchFinderBase, allocBig);
@ -1772,7 +1772,7 @@ static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize
len = GetOptimum(p, nowPos32, &pos); len = GetOptimum(p, nowPos32, &pos);
#ifdef SHOW_STAT2 #ifdef SHOW_STAT2
fprintf(stderr, "\n pos = %4X, len = %d pos = %d", nowPos32, len, pos); printf("\n pos = %4X, len = %d pos = %d", nowPos32, len, pos);
#endif #endif
posState = nowPos32 & p->pbMask; posState = nowPos32 & p->pbMask;
@ -1901,7 +1901,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
if (!RangeEnc_Alloc(&p->rc, alloc)) if (!RangeEnc_Alloc(&p->rc, alloc))
return SZ_ERROR_MEM; return SZ_ERROR_MEM;
btMode = (p->matchFinderBase.btMode != 0); btMode = (p->matchFinderBase.btMode != 0);
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
p->mtMode = (p->multiThread && !p->fastMode && btMode); p->mtMode = (p->multiThread && !p->fastMode && btMode);
#endif #endif
@ -1926,7 +1926,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
if (beforeSize + p->dictSize < keepWindowSize) if (beforeSize + p->dictSize < keepWindowSize)
beforeSize = keepWindowSize - p->dictSize; beforeSize = keepWindowSize - p->dictSize;
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
if (p->mtMode) if (p->mtMode)
{ {
RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig)); RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig));
@ -2073,7 +2073,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
void LzmaEnc_Finish(CLzmaEncHandle pp) void LzmaEnc_Finish(CLzmaEncHandle pp)
{ {
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
CLzmaEnc *p = (CLzmaEnc *)pp; CLzmaEnc *p = (CLzmaEnc *)pp;
if (p->mtMode) if (p->mtMode)
MatchFinderMt_ReleaseStream(&p->matchFinderMt); MatchFinderMt_ReleaseStream(&p->matchFinderMt);
@ -2155,7 +2155,7 @@ static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
{ {
SRes res = SZ_OK; SRes res = SZ_OK;
#ifdef COMPRESS_MF_MT #ifndef _7ZIP_ST
Byte allocaDummy[0x300]; Byte allocaDummy[0x300];
int i = 0; int i = 0;
for (i = 0; i < 16; i++) for (i = 0; i < 16; i++)

39
lzma/C/Makefile.am
View file

@ -11,25 +11,26 @@ endif
noinst_LTLIBRARIES = liblzma.la noinst_LTLIBRARIES = liblzma.la
liblzma_la_SOURCES = \ liblzma_la_SOURCES = \
$(ASM_S) \ $(ASM_S) \
Alloc.h \ LzmaDec.h \
basetyps.h \ LzmaEnc.h \
LzFind.h \ LzFind.c \
LzFindMt.h \ LzFind.h \
LzHash.h \ LzFindMt.c \
LzmaDec.h \ LzFindMt.h \
LzmaEnc.h \ LzmaDec.c \
LzmaLib.h \ LzmaEnc.c \
MyGuidDef.h \ LzmaLib.c \
MyWindows.h \ LzmaLib.h \
Threads.h \ Alloc.c \
Types.h \ Alloc.h \
windows.h \ Threads.c \
Threads.c \ Threads.h \
LzFind.c \ Types.h \
LzFindMt.c \ LzHash.h \
LzmaDec.c \ windows.h \
LzmaEnc.c \ basetyps.h \
LzmaLib.c MyWindows.h \
MyGuidDef.h
liblzma_so_LIBS = $(ASM_LIBS) liblzma_so_LIBS = $(ASM_LIBS)
liblzma_so_CFLAGS = \ liblzma_so_CFLAGS = \

1
lzma/C/Types.h
View file

@ -46,6 +46,7 @@ typedef int SRes;
typedef DWORD WRes; typedef DWORD WRes;
#else #else
typedef int WRes; typedef int WRes;
typedef void * HANDLE;
#endif #endif
#ifndef RINOK #ifndef RINOK

33
lzma/Methods.txt
View file

@ -1,4 +1,4 @@
7-Zip method IDs (4.61) 7-Zip method IDs (9.18)
----------------------- -----------------------
Each compression or crypto method in 7z has unique binary value (ID). Each compression or crypto method in 7z has unique binary value (ID).
@ -24,14 +24,22 @@ List of defined IDs
------------------- -------------------
00 - Copy 00 - Copy
01 - Reserved
02 - Common 03 - Delta
04 - x86 (BCJ)
05 - PPC (Big Endian)
06 - IA64
07 - ARM (little endian)
08 - ARM Thumb (little endian)
09 - SPARC
21 - LZMA2
02.. - Common
03 Swap 03 Swap
- 2 Swap2 - 2 Swap2
- 4 Swap4 - 4 Swap4
04 Delta (subject to change)
03 - 7z 03.. - 7z
01 - LZMA 01 - LZMA
01 - Version 01 - Version
@ -60,11 +68,8 @@ List of defined IDs
7F - 7F -
01 - experimental methods. 01 - experimental methods.
80 - reserved for independent developers
E0 - Random IDs 04.. - Misc
04 - Misc
00 - Reserved 00 - Reserved
01 - Zip 01 - Zip
00 - Copy (not used). Use {00} instead 00 - Copy (not used). Use {00} instead
@ -72,7 +77,13 @@ List of defined IDs
06 - Implode 06 - Implode
08 - Deflate 08 - Deflate
09 - Deflate64 09 - Deflate64
10 - Imploding
12 - BZip2 (not used). Use {04 02 02} instead 12 - BZip2 (not used). Use {04 02 02} instead
14 - LZMA
60 - Jpeg
61 - WavPack
62 - PPMd
63 - wzAES
02 - BZip 02 - BZip
02 - BZip2 02 - BZip2
03 - Rar 03 - Rar
@ -91,7 +102,7 @@ List of defined IDs
02 - BZip2NSIS 02 - BZip2NSIS
06 - Crypto 06.. - Crypto
00 - 00 -
01 - AES 01 - AES
0x - AES-128 0x - AES-128
@ -118,7 +129,7 @@ List of defined IDs
07 - 7z 07 - 7z
01 - AES-256 + SHA-256 01 - AES-256 + SHA-256
07 - Hash (subject to change) 07.. - Hash (subject to change)
00 - 00 -
01 - CRC 01 - CRC
02 - SHA-1 02 - SHA-1

40
lzma/history.txt
View file

@ -1,6 +1,46 @@
HISTORY of the LZMA SDK HISTORY of the LZMA SDK
----------------------- -----------------------
9.18 beta 2010-11-02
-------------------------
- New small SFX module for installers (SfxSetup).
9.12 beta 2010-03-24
-------------------------
- The BUG in LZMA SDK 9.* was fixed: LZMA2 codec didn't work,
if more than 10 threads were used (or more than 20 threads in some modes).
9.11 beta 2010-03-15
-------------------------
- PPMd compression method support
9.09 2009-12-12
-------------------------
- The bug was fixed:
Utf16_To_Utf8 funstions in UTFConvert.cpp and 7zMain.c
incorrectly converted surrogate characters (the code >= 0x10000) to UTF-8.
- Some bugs were fixed
9.06 2009-08-17
-------------------------
- Some changes in ANSI-C 7z Decoder interfaces.
9.04 2009-05-30
-------------------------
- LZMA2 compression method support
- xz format support
4.65 2009-02-03
-------------------------
- Some minor fixes
4.63 2008-12-31 4.63 2008-12-31
------------------------- -------------------------
- Some minor fixes - Some minor fixes

34
lzma/lzma.txt
View file

@ -1,4 +1,4 @@
LZMA SDK 4.63 LZMA SDK 9.20
------------- -------------
LZMA SDK provides the documentation, samples, header files, libraries, LZMA SDK provides the documentation, samples, header files, libraries,
@ -20,6 +20,10 @@ LICENSE
LZMA SDK is written and placed in the public domain by Igor Pavlov. LZMA SDK is written and placed in the public domain by Igor Pavlov.
Some code in LZMA SDK is based on public domain code from another developers:
1) PPMd var.H (2001): Dmitry Shkarin
2) SHA-256: Wei Dai (Crypto++ library)
LZMA SDK Contents LZMA SDK Contents
----------------- -----------------
@ -33,7 +37,7 @@ LZMA SDK includes:
UNIX/Linux version UNIX/Linux version
------------------ ------------------
To compile C++ version of file->file LZMA encoding, go to directory To compile C++ version of file->file LZMA encoding, go to directory
C++/7zip/Compress/LZMA_Alone CPP/7zip/Bundles/LzmaCon
and call make to recompile it: and call make to recompile it:
make -f makefile.gcc clean all make -f makefile.gcc clean all
@ -49,6 +53,7 @@ lzma.txt - LZMA SDK description (this file)
7zC.txt - 7z ANSI-C Decoder description 7zC.txt - 7z ANSI-C Decoder description
methods.txt - Compression method IDs for .7z methods.txt - Compression method IDs for .7z
lzma.exe - Compiled file->file LZMA encoder/decoder for Windows lzma.exe - Compiled file->file LZMA encoder/decoder for Windows
7zr.exe - 7-Zip with 7z/lzma/xz support.
history.txt - history of the LZMA SDK history.txt - history of the LZMA SDK
@ -66,7 +71,7 @@ C/ - C files
LzmaEnc.* - LZMA encoding LzmaEnc.* - LZMA encoding
LzmaLib.* - LZMA Library for DLL calling LzmaLib.* - LZMA Library for DLL calling
Types.h - Basic types for another .c files Types.h - Basic types for another .c files
Threads.* - The code for multithreading. Threads.* - The code for multithreading.
LzmaLib - LZMA Library (.DLL for Windows) LzmaLib - LZMA Library (.DLL for Windows)
@ -86,12 +91,6 @@ CPP/ -- CPP files
Compress - files related to compression/decompression Compress - files related to compression/decompression
Copy - Copy coder
RangeCoder - Range Coder (special code of compression/decompression)
LZMA - LZMA compression/decompression on C++
LZMA_Alone - file->file LZMA compression/decompression
Branch - Filters for x86, IA-64, ARM, ARM-Thumb, PowerPC and SPARC code
Archive - files related to archiving Archive - files related to archiving
Common - common files for archive handling Common - common files for archive handling
@ -100,6 +99,7 @@ CPP/ -- CPP files
Bundles - Modules that are bundles of other modules Bundles - Modules that are bundles of other modules
Alone7z - 7zr.exe: Standalone version of 7z.exe that supports only 7z/LZMA/BCJ/BCJ2 Alone7z - 7zr.exe: Standalone version of 7z.exe that supports only 7z/LZMA/BCJ/BCJ2
LzmaCon - lzma.exe: LZMA compression/decompression
Format7zR - 7zr.dll: Reduced version of 7za.dll: extracting/compressing to 7z/LZMA/BCJ/BCJ2 Format7zR - 7zr.dll: Reduced version of 7za.dll: extracting/compressing to 7z/LZMA/BCJ/BCJ2
Format7zExtractR - 7zxr.dll: Reduced version of 7zxa.dll: extracting from 7z/LZMA/BCJ/BCJ2. Format7zExtractR - 7zxr.dll: Reduced version of 7zxa.dll: extracting from 7z/LZMA/BCJ/BCJ2.
@ -369,8 +369,8 @@ Interface:
propData - LZMA properties (5 bytes) propData - LZMA properties (5 bytes)
propSize - size of propData buffer (5 bytes) propSize - size of propData buffer (5 bytes)
finishMode - It has meaning only if the decoding reaches output limit (*destLen). finishMode - It has meaning only if the decoding reaches output limit (*destLen).
LZMA_FINISH_ANY - Decode just destLen bytes. LZMA_FINISH_ANY - Decode just destLen bytes.
LZMA_FINISH_END - Stream must be finished after (*destLen). LZMA_FINISH_END - Stream must be finished after (*destLen).
You can use LZMA_FINISH_END, when you know that You can use LZMA_FINISH_END, when you know that
current output buffer covers last bytes of stream. current output buffer covers last bytes of stream.
alloc - Memory allocator. alloc - Memory allocator.
@ -431,7 +431,7 @@ Memory Requirements:
{ {
... ...
int res = LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, int res = LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode); const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode);
... ...
} }
@ -527,7 +527,8 @@ static ISzAlloc g_Alloc = { SzAlloc, SzFree };
LzmaEnc_Destroy(enc, &g_Alloc, &g_Alloc); LzmaEnc_Destroy(enc, &g_Alloc, &g_Alloc);
If callback function return some error code, LzmaEnc_Encode also returns that code. If callback function return some error code, LzmaEnc_Encode also returns that code
or it can return the code like SZ_ERROR_READ, SZ_ERROR_WRITE or SZ_ERROR_PROGRESS.
Single-call RAM->RAM Compression Single-call RAM->RAM Compression
@ -549,8 +550,8 @@ Return code:
LZMA Defines Defines
------------ -------
_LZMA_SIZE_OPT - Enable some optimizations in LZMA Decoder to get smaller executable code. _LZMA_SIZE_OPT - Enable some optimizations in LZMA Decoder to get smaller executable code.
@ -562,6 +563,9 @@ _LZMA_UINT32_IS_ULONG - Define it if int is 16-bit on your compiler and long is
_LZMA_NO_SYSTEM_SIZE_T - Define it if you don't want to use size_t type. _LZMA_NO_SYSTEM_SIZE_T - Define it if you don't want to use size_t type.
_7ZIP_PPMD_SUPPPORT - Define it if you don't want to support PPMD method in AMSI-C .7z decoder.
C++ LZMA Encoder/Decoder C++ LZMA Encoder/Decoder
~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
C++ LZMA code use COM-like interfaces. So if you want to use it, C++ LZMA code use COM-like interfaces. So if you want to use it,