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8 Commits
4.65 ... 9.13

Author SHA1 Message Date
Igor Pavlov
3dacb5eb8a 9.13 2016-05-28 00:16:03 +01:00
Igor Pavlov
76b173af78 9.12 2016-05-28 00:16:02 +01:00
Igor Pavlov
993daef9cb 9.11 2016-05-28 00:16:02 +01:00
Igor Pavlov
db5eb6d638 9.10 beta 2016-05-28 00:16:02 +01:00
Igor Pavlov
1fbaf0aac5 9.09 beta 2016-05-28 00:16:01 +01:00
Igor Pavlov
2fed872194 9.07 beta 2016-05-28 00:16:01 +01:00
Igor Pavlov
c99f3ebdd6 9.06 beta 2016-05-28 00:16:00 +01:00
Igor Pavlov
829409452d 9.04 beta 2016-05-28 00:15:59 +01:00
783 changed files with 43794 additions and 21763 deletions

100
Asm/arm/7zCrcOpt.asm Executable file
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@@ -0,0 +1,100 @@
CODE32
EXPORT |CrcUpdateT4@16|
AREA |.text|, CODE, ARM
MACRO
CRC32_STEP_1
ldrb r4, [r1], #1
subs r2, r2, #1
eor r4, r4, r0
and r4, r4, #0xFF
ldr r4, [r3, +r4, lsl #2]
eor r0, r4, r0, lsr #8
MEND
MACRO
CRC32_STEP_4 $STREAM_WORD
eor r7, r7, r8
eor r7, r7, r9
eor r0, r0, r7
eor r0, r0, $STREAM_WORD
ldr $STREAM_WORD, [r1], #4
and r7, r0, #0xFF
and r8, r0, #0xFF00
and r9, r0, #0xFF0000
and r0, r0, #0xFF000000
ldr r7, [r6, +r7, lsl #2]
ldr r8, [r5, +r8, lsr #6]
ldr r9, [r4, +r9, lsr #14]
ldr r0, [r3, +r0, lsr #22]
MEND
|CrcUpdateT4@16| PROC
stmdb sp!, {r4-r11, lr}
cmp r2, #0
beq |$fin|
|$v1|
tst r1, #7
beq |$v2|
CRC32_STEP_1
bne |$v1|
|$v2|
cmp r2, #16
blo |$v3|
ldr r10, [r1], #4
ldr r11, [r1], #4
add r4, r3, #0x400
add r5, r3, #0x800
add r6, r3, #0xC00
mov r7, #0
mov r8, #0
mov r9, #0
sub r2, r2, #16
|$loop|
; pld [r1, #0x40]
CRC32_STEP_4 r10
CRC32_STEP_4 r11
subs r2, r2, #8
bhs |$loop|
sub r1, r1, #8
add r2, r2, #16
eor r7, r7, r8
eor r7, r7, r9
eor r0, r0, r7
|$v3|
cmp r2, #0
beq |$fin|
|$v4|
CRC32_STEP_1
bne |$v4|
|$fin|
ldmia sp!, {r4-r11, pc}
|CrcUpdateT4@16| ENDP
END

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@@ -1,101 +0,0 @@
.code
CRC1b macro
movzx EDX, BYTE PTR [RSI]
inc RSI
movzx EBX, AL
xor EDX, EBX
shr EAX, 8
xor EAX, [RDI + RDX * 4]
dec R8
endm
align 16
CrcUpdateT8 PROC
push RBX
push RSI
push RDI
push RBP
mov EAX, ECX
mov RSI, RDX
mov RDI, R9
test R8, R8
jz sl_end
sl:
test RSI, 7
jz sl_end
CRC1b
jnz sl
sl_end:
cmp R8, 16
jb crc_end
mov R9, R8
and R8, 7
add R8, 8
sub R9, R8
add R9, RSI
xor EAX, [RSI]
mov EBX, [RSI + 4]
movzx ECX, BL
align 16
main_loop:
mov EDX, [RDI + RCX*4 + 0C00h]
movzx EBP, BH
xor EDX, [RDI + RBP*4 + 0800h]
shr EBX, 16
movzx ECX, BL
xor EDX, [RSI + 8]
xor EDX, [RDI + RCX*4 + 0400h]
movzx ECX, AL
movzx EBP, BH
xor EDX, [RDI + RBP*4 + 0000h]
mov EBX, [RSI + 12]
xor EDX, [RDI + RCX*4 + 01C00h]
movzx EBP, AH
shr EAX, 16
movzx ECX, AL
xor EDX, [RDI + RBP*4 + 01800h]
movzx EBP, AH
mov EAX, [RDI + RCX*4 + 01400h]
add RSI, 8
xor EAX, [RDI + RBP*4 + 01000h]
movzx ECX, BL
xor EAX,EDX
cmp RSI, R9
jne main_loop
xor EAX, [RSI]
crc_end:
test R8, R8
jz fl_end
fl:
CRC1b
jnz fl
fl_end:
pop RBP
pop RDI
pop RSI
pop RBX
ret
CrcUpdateT8 ENDP
end

93
Asm/x86/7zAsm.asm Executable file
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@@ -0,0 +1,93 @@
; 7zAsm.asm -- ASM macros
; 2009-12-12 : Igor Pavlov : Public domain
MY_ASM_START macro
ifdef x64
.code
else
.386
.model flat
_TEXT$00 SEGMENT PARA PUBLIC 'CODE'
endif
endm
MY_PROC macro name:req, numParams:req
align 16
proc_numParams equ numParams
ifdef x64
proc_name equ name
name PROC
else
proc_fastcall_name equ @CatStr(@,name,@, %numParams * 4)
public proc_fastcall_name
proc_fastcall_name:
endif
endm
MY_ENDP macro
ifdef x64
ret
proc_name ENDP
else
ret (proc_numParams - 2) * 4
endif
endm
ifdef x64
REG_SIZE equ 8
else
REG_SIZE equ 4
endif
x0 equ EAX
x1 equ ECX
x2 equ EDX
x3 equ EBX
x4 equ ESP
x5 equ EBP
x6 equ ESI
x7 equ EDI
x0_L equ AL
x1_L equ CL
x2_L equ DL
x3_L equ BL
x0_H equ AH
x1_H equ CH
x2_H equ DH
x3_H equ BH
ifdef x64
r0 equ RAX
r1 equ RCX
r2 equ RDX
r3 equ RBX
r4 equ RSP
r5 equ RBP
r6 equ RSI
r7 equ RDI
else
r0 equ x0
r1 equ x1
r2 equ x2
r3 equ x3
r4 equ x4
r5 equ x5
r6 equ x6
r7 equ x7
endif
MY_PUSH_4_REGS macro
push r3
push r5
push r6
push r7
endm
MY_POP_4_REGS macro
pop r7
pop r6
pop r5
pop r3
endm

147
Asm/x86/7zCrcOpt.asm Executable file
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@@ -0,0 +1,147 @@
; 7zCrcOpt.asm -- CRC32 calculation : optimized version
; 2009-12-12 : Igor Pavlov : Public domain
include 7zAsm.asm
MY_ASM_START
rD equ r2
rN equ r7
ifdef x64
num_VAR equ r8
table_VAR equ r9
else
data_size equ (REG_SIZE * 5)
crc_table equ (REG_SIZE + data_size)
num_VAR equ [r4 + data_size]
table_VAR equ [r4 + crc_table]
endif
SRCDAT equ rN + rD + 4 *
CRC macro op:req, dest:req, src:req, t:req
op dest, DWORD PTR [r5 + src * 4 + 0400h * t]
endm
CRC_XOR macro dest:req, src:req, t:req
CRC xor, dest, src, t
endm
CRC_MOV macro dest:req, src:req, t:req
CRC mov, dest, src, t
endm
CRC1b macro
movzx x6, BYTE PTR [rD]
inc rD
movzx x3, x0_L
xor x6, x3
shr x0, 8
CRC xor, x0, r6, 0
dec rN
endm
MY_PROLOG macro crc_end:req
MY_PUSH_4_REGS
mov x0, x1
mov rN, num_VAR
mov r5, table_VAR
test rN, rN
jz crc_end
@@:
test rD, 7
jz @F
CRC1b
jnz @B
@@:
cmp rN, 16
jb crc_end
add rN, rD
mov num_VAR, rN
sub rN, 8
and rN, NOT 7
sub rD, rN
xor x0, [SRCDAT 0]
endm
MY_EPILOG macro crc_end:req
xor x0, [SRCDAT 0]
mov rD, rN
mov rN, num_VAR
sub rN, rD
crc_end:
test rN, rN
jz @F
CRC1b
jmp crc_end
@@:
MY_POP_4_REGS
endm
MY_PROC CrcUpdateT8, 4
MY_PROLOG crc_end_8
mov x1, [SRCDAT 1]
align 16
main_loop_8:
mov x6, [SRCDAT 2]
movzx x3, x1_L
CRC_XOR x6, r3, 3
movzx x3, x1_H
CRC_XOR x6, r3, 2
shr x1, 16
movzx x3, x1_L
movzx x1, x1_H
CRC_XOR x6, r3, 1
movzx x3, x0_L
CRC_XOR x6, r1, 0
mov x1, [SRCDAT 3]
CRC_XOR x6, r3, 7
movzx x3, x0_H
shr x0, 16
CRC_XOR x6, r3, 6
movzx x3, x0_L
CRC_XOR x6, r3, 5
movzx x3, x0_H
CRC_MOV x0, r3, 4
xor x0, x6
add rD, 8
jnz main_loop_8
MY_EPILOG crc_end_8
MY_ENDP
MY_PROC CrcUpdateT4, 4
MY_PROLOG crc_end_4
align 16
main_loop_4:
movzx x1, x0_L
movzx x3, x0_H
shr x0, 16
movzx x6, x0_H
and x0, 0FFh
CRC_MOV x1, r1, 3
xor x1, [SRCDAT 1]
CRC_XOR x1, r3, 2
CRC_XOR x1, r6, 0
CRC_XOR x1, r0, 1
movzx x0, x1_L
movzx x3, x1_H
shr x1, 16
movzx x6, x1_H
and x1, 0FFh
CRC_MOV x0, r0, 3
xor x0, [SRCDAT 2]
CRC_XOR x0, r3, 2
CRC_XOR x0, r6, 0
CRC_XOR x0, r1, 1
add rD, 8
jnz main_loop_4
MY_EPILOG crc_end_4
MY_ENDP
end

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@@ -1,101 +0,0 @@
.386
.model flat
_TEXT$00 SEGMENT PARA PUBLIC 'CODE'
CRC1b macro
movzx EDX, BYTE PTR [ESI]
inc ESI
movzx EBX, AL
xor EDX, EBX
shr EAX, 8
xor EAX, [EBP + EDX * 4]
dec EDI
endm
data_size equ (4 + 4*4)
crc_table equ (data_size + 4)
align 16
public @CrcUpdateT8@16
@CrcUpdateT8@16:
push EBX
push ESI
push EDI
push EBP
mov EAX, ECX
mov ESI, EDX
mov EDI, [ESP + data_size]
mov EBP, [ESP + crc_table]
test EDI, EDI
jz sl_end
sl:
test ESI, 7
jz sl_end
CRC1b
jnz sl
sl_end:
cmp EDI, 16
jb crc_end
mov [ESP + data_size], EDI
sub EDI, 8
and EDI, NOT 7
sub [ESP + data_size], EDI
add EDI, ESI
xor EAX, [ESI]
mov EBX, [ESI + 4]
movzx ECX, BL
align 16
main_loop:
mov EDX, [EBP + ECX*4 + 0C00h]
movzx ECX, BH
xor EDX, [EBP + ECX*4 + 0800h]
shr EBX, 16
movzx ECX, BL
xor EDX, [EBP + ECX*4 + 0400h]
xor EDX, [ESI + 8]
movzx ECX, AL
movzx EBX, BH
xor EDX, [EBP + EBX*4 + 0000h]
mov EBX, [ESI + 12]
xor EDX, [EBP + ECX*4 + 01C00h]
movzx ECX, AH
add ESI, 8
shr EAX, 16
xor EDX, [EBP + ECX*4 + 01800h]
movzx ECX, AL
xor EDX, [EBP + ECX*4 + 01400h]
movzx ECX, AH
mov EAX, [EBP + ECX*4 + 01000h]
movzx ECX, BL
xor EAX,EDX
cmp ESI, EDI
jne main_loop
xor EAX, [ESI]
mov EDI, [ESP + data_size]
crc_end:
test EDI, EDI
jz fl_end
fl:
CRC1b
jnz fl
fl_end:
pop EBP
pop EDI
pop ESI
pop EBX
ret 8
end

237
Asm/x86/AesOpt.asm Executable file
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@@ -0,0 +1,237 @@
; AesOpt.asm -- Intel's AES.
; 2009-12-12 : Igor Pavlov : Public domain
include 7zAsm.asm
MY_ASM_START
ifndef x64
.xmm
endif
ifdef x64
num equ r8
else
num equ [r4 + REG_SIZE * 4]
endif
rD equ r2
rN equ r0
MY_PROLOG macro reg:req
ifdef x64
movdqa [r4 + 8], xmm6
movdqa [r4 + 8 + 16], xmm7
endif
push r3
push r5
push r6
mov rN, num
mov x6, [r1 + 16]
shl x6, 5
movdqa reg, [r1]
add r1, 32
endm
MY_EPILOG macro
pop r6
pop r5
pop r3
ifdef x64
movdqa xmm6, [r4 + 8]
movdqa xmm7, [r4 + 8 + 16]
endif
MY_ENDP
endm
ways equ 4
ways16 equ (ways * 16)
OP_W macro op, op2
i = 0
rept ways
op @CatStr(xmm,%i), op2
i = i + 1
endm
endm
LOAD_OP macro op:req, offs:req
op xmm0, [r1 + r3 offs]
endm
LOAD_OP_W macro op:req, offs:req
movdqa xmm7, [r1 + r3 offs]
OP_W op, xmm7
endm
; ---------- AES-CBC Decode ----------
CBC_DEC_UPDATE macro reg, offs
pxor reg, xmm6
movdqa xmm6, [rD + offs]
movdqa [rD + offs], reg
endm
DECODE macro op:req
op aesdec, +16
@@:
op aesdec, +0
op aesdec, -16
sub x3, 32
jnz @B
op aesdeclast, +0
endm
MY_PROC AesCbc_Decode_Intel, 3
MY_PROLOG xmm6
sub x6, 32
jmp check2
align 16
nextBlocks2:
mov x3, x6
OP_W movdqa, [rD + i * 16]
LOAD_OP_W pxor, +32
DECODE LOAD_OP_W
OP_W CBC_DEC_UPDATE, i * 16
add rD, ways16
check2:
sub rN, ways
jnc nextBlocks2
add rN, ways
jmp check
nextBlock:
mov x3, x6
movdqa xmm1, [rD]
LOAD_OP movdqa, +32
pxor xmm0, xmm1
DECODE LOAD_OP
pxor xmm0, xmm6
movdqa [rD], xmm0
movdqa xmm6, xmm1
add rD, 16
check:
sub rN, 1
jnc nextBlock
movdqa [r1 - 32], xmm6
MY_EPILOG
; ---------- AES-CBC Encode ----------
ENCODE macro op:req
op aesenc, -16
@@:
op aesenc, +0
op aesenc, +16
add r3, 32
jnz @B
op aesenclast, +0
endm
MY_PROC AesCbc_Encode_Intel, 3
MY_PROLOG xmm0
add r1, r6
neg r6
add r6, 32
jmp check_e
align 16
nextBlock_e:
mov r3, r6
pxor xmm0, [rD]
pxor xmm0, [r1 + r3 - 32]
ENCODE LOAD_OP
movdqa [rD], xmm0
add rD, 16
check_e:
sub rN, 1
jnc nextBlock_e
movdqa [r1 + r6 - 64], xmm0
MY_EPILOG
; ---------- AES-CTR ----------
XOR_UPD_1 macro reg, offs
pxor reg, [rD + offs]
endm
XOR_UPD_2 macro reg, offs
movdqa [rD + offs], reg
endm
MY_PROC AesCtr_Code_Intel, 3
MY_PROLOG xmm6
mov r5, r4
shr r5, 4
dec r5
shl r5, 4
mov DWORD PTR [r5], 1
mov DWORD PTR [r5 + 4], 0
mov DWORD PTR [r5 + 8], 0
mov DWORD PTR [r5 + 12], 0
add r1, r6
neg r6
add r6, 32
jmp check2_c
align 16
nextBlocks2_c:
movdqa xmm7, [r5]
i = 0
rept ways
paddq xmm6, xmm7
movdqa @CatStr(xmm,%i), xmm6
i = i + 1
endm
mov r3, r6
LOAD_OP_W pxor, -32
ENCODE LOAD_OP_W
OP_W XOR_UPD_1, i * 16
OP_W XOR_UPD_2, i * 16
add rD, ways16
check2_c:
sub rN, ways
jnc nextBlocks2_c
add rN, ways
jmp check_c
nextBlock_c:
paddq xmm6, [r5]
mov r3, r6
movdqa xmm0, [r1 + r3 - 32]
pxor xmm0, xmm6
ENCODE LOAD_OP
XOR_UPD_1 xmm0, 0
XOR_UPD_2 xmm0, 0
add rD, 16
check_c:
sub rN, 1
jnc nextBlock_c
movdqa [r1 + r6 - 64], xmm6
MY_EPILOG
end

203
C/7z.h Executable file
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@@ -0,0 +1,203 @@
/* 7z.h -- 7z interface
2010-03-11 : Igor Pavlov : Public domain */
#ifndef __7Z_H
#define __7Z_H
#include "7zBuf.h"
EXTERN_C_BEGIN
#define k7zStartHeaderSize 0x20
#define k7zSignatureSize 6
extern Byte k7zSignature[k7zSignatureSize];
#define k7zMajorVersion 0
enum EIdEnum
{
k7zIdEnd,
k7zIdHeader,
k7zIdArchiveProperties,
k7zIdAdditionalStreamsInfo,
k7zIdMainStreamsInfo,
k7zIdFilesInfo,
k7zIdPackInfo,
k7zIdUnpackInfo,
k7zIdSubStreamsInfo,
k7zIdSize,
k7zIdCRC,
k7zIdFolder,
k7zIdCodersUnpackSize,
k7zIdNumUnpackStream,
k7zIdEmptyStream,
k7zIdEmptyFile,
k7zIdAnti,
k7zIdName,
k7zIdCTime,
k7zIdATime,
k7zIdMTime,
k7zIdWinAttributes,
k7zIdComment,
k7zIdEncodedHeader,
k7zIdStartPos,
k7zIdDummy
};
typedef struct
{
UInt32 NumInStreams;
UInt32 NumOutStreams;
UInt64 MethodID;
CBuf Props;
} CSzCoderInfo;
void SzCoderInfo_Init(CSzCoderInfo *p);
void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc);
typedef struct
{
UInt32 InIndex;
UInt32 OutIndex;
} CSzBindPair;
typedef struct
{
CSzCoderInfo *Coders;
CSzBindPair *BindPairs;
UInt32 *PackStreams;
UInt64 *UnpackSizes;
UInt32 NumCoders;
UInt32 NumBindPairs;
UInt32 NumPackStreams;
int UnpackCRCDefined;
UInt32 UnpackCRC;
UInt32 NumUnpackStreams;
} CSzFolder;
void SzFolder_Init(CSzFolder *p);
UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex);
UInt32 SzFolder_GetNumOutStreams(CSzFolder *p);
UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
SRes SzFolder_Decode(const CSzFolder *folder, const UInt64 *packSizes,
ILookInStream *stream, UInt64 startPos,
Byte *outBuffer, size_t outSize, ISzAlloc *allocMain);
typedef struct
{
UInt32 Low;
UInt32 High;
} CNtfsFileTime;
typedef struct
{
CNtfsFileTime MTime;
UInt64 Size;
UInt32 Crc;
UInt32 Attrib;
Byte HasStream;
Byte IsDir;
Byte IsAnti;
Byte CrcDefined;
Byte MTimeDefined;
Byte AttribDefined;
} CSzFileItem;
void SzFile_Init(CSzFileItem *p);
typedef struct
{
UInt64 *PackSizes;
Byte *PackCRCsDefined;
UInt32 *PackCRCs;
CSzFolder *Folders;
CSzFileItem *Files;
UInt32 NumPackStreams;
UInt32 NumFolders;
UInt32 NumFiles;
} CSzAr;
void SzAr_Init(CSzAr *p);
void SzAr_Free(CSzAr *p, ISzAlloc *alloc);
/*
SzExtract extracts file from archive
*outBuffer must be 0 before first call for each new archive.
Extracting cache:
If you need to decompress more than one file, you can send
these values from previous call:
*blockIndex,
*outBuffer,
*outBufferSize
You can consider "*outBuffer" as cache of solid block. If your archive is solid,
it will increase decompression speed.
If you use external function, you can declare these 3 cache variables
(blockIndex, outBuffer, outBufferSize) as static in that external function.
Free *outBuffer and set *outBuffer to 0, if you want to flush cache.
*/
typedef struct
{
CSzAr db;
UInt64 startPosAfterHeader;
UInt64 dataPos;
UInt32 *FolderStartPackStreamIndex;
UInt64 *PackStreamStartPositions;
UInt32 *FolderStartFileIndex;
UInt32 *FileIndexToFolderIndexMap;
size_t *FileNameOffsets; /* in 2-byte steps */
CBuf FileNames; /* UTF-16-LE */
} CSzArEx;
void SzArEx_Init(CSzArEx *p);
void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc);
UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder);
int SzArEx_GetFolderFullPackSize(const CSzArEx *p, UInt32 folderIndex, UInt64 *resSize);
/*
if dest == NULL, the return value specifies the required size of the buffer,
in 16-bit characters, including the null-terminating character.
if dest != NULL, the return value specifies the number of 16-bit characters that
are written to the dest, including the null-terminating character. */
size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest);
SRes SzArEx_Extract(
const CSzArEx *db,
ILookInStream *inStream,
UInt32 fileIndex, /* index of file */
UInt32 *blockIndex, /* index of solid block */
Byte **outBuffer, /* pointer to pointer to output buffer (allocated with allocMain) */
size_t *outBufferSize, /* buffer size for output buffer */
size_t *offset, /* offset of stream for required file in *outBuffer */
size_t *outSizeProcessed, /* size of file in *outBuffer */
ISzAlloc *allocMain,
ISzAlloc *allocTemp);
/*
SzArEx_Open Errors:
SZ_ERROR_NO_ARCHIVE
SZ_ERROR_ARCHIVE
SZ_ERROR_UNSUPPORTED
SZ_ERROR_MEM
SZ_ERROR_CRC
SZ_ERROR_INPUT_EOF
SZ_ERROR_FAIL
*/
SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, ISzAlloc *allocMain, ISzAlloc *allocTemp);
EXTERN_C_END
#endif

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@@ -1,11 +1,15 @@
/* 7zBuf.h -- Byte Buffer
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __7Z_BUF_H
#define __7Z_BUF_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct
{
Byte *data;
@@ -28,4 +32,8 @@ void DynBuf_SeekToBeg(CDynBuf *p);
int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc);
void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,35 +1,74 @@
/* 7zCrc.c -- CRC32 calculation
2008-08-05
Igor Pavlov
Public domain */
2009-11-23 : Igor Pavlov : Public domain */
#include "7zCrc.h"
#include "CpuArch.h"
#define kCrcPoly 0xEDB88320
UInt32 g_CrcTable[256];
void MY_FAST_CALL CrcGenerateTable(void)
#ifdef MY_CPU_LE
#define CRC_NUM_TABLES 8
#else
#define CRC_NUM_TABLES 1
#endif
typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
static CRC_FUNC g_CrcUpdate;
UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
#if CRC_NUM_TABLES == 1
#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
static UInt32 MY_FAST_CALL CrcUpdateT1(UInt32 v, const void *data, size_t size, const UInt32 *table)
{
const Byte *p = (const Byte *)data;
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
}
#else
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
#endif
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
{
return g_CrcUpdate(v, data, size, g_CrcTable);
}
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size)
{
return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL;
}
void MY_FAST_CALL CrcGenerateTable()
{
UInt32 i;
for (i = 0; i < 256; i++)
{
UInt32 r = i;
int j;
unsigned j;
for (j = 0; j < 8; j++)
r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
g_CrcTable[i] = r;
}
}
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
{
const Byte *p = (const Byte *)data;
for (; size > 0 ; size--, p++)
v = CRC_UPDATE_BYTE(v, *p);
return v;
}
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size)
{
return CrcUpdate(CRC_INIT_VAL, data, size) ^ 0xFFFFFFFF;
#if CRC_NUM_TABLES == 1
g_CrcUpdate = CrcUpdateT1;
#else
for (; i < 256 * CRC_NUM_TABLES; i++)
{
UInt32 r = g_CrcTable[i - 256];
g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
}
g_CrcUpdate = CrcUpdateT4;
#ifdef MY_CPU_X86_OR_AMD64
if (!CPU_Is_InOrder())
g_CrcUpdate = CrcUpdateT8;
#endif
#endif
}

View File

@@ -1,24 +1,25 @@
/* 7zCrc.h -- CRC32 calculation
2008-03-13
Igor Pavlov
Public domain */
2009-11-21 : Igor Pavlov : Public domain */
#ifndef __7Z_CRC_H
#define __7Z_CRC_H
#include <stddef.h>
#include "Types.h"
EXTERN_C_BEGIN
extern UInt32 g_CrcTable[];
/* Call CrcGenerateTable one time before other CRC functions */
void MY_FAST_CALL CrcGenerateTable(void);
#define CRC_INIT_VAL 0xFFFFFFFF
#define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)
#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
EXTERN_C_END
#endif

34
C/7zCrcOpt.c Executable file
View File

@@ -0,0 +1,34 @@
/* 7zCrcOpt.c -- CRC32 calculation : optimized version
2009-11-23 : Igor Pavlov : Public domain */
#include "CpuArch.h"
#ifdef MY_CPU_LE
#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table)
{
const Byte *p = (const Byte *)data;
for (; size > 0 && ((unsigned)(ptrdiff_t)p & 3) != 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
for (; size >= 4; size -= 4, p += 4)
{
v ^= *(const UInt32 *)p;
v =
table[0x300 + (v & 0xFF)] ^
table[0x200 + ((v >> 8) & 0xFF)] ^
table[0x100 + ((v >> 16) & 0xFF)] ^
table[0x000 + ((v >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
}
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table)
{
return CrcUpdateT4(v, data, size, table);
}
#endif

View File

@@ -1,43 +0,0 @@
/* 7zCrcT8.c -- CRC32 calculation with 8 tables
2008-03-19
Igor Pavlov
Public domain */
#include "7zCrc.h"
#define kCrcPoly 0xEDB88320
#define CRC_NUM_TABLES 8
UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
void MY_FAST_CALL CrcGenerateTable()
{
UInt32 i;
for (i = 0; i < 256; i++)
{
UInt32 r = i;
int j;
for (j = 0; j < 8; j++)
r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
g_CrcTable[i] = r;
}
#if CRC_NUM_TABLES > 1
for (; i < 256 * CRC_NUM_TABLES; i++)
{
UInt32 r = g_CrcTable[i - 256];
g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
}
#endif
}
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
{
return CrcUpdateT8(v, data, size, g_CrcTable);
}
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size)
{
return CrcUpdateT8(CRC_INIT_VAL, data, size, g_CrcTable) ^ 0xFFFFFFFF;
}

View File

@@ -1,18 +1,125 @@
/* 7zDecode.c -- Decoding from 7z folder
2008-11-23 : Igor Pavlov : Public domain */
/* 7zDec.c -- Decoding from 7z folder
2010-03-15 : Igor Pavlov : Public domain */
#include <string.h>
#include "../../Bcj2.h"
#include "../../Bra.h"
#include "../../LzmaDec.h"
#include "7zDecode.h"
/* #define _7ZIP_PPMD_SUPPPORT */
#include "7z.h"
#include "Bcj2.h"
#include "Bra.h"
#include "CpuArch.h"
#include "LzmaDec.h"
#include "Lzma2Dec.h"
#ifdef _7ZIP_PPMD_SUPPPORT
#include "Ppmd7.h"
#endif
#define k_Copy 0
#define k_LZMA2 0x21
#define k_LZMA 0x30101
#define k_BCJ 0x03030103
#define k_BCJ2 0x0303011B
#ifdef _7ZIP_PPMD_SUPPPORT
#define k_PPMD 0x30401
typedef struct
{
IByteIn p;
const Byte *cur;
const Byte *end;
const Byte *begin;
UInt64 processed;
Bool extra;
SRes res;
ILookInStream *inStream;
} CByteInToLook;
static Byte ReadByte(void *pp)
{
CByteInToLook *p = (CByteInToLook *)pp;
if (p->cur != p->end)
return *p->cur++;
if (p->res == SZ_OK)
{
size_t size = p->cur - p->begin;
p->processed += size;
p->res = p->inStream->Skip(p->inStream, size);
size = (1 << 25);
p->res = p->inStream->Look(p->inStream, (const void **)&p->begin, &size);
p->cur = p->begin;
p->end = p->begin + size;
if (size != 0)
return *p->cur++;;
}
p->extra = True;
return 0;
}
static SRes SzDecodePpmd(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
{
CPpmd7 ppmd;
CByteInToLook s;
SRes res = SZ_OK;
s.p.Read = ReadByte;
s.inStream = inStream;
s.begin = s.end = s.cur = NULL;
s.extra = False;
s.res = SZ_OK;
s.processed = 0;
if (coder->Props.size != 5)
return SZ_ERROR_UNSUPPORTED;
{
unsigned order = coder->Props.data[0];
UInt32 memSize = GetUi32(coder->Props.data + 1);
if (order < PPMD7_MIN_ORDER ||
order > PPMD7_MAX_ORDER ||
memSize < PPMD7_MIN_MEM_SIZE ||
memSize > PPMD7_MAX_MEM_SIZE)
return SZ_ERROR_UNSUPPORTED;
Ppmd7_Construct(&ppmd);
if (!Ppmd7_Alloc(&ppmd, memSize, allocMain))
return SZ_ERROR_MEM;
Ppmd7_Init(&ppmd, order);
}
{
CPpmd7z_RangeDec rc;
Ppmd7z_RangeDec_CreateVTable(&rc);
rc.Stream = &s.p;
if (!Ppmd7z_RangeDec_Init(&rc))
res = SZ_ERROR_DATA;
else if (s.extra)
res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);
else
{
SizeT i;
for (i = 0; i < outSize; i++)
{
int sym = Ppmd7_DecodeSymbol(&ppmd, &rc.p);
if (s.extra || sym < 0)
break;
outBuffer[i] = (Byte)sym;
}
if (i != outSize)
res = (s.res != SZ_OK ? s.res : SZ_ERROR_DATA);
else if (s.processed + (s.cur - s.begin) != inSize || !Ppmd7z_RangeDec_IsFinishedOK(&rc))
res = SZ_ERROR_DATA;
}
}
Ppmd7_Free(&ppmd, allocMain);
return res;
}
#endif
static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
{
@@ -31,7 +138,7 @@ static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look((void *)inStream, (void **)&inBuf, &lookahead);
res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
if (res != SZ_OK)
break;
@@ -61,6 +168,55 @@ static SRes SzDecodeLzma(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inSt
return res;
}
static SRes SzDecodeLzma2(CSzCoderInfo *coder, UInt64 inSize, ILookInStream *inStream,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
{
CLzma2Dec state;
SRes res = SZ_OK;
Lzma2Dec_Construct(&state);
if (coder->Props.size != 1)
return SZ_ERROR_DATA;
RINOK(Lzma2Dec_AllocateProbs(&state, coder->Props.data[0], allocMain));
state.decoder.dic = outBuffer;
state.decoder.dicBufSize = outSize;
Lzma2Dec_Init(&state);
for (;;)
{
Byte *inBuf = NULL;
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look((void *)inStream, (const void **)&inBuf, &lookahead);
if (res != SZ_OK)
break;
{
SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos;
ELzmaStatus status;
res = Lzma2Dec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
lookahead -= inProcessed;
inSize -= inProcessed;
if (res != SZ_OK)
break;
if (state.decoder.dicPos == state.decoder.dicBufSize || (inProcessed == 0 && dicPos == state.decoder.dicPos))
{
if (state.decoder.dicBufSize != outSize || lookahead != 0 ||
(status != LZMA_STATUS_FINISHED_WITH_MARK))
res = SZ_ERROR_DATA;
break;
}
res = inStream->Skip((void *)inStream, inProcessed);
if (res != SZ_OK)
break;
}
}
Lzma2Dec_FreeProbs(&state, allocMain);
return res;
}
static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer)
{
while (inSize > 0)
@@ -69,7 +225,7 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
size_t curSize = (1 << 18);
if (curSize > inSize)
curSize = (size_t)inSize;
RINOK(inStream->Look((void *)inStream, (void **)&inBuf, &curSize));
RINOK(inStream->Look((void *)inStream, (const void **)&inBuf, &curSize));
if (curSize == 0)
return SZ_ERROR_INPUT_EOF;
memcpy(outBuffer, inBuf, curSize);
@@ -80,16 +236,38 @@ static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer
return SZ_OK;
}
#define IS_UNSUPPORTED_METHOD(m) ((m) != k_Copy && (m) != k_LZMA)
#define IS_UNSUPPORTED_CODER(c) (IS_UNSUPPORTED_METHOD(c.MethodID) || c.NumInStreams != 1 || c.NumOutStreams != 1)
#define IS_NO_BCJ(c) (c.MethodID != k_BCJ || c.NumInStreams != 1 || c.NumOutStreams != 1)
#define IS_NO_BCJ2(c) (c.MethodID != k_BCJ2 || c.NumInStreams != 4 || c.NumOutStreams != 1)
static Bool IS_MAIN_METHOD(UInt32 m)
{
switch(m)
{
case k_Copy:
case k_LZMA:
case k_LZMA2:
#ifdef _7ZIP_PPMD_SUPPPORT
case k_PPMD:
#endif
return True;
}
return False;
}
SRes CheckSupportedFolder(const CSzFolder *f)
static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)
{
return
c->NumInStreams == 1 &&
c->NumOutStreams == 1 &&
c->MethodID <= (UInt32)0xFFFFFFFF &&
IS_MAIN_METHOD((UInt32)c->MethodID);
}
#define IS_BCJ(c) ((c)->MethodID == k_BCJ && (c)->NumInStreams == 1 && (c)->NumOutStreams == 1)
#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumInStreams == 4 && (c)->NumOutStreams == 1)
static SRes CheckSupportedFolder(const CSzFolder *f)
{
if (f->NumCoders < 1 || f->NumCoders > 4)
return SZ_ERROR_UNSUPPORTED;
if (IS_UNSUPPORTED_CODER(f->Coders[0]))
if (!IS_SUPPORTED_CODER(&f->Coders[0]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumCoders == 1)
{
@@ -99,7 +277,7 @@ SRes CheckSupportedFolder(const CSzFolder *f)
}
if (f->NumCoders == 2)
{
if (IS_NO_BCJ(f->Coders[1]) ||
if (!IS_BCJ(&f->Coders[1]) ||
f->NumPackStreams != 1 || f->PackStreams[0] != 0 ||
f->NumBindPairs != 1 ||
f->BindPairs[0].InIndex != 1 || f->BindPairs[0].OutIndex != 0)
@@ -108,9 +286,9 @@ SRes CheckSupportedFolder(const CSzFolder *f)
}
if (f->NumCoders == 4)
{
if (IS_UNSUPPORTED_CODER(f->Coders[1]) ||
IS_UNSUPPORTED_CODER(f->Coders[2]) ||
IS_NO_BCJ2(f->Coders[3]))
if (!IS_SUPPORTED_CODER(&f->Coders[1]) ||
!IS_SUPPORTED_CODER(&f->Coders[2]) ||
!IS_BCJ2(&f->Coders[3]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumPackStreams != 4 ||
f->PackStreams[0] != 2 ||
@@ -127,7 +305,7 @@ SRes CheckSupportedFolder(const CSzFolder *f)
return SZ_ERROR_UNSUPPORTED;
}
UInt64 GetSum(const UInt64 *values, UInt32 index)
static UInt64 GetSum(const UInt64 *values, UInt32 index)
{
UInt64 sum = 0;
UInt32 i;
@@ -136,7 +314,7 @@ UInt64 GetSum(const UInt64 *values, UInt32 index)
return sum;
}
SRes SzDecode2(const UInt64 *packSizes, const CSzFolder *folder,
static SRes SzFolder_Decode2(const CSzFolder *folder, const UInt64 *packSizes,
ILookInStream *inStream, UInt64 startPos,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain,
Byte *tempBuf[])
@@ -152,7 +330,7 @@ SRes SzDecode2(const UInt64 *packSizes, const CSzFolder *folder,
{
CSzCoderInfo *coder = &folder->Coders[ci];
if (coder->MethodID == k_Copy || coder->MethodID == k_LZMA)
if (IS_MAIN_METHOD((UInt32)coder->MethodID))
{
UInt32 si = 0;
UInt64 offset;
@@ -196,10 +374,22 @@ SRes SzDecode2(const UInt64 *packSizes, const CSzFolder *folder,
return SZ_ERROR_DATA;
RINOK(SzDecodeCopy(inSize, inStream, outBufCur));
}
else
else if (coder->MethodID == k_LZMA)
{
RINOK(SzDecodeLzma(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
}
else if (coder->MethodID == k_LZMA2)
{
RINOK(SzDecodeLzma2(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
}
else
{
#ifdef _7ZIP_PPMD_SUPPPORT
RINOK(SzDecodePpmd(coder, inSize, inStream, outBufCur, outSizeCur, allocMain));
#else
return SZ_ERROR_UNSUPPORTED;
#endif
}
}
else if (coder->MethodID == k_BCJ)
{
@@ -240,13 +430,13 @@ SRes SzDecode2(const UInt64 *packSizes, const CSzFolder *folder,
return SZ_OK;
}
SRes SzDecode(const UInt64 *packSizes, const CSzFolder *folder,
SRes SzFolder_Decode(const CSzFolder *folder, const UInt64 *packSizes,
ILookInStream *inStream, UInt64 startPos,
Byte *outBuffer, size_t outSize, ISzAlloc *allocMain)
{
Byte *tempBuf[3] = { 0, 0, 0};
int i;
SRes res = SzDecode2(packSizes, folder, inStream, startPos,
SRes res = SzFolder_Decode2(folder, packSizes, inStream, startPos,
outBuffer, (SizeT)outSize, allocMain, tempBuf);
for (i = 0; i < 3; i++)
IAlloc_Free(allocMain, tempBuf[i]);

View File

@@ -1,15 +1,15 @@
/* 7zFile.c -- File IO
2008-11-22 : Igor Pavlov : Public domain */
2009-11-24 : Igor Pavlov : Public domain */
#include "7zFile.h"
#ifndef USE_WINDOWS_FILE
#ifndef UNDER_CE
#include <errno.h>
#endif
#ifdef USE_WINDOWS_FILE
#else
/*
ReadFile and WriteFile functions in Windows have BUG:
@@ -34,6 +34,7 @@ void File_Construct(CSzFile *p)
#endif
}
#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
static WRes File_Open(CSzFile *p, const char *name, int writeMode)
{
#ifdef USE_WINDOWS_FILE
@@ -45,12 +46,32 @@ static WRes File_Open(CSzFile *p, const char *name, int writeMode)
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
#else
p->file = fopen(name, writeMode ? "wb+" : "rb");
return (p->file != 0) ? 0 : errno;
return (p->file != 0) ? 0 :
#ifdef UNDER_CE
2; /* ENOENT */
#else
errno;
#endif
#endif
}
WRes InFile_Open(CSzFile *p, const char *name) { return File_Open(p, name, 0); }
WRes OutFile_Open(CSzFile *p, const char *name) { return File_Open(p, name, 1); }
#endif
#ifdef USE_WINDOWS_FILE
static WRes File_OpenW(CSzFile *p, const WCHAR *name, int writeMode)
{
p->handle = CreateFileW(name,
writeMode ? GENERIC_WRITE : GENERIC_READ,
FILE_SHARE_READ, NULL,
writeMode ? CREATE_ALWAYS : OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
}
WRes InFile_OpenW(CSzFile *p, const WCHAR *name) { return File_OpenW(p, name, 0); }
WRes OutFile_OpenW(CSzFile *p, const WCHAR *name) { return File_OpenW(p, name, 1); }
#endif
WRes File_Close(CSzFile *p)
{

View File

@@ -1,5 +1,5 @@
/* 7zFile.h -- File IO
2008-11-22 : Igor Pavlov : Public domain */
2009-11-24 : Igor Pavlov : Public domain */
#ifndef __7Z_FILE_H
#define __7Z_FILE_H
@@ -16,6 +16,7 @@
#include "Types.h"
EXTERN_C_BEGIN
/* ---------- File ---------- */
@@ -29,8 +30,14 @@ typedef struct
} CSzFile;
void File_Construct(CSzFile *p);
#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
WRes InFile_Open(CSzFile *p, const char *name);
WRes OutFile_Open(CSzFile *p, const char *name);
#endif
#ifdef USE_WINDOWS_FILE
WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
#endif
WRes File_Close(CSzFile *p);
/* reads max(*size, remain file's size) bytes */
@@ -71,4 +78,6 @@ typedef struct
void FileOutStream_CreateVTable(CFileOutStream *p);
EXTERN_C_END
#endif

View File

@@ -1,17 +1,134 @@
/* 7zIn.c -- 7z Input functions
2008-12-31 : Igor Pavlov : Public domain */
2010-03-11 : Igor Pavlov : Public domain */
#include "../../7zCrc.h"
#include "../../CpuArch.h"
#include <string.h>
#include "7zDecode.h"
#include "7zIn.h"
#include "7z.h"
#include "7zCrc.h"
#include "CpuArch.h"
Byte k7zSignature[k7zSignatureSize] = {'7', 'z', 0xBC, 0xAF, 0x27, 0x1C};
#define RINOM(x) { if ((x) == 0) return SZ_ERROR_MEM; }
#define NUM_FOLDER_CODERS_MAX 32
#define NUM_CODER_STREAMS_MAX 32
void SzCoderInfo_Init(CSzCoderInfo *p)
{
Buf_Init(&p->Props);
}
void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc)
{
Buf_Free(&p->Props, alloc);
SzCoderInfo_Init(p);
}
void SzFolder_Init(CSzFolder *p)
{
p->Coders = 0;
p->BindPairs = 0;
p->PackStreams = 0;
p->UnpackSizes = 0;
p->NumCoders = 0;
p->NumBindPairs = 0;
p->NumPackStreams = 0;
p->UnpackCRCDefined = 0;
p->UnpackCRC = 0;
p->NumUnpackStreams = 0;
}
void SzFolder_Free(CSzFolder *p, ISzAlloc *alloc)
{
UInt32 i;
if (p->Coders)
for (i = 0; i < p->NumCoders; i++)
SzCoderInfo_Free(&p->Coders[i], alloc);
IAlloc_Free(alloc, p->Coders);
IAlloc_Free(alloc, p->BindPairs);
IAlloc_Free(alloc, p->PackStreams);
IAlloc_Free(alloc, p->UnpackSizes);
SzFolder_Init(p);
}
UInt32 SzFolder_GetNumOutStreams(CSzFolder *p)
{
UInt32 result = 0;
UInt32 i;
for (i = 0; i < p->NumCoders; i++)
result += p->Coders[i].NumOutStreams;
return result;
}
int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex)
{
UInt32 i;
for (i = 0; i < p->NumBindPairs; i++)
if (p->BindPairs[i].InIndex == inStreamIndex)
return i;
return -1;
}
int SzFolder_FindBindPairForOutStream(CSzFolder *p, UInt32 outStreamIndex)
{
UInt32 i;
for (i = 0; i < p->NumBindPairs; i++)
if (p->BindPairs[i].OutIndex == outStreamIndex)
return i;
return -1;
}
UInt64 SzFolder_GetUnpackSize(CSzFolder *p)
{
int i = (int)SzFolder_GetNumOutStreams(p);
if (i == 0)
return 0;
for (i--; i >= 0; i--)
if (SzFolder_FindBindPairForOutStream(p, i) < 0)
return p->UnpackSizes[i];
/* throw 1; */
return 0;
}
void SzFile_Init(CSzFileItem *p)
{
p->HasStream = 1;
p->IsDir = 0;
p->IsAnti = 0;
p->CrcDefined = 0;
p->MTimeDefined = 0;
}
void SzAr_Init(CSzAr *p)
{
p->PackSizes = 0;
p->PackCRCsDefined = 0;
p->PackCRCs = 0;
p->Folders = 0;
p->Files = 0;
p->NumPackStreams = 0;
p->NumFolders = 0;
p->NumFiles = 0;
}
void SzAr_Free(CSzAr *p, ISzAlloc *alloc)
{
UInt32 i;
if (p->Folders)
for (i = 0; i < p->NumFolders; i++)
SzFolder_Free(&p->Folders[i], alloc);
IAlloc_Free(alloc, p->PackSizes);
IAlloc_Free(alloc, p->PackCRCsDefined);
IAlloc_Free(alloc, p->PackCRCs);
IAlloc_Free(alloc, p->Folders);
IAlloc_Free(alloc, p->Files);
SzAr_Init(p);
}
void SzArEx_Init(CSzArEx *p)
{
SzAr_Init(&p->db);
@@ -19,6 +136,8 @@ void SzArEx_Init(CSzArEx *p)
p->PackStreamStartPositions = 0;
p->FolderStartFileIndex = 0;
p->FileIndexToFolderIndexMap = 0;
p->FileNameOffsets = 0;
Buf_Init(&p->FileNames);
}
void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc)
@@ -27,6 +146,10 @@ void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc)
IAlloc_Free(alloc, p->PackStreamStartPositions);
IAlloc_Free(alloc, p->FolderStartFileIndex);
IAlloc_Free(alloc, p->FileIndexToFolderIndexMap);
IAlloc_Free(alloc, p->FileNameOffsets);
Buf_Free(&p->FileNames, alloc);
SzAr_Free(&p->db, alloc);
SzArEx_Init(p);
}
@@ -488,11 +611,11 @@ static SRes SzGetNextFolderItem(CSzData *sd, CSzFolder *folder, ISzAlloc *alloc)
return SZ_ERROR_UNSUPPORTED;
folder->NumBindPairs = numBindPairs = numOutStreams - 1;
MY_ALLOC(CBindPair, folder->BindPairs, (size_t)numBindPairs, alloc);
MY_ALLOC(CSzBindPair, folder->BindPairs, (size_t)numBindPairs, alloc);
for (i = 0; i < numBindPairs; i++)
{
CBindPair *bp = folder->BindPairs + i;
CSzBindPair *bp = folder->BindPairs + i;
RINOK(SzReadNumber32(sd, &bp->InIndex));
RINOK(SzReadNumber32(sd, &bp->OutIndex));
}
@@ -780,81 +903,38 @@ static SRes SzReadStreamsInfo(
}
}
Byte kUtf8Limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest)
{
size_t len = p->FileNameOffsets[fileIndex + 1] - p->FileNameOffsets[fileIndex];
if (dest != 0)
{
size_t i;
const Byte *src = p->FileNames.data + (p->FileNameOffsets[fileIndex] * 2);
for (i = 0; i < len; i++)
dest[i] = GetUi16(src + i * 2);
}
return len;
}
static SRes SzReadFileNames(CSzData *sd, UInt32 numFiles, CSzFileItem *files, ISzAlloc *alloc)
static SRes SzReadFileNames(const Byte *p, size_t size, UInt32 numFiles, size_t *sizes)
{
UInt32 i;
size_t pos = 0;
for (i = 0; i < numFiles; i++)
{
UInt32 len = 0;
UInt32 pos = 0;
CSzFileItem *file = files + i;
while (pos + 2 <= sd->Size)
sizes[i] = pos;
for (;;)
{
int numAdds;
UInt32 value = (UInt32)(sd->Data[pos] | (((UInt32)sd->Data[pos + 1]) << 8));
pos += 2;
len++;
if (value == 0)
if (pos >= size)
return SZ_ERROR_ARCHIVE;
if (p[pos * 2] == 0 && p[pos * 2 + 1] == 0)
break;
if (value < 0x80)
continue;
if (value >= 0xD800 && value < 0xE000)
{
UInt32 c2;
if (value >= 0xDC00)
return SZ_ERROR_ARCHIVE;
if (pos + 2 > sd->Size)
return SZ_ERROR_ARCHIVE;
c2 = (UInt32)(sd->Data[pos] | (((UInt32)sd->Data[pos + 1]) << 8));
pos += 2;
if (c2 < 0xDC00 || c2 >= 0xE000)
return SZ_ERROR_ARCHIVE;
value = ((value - 0xD800) << 10) | (c2 - 0xDC00);
}
for (numAdds = 1; numAdds < 5; numAdds++)
if (value < (((UInt32)1) << (numAdds * 5 + 6)))
break;
len += numAdds;
}
MY_ALLOC(char, file->Name, (size_t)len, alloc);
len = 0;
while (2 <= sd->Size)
{
int numAdds;
UInt32 value = (UInt32)(sd->Data[0] | (((UInt32)sd->Data[1]) << 8));
SzSkeepDataSize(sd, 2);
if (value < 0x80)
{
file->Name[len++] = (char)value;
if (value == 0)
break;
continue;
}
if (value >= 0xD800 && value < 0xE000)
{
UInt32 c2 = (UInt32)(sd->Data[0] | (((UInt32)sd->Data[1]) << 8));
SzSkeepDataSize(sd, 2);
value = ((value - 0xD800) << 10) | (c2 - 0xDC00);
}
for (numAdds = 1; numAdds < 5; numAdds++)
if (value < (((UInt32)1) << (numAdds * 5 + 6)))
break;
file->Name[len++] = (char)(kUtf8Limits[numAdds - 1] + (value >> (6 * numAdds)));
do
{
numAdds--;
file->Name[len++] = (char)(0x80 + ((value >> (6 * numAdds)) & 0x3F));
}
while (numAdds > 0);
len += numAdds;
pos++;
}
pos++;
}
return SZ_OK;
sizes[i] = pos;
return (pos == size) ? SZ_OK : SZ_ERROR_ARCHIVE;
}
static SRes SzReadHeader2(
@@ -920,7 +1000,8 @@ static SRes SzReadHeader2(
if (type == k7zIdEnd)
break;
RINOK(SzReadNumber(sd, &size));
if (size > sd->Size)
return SZ_ERROR_ARCHIVE;
if ((UInt64)(int)type != type)
{
RINOK(SzSkeepDataSize(sd, size));
@@ -930,8 +1011,17 @@ static SRes SzReadHeader2(
{
case k7zIdName:
{
size_t namesSize;
RINOK(SzReadSwitch(sd));
RINOK(SzReadFileNames(sd, numFiles, files, allocMain))
namesSize = (size_t)size - 1;
if ((namesSize & 1) != 0)
return SZ_ERROR_ARCHIVE;
if (!Buf_Create(&p->FileNames, namesSize, allocMain))
return SZ_ERROR_MEM;
MY_ALLOC(size_t, p->FileNameOffsets, numFiles + 1, allocMain);
memcpy(p->FileNames.data, sd->Data, namesSize);
RINOK(SzReadFileNames(sd->Data, namesSize >> 1, numFiles, p->FileNameOffsets))
RINOK(SzSkeepDataSize(sd, namesSize));
break;
}
case k7zIdEmptyStream:
@@ -948,6 +1038,25 @@ static SRes SzReadHeader2(
RINOK(SzReadBoolVector(sd, numEmptyStreams, emptyFileVector, allocTemp));
break;
}
case k7zIdWinAttributes:
{
RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
RINOK(SzReadSwitch(sd));
for (i = 0; i < numFiles; i++)
{
CSzFileItem *f = &files[i];
Byte defined = (*lwtVector)[i];
f->AttribDefined = defined;
f->Attrib = 0;
if (defined)
{
RINOK(SzReadUInt32(sd, &f->Attrib));
}
}
IAlloc_Free(allocTemp, *lwtVector);
*lwtVector = NULL;
break;
}
case k7zIdMTime:
{
RINOK(SzReadBoolVector2(sd, numFiles, lwtVector, allocTemp));
@@ -964,6 +1073,8 @@ static SRes SzReadHeader2(
RINOK(SzReadUInt32(sd, &f->MTime.High));
}
}
IAlloc_Free(allocTemp, *lwtVector);
*lwtVector = NULL;
break;
}
default:
@@ -988,8 +1099,8 @@ static SRes SzReadHeader2(
{
file->IsDir = 0;
file->Size = (*unpackSizes)[sizeIndex];
file->FileCRC = (*digests)[sizeIndex];
file->FileCRCDefined = (Byte)(*digestsDefined)[sizeIndex];
file->Crc = (*digests)[sizeIndex];
file->CrcDefined = (Byte)(*digestsDefined)[sizeIndex];
sizeIndex++;
}
else
@@ -1000,7 +1111,8 @@ static SRes SzReadHeader2(
file->IsDir = (Byte)((*emptyFileVector)[emptyFileIndex] ? 0 : 1);
emptyFileIndex++;
file->Size = 0;
file->FileCRCDefined = 0;
file->Crc = 0;
file->CrcDefined = 0;
}
}
}
@@ -1066,7 +1178,7 @@ static SRes SzReadAndDecodePackedStreams2(
if (!Buf_Create(outBuffer, (size_t)unpackSize, allocTemp))
return SZ_ERROR_MEM;
res = SzDecode(p->PackSizes, folder,
res = SzFolder_Decode(folder, p->PackSizes,
inStream, dataStartPos,
outBuffer->data, (size_t)unpackSize, allocTemp);
RINOK(res);
@@ -1202,3 +1314,85 @@ SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, ISzAlloc *allocMain, ISzAl
SzArEx_Free(p, allocMain);
return res;
}
SRes SzArEx_Extract(
const CSzArEx *p,
ILookInStream *inStream,
UInt32 fileIndex,
UInt32 *blockIndex,
Byte **outBuffer,
size_t *outBufferSize,
size_t *offset,
size_t *outSizeProcessed,
ISzAlloc *allocMain,
ISzAlloc *allocTemp)
{
UInt32 folderIndex = p->FileIndexToFolderIndexMap[fileIndex];
SRes res = SZ_OK;
*offset = 0;
*outSizeProcessed = 0;
if (folderIndex == (UInt32)-1)
{
IAlloc_Free(allocMain, *outBuffer);
*blockIndex = folderIndex;
*outBuffer = 0;
*outBufferSize = 0;
return SZ_OK;
}
if (*outBuffer == 0 || *blockIndex != folderIndex)
{
CSzFolder *folder = p->db.Folders + folderIndex;
UInt64 unpackSizeSpec = SzFolder_GetUnpackSize(folder);
size_t unpackSize = (size_t)unpackSizeSpec;
UInt64 startOffset = SzArEx_GetFolderStreamPos(p, folderIndex, 0);
if (unpackSize != unpackSizeSpec)
return SZ_ERROR_MEM;
*blockIndex = folderIndex;
IAlloc_Free(allocMain, *outBuffer);
*outBuffer = 0;
RINOK(LookInStream_SeekTo(inStream, startOffset));
if (res == SZ_OK)
{
*outBufferSize = unpackSize;
if (unpackSize != 0)
{
*outBuffer = (Byte *)IAlloc_Alloc(allocMain, unpackSize);
if (*outBuffer == 0)
res = SZ_ERROR_MEM;
}
if (res == SZ_OK)
{
res = SzFolder_Decode(folder,
p->db.PackSizes + p->FolderStartPackStreamIndex[folderIndex],
inStream, startOffset,
*outBuffer, unpackSize, allocTemp);
if (res == SZ_OK)
{
if (folder->UnpackCRCDefined)
{
if (CrcCalc(*outBuffer, unpackSize) != folder->UnpackCRC)
res = SZ_ERROR_CRC;
}
}
}
}
}
if (res == SZ_OK)
{
UInt32 i;
CSzFileItem *fileItem = p->db.Files + fileIndex;
*offset = 0;
for (i = p->FolderStartFileIndex[folderIndex]; i < fileIndex; i++)
*offset += (UInt32)p->db.Files[i].Size;
*outSizeProcessed = (size_t)fileItem->Size;
if (*offset + *outSizeProcessed > *outBufferSize)
return SZ_ERROR_FAIL;
if (fileItem->CrcDefined && CrcCalc(*outBuffer + *offset, *outSizeProcessed) != fileItem->Crc)
res = SZ_ERROR_CRC;
}
return res;
}

View File

@@ -1,5 +1,5 @@
/* 7zStream.c -- 7z Stream functions
2008-11-23 : Igor Pavlov : Public domain */
2010-03-11 : Igor Pavlov : Public domain */
#include <string.h>
@@ -39,7 +39,7 @@ SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset)
SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size)
{
void *lookBuf;
const void *lookBuf;
if (*size == 0)
return SZ_OK;
RINOK(stream->Look(stream, &lookBuf, size));
@@ -66,7 +66,7 @@ SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size)
return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
}
static SRes LookToRead_Look_Lookahead(void *pp, void **buf, size_t *size)
static SRes LookToRead_Look_Lookahead(void *pp, const void **buf, size_t *size)
{
SRes res = SZ_OK;
CLookToRead *p = (CLookToRead *)pp;
@@ -84,7 +84,7 @@ static SRes LookToRead_Look_Lookahead(void *pp, void **buf, size_t *size)
return res;
}
static SRes LookToRead_Look_Exact(void *pp, void **buf, size_t *size)
static SRes LookToRead_Look_Exact(void *pp, const void **buf, size_t *size)
{
SRes res = SZ_OK;
CLookToRead *p = (CLookToRead *)pp;

View File

@@ -1,7 +1,7 @@
#define MY_VER_MAJOR 4
#define MY_VER_MINOR 65
#define MY_VER_MAJOR 9
#define MY_VER_MINOR 13
#define MY_VER_BUILD 0
#define MY_VERSION "4.65"
#define MY_DATE "2009-02-03"
#define MY_VERSION "9.13 beta"
#define MY_DATE "2010-04-15"
#define MY_COPYRIGHT ": Igor Pavlov : Public domain"
#define MY_VERSION_COPYRIGHT_DATE MY_VERSION " " MY_COPYRIGHT " : " MY_DATE

158
C/Aes.c
View File

@@ -1,7 +1,5 @@
/* Aes.c -- AES encryption / decryption
2008-08-05
Igor Pavlov
Public domain */
2009-11-23 : Igor Pavlov : Public domain */
#include "Aes.h"
#include "CpuArch.h"
@@ -25,6 +23,18 @@ static Byte Sbox[256] = {
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16};
void MY_FAST_CALL AesCbc_Encode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Decode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCtr_Code(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Encode_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Decode_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCtr_Code_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
AES_CODE_FUNC g_AesCbc_Encode;
AES_CODE_FUNC g_AesCbc_Decode;
AES_CODE_FUNC g_AesCtr_Code;
static UInt32 D[256 * 4];
static Byte InvS[256];
@@ -49,7 +59,7 @@ void AesGenTables(void)
{
UInt32 a1 = Sbox[i];
UInt32 a2 = xtime(a1);
UInt32 a3 = xtime(a1) ^ a1;
UInt32 a3 = a2 ^ a1;
T[ i] = Ui32(a2, a1, a1, a3);
T[0x100 + i] = Ui32(a3, a2, a1, a1);
T[0x200 + i] = Ui32(a1, a3, a2, a1);
@@ -70,6 +80,17 @@ void AesGenTables(void)
D[0x300 + i] = Ui32(a9, aD, aB, aE);
}
}
g_AesCbc_Encode = AesCbc_Encode;
g_AesCbc_Decode = AesCbc_Decode;
g_AesCtr_Code = AesCtr_Code;
#ifdef MY_CPU_X86_OR_AMD64
if (CPU_Is_Aes_Supported())
{
g_AesCbc_Encode = AesCbc_Encode_Intel;
g_AesCbc_Decode = AesCbc_Decode_Intel;
g_AesCtr_Code = AesCtr_Code_Intel;
}
#endif
}
#define HT(i, x, s) (T + (x << 8))[gb ## x(s[(i + x) & 3])]
@@ -104,18 +125,16 @@ void AesGenTables(void)
#define FD(i, x) InvS[gb ## x(m[(i - x) & 3])]
#define FD4(i) dest[i] = Ui32(FD(i, 0), FD(i, 1), FD(i, 2), FD(i, 3)) ^ w[i];
void Aes_SetKeyEncode(CAes *p, const Byte *key, unsigned keySize)
void MY_FAST_CALL Aes_SetKey_Enc(UInt32 *w, const Byte *key, unsigned keySize)
{
unsigned i, wSize;
UInt32 *w;
wSize = keySize + 28;
keySize /= 4;
p->numRounds2 = keySize / 2 + 3;
wSize = (p->numRounds2 * 2 + 1) * 4;
w = p->rkey;
w[0] = ((UInt32)keySize / 2) + 3;
w += 4;
for (i = 0; i < keySize; i++, key += 4)
w[i] = Ui32(key[0], key[1], key[2], key[3]);
w[i] = GetUi32(key);
for (; i < wSize; i++)
{
@@ -129,13 +148,12 @@ void Aes_SetKeyEncode(CAes *p, const Byte *key, unsigned keySize)
}
}
void Aes_SetKeyDecode(CAes *p, const Byte *key, unsigned keySize)
void MY_FAST_CALL Aes_SetKey_Dec(UInt32 *w, const Byte *key, unsigned keySize)
{
unsigned i, num;
UInt32 *w;
Aes_SetKeyEncode(p, key, keySize);
num = p->numRounds2 * 8 - 4;
w = p->rkey + 4;
Aes_SetKey_Enc(w, key, keySize);
num = keySize + 20;
w += 8;
for (i = 0; i < num; i++)
{
UInt32 r = w[i];
@@ -147,10 +165,16 @@ void Aes_SetKeyDecode(CAes *p, const Byte *key, unsigned keySize)
}
}
static void AesEncode32(UInt32 *dest, const UInt32 *src, const UInt32 *w, unsigned numRounds2)
/* Aes_Encode and Aes_Decode functions work with little-endian words.
src and dest are pointers to 4 UInt32 words.
arc and dest can point to same block */
static void Aes_Encode(const UInt32 *w, UInt32 *dest, const UInt32 *src)
{
UInt32 s[4];
UInt32 m[4];
UInt32 numRounds2 = w[0];
w += 4;
s[0] = src[0] ^ w[0];
s[1] = src[1] ^ w[1];
s[2] = src[2] ^ w[2];
@@ -168,11 +192,12 @@ static void AesEncode32(UInt32 *dest, const UInt32 *src, const UInt32 *w, unsign
FT4(0); FT4(1); FT4(2); FT4(3);
}
static void AesDecode32(UInt32 *dest, const UInt32 *src, const UInt32 *w, unsigned numRounds2)
static void Aes_Decode(const UInt32 *w, UInt32 *dest, const UInt32 *src)
{
UInt32 s[4];
UInt32 m[4];
w += numRounds2 * 8;
UInt32 numRounds2 = w[0];
w += 4 + numRounds2 * 8;
s[0] = src[0] ^ w[0];
s[1] = src[1] ^ w[1];
s[2] = src[2] ^ w[2];
@@ -188,75 +213,70 @@ static void AesDecode32(UInt32 *dest, const UInt32 *src, const UInt32 *w, unsign
FD4(0); FD4(1); FD4(2); FD4(3);
}
void Aes_Encode32(const CAes *p, UInt32 *dest, const UInt32 *src)
{
AesEncode32(dest, src, p->rkey, p->numRounds2);
}
void Aes_Decode32(const CAes *p, UInt32 *dest, const UInt32 *src)
{
AesDecode32(dest, src, p->rkey, p->numRounds2);
}
void AesCbc_Init(CAesCbc *p, const Byte *iv)
void AesCbc_Init(UInt32 *p, const Byte *iv)
{
unsigned i;
for (i = 0; i < 4; i++)
p->prev[i] = GetUi32(iv + i * 4);
p[i] = GetUi32(iv + i * 4);
}
SizeT AesCbc_Encode(CAesCbc *p, Byte *data, SizeT size)
void MY_FAST_CALL AesCbc_Encode(UInt32 *p, Byte *data, size_t numBlocks)
{
SizeT i;
if (size == 0)
return 0;
if (size < AES_BLOCK_SIZE)
return AES_BLOCK_SIZE;
size -= AES_BLOCK_SIZE;
for (i = 0; i <= size; i += AES_BLOCK_SIZE, data += AES_BLOCK_SIZE)
for (; numBlocks != 0; numBlocks--, data += AES_BLOCK_SIZE)
{
p->prev[0] ^= GetUi32(data);
p->prev[1] ^= GetUi32(data + 4);
p->prev[2] ^= GetUi32(data + 8);
p->prev[3] ^= GetUi32(data + 12);
p[0] ^= GetUi32(data);
p[1] ^= GetUi32(data + 4);
p[2] ^= GetUi32(data + 8);
p[3] ^= GetUi32(data + 12);
AesEncode32(p->prev, p->prev, p->aes.rkey, p->aes.numRounds2);
Aes_Encode(p + 4, p, p);
SetUi32(data, p->prev[0]);
SetUi32(data + 4, p->prev[1]);
SetUi32(data + 8, p->prev[2]);
SetUi32(data + 12, p->prev[3]);
SetUi32(data, p[0]);
SetUi32(data + 4, p[1]);
SetUi32(data + 8, p[2]);
SetUi32(data + 12, p[3]);
}
return i;
}
SizeT AesCbc_Decode(CAesCbc *p, Byte *data, SizeT size)
void MY_FAST_CALL AesCbc_Decode(UInt32 *p, Byte *data, size_t numBlocks)
{
SizeT i;
UInt32 in[4], out[4];
if (size == 0)
return 0;
if (size < AES_BLOCK_SIZE)
return AES_BLOCK_SIZE;
size -= AES_BLOCK_SIZE;
for (i = 0; i <= size; i += AES_BLOCK_SIZE, data += AES_BLOCK_SIZE)
for (; numBlocks != 0; numBlocks--, data += AES_BLOCK_SIZE)
{
in[0] = GetUi32(data);
in[1] = GetUi32(data + 4);
in[2] = GetUi32(data + 8);
in[3] = GetUi32(data + 12);
Aes_Decode(p + 4, out, in);
SetUi32(data, p[0] ^ out[0]);
SetUi32(data + 4, p[1] ^ out[1]);
SetUi32(data + 8, p[2] ^ out[2]);
SetUi32(data + 12, p[3] ^ out[3]);
AesDecode32(out, in, p->aes.rkey, p->aes.numRounds2);
SetUi32(data, p->prev[0] ^ out[0]);
SetUi32(data + 4, p->prev[1] ^ out[1]);
SetUi32(data + 8, p->prev[2] ^ out[2]);
SetUi32(data + 12, p->prev[3] ^ out[3]);
p->prev[0] = in[0];
p->prev[1] = in[1];
p->prev[2] = in[2];
p->prev[3] = in[3];
p[0] = in[0];
p[1] = in[1];
p[2] = in[2];
p[3] = in[3];
}
}
void MY_FAST_CALL AesCtr_Code(UInt32 *p, Byte *data, size_t numBlocks)
{
for (; numBlocks != 0; numBlocks--)
{
UInt32 temp[4];
Byte buf[16];
int i;
if (++p[0] == 0)
p[1]++;
Aes_Encode(p + 4, temp, p);
SetUi32(buf, temp[0]);
SetUi32(buf + 4, temp[1]);
SetUi32(buf + 8, temp[2]);
SetUi32(buf + 12, temp[3]);
for (i = 0; i < 16; i++)
*data++ ^= buf[i];
}
return i;
}

52
C/Aes.h
View File

@@ -1,48 +1,38 @@
/* Aes.h -- AES encryption / decryption
2008-08-05
Igor Pavlov
Public domain */
2009-11-23 : Igor Pavlov : Public domain */
#ifndef __AES_H
#define __AES_H
#include "Types.h"
#define AES_BLOCK_SIZE 16
EXTERN_C_BEGIN
typedef struct
{
unsigned numRounds2; /* = numRounds / 2 */
UInt32 rkey[(14 + 1) * 4];
} CAes;
#define AES_BLOCK_SIZE 16
/* Call AesGenTables one time before other AES functions */
void AesGenTables(void);
/* UInt32 pointers must be 16-byte aligned */
/* 16-byte (4 * 32-bit words) blocks: 1 (IV) + 1 (keyMode) + 15 (AES-256 roundKeys) */
#define AES_NUM_IVMRK_WORDS ((1 + 1 + 15) * 4)
/* aes - 16-byte aligned pointer to keyMode+roundKeys sequence */
/* keySize = 16 or 24 or 32 (bytes) */
void Aes_SetKeyEncode(CAes *p, const Byte *key, unsigned keySize);
void Aes_SetKeyDecode(CAes *p, const Byte *key, unsigned keySize);
typedef void (MY_FAST_CALL *AES_SET_KEY_FUNC)(UInt32 *aes, const Byte *key, unsigned keySize);
void MY_FAST_CALL Aes_SetKey_Enc(UInt32 *aes, const Byte *key, unsigned keySize);
void MY_FAST_CALL Aes_SetKey_Dec(UInt32 *aes, const Byte *key, unsigned keySize);
/* Aes_Encode32 and Aes_Decode32 functions work with little-endian words.
src and dest are pointers to 4 UInt32 words.
arc and dest can point to same block */
void Aes_Encode32(const CAes *p, UInt32 *dest, const UInt32 *src);
void Aes_Decode32(const CAes *p, UInt32 *dest, const UInt32 *src);
/* ivAes - 16-byte aligned pointer to iv+keyMode+roundKeys sequence: UInt32[AES_NUM_IVMRK_WORDS] */
void AesCbc_Init(UInt32 *ivAes, const Byte *iv); /* iv size is AES_BLOCK_SIZE */
/* data - 16-byte aligned pointer to data */
/* numBlocks - the number of 16-byte blocks in data array */
typedef void (MY_FAST_CALL *AES_CODE_FUNC)(UInt32 *ivAes, Byte *data, size_t numBlocks);
extern AES_CODE_FUNC g_AesCbc_Encode;
extern AES_CODE_FUNC g_AesCbc_Decode;
extern AES_CODE_FUNC g_AesCtr_Code;
typedef struct
{
UInt32 prev[4];
CAes aes;
} CAesCbc;
void AesCbc_Init(CAesCbc *p, const Byte *iv); /* iv size is AES_BLOCK_SIZE */
/* AesCbc_Encode and AesCbc_Decode:
if (res <= size): Filter have converted res bytes
if (res > size): Filter have not converted anything. And it needs at
least res = AES_BLOCK_SIZE bytes to convert one block */
SizeT AesCbc_Encode(CAesCbc *p, Byte *data, SizeT size);
SizeT AesCbc_Decode(CAesCbc *p, Byte *data, SizeT size);
EXTERN_C_END
#endif

182
C/AesOpt.c Executable file
View File

@@ -0,0 +1,182 @@
/* AesOpt.c -- Intel's AES
2009-11-23 : Igor Pavlov : Public domain */
#include "CpuArch.h"
#ifdef MY_CPU_X86_OR_AMD64
#if _MSC_VER >= 1500
#define USE_INTEL_AES
#endif
#endif
#ifdef USE_INTEL_AES
#include <wmmintrin.h>
void MY_FAST_CALL AesCbc_Encode_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i m = *p;
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p + 3;
m = _mm_xor_si128(m, *data);
m = _mm_xor_si128(m, p[2]);
do
{
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenc_si128(m, w[1]);
w += 2;
}
while (--numRounds2 != 0);
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenclast_si128(m, w[1]);
*data = m;
}
*p = m;
}
#define NUM_WAYS 3
#define AES_OP_W(op, n) { \
const __m128i t = w[n]; \
m0 = op(m0, t); \
m1 = op(m1, t); \
m2 = op(m2, t); \
}
#define AES_DEC(n) AES_OP_W(_mm_aesdec_si128, n)
#define AES_DEC_LAST(n) AES_OP_W(_mm_aesdeclast_si128, n)
#define AES_ENC(n) AES_OP_W(_mm_aesenc_si128, n)
#define AES_ENC_LAST(n) AES_OP_W(_mm_aesenclast_si128, n)
void MY_FAST_CALL AesCbc_Decode_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i iv = *p;
for (; numBlocks >= NUM_WAYS; numBlocks -= NUM_WAYS, data += NUM_WAYS)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1);
const __m128i *w = p + numRounds2 * 2;
__m128i m0, m1, m2;
{
const __m128i t = w[2];
m0 = _mm_xor_si128(t, data[0]);
m1 = _mm_xor_si128(t, data[1]);
m2 = _mm_xor_si128(t, data[2]);
}
numRounds2--;
do
{
AES_DEC(1)
AES_DEC(0)
w -= 2;
}
while (--numRounds2 != 0);
AES_DEC(1)
AES_DEC_LAST(0)
{
__m128i t;
t = _mm_xor_si128(m0, iv); iv = data[0]; data[0] = t;
t = _mm_xor_si128(m1, iv); iv = data[1]; data[1] = t;
t = _mm_xor_si128(m2, iv); iv = data[2]; data[2] = t;
}
}
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1);
const __m128i *w = p + numRounds2 * 2;
__m128i m = _mm_xor_si128(w[2], *data);
numRounds2--;
do
{
m = _mm_aesdec_si128(m, w[1]);
m = _mm_aesdec_si128(m, w[0]);
w -= 2;
}
while (--numRounds2 != 0);
m = _mm_aesdec_si128(m, w[1]);
m = _mm_aesdeclast_si128(m, w[0]);
m = _mm_xor_si128(m, iv);
iv = *data;
*data = m;
}
*p = iv;
}
void MY_FAST_CALL AesCtr_Code_Intel(__m128i *p, __m128i *data, size_t numBlocks)
{
__m128i ctr = *p;
__m128i one;
one.m128i_u64[0] = 1;
one.m128i_u64[1] = 0;
for (; numBlocks >= NUM_WAYS; numBlocks -= NUM_WAYS, data += NUM_WAYS)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p;
__m128i m0, m1, m2;
{
const __m128i t = w[2];
ctr = _mm_add_epi64(ctr, one); m0 = _mm_xor_si128(ctr, t);
ctr = _mm_add_epi64(ctr, one); m1 = _mm_xor_si128(ctr, t);
ctr = _mm_add_epi64(ctr, one); m2 = _mm_xor_si128(ctr, t);
}
w += 3;
do
{
AES_ENC(0)
AES_ENC(1)
w += 2;
}
while (--numRounds2 != 0);
AES_ENC(0)
AES_ENC_LAST(1)
data[0] = _mm_xor_si128(data[0], m0);
data[1] = _mm_xor_si128(data[1], m1);
data[2] = _mm_xor_si128(data[2], m2);
}
for (; numBlocks != 0; numBlocks--, data++)
{
UInt32 numRounds2 = *(const UInt32 *)(p + 1) - 1;
const __m128i *w = p;
__m128i m;
ctr = _mm_add_epi64(ctr, one);
m = _mm_xor_si128(ctr, p[2]);
w += 3;
do
{
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenc_si128(m, w[1]);
w += 2;
}
while (--numRounds2 != 0);
m = _mm_aesenc_si128(m, w[0]);
m = _mm_aesenclast_si128(m, w[1]);
*data = _mm_xor_si128(*data, m);
}
*p = ctr;
}
#else
void MY_FAST_CALL AesCbc_Encode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Decode(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCtr_Code(UInt32 *ivAes, Byte *data, size_t numBlocks);
void MY_FAST_CALL AesCbc_Encode_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCbc_Encode(p, data, numBlocks);
}
void MY_FAST_CALL AesCbc_Decode_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCbc_Decode(p, data, numBlocks);
}
void MY_FAST_CALL AesCtr_Code_Intel(UInt32 *p, Byte *data, size_t numBlocks)
{
AesCtr_Code(p, data, numBlocks);
}
#endif

View File

@@ -1,13 +1,15 @@
/* Alloc.h -- Memory allocation functions
2008-03-13
Igor Pavlov
Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __COMMON_ALLOC_H
#define __COMMON_ALLOC_H
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
void *MyAlloc(size_t size);
void MyFree(void *address);
@@ -29,4 +31,8 @@ void BigFree(void *address);
#endif
#ifdef __cplusplus
}
#endif
#endif

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@@ -1,13 +0,0 @@
/* 7zDecode.h -- Decoding from 7z folder
2008-11-23 : Igor Pavlov : Public domain */
#ifndef __7Z_DECODE_H
#define __7Z_DECODE_H
#include "7zItem.h"
SRes SzDecode(const UInt64 *packSizes, const CSzFolder *folder,
ILookInStream *stream, UInt64 startPos,
Byte *outBuffer, size_t outSize, ISzAlloc *allocMain);
#endif

View File

@@ -1,93 +0,0 @@
/* 7zExtract.c -- Extracting from 7z archive
2008-11-23 : Igor Pavlov : Public domain */
#include "../../7zCrc.h"
#include "7zDecode.h"
#include "7zExtract.h"
SRes SzAr_Extract(
const CSzArEx *p,
ILookInStream *inStream,
UInt32 fileIndex,
UInt32 *blockIndex,
Byte **outBuffer,
size_t *outBufferSize,
size_t *offset,
size_t *outSizeProcessed,
ISzAlloc *allocMain,
ISzAlloc *allocTemp)
{
UInt32 folderIndex = p->FileIndexToFolderIndexMap[fileIndex];
SRes res = SZ_OK;
*offset = 0;
*outSizeProcessed = 0;
if (folderIndex == (UInt32)-1)
{
IAlloc_Free(allocMain, *outBuffer);
*blockIndex = folderIndex;
*outBuffer = 0;
*outBufferSize = 0;
return SZ_OK;
}
if (*outBuffer == 0 || *blockIndex != folderIndex)
{
CSzFolder *folder = p->db.Folders + folderIndex;
UInt64 unpackSizeSpec = SzFolder_GetUnpackSize(folder);
size_t unpackSize = (size_t)unpackSizeSpec;
UInt64 startOffset = SzArEx_GetFolderStreamPos(p, folderIndex, 0);
if (unpackSize != unpackSizeSpec)
return SZ_ERROR_MEM;
*blockIndex = folderIndex;
IAlloc_Free(allocMain, *outBuffer);
*outBuffer = 0;
RINOK(LookInStream_SeekTo(inStream, startOffset));
if (res == SZ_OK)
{
*outBufferSize = unpackSize;
if (unpackSize != 0)
{
*outBuffer = (Byte *)IAlloc_Alloc(allocMain, unpackSize);
if (*outBuffer == 0)
res = SZ_ERROR_MEM;
}
if (res == SZ_OK)
{
res = SzDecode(p->db.PackSizes +
p->FolderStartPackStreamIndex[folderIndex], folder,
inStream, startOffset,
*outBuffer, unpackSize, allocTemp);
if (res == SZ_OK)
{
if (folder->UnpackCRCDefined)
{
if (CrcCalc(*outBuffer, unpackSize) != folder->UnpackCRC)
res = SZ_ERROR_CRC;
}
}
}
}
}
if (res == SZ_OK)
{
UInt32 i;
CSzFileItem *fileItem = p->db.Files + fileIndex;
*offset = 0;
for (i = p->FolderStartFileIndex[folderIndex]; i < fileIndex; i++)
*offset += (UInt32)p->db.Files[i].Size;
*outSizeProcessed = (size_t)fileItem->Size;
if (*offset + *outSizeProcessed > *outBufferSize)
return SZ_ERROR_FAIL;
{
if (fileItem->FileCRCDefined)
{
if (CrcCalc(*outBuffer + *offset, *outSizeProcessed) != fileItem->FileCRC)
res = SZ_ERROR_CRC;
}
}
}
return res;
}

View File

@@ -1,41 +0,0 @@
/* 7zExtract.h -- Extracting from 7z archive
2008-11-23 : Igor Pavlov : Public domain */
#ifndef __7Z_EXTRACT_H
#define __7Z_EXTRACT_H
#include "7zIn.h"
/*
SzExtract extracts file from archive
*outBuffer must be 0 before first call for each new archive.
Extracting cache:
If you need to decompress more than one file, you can send
these values from previous call:
*blockIndex,
*outBuffer,
*outBufferSize
You can consider "*outBuffer" as cache of solid block. If your archive is solid,
it will increase decompression speed.
If you use external function, you can declare these 3 cache variables
(blockIndex, outBuffer, outBufferSize) as static in that external function.
Free *outBuffer and set *outBuffer to 0, if you want to flush cache.
*/
SRes SzAr_Extract(
const CSzArEx *db,
ILookInStream *inStream,
UInt32 fileIndex, /* index of file */
UInt32 *blockIndex, /* index of solid block */
Byte **outBuffer, /* pointer to pointer to output buffer (allocated with allocMain) */
size_t *outBufferSize, /* buffer size for output buffer */
size_t *offset, /* offset of stream for required file in *outBuffer */
size_t *outSizeProcessed, /* size of file in *outBuffer */
ISzAlloc *allocMain,
ISzAlloc *allocTemp);
#endif

View File

@@ -1,6 +0,0 @@
/* 7zHeader.c -- 7z Headers
2008-10-04 : Igor Pavlov : Public domain */
#include "7zHeader.h"
Byte k7zSignature[k7zSignatureSize] = {'7', 'z', 0xBC, 0xAF, 0x27, 0x1C};

View File

@@ -1,57 +0,0 @@
/* 7zHeader.h -- 7z Headers
2008-10-04 : Igor Pavlov : Public domain */
#ifndef __7Z_HEADER_H
#define __7Z_HEADER_H
#include "../../Types.h"
#define k7zSignatureSize 6
extern Byte k7zSignature[k7zSignatureSize];
#define k7zMajorVersion 0
#define k7zStartHeaderSize 0x20
enum EIdEnum
{
k7zIdEnd,
k7zIdHeader,
k7zIdArchiveProperties,
k7zIdAdditionalStreamsInfo,
k7zIdMainStreamsInfo,
k7zIdFilesInfo,
k7zIdPackInfo,
k7zIdUnpackInfo,
k7zIdSubStreamsInfo,
k7zIdSize,
k7zIdCRC,
k7zIdFolder,
k7zIdCodersUnpackSize,
k7zIdNumUnpackStream,
k7zIdEmptyStream,
k7zIdEmptyFile,
k7zIdAnti,
k7zIdName,
k7zIdCTime,
k7zIdATime,
k7zIdMTime,
k7zIdWinAttributes,
k7zIdComment,
k7zIdEncodedHeader,
k7zIdStartPos,
k7zIdDummy
};
#endif

View File

@@ -1,41 +0,0 @@
/* 7zIn.h -- 7z Input functions
2008-11-23 : Igor Pavlov : Public domain */
#ifndef __7Z_IN_H
#define __7Z_IN_H
#include "7zHeader.h"
#include "7zItem.h"
typedef struct
{
CSzAr db;
UInt64 startPosAfterHeader;
UInt64 dataPos;
UInt32 *FolderStartPackStreamIndex;
UInt64 *PackStreamStartPositions;
UInt32 *FolderStartFileIndex;
UInt32 *FileIndexToFolderIndexMap;
} CSzArEx;
void SzArEx_Init(CSzArEx *p);
void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc);
UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder);
int SzArEx_GetFolderFullPackSize(const CSzArEx *p, UInt32 folderIndex, UInt64 *resSize);
/*
Errors:
SZ_ERROR_NO_ARCHIVE
SZ_ERROR_ARCHIVE
SZ_ERROR_UNSUPPORTED
SZ_ERROR_MEM
SZ_ERROR_CRC
SZ_ERROR_INPUT_EOF
SZ_ERROR_FAIL
*/
SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, ISzAlloc *allocMain, ISzAlloc *allocTemp);
#endif

View File

@@ -1,127 +0,0 @@
/* 7zItem.c -- 7z Items
2008-10-04 : Igor Pavlov : Public domain */
#include "7zItem.h"
void SzCoderInfo_Init(CSzCoderInfo *p)
{
Buf_Init(&p->Props);
}
void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc)
{
Buf_Free(&p->Props, alloc);
SzCoderInfo_Init(p);
}
void SzFolder_Init(CSzFolder *p)
{
p->Coders = 0;
p->BindPairs = 0;
p->PackStreams = 0;
p->UnpackSizes = 0;
p->NumCoders = 0;
p->NumBindPairs = 0;
p->NumPackStreams = 0;
p->UnpackCRCDefined = 0;
p->UnpackCRC = 0;
p->NumUnpackStreams = 0;
}
void SzFolder_Free(CSzFolder *p, ISzAlloc *alloc)
{
UInt32 i;
if (p->Coders)
for (i = 0; i < p->NumCoders; i++)
SzCoderInfo_Free(&p->Coders[i], alloc);
IAlloc_Free(alloc, p->Coders);
IAlloc_Free(alloc, p->BindPairs);
IAlloc_Free(alloc, p->PackStreams);
IAlloc_Free(alloc, p->UnpackSizes);
SzFolder_Init(p);
}
UInt32 SzFolder_GetNumOutStreams(CSzFolder *p)
{
UInt32 result = 0;
UInt32 i;
for (i = 0; i < p->NumCoders; i++)
result += p->Coders[i].NumOutStreams;
return result;
}
int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex)
{
UInt32 i;
for (i = 0; i < p->NumBindPairs; i++)
if (p->BindPairs[i].InIndex == inStreamIndex)
return i;
return -1;
}
int SzFolder_FindBindPairForOutStream(CSzFolder *p, UInt32 outStreamIndex)
{
UInt32 i;
for (i = 0; i < p->NumBindPairs; i++)
if (p->BindPairs[i].OutIndex == outStreamIndex)
return i;
return -1;
}
UInt64 SzFolder_GetUnpackSize(CSzFolder *p)
{
int i = (int)SzFolder_GetNumOutStreams(p);
if (i == 0)
return 0;
for (i--; i >= 0; i--)
if (SzFolder_FindBindPairForOutStream(p, i) < 0)
return p->UnpackSizes[i];
/* throw 1; */
return 0;
}
void SzFile_Init(CSzFileItem *p)
{
p->HasStream = 1;
p->IsDir = 0;
p->IsAnti = 0;
p->FileCRCDefined = 0;
p->MTimeDefined = 0;
p->Name = 0;
}
static void SzFile_Free(CSzFileItem *p, ISzAlloc *alloc)
{
IAlloc_Free(alloc, p->Name);
SzFile_Init(p);
}
void SzAr_Init(CSzAr *p)
{
p->PackSizes = 0;
p->PackCRCsDefined = 0;
p->PackCRCs = 0;
p->Folders = 0;
p->Files = 0;
p->NumPackStreams = 0;
p->NumFolders = 0;
p->NumFiles = 0;
}
void SzAr_Free(CSzAr *p, ISzAlloc *alloc)
{
UInt32 i;
if (p->Folders)
for (i = 0; i < p->NumFolders; i++)
SzFolder_Free(&p->Folders[i], alloc);
if (p->Files)
for (i = 0; i < p->NumFiles; i++)
SzFile_Free(&p->Files[i], alloc);
IAlloc_Free(alloc, p->PackSizes);
IAlloc_Free(alloc, p->PackCRCsDefined);
IAlloc_Free(alloc, p->PackCRCs);
IAlloc_Free(alloc, p->Folders);
IAlloc_Free(alloc, p->Files);
SzAr_Init(p);
}

View File

@@ -1,84 +0,0 @@
/* 7zItem.h -- 7z Items
2008-10-04 : Igor Pavlov : Public domain */
#ifndef __7Z_ITEM_H
#define __7Z_ITEM_H
#include "../../7zBuf.h"
typedef struct
{
UInt32 NumInStreams;
UInt32 NumOutStreams;
UInt64 MethodID;
CBuf Props;
} CSzCoderInfo;
void SzCoderInfo_Init(CSzCoderInfo *p);
void SzCoderInfo_Free(CSzCoderInfo *p, ISzAlloc *alloc);
typedef struct
{
UInt32 InIndex;
UInt32 OutIndex;
} CBindPair;
typedef struct
{
CSzCoderInfo *Coders;
CBindPair *BindPairs;
UInt32 *PackStreams;
UInt64 *UnpackSizes;
UInt32 NumCoders;
UInt32 NumBindPairs;
UInt32 NumPackStreams;
int UnpackCRCDefined;
UInt32 UnpackCRC;
UInt32 NumUnpackStreams;
} CSzFolder;
void SzFolder_Init(CSzFolder *p);
UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
int SzFolder_FindBindPairForInStream(CSzFolder *p, UInt32 inStreamIndex);
UInt32 SzFolder_GetNumOutStreams(CSzFolder *p);
UInt64 SzFolder_GetUnpackSize(CSzFolder *p);
typedef struct
{
UInt32 Low;
UInt32 High;
} CNtfsFileTime;
typedef struct
{
CNtfsFileTime MTime;
UInt64 Size;
char *Name;
UInt32 FileCRC;
Byte HasStream;
Byte IsDir;
Byte IsAnti;
Byte FileCRCDefined;
Byte MTimeDefined;
} CSzFileItem;
void SzFile_Init(CSzFileItem *p);
typedef struct
{
UInt64 *PackSizes;
Byte *PackCRCsDefined;
UInt32 *PackCRCs;
CSzFolder *Folders;
CSzFileItem *Files;
UInt32 NumPackStreams;
UInt32 NumFolders;
UInt32 NumFiles;
} CSzAr;
void SzAr_Init(CSzAr *p);
void SzAr_Free(CSzAr *p, ISzAlloc *alloc);
#endif

View File

@@ -1,262 +0,0 @@
/* 7zMain.c - Test application for 7z Decoder
2008-11-23 : Igor Pavlov : Public domain */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../../7zCrc.h"
#include "../../7zFile.h"
#include "../../7zVersion.h"
#include "7zAlloc.h"
#include "7zExtract.h"
#include "7zIn.h"
static void ConvertNumberToString(UInt64 value, char *s)
{
char temp[32];
int pos = 0;
do
{
temp[pos++] = (char)('0' + (int)(value % 10));
value /= 10;
}
while (value != 0);
do
*s++ = temp[--pos];
while (pos > 0);
*s = '\0';
}
#define PERIOD_4 (4 * 365 + 1)
#define PERIOD_100 (PERIOD_4 * 25 - 1)
#define PERIOD_400 (PERIOD_100 * 4 + 1)
static void ConvertFileTimeToString(CNtfsFileTime *ft, char *s)
{
unsigned year, mon, day, hour, min, sec;
UInt64 v64 = ft->Low | ((UInt64)ft->High << 32);
Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
unsigned temp;
UInt32 v;
v64 /= 10000000;
sec = (unsigned)(v64 % 60);
v64 /= 60;
min = (unsigned)(v64 % 60);
v64 /= 60;
hour = (unsigned)(v64 % 24);
v64 /= 24;
v = (UInt32)v64;
year = (unsigned)(1601 + v / PERIOD_400 * 400);
v %= PERIOD_400;
temp = (unsigned)(v / PERIOD_100);
if (temp == 4)
temp = 3;
year += temp * 100;
v -= temp * PERIOD_100;
temp = v / PERIOD_4;
if (temp == 25)
temp = 24;
year += temp * 4;
v -= temp * PERIOD_4;
temp = v / 365;
if (temp == 4)
temp = 3;
year += temp;
v -= temp * 365;
if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
ms[1] = 29;
for (mon = 1; mon <= 12; mon++)
{
unsigned s = ms[mon - 1];
if (v < s)
break;
v -= s;
}
day = (unsigned)v + 1;
sprintf(s, "%04d-%02d-%02d %02d:%02d:%02d", year, mon, day, hour, min, sec);
}
void PrintError(char *sz)
{
printf("\nERROR: %s\n", sz);
}
int MY_CDECL main(int numargs, char *args[])
{
CFileInStream archiveStream;
CLookToRead lookStream;
CSzArEx db;
SRes res;
ISzAlloc allocImp;
ISzAlloc allocTempImp;
printf("\n7z ANSI-C Decoder " MY_VERSION_COPYRIGHT_DATE "\n");
if (numargs == 1)
{
printf(
"\nUsage: 7zDec <command> <archive_name>\n\n"
"<Commands>\n"
" e: Extract files from archive\n"
" l: List contents of archive\n"
" t: Test integrity of archive\n");
return 0;
}
if (numargs < 3)
{
PrintError("incorrect command");
return 1;
}
if (InFile_Open(&archiveStream.file, args[2]))
{
PrintError("can not open input file");
return 1;
}
FileInStream_CreateVTable(&archiveStream);
LookToRead_CreateVTable(&lookStream, False);
lookStream.realStream = &archiveStream.s;
LookToRead_Init(&lookStream);
allocImp.Alloc = SzAlloc;
allocImp.Free = SzFree;
allocTempImp.Alloc = SzAllocTemp;
allocTempImp.Free = SzFreeTemp;
CrcGenerateTable();
SzArEx_Init(&db);
res = SzArEx_Open(&db, &lookStream.s, &allocImp, &allocTempImp);
if (res == SZ_OK)
{
char *command = args[1];
int listCommand = 0, testCommand = 0, extractCommand = 0;
if (strcmp(command, "l") == 0) listCommand = 1;
else if (strcmp(command, "t") == 0) testCommand = 1;
else if (strcmp(command, "e") == 0) extractCommand = 1;
if (listCommand)
{
UInt32 i;
for (i = 0; i < db.db.NumFiles; i++)
{
CSzFileItem *f = db.db.Files + i;
char s[32], t[32];
ConvertNumberToString(f->Size, s);
if (f->MTimeDefined)
ConvertFileTimeToString(&f->MTime, t);
else
strcpy(t, " ");
printf("%s %10s %s\n", t, s, f->Name);
}
}
else if (testCommand || extractCommand)
{
UInt32 i;
/*
if you need cache, use these 3 variables.
if you use external function, you can make these variable as static.
*/
UInt32 blockIndex = 0xFFFFFFFF; /* it can have any value before first call (if outBuffer = 0) */
Byte *outBuffer = 0; /* it must be 0 before first call for each new archive. */
size_t outBufferSize = 0; /* it can have any value before first call (if outBuffer = 0) */
printf("\n");
for (i = 0; i < db.db.NumFiles; i++)
{
size_t offset;
size_t outSizeProcessed;
CSzFileItem *f = db.db.Files + i;
if (f->IsDir)
printf("Directory ");
else
printf(testCommand ?
"Testing ":
"Extracting");
printf(" %s", f->Name);
if (f->IsDir)
{
printf("\n");
continue;
}
res = SzAr_Extract(&db, &lookStream.s, i,
&blockIndex, &outBuffer, &outBufferSize,
&offset, &outSizeProcessed,
&allocImp, &allocTempImp);
if (res != SZ_OK)
break;
if (!testCommand)
{
CSzFile outFile;
size_t processedSize;
char *fileName = f->Name;
size_t nameLen = strlen(f->Name);
for (; nameLen > 0; nameLen--)
if (f->Name[nameLen - 1] == '/')
{
fileName = f->Name + nameLen;
break;
}
if (OutFile_Open(&outFile, fileName))
{
PrintError("can not open output file");
res = SZ_ERROR_FAIL;
break;
}
processedSize = outSizeProcessed;
if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 ||
processedSize != outSizeProcessed)
{
PrintError("can not write output file");
res = SZ_ERROR_FAIL;
break;
}
if (File_Close(&outFile))
{
PrintError("can not close output file");
res = SZ_ERROR_FAIL;
break;
}
}
printf("\n");
}
IAlloc_Free(&allocImp, outBuffer);
}
else
{
PrintError("incorrect command");
res = SZ_ERROR_FAIL;
}
}
SzArEx_Free(&db, &allocImp);
File_Close(&archiveStream.file);
if (res == SZ_OK)
{
printf("\nEverything is Ok\n");
return 0;
}
if (res == SZ_ERROR_UNSUPPORTED)
PrintError("decoder doesn't support this archive");
else if (res == SZ_ERROR_MEM)
PrintError("can not allocate memory");
else if (res == SZ_ERROR_CRC)
PrintError("CRC error");
else
printf("\nERROR #%d\n", res);
return 1;
}

View File

@@ -1,11 +1,15 @@
/* Bcj2.h -- Converter for x86 code (BCJ2)
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __BCJ2_H
#define __BCJ2_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
Conditions:
outSize <= FullOutputSize,
@@ -27,4 +31,8 @@ int Bcj2_Decode(
const Byte *buf3, SizeT size3,
Byte *outBuf, SizeT outSize);
#ifdef __cplusplus
}
#endif
#endif

10
C/Bra.h
View File

@@ -1,11 +1,15 @@
/* Bra.h -- Branch converters for executables
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __BRA_H
#define __BRA_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
These functions convert relative addresses to absolute addresses
in CALL instructions to increase the compression ratio.
@@ -57,4 +61,8 @@ SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,13 +1,15 @@
/* BwtSort.h -- BWT block sorting
2008-03-26
Igor Pavlov
Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __BWTSORT_H
#define __BWTSORT_H
#ifndef __BWT_SORT_H
#define __BWT_SORT_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* use BLOCK_SORT_EXTERNAL_FLAGS if blockSize can be > 1M */
/* #define BLOCK_SORT_EXTERNAL_FLAGS */
@@ -21,4 +23,8 @@ Public domain */
UInt32 BlockSort(UInt32 *indices, const Byte *data, UInt32 blockSize);
#ifdef __cplusplus
}
#endif
#endif

168
C/CpuArch.c Executable file
View File

@@ -0,0 +1,168 @@
/* CpuArch.c -- CPU specific code
2009-12-12: Igor Pavlov : Public domain */
#include "CpuArch.h"
#ifdef MY_CPU_X86_OR_AMD64
#if (defined(_MSC_VER) && !defined(MY_CPU_AMD64)) || defined(__GNUC__)
#define USE_ASM
#endif
#if defined(USE_ASM) && !defined(MY_CPU_AMD64)
static UInt32 CheckFlag(UInt32 flag)
{
#ifdef _MSC_VER
__asm pushfd;
__asm pop EAX;
__asm mov EDX, EAX;
__asm xor EAX, flag;
__asm push EAX;
__asm popfd;
__asm pushfd;
__asm pop EAX;
__asm xor EAX, EDX;
__asm push EDX;
__asm popfd;
__asm and flag, EAX;
#else
__asm__ __volatile__ (
"pushf\n\t"
"pop %%EAX\n\t"
"movl %%EAX,%%EDX\n\t"
"xorl %0,%%EAX\n\t"
"push %%EAX\n\t"
"popf\n\t"
"pushf\n\t"
"pop %%EAX\n\t"
"xorl %%EDX,%%EAX\n\t"
"push %%EDX\n\t"
"popf\n\t"
"andl %%EAX, %0\n\t":
"=c" (flag) : "c" (flag));
#endif
return flag;
}
#define CHECK_CPUID_IS_SUPPORTED if (CheckFlag(1 << 18) == 0 || CheckFlag(1 << 21) == 0) return False;
#else
#define CHECK_CPUID_IS_SUPPORTED
#endif
static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
{
#ifdef USE_ASM
#ifdef _MSC_VER
UInt32 a2, b2, c2, d2;
__asm xor EBX, EBX;
__asm xor ECX, ECX;
__asm xor EDX, EDX;
__asm mov EAX, function;
__asm cpuid;
__asm mov a2, EAX;
__asm mov b2, EBX;
__asm mov c2, ECX;
__asm mov d2, EDX;
*a = a2;
*b = b2;
*c = c2;
*d = d2;
#else
__asm__ __volatile__ (
"cpuid"
: "=a" (*a) ,
"=b" (*b) ,
"=c" (*c) ,
"=d" (*d)
: "0" (function)) ;
#endif
#else
int CPUInfo[4];
__cpuid(CPUInfo, function);
*a = CPUInfo[0];
*b = CPUInfo[1];
*c = CPUInfo[2];
*d = CPUInfo[3];
#endif
}
Bool x86cpuid_CheckAndRead(Cx86cpuid *p)
{
CHECK_CPUID_IS_SUPPORTED
MyCPUID(0, &p->maxFunc, &p->vendor[0], &p->vendor[2], &p->vendor[1]);
MyCPUID(1, &p->ver, &p->b, &p->c, &p->d);
return True;
}
static UInt32 kVendors[][3] =
{
{ 0x756E6547, 0x49656E69, 0x6C65746E},
{ 0x68747541, 0x69746E65, 0x444D4163},
{ 0x746E6543, 0x48727561, 0x736C7561}
};
int x86cpuid_GetFirm(const Cx86cpuid *p)
{
unsigned i;
for (i = 0; i < sizeof(kVendors) / sizeof(kVendors[i]); i++)
{
const UInt32 *v = kVendors[i];
if (v[0] == p->vendor[0] &&
v[1] == p->vendor[1] &&
v[2] == p->vendor[2])
return (int)i;
}
return -1;
}
Bool CPU_Is_InOrder()
{
Cx86cpuid p;
int firm;
UInt32 family, model;
if (!x86cpuid_CheckAndRead(&p))
return True;
family = x86cpuid_GetFamily(&p);
model = x86cpuid_GetModel(&p);
firm = x86cpuid_GetFirm(&p);
switch (firm)
{
case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && model == 0x100C));
case CPU_FIRM_AMD: return (family < 5 || (family == 5 && (model < 6 || model == 0xA)));
case CPU_FIRM_VIA: return (family < 6 || (family == 6 && model < 0xF));
}
return True;
}
#if !defined(MY_CPU_AMD64) && defined(_WIN32)
static Bool CPU_Sys_Is_SSE_Supported()
{
OSVERSIONINFO vi;
vi.dwOSVersionInfoSize = sizeof(vi);
if (!GetVersionEx(&vi))
return False;
return (vi.dwMajorVersion >= 5);
}
#define CHECK_SYS_SSE_SUPPORT if (!CPU_Sys_Is_SSE_Supported()) return False;
#else
#define CHECK_SYS_SSE_SUPPORT
#endif
Bool CPU_Is_Aes_Supported()
{
Cx86cpuid p;
CHECK_SYS_SSE_SUPPORT
if (!x86cpuid_CheckAndRead(&p))
return False;
return (p.c >> 25) & 1;
}
#endif

View File

@@ -1,28 +1,59 @@
/* CpuArch.h
2008-08-05
Igor Pavlov
Public domain */
/* CpuArch.h -- CPU specific code
2010-03-11: Igor Pavlov : Public domain */
#ifndef __CPUARCH_H
#define __CPUARCH_H
#ifndef __CPU_ARCH_H
#define __CPU_ARCH_H
#include "Types.h"
EXTERN_C_BEGIN
/*
LITTLE_ENDIAN_UNALIGN means:
1) CPU is LITTLE_ENDIAN
2) it's allowed to make unaligned memory accesses
if LITTLE_ENDIAN_UNALIGN is not defined, it means that we don't know
about these properties of platform.
MY_CPU_LE means that CPU is LITTLE ENDIAN.
If MY_CPU_LE is not defined, we don't know about that property of platform (it can be LITTLE ENDIAN).
MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform.
*/
#if defined(_M_IX86) || defined(_M_X64) || defined(_M_AMD64) || defined(__i386__) || defined(__x86_64__)
#define LITTLE_ENDIAN_UNALIGN
#if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__)
#define MY_CPU_AMD64
#endif
#ifdef LITTLE_ENDIAN_UNALIGN
#if defined(MY_CPU_AMD64) || defined(_M_IA64)
#define MY_CPU_64BIT
#endif
#if defined(_M_IX86) || defined(__i386__)
#define MY_CPU_X86
#endif
#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
#define MY_CPU_X86_OR_AMD64
#endif
#if defined(MY_CPU_X86) || defined(_M_ARM)
#define MY_CPU_32BIT
#endif
#if defined(_WIN32) && defined(_M_ARM)
#define MY_CPU_ARM_LE
#endif
#if defined(MY_CPU_X86_OR_AMD64)
#define MY_CPU_LE_UNALIGN
#endif
#if defined(MY_CPU_X86_OR_AMD64) || defined(MY_CPU_ARM_LE)
#define MY_CPU_LE
#endif
#ifdef MY_CPU_LE_UNALIGN
#define GetUi16(p) (*(const UInt16 *)(p))
#define GetUi32(p) (*(const UInt32 *)(p))
#define GetUi64(p) (*(const UInt64 *)(p))
#define SetUi16(p, d) *(UInt16 *)(p) = (d);
#define SetUi32(p, d) *(UInt32 *)(p) = (d);
#else
@@ -37,6 +68,10 @@ about these properties of platform.
#define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
#define SetUi16(p, d) { UInt32 _x_ = (d); \
((Byte *)(p))[0] = (Byte)_x_; \
((Byte *)(p))[1] = (Byte)(_x_ >> 8); }
#define SetUi32(p, d) { UInt32 _x_ = (d); \
((Byte *)(p))[0] = (Byte)_x_; \
((Byte *)(p))[1] = (Byte)(_x_ >> 8); \
@@ -45,7 +80,7 @@ about these properties of platform.
#endif
#if defined(LITTLE_ENDIAN_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300)
#if defined(MY_CPU_LE_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300)
#pragma intrinsic(_byteswap_ulong)
#pragma intrinsic(_byteswap_uint64)
@@ -66,4 +101,38 @@ about these properties of platform.
#define GetBe16(p) (((UInt16)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])
#ifdef MY_CPU_X86_OR_AMD64
typedef struct
{
UInt32 maxFunc;
UInt32 vendor[3];
UInt32 ver;
UInt32 b;
UInt32 c;
UInt32 d;
} Cx86cpuid;
enum
{
CPU_FIRM_INTEL,
CPU_FIRM_AMD,
CPU_FIRM_VIA
};
Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
int x86cpuid_GetFirm(const Cx86cpuid *p);
#define x86cpuid_GetFamily(p) (((p)->ver >> 8) & 0xFF00F)
#define x86cpuid_GetModel(p) (((p)->ver >> 4) & 0xF00F)
#define x86cpuid_GetStepping(p) ((p)->ver & 0xF)
Bool CPU_Is_InOrder();
Bool CPU_Is_Aes_Supported();
#endif
EXTERN_C_END
#endif

62
C/Delta.c Executable file
View File

@@ -0,0 +1,62 @@
/* Delta.c -- Delta converter
2009-05-26 : Igor Pavlov : Public domain */
#include "Delta.h"
void Delta_Init(Byte *state)
{
unsigned i;
for (i = 0; i < DELTA_STATE_SIZE; i++)
state[i] = 0;
}
static void MyMemCpy(Byte *dest, const Byte *src, unsigned size)
{
unsigned i;
for (i = 0; i < size; i++)
dest[i] = src[i];
}
void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size)
{
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
Byte b = data[i];
data[i] = (Byte)(b - buf[j]);
buf[j] = b;
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
}
void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size)
{
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
buf[j] = data[i] = (Byte)(buf[j] + data[i]);
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
}

23
C/Delta.h Executable file
View File

@@ -0,0 +1,23 @@
/* Delta.h -- Delta converter
2009-04-15 : Igor Pavlov : Public domain */
#ifndef __DELTA_H
#define __DELTA_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
#define DELTA_STATE_SIZE 256
void Delta_Init(Byte *state);
void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size);
void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,7 +1,5 @@
/* HuffEnc.c -- functions for Huffman encoding
2008-08-05
Igor Pavlov
Public domain */
2009-09-02 : Igor Pavlov : Public domain */
#include "HuffEnc.h"
#include "Sort.h"
@@ -67,11 +65,11 @@ void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 numSymb
if (num < 2)
{
int minCode = 0;
int maxCode = 1;
unsigned minCode = 0;
unsigned maxCode = 1;
if (num == 1)
{
maxCode = (int)(p[0] & MASK);
maxCode = (unsigned)p[0] & MASK;
if (maxCode == 0)
maxCode++;
}

View File

@@ -1,13 +1,15 @@
/* HuffEnc.h -- functions for Huffman encoding
2008-03-26
Igor Pavlov
Public domain */
/* HuffEnc.h -- Huffman encoding
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __HUFFENC_H
#define __HUFFENC_H
#ifndef __HUFF_ENC_H
#define __HUFF_ENC_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
Conditions:
num <= 1024 = 2 ^ NUM_BITS
@@ -18,4 +20,8 @@ Conditions:
void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 num, UInt32 maxLen);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,5 +1,5 @@
/* LzFind.c -- Match finder for LZ algorithms
2008-10-04 : Igor Pavlov : Public domain */
2009-04-22 : Igor Pavlov : Public domain */
#include <string.h>
@@ -58,6 +58,17 @@ static void MatchFinder_ReadBlock(CMatchFinder *p)
{
if (p->streamEndWasReached || p->result != SZ_OK)
return;
if (p->directInput)
{
UInt32 curSize = 0xFFFFFFFF - p->streamPos;
if (curSize > p->directInputRem)
curSize = (UInt32)p->directInputRem;
p->directInputRem -= curSize;
p->streamPos += curSize;
if (p->directInputRem == 0)
p->streamEndWasReached = 1;
return;
}
for (;;)
{
Byte *dest = p->buffer + (p->streamPos - p->pos);
@@ -88,6 +99,8 @@ void MatchFinder_MoveBlock(CMatchFinder *p)
int MatchFinder_NeedMove(CMatchFinder *p)
{
if (p->directInput)
return 0;
/* if (p->streamEndWasReached) return 0; */
return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
}
@@ -112,8 +125,6 @@ static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
p->cutValue = 32;
p->btMode = 1;
p->numHashBytes = 4;
/* p->skipModeBits = 0; */
p->directInput = 0;
p->bigHash = 0;
}
@@ -177,7 +188,7 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
/* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
if (LzInWindow_Create(p, sizeReserv, alloc))
{
UInt32 newCyclicBufferSize = (historySize /* >> p->skipModeBits */) + 1;
UInt32 newCyclicBufferSize = historySize + 1;
UInt32 hs;
p->matchMaxLen = matchMaxLen;
{
@@ -192,7 +203,6 @@ int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
hs |= (hs >> 4);
hs |= (hs >> 8);
hs >>= 1;
/* hs >>= p->skipModeBits; */
hs |= 0xFFFF; /* don't change it! It's required for Deflate */
if (hs > (1 << 24))
{

View File

@@ -1,11 +1,15 @@
/* LzFind.h -- Match finder for LZ algorithms
2008-10-04 : Igor Pavlov : Public domain */
2009-04-22 : Igor Pavlov : Public domain */
#ifndef __LZFIND_H
#define __LZFIND_H
#ifndef __LZ_FIND_H
#define __LZ_FIND_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef UInt32 CLzRef;
typedef struct _CMatchFinder
@@ -35,8 +39,8 @@ typedef struct _CMatchFinder
UInt32 numHashBytes;
int directInput;
size_t directInputRem;
int btMode;
/* int skipModeBits; */
int bigHash;
UInt32 historySize;
UInt32 fixedHashSize;
@@ -104,4 +108,8 @@ UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,5 +1,5 @@
/* LzFindMt.c -- multithreaded Match finder for LZ algorithms
2008-10-04 : Igor Pavlov : Public domain */
2009-09-20 : Igor Pavlov : Public domain */
#include "LzHash.h"
@@ -143,7 +143,7 @@ DEF_GetHeads2(2, (p[0] | ((UInt32)p[1] << 8)), hashMask = hashMask; crc = crc;
DEF_GetHeads(3, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8)) & hashMask)
DEF_GetHeads(4, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (crc[p[3]] << 5)) & hashMask)
DEF_GetHeads(4b, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ ((UInt32)p[3] << 16)) & hashMask)
DEF_GetHeads(5, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (crc[p[3]] << 5) ^ (crc[p[4]] << 3)) & hashMask)
/* DEF_GetHeads(5, (crc[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (crc[p[3]] << 5) ^ (crc[p[4]] << 3)) & hashMask) */
void HashThreadFunc(CMatchFinderMt *mt)
{
@@ -711,47 +711,47 @@ UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
return len;
}
#define SKIP_HEADER2 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_FOOTER } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while (--num != 0);
#define SKIP_HEADER2_MT do { GET_NEXT_BLOCK_IF_REQUIRED
#define SKIP_HEADER_MT(n) SKIP_HEADER2_MT if (p->btNumAvailBytes-- >= (n)) { const Byte *cur = p->pointerToCurPos; UInt32 *hash = p->hash;
#define SKIP_FOOTER_MT } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while (--num != 0);
void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num)
{
SKIP_HEADER2 { p->btNumAvailBytes--;
SKIP_FOOTER
SKIP_HEADER2_MT { p->btNumAvailBytes--;
SKIP_FOOTER_MT
}
void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num)
{
SKIP_HEADER(2)
SKIP_HEADER_MT(2)
UInt32 hash2Value;
MT_HASH2_CALC
hash[hash2Value] = p->lzPos;
SKIP_FOOTER
SKIP_FOOTER_MT
}
void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num)
{
SKIP_HEADER(3)
SKIP_HEADER_MT(3)
UInt32 hash2Value, hash3Value;
MT_HASH3_CALC
hash[kFix3HashSize + hash3Value] =
hash[ hash2Value] =
p->lzPos;
SKIP_FOOTER
SKIP_FOOTER_MT
}
/*
void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
{
SKIP_HEADER(4)
SKIP_HEADER_MT(4)
UInt32 hash2Value, hash3Value, hash4Value;
MT_HASH4_CALC
hash[kFix4HashSize + hash4Value] =
hash[kFix3HashSize + hash3Value] =
hash[ hash2Value] =
p->lzPos;
SKIP_FOOTER
SKIP_FOOTER_MT
}
*/

View File

@@ -1,11 +1,15 @@
/* LzFindMt.h -- multithreaded Match finder for LZ algorithms
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZFINDMT_H
#define __LZFINDMT_H
#ifndef __LZ_FIND_MT_H
#define __LZ_FIND_MT_H
#include "Threads.h"
#include "LzFind.h"
#include "Threads.h"
#ifdef __cplusplus
extern "C" {
#endif
#define kMtHashBlockSize (1 << 13)
#define kMtHashNumBlocks (1 << 3)
@@ -94,4 +98,8 @@ SRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddB
void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable);
void MatchFinderMt_ReleaseStream(CMatchFinderMt *p);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,8 +1,8 @@
/* LzHash.h -- HASH functions for LZ algorithms
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZHASH_H
#define __LZHASH_H
#ifndef __LZ_HASH_H
#define __LZ_HASH_H
#define kHash2Size (1 << 10)
#define kHash3Size (1 << 16)

356
C/Lzma2Dec.c Executable file
View File

@@ -0,0 +1,356 @@
/* Lzma2Dec.c -- LZMA2 Decoder
2009-05-03 : Igor Pavlov : Public domain */
/* #define SHOW_DEBUG_INFO */
#ifdef SHOW_DEBUG_INFO
#include <stdio.h>
#endif
#include <string.h>
#include "Lzma2Dec.h"
/*
00000000 - EOS
00000001 U U - Uncompressed Reset Dic
00000010 U U - Uncompressed No Reset
100uuuuu U U P P - LZMA no reset
101uuuuu U U P P - LZMA reset state
110uuuuu U U P P S - LZMA reset state + new prop
111uuuuu U U P P S - LZMA reset state + new prop + reset dic
u, U - Unpack Size
P - Pack Size
S - Props
*/
#define LZMA2_CONTROL_LZMA (1 << 7)
#define LZMA2_CONTROL_COPY_NO_RESET 2
#define LZMA2_CONTROL_COPY_RESET_DIC 1
#define LZMA2_CONTROL_EOF 0
#define LZMA2_IS_UNCOMPRESSED_STATE(p) (((p)->control & LZMA2_CONTROL_LZMA) == 0)
#define LZMA2_GET_LZMA_MODE(p) (((p)->control >> 5) & 3)
#define LZMA2_IS_THERE_PROP(mode) ((mode) >= 2)
#define LZMA2_LCLP_MAX 4
#define LZMA2_DIC_SIZE_FROM_PROP(p) (((UInt32)2 | ((p) & 1)) << ((p) / 2 + 11))
#ifdef SHOW_DEBUG_INFO
#define PRF(x) x
#else
#define PRF(x)
#endif
typedef enum
{
LZMA2_STATE_CONTROL,
LZMA2_STATE_UNPACK0,
LZMA2_STATE_UNPACK1,
LZMA2_STATE_PACK0,
LZMA2_STATE_PACK1,
LZMA2_STATE_PROP,
LZMA2_STATE_DATA,
LZMA2_STATE_DATA_CONT,
LZMA2_STATE_FINISHED,
LZMA2_STATE_ERROR
} ELzma2State;
static SRes Lzma2Dec_GetOldProps(Byte prop, Byte *props)
{
UInt32 dicSize;
if (prop > 40)
return SZ_ERROR_UNSUPPORTED;
dicSize = (prop == 40) ? 0xFFFFFFFF : LZMA2_DIC_SIZE_FROM_PROP(prop);
props[0] = (Byte)LZMA2_LCLP_MAX;
props[1] = (Byte)(dicSize);
props[2] = (Byte)(dicSize >> 8);
props[3] = (Byte)(dicSize >> 16);
props[4] = (Byte)(dicSize >> 24);
return SZ_OK;
}
SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc)
{
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_AllocateProbs(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
}
SRes Lzma2Dec_Allocate(CLzma2Dec *p, Byte prop, ISzAlloc *alloc)
{
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_Allocate(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
}
void Lzma2Dec_Init(CLzma2Dec *p)
{
p->state = LZMA2_STATE_CONTROL;
p->needInitDic = True;
p->needInitState = True;
p->needInitProp = True;
LzmaDec_Init(&p->decoder);
}
static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b)
{
switch(p->state)
{
case LZMA2_STATE_CONTROL:
p->control = b;
PRF(printf("\n %4X ", p->decoder.dicPos));
PRF(printf(" %2X", b));
if (p->control == 0)
return LZMA2_STATE_FINISHED;
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if ((p->control & 0x7F) > 2)
return LZMA2_STATE_ERROR;
p->unpackSize = 0;
}
else
p->unpackSize = (UInt32)(p->control & 0x1F) << 16;
return LZMA2_STATE_UNPACK0;
case LZMA2_STATE_UNPACK0:
p->unpackSize |= (UInt32)b << 8;
return LZMA2_STATE_UNPACK1;
case LZMA2_STATE_UNPACK1:
p->unpackSize |= (UInt32)b;
p->unpackSize++;
PRF(printf(" %8d", p->unpackSize));
return (LZMA2_IS_UNCOMPRESSED_STATE(p)) ? LZMA2_STATE_DATA : LZMA2_STATE_PACK0;
case LZMA2_STATE_PACK0:
p->packSize = (UInt32)b << 8;
return LZMA2_STATE_PACK1;
case LZMA2_STATE_PACK1:
p->packSize |= (UInt32)b;
p->packSize++;
PRF(printf(" %8d", p->packSize));
return LZMA2_IS_THERE_PROP(LZMA2_GET_LZMA_MODE(p)) ? LZMA2_STATE_PROP:
(p->needInitProp ? LZMA2_STATE_ERROR : LZMA2_STATE_DATA);
case LZMA2_STATE_PROP:
{
int lc, lp;
if (b >= (9 * 5 * 5))
return LZMA2_STATE_ERROR;
lc = b % 9;
b /= 9;
p->decoder.prop.pb = b / 5;
lp = b % 5;
if (lc + lp > LZMA2_LCLP_MAX)
return LZMA2_STATE_ERROR;
p->decoder.prop.lc = lc;
p->decoder.prop.lp = lp;
p->needInitProp = False;
return LZMA2_STATE_DATA;
}
}
return LZMA2_STATE_ERROR;
}
static void LzmaDec_UpdateWithUncompressed(CLzmaDec *p, const Byte *src, SizeT size)
{
memcpy(p->dic + p->dicPos, src, size);
p->dicPos += size;
if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= size)
p->checkDicSize = p->prop.dicSize;
p->processedPos += (UInt32)size;
}
void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState);
SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
{
SizeT inSize = *srcLen;
*srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
while (p->state != LZMA2_STATE_FINISHED)
{
SizeT dicPos = p->decoder.dicPos;
if (p->state == LZMA2_STATE_ERROR)
return SZ_ERROR_DATA;
if (dicPos == dicLimit && finishMode == LZMA_FINISH_ANY)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_OK;
}
if (p->state != LZMA2_STATE_DATA && p->state != LZMA2_STATE_DATA_CONT)
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
(*srcLen)++;
p->state = Lzma2Dec_UpdateState(p, *src++);
continue;
}
{
SizeT destSizeCur = dicLimit - dicPos;
SizeT srcSizeCur = inSize - *srcLen;
ELzmaFinishMode curFinishMode = LZMA_FINISH_ANY;
if (p->unpackSize <= destSizeCur)
{
destSizeCur = (SizeT)p->unpackSize;
curFinishMode = LZMA_FINISH_END;
}
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (p->state == LZMA2_STATE_DATA)
{
Bool initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC);
if (initDic)
p->needInitProp = p->needInitState = True;
else if (p->needInitDic)
return SZ_ERROR_DATA;
p->needInitDic = False;
LzmaDec_InitDicAndState(&p->decoder, initDic, False);
}
if (srcSizeCur > destSizeCur)
srcSizeCur = destSizeCur;
if (srcSizeCur == 0)
return SZ_ERROR_DATA;
LzmaDec_UpdateWithUncompressed(&p->decoder, src, srcSizeCur);
src += srcSizeCur;
*srcLen += srcSizeCur;
p->unpackSize -= (UInt32)srcSizeCur;
p->state = (p->unpackSize == 0) ? LZMA2_STATE_CONTROL : LZMA2_STATE_DATA_CONT;
}
else
{
SizeT outSizeProcessed;
SRes res;
if (p->state == LZMA2_STATE_DATA)
{
int mode = LZMA2_GET_LZMA_MODE(p);
Bool initDic = (mode == 3);
Bool initState = (mode > 0);
if ((!initDic && p->needInitDic) || (!initState && p->needInitState))
return SZ_ERROR_DATA;
LzmaDec_InitDicAndState(&p->decoder, initDic, initState);
p->needInitDic = False;
p->needInitState = False;
p->state = LZMA2_STATE_DATA_CONT;
}
if (srcSizeCur > p->packSize)
srcSizeCur = (SizeT)p->packSize;
res = LzmaDec_DecodeToDic(&p->decoder, dicPos + destSizeCur, src, &srcSizeCur, curFinishMode, status);
src += srcSizeCur;
*srcLen += srcSizeCur;
p->packSize -= (UInt32)srcSizeCur;
outSizeProcessed = p->decoder.dicPos - dicPos;
p->unpackSize -= (UInt32)outSizeProcessed;
RINOK(res);
if (*status == LZMA_STATUS_NEEDS_MORE_INPUT)
return res;
if (srcSizeCur == 0 && outSizeProcessed == 0)
{
if (*status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK ||
p->unpackSize != 0 || p->packSize != 0)
return SZ_ERROR_DATA;
p->state = LZMA2_STATE_CONTROL;
}
if (*status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
*status = LZMA_STATUS_NOT_FINISHED;
}
}
}
*status = LZMA_STATUS_FINISHED_WITH_MARK;
return SZ_OK;
}
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
{
SizeT outSize = *destLen, inSize = *srcLen;
*srcLen = *destLen = 0;
for (;;)
{
SizeT srcSizeCur = inSize, outSizeCur, dicPos;
ELzmaFinishMode curFinishMode;
SRes res;
if (p->decoder.dicPos == p->decoder.dicBufSize)
p->decoder.dicPos = 0;
dicPos = p->decoder.dicPos;
if (outSize > p->decoder.dicBufSize - dicPos)
{
outSizeCur = p->decoder.dicBufSize;
curFinishMode = LZMA_FINISH_ANY;
}
else
{
outSizeCur = dicPos + outSize;
curFinishMode = finishMode;
}
res = Lzma2Dec_DecodeToDic(p, outSizeCur, src, &srcSizeCur, curFinishMode, status);
src += srcSizeCur;
inSize -= srcSizeCur;
*srcLen += srcSizeCur;
outSizeCur = p->decoder.dicPos - dicPos;
memcpy(dest, p->decoder.dic + dicPos, outSizeCur);
dest += outSizeCur;
outSize -= outSizeCur;
*destLen += outSizeCur;
if (res != 0)
return res;
if (outSizeCur == 0 || outSize == 0)
return SZ_OK;
}
}
SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc)
{
CLzma2Dec decoder;
SRes res;
SizeT outSize = *destLen, inSize = *srcLen;
Byte props[LZMA_PROPS_SIZE];
Lzma2Dec_Construct(&decoder);
*destLen = *srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
decoder.decoder.dic = dest;
decoder.decoder.dicBufSize = outSize;
RINOK(Lzma2Dec_GetOldProps(prop, props));
RINOK(LzmaDec_AllocateProbs(&decoder.decoder, props, LZMA_PROPS_SIZE, alloc));
*srcLen = inSize;
res = Lzma2Dec_DecodeToDic(&decoder, outSize, src, srcLen, finishMode, status);
*destLen = decoder.decoder.dicPos;
if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
res = SZ_ERROR_INPUT_EOF;
LzmaDec_FreeProbs(&decoder.decoder, alloc);
return res;
}

84
C/Lzma2Dec.h Executable file
View File

@@ -0,0 +1,84 @@
/* Lzma2Dec.h -- LZMA2 Decoder
2009-05-03 : Igor Pavlov : Public domain */
#ifndef __LZMA2_DEC_H
#define __LZMA2_DEC_H
#include "LzmaDec.h"
#ifdef __cplusplus
extern "C" {
#endif
/* ---------- State Interface ---------- */
typedef struct
{
CLzmaDec decoder;
UInt32 packSize;
UInt32 unpackSize;
int state;
Byte control;
Bool needInitDic;
Bool needInitState;
Bool needInitProp;
} CLzma2Dec;
#define Lzma2Dec_Construct(p) LzmaDec_Construct(&(p)->decoder)
#define Lzma2Dec_FreeProbs(p, alloc) LzmaDec_FreeProbs(&(p)->decoder, alloc);
#define Lzma2Dec_Free(p, alloc) LzmaDec_Free(&(p)->decoder, alloc);
SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc);
SRes Lzma2Dec_Allocate(CLzma2Dec *p, Byte prop, ISzAlloc *alloc);
void Lzma2Dec_Init(CLzma2Dec *p);
/*
finishMode:
It has meaning only if the decoding reaches output limit (*destLen or dicLimit).
LZMA_FINISH_ANY - use smallest number of input bytes
LZMA_FINISH_END - read EndOfStream marker after decoding
Returns:
SZ_OK
status:
LZMA_STATUS_FINISHED_WITH_MARK
LZMA_STATUS_NOT_FINISHED
LZMA_STATUS_NEEDS_MORE_INPUT
SZ_ERROR_DATA - Data error
*/
SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
/* ---------- One Call Interface ---------- */
/*
finishMode:
It has meaning only if the decoding reaches output limit (*destLen).
LZMA_FINISH_ANY - use smallest number of input bytes
LZMA_FINISH_END - read EndOfStream marker after decoding
Returns:
SZ_OK
status:
LZMA_STATUS_FINISHED_WITH_MARK
LZMA_STATUS_NOT_FINISHED
SZ_ERROR_DATA - Data error
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_UNSUPPORTED - Unsupported properties
SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
*/
SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc);
#ifdef __cplusplus
}
#endif
#endif

477
C/Lzma2Enc.c Executable file
View File

@@ -0,0 +1,477 @@
/* Lzma2Enc.c -- LZMA2 Encoder
2010-03-25 : Igor Pavlov : Public domain */
/* #include <stdio.h> */
#include <string.h>
/* #define _7ZIP_ST */
#include "Lzma2Enc.h"
#ifndef _7ZIP_ST
#include "MtCoder.h"
#else
#define NUM_MT_CODER_THREADS_MAX 1
#endif
#define LZMA2_CONTROL_LZMA (1 << 7)
#define LZMA2_CONTROL_COPY_NO_RESET 2
#define LZMA2_CONTROL_COPY_RESET_DIC 1
#define LZMA2_CONTROL_EOF 0
#define LZMA2_LCLP_MAX 4
#define LZMA2_DIC_SIZE_FROM_PROP(p) (((UInt32)2 | ((p) & 1)) << ((p) / 2 + 11))
#define LZMA2_PACK_SIZE_MAX (1 << 16)
#define LZMA2_COPY_CHUNK_SIZE LZMA2_PACK_SIZE_MAX
#define LZMA2_UNPACK_SIZE_MAX (1 << 21)
#define LZMA2_KEEP_WINDOW_SIZE LZMA2_UNPACK_SIZE_MAX
#define LZMA2_CHUNK_SIZE_COMPRESSED_MAX ((1 << 16) + 16)
#define PRF(x) /* x */
/* ---------- CLzma2EncInt ---------- */
typedef struct
{
CLzmaEncHandle enc;
UInt64 srcPos;
Byte props;
Bool needInitState;
Bool needInitProp;
} CLzma2EncInt;
static SRes Lzma2EncInt_Init(CLzma2EncInt *p, const CLzma2EncProps *props)
{
Byte propsEncoded[LZMA_PROPS_SIZE];
SizeT propsSize = LZMA_PROPS_SIZE;
RINOK(LzmaEnc_SetProps(p->enc, &props->lzmaProps));
RINOK(LzmaEnc_WriteProperties(p->enc, propsEncoded, &propsSize));
p->srcPos = 0;
p->props = propsEncoded[0];
p->needInitState = True;
p->needInitProp = True;
return SZ_OK;
}
SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, UInt32 keepWindowSize,
ISzAlloc *alloc, ISzAlloc *allocBig);
SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig);
SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize);
const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp);
void LzmaEnc_Finish(CLzmaEncHandle pp);
void LzmaEnc_SaveState(CLzmaEncHandle pp);
void LzmaEnc_RestoreState(CLzmaEncHandle pp);
static SRes Lzma2EncInt_EncodeSubblock(CLzma2EncInt *p, Byte *outBuf,
size_t *packSizeRes, ISeqOutStream *outStream)
{
size_t packSizeLimit = *packSizeRes;
size_t packSize = packSizeLimit;
UInt32 unpackSize = LZMA2_UNPACK_SIZE_MAX;
unsigned lzHeaderSize = 5 + (p->needInitProp ? 1 : 0);
Bool useCopyBlock;
SRes res;
*packSizeRes = 0;
if (packSize < lzHeaderSize)
return SZ_ERROR_OUTPUT_EOF;
packSize -= lzHeaderSize;
LzmaEnc_SaveState(p->enc);
res = LzmaEnc_CodeOneMemBlock(p->enc, p->needInitState,
outBuf + lzHeaderSize, &packSize, LZMA2_PACK_SIZE_MAX, &unpackSize);
PRF(printf("\npackSize = %7d unpackSize = %7d ", packSize, unpackSize));
if (unpackSize == 0)
return res;
if (res == SZ_OK)
useCopyBlock = (packSize + 2 >= unpackSize || packSize > (1 << 16));
else
{
if (res != SZ_ERROR_OUTPUT_EOF)
return res;
res = SZ_OK;
useCopyBlock = True;
}
if (useCopyBlock)
{
size_t destPos = 0;
PRF(printf("################# COPY "));
while (unpackSize > 0)
{
UInt32 u = (unpackSize < LZMA2_COPY_CHUNK_SIZE) ? unpackSize : LZMA2_COPY_CHUNK_SIZE;
if (packSizeLimit - destPos < u + 3)
return SZ_ERROR_OUTPUT_EOF;
outBuf[destPos++] = (Byte)(p->srcPos == 0 ? LZMA2_CONTROL_COPY_RESET_DIC : LZMA2_CONTROL_COPY_NO_RESET);
outBuf[destPos++] = (Byte)((u - 1) >> 8);
outBuf[destPos++] = (Byte)(u - 1);
memcpy(outBuf + destPos, LzmaEnc_GetCurBuf(p->enc) - unpackSize, u);
unpackSize -= u;
destPos += u;
p->srcPos += u;
if (outStream)
{
*packSizeRes += destPos;
if (outStream->Write(outStream, outBuf, destPos) != destPos)
return SZ_ERROR_WRITE;
destPos = 0;
}
else
*packSizeRes = destPos;
/* needInitState = True; */
}
LzmaEnc_RestoreState(p->enc);
return SZ_OK;
}
{
size_t destPos = 0;
UInt32 u = unpackSize - 1;
UInt32 pm = (UInt32)(packSize - 1);
unsigned mode = (p->srcPos == 0) ? 3 : (p->needInitState ? (p->needInitProp ? 2 : 1) : 0);
PRF(printf(" "));
outBuf[destPos++] = (Byte)(LZMA2_CONTROL_LZMA | (mode << 5) | (u >> 16) & 0x1F);
outBuf[destPos++] = (Byte)(u >> 8);
outBuf[destPos++] = (Byte)u;
outBuf[destPos++] = (Byte)(pm >> 8);
outBuf[destPos++] = (Byte)pm;
if (p->needInitProp)
outBuf[destPos++] = p->props;
p->needInitProp = False;
p->needInitState = False;
destPos += packSize;
p->srcPos += unpackSize;
if (outStream)
if (outStream->Write(outStream, outBuf, destPos) != destPos)
return SZ_ERROR_WRITE;
*packSizeRes = destPos;
return SZ_OK;
}
}
/* ---------- Lzma2 Props ---------- */
void Lzma2EncProps_Init(CLzma2EncProps *p)
{
LzmaEncProps_Init(&p->lzmaProps);
p->numTotalThreads = -1;
p->numBlockThreads = -1;
p->blockSize = 0;
}
void Lzma2EncProps_Normalize(CLzma2EncProps *p)
{
int t1, t1n, t2, t3;
{
CLzmaEncProps lzmaProps = p->lzmaProps;
LzmaEncProps_Normalize(&lzmaProps);
t1n = lzmaProps.numThreads;
}
t1 = p->lzmaProps.numThreads;
t2 = p->numBlockThreads;
t3 = p->numTotalThreads;
if (t2 > NUM_MT_CODER_THREADS_MAX)
t2 = NUM_MT_CODER_THREADS_MAX;
if (t3 <= 0)
{
if (t2 <= 0)
t2 = 1;
t3 = t1n * t2;
}
else if (t2 <= 0)
{
t2 = t3 / t1n;
if (t2 == 0)
{
t1 = 1;
t2 = t3;
}
if (t2 > NUM_MT_CODER_THREADS_MAX)
t2 = NUM_MT_CODER_THREADS_MAX;
}
else if (t1 <= 0)
{
t1 = t3 / t2;
if (t1 == 0)
t1 = 1;
}
else
t3 = t1n * t2;
p->lzmaProps.numThreads = t1;
p->numBlockThreads = t2;
p->numTotalThreads = t3;
LzmaEncProps_Normalize(&p->lzmaProps);
if (p->blockSize == 0)
{
UInt32 dictSize = p->lzmaProps.dictSize;
UInt64 blockSize = (UInt64)dictSize << 2;
const UInt32 kMinSize = (UInt32)1 << 20;
const UInt32 kMaxSize = (UInt32)1 << 28;
if (blockSize < kMinSize) blockSize = kMinSize;
if (blockSize > kMaxSize) blockSize = kMaxSize;
if (blockSize < dictSize) blockSize = dictSize;
p->blockSize = (size_t)blockSize;
}
}
static SRes Progress(ICompressProgress *p, UInt64 inSize, UInt64 outSize)
{
return (p && p->Progress(p, inSize, outSize) != SZ_OK) ? SZ_ERROR_PROGRESS : SZ_OK;
}
/* ---------- Lzma2 ---------- */
typedef struct
{
Byte propEncoded;
CLzma2EncProps props;
Byte *outBuf;
ISzAlloc *alloc;
ISzAlloc *allocBig;
CLzma2EncInt coders[NUM_MT_CODER_THREADS_MAX];
#ifndef _7ZIP_ST
CMtCoder mtCoder;
#endif
} CLzma2Enc;
/* ---------- Lzma2EncThread ---------- */
static SRes Lzma2Enc_EncodeMt1(CLzma2EncInt *p, CLzma2Enc *mainEncoder,
ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress)
{
UInt64 packTotal = 0;
SRes res = SZ_OK;
if (mainEncoder->outBuf == 0)
{
mainEncoder->outBuf = IAlloc_Alloc(mainEncoder->alloc, LZMA2_CHUNK_SIZE_COMPRESSED_MAX);
if (mainEncoder->outBuf == 0)
return SZ_ERROR_MEM;
}
RINOK(Lzma2EncInt_Init(p, &mainEncoder->props));
RINOK(LzmaEnc_PrepareForLzma2(p->enc, inStream, LZMA2_KEEP_WINDOW_SIZE,
mainEncoder->alloc, mainEncoder->allocBig));
for (;;)
{
size_t packSize = LZMA2_CHUNK_SIZE_COMPRESSED_MAX;
res = Lzma2EncInt_EncodeSubblock(p, mainEncoder->outBuf, &packSize, outStream);
if (res != SZ_OK)
break;
packTotal += packSize;
res = Progress(progress, p->srcPos, packTotal);
if (res != SZ_OK)
break;
if (packSize == 0)
break;
}
LzmaEnc_Finish(p->enc);
if (res == SZ_OK)
{
Byte b = 0;
if (outStream->Write(outStream, &b, 1) != 1)
return SZ_ERROR_WRITE;
}
return res;
}
#ifndef _7ZIP_ST
typedef struct
{
IMtCoderCallback funcTable;
CLzma2Enc *lzma2Enc;
} CMtCallbackImp;
static SRes MtCallbackImp_Code(void *pp, unsigned index, Byte *dest, size_t *destSize,
const Byte *src, size_t srcSize, int finished)
{
CMtCallbackImp *imp = (CMtCallbackImp *)pp;
CLzma2Enc *mainEncoder = imp->lzma2Enc;
CLzma2EncInt *p = &mainEncoder->coders[index];
SRes res = SZ_OK;
{
size_t destLim = *destSize;
*destSize = 0;
if (srcSize != 0)
{
RINOK(Lzma2EncInt_Init(p, &mainEncoder->props));
RINOK(LzmaEnc_MemPrepare(p->enc, src, srcSize, LZMA2_KEEP_WINDOW_SIZE,
mainEncoder->alloc, mainEncoder->allocBig));
while (p->srcPos < srcSize)
{
size_t packSize = destLim - *destSize;
res = Lzma2EncInt_EncodeSubblock(p, dest + *destSize, &packSize, NULL);
if (res != SZ_OK)
break;
*destSize += packSize;
if (packSize == 0)
{
res = SZ_ERROR_FAIL;
break;
}
if (MtProgress_Set(&mainEncoder->mtCoder.mtProgress, index, p->srcPos, *destSize) != SZ_OK)
{
res = SZ_ERROR_PROGRESS;
break;
}
}
LzmaEnc_Finish(p->enc);
if (res != SZ_OK)
return res;
}
if (finished)
{
if (*destSize == destLim)
return SZ_ERROR_OUTPUT_EOF;
dest[(*destSize)++] = 0;
}
}
return res;
}
#endif
/* ---------- Lzma2Enc ---------- */
CLzma2EncHandle Lzma2Enc_Create(ISzAlloc *alloc, ISzAlloc *allocBig)
{
CLzma2Enc *p = (CLzma2Enc *)alloc->Alloc(alloc, sizeof(CLzma2Enc));
if (p == 0)
return NULL;
Lzma2EncProps_Init(&p->props);
Lzma2EncProps_Normalize(&p->props);
p->outBuf = 0;
p->alloc = alloc;
p->allocBig = allocBig;
{
unsigned i;
for (i = 0; i < NUM_MT_CODER_THREADS_MAX; i++)
p->coders[i].enc = 0;
}
#ifndef _7ZIP_ST
MtCoder_Construct(&p->mtCoder);
#endif
return p;
}
void Lzma2Enc_Destroy(CLzma2EncHandle pp)
{
CLzma2Enc *p = (CLzma2Enc *)pp;
unsigned i;
for (i = 0; i < NUM_MT_CODER_THREADS_MAX; i++)
{
CLzma2EncInt *t = &p->coders[i];
if (t->enc)
{
LzmaEnc_Destroy(t->enc, p->alloc, p->allocBig);
t->enc = 0;
}
}
#ifndef _7ZIP_ST
MtCoder_Destruct(&p->mtCoder);
#endif
IAlloc_Free(p->alloc, p->outBuf);
IAlloc_Free(p->alloc, pp);
}
SRes Lzma2Enc_SetProps(CLzma2EncHandle pp, const CLzma2EncProps *props)
{
CLzma2Enc *p = (CLzma2Enc *)pp;
CLzmaEncProps lzmaProps = props->lzmaProps;
LzmaEncProps_Normalize(&lzmaProps);
if (lzmaProps.lc + lzmaProps.lp > LZMA2_LCLP_MAX)
return SZ_ERROR_PARAM;
p->props = *props;
Lzma2EncProps_Normalize(&p->props);
return SZ_OK;
}
Byte Lzma2Enc_WriteProperties(CLzma2EncHandle pp)
{
CLzma2Enc *p = (CLzma2Enc *)pp;
unsigned i;
UInt32 dicSize = LzmaEncProps_GetDictSize(&p->props.lzmaProps);
for (i = 0; i < 40; i++)
if (dicSize <= LZMA2_DIC_SIZE_FROM_PROP(i))
break;
return (Byte)i;
}
SRes Lzma2Enc_Encode(CLzma2EncHandle pp,
ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress)
{
CLzma2Enc *p = (CLzma2Enc *)pp;
int i;
for (i = 0; i < p->props.numBlockThreads; i++)
{
CLzma2EncInt *t = &p->coders[i];
if (t->enc == NULL)
{
t->enc = LzmaEnc_Create(p->alloc);
if (t->enc == NULL)
return SZ_ERROR_MEM;
}
}
#ifndef _7ZIP_ST
if (p->props.numBlockThreads <= 1)
#endif
return Lzma2Enc_EncodeMt1(&p->coders[0], p, outStream, inStream, progress);
#ifndef _7ZIP_ST
{
CMtCallbackImp mtCallback;
mtCallback.funcTable.Code = MtCallbackImp_Code;
mtCallback.lzma2Enc = p;
p->mtCoder.progress = progress;
p->mtCoder.inStream = inStream;
p->mtCoder.outStream = outStream;
p->mtCoder.alloc = p->alloc;
p->mtCoder.mtCallback = &mtCallback.funcTable;
p->mtCoder.blockSize = p->props.blockSize;
p->mtCoder.destBlockSize = p->props.blockSize + (p->props.blockSize >> 10) + 16;
p->mtCoder.numThreads = p->props.numBlockThreads;
return MtCoder_Code(&p->mtCoder);
}
#endif
}

66
C/Lzma2Enc.h Executable file
View File

@@ -0,0 +1,66 @@
/* Lzma2Enc.h -- LZMA2 Encoder
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZMA2_ENC_H
#define __LZMA2_ENC_H
#include "LzmaEnc.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct
{
CLzmaEncProps lzmaProps;
size_t blockSize;
int numBlockThreads;
int numTotalThreads;
} CLzma2EncProps;
void Lzma2EncProps_Init(CLzma2EncProps *p);
void Lzma2EncProps_Normalize(CLzma2EncProps *p);
/* ---------- CLzmaEnc2Handle Interface ---------- */
/* Lzma2Enc_* functions can return the following exit codes:
Returns:
SZ_OK - OK
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_PARAM - Incorrect paramater in props
SZ_ERROR_WRITE - Write callback error
SZ_ERROR_PROGRESS - some break from progress callback
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
*/
typedef void * CLzma2EncHandle;
CLzma2EncHandle Lzma2Enc_Create(ISzAlloc *alloc, ISzAlloc *allocBig);
void Lzma2Enc_Destroy(CLzma2EncHandle p);
SRes Lzma2Enc_SetProps(CLzma2EncHandle p, const CLzma2EncProps *props);
Byte Lzma2Enc_WriteProperties(CLzma2EncHandle p);
SRes Lzma2Enc_Encode(CLzma2EncHandle p,
ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress);
/* ---------- One Call Interface ---------- */
/* Lzma2Encode
Return code:
SZ_OK - OK
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_PARAM - Incorrect paramater
SZ_ERROR_OUTPUT_EOF - output buffer overflow
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
*/
/*
SRes Lzma2Encode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
const CLzmaEncProps *props, Byte *propsEncoded, int writeEndMark,
ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
*/
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,12 +1,15 @@
/* Lzma86Enc.h -- LZMA + x86 (BCJ) Filter Encoder
2008-08-05
Igor Pavlov
Public domain */
/* Lzma86.h -- LZMA + x86 (BCJ) Filter
2009-08-14 : Igor Pavlov : Public domain */
#ifndef __LZMA86ENC_H
#define __LZMA86ENC_H
#ifndef __LZMA86_H
#define __LZMA86_H
#include "../Types.h"
#include "Types.h"
EXTERN_C_BEGIN
#define LZMA86_SIZE_OFFSET (1 + 5)
#define LZMA86_HEADER_SIZE (LZMA86_SIZE_OFFSET + 8)
/*
It's an example for LZMA + x86 Filter use.
@@ -14,8 +17,8 @@ You can use .lzma86 extension, if you write that stream to file.
.lzma86 header adds one additional byte to standard .lzma header.
.lzma86 header (14 bytes):
Offset Size Description
0 1 = 0 - no filter,
= 1 - x86 filter
0 1 = 0 - no filter, pure LZMA
= 1 - x86 filter + LZMA
1 1 lc, lp and pb in encoded form
2 4 dictSize (little endian)
6 8 uncompressed size (little endian)
@@ -25,7 +28,6 @@ Lzma86_Encode
-------------
level - compression level: 0 <= level <= 9, the default value for "level" is 5.
dictSize - The dictionary size in bytes. The maximum value is
128 MB = (1 << 27) bytes for 32-bit version
1 GB = (1 << 30) bytes for 64-bit version
@@ -69,4 +71,41 @@ enum ESzFilterMode
SRes Lzma86_Encode(Byte *dest, size_t *destLen, const Byte *src, size_t srcLen,
int level, UInt32 dictSize, int filterMode);
/*
Lzma86_GetUnpackSize:
In:
src - input data
srcLen - input data size
Out:
unpackSize - size of uncompressed stream
Return code:
SZ_OK - OK
SZ_ERROR_INPUT_EOF - Error in headers
*/
SRes Lzma86_GetUnpackSize(const Byte *src, SizeT srcLen, UInt64 *unpackSize);
/*
Lzma86_Decode:
In:
dest - output data
destLen - output data size
src - input data
srcLen - input data size
Out:
destLen - processed output size
srcLen - processed input size
Return code:
SZ_OK - OK
SZ_ERROR_DATA - Data error
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_UNSUPPORTED - unsupported file
SZ_ERROR_INPUT_EOF - it needs more bytes in input buffer
*/
SRes Lzma86_Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen);
EXTERN_C_END
#endif

View File

@@ -1,20 +1,14 @@
/* Lzma86Dec.c -- LZMA + x86 (BCJ) Filter Decoder
2008-04-07
Igor Pavlov
Public domain */
2009-08-14 : Igor Pavlov : Public domain */
#include "Lzma86Dec.h"
#include "Lzma86.h"
#include "../Alloc.h"
#include "../Bra.h"
#include "../LzmaDec.h"
#define LZMA86_SIZE_OFFSET (1 + LZMA_PROPS_SIZE)
#define LZMA86_HEADER_SIZE (LZMA86_SIZE_OFFSET + 8)
#include "Alloc.h"
#include "Bra.h"
#include "LzmaDec.h"
static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); }
static void SzFree(void *p, void *address) { p = p; MyFree(address); }
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
SRes Lzma86_GetUnpackSize(const Byte *src, SizeT srcLen, UInt64 *unpackSize)
{
@@ -29,6 +23,7 @@ SRes Lzma86_GetUnpackSize(const Byte *src, SizeT srcLen, UInt64 *unpackSize)
SRes Lzma86_Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen)
{
ISzAlloc g_Alloc = { SzAlloc, SzFree };
SRes res;
int useFilter;
SizeT inSizePure;

View File

@@ -1,28 +1,23 @@
/* Lzma86Enc.c -- LZMA + x86 (BCJ) Filter Encoder
2008-08-05
Igor Pavlov
Public domain */
2009-08-14 : Igor Pavlov : Public domain */
#include <string.h>
#include "Lzma86Enc.h"
#include "Lzma86.h"
#include "../Alloc.h"
#include "../Bra.h"
#include "../LzmaEnc.h"
#include "Alloc.h"
#include "Bra.h"
#include "LzmaEnc.h"
#define SZE_OUT_OVERFLOW SZE_DATA_ERROR
static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); }
static void SzFree(void *p, void *address) { p = p; MyFree(address); }
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
#define LZMA86_SIZE_OFFSET (1 + LZMA_PROPS_SIZE)
#define LZMA86_HEADER_SIZE (LZMA86_SIZE_OFFSET + 8)
int Lzma86_Encode(Byte *dest, size_t *destLen, const Byte *src, size_t srcLen,
int level, UInt32 dictSize, int filterMode)
{
ISzAlloc g_Alloc = { SzAlloc, SzFree };
size_t outSize2 = *destLen;
Byte *filteredStream;
Bool useFilter;

View File

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

View File

@@ -1,11 +1,15 @@
/* LzmaDec.h -- LZMA Decoder
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZMADEC_H
#define __LZMADEC_H
#ifndef __LZMA_DEC_H
#define __LZMA_DEC_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* #define _LZMA_PROB32 */
/* _LZMA_PROB32 can increase the speed on some CPUs,
but memory usage for CLzmaDec::probs will be doubled in that case */
@@ -220,4 +224,8 @@ SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
ELzmaStatus *status, ISzAlloc *alloc);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,5 +1,5 @@
/* LzmaEnc.c -- LZMA Encoder
2009-02-02 : Igor Pavlov : Public domain */
2009-11-24 : Igor Pavlov : Public domain */
#include <string.h>
@@ -13,7 +13,7 @@
#include "LzmaEnc.h"
#include "LzFind.h"
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
#include "LzFindMt.h"
#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->numThreads < 0)
p->numThreads =
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
((p->btMode && p->algo) ? 2 : 1);
#else
1;
@@ -139,7 +139,7 @@ void LzmaEnc_FastPosInit(Byte *g_FastPos)
typedef unsigned CState;
typedef struct _COptimal
typedef struct
{
UInt32 price;
@@ -172,7 +172,7 @@ typedef struct _COptimal
#define kEndPosModelIndex 14
#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
#define kNumFullDistances (1 << (kEndPosModelIndex / 2))
#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
#ifdef _LZMA_PROB32
#define CLzmaProb UInt32
@@ -218,7 +218,7 @@ typedef struct
UInt32 counters[LZMA_NUM_PB_STATES_MAX];
} CLenPriceEnc;
typedef struct _CRangeEnc
typedef struct
{
UInt32 range;
Byte cache;
@@ -232,26 +232,6 @@ typedef struct _CRangeEnc
SRes res;
} CRangeEnc;
typedef struct _CSeqInStreamBuf
{
ISeqInStream funcTable;
const Byte *data;
SizeT rem;
} CSeqInStreamBuf;
static SRes MyRead(void *pp, void *data, size_t *size)
{
size_t curSize = *size;
CSeqInStreamBuf *p = (CSeqInStreamBuf *)pp;
if (p->rem < curSize)
curSize = p->rem;
memcpy(data, p->data, curSize);
p->rem -= curSize;
p->data += curSize;
*size = curSize;
return SZ_OK;
}
typedef struct
{
CLzmaProb *litProbs;
@@ -274,19 +254,19 @@ typedef struct
UInt32 state;
} CSaveState;
typedef struct _CLzmaEnc
typedef struct
{
IMatchFinder matchFinder;
void *matchFinderObj;
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
Bool mtMode;
CMatchFinderMt matchFinderMt;
#endif
CMatchFinder matchFinderBase;
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
Byte pad[128];
#endif
@@ -351,8 +331,7 @@ typedef struct _CLzmaEnc
UInt32 dictSize;
UInt32 matchFinderCycles;
ISeqInStream *inStream;
CSeqInStreamBuf seqBufInStream;
int needInit;
CSaveState saveState;
} CLzmaEnc;
@@ -449,7 +428,7 @@ SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
p->writeEndMark = props.writeEndMark;
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
/*
if (newMultiThread != _multiThread)
{
@@ -1698,7 +1677,7 @@ void LzmaEnc_Construct(CLzmaEnc *p)
{
RangeEnc_Construct(&p->rc);
MatchFinder_Construct(&p->matchFinderBase);
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
MatchFinderMt_Construct(&p->matchFinderMt);
p->matchFinderMt.MatchFinder = &p->matchFinderBase;
#endif
@@ -1737,7 +1716,7 @@ void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
{
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
#endif
MatchFinder_Free(&p->matchFinderBase, allocBig);
@@ -1754,11 +1733,10 @@ void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig)
static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize, UInt32 maxUnpackSize)
{
UInt32 nowPos32, startPos32;
if (p->inStream != 0)
if (p->needInit)
{
p->matchFinderBase.stream = p->inStream;
p->matchFinder.Init(p->matchFinderObj);
p->inStream = 0;
p->needInit = 0;
}
if (p->finished)
@@ -1923,7 +1901,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
if (!RangeEnc_Alloc(&p->rc, alloc))
return SZ_ERROR_MEM;
btMode = (p->matchFinderBase.btMode != 0);
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
p->mtMode = (p->multiThread && !p->fastMode && btMode);
#endif
@@ -1948,7 +1926,7 @@ static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, I
if (beforeSize + p->dictSize < keepWindowSize)
beforeSize = keepWindowSize - p->dictSize;
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
if (p->mtMode)
{
RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig));
@@ -2056,11 +2034,12 @@ static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *a
return SZ_OK;
}
static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqInStream *inStream, ISeqOutStream *outStream,
static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,
ISzAlloc *alloc, ISzAlloc *allocBig)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
p->inStream = inStream;
p->matchFinderBase.stream = inStream;
p->needInit = 1;
p->rc.outStream = outStream;
return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig);
}
@@ -2070,15 +2049,16 @@ SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp,
ISzAlloc *alloc, ISzAlloc *allocBig)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
p->inStream = inStream;
p->matchFinderBase.stream = inStream;
p->needInit = 1;
return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
}
static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen)
{
p->seqBufInStream.funcTable.Read = MyRead;
p->seqBufInStream.data = src;
p->seqBufInStream.rem = srcLen;
p->matchFinderBase.directInput = 1;
p->matchFinderBase.bufferBase = (Byte *)src;
p->matchFinderBase.directInputRem = srcLen;
}
SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
@@ -2086,13 +2066,14 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
{
CLzmaEnc *p = (CLzmaEnc *)pp;
LzmaEnc_SetInputBuf(p, src, srcLen);
p->inStream = &p->seqBufInStream.funcTable;
p->needInit = 1;
return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
}
void LzmaEnc_Finish(CLzmaEncHandle pp)
{
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
CLzmaEnc *p = (CLzmaEnc *)pp;
if (p->mtMode)
MatchFinderMt_ReleaseStream(&p->matchFinderMt);
@@ -2101,7 +2082,7 @@ void LzmaEnc_Finish(CLzmaEncHandle pp)
#endif
}
typedef struct _CSeqOutStreamBuf
typedef struct
{
ISeqOutStream funcTable;
Byte *data;
@@ -2170,21 +2151,17 @@ SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
return res;
}
SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
ISzAlloc *alloc, ISzAlloc *allocBig)
static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
SRes res = SZ_OK;
#ifdef COMPRESS_MF_MT
#ifndef _7ZIP_ST
Byte allocaDummy[0x300];
int i = 0;
for (i = 0; i < 16; i++)
allocaDummy[i] = (Byte)i;
#endif
RINOK(LzmaEnc_Prepare(pp, inStream, outStream, alloc, allocBig));
for (;;)
{
res = LzmaEnc_CodeOneBlock(p, False, 0, 0);
@@ -2200,10 +2177,17 @@ SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *i
}
}
}
LzmaEnc_Finish(pp);
LzmaEnc_Finish(p);
return res;
}
SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
ISzAlloc *alloc, ISzAlloc *allocBig)
{
RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig));
return LzmaEnc_Encode2((CLzmaEnc *)pp, progress);
}
SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
{
CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -2249,8 +2233,11 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte
outStream.overflow = False;
p->writeEndMark = writeEndMark;
res = LzmaEnc_Encode(pp, &outStream.funcTable, &p->seqBufInStream.funcTable,
progress, alloc, allocBig);
p->rc.outStream = &outStream.funcTable;
res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig);
if (res == SZ_OK)
res = LzmaEnc_Encode2(p, progress);
*destLen -= outStream.rem;
if (outStream.overflow)

View File

@@ -1,11 +1,15 @@
/* LzmaEnc.h -- LZMA Encoder
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZMAENC_H
#define __LZMAENC_H
#ifndef __LZMA_ENC_H
#define __LZMA_ENC_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
#define LZMA_PROPS_SIZE 5
typedef struct _CLzmaEncProps
@@ -69,4 +73,8 @@ SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,20 +1,16 @@
/* LzmaLib.h -- LZMA library interface
2008-08-05
Igor Pavlov
Public domain */
2009-04-07 : Igor Pavlov : Public domain */
#ifndef __LZMALIB_H
#define __LZMALIB_H
#ifndef __LZMA_LIB_H
#define __LZMA_LIB_H
#include "Types.h"
#ifdef __cplusplus
#define MY_EXTERN_C extern "C"
#else
#define MY_EXTERN_C extern
extern "C" {
#endif
#define MY_STDAPI MY_EXTERN_C int MY_STD_CALL
#define MY_STDAPI int MY_STD_CALL
#define LZMA_PROPS_SIZE 5
@@ -132,4 +128,8 @@ Returns:
MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, SizeT *srcLen,
const unsigned char *props, size_t propsSize);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,45 +0,0 @@
/* Lzma86Dec.h -- LZMA + x86 (BCJ) Filter Decoder
2008-08-05
Igor Pavlov
Public domain */
#ifndef __LZMA86DEC_H
#define __LZMA86DEC_H
#include "../Types.h"
/*
Lzma86_GetUnpackSize:
In:
src - input data
srcLen - input data size
Out:
unpackSize - size of uncompressed stream
Return code:
SZ_OK - OK
SZ_ERROR_INPUT_EOF - Error in headers
*/
SRes Lzma86_GetUnpackSize(const Byte *src, SizeT srcLen, UInt64 *unpackSize);
/*
Lzma86_Decode:
In:
dest - output data
destLen - output data size
src - input data
srcLen - input data size
Out:
destLen - processed output size
srcLen - processed input size
Return code:
SZ_OK - OK
SZ_ERROR_DATA - Data error
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_UNSUPPORTED - unsupported file
SZ_ERROR_INPUT_EOF - it needs more bytes in input buffer
*/
SRes Lzma86_Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen);
#endif

View File

@@ -1,44 +0,0 @@
PROG = lzma
CXX = g++
LIB =
RM = rm -f
CFLAGS = -c -O2 -Wall
OBJS = \
LzmaUtil.o \
Alloc.o \
LzFind.o \
LzmaDec.o \
LzmaEnc.o \
7zFile.o \
7zStream.o \
all: $(PROG)
$(PROG): $(OBJS)
$(CXX) -o $(PROG) $(LDFLAGS) $(OBJS) $(LIB) $(LIB2)
LzmaUtil.o: LzmaUtil.c
$(CXX) $(CFLAGS) LzmaUtil.c
Alloc.o: ../Alloc.c
$(CXX) $(CFLAGS) ../Alloc.c
LzFind.o: ../LzFind.c
$(CXX) $(CFLAGS) ../LzFind.c
LzmaDec.o: ../LzmaDec.c
$(CXX) $(CFLAGS) ../LzmaDec.c
LzmaEnc.o: ../LzmaEnc.c
$(CXX) $(CFLAGS) ../LzmaEnc.c
7zFile.o: ../7zFile.c
$(CXX) $(CFLAGS) ../7zFile.c
7zStream.o: ../7zStream.c
$(CXX) $(CFLAGS) ../7zStream.c
clean:
-$(RM) $(PROG) $(OBJS)

327
C/MtCoder.c Executable file
View File

@@ -0,0 +1,327 @@
/* MtCoder.c -- Multi-thread Coder
2010-03-24 : Igor Pavlov : Public domain */
#include <stdio.h>
#include "MtCoder.h"
void LoopThread_Construct(CLoopThread *p)
{
Thread_Construct(&p->thread);
Event_Construct(&p->startEvent);
Event_Construct(&p->finishedEvent);
}
void LoopThread_Close(CLoopThread *p)
{
Thread_Close(&p->thread);
Event_Close(&p->startEvent);
Event_Close(&p->finishedEvent);
}
static THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE LoopThreadFunc(void *pp)
{
CLoopThread *p = (CLoopThread *)pp;
for (;;)
{
if (Event_Wait(&p->startEvent) != 0)
return SZ_ERROR_THREAD;
if (p->stop)
return 0;
p->res = p->func(p->param);
if (Event_Set(&p->finishedEvent) != 0)
return SZ_ERROR_THREAD;
}
}
WRes LoopThread_Create(CLoopThread *p)
{
p->stop = 0;
RINOK(AutoResetEvent_CreateNotSignaled(&p->startEvent));
RINOK(AutoResetEvent_CreateNotSignaled(&p->finishedEvent));
return Thread_Create(&p->thread, LoopThreadFunc, p);
}
WRes LoopThread_StopAndWait(CLoopThread *p)
{
p->stop = 1;
if (Event_Set(&p->startEvent) != 0)
return SZ_ERROR_THREAD;
return Thread_Wait(&p->thread);
}
WRes LoopThread_StartSubThread(CLoopThread *p) { return Event_Set(&p->startEvent); }
WRes LoopThread_WaitSubThread(CLoopThread *p) { return Event_Wait(&p->finishedEvent); }
static SRes Progress(ICompressProgress *p, UInt64 inSize, UInt64 outSize)
{
return (p && p->Progress(p, inSize, outSize) != SZ_OK) ? SZ_ERROR_PROGRESS : SZ_OK;
}
static void MtProgress_Init(CMtProgress *p, ICompressProgress *progress)
{
unsigned i;
for (i = 0; i < NUM_MT_CODER_THREADS_MAX; i++)
p->inSizes[i] = p->outSizes[i] = 0;
p->totalInSize = p->totalOutSize = 0;
p->progress = progress;
p->res = SZ_OK;
}
static void MtProgress_Reinit(CMtProgress *p, unsigned index)
{
p->inSizes[index] = 0;
p->outSizes[index] = 0;
}
#define UPDATE_PROGRESS(size, prev, total) \
if (size != (UInt64)(Int64)-1) { total += size - prev; prev = size; }
SRes MtProgress_Set(CMtProgress *p, unsigned index, UInt64 inSize, UInt64 outSize)
{
SRes res;
CriticalSection_Enter(&p->cs);
UPDATE_PROGRESS(inSize, p->inSizes[index], p->totalInSize)
UPDATE_PROGRESS(outSize, p->outSizes[index], p->totalOutSize)
if (p->res == SZ_OK)
p->res = Progress(p->progress, p->totalInSize, p->totalOutSize);
res = p->res;
CriticalSection_Leave(&p->cs);
return res;
}
static void MtProgress_SetError(CMtProgress *p, SRes res)
{
CriticalSection_Enter(&p->cs);
if (p->res == SZ_OK)
p->res = res;
CriticalSection_Leave(&p->cs);
}
static void MtCoder_SetError(CMtCoder* p, SRes res)
{
CriticalSection_Enter(&p->cs);
if (p->res == SZ_OK)
p->res = res;
CriticalSection_Leave(&p->cs);
}
/* ---------- MtThread ---------- */
void CMtThread_Construct(CMtThread *p, CMtCoder *mtCoder)
{
p->mtCoder = mtCoder;
p->outBuf = 0;
p->inBuf = 0;
Event_Construct(&p->canRead);
Event_Construct(&p->canWrite);
LoopThread_Construct(&p->thread);
}
#define RINOK_THREAD(x) { if((x) != 0) return SZ_ERROR_THREAD; }
static void CMtThread_CloseEvents(CMtThread *p)
{
Event_Close(&p->canRead);
Event_Close(&p->canWrite);
}
static void CMtThread_Destruct(CMtThread *p)
{
CMtThread_CloseEvents(p);
if (Thread_WasCreated(&p->thread.thread))
{
LoopThread_StopAndWait(&p->thread);
LoopThread_Close(&p->thread);
}
if (p->mtCoder->alloc)
IAlloc_Free(p->mtCoder->alloc, p->outBuf);
p->outBuf = 0;
if (p->mtCoder->alloc)
IAlloc_Free(p->mtCoder->alloc, p->inBuf);
p->inBuf = 0;
}
#define MY_BUF_ALLOC(buf, size, newSize) \
if (buf == 0 || size != newSize) \
{ IAlloc_Free(p->mtCoder->alloc, buf); \
size = newSize; buf = IAlloc_Alloc(p->mtCoder->alloc, size); \
if (buf == 0) return SZ_ERROR_MEM; }
static SRes CMtThread_Prepare(CMtThread *p)
{
MY_BUF_ALLOC(p->inBuf, p->inBufSize, p->mtCoder->blockSize)
MY_BUF_ALLOC(p->outBuf, p->outBufSize, p->mtCoder->destBlockSize)
p->stopReading = False;
p->stopWriting = False;
RINOK_THREAD(AutoResetEvent_CreateNotSignaled(&p->canRead));
RINOK_THREAD(AutoResetEvent_CreateNotSignaled(&p->canWrite));
return SZ_OK;
}
static SRes FullRead(ISeqInStream *stream, Byte *data, size_t *processedSize)
{
size_t size = *processedSize;
*processedSize = 0;
while (size != 0)
{
size_t curSize = size;
SRes res = stream->Read(stream, data, &curSize);
*processedSize += curSize;
data += curSize;
size -= curSize;
RINOK(res);
if (curSize == 0)
return SZ_OK;
}
return SZ_OK;
}
#define GET_NEXT_THREAD(p) &p->mtCoder->threads[p->index == p->mtCoder->numThreads - 1 ? 0 : p->index + 1]
static SRes MtThread_Process(CMtThread *p, Bool *stop)
{
CMtThread *next;
*stop = True;
if (Event_Wait(&p->canRead) != 0)
return SZ_ERROR_THREAD;
next = GET_NEXT_THREAD(p);
if (p->stopReading)
{
next->stopReading = True;
return Event_Set(&next->canRead) == 0 ? SZ_OK : SZ_ERROR_THREAD;
}
{
size_t size = p->mtCoder->blockSize;
size_t destSize = p->outBufSize;
RINOK(FullRead(p->mtCoder->inStream, p->inBuf, &size));
next->stopReading = *stop = (size != p->mtCoder->blockSize);
if (Event_Set(&next->canRead) != 0)
return SZ_ERROR_THREAD;
RINOK(p->mtCoder->mtCallback->Code(p->mtCoder->mtCallback, p->index,
p->outBuf, &destSize, p->inBuf, size, *stop));
MtProgress_Reinit(&p->mtCoder->mtProgress, p->index);
if (Event_Wait(&p->canWrite) != 0)
return SZ_ERROR_THREAD;
if (p->stopWriting)
return SZ_ERROR_FAIL;
if (p->mtCoder->outStream->Write(p->mtCoder->outStream, p->outBuf, destSize) != destSize)
return SZ_ERROR_WRITE;
return Event_Set(&next->canWrite) == 0 ? SZ_OK : SZ_ERROR_THREAD;
}
}
static THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE ThreadFunc(void *pp)
{
CMtThread *p = (CMtThread *)pp;
for (;;)
{
Bool stop;
CMtThread *next = GET_NEXT_THREAD(p);
SRes res = MtThread_Process(p, &stop);
if (res != SZ_OK)
{
MtCoder_SetError(p->mtCoder, res);
MtProgress_SetError(&p->mtCoder->mtProgress, res);
next->stopReading = True;
next->stopWriting = True;
Event_Set(&next->canRead);
Event_Set(&next->canWrite);
return res;
}
if (stop)
return 0;
}
}
void MtCoder_Construct(CMtCoder* p)
{
unsigned i;
p->alloc = 0;
for (i = 0; i < NUM_MT_CODER_THREADS_MAX; i++)
{
CMtThread *t = &p->threads[i];
t->index = i;
CMtThread_Construct(t, p);
}
CriticalSection_Init(&p->cs);
CriticalSection_Init(&p->mtProgress.cs);
}
void MtCoder_Destruct(CMtCoder* p)
{
unsigned i;
for (i = 0; i < NUM_MT_CODER_THREADS_MAX; i++)
CMtThread_Destruct(&p->threads[i]);
CriticalSection_Delete(&p->cs);
CriticalSection_Delete(&p->mtProgress.cs);
}
SRes MtCoder_Code(CMtCoder *p)
{
unsigned i, numThreads = p->numThreads;
SRes res = SZ_OK;
p->res = SZ_OK;
MtProgress_Init(&p->mtProgress, p->progress);
for (i = 0; i < numThreads; i++)
{
RINOK(CMtThread_Prepare(&p->threads[i]));
}
for (i = 0; i < numThreads; i++)
{
CMtThread *t = &p->threads[i];
CLoopThread *lt = &t->thread;
if (!Thread_WasCreated(&lt->thread))
{
lt->func = ThreadFunc;
lt->param = t;
if (LoopThread_Create(lt) != SZ_OK)
{
res = SZ_ERROR_THREAD;
break;
}
}
}
if (res == SZ_OK)
{
unsigned j;
for (i = 0; i < numThreads; i++)
{
CMtThread *t = &p->threads[i];
if (LoopThread_StartSubThread(&t->thread) != SZ_OK)
{
res = SZ_ERROR_THREAD;
p->threads[0].stopReading = True;
break;
}
}
Event_Set(&p->threads[0].canWrite);
Event_Set(&p->threads[0].canRead);
for (j = 0; j < i; j++)
LoopThread_WaitSubThread(&p->threads[j].thread);
}
for (i = 0; i < numThreads; i++)
CMtThread_CloseEvents(&p->threads[i]);
return (res == SZ_OK) ? p->res : res;
}

98
C/MtCoder.h Executable file
View File

@@ -0,0 +1,98 @@
/* MtCoder.h -- Multi-thread Coder
2009-11-19 : Igor Pavlov : Public domain */
#ifndef __MT_CODER_H
#define __MT_CODER_H
#include "Threads.h"
EXTERN_C_BEGIN
typedef struct
{
CThread thread;
CAutoResetEvent startEvent;
CAutoResetEvent finishedEvent;
int stop;
THREAD_FUNC_TYPE func;
LPVOID param;
THREAD_FUNC_RET_TYPE res;
} CLoopThread;
void LoopThread_Construct(CLoopThread *p);
void LoopThread_Close(CLoopThread *p);
WRes LoopThread_Create(CLoopThread *p);
WRes LoopThread_StopAndWait(CLoopThread *p);
WRes LoopThread_StartSubThread(CLoopThread *p);
WRes LoopThread_WaitSubThread(CLoopThread *p);
#ifndef _7ZIP_ST
#define NUM_MT_CODER_THREADS_MAX 32
#else
#define NUM_MT_CODER_THREADS_MAX 1
#endif
typedef struct
{
UInt64 totalInSize;
UInt64 totalOutSize;
ICompressProgress *progress;
SRes res;
CCriticalSection cs;
UInt64 inSizes[NUM_MT_CODER_THREADS_MAX];
UInt64 outSizes[NUM_MT_CODER_THREADS_MAX];
} CMtProgress;
SRes MtProgress_Set(CMtProgress *p, unsigned index, UInt64 inSize, UInt64 outSize);
struct _CMtCoder;
typedef struct
{
struct _CMtCoder *mtCoder;
Byte *outBuf;
size_t outBufSize;
Byte *inBuf;
size_t inBufSize;
unsigned index;
CLoopThread thread;
Bool stopReading;
Bool stopWriting;
CAutoResetEvent canRead;
CAutoResetEvent canWrite;
} CMtThread;
typedef struct
{
SRes (*Code)(void *p, unsigned index, Byte *dest, size_t *destSize,
const Byte *src, size_t srcSize, int finished);
} IMtCoderCallback;
typedef struct _CMtCoder
{
size_t blockSize;
size_t destBlockSize;
unsigned numThreads;
ISeqInStream *inStream;
ISeqOutStream *outStream;
ICompressProgress *progress;
ISzAlloc *alloc;
IMtCoderCallback *mtCallback;
CCriticalSection cs;
SRes res;
CMtProgress mtProgress;
CMtThread threads[NUM_MT_CODER_THREADS_MAX];
} CMtCoder;
void MtCoder_Construct(CMtCoder* p);
void MtCoder_Destruct(CMtCoder* p);
SRes MtCoder_Code(CMtCoder *p);
EXTERN_C_END
#endif

81
C/Ppmd.h Executable file
View File

@@ -0,0 +1,81 @@
/* Ppmd.h -- PPMD codec common code
2010-03-12 : Igor Pavlov : Public domain
This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
#ifndef __PPMD_H
#define __PPMD_H
#include "Types.h"
#include "CpuArch.h"
EXTERN_C_BEGIN
#ifdef MY_CPU_32BIT
#define PPMD_32BIT
#endif
#define PPMD_INT_BITS 7
#define PPMD_PERIOD_BITS 7
#define PPMD_BIN_SCALE (1 << (PPMD_INT_BITS + PPMD_PERIOD_BITS))
#define PPMD_GET_MEAN_SPEC(summ, shift, round) (((summ) + (1 << ((shift) - (round)))) >> (shift))
#define PPMD_GET_MEAN(summ) PPMD_GET_MEAN_SPEC((summ), PPMD_PERIOD_BITS, 2)
#define PPMD_UPDATE_PROB_0(prob) ((prob) + (1 << PPMD_INT_BITS) - PPMD_GET_MEAN(prob))
#define PPMD_UPDATE_PROB_1(prob) ((prob) - PPMD_GET_MEAN(prob))
#define PPMD_N1 4
#define PPMD_N2 4
#define PPMD_N3 4
#define PPMD_N4 ((128 + 3 - 1 * PPMD_N1 - 2 * PPMD_N2 - 3 * PPMD_N3) / 4)
#define PPMD_NUM_INDEXES (PPMD_N1 + PPMD_N2 + PPMD_N3 + PPMD_N4)
/* SEE-contexts for PPM-contexts with masked symbols */
typedef struct
{
UInt16 Summ; /* Freq */
Byte Shift; /* Speed of Freq change; low Shift is for fast change */
Byte Count; /* Count to next change of Shift */
} CPpmd_See;
#define Ppmd_See_Update(p) if ((p)->Shift < PPMD_PERIOD_BITS && --(p)->Count == 0) \
{ (p)->Summ <<= 1; (p)->Count = (Byte)(3 << (p)->Shift++); }
typedef struct
{
Byte Symbol;
Byte Freq;
UInt16 SuccessorLow;
UInt16 SuccessorHigh;
} CPpmd_State;
typedef
#ifdef PPMD_32BIT
CPpmd_State *
#else
UInt32
#endif
CPpmd_State_Ref;
typedef
#ifdef PPMD_32BIT
void *
#else
UInt32
#endif
CPpmd_Void_Ref;
typedef
#ifdef PPMD_32BIT
Byte *
#else
UInt32
#endif
CPpmd_Byte_Ref;
#define PPMD_SetAllBitsIn256Bytes(p) \
{ unsigned i; for (i = 0; i < 256 / sizeof(p[0]); i += 8) { \
p[i+7] = p[i+6] = p[i+5] = p[i+4] = p[i+3] = p[i+2] = p[i+1] = p[i+0] = ~(size_t)0; }}
EXTERN_C_END
#endif

708
C/Ppmd7.c Executable file
View File

@@ -0,0 +1,708 @@
/* Ppmd7.c -- PPMdH codec
2010-03-12 : Igor Pavlov : Public domain
This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
#include <memory.h>
#include "Ppmd7.h"
const Byte PPMD7_kExpEscape[16] = { 25, 14, 9, 7, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2 };
static const UInt16 kInitBinEsc[] = { 0x3CDD, 0x1F3F, 0x59BF, 0x48F3, 0x64A1, 0x5ABC, 0x6632, 0x6051};
#define MAX_FREQ 124
#define UNIT_SIZE 12
#define U2B(nu) ((UInt32)(nu) * UNIT_SIZE)
#define U2I(nu) (p->Units2Indx[(nu) - 1])
#define I2U(indx) (p->Indx2Units[indx])
#ifdef PPMD_32BIT
#define REF(ptr) (ptr)
#else
#define REF(ptr) ((UInt32)((Byte *)(ptr) - (p)->Base))
#endif
#define STATS_REF(ptr) ((CPpmd_State_Ref)REF(ptr))
#define CTX(ref) ((CPpmd7_Context *)Ppmd7_GetContext(p, ref))
#define STATS(ctx) Ppmd7_GetStats(p, ctx)
#define ONE_STATE(ctx) Ppmd7Context_OneState(ctx)
#define SUFFIX(ctx) CTX((ctx)->Suffix)
typedef CPpmd7_Context * CTX_PTR;
struct CPpmd7_Node_;
typedef
#ifdef PPMD_32BIT
struct CPpmd7_Node_ *
#else
UInt32
#endif
CPpmd7_Node_Ref;
typedef struct CPpmd7_Node_
{
UInt16 Stamp; /* must be at offset 0 as CPpmd7_Context::NumStats. Stamp=0 means free */
UInt16 NU;
CPpmd7_Node_Ref Next; /* must be at offset >= 4 */
CPpmd7_Node_Ref Prev;
} CPpmd7_Node;
#ifdef PPMD_32BIT
#define NODE(ptr) (ptr)
#else
#define NODE(offs) ((CPpmd7_Node *)(p->Base + (offs)))
#endif
void Ppmd7_Construct(CPpmd7 *p)
{
unsigned i, k, m;
p->Base = 0;
for (i = 0, k = 0; i < PPMD_NUM_INDEXES; i++)
{
unsigned step = (i >= 12 ? 4 : (i >> 2) + 1);
do { p->Units2Indx[k++] = (Byte)i; } while(--step);
p->Indx2Units[i] = (Byte)k;
}
p->NS2BSIndx[0] = (0 << 1);
p->NS2BSIndx[1] = (1 << 1);
memset(p->NS2BSIndx + 2, (2 << 1), 9);
memset(p->NS2BSIndx + 11, (3 << 1), 256 - 11);
for (i = 0; i < 3; i++)
p->NS2Indx[i] = (Byte)i;
for (m = i, k = 1; i < 256; i++)
{
p->NS2Indx[i] = (Byte)m;
if (--k == 0)
k = (++m) - 2;
}
memset(p->HB2Flag, 0, 0x40);
memset(p->HB2Flag + 0x40, 8, 0x100 - 0x40);
}
void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc)
{
alloc->Free(alloc, p->Base);
p->Size = 0;
p->Base = 0;
}
Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc)
{
if (p->Base == 0 || p->Size != size)
{
Ppmd7_Free(p, alloc);
p->AlignOffset =
#ifdef PPMD_32BIT
(4 - size) & 3;
#else
4 - (size & 3);
#endif
if ((p->Base = (Byte *)alloc->Alloc(alloc, p->AlignOffset + size
#ifndef PPMD_32BIT
+ UNIT_SIZE
#endif
)) == 0)
return False;
p->Size = size;
}
return True;
}
static void InsertNode(CPpmd7 *p, void *node, unsigned indx)
{
*((CPpmd_Void_Ref *)node) = p->FreeList[indx];
p->FreeList[indx] = REF(node);
}
static void *RemoveNode(CPpmd7 *p, unsigned indx)
{
CPpmd_Void_Ref *node = (CPpmd_Void_Ref *)Ppmd7_GetPtr(p, p->FreeList[indx]);
p->FreeList[indx] = *node;
return node;
}
static void SplitBlock(CPpmd7 *p, void *ptr, unsigned oldIndx, unsigned newIndx)
{
unsigned i, nu = I2U(oldIndx) - I2U(newIndx);
ptr = (Byte *)ptr + U2B(I2U(newIndx));
if (I2U(i = U2I(nu)) != nu)
{
unsigned k = I2U(--i);
InsertNode(p, ((Byte *)ptr) + U2B(k), nu - k - 1);
}
InsertNode(p, ptr, i);
}
static void GlueFreeBlocks(CPpmd7 *p)
{
#ifdef PPMD_32BIT
CPpmd7_Node headItem;
CPpmd7_Node_Ref head = &headItem;
#else
CPpmd7_Node_Ref head = p->AlignOffset + p->Size;
#endif
CPpmd7_Node_Ref n = head;
unsigned i;
p->GlueCount = 255;
/* create doubly-linked list of free blocks */
for (i = 0; i < PPMD_NUM_INDEXES; i++)
{
UInt16 nu = I2U(i);
CPpmd7_Node_Ref next = (CPpmd7_Node_Ref)p->FreeList[i];
p->FreeList[i] = 0;
while (next != 0)
{
CPpmd7_Node *node = NODE(next);
node->Next = n;
n = NODE(n)->Prev = next;
next = *(const CPpmd7_Node_Ref *)node;
node->Stamp = 0;
node->NU = (UInt16)nu;
}
}
NODE(head)->Stamp = 1;
NODE(head)->Next = n;
NODE(n)->Prev = head;
if (p->LoUnit != p->HiUnit)
((CPpmd7_Node *)p->LoUnit)->Stamp = 1;
/* Glue free blocks */
while (n != head)
{
CPpmd7_Node *node = NODE(n);
UInt32 nu = (UInt32)node->NU;
for (;;)
{
CPpmd7_Node *node2 = NODE(n) + nu;
nu += node2->NU;
if (node2->Stamp != 0 || nu >= 0x10000)
break;
NODE(node2->Prev)->Next = node2->Next;
NODE(node2->Next)->Prev = node2->Prev;
node->NU = (UInt16)nu;
}
n = node->Next;
}
/* Fill lists of free blocks */
for (n = NODE(head)->Next; n != head;)
{
CPpmd7_Node *node = NODE(n);
unsigned nu;
CPpmd7_Node_Ref next = node->Next;
for (nu = node->NU; nu > 128; nu -= 128, node += 128)
InsertNode(p, node, PPMD_NUM_INDEXES - 1);
if (I2U(i = U2I(nu)) != nu)
{
unsigned k = I2U(--i);
InsertNode(p, node + k, nu - k - 1);
}
InsertNode(p, node, i);
n = next;
}
}
static void *AllocUnitsRare(CPpmd7 *p, unsigned indx)
{
unsigned i;
void *retVal;
if (p->GlueCount == 0)
{
GlueFreeBlocks(p);
if (p->FreeList[indx] != 0)
return RemoveNode(p, indx);
}
i = indx;
do
{
if (++i == PPMD_NUM_INDEXES)
{
UInt32 numBytes = U2B(I2U(indx));
p->GlueCount--;
return ((UInt32)(p->UnitsStart - p->Text) > numBytes) ? (p->UnitsStart -= numBytes) : (NULL);
}
}
while (p->FreeList[i] == 0);
retVal = RemoveNode(p, i);
SplitBlock(p, retVal, i, indx);
return retVal;
}
static void *AllocUnits(CPpmd7 *p, unsigned indx)
{
UInt32 numBytes;
if (p->FreeList[indx] != 0)
return RemoveNode(p, indx);
numBytes = U2B(I2U(indx));
if (numBytes <= (UInt32)(p->HiUnit - p->LoUnit))
{
void *retVal = p->LoUnit;
p->LoUnit += numBytes;
return retVal;
}
return AllocUnitsRare(p, indx);
}
#define MyMem12Cpy(dest, src, num) \
{ UInt32 *d = (UInt32 *)dest; const UInt32 *s = (const UInt32 *)src; UInt32 n = num; \
do { d[0] = s[0]; d[1] = s[1]; d[2] = s[2]; s += 3; d += 3; } while(--n); }
static void *ShrinkUnits(CPpmd7 *p, void *oldPtr, unsigned oldNU, unsigned newNU)
{
unsigned i0 = U2I(oldNU);
unsigned i1 = U2I(newNU);
if (i0 == i1)
return oldPtr;
if (p->FreeList[i1] != 0)
{
void *ptr = RemoveNode(p, i1);
MyMem12Cpy(ptr, oldPtr, newNU);
InsertNode(p, oldPtr, i0);
return ptr;
}
SplitBlock(p, oldPtr, i0, i1);
return oldPtr;
}
#define SUCCESSOR(p) ((CPpmd_Void_Ref)((p)->SuccessorLow | ((UInt32)(p)->SuccessorHigh << 16)))
static void SetSuccessor(CPpmd_State *p, CPpmd_Void_Ref v)
{
(p)->SuccessorLow = (UInt16)((UInt32)(v) & 0xFFFF);
(p)->SuccessorHigh = (UInt16)(((UInt32)(v) >> 16) & 0xFFFF);
}
static void RestartModel(CPpmd7 *p)
{
unsigned i, k, m;
memset(p->FreeList, 0, sizeof(p->FreeList));
p->Text = p->Base + p->AlignOffset;
p->HiUnit = p->Text + p->Size;
p->LoUnit = p->UnitsStart = p->HiUnit - p->Size / 8 / UNIT_SIZE * 7 * UNIT_SIZE;
p->GlueCount = 0;
p->OrderFall = p->MaxOrder;
p->RunLength = p->InitRL = -(Int32)((p->MaxOrder < 12) ? p->MaxOrder : 12) - 1;
p->PrevSuccess = 0;
p->MinContext = p->MaxContext = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); /* AllocContext(p); */
p->MinContext->Suffix = 0;
p->MinContext->NumStats = 256;
p->MinContext->SummFreq = 256 + 1;
p->FoundState = (CPpmd_State *)p->LoUnit; /* AllocUnits(p, PPMD_NUM_INDEXES - 1); */
p->LoUnit += U2B(256 / 2);
p->MinContext->Stats = REF(p->FoundState);
for (i = 0; i < 256; i++)
{
CPpmd_State *s = &p->FoundState[i];
s->Symbol = (Byte)i;
s->Freq = 1;
SetSuccessor(s, 0);
}
for (i = 0; i < 128; i++)
for (k = 0; k < 8; k++)
{
UInt16 *dest = p->BinSumm[i] + k;
UInt16 val = (UInt16)(PPMD_BIN_SCALE - kInitBinEsc[k] / (i + 2));
for (m = 0; m < 64; m += 8)
dest[m] = val;
}
for (i = 0; i < 25; i++)
for (k = 0; k < 16; k++)
{
CPpmd_See *s = &p->See[i][k];
s->Summ = (UInt16)((5 * i + 10) << (s->Shift = PPMD_PERIOD_BITS - 4));
s->Count = 4;
}
}
void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder)
{
p->MaxOrder = maxOrder;
RestartModel(p);
p->DummySee.Shift = PPMD_PERIOD_BITS;
p->DummySee.Summ = 0; /* unused */
p->DummySee.Count = 64; /* unused */
}
static CTX_PTR CreateSuccessors(CPpmd7 *p, Bool skip)
{
CPpmd_State upState;
CTX_PTR c = p->MinContext;
CPpmd_Byte_Ref upBranch = (CPpmd_Byte_Ref)SUCCESSOR(p->FoundState);
CPpmd_State *ps[PPMD7_MAX_ORDER];
unsigned numPs = 0;
if (!skip)
ps[numPs++] = p->FoundState;
while (c->Suffix)
{
CPpmd_Void_Ref successor;
CPpmd_State *s;
c = SUFFIX(c);
if (c->NumStats != 1)
{
for (s = STATS(c); s->Symbol != p->FoundState->Symbol; s++);
}
else
s = ONE_STATE(c);
successor = SUCCESSOR(s);
if (successor != upBranch)
{
c = CTX(successor);
if (numPs == 0)
return c;
break;
}
ps[numPs++] = s;
}
upState.Symbol = *(const Byte *)Ppmd7_GetPtr(p, upBranch);
SetSuccessor(&upState, upBranch + 1);
if (c->NumStats == 1)
upState.Freq = ONE_STATE(c)->Freq;
else
{
UInt32 cf, s0;
CPpmd_State *s;
for (s = STATS(c); s->Symbol != upState.Symbol; s++);
cf = s->Freq - 1;
s0 = c->SummFreq - c->NumStats - cf;
upState.Freq = (Byte)(1 + ((2 * cf <= s0) ? (5 * cf > s0) : ((2 * cf + 3 * s0 - 1) / (2 * s0))));
}
do
{
/* Create Child */
CTX_PTR c1; /* = AllocContext(p); */
if (p->HiUnit != p->LoUnit)
c1 = (CTX_PTR)(p->HiUnit -= UNIT_SIZE);
else if (p->FreeList[0] != 0)
c1 = (CTX_PTR)RemoveNode(p, 0);
else
{
c1 = (CTX_PTR)AllocUnitsRare(p, 0);
if (!c1)
return NULL;
}
c1->NumStats = 1;
*ONE_STATE(c1) = upState;
c1->Suffix = REF(c);
SetSuccessor(ps[--numPs], REF(c1));
c = c1;
}
while (numPs != 0);
return c;
}
static void SwapStates(CPpmd_State *t1, CPpmd_State *t2)
{
CPpmd_State tmp = *t1;
*t1 = *t2;
*t2 = tmp;
}
static void UpdateModel(CPpmd7 *p)
{
CPpmd_Void_Ref successor, fSuccessor = SUCCESSOR(p->FoundState);
CTX_PTR c;
unsigned s0, ns;
if (p->FoundState->Freq < MAX_FREQ / 4 && p->MinContext->Suffix != 0)
{
c = SUFFIX(p->MinContext);
if (c->NumStats == 1)
{
CPpmd_State *s = ONE_STATE(c);
if (s->Freq < 32)
s->Freq++;
}
else
{
CPpmd_State *s = STATS(c);
if (s->Symbol != p->FoundState->Symbol)
{
do { s++; } while (s->Symbol != p->FoundState->Symbol);
if (s[0].Freq >= s[-1].Freq)
{
SwapStates(&s[0], &s[-1]);
s--;
}
}
if (s->Freq < MAX_FREQ - 9)
{
s->Freq += 2;
c->SummFreq += 2;
}
}
}
if (p->OrderFall == 0)
{
p->MinContext = p->MaxContext = CreateSuccessors(p, True);
if (p->MinContext == 0)
{
RestartModel(p);
return;
}
SetSuccessor(p->FoundState, REF(p->MinContext));
return;
}
*p->Text++ = p->FoundState->Symbol;
successor = REF(p->Text);
if (p->Text >= p->UnitsStart)
{
RestartModel(p);
return;
}
if (fSuccessor)
{
if (fSuccessor <= successor)
{
CTX_PTR cs = CreateSuccessors(p, False);
if (cs == NULL)
{
RestartModel(p);
return;
}
fSuccessor = REF(cs);
}
if (--p->OrderFall == 0)
{
successor = fSuccessor;
p->Text -= (p->MaxContext != p->MinContext);
}
}
else
{
SetSuccessor(p->FoundState, successor);
fSuccessor = REF(p->MinContext);
}
s0 = p->MinContext->SummFreq - (ns = p->MinContext->NumStats) - (p->FoundState->Freq - 1);
for (c = p->MaxContext; c != p->MinContext; c = SUFFIX(c))
{
unsigned ns1;
UInt32 cf, sf;
if ((ns1 = c->NumStats) != 1)
{
if ((ns1 & 1) == 0)
{
/* Expand for one UNIT */
unsigned oldNU = ns1 >> 1;
unsigned i = U2I(oldNU);
if (i != U2I(oldNU + 1))
{
void *ptr = AllocUnits(p, i + 1);
void *oldPtr;
if (!ptr)
{
RestartModel(p);
return;
}
oldPtr = STATS(c);
MyMem12Cpy(ptr, oldPtr, oldNU);
InsertNode(p, oldPtr, i);
c->Stats = STATS_REF(ptr);
}
}
c->SummFreq = (UInt16)(c->SummFreq + (2 * ns1 < ns) + 2 * ((4 * ns1 <= ns) & (c->SummFreq <= 8 * ns1)));
}
else
{
CPpmd_State *s = (CPpmd_State*)AllocUnits(p, 0);
if (!s)
{
RestartModel(p);
return;
}
*s = *ONE_STATE(c);
c->Stats = REF(s);
if (s->Freq < MAX_FREQ / 4 - 1)
s->Freq <<= 1;
else
s->Freq = MAX_FREQ - 4;
c->SummFreq = (UInt16)(s->Freq + p->InitEsc + (ns > 3));
}
cf = 2 * (UInt32)p->FoundState->Freq * (c->SummFreq + 6);
sf = (UInt32)s0 + c->SummFreq;
if (cf < 6 * sf)
{
cf = 1 + (cf > sf) + (cf >= 4 * sf);
c->SummFreq += 3;
}
else
{
cf = 4 + (cf >= 9 * sf) + (cf >= 12 * sf) + (cf >= 15 * sf);
c->SummFreq = (UInt16)(c->SummFreq + cf);
}
{
CPpmd_State *s = STATS(c) + ns1;
SetSuccessor(s, successor);
s->Symbol = p->FoundState->Symbol;
s->Freq = (Byte)cf;
c->NumStats = (UInt16)(ns1 + 1);
}
}
p->MaxContext = p->MinContext = CTX(fSuccessor);
}
static void Rescale(CPpmd7 *p)
{
unsigned i, adder, sumFreq, escFreq;
CPpmd_State *stats = STATS(p->MinContext);
CPpmd_State *s = p->FoundState;
{
CPpmd_State tmp = *s;
for (; s != stats; s--)
s[0] = s[-1];
*s = tmp;
}
escFreq = p->MinContext->SummFreq - s->Freq;
s->Freq += 4;
adder = (p->OrderFall != 0);
s->Freq = (Byte)((s->Freq + adder) >> 1);
sumFreq = s->Freq;
i = p->MinContext->NumStats - 1;
do
{
escFreq -= (++s)->Freq;
s->Freq = (Byte)((s->Freq + adder) >> 1);
sumFreq += s->Freq;
if (s[0].Freq > s[-1].Freq)
{
CPpmd_State *s1 = s;
CPpmd_State tmp = *s1;
do
s1[0] = s1[-1];
while (--s1 != stats && tmp.Freq > s1[-1].Freq);
*s1 = tmp;
}
}
while (--i);
if (s->Freq == 0)
{
unsigned numStats = p->MinContext->NumStats;
unsigned n0, n1;
do { i++; } while ((--s)->Freq == 0);
escFreq += i;
p->MinContext->NumStats = (UInt16)(p->MinContext->NumStats - i);
if (p->MinContext->NumStats == 1)
{
CPpmd_State tmp = *stats;
do
{
tmp.Freq = (Byte)(tmp.Freq - (tmp.Freq >> 1));
escFreq >>= 1;
}
while (escFreq > 1);
InsertNode(p, stats, U2I(((numStats + 1) >> 1)));
*(p->FoundState = ONE_STATE(p->MinContext)) = tmp;
return;
}
n0 = (numStats + 1) >> 1;
n1 = (p->MinContext->NumStats + 1) >> 1;
if (n0 != n1)
p->MinContext->Stats = STATS_REF(ShrinkUnits(p, stats, n0, n1));
}
p->MinContext->SummFreq = (UInt16)(sumFreq + escFreq - (escFreq >> 1));
p->FoundState = STATS(p->MinContext);
}
CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *escFreq)
{
CPpmd_See *see;
unsigned nonMasked = p->MinContext->NumStats - numMasked;
if (p->MinContext->NumStats != 256)
{
see = p->See[p->NS2Indx[nonMasked - 1]] +
(nonMasked < (unsigned)SUFFIX(p->MinContext)->NumStats - p->MinContext->NumStats) +
2 * (p->MinContext->SummFreq < 11 * p->MinContext->NumStats) +
4 * (numMasked > nonMasked) +
p->HiBitsFlag;
{
unsigned r = (see->Summ >> see->Shift);
see->Summ = (UInt16)(see->Summ - r);
*escFreq = r + (r == 0);
}
}
else
{
see = &p->DummySee;
*escFreq = 1;
}
return see;
}
static void NextContext(CPpmd7 *p)
{
CTX_PTR c = CTX(SUCCESSOR(p->FoundState));
if (p->OrderFall == 0 && (Byte *)c > p->Text)
p->MinContext = p->MaxContext = c;
else
UpdateModel(p);
}
void Ppmd7_Update1(CPpmd7 *p)
{
CPpmd_State *s = p->FoundState;
s->Freq += 4;
p->MinContext->SummFreq += 4;
if (s[0].Freq > s[-1].Freq)
{
SwapStates(&s[0], &s[-1]);
p->FoundState = --s;
if (s->Freq > MAX_FREQ)
Rescale(p);
}
NextContext(p);
}
void Ppmd7_Update1_0(CPpmd7 *p)
{
p->PrevSuccess = (2 * p->FoundState->Freq > p->MinContext->SummFreq);
p->RunLength += p->PrevSuccess;
p->MinContext->SummFreq += 4;
if ((p->FoundState->Freq += 4) > MAX_FREQ)
Rescale(p);
NextContext(p);
}
void Ppmd7_UpdateBin(CPpmd7 *p)
{
p->FoundState->Freq = (Byte)(p->FoundState->Freq + (p->FoundState->Freq < 128 ? 1: 0));
p->PrevSuccess = 1;
p->RunLength++;
NextContext(p);
}
void Ppmd7_Update2(CPpmd7 *p)
{
p->MinContext->SummFreq += 4;
if ((p->FoundState->Freq += 4) > MAX_FREQ)
Rescale(p);
p->RunLength = p->InitRL;
UpdateModel(p);
}

140
C/Ppmd7.h Executable file
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/* Ppmd7.h -- PPMdH compression codec
2010-03-12 : Igor Pavlov : Public domain
This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
/* This code supports virtual RangeDecoder and includes the implementation
of RangeCoder from 7z, instead of RangeCoder from original PPMd var.H.
If you need the compatibility with original PPMd var.H, you can use external RangeDecoder */
#ifndef __PPMD7_H
#define __PPMD7_H
#include "Ppmd.h"
EXTERN_C_BEGIN
#define PPMD7_MIN_ORDER 2
#define PPMD7_MAX_ORDER 64
#define PPMD7_MIN_MEM_SIZE (1 << 11)
#define PPMD7_MAX_MEM_SIZE (0xFFFFFFFF - 12 * 3)
struct CPpmd7_Context_;
typedef
#ifdef PPMD_32BIT
struct CPpmd7_Context_ *
#else
UInt32
#endif
CPpmd7_Context_Ref;
typedef struct CPpmd7_Context_
{
UInt16 NumStats;
UInt16 SummFreq;
CPpmd_State_Ref Stats;
CPpmd7_Context_Ref Suffix;
} CPpmd7_Context;
#define Ppmd7Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
typedef struct
{
CPpmd7_Context *MinContext, *MaxContext;
CPpmd_State *FoundState;
unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder, HiBitsFlag;
Int32 RunLength, InitRL; /* must be 32-bit at least */
UInt32 Size;
UInt32 GlueCount;
Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
UInt32 AlignOffset;
Byte Indx2Units[PPMD_NUM_INDEXES];
Byte Units2Indx[128];
CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
Byte NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
CPpmd_See DummySee, See[25][16];
UInt16 BinSumm[128][64];
} CPpmd7;
void Ppmd7_Construct(CPpmd7 *p);
Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc);
void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc);
void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder);
#define Ppmd7_WasAllocated(p) ((p)->Base != NULL)
/* ---------- Internal Functions ---------- */
extern const Byte PPMD7_kExpEscape[16];
#ifdef PPMD_32BIT
#define Ppmd7_GetPtr(p, ptr) (ptr)
#define Ppmd7_GetContext(p, ptr) (ptr)
#define Ppmd7_GetStats(p, ctx) ((ctx)->Stats)
#else
#define Ppmd7_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
#define Ppmd7_GetContext(p, offs) ((CPpmd7_Context *)Ppmd7_GetPtr((p), (offs)))
#define Ppmd7_GetStats(p, ctx) ((CPpmd_State *)Ppmd7_GetPtr((p), ((ctx)->Stats)))
#endif
void Ppmd7_Update1(CPpmd7 *p);
void Ppmd7_Update1_0(CPpmd7 *p);
void Ppmd7_Update2(CPpmd7 *p);
void Ppmd7_UpdateBin(CPpmd7 *p);
#define Ppmd7_GetBinSumm(p) \
&p->BinSumm[Ppmd7Context_OneState(p->MinContext)->Freq - 1][p->PrevSuccess + \
p->NS2BSIndx[Ppmd7_GetContext(p, p->MinContext->Suffix)->NumStats - 1] + \
(p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol]) + \
2 * p->HB2Flag[Ppmd7Context_OneState(p->MinContext)->Symbol] + \
((p->RunLength >> 26) & 0x20)]
CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *scale);
/* ---------- Decode ---------- */
typedef struct
{
UInt32 (*GetThreshold)(void *p, UInt32 total);
void (*Decode)(void *p, UInt32 start, UInt32 size);
UInt32 (*DecodeBit)(void *p, UInt32 size0);
} IPpmd7_RangeDec;
typedef struct
{
IPpmd7_RangeDec p;
UInt32 Range;
UInt32 Code;
IByteIn *Stream;
} CPpmd7z_RangeDec;
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p);
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p);
#define Ppmd7z_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc);
/* ---------- Encode ---------- */
typedef struct
{
UInt64 Low;
UInt32 Range;
Byte Cache;
UInt64 CacheSize;
IByteOut *Stream;
} CPpmd7z_RangeEnc;
void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p);
void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p);
void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol);
EXTERN_C_END
#endif

187
C/Ppmd7Dec.c Executable file
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/* Ppmd7Dec.c -- PPMdH Decoder
2010-03-12 : Igor Pavlov : Public domain
This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
#include "Ppmd7.h"
#define kTopValue (1 << 24)
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p)
{
unsigned i;
p->Code = 0;
p->Range = 0xFFFFFFFF;
if (p->Stream->Read((void *)p->Stream) != 0)
return False;
for (i = 0; i < 4; i++)
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
return (p->Code < 0xFFFFFFFF);
}
static UInt32 Range_GetThreshold(void *pp, UInt32 total)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
return (p->Code) / (p->Range /= total);
}
static void Range_Normalize(CPpmd7z_RangeDec *p)
{
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
p->Range <<= 8;
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
p->Range <<= 8;
}
}
}
static void Range_Decode(void *pp, UInt32 start, UInt32 size)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
p->Code -= start * p->Range;
p->Range *= size;
Range_Normalize(p);
}
static UInt32 Range_DecodeBit(void *pp, UInt32 size0)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
UInt32 newBound = (p->Range >> 14) * size0;
UInt32 symbol;
if (p->Code < newBound)
{
symbol = 0;
p->Range = newBound;
}
else
{
symbol = 1;
p->Code -= newBound;
p->Range -= newBound;
}
Range_Normalize(p);
return symbol;
}
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p)
{
p->p.GetThreshold = Range_GetThreshold;
p->p.Decode = Range_Decode;
p->p.DecodeBit = Range_DecodeBit;
}
#define MASK(sym) ((signed char *)charMask)[sym]
int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc)
{
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 1)
{
CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
unsigned i;
UInt32 count, hiCnt;
if ((count = rc->GetThreshold(rc, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
{
Byte symbol;
rc->Decode(rc, 0, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1_0(p);
return symbol;
}
p->PrevSuccess = 0;
i = p->MinContext->NumStats - 1;
do
{
if ((hiCnt += (++s)->Freq) > count)
{
Byte symbol;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1(p);
return symbol;
}
}
while (--i);
if (count >= p->MinContext->SummFreq)
return -2;
p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
rc->Decode(rc, hiCnt, p->MinContext->SummFreq - hiCnt);
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats - 1;
do { MASK((--s)->Symbol) = 0; } while (--i);
}
else
{
UInt16 *prob = Ppmd7_GetBinSumm(p);
if (rc->DecodeBit(rc, *prob) == 0)
{
Byte symbol;
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
symbol = (p->FoundState = Ppmd7Context_OneState(p->MinContext))->Symbol;
Ppmd7_UpdateBin(p);
return symbol;
}
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(Ppmd7Context_OneState(p->MinContext)->Symbol) = 0;
p->PrevSuccess = 0;
}
for (;;)
{
CPpmd_State *ps[256], *s;
UInt32 freqSum, count, hiCnt;
CPpmd_See *see;
unsigned i, num, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return -1;
p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
hiCnt = 0;
s = Ppmd7_GetStats(p, p->MinContext);
i = 0;
num = p->MinContext->NumStats - numMasked;
do
{
int k = (int)(MASK(s->Symbol));
hiCnt += (s->Freq & k);
ps[i] = s++;
i -= k;
}
while (i != num);
see = Ppmd7_MakeEscFreq(p, numMasked, &freqSum);
freqSum += hiCnt;
count = rc->GetThreshold(rc, freqSum);
if (count < hiCnt)
{
Byte symbol;
CPpmd_State **pps = ps;
for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
s = *pps;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
Ppmd_See_Update(see);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update2(p);
return symbol;
}
if (count >= freqSum)
return -2;
rc->Decode(rc, hiCnt, freqSum - hiCnt);
see->Summ = (UInt16)(see->Summ + freqSum);
do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
}
}

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/* Ppmd7Enc.c -- PPMdH Encoder
2010-03-12 : Igor Pavlov : Public domain
This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
#include "Ppmd7.h"
#define kTopValue (1 << 24)
void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p)
{
p->Low = 0;
p->Range = 0xFFFFFFFF;
p->Cache = 0;
p->CacheSize = 1;
}
static void RangeEnc_ShiftLow(CPpmd7z_RangeEnc *p)
{
if ((UInt32)p->Low < (UInt32)0xFF000000 || (unsigned)(p->Low >> 32) != 0)
{
Byte temp = p->Cache;
do
{
p->Stream->Write(p->Stream, (Byte)(temp + (Byte)(p->Low >> 32)));
temp = 0xFF;
}
while(--p->CacheSize != 0);
p->Cache = (Byte)((UInt32)p->Low >> 24);
}
p->CacheSize++;
p->Low = (UInt32)p->Low << 8;
}
static void RangeEnc_Encode(CPpmd7z_RangeEnc *p, UInt32 start, UInt32 size, UInt32 total)
{
p->Low += start * (p->Range /= total);
p->Range *= size;
while (p->Range < kTopValue)
{
p->Range <<= 8;
RangeEnc_ShiftLow(p);
}
}
static void RangeEnc_EncodeBit_0(CPpmd7z_RangeEnc *p, UInt32 size0)
{
p->Range = (p->Range >> 14) * size0;
while (p->Range < kTopValue)
{
p->Range <<= 8;
RangeEnc_ShiftLow(p);
}
}
static void RangeEnc_EncodeBit_1(CPpmd7z_RangeEnc *p, UInt32 size0)
{
UInt32 newBound = (p->Range >> 14) * size0;
p->Low += newBound;
p->Range -= newBound;
while (p->Range < kTopValue)
{
p->Range <<= 8;
RangeEnc_ShiftLow(p);
}
}
void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p)
{
unsigned i;
for (i = 0; i < 5; i++)
RangeEnc_ShiftLow(p);
}
#define MASK(sym) ((signed char *)charMask)[sym]
void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol)
{
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 1)
{
CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
UInt32 sum;
unsigned i;
if (s->Symbol == symbol)
{
RangeEnc_Encode(rc, 0, s->Freq, p->MinContext->SummFreq);
p->FoundState = s;
Ppmd7_Update1_0(p);
return;
}
p->PrevSuccess = 0;
sum = s->Freq;
i = p->MinContext->NumStats - 1;
do
{
if ((++s)->Symbol == symbol)
{
RangeEnc_Encode(rc, sum, s->Freq, p->MinContext->SummFreq);
p->FoundState = s;
Ppmd7_Update1(p);
return;
}
sum += s->Freq;
}
while (--i);
p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats - 1;
do { MASK((--s)->Symbol) = 0; } while (--i);
RangeEnc_Encode(rc, sum, p->MinContext->SummFreq - sum, p->MinContext->SummFreq);
}
else
{
UInt16 *prob = Ppmd7_GetBinSumm(p);
CPpmd_State *s = Ppmd7Context_OneState(p->MinContext);
if (s->Symbol == symbol)
{
RangeEnc_EncodeBit_0(rc, *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
p->FoundState = s;
Ppmd7_UpdateBin(p);
return;
}
else
{
RangeEnc_EncodeBit_1(rc, *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
p->PrevSuccess = 0;
}
}
for (;;)
{
UInt32 escFreq;
CPpmd_See *see;
CPpmd_State *s;
UInt32 sum;
unsigned i, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return; /* EndMarker (symbol = -1) */
p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
see = Ppmd7_MakeEscFreq(p, numMasked, &escFreq);
s = Ppmd7_GetStats(p, p->MinContext);
sum = 0;
i = p->MinContext->NumStats;
do
{
int cur = s->Symbol;
if (cur == symbol)
{
UInt32 low = sum;
CPpmd_State *s1 = s;
do
{
sum += (s->Freq & (int)(MASK(s->Symbol)));
s++;
}
while (--i);
RangeEnc_Encode(rc, low, s1->Freq, sum + escFreq);
Ppmd_See_Update(see);
p->FoundState = s1;
Ppmd7_Update2(p);
return;
}
sum += (s->Freq & (int)(MASK(cur)));
MASK(cur) = 0;
s++;
}
while (--i);
RangeEnc_Encode(rc, sum, escFreq, sum + escFreq);
see->Summ = (UInt16)(see->Summ + sum + escFreq);
}
}

1120
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133
C/Ppmd8.h Executable file
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/* Ppmd8.h -- PPMdI codec
2010-03-24 : Igor Pavlov : Public domain
This code is based on:
PPMd var.I (2002): Dmitry Shkarin : Public domain
Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
#ifndef __PPMD8_H
#define __PPMD8_H
#include "Ppmd.h"
EXTERN_C_BEGIN
#define PPMD8_MIN_ORDER 2
#define PPMD8_MAX_ORDER 16
struct CPpmd8_Context_;
typedef
#ifdef PPMD_32BIT
struct CPpmd8_Context_ *
#else
UInt32
#endif
CPpmd8_Context_Ref;
typedef struct CPpmd8_Context_
{
Byte NumStats;
Byte Flags;
UInt16 SummFreq;
CPpmd_State_Ref Stats;
CPpmd8_Context_Ref Suffix;
} CPpmd8_Context;
#define Ppmd8Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
/* The BUG in Shkarin's code for FREEZE mode was fixed, but that fixed
code is not compatible with original code for some files compressed
in FREEZE mode. So we disable FREEZE mode support. */
enum
{
PPMD8_RESTORE_METHOD_RESTART,
PPMD8_RESTORE_METHOD_CUT_OFF
#ifdef PPMD8_FREEZE_SUPPORT
, PPMD8_RESTORE_METHOD_FREEZE
#endif
};
typedef struct
{
CPpmd8_Context *MinContext, *MaxContext;
CPpmd_State *FoundState;
unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder;
Int32 RunLength, InitRL; /* must be 32-bit at least */
UInt32 Size;
UInt32 GlueCount;
Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
UInt32 AlignOffset;
unsigned RestoreMethod;
/* Range Coder */
UInt32 Range;
UInt32 Code;
UInt32 Low;
union
{
IByteIn *In;
IByteOut *Out;
} Stream;
Byte Indx2Units[PPMD_NUM_INDEXES];
Byte Units2Indx[128];
CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
UInt32 Stamps[PPMD_NUM_INDEXES];
Byte NS2BSIndx[256], NS2Indx[260];
CPpmd_See DummySee, See[24][32];
UInt16 BinSumm[25][64];
} CPpmd8;
void Ppmd8_Construct(CPpmd8 *p);
Bool Ppmd8_Alloc(CPpmd8 *p, UInt32 size, ISzAlloc *alloc);
void Ppmd8_Free(CPpmd8 *p, ISzAlloc *alloc);
void Ppmd8_Init(CPpmd8 *p, unsigned maxOrder, unsigned restoreMethod);
#define Ppmd8_WasAllocated(p) ((p)->Base != NULL)
/* ---------- Internal Functions ---------- */
extern const Byte PPMD8_kExpEscape[16];
#ifdef PPMD_32BIT
#define Ppmd8_GetPtr(p, ptr) (ptr)
#define Ppmd8_GetContext(p, ptr) (ptr)
#define Ppmd8_GetStats(p, ctx) ((ctx)->Stats)
#else
#define Ppmd8_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
#define Ppmd8_GetContext(p, offs) ((CPpmd8_Context *)Ppmd8_GetPtr((p), (offs)))
#define Ppmd8_GetStats(p, ctx) ((CPpmd_State *)Ppmd8_GetPtr((p), ((ctx)->Stats)))
#endif
void Ppmd8_Update1(CPpmd8 *p);
void Ppmd8_Update1_0(CPpmd8 *p);
void Ppmd8_Update2(CPpmd8 *p);
void Ppmd8_UpdateBin(CPpmd8 *p);
#define Ppmd8_GetBinSumm(p) \
&p->BinSumm[p->NS2Indx[Ppmd8Context_OneState(p->MinContext)->Freq - 1]][ \
p->NS2BSIndx[Ppmd8_GetContext(p, p->MinContext->Suffix)->NumStats] + \
p->PrevSuccess + p->MinContext->Flags + ((p->RunLength >> 26) & 0x20)]
CPpmd_See *Ppmd8_MakeEscFreq(CPpmd8 *p, unsigned numMasked, UInt32 *scale);
/* ---------- Decode ---------- */
Bool Ppmd8_RangeDec_Init(CPpmd8 *p);
#define Ppmd8_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
int Ppmd8_DecodeSymbol(CPpmd8 *p); /* returns: -1 as EndMarker, -2 as DataError */
/* ---------- Encode ---------- */
#define Ppmd8_RangeEnc_Init(p) { (p)->Low = 0; (p)->Range = 0xFFFFFFFF; }
void Ppmd8_RangeEnc_FlushData(CPpmd8 *p);
void Ppmd8_EncodeSymbol(CPpmd8 *p, int symbol); /* symbol = -1 means EndMarker */
EXTERN_C_END
#endif

155
C/Ppmd8Dec.c Executable file
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/* Ppmd8Dec.c -- PPMdI Decoder
2010-03-12 : Igor Pavlov : Public domain
This code is based on:
PPMd var.I (2002): Dmitry Shkarin : Public domain
Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
#include "Ppmd8.h"
#define kTop (1 << 24)
#define kBot (1 << 15)
Bool Ppmd8_RangeDec_Init(CPpmd8 *p)
{
unsigned i;
p->Low = 0;
p->Range = 0xFFFFFFFF;
p->Code = 0;
for (i = 0; i < 4; i++)
p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
return (p->Code < 0xFFFFFFFF);
}
static UInt32 RangeDec_GetThreshold(CPpmd8 *p, UInt32 total)
{
return p->Code / (p->Range /= total);
}
static void RangeDec_Decode(CPpmd8 *p, UInt32 start, UInt32 size)
{
start *= p->Range;
p->Low += start;
p->Code -= start;
p->Range *= size;
while ((p->Low ^ (p->Low + p->Range)) < kTop ||
p->Range < kBot && ((p->Range = (0 - p->Low) & (kBot - 1)), 1))
{
p->Code = (p->Code << 8) | p->Stream.In->Read(p->Stream.In);
p->Range <<= 8;
p->Low <<= 8;
}
}
#define MASK(sym) ((signed char *)charMask)[sym]
int Ppmd8_DecodeSymbol(CPpmd8 *p)
{
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 0)
{
CPpmd_State *s = Ppmd8_GetStats(p, p->MinContext);
unsigned i;
UInt32 count, hiCnt;
if ((count = RangeDec_GetThreshold(p, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
{
Byte symbol;
RangeDec_Decode(p, 0, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd8_Update1_0(p);
return symbol;
}
p->PrevSuccess = 0;
i = p->MinContext->NumStats;
do
{
if ((hiCnt += (++s)->Freq) > count)
{
Byte symbol;
RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd8_Update1(p);
return symbol;
}
}
while (--i);
if (count >= p->MinContext->SummFreq)
return -2;
RangeDec_Decode(p, hiCnt, p->MinContext->SummFreq - hiCnt);
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats;
do { MASK((--s)->Symbol) = 0; } while (--i);
}
else
{
UInt16 *prob = Ppmd8_GetBinSumm(p);
if (((p->Code / (p->Range >>= 14)) < *prob))
{
Byte symbol;
RangeDec_Decode(p, 0, *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
symbol = (p->FoundState = Ppmd8Context_OneState(p->MinContext))->Symbol;
Ppmd8_UpdateBin(p);
return symbol;
}
RangeDec_Decode(p, *prob, (1 << 14) - *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD8_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(Ppmd8Context_OneState(p->MinContext)->Symbol) = 0;
p->PrevSuccess = 0;
}
for (;;)
{
CPpmd_State *ps[256], *s;
UInt32 freqSum, count, hiCnt;
CPpmd_See *see;
unsigned i, num, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return -1;
p->MinContext = Ppmd8_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
hiCnt = 0;
s = Ppmd8_GetStats(p, p->MinContext);
i = 0;
num = p->MinContext->NumStats - numMasked;
do
{
int k = (int)(MASK(s->Symbol));
hiCnt += (s->Freq & k);
ps[i] = s++;
i -= k;
}
while (i != num);
see = Ppmd8_MakeEscFreq(p, numMasked, &freqSum);
freqSum += hiCnt;
count = RangeDec_GetThreshold(p, freqSum);
if (count < hiCnt)
{
Byte symbol;
CPpmd_State **pps = ps;
for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
s = *pps;
RangeDec_Decode(p, hiCnt - s->Freq, s->Freq);
Ppmd_See_Update(see);
p->FoundState = s;
symbol = s->Symbol;
Ppmd8_Update2(p);
return symbol;
}
if (count >= freqSum)
return -2;
RangeDec_Decode(p, hiCnt, freqSum - hiCnt);
see->Summ = (UInt16)(see->Summ + freqSum);
do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
}
}

161
C/Ppmd8Enc.c Executable file
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/* Ppmd8Enc.c -- PPMdI Encoder
2010-03-12 : Igor Pavlov : Public domain
This code is based on:
PPMd var.I (2002): Dmitry Shkarin : Public domain
Carryless rangecoder (1999): Dmitry Subbotin : Public domain */
#include "Ppmd8.h"
#define kTop (1 << 24)
#define kBot (1 << 15)
void Ppmd8_RangeEnc_FlushData(CPpmd8 *p)
{
unsigned i;
for (i = 0; i < 4; i++, p->Low <<= 8 )
p->Stream.Out->Write(p->Stream.Out, (Byte)(p->Low >> 24));
}
static void RangeEnc_Normalize(CPpmd8 *p)
{
while ((p->Low ^ (p->Low + p->Range)) < kTop ||
p->Range < kBot && ((p->Range = (0 - p->Low) & (kBot - 1)), 1))
{
p->Stream.Out->Write(p->Stream.Out, (Byte)(p->Low >> 24));
p->Range <<= 8;
p->Low <<= 8;
}
}
static void RangeEnc_Encode(CPpmd8 *p, UInt32 start, UInt32 size, UInt32 total)
{
p->Low += start * (p->Range /= total);
p->Range *= size;
RangeEnc_Normalize(p);
}
static void RangeEnc_EncodeBit_0(CPpmd8 *p, UInt32 size0)
{
p->Range >>= 14;
p->Range *= size0;
RangeEnc_Normalize(p);
}
static void RangeEnc_EncodeBit_1(CPpmd8 *p, UInt32 size0)
{
p->Low += size0 * (p->Range >>= 14);
p->Range *= ((1 << 14) - size0);
RangeEnc_Normalize(p);
}
#define MASK(sym) ((signed char *)charMask)[sym]
void Ppmd8_EncodeSymbol(CPpmd8 *p, int symbol)
{
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 0)
{
CPpmd_State *s = Ppmd8_GetStats(p, p->MinContext);
UInt32 sum;
unsigned i;
if (s->Symbol == symbol)
{
RangeEnc_Encode(p, 0, s->Freq, p->MinContext->SummFreq);
p->FoundState = s;
Ppmd8_Update1_0(p);
return;
}
p->PrevSuccess = 0;
sum = s->Freq;
i = p->MinContext->NumStats;
do
{
if ((++s)->Symbol == symbol)
{
RangeEnc_Encode(p, sum, s->Freq, p->MinContext->SummFreq);
p->FoundState = s;
Ppmd8_Update1(p);
return;
}
sum += s->Freq;
}
while (--i);
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats;
do { MASK((--s)->Symbol) = 0; } while (--i);
RangeEnc_Encode(p, sum, p->MinContext->SummFreq - sum, p->MinContext->SummFreq);
}
else
{
UInt16 *prob = Ppmd8_GetBinSumm(p);
CPpmd_State *s = Ppmd8Context_OneState(p->MinContext);
if (s->Symbol == symbol)
{
RangeEnc_EncodeBit_0(p, *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
p->FoundState = s;
Ppmd8_UpdateBin(p);
return;
}
else
{
RangeEnc_EncodeBit_1(p, *prob);
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD8_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
p->PrevSuccess = 0;
}
}
for (;;)
{
UInt32 escFreq;
CPpmd_See *see;
CPpmd_State *s;
UInt32 sum;
unsigned i, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return; /* EndMarker (symbol = -1) */
p->MinContext = Ppmd8_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
see = Ppmd8_MakeEscFreq(p, numMasked, &escFreq);
s = Ppmd8_GetStats(p, p->MinContext);
sum = 0;
i = p->MinContext->NumStats + 1;
do
{
int cur = s->Symbol;
if (cur == symbol)
{
UInt32 low = sum;
CPpmd_State *s1 = s;
do
{
sum += (s->Freq & (int)(MASK(s->Symbol)));
s++;
}
while (--i);
RangeEnc_Encode(p, low, s1->Freq, sum + escFreq);
Ppmd_See_Update(see);
p->FoundState = s1;
Ppmd8_Update2(p);
return;
}
sum += (s->Freq & (int)(MASK(cur)));
MASK(cur) = 0;
s++;
}
while (--i);
RangeEnc_Encode(p, sum, escFreq, sum + escFreq);
see->Summ = (UInt16)(see->Summ + sum + escFreq);
}
}

View File

@@ -1,10 +1,8 @@
/* RotateDefs.h -- Rotate functions
2008-08-05
Igor Pavlov
Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __ROTATEDEFS_H
#define __ROTATEDEFS_H
#ifndef __ROTATE_DEFS_H
#define __ROTATE_DEFS_H
#ifdef _MSC_VER

View File

@@ -1,11 +1,15 @@
/* Crypto/Sha256.h -- SHA-256 Hash function
2008-10-04 : Igor Pavlov : Public domain */
/* Sha256.h -- SHA-256 Hash
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __CRYPTO_SHA256_H
#define __CRYPTO_SHA256_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
#define SHA256_DIGEST_SIZE 32
typedef struct
@@ -19,4 +23,8 @@ void Sha256_Init(CSha256 *p);
void Sha256_Update(CSha256 *p, const Byte *data, size_t size);
void Sha256_Final(CSha256 *p, Byte *digest);
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,14 +1,20 @@
/* Sort.h -- Sort functions
2008-03-19
Igor Pavlov
Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __7Z_SORT_H
#define __7Z_SORT_H
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
void HeapSort(UInt32 *p, UInt32 size);
/* void HeapSortRef(UInt32 *p, UInt32 *vals, UInt32 size); */
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,10 +1,11 @@
/* Threads.c -- multithreading library
2008-08-05
Igor Pavlov
Public domain */
2009-09-20 : Igor Pavlov : Public domain */
#ifndef _WIN32_WCE
#include <process.h>
#endif
#include "Threads.h"
#include <process.h>
static WRes GetError()
{
@@ -15,95 +16,69 @@ static WRes GetError()
WRes HandleToWRes(HANDLE h) { return (h != 0) ? 0 : GetError(); }
WRes BOOLToWRes(BOOL v) { return v ? 0 : GetError(); }
static WRes MyCloseHandle(HANDLE *h)
WRes HandlePtr_Close(HANDLE *p)
{
if (*h != NULL)
if (!CloseHandle(*h))
if (*p != NULL)
if (!CloseHandle(*p))
return GetError();
*h = NULL;
*p = NULL;
return 0;
}
WRes Thread_Create(CThread *thread, THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE *startAddress)(void *), LPVOID parameter)
WRes Handle_WaitObject(HANDLE h) { return (WRes)WaitForSingleObject(h, INFINITE); }
WRes Thread_Create(CThread *p, THREAD_FUNC_TYPE func, LPVOID param)
{
unsigned threadId; /* Windows Me/98/95: threadId parameter may not be NULL in _beginthreadex/CreateThread functions */
thread->handle =
/* CreateThread(0, 0, startAddress, parameter, 0, &threadId); */
(HANDLE)_beginthreadex(NULL, 0, startAddress, parameter, 0, &threadId);
*p =
#ifdef UNDER_CE
CreateThread(0, 0, func, param, 0, &threadId);
#else
(HANDLE)_beginthreadex(NULL, 0, func, param, 0, &threadId);
#endif
/* maybe we must use errno here, but probably GetLastError() is also OK. */
return HandleToWRes(thread->handle);
return HandleToWRes(*p);
}
WRes WaitObject(HANDLE h)
WRes Event_Create(CEvent *p, BOOL manualReset, int signaled)
{
return (WRes)WaitForSingleObject(h, INFINITE);
*p = CreateEvent(NULL, manualReset, (signaled ? TRUE : FALSE), NULL);
return HandleToWRes(*p);
}
WRes Thread_Wait(CThread *thread)
WRes Event_Set(CEvent *p) { return BOOLToWRes(SetEvent(*p)); }
WRes Event_Reset(CEvent *p) { return BOOLToWRes(ResetEvent(*p)); }
WRes ManualResetEvent_Create(CManualResetEvent *p, int signaled) { return Event_Create(p, TRUE, signaled); }
WRes AutoResetEvent_Create(CAutoResetEvent *p, int signaled) { return Event_Create(p, FALSE, signaled); }
WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *p) { return ManualResetEvent_Create(p, 0); }
WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *p) { return AutoResetEvent_Create(p, 0); }
WRes Semaphore_Create(CSemaphore *p, UInt32 initCount, UInt32 maxCount)
{
if (thread->handle == NULL)
return 1;
return WaitObject(thread->handle);
*p = CreateSemaphore(NULL, (LONG)initCount, (LONG)maxCount, NULL);
return HandleToWRes(*p);
}
WRes Thread_Close(CThread *thread)
{
return MyCloseHandle(&thread->handle);
}
WRes Event_Create(CEvent *p, BOOL manualReset, int initialSignaled)
{
p->handle = CreateEvent(NULL, manualReset, (initialSignaled ? TRUE : FALSE), NULL);
return HandleToWRes(p->handle);
}
WRes ManualResetEvent_Create(CManualResetEvent *p, int initialSignaled)
{ return Event_Create(p, TRUE, initialSignaled); }
WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *p)
{ return ManualResetEvent_Create(p, 0); }
WRes AutoResetEvent_Create(CAutoResetEvent *p, int initialSignaled)
{ return Event_Create(p, FALSE, initialSignaled); }
WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *p)
{ return AutoResetEvent_Create(p, 0); }
WRes Event_Set(CEvent *p) { return BOOLToWRes(SetEvent(p->handle)); }
WRes Event_Reset(CEvent *p) { return BOOLToWRes(ResetEvent(p->handle)); }
WRes Event_Wait(CEvent *p) { return WaitObject(p->handle); }
WRes Event_Close(CEvent *p) { return MyCloseHandle(&p->handle); }
WRes Semaphore_Create(CSemaphore *p, UInt32 initiallyCount, UInt32 maxCount)
{
p->handle = CreateSemaphore(NULL, (LONG)initiallyCount, (LONG)maxCount, NULL);
return HandleToWRes(p->handle);
}
WRes Semaphore_Release(CSemaphore *p, LONG releaseCount, LONG *previousCount)
{
return BOOLToWRes(ReleaseSemaphore(p->handle, releaseCount, previousCount));
}
WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 releaseCount)
{
return Semaphore_Release(p, (LONG)releaseCount, NULL);
}
WRes Semaphore_Release1(CSemaphore *p)
{
return Semaphore_ReleaseN(p, 1);
}
WRes Semaphore_Wait(CSemaphore *p) { return WaitObject(p->handle); }
WRes Semaphore_Close(CSemaphore *p) { return MyCloseHandle(&p->handle); }
static WRes Semaphore_Release(CSemaphore *p, LONG releaseCount, LONG *previousCount)
{ return BOOLToWRes(ReleaseSemaphore(*p, releaseCount, previousCount)); }
WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 num)
{ return Semaphore_Release(p, (LONG)num, NULL); }
WRes Semaphore_Release1(CSemaphore *p) { return Semaphore_ReleaseN(p, 1); }
WRes CriticalSection_Init(CCriticalSection *p)
{
/* InitializeCriticalSection can raise only STATUS_NO_MEMORY exception */
#ifdef _MSC_VER
__try
#endif
{
InitializeCriticalSection(p);
/* InitializeCriticalSectionAndSpinCount(p, 0); */
}
#ifdef _MSC_VER
__except (EXCEPTION_EXECUTE_HANDLER) { return 1; }
#endif
return 0;
}

View File

@@ -1,68 +1,59 @@
/* Threads.h -- multithreading library
2008-11-22 : Igor Pavlov : Public domain */
2009-03-27 : Igor Pavlov : Public domain */
#ifndef __7Z_THRESDS_H
#define __7Z_THRESDS_H
#ifndef __7Z_THREADS_H
#define __7Z_THREADS_H
#include "Types.h"
typedef struct _CThread
{
HANDLE handle;
} CThread;
#ifdef __cplusplus
extern "C" {
#endif
#define Thread_Construct(thread) (thread)->handle = NULL
#define Thread_WasCreated(thread) ((thread)->handle != NULL)
WRes HandlePtr_Close(HANDLE *h);
WRes Handle_WaitObject(HANDLE h);
typedef HANDLE CThread;
#define Thread_Construct(p) *(p) = NULL
#define Thread_WasCreated(p) (*(p) != NULL)
#define Thread_Close(p) HandlePtr_Close(p)
#define Thread_Wait(p) Handle_WaitObject(*(p))
typedef unsigned THREAD_FUNC_RET_TYPE;
#define THREAD_FUNC_CALL_TYPE MY_STD_CALL
#define THREAD_FUNC_DECL THREAD_FUNC_RET_TYPE THREAD_FUNC_CALL_TYPE
typedef THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE * THREAD_FUNC_TYPE)(void *);
WRes Thread_Create(CThread *p, THREAD_FUNC_TYPE func, LPVOID param);
WRes Thread_Create(CThread *thread, THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE *startAddress)(void *), LPVOID parameter);
WRes Thread_Wait(CThread *thread);
WRes Thread_Close(CThread *thread);
typedef struct _CEvent
{
HANDLE handle;
} CEvent;
typedef HANDLE CEvent;
typedef CEvent CAutoResetEvent;
typedef CEvent CManualResetEvent;
#define Event_Construct(p) *(p) = NULL
#define Event_IsCreated(p) (*(p) != NULL)
#define Event_Close(p) HandlePtr_Close(p)
#define Event_Wait(p) Handle_WaitObject(*(p))
WRes Event_Set(CEvent *p);
WRes Event_Reset(CEvent *p);
WRes ManualResetEvent_Create(CManualResetEvent *p, int signaled);
WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *p);
WRes AutoResetEvent_Create(CAutoResetEvent *p, int signaled);
WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *p);
#define Event_Construct(event) (event)->handle = NULL
#define Event_IsCreated(event) ((event)->handle != NULL)
WRes ManualResetEvent_Create(CManualResetEvent *event, int initialSignaled);
WRes ManualResetEvent_CreateNotSignaled(CManualResetEvent *event);
WRes AutoResetEvent_Create(CAutoResetEvent *event, int initialSignaled);
WRes AutoResetEvent_CreateNotSignaled(CAutoResetEvent *event);
WRes Event_Set(CEvent *event);
WRes Event_Reset(CEvent *event);
WRes Event_Wait(CEvent *event);
WRes Event_Close(CEvent *event);
typedef struct _CSemaphore
{
HANDLE handle;
} CSemaphore;
#define Semaphore_Construct(p) (p)->handle = NULL
WRes Semaphore_Create(CSemaphore *p, UInt32 initiallyCount, UInt32 maxCount);
typedef HANDLE CSemaphore;
#define Semaphore_Construct(p) (*p) = NULL
#define Semaphore_Close(p) HandlePtr_Close(p)
#define Semaphore_Wait(p) Handle_WaitObject(*(p))
WRes Semaphore_Create(CSemaphore *p, UInt32 initCount, UInt32 maxCount);
WRes Semaphore_ReleaseN(CSemaphore *p, UInt32 num);
WRes Semaphore_Release1(CSemaphore *p);
WRes Semaphore_Wait(CSemaphore *p);
WRes Semaphore_Close(CSemaphore *p);
typedef CRITICAL_SECTION CCriticalSection;
WRes CriticalSection_Init(CCriticalSection *p);
#define CriticalSection_Delete(p) DeleteCriticalSection(p)
#define CriticalSection_Enter(p) EnterCriticalSection(p)
#define CriticalSection_Leave(p) LeaveCriticalSection(p)
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -1,5 +1,5 @@
/* Types.h -- Basic types
2008-11-23 : Igor Pavlov : Public domain */
2010-03-11 : Igor Pavlov : Public domain */
#ifndef __7Z_TYPES_H
#define __7Z_TYPES_H
@@ -10,6 +10,18 @@
#include <windows.h>
#endif
#ifndef EXTERN_C_BEGIN
#ifdef __cplusplus
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
#else
#define EXTERN_C_BEGIN
#define EXTERN_C_END
#endif
#endif
EXTERN_C_BEGIN
#define SZ_OK 0
#define SZ_ERROR_DATA 1
@@ -83,6 +95,12 @@ typedef int Bool;
#define False 0
#ifdef _WIN32
#define MY_STD_CALL __stdcall
#else
#define MY_STD_CALL
#endif
#ifdef _MSC_VER
#if _MSC_VER >= 1300
@@ -92,13 +110,11 @@ typedef int Bool;
#endif
#define MY_CDECL __cdecl
#define MY_STD_CALL __stdcall
#define MY_FAST_CALL MY_NO_INLINE __fastcall
#define MY_FAST_CALL __fastcall
#else
#define MY_CDECL
#define MY_STD_CALL
#define MY_FAST_CALL
#endif
@@ -106,6 +122,16 @@ typedef int Bool;
/* The following interfaces use first parameter as pointer to structure */
typedef struct
{
Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */
} IByteIn;
typedef struct
{
void (*Write)(void *p, Byte b);
} IByteOut;
typedef struct
{
SRes (*Read)(void *p, void *buf, size_t *size);
@@ -140,7 +166,7 @@ typedef struct
typedef struct
{
SRes (*Look)(void *p, void **buf, size_t *size);
SRes (*Look)(void *p, const void **buf, size_t *size);
/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
(output(*size) > input(*size)) is not allowed
(output(*size) < input(*size)) is allowed */
@@ -205,4 +231,6 @@ typedef struct
#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
#define IAlloc_Free(p, a) (p)->Free((p), a)
EXTERN_C_END
#endif

View File

@@ -42,7 +42,7 @@ RSC=rc.exe
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
# ADD CPP /nologo /MD /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FAs /YX /FD /c
# ADD CPP /nologo /MD /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "_UNICODE" /D "UNICODE" /FAs /YX /FD /c
# ADD BASE RSC /l 0x419 /d "NDEBUG"
# ADD RSC /l 0x419 /d "NDEBUG"
BSC32=bscmake.exe
@@ -67,7 +67,7 @@ LINK32=link.exe
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
# ADD CPP /nologo /W4 /Gm /GX /ZI /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /D "_SZ_ALLOC_DEBUG2" /D "_SZ_NO_INT_64_A" /YX /FD /GZ /c
# ADD CPP /nologo /W4 /Gm /GX /ZI /Od /D "_DEBUG" /D "_SZ_ALLOC_DEBUG2" /D "_SZ_NO_INT_64_A" /D "WIN32" /D "_CONSOLE" /D "_UNICODE" /D "UNICODE" /YX /FD /GZ /c
# ADD BASE RSC /l 0x419 /d "_DEBUG"
# ADD RSC /l 0x419 /d "_DEBUG"
BSC32=bscmake.exe
@@ -88,6 +88,10 @@ LINK32=link.exe
# PROP Default_Filter ""
# Begin Source File
SOURCE=..\..\7z.h
# End Source File
# Begin Source File
SOURCE=..\..\7zBuf.c
# End Source File
# Begin Source File
@@ -104,6 +108,15 @@ SOURCE=..\..\7zCrc.h
# End Source File
# Begin Source File
SOURCE=..\..\7zCrcOpt.c
# End Source File
# Begin Source File
SOURCE=..\..\7zDec.c
# ADD CPP /D "_7ZIP_PPMD_SUPPPORT"
# End Source File
# Begin Source File
SOURCE=..\..\7zFile.c
# End Source File
# Begin Source File
@@ -112,6 +125,10 @@ SOURCE=..\..\7zFile.h
# End Source File
# Begin Source File
SOURCE=..\..\7zIn.c
# End Source File
# Begin Source File
SOURCE=..\..\7zStream.c
# End Source File
# Begin Source File
@@ -132,6 +149,22 @@ SOURCE=..\..\Bra86.c
# End Source File
# Begin Source File
SOURCE=..\..\CpuArch.c
# End Source File
# Begin Source File
SOURCE=..\..\CpuArch.h
# End Source File
# Begin Source File
SOURCE=..\..\Lzma2Dec.c
# End Source File
# Begin Source File
SOURCE=..\..\Lzma2Dec.h
# End Source File
# Begin Source File
SOURCE=..\..\LzmaDec.c
# End Source File
# Begin Source File
@@ -140,6 +173,24 @@ SOURCE=..\..\LzmaDec.h
# End Source File
# Begin Source File
SOURCE=..\..\Ppmd.h
# End Source File
# Begin Source File
SOURCE=..\..\Ppmd7.c
# SUBTRACT CPP /YX
# End Source File
# Begin Source File
SOURCE=..\..\Ppmd7.h
# End Source File
# Begin Source File
SOURCE=..\..\Ppmd7Dec.c
# SUBTRACT CPP /YX
# End Source File
# Begin Source File
SOURCE=..\..\Types.h
# End Source File
# End Group
@@ -153,46 +204,6 @@ SOURCE=.\7zAlloc.h
# End Source File
# Begin Source File
SOURCE=.\7zDecode.c
# End Source File
# Begin Source File
SOURCE=.\7zDecode.h
# End Source File
# Begin Source File
SOURCE=.\7zExtract.c
# End Source File
# Begin Source File
SOURCE=.\7zExtract.h
# End Source File
# Begin Source File
SOURCE=.\7zHeader.c
# End Source File
# Begin Source File
SOURCE=.\7zHeader.h
# End Source File
# Begin Source File
SOURCE=.\7zIn.c
# End Source File
# Begin Source File
SOURCE=.\7zIn.h
# End Source File
# Begin Source File
SOURCE=.\7zItem.c
# End Source File
# Begin Source File
SOURCE=.\7zItem.h
# End Source File
# Begin Source File
SOURCE=.\7zMain.c
# End Source File
# End Target

View File

View File

@@ -1,15 +1,23 @@
/* 7zAlloc.h -- Allocation functions
2008-10-04 : Igor Pavlov : Public domain */
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __7Z_ALLOC_H
#define __7Z_ALLOC_H
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
void *SzAlloc(void *p, size_t size);
void SzFree(void *p, void *address);
void *SzAllocTemp(void *p, size_t size);
void SzFreeTemp(void *p, void *address);
#ifdef __cplusplus
}
#endif
#endif

495
C/Util/7z/7zMain.c Executable file
View File

@@ -0,0 +1,495 @@
/* 7zMain.c - Test application for 7z Decoder
2010-03-12 : Igor Pavlov : Public domain */
#include <stdio.h>
#include <string.h>
#include "../../7z.h"
#include "../../7zCrc.h"
#include "../../7zFile.h"
#include "../../7zVersion.h"
#include "7zAlloc.h"
#ifndef USE_WINDOWS_FILE
/* for mkdir */
#ifdef _WIN32
#include <direct.h>
#else
#include <sys/stat.h>
#include <errno.h>
#endif
#endif
#ifdef _WIN32
#define CHAR_PATH_SEPARATOR '\\'
#else
#define CHAR_PATH_SEPARATOR '/'
#endif
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
static int Buf_EnsureSize(CBuf *dest, size_t size)
{
if (dest->size >= size)
return 1;
Buf_Free(dest, &g_Alloc);
return Buf_Create(dest, size, &g_Alloc);
}
#ifndef _WIN32
static Byte kUtf8Limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
static Bool Utf16_To_Utf8(Byte *dest, size_t *destLen, const UInt16 *src, size_t srcLen)
{
size_t destPos = 0, srcPos = 0;
for (;;)
{
unsigned numAdds;
UInt32 value;
if (srcPos == srcLen)
{
*destLen = destPos;
return True;
}
value = src[srcPos++];
if (value < 0x80)
{
if (dest)
dest[destPos] = (char)value;
destPos++;
continue;
}
if (value >= 0xD800 && value < 0xE000)
{
UInt32 c2;
if (value >= 0xDC00 || srcPos == srcLen)
break;
c2 = src[srcPos++];
if (c2 < 0xDC00 || c2 >= 0xE000)
break;
value = (((value - 0xD800) << 10) | (c2 - 0xDC00)) + 0x10000;
}
for (numAdds = 1; numAdds < 5; numAdds++)
if (value < (((UInt32)1) << (numAdds * 5 + 6)))
break;
if (dest)
dest[destPos] = (char)(kUtf8Limits[numAdds - 1] + (value >> (6 * numAdds)));
destPos++;
do
{
numAdds--;
if (dest)
dest[destPos] = (char)(0x80 + ((value >> (6 * numAdds)) & 0x3F));
destPos++;
}
while (numAdds != 0);
}
*destLen = destPos;
return False;
}
static SRes Utf16_To_Utf8Buf(CBuf *dest, const UInt16 *src, size_t srcLen)
{
size_t destLen = 0;
Bool res;
Utf16_To_Utf8(NULL, &destLen, src, srcLen);
destLen += 1;
if (!Buf_EnsureSize(dest, destLen))
return SZ_ERROR_MEM;
res = Utf16_To_Utf8(dest->data, &destLen, src, srcLen);
dest->data[destLen] = 0;
return res ? SZ_OK : SZ_ERROR_FAIL;
}
#endif
static WRes Utf16_To_Char(CBuf *buf, const UInt16 *s, int fileMode)
{
int len = 0;
for (len = 0; s[len] != '\0'; len++);
#ifdef _WIN32
{
int size = len * 3 + 100;
if (!Buf_EnsureSize(buf, size))
return SZ_ERROR_MEM;
{
char defaultChar = '_';
BOOL defUsed;
int numChars = WideCharToMultiByte(fileMode ? (AreFileApisANSI() ? CP_ACP : CP_OEMCP) : CP_OEMCP,
0, s, len, (char *)buf->data, size, &defaultChar, &defUsed);
if (numChars == 0 || numChars >= size)
return SZ_ERROR_FAIL;
buf->data[numChars] = 0;
return SZ_OK;
}
}
#else
fileMode = fileMode;
return Utf16_To_Utf8Buf(buf, s, len);
#endif
}
static WRes MyCreateDir(const UInt16 *name)
{
#ifdef USE_WINDOWS_FILE
return CreateDirectoryW(name, NULL) ? 0 : GetLastError();
#else
CBuf buf;
WRes res;
Buf_Init(&buf);
RINOK(Utf16_To_Char(&buf, name, 1));
res =
#ifdef _WIN32
_mkdir((const char *)buf.data)
#else
mkdir((const char *)buf.data, 0777)
#endif
== 0 ? 0 : errno;
Buf_Free(&buf, &g_Alloc);
return res;
#endif
}
static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)
{
#ifdef USE_WINDOWS_FILE
return OutFile_OpenW(p, name);
#else
CBuf buf;
WRes res;
Buf_Init(&buf);
RINOK(Utf16_To_Char(&buf, name, 1));
res = OutFile_Open(p, (const char *)buf.data);
Buf_Free(&buf, &g_Alloc);
return res;
#endif
}
static void PrintString(const UInt16 *s)
{
CBuf buf;
Buf_Init(&buf);
if (Utf16_To_Char(&buf, s, 0) == 0)
{
printf("%s", buf.data);
Buf_Free(&buf, &g_Alloc);
}
}
static void UInt64ToStr(UInt64 value, char *s)
{
char temp[32];
int pos = 0;
do
{
temp[pos++] = (char)('0' + (unsigned)(value % 10));
value /= 10;
}
while (value != 0);
do
*s++ = temp[--pos];
while (pos);
*s = '\0';
}
static char *UIntToStr(char *s, unsigned value, int numDigits)
{
char temp[16];
int pos = 0;
do
temp[pos++] = (char)('0' + (value % 10));
while (value /= 10);
for (numDigits -= pos; numDigits > 0; numDigits--)
*s++ = '0';
do
*s++ = temp[--pos];
while (pos);
*s = '\0';
return s;
}
#define PERIOD_4 (4 * 365 + 1)
#define PERIOD_100 (PERIOD_4 * 25 - 1)
#define PERIOD_400 (PERIOD_100 * 4 + 1)
static void ConvertFileTimeToString(const CNtfsFileTime *ft, char *s)
{
unsigned year, mon, day, hour, min, sec;
UInt64 v64 = (ft->Low | ((UInt64)ft->High << 32)) / 10000000;
Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
unsigned t;
UInt32 v;
sec = (unsigned)(v64 % 60); v64 /= 60;
min = (unsigned)(v64 % 60); v64 /= 60;
hour = (unsigned)(v64 % 24); v64 /= 24;
v = (UInt32)v64;
year = (unsigned)(1601 + v / PERIOD_400 * 400);
v %= PERIOD_400;
t = v / PERIOD_100; if (t == 4) t = 3; year += t * 100; v -= t * PERIOD_100;
t = v / PERIOD_4; if (t == 25) t = 24; year += t * 4; v -= t * PERIOD_4;
t = v / 365; if (t == 4) t = 3; year += t; v -= t * 365;
if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
ms[1] = 29;
for (mon = 1; mon <= 12; mon++)
{
unsigned s = ms[mon - 1];
if (v < s)
break;
v -= s;
}
day = (unsigned)v + 1;
s = UIntToStr(s, year, 4); *s++ = '-';
s = UIntToStr(s, mon, 2); *s++ = '-';
s = UIntToStr(s, day, 2); *s++ = ' ';
s = UIntToStr(s, hour, 2); *s++ = ':';
s = UIntToStr(s, min, 2); *s++ = ':';
s = UIntToStr(s, sec, 2);
}
void PrintError(char *sz)
{
printf("\nERROR: %s\n", sz);
}
#ifdef USE_WINDOWS_FILE
#define kEmptyAttribChar '.'
static void GetAttribString(UInt32 wa, Bool isDir, char *s)
{
s[0] = (char)(((wa & FILE_ATTRIBUTE_DIRECTORY) != 0 || isDir) ? 'D' : kEmptyAttribChar);
s[1] = (char)(((wa & FILE_ATTRIBUTE_READONLY) != 0) ? 'R': kEmptyAttribChar);
s[2] = (char)(((wa & FILE_ATTRIBUTE_HIDDEN) != 0) ? 'H': kEmptyAttribChar);
s[3] = (char)(((wa & FILE_ATTRIBUTE_SYSTEM) != 0) ? 'S': kEmptyAttribChar);
s[4] = (char)(((wa & FILE_ATTRIBUTE_ARCHIVE) != 0) ? 'A': kEmptyAttribChar);
s[5] = '\0';
}
#else
static void GetAttribString(UInt32, Bool, char *s)
{
s[0] = '\0';
}
#endif
int MY_CDECL main(int numargs, char *args[])
{
CFileInStream archiveStream;
CLookToRead lookStream;
CSzArEx db;
SRes res;
ISzAlloc allocImp;
ISzAlloc allocTempImp;
UInt16 *temp = NULL;
size_t tempSize = 0;
printf("\n7z ANSI-C Decoder " MY_VERSION_COPYRIGHT_DATE "\n\n");
if (numargs == 1)
{
printf(
"Usage: 7zDec <command> <archive_name>\n\n"
"<Commands>\n"
" e: Extract files from archive (without using directory names)\n"
" l: List contents of archive\n"
" t: Test integrity of archive\n"
" x: eXtract files with full paths\n");
return 0;
}
if (numargs < 3)
{
PrintError("incorrect command");
return 1;
}
allocImp.Alloc = SzAlloc;
allocImp.Free = SzFree;
allocTempImp.Alloc = SzAllocTemp;
allocTempImp.Free = SzFreeTemp;
if (InFile_Open(&archiveStream.file, args[2]))
{
PrintError("can not open input file");
return 1;
}
FileInStream_CreateVTable(&archiveStream);
LookToRead_CreateVTable(&lookStream, False);
lookStream.realStream = &archiveStream.s;
LookToRead_Init(&lookStream);
CrcGenerateTable();
SzArEx_Init(&db);
res = SzArEx_Open(&db, &lookStream.s, &allocImp, &allocTempImp);
if (res == SZ_OK)
{
char *command = args[1];
int listCommand = 0, testCommand = 0, extractCommand = 0, fullPaths = 0;
if (strcmp(command, "l") == 0) listCommand = 1;
else if (strcmp(command, "t") == 0) testCommand = 1;
else if (strcmp(command, "e") == 0) extractCommand = 1;
else if (strcmp(command, "x") == 0) { extractCommand = 1; fullPaths = 1; }
else
{
PrintError("incorrect command");
res = SZ_ERROR_FAIL;
}
if (res == SZ_OK)
{
UInt32 i;
/*
if you need cache, use these 3 variables.
if you use external function, you can make these variable as static.
*/
UInt32 blockIndex = 0xFFFFFFFF; /* it can have any value before first call (if outBuffer = 0) */
Byte *outBuffer = 0; /* it must be 0 before first call for each new archive. */
size_t outBufferSize = 0; /* it can have any value before first call (if outBuffer = 0) */
for (i = 0; i < db.db.NumFiles; i++)
{
size_t offset = 0;
size_t outSizeProcessed = 0;
const CSzFileItem *f = db.db.Files + i;
size_t len;
if (listCommand == 0 && f->IsDir && !fullPaths)
continue;
len = SzArEx_GetFileNameUtf16(&db, i, NULL);
if (len > tempSize)
{
SzFree(NULL, temp);
tempSize = len;
temp = (UInt16 *)SzAlloc(NULL, tempSize * sizeof(temp[0]));
if (temp == 0)
{
res = SZ_ERROR_MEM;
break;
}
}
SzArEx_GetFileNameUtf16(&db, i, temp);
if (listCommand)
{
char attr[8], s[32], t[32];
GetAttribString(f->AttribDefined ? f->Attrib : 0, f->IsDir, attr);
UInt64ToStr(f->Size, s);
if (f->MTimeDefined)
ConvertFileTimeToString(&f->MTime, t);
else
{
size_t j;
for (j = 0; j < 19; j++)
t[j] = ' ';
t[j] = '\0';
}
printf("%s %s %10s ", t, attr, s);
PrintString(temp);
if (f->IsDir)
printf("/");
printf("\n");
continue;
}
printf(testCommand ?
"Testing ":
"Extracting ");
PrintString(temp);
if (f->IsDir)
printf("/");
else
{
res = SzArEx_Extract(&db, &lookStream.s, i,
&blockIndex, &outBuffer, &outBufferSize,
&offset, &outSizeProcessed,
&allocImp, &allocTempImp);
if (res != SZ_OK)
break;
}
if (!testCommand)
{
CSzFile outFile;
size_t processedSize;
size_t j;
UInt16 *name = (UInt16 *)temp;
const UInt16 *destPath = (const UInt16 *)name;
for (j = 0; name[j] != 0; j++)
if (name[j] == '/')
{
if (fullPaths)
{
name[j] = 0;
MyCreateDir(name);
name[j] = CHAR_PATH_SEPARATOR;
}
else
destPath = name + j + 1;
}
if (f->IsDir)
{
MyCreateDir(destPath);
printf("\n");
continue;
}
else if (OutFile_OpenUtf16(&outFile, destPath))
{
PrintError("can not open output file");
res = SZ_ERROR_FAIL;
break;
}
processedSize = outSizeProcessed;
if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 || processedSize != outSizeProcessed)
{
PrintError("can not write output file");
res = SZ_ERROR_FAIL;
break;
}
if (File_Close(&outFile))
{
PrintError("can not close output file");
res = SZ_ERROR_FAIL;
break;
}
#ifdef USE_WINDOWS_FILE
if (f->AttribDefined)
SetFileAttributesW(destPath, f->Attrib);
#endif
}
printf("\n");
}
IAlloc_Free(&allocImp, outBuffer);
}
}
SzArEx_Free(&db, &allocImp);
SzFree(NULL, temp);
File_Close(&archiveStream.file);
if (res == SZ_OK)
{
printf("\nEverything is Ok\n");
return 0;
}
if (res == SZ_ERROR_UNSUPPORTED)
PrintError("decoder doesn't support this archive");
else if (res == SZ_ERROR_MEM)
PrintError("can not allocate memory");
else if (res == SZ_ERROR_CRC)
PrintError("CRC error");
else
printf("\nERROR #%d\n", res);
return 1;
}

View File

@@ -1,4 +1,5 @@
MY_STATIC_LINK=1
CFLAGS = $(CFLAGS) -D_7ZIP_PPMD_SUPPPORT
PROG = 7zDec.exe
@@ -6,19 +7,21 @@ C_OBJS = \
$O\7zBuf.obj \
$O\7zBuf2.obj \
$O\7zCrc.obj \
$O\LzmaDec.obj \
$O\Bra86.obj \
$O\Bcj2.obj \
$O\7zCrcOpt.obj \
$O\7zFile.obj \
$O\7zDec.obj \
$O\7zIn.obj \
$O\7zStream.obj \
$O\Bcj2.obj \
$O\Bra86.obj \
$O\CpuArch.obj \
$O\Lzma2Dec.obj \
$O\LzmaDec.obj \
$O\Ppmd7.obj \
$O\Ppmd7Dec.obj \
7Z_OBJS = \
$O\7zAlloc.obj \
$O\7zDecode.obj \
$O\7zExtract.obj \
$O\7zHeader.obj \
$O\7zIn.obj \
$O\7zItem.obj \
$O\7zMain.obj \
OBJS = \

View File

@@ -4,13 +4,16 @@ LIB =
RM = rm -f
CFLAGS = -c -O2 -Wall
OBJS = 7zAlloc.o 7zBuf.o 7zBuf2.o 7zCrc.o 7zDecode.o 7zExtract.o 7zHeader.o 7zIn.o 7zItem.o 7zMain.o LzmaDec.o Bra86.o Bcj2.o 7zFile.o 7zStream.o
OBJS = 7zMain.o 7zAlloc.o 7zBuf.o 7zBuf2.o 7zCrc.o 7zCrcOpt.o 7zDec.o 7zIn.o CpuArch.o LzmaDec.o Lzma2Dec.o Bra86.o Bcj2.o Ppmd7.o Ppmd7Dec.o 7zFile.o 7zStream.o
all: $(PROG)
$(PROG): $(OBJS)
$(CXX) -o $(PROG) $(LDFLAGS) $(OBJS) $(LIB)
7zMain.o: 7zMain.c
$(CXX) $(CFLAGS) 7zMain.c
7zAlloc.o: 7zAlloc.c
$(CXX) $(CFLAGS) 7zAlloc.c
@@ -23,33 +26,36 @@ $(PROG): $(OBJS)
7zCrc.o: ../../7zCrc.c
$(CXX) $(CFLAGS) ../../7zCrc.c
7zDecode.o: 7zDecode.c
$(CXX) $(CFLAGS) 7zDecode.c
7zCrcOpt.o: ../../7zCrc.c
$(CXX) $(CFLAGS) ../../7zCrcOpt.c
7zExtract.o: 7zExtract.c
$(CXX) $(CFLAGS) 7zExtract.c
7zDec.o: ../../7zDec.c
$(CXX) $(CFLAGS) -D_7ZIP_PPMD_SUPPPORT ../../7zDec.c
7zHeader.o: 7zHeader.c
$(CXX) $(CFLAGS) 7zHeader.c
7zIn.o: ../../7zIn.c
$(CXX) $(CFLAGS) ../../7zIn.c
7zIn.o: 7zIn.c
$(CXX) $(CFLAGS) 7zIn.c
7zItem.o: 7zItem.c
$(CXX) $(CFLAGS) 7zItem.c
7zMain.o: 7zMain.c
$(CXX) $(CFLAGS) 7zMain.c
CpuArch.o: ../../CpuArch.c
$(CXX) $(CFLAGS) ../../CpuArch.c
LzmaDec.o: ../../LzmaDec.c
$(CXX) $(CFLAGS) ../../LzmaDec.c
Lzma2Dec.o: ../../Lzma2Dec.c
$(CXX) $(CFLAGS) ../../Lzma2Dec.c
Bra86.o: ../../Bra86.c
$(CXX) $(CFLAGS) ../../Bra86.c
Bcj2.o: ../../Bcj2.c
$(CXX) $(CFLAGS) ../../Bcj2.c
Ppmd7.o: ../../Ppmd7.c
$(CXX) $(CFLAGS) ../../Ppmd7.c
Ppmd7Dec.o: ../../Ppmd7Dec.c
$(CXX) $(CFLAGS) ../../Ppmd7Dec.c
7zFile.o: ../../7zFile.c
$(CXX) $(CFLAGS) ../../7zFile.c

View File

@@ -1,5 +1,5 @@
/* LzmaUtil.c -- Test application for LZMA compression
2008-11-23 : Igor Pavlov : Public domain */
2009-08-14 : Igor Pavlov : Public domain */
#define _CRT_SECURE_NO_WARNINGS
@@ -7,11 +7,11 @@
#include <stdlib.h>
#include <string.h>
#include "../Alloc.h"
#include "../7zFile.h"
#include "../7zVersion.h"
#include "../LzmaDec.h"
#include "../LzmaEnc.h"
#include "../../Alloc.h"
#include "../../7zFile.h"
#include "../../7zVersion.h"
#include "../../LzmaDec.h"
#include "../../LzmaEnc.h"
const char *kCantReadMessage = "Can not read input file";
const char *kCantWriteMessage = "Can not write output file";

View File

@@ -51,7 +51,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 /out:"c:\util\lzmac.exe"
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 /out:"c:\util\7lzma.exe"
!ELSEIF "$(CFG)" == "LzmaUtil - Win32 Debug"
@@ -76,7 +76,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /out:"c:\util\lzmac.exe" /pdbtype:sept
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /out:"c:\util\7lzma.exe" /pdbtype:sept
!ENDIF
@@ -86,67 +86,67 @@ LINK32=link.exe
# Name "LzmaUtil - Win32 Debug"
# Begin Source File
SOURCE=..\7zFile.c
SOURCE=..\..\7zFile.c
# End Source File
# Begin Source File
SOURCE=..\7zFile.h
SOURCE=..\..\7zFile.h
# End Source File
# Begin Source File
SOURCE=..\7zStream.c
SOURCE=..\..\7zStream.c
# End Source File
# Begin Source File
SOURCE=..\7zVersion.h
SOURCE=..\..\7zVersion.h
# End Source File
# Begin Source File
SOURCE=..\Alloc.c
SOURCE=..\..\Alloc.c
# End Source File
# Begin Source File
SOURCE=..\Alloc.h
SOURCE=..\..\Alloc.h
# End Source File
# Begin Source File
SOURCE=..\CpuArch.h
SOURCE=..\..\CpuArch.h
# End Source File
# Begin Source File
SOURCE=..\LzFind.c
SOURCE=..\..\LzFind.c
# End Source File
# Begin Source File
SOURCE=..\LzFind.h
SOURCE=..\..\LzFind.h
# End Source File
# Begin Source File
SOURCE=..\LzFindMt.c
SOURCE=..\..\LzFindMt.c
# End Source File
# Begin Source File
SOURCE=..\LzFindMt.h
SOURCE=..\..\LzFindMt.h
# End Source File
# Begin Source File
SOURCE=..\LzHash.h
SOURCE=..\..\LzHash.h
# End Source File
# Begin Source File
SOURCE=..\LzmaDec.c
SOURCE=..\..\LzmaDec.c
# End Source File
# Begin Source File
SOURCE=..\LzmaDec.h
SOURCE=..\..\LzmaDec.h
# End Source File
# Begin Source File
SOURCE=..\LzmaEnc.c
SOURCE=..\..\LzmaEnc.c
# End Source File
# Begin Source File
SOURCE=..\LzmaEnc.h
SOURCE=..\..\LzmaEnc.h
# End Source File
# Begin Source File
@@ -154,15 +154,15 @@ SOURCE=.\LzmaUtil.c
# End Source File
# Begin Source File
SOURCE=..\Threads.c
SOURCE=..\..\Threads.c
# End Source File
# Begin Source File
SOURCE=..\Threads.h
SOURCE=..\..\Threads.h
# End Source File
# Begin Source File
SOURCE=..\Types.h
SOURCE=..\..\Types.h
# End Source File
# End Target
# End Project

View File

@@ -2,7 +2,6 @@ MY_STATIC_LINK=1
PROG = LZMAc.exe
CFLAGS = $(CFLAGS) \
-DCOMPRESS_MF_MT \
LIB_OBJS = \
$O\LzmaUtil.obj \
@@ -21,9 +20,9 @@ OBJS = \
$(LIB_OBJS) \
$(C_OBJS) \
!include "../../CPP/Build.mak"
!include "../../../CPP/Build.mak"
$(LIB_OBJS): $(*B).c
$(COMPL_O2)
$(C_OBJS): ../$(*B).c
$(C_OBJS): ../../$(*B).c
$(COMPL_O2)

44
C/Util/Lzma/makefile.gcc Executable file
View File

@@ -0,0 +1,44 @@
PROG = lzma
CXX = g++
LIB =
RM = rm -f
CFLAGS = -c -O2 -Wall -D_7ZIP_ST
OBJS = \
LzmaUtil.o \
Alloc.o \
LzFind.o \
LzmaDec.o \
LzmaEnc.o \
7zFile.o \
7zStream.o \
all: $(PROG)
$(PROG): $(OBJS)
$(CXX) -o $(PROG) $(LDFLAGS) $(OBJS) $(LIB) $(LIB2)
LzmaUtil.o: LzmaUtil.c
$(CXX) $(CFLAGS) LzmaUtil.c
Alloc.o: ../../Alloc.c
$(CXX) $(CFLAGS) ../../Alloc.c
LzFind.o: ../../LzFind.c
$(CXX) $(CFLAGS) ../../LzFind.c
LzmaDec.o: ../../LzmaDec.c
$(CXX) $(CFLAGS) ../../LzmaDec.c
LzmaEnc.o: ../../LzmaEnc.c
$(CXX) $(CFLAGS) ../../LzmaEnc.c
7zFile.o: ../../7zFile.c
$(CXX) $(CFLAGS) ../../7zFile.c
7zStream.o: ../../7zStream.c
$(CXX) $(CFLAGS) ../../7zStream.c
clean:
-$(RM) $(PROG) $(OBJS)

View File

@@ -43,7 +43,7 @@ RSC=rc.exe
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "LZMALIB_EXPORTS" /YX /FD /c
# ADD CPP /nologo /Gr /MT /W3 /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "LZMALIB_EXPORTS" /D "COMPRESS_MF_MT" /FD /c
# ADD CPP /nologo /Gr /MT /W3 /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "LZMALIB_EXPORTS" /FD /c
# SUBTRACT CPP /YX
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
@@ -104,59 +104,59 @@ SOURCE=.\LzmaLibExports.c
# End Group
# Begin Source File
SOURCE=..\Alloc.c
SOURCE=..\..\Alloc.c
# End Source File
# Begin Source File
SOURCE=..\Alloc.h
SOURCE=..\..\Alloc.h
# End Source File
# Begin Source File
SOURCE=..\IStream.h
SOURCE=..\..\IStream.h
# End Source File
# Begin Source File
SOURCE=..\LzFind.c
SOURCE=..\..\LzFind.c
# End Source File
# Begin Source File
SOURCE=..\LzFind.h
SOURCE=..\..\LzFind.h
# End Source File
# Begin Source File
SOURCE=..\LzFindMt.c
SOURCE=..\..\LzFindMt.c
# End Source File
# Begin Source File
SOURCE=..\LzFindMt.h
SOURCE=..\..\LzFindMt.h
# End Source File
# Begin Source File
SOURCE=..\LzHash.h
SOURCE=..\..\LzHash.h
# End Source File
# Begin Source File
SOURCE=..\LzmaDec.c
SOURCE=..\..\LzmaDec.c
# End Source File
# Begin Source File
SOURCE=..\LzmaDec.h
SOURCE=..\..\LzmaDec.h
# End Source File
# Begin Source File
SOURCE=..\LzmaEnc.c
SOURCE=..\..\LzmaEnc.c
# End Source File
# Begin Source File
SOURCE=..\LzmaEnc.h
SOURCE=..\..\LzmaEnc.h
# End Source File
# Begin Source File
SOURCE=..\LzmaLib.c
SOURCE=..\..\LzmaLib.c
# End Source File
# Begin Source File
SOURCE=..\LzmaLib.h
SOURCE=..\..\LzmaLib.h
# End Source File
# Begin Source File
@@ -164,15 +164,15 @@ SOURCE=.\resource.rc
# End Source File
# Begin Source File
SOURCE=..\Threads.c
SOURCE=..\..\Threads.c
# End Source File
# Begin Source File
SOURCE=..\Threads.h
SOURCE=..\..\Threads.h
# End Source File
# Begin Source File
SOURCE=..\Types.h
SOURCE=..\..\Types.h
# End Source File
# End Target
# End Project

View File

@@ -5,9 +5,6 @@ SLIBPATH = $O\$(SLIB)
DEF_FILE = LzmaLib.def
CFLAGS = $(CFLAGS) \
-DCOMPRESS_MF_MT \
LIBS = $(LIBS) oleaut32.lib
LIB_OBJS = \
$O\LzmaLibExports.obj \
@@ -26,12 +23,12 @@ OBJS = \
$(C_OBJS) \
$O\resource.res
!include "../../CPP/Build.mak"
!include "../../../CPP/Build.mak"
$(SLIBPATH): $O $(OBJS)
lib -out:$(SLIBPATH) $(OBJS) $(LIBS)
$(LIB_OBJS): $(*B).c
$(COMPL_O2)
$(C_OBJS): ../$(*B).c
$(C_OBJS): ../../$(*B).c
$(COMPL_O2)

View File

@@ -1,4 +1,4 @@
#include "../../CPP/7zip/MyVersionInfo.rc"
#include "../../../CPP/7zip/MyVersionInfo.rc"
MY_VERSION_INFO_DLL("LZMA library", "LZMA")

88
C/Xz.c Executable file
View File

@@ -0,0 +1,88 @@
/* Xz.c - Xz
2009-04-15 : Igor Pavlov : Public domain */
#include "7zCrc.h"
#include "CpuArch.h"
#include "Xz.h"
#include "XzCrc64.h"
Byte XZ_SIG[XZ_SIG_SIZE] = { 0xFD, '7', 'z', 'X', 'Z', 0 };
Byte XZ_FOOTER_SIG[XZ_FOOTER_SIG_SIZE] = { 'Y', 'Z' };
unsigned Xz_WriteVarInt(Byte *buf, UInt64 v)
{
unsigned i = 0;
do
{
buf[i++] = (Byte)((v & 0x7F) | 0x80);
v >>= 7;
}
while (v != 0);
buf[i - 1] &= 0x7F;
return i;
}
void Xz_Construct(CXzStream *p)
{
p->numBlocks = p->numBlocksAllocated = 0;
p->blocks = 0;
p->flags = 0;
}
void Xz_Free(CXzStream *p, ISzAlloc *alloc)
{
alloc->Free(alloc, p->blocks);
p->numBlocks = p->numBlocksAllocated = 0;
p->blocks = 0;
}
unsigned XzFlags_GetCheckSize(CXzStreamFlags f)
{
int t = XzFlags_GetCheckType(f);
return (t == 0) ? 0 : (4 << ((t - 1) / 3));
}
void XzCheck_Init(CXzCheck *p, int mode)
{
p->mode = mode;
switch (mode)
{
case XZ_CHECK_CRC32: p->crc = CRC_INIT_VAL; break;
case XZ_CHECK_CRC64: p->crc64 = CRC64_INIT_VAL; break;
case XZ_CHECK_SHA256: Sha256_Init(&p->sha); break;
}
}
void XzCheck_Update(CXzCheck *p, const void *data, size_t size)
{
switch (p->mode)
{
case XZ_CHECK_CRC32: p->crc = CrcUpdate(p->crc, data, size); break;
case XZ_CHECK_CRC64: p->crc64 = Crc64Update(p->crc64, data, size); break;
case XZ_CHECK_SHA256: Sha256_Update(&p->sha, (const Byte *)data, size); break;
}
}
int XzCheck_Final(CXzCheck *p, Byte *digest)
{
switch (p->mode)
{
case XZ_CHECK_CRC32:
SetUi32(digest, CRC_GET_DIGEST(p->crc));
break;
case XZ_CHECK_CRC64:
{
int i;
UInt64 v = CRC64_GET_DIGEST(p->crc64);
for (i = 0; i < 8; i++, v >>= 8)
digest[i] = (Byte)(v & 0xFF);
break;
}
case XZ_CHECK_SHA256:
Sha256_Final(&p->sha, digest);
break;
default:
return 0;
}
return 1;
}

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/* Xz.h - Xz interface
2009-04-15 : Igor Pavlov : Public domain */
#ifndef __XZ_H
#define __XZ_H
#include "Sha256.h"
#ifdef __cplusplus
extern "C" {
#endif
#define XZ_ID_Subblock 1
#define XZ_ID_Delta 3
#define XZ_ID_X86 4
#define XZ_ID_PPC 5
#define XZ_ID_IA64 6
#define XZ_ID_ARM 7
#define XZ_ID_ARMT 8
#define XZ_ID_SPARC 9
#define XZ_ID_LZMA2 0x21
unsigned Xz_ReadVarInt(const Byte *p, size_t maxSize, UInt64 *value);
unsigned Xz_WriteVarInt(Byte *buf, UInt64 v);
/* ---------- xz block ---------- */
#define XZ_BLOCK_HEADER_SIZE_MAX 1024
#define XZ_NUM_FILTERS_MAX 4
#define XZ_BF_NUM_FILTERS_MASK 3
#define XZ_BF_PACK_SIZE (1 << 6)
#define XZ_BF_UNPACK_SIZE (1 << 7)
#define XZ_FILTER_PROPS_SIZE_MAX 20
typedef struct
{
UInt64 id;
UInt32 propsSize;
Byte props[XZ_FILTER_PROPS_SIZE_MAX];
} CXzFilter;
typedef struct
{
UInt64 packSize;
UInt64 unpackSize;
Byte flags;
CXzFilter filters[XZ_NUM_FILTERS_MAX];
} CXzBlock;
#define XzBlock_GetNumFilters(p) (((p)->flags & XZ_BF_NUM_FILTERS_MASK) + 1)
#define XzBlock_HasPackSize(p) (((p)->flags & XZ_BF_PACK_SIZE) != 0)
#define XzBlock_HasUnpackSize(p) (((p)->flags & XZ_BF_UNPACK_SIZE) != 0)
SRes XzBlock_Parse(CXzBlock *p, const Byte *header);
SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, Bool *isIndex, UInt32 *headerSizeRes);
/* ---------- xz stream ---------- */
#define XZ_SIG_SIZE 6
#define XZ_FOOTER_SIG_SIZE 2
extern Byte XZ_SIG[XZ_SIG_SIZE];
extern Byte XZ_FOOTER_SIG[XZ_FOOTER_SIG_SIZE];
#define XZ_STREAM_FLAGS_SIZE 2
#define XZ_STREAM_CRC_SIZE 4
#define XZ_STREAM_HEADER_SIZE (XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE + XZ_STREAM_CRC_SIZE)
#define XZ_STREAM_FOOTER_SIZE (XZ_FOOTER_SIG_SIZE + XZ_STREAM_FLAGS_SIZE + XZ_STREAM_CRC_SIZE + 4)
#define XZ_CHECK_MASK 0xF
#define XZ_CHECK_NO 0
#define XZ_CHECK_CRC32 1
#define XZ_CHECK_CRC64 4
#define XZ_CHECK_SHA256 10
typedef struct
{
int mode;
UInt32 crc;
UInt64 crc64;
CSha256 sha;
} CXzCheck;
void XzCheck_Init(CXzCheck *p, int mode);
void XzCheck_Update(CXzCheck *p, const void *data, size_t size);
int XzCheck_Final(CXzCheck *p, Byte *digest);
typedef UInt16 CXzStreamFlags;
#define XzFlags_IsSupported(f) ((f) <= XZ_CHECK_MASK)
#define XzFlags_GetCheckType(f) ((f) & XZ_CHECK_MASK)
#define XzFlags_HasDataCrc32(f) (Xz_GetCheckType(f) == XZ_CHECK_CRC32)
unsigned XzFlags_GetCheckSize(CXzStreamFlags f);
SRes Xz_ParseHeader(CXzStreamFlags *p, const Byte *buf);
SRes Xz_ReadHeader(CXzStreamFlags *p, ISeqInStream *inStream);
typedef struct
{
UInt64 unpackSize;
UInt64 totalSize;
} CXzBlockSizes;
typedef struct
{
CXzStreamFlags flags;
size_t numBlocks;
size_t numBlocksAllocated;
CXzBlockSizes *blocks;
UInt64 startOffset;
} CXzStream;
void Xz_Construct(CXzStream *p);
void Xz_Free(CXzStream *p, ISzAlloc *alloc);
#define XZ_SIZE_OVERFLOW ((UInt64)(Int64)-1)
UInt64 Xz_GetUnpackSize(const CXzStream *p);
UInt64 Xz_GetPackSize(const CXzStream *p);
typedef struct
{
size_t num;
size_t numAllocated;
CXzStream *streams;
} CXzs;
void Xzs_Construct(CXzs *p);
void Xzs_Free(CXzs *p, ISzAlloc *alloc);
SRes Xzs_ReadBackward(CXzs *p, ILookInStream *inStream, Int64 *startOffset, ICompressProgress *progress, ISzAlloc *alloc);
UInt64 Xzs_GetNumBlocks(const CXzs *p);
UInt64 Xzs_GetUnpackSize(const CXzs *p);
typedef enum
{
CODER_STATUS_NOT_SPECIFIED, /* use main error code instead */
CODER_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */
CODER_STATUS_NOT_FINISHED, /* stream was not finished */
CODER_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */
} ECoderStatus;
typedef enum
{
CODER_FINISH_ANY, /* finish at any point */
CODER_FINISH_END /* block must be finished at the end */
} ECoderFinishMode;
typedef struct _IStateCoder
{
void *p;
void (*Free)(void *p, ISzAlloc *alloc);
SRes (*SetProps)(void *p, const Byte *props, size_t propSize, ISzAlloc *alloc);
void (*Init)(void *p);
SRes (*Code)(void *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
int srcWasFinished, ECoderFinishMode finishMode, int *wasFinished);
} IStateCoder;
#define MIXCODER_NUM_FILTERS_MAX 4
typedef struct
{
ISzAlloc *alloc;
Byte *buf;
int numCoders;
int finished[MIXCODER_NUM_FILTERS_MAX - 1];
size_t pos[MIXCODER_NUM_FILTERS_MAX - 1];
size_t size[MIXCODER_NUM_FILTERS_MAX - 1];
UInt64 ids[MIXCODER_NUM_FILTERS_MAX];
IStateCoder coders[MIXCODER_NUM_FILTERS_MAX];
} CMixCoder;
void MixCoder_Construct(CMixCoder *p, ISzAlloc *alloc);
void MixCoder_Free(CMixCoder *p);
void MixCoder_Init(CMixCoder *p);
SRes MixCoder_SetFromMethod(CMixCoder *p, int coderIndex, UInt64 methodId);
SRes MixCoder_Code(CMixCoder *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, int srcWasFinished,
ECoderFinishMode finishMode, ECoderStatus *status);
typedef enum
{
XZ_STATE_STREAM_HEADER,
XZ_STATE_STREAM_INDEX,
XZ_STATE_STREAM_INDEX_CRC,
XZ_STATE_STREAM_FOOTER,
XZ_STATE_STREAM_PADDING,
XZ_STATE_BLOCK_HEADER,
XZ_STATE_BLOCK,
XZ_STATE_BLOCK_FOOTER
} EXzState;
typedef struct
{
EXzState state;
UInt32 pos;
unsigned alignPos;
unsigned indexPreSize;
CXzStreamFlags streamFlags;
UInt32 blockHeaderSize;
UInt64 packSize;
UInt64 unpackSize;
UInt64 numBlocks;
UInt64 indexSize;
UInt64 indexPos;
UInt64 padSize;
UInt64 numStreams;
UInt32 crc;
CMixCoder decoder;
CXzBlock block;
CXzCheck check;
CSha256 sha;
Byte shaDigest[SHA256_DIGEST_SIZE];
Byte buf[XZ_BLOCK_HEADER_SIZE_MAX];
} CXzUnpacker;
SRes XzUnpacker_Create(CXzUnpacker *p, ISzAlloc *alloc);
void XzUnpacker_Free(CXzUnpacker *p);
/*
finishMode:
It has meaning only if the decoding reaches output limit (*destLen).
LZMA_FINISH_ANY - use smallest number of input bytes
LZMA_FINISH_END - read EndOfStream marker after decoding
Returns:
SZ_OK
status:
LZMA_STATUS_FINISHED_WITH_MARK
LZMA_STATUS_NOT_FINISHED
SZ_ERROR_DATA - Data error
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_UNSUPPORTED - Unsupported properties
SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
*/
SRes XzUnpacker_Code(CXzUnpacker *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, /* int srcWasFinished, */ int finishMode,
ECoderStatus *status);
Bool XzUnpacker_IsStreamWasFinished(CXzUnpacker *p);
#ifdef __cplusplus
}
#endif
#endif

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/* XzCrc64.c -- CRC64 calculation
2009-04-15 : Igor Pavlov : Public domain */
#include "XzCrc64.h"
#define kCrc64Poly 0xC96C5795D7870F42
UInt64 g_Crc64Table[256];
void MY_FAST_CALL Crc64GenerateTable(void)
{
UInt32 i;
for (i = 0; i < 256; i++)
{
UInt64 r = i;
int j;
for (j = 0; j < 8; j++)
r = (r >> 1) ^ ((UInt64)kCrc64Poly & ~((r & 1) - 1));
g_Crc64Table[i] = r;
}
}
UInt64 MY_FAST_CALL Crc64Update(UInt64 v, const void *data, size_t size)
{
const Byte *p = (const Byte *)data;
for (; size > 0 ; size--, p++)
v = CRC64_UPDATE_BYTE(v, *p);
return v;
}
UInt64 MY_FAST_CALL Crc64Calc(const void *data, size_t size)
{
return CRC64_GET_DIGEST(Crc64Update(CRC64_INIT_VAL, data, size));
}

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/* XzCrc64.c -- CRC64 calculation
2009-04-15 : Igor Pavlov : Public domain */
#ifndef __XZ_CRC64_H
#define __XZ_CRC64_H
#include <stddef.h>
#include "Types.h"
#ifdef __cplusplus
extern "C" {
#endif
extern UInt64 g_Crc64Table[];
void MY_FAST_CALL Crc64GenerateTable(void);
#define CRC64_INIT_VAL 0xFFFFFFFFFFFFFFFF
#define CRC64_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFFFFFFFFFF)
#define CRC64_UPDATE_BYTE(crc, b) (g_Crc64Table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt64 MY_FAST_CALL Crc64Update(UInt64 crc, const void *data, size_t size);
UInt64 MY_FAST_CALL Crc64Calc(const void *data, size_t size);
#ifdef __cplusplus
}
#endif
#endif

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/* XzDec.c -- Xz Decode
2009-06-08 : Igor Pavlov : Public domain */
/* #define XZ_DUMP */
#ifdef XZ_DUMP
#include <stdio.h>
#endif
#include <stdlib.h>
#include <string.h>
#include "7zCrc.h"
#include "Alloc.h"
#include "Bra.h"
#include "CpuArch.h"
#include "Delta.h"
#include "Lzma2Dec.h"
#ifdef USE_SUBBLOCK
#include "SbDec.h"
#endif
#include "Xz.h"
#define XZ_CHECK_SIZE_MAX 64
#define CODER_BUF_SIZE (1 << 17)
unsigned Xz_ReadVarInt(const Byte *p, size_t maxSize, UInt64 *value)
{
int i, limit;
*value = 0;
limit = (maxSize > 9) ? 9 : (int)maxSize;
for (i = 0; i < limit;)
{
Byte b = p[i];
*value |= (UInt64)(b & 0x7F) << (7 * i++);
if ((b & 0x80) == 0)
return (b == 0 && i != 1) ? 0 : i;
}
return 0;
}
/* ---------- BraState ---------- */
#define BRA_BUF_SIZE (1 << 14)
typedef struct
{
size_t bufPos;
size_t bufConv;
size_t bufTotal;
UInt32 methodId;
int encodeMode;
UInt32 delta;
UInt32 ip;
UInt32 x86State;
Byte deltaState[DELTA_STATE_SIZE];
Byte buf[BRA_BUF_SIZE];
} CBraState;
void BraState_Free(void *pp, ISzAlloc *alloc)
{
alloc->Free(alloc, pp);
}
SRes BraState_SetProps(void *pp, const Byte *props, size_t propSize, ISzAlloc *alloc)
{
CBraState *p = ((CBraState *)pp);
alloc = alloc;
p->encodeMode = 0;
p->ip = 0;
if (p->methodId == XZ_ID_Delta)
{
if (propSize != 1)
return SZ_ERROR_UNSUPPORTED;
p->delta = (unsigned)props[0] + 1;
}
else
{
if (propSize == 4)
{
UInt32 v = GetUi32(props);
switch(p->methodId)
{
case XZ_ID_PPC:
case XZ_ID_ARM:
case XZ_ID_SPARC:
if ((v & 3) != 0)
return SZ_ERROR_UNSUPPORTED;
break;
case XZ_ID_ARMT:
if ((v & 1) != 0)
return SZ_ERROR_UNSUPPORTED;
break;
case XZ_ID_IA64:
if ((v & 0xF) != 0)
return SZ_ERROR_UNSUPPORTED;
break;
}
p->ip = v;
}
else if (propSize != 0)
return SZ_ERROR_UNSUPPORTED;
}
return SZ_OK;
}
void BraState_Init(void *pp)
{
CBraState *p = ((CBraState *)pp);
p->bufPos = p->bufConv = p->bufTotal = 0;
x86_Convert_Init(p->x86State);
if (p->methodId == XZ_ID_Delta)
Delta_Init(p->deltaState);
}
#define CASE_BRA_CONV(isa) case XZ_ID_ ## isa: p->bufConv = isa ## _Convert(p->buf, p->bufTotal, p->ip, p->encodeMode); break;
static SRes BraState_Code(void *pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
int srcWasFinished, ECoderFinishMode finishMode, int *wasFinished)
{
CBraState *p = ((CBraState *)pp);
SizeT destLenOrig = *destLen;
SizeT srcLenOrig = *srcLen;
*destLen = 0;
*srcLen = 0;
finishMode = finishMode;
*wasFinished = 0;
while (destLenOrig > 0)
{
if (p->bufPos != p->bufConv)
{
size_t curSize = p->bufConv - p->bufPos;
if (curSize > destLenOrig)
curSize = destLenOrig;
memcpy(dest, p->buf + p->bufPos, curSize);
p->bufPos += curSize;
*destLen += curSize;
dest += curSize;
destLenOrig -= curSize;
continue;
}
p->bufTotal -= p->bufPos;
memmove(p->buf, p->buf + p->bufPos, p->bufTotal);
p->bufPos = 0;
p->bufConv = 0;
{
size_t curSize = BRA_BUF_SIZE - p->bufTotal;
if (curSize > srcLenOrig)
curSize = srcLenOrig;
memcpy(p->buf + p->bufTotal, src, curSize);
*srcLen += curSize;
src += curSize;
srcLenOrig -= curSize;
p->bufTotal += curSize;
}
if (p->bufTotal == 0)
break;
switch(p->methodId)
{
case XZ_ID_Delta:
if (p->encodeMode)
Delta_Encode(p->deltaState, p->delta, p->buf, p->bufTotal);
else
Delta_Decode(p->deltaState, p->delta, p->buf, p->bufTotal);
p->bufConv = p->bufTotal;
break;
case XZ_ID_X86:
p->bufConv = x86_Convert(p->buf, p->bufTotal, p->ip, &p->x86State, p->encodeMode);
break;
CASE_BRA_CONV(PPC)
CASE_BRA_CONV(IA64)
CASE_BRA_CONV(ARM)
CASE_BRA_CONV(ARMT)
CASE_BRA_CONV(SPARC)
default:
return SZ_ERROR_UNSUPPORTED;
}
p->ip += (UInt32)p->bufConv;
if (p->bufConv == 0)
{
if (!srcWasFinished)
break;
p->bufConv = p->bufTotal;
}
}
if (p->bufTotal == p->bufPos && srcLenOrig == 0 && srcWasFinished)
*wasFinished = 1;
return SZ_OK;
}
SRes BraState_SetFromMethod(IStateCoder *p, UInt64 id, ISzAlloc *alloc)
{
CBraState *decoder;
if (id != XZ_ID_Delta &&
id != XZ_ID_X86 &&
id != XZ_ID_PPC &&
id != XZ_ID_IA64 &&
id != XZ_ID_ARM &&
id != XZ_ID_ARMT &&
id != XZ_ID_SPARC)
return SZ_ERROR_UNSUPPORTED;
p->p = 0;
decoder = alloc->Alloc(alloc, sizeof(CBraState));
if (decoder == 0)
return SZ_ERROR_MEM;
decoder->methodId = (UInt32)id;
p->p = decoder;
p->Free = BraState_Free;
p->SetProps = BraState_SetProps;
p->Init = BraState_Init;
p->Code = BraState_Code;
return SZ_OK;
}
/* ---------- SbState ---------- */
#ifdef USE_SUBBLOCK
static void SbState_Free(void *pp, ISzAlloc *alloc)
{
CSubblockDec *p = (CSubblockDec *)pp;
SubblockDec_Free(p, alloc);
alloc->Free(alloc, pp);
}
static SRes SbState_SetProps(void *pp, const Byte *props, size_t propSize, ISzAlloc *alloc)
{
pp = pp;
props = props;
alloc = alloc;
return (propSize == 0) ? SZ_OK : SZ_ERROR_UNSUPPORTED;
}
static void SbState_Init(void *pp)
{
SubblockDec_Init((CSubblockDec *)pp);
}
static SRes SbState_Code(void *pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
int srcWasFinished, ECoderFinishMode finishMode, int *wasFinished)
{
ECoderStatus status;
SRes res = SubblockDec_Decode((CSubblockDec *)pp, dest, destLen, src, srcLen, finishMode, &status);
srcWasFinished = srcWasFinished;
*wasFinished = (status == LZMA_STATUS_FINISHED_WITH_MARK);
return res;
}
SRes SbState_SetFromMethod(IStateCoder *p, ISzAlloc *alloc)
{
CSubblockDec *decoder;
p->p = 0;
decoder = alloc->Alloc(alloc, sizeof(CSubblockDec));
if (decoder == 0)
return SZ_ERROR_MEM;
p->p = decoder;
p->Free = SbState_Free;
p->SetProps = SbState_SetProps;
p->Init = SbState_Init;
p->Code = SbState_Code;
SubblockDec_Construct(decoder);
return SZ_OK;
}
#endif
/* ---------- Lzma2State ---------- */
static void Lzma2State_Free(void *pp, ISzAlloc *alloc)
{
Lzma2Dec_Free((CLzma2Dec *)pp, alloc);
alloc->Free(alloc, pp);
}
static SRes Lzma2State_SetProps(void *pp, const Byte *props, size_t propSize, ISzAlloc *alloc)
{
if (propSize != 1)
return SZ_ERROR_UNSUPPORTED;
return Lzma2Dec_Allocate((CLzma2Dec *)pp, props[0], alloc);
}
static void Lzma2State_Init(void *pp)
{
Lzma2Dec_Init((CLzma2Dec *)pp);
}
static SRes Lzma2State_Code(void *pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
int srcWasFinished, ECoderFinishMode finishMode, int *wasFinished)
{
ELzmaStatus status;
/* ELzmaFinishMode fm = (finishMode == LZMA_FINISH_ANY) ? LZMA_FINISH_ANY : LZMA_FINISH_END; */
SRes res = Lzma2Dec_DecodeToBuf((CLzma2Dec *)pp, dest, destLen, src, srcLen, finishMode, &status);
srcWasFinished = srcWasFinished;
*wasFinished = (status == LZMA_STATUS_FINISHED_WITH_MARK);
return res;
}
static SRes Lzma2State_SetFromMethod(IStateCoder *p, ISzAlloc *alloc)
{
CLzma2Dec *decoder = alloc->Alloc(alloc, sizeof(CLzma2Dec));
p->p = decoder;
if (decoder == 0)
return SZ_ERROR_MEM;
p->Free = Lzma2State_Free;
p->SetProps = Lzma2State_SetProps;
p->Init = Lzma2State_Init;
p->Code = Lzma2State_Code;
Lzma2Dec_Construct(decoder);
return SZ_OK;
}
void MixCoder_Construct(CMixCoder *p, ISzAlloc *alloc)
{
int i;
p->alloc = alloc;
p->buf = 0;
p->numCoders = 0;
for (i = 0; i < MIXCODER_NUM_FILTERS_MAX; i++)
p->coders[i].p = NULL;
}
void MixCoder_Free(CMixCoder *p)
{
int i;
for (i = 0; i < p->numCoders; i++)
{
IStateCoder *sc = &p->coders[i];
if (p->alloc && sc->p)
sc->Free(sc->p, p->alloc);
}
p->numCoders = 0;
if (p->buf)
p->alloc->Free(p->alloc, p->buf);
}
void MixCoder_Init(CMixCoder *p)
{
int i;
for (i = 0; i < p->numCoders - 1; i++)
{
p->size[i] = 0;
p->pos[i] = 0;
p->finished[i] = 0;
}
for (i = 0; i < p->numCoders; i++)
{
IStateCoder *coder = &p->coders[i];
coder->Init(coder->p);
}
}
SRes MixCoder_SetFromMethod(CMixCoder *p, int coderIndex, UInt64 methodId)
{
IStateCoder *sc = &p->coders[coderIndex];
p->ids[coderIndex] = methodId;
switch(methodId)
{
case XZ_ID_LZMA2: return Lzma2State_SetFromMethod(sc, p->alloc);
#ifdef USE_SUBBLOCK
case XZ_ID_Subblock: return SbState_SetFromMethod(sc, p->alloc);
#endif
}
if (coderIndex == 0)
return SZ_ERROR_UNSUPPORTED;
return BraState_SetFromMethod(sc, methodId, p->alloc);
}
SRes MixCoder_Code(CMixCoder *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, int srcWasFinished,
ECoderFinishMode finishMode, ECoderStatus *status)
{
SizeT destLenOrig = *destLen;
SizeT srcLenOrig = *srcLen;
Bool allFinished = True;
*destLen = 0;
*srcLen = 0;
*status = CODER_STATUS_NOT_FINISHED;
if (p->buf == 0)
{
p->buf = p->alloc->Alloc(p->alloc, CODER_BUF_SIZE * (MIXCODER_NUM_FILTERS_MAX - 1));
if (p->buf == 0)
return SZ_ERROR_MEM;
}
if (p->numCoders != 1)
finishMode = CODER_FINISH_ANY;
for (;;)
{
Bool processed = False;
int i;
/*
if (p->numCoders == 1 && *destLen == destLenOrig && finishMode == LZMA_FINISH_ANY)
break;
*/
for (i = 0; i < p->numCoders; i++)
{
SRes res;
IStateCoder *coder = &p->coders[i];
Byte *destCur;
SizeT destLenCur, srcLenCur;
const Byte *srcCur;
int srcFinishedCur;
int encodingWasFinished;
if (i == 0)
{
srcCur = src;
srcLenCur = srcLenOrig - *srcLen;
srcFinishedCur = srcWasFinished;
}
else
{
srcCur = p->buf + (CODER_BUF_SIZE * (i - 1)) + p->pos[i - 1];
srcLenCur = p->size[i - 1] - p->pos[i - 1];
srcFinishedCur = p->finished[i - 1];
}
if (i == p->numCoders - 1)
{
destCur = dest;
destLenCur = destLenOrig - *destLen;
}
else
{
if (p->pos[i] != p->size[i])
continue;
destCur = p->buf + (CODER_BUF_SIZE * i);
destLenCur = CODER_BUF_SIZE;
}
res = coder->Code(coder->p, destCur, &destLenCur, srcCur, &srcLenCur, srcFinishedCur, finishMode, &encodingWasFinished);
if (!encodingWasFinished)
allFinished = False;
if (i == 0)
{
*srcLen += srcLenCur;
src += srcLenCur;
}
else
{
p->pos[i - 1] += srcLenCur;
}
if (i == p->numCoders - 1)
{
*destLen += destLenCur;
dest += destLenCur;
}
else
{
p->size[i] = destLenCur;
p->pos[i] = 0;
p->finished[i] = encodingWasFinished;
}
if (res != SZ_OK)
return res;
if (destLenCur != 0 || srcLenCur != 0)
processed = True;
}
if (!processed)
break;
}
if (allFinished)
*status = CODER_STATUS_FINISHED_WITH_MARK;
return SZ_OK;
}
SRes Xz_ParseHeader(CXzStreamFlags *p, const Byte *buf)
{
*p = (CXzStreamFlags)GetBe16(buf + XZ_SIG_SIZE);
if (CrcCalc(buf + XZ_SIG_SIZE, XZ_STREAM_FLAGS_SIZE) !=
GetUi32(buf + XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE))
return SZ_ERROR_NO_ARCHIVE;
return XzFlags_IsSupported(*p) ? SZ_OK : SZ_ERROR_UNSUPPORTED;
}
static Bool Xz_CheckFooter(CXzStreamFlags flags, UInt64 indexSize, const Byte *buf)
{
return
indexSize == (((UInt64)GetUi32(buf + 4) + 1) << 2) &&
(GetUi32(buf) == CrcCalc(buf + 4, 6) &&
flags == GetBe16(buf + 8) &&
memcmp(buf + 10, XZ_FOOTER_SIG, XZ_FOOTER_SIG_SIZE) == 0);
}
#define READ_VARINT_AND_CHECK(buf, pos, size, res) \
{ unsigned s = Xz_ReadVarInt(buf + pos, size - pos, res); \
if (s == 0) return SZ_ERROR_ARCHIVE; pos += s; }
SRes XzBlock_Parse(CXzBlock *p, const Byte *header)
{
unsigned pos;
int numFilters, i;
UInt32 headerSize = (UInt32)header[0] << 2;
if (CrcCalc(header, headerSize) != GetUi32(header + headerSize))
return SZ_ERROR_ARCHIVE;
pos = 1;
if (pos == headerSize)
return SZ_ERROR_ARCHIVE;
p->flags = header[pos++];
if (XzBlock_HasPackSize(p))
{
READ_VARINT_AND_CHECK(header, pos, headerSize, &p->packSize);
if (p->packSize == 0 || p->packSize + headerSize >= (UInt64)1 << 63)
return SZ_ERROR_ARCHIVE;
}
if (XzBlock_HasUnpackSize(p))
READ_VARINT_AND_CHECK(header, pos, headerSize, &p->unpackSize);
numFilters = XzBlock_GetNumFilters(p);
for (i = 0; i < numFilters; i++)
{
CXzFilter *filter = p->filters + i;
UInt64 size;
READ_VARINT_AND_CHECK(header, pos, headerSize, &filter->id);
READ_VARINT_AND_CHECK(header, pos, headerSize, &size);
if (size > headerSize - pos || size > XZ_FILTER_PROPS_SIZE_MAX)
return SZ_ERROR_ARCHIVE;
filter->propsSize = (UInt32)size;
memcpy(filter->props, header + pos, (size_t)size);
pos += (unsigned)size;
#ifdef XZ_DUMP
printf("\nf[%d] = %2X: ", i, filter->id);
{
int i;
for (i = 0; i < size; i++)
printf(" %2X", filter->props[i]);
}
#endif
}
while (pos < headerSize)
if (header[pos++] != 0)
return SZ_ERROR_ARCHIVE;
return SZ_OK;
}
SRes XzDec_Init(CMixCoder *p, const CXzBlock *block)
{
int i;
Bool needReInit = True;
int numFilters = XzBlock_GetNumFilters(block);
if (numFilters == p->numCoders)
{
for (i = 0; i < numFilters; i++)
if (p->ids[i] != block->filters[numFilters - 1 - i].id)
break;
needReInit = (i != numFilters);
}
if (needReInit)
{
MixCoder_Free(p);
p->numCoders = numFilters;
for (i = 0; i < numFilters; i++)
{
const CXzFilter *f = &block->filters[numFilters - 1 - i];
RINOK(MixCoder_SetFromMethod(p, i, f->id));
}
}
for (i = 0; i < numFilters; i++)
{
const CXzFilter *f = &block->filters[numFilters - 1 - i];
IStateCoder *sc = &p->coders[i];
RINOK(sc->SetProps(sc->p, f->props, f->propsSize, p->alloc));
}
MixCoder_Init(p);
return SZ_OK;
}
SRes XzUnpacker_Create(CXzUnpacker *p, ISzAlloc *alloc)
{
MixCoder_Construct(&p->decoder, alloc);
p->state = XZ_STATE_STREAM_HEADER;
p->pos = 0;
p->numStreams = 0;
return SZ_OK;
}
void XzUnpacker_Free(CXzUnpacker *p)
{
MixCoder_Free(&p->decoder);
}
SRes XzUnpacker_Code(CXzUnpacker *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, int finishMode, ECoderStatus *status)
{
SizeT destLenOrig = *destLen;
SizeT srcLenOrig = *srcLen;
*destLen = 0;
*srcLen = 0;
*status = CODER_STATUS_NOT_SPECIFIED;
for (;;)
{
SizeT srcRem = srcLenOrig - *srcLen;
if (p->state == XZ_STATE_BLOCK)
{
SizeT destLen2 = destLenOrig - *destLen;
SizeT srcLen2 = srcLenOrig - *srcLen;
SRes res;
if (srcLen2 == 0 && destLen2 == 0)
{
*status = CODER_STATUS_NOT_FINISHED;
return SZ_OK;
}
res = MixCoder_Code(&p->decoder, dest, &destLen2, src, &srcLen2, False, finishMode, status);
XzCheck_Update(&p->check, dest, destLen2);
(*srcLen) += srcLen2;
src += srcLen2;
p->packSize += srcLen2;
(*destLen) += destLen2;
dest += destLen2;
p->unpackSize += destLen2;
RINOK(res);
if (*status == CODER_STATUS_FINISHED_WITH_MARK)
{
Byte temp[32];
unsigned num = Xz_WriteVarInt(temp, p->packSize + p->blockHeaderSize + XzFlags_GetCheckSize(p->streamFlags));
num += Xz_WriteVarInt(temp + num, p->unpackSize);
Sha256_Update(&p->sha, temp, num);
p->indexSize += num;
p->numBlocks++;
p->state = XZ_STATE_BLOCK_FOOTER;
p->pos = 0;
p->alignPos = 0;
}
else if (srcLen2 == 0 && destLen2 == 0)
return SZ_OK;
continue;
}
if (srcRem == 0)
{
*status = CODER_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
switch(p->state)
{
case XZ_STATE_STREAM_HEADER:
{
if (p->pos < XZ_STREAM_HEADER_SIZE)
{
if (p->pos < XZ_SIG_SIZE && *src != XZ_SIG[p->pos])
return SZ_ERROR_NO_ARCHIVE;
p->buf[p->pos++] = *src++;
(*srcLen)++;
}
else
{
RINOK(Xz_ParseHeader(&p->streamFlags, p->buf));
p->state = XZ_STATE_BLOCK_HEADER;
Sha256_Init(&p->sha);
p->indexSize = 0;
p->numBlocks = 0;
p->pos = 0;
}
break;
}
case XZ_STATE_BLOCK_HEADER:
{
if (p->pos == 0)
{
p->buf[p->pos++] = *src++;
(*srcLen)++;
if (p->buf[0] == 0)
{
p->indexPreSize = 1 + Xz_WriteVarInt(p->buf + 1, p->numBlocks);
p->indexPos = p->indexPreSize;
p->indexSize += p->indexPreSize;
Sha256_Final(&p->sha, p->shaDigest);
Sha256_Init(&p->sha);
p->crc = CrcUpdate(CRC_INIT_VAL, p->buf, p->indexPreSize);
p->state = XZ_STATE_STREAM_INDEX;
}
p->blockHeaderSize = ((UInt32)p->buf[0] << 2) + 4;
}
else if (p->pos != p->blockHeaderSize)
{
UInt32 cur = p->blockHeaderSize - p->pos;
if (cur > srcRem)
cur = (UInt32)srcRem;
memcpy(p->buf + p->pos, src, cur);
p->pos += cur;
(*srcLen) += cur;
src += cur;
}
else
{
RINOK(XzBlock_Parse(&p->block, p->buf));
p->state = XZ_STATE_BLOCK;
p->packSize = 0;
p->unpackSize = 0;
XzCheck_Init(&p->check, XzFlags_GetCheckType(p->streamFlags));
RINOK(XzDec_Init(&p->decoder, &p->block));
}
break;
}
case XZ_STATE_BLOCK_FOOTER:
{
if (((p->packSize + p->alignPos) & 3) != 0)
{
(*srcLen)++;
p->alignPos++;
if (*src++ != 0)
return SZ_ERROR_CRC;
}
else
{
UInt32 checkSize = XzFlags_GetCheckSize(p->streamFlags);
UInt32 cur = checkSize - p->pos;
if (cur != 0)
{
if (cur > srcRem)
cur = (UInt32)srcRem;
memcpy(p->buf + p->pos, src, cur);
p->pos += cur;
(*srcLen) += cur;
src += cur;
}
else
{
Byte digest[XZ_CHECK_SIZE_MAX];
p->state = XZ_STATE_BLOCK_HEADER;
p->pos = 0;
if (XzCheck_Final(&p->check, digest) && memcmp(digest, p->buf, checkSize) != 0)
return SZ_ERROR_CRC;
}
}
break;
}
case XZ_STATE_STREAM_INDEX:
{
if (p->pos < p->indexPreSize)
{
(*srcLen)++;
if (*src++ != p->buf[p->pos++])
return SZ_ERROR_CRC;
}
else
{
if (p->indexPos < p->indexSize)
{
UInt64 cur = p->indexSize - p->indexPos;
if (srcRem > cur)
srcRem = (SizeT)cur;
p->crc = CrcUpdate(p->crc, src, srcRem);
Sha256_Update(&p->sha, src, srcRem);
(*srcLen) += srcRem;
src += srcRem;
p->indexPos += srcRem;
}
else if ((p->indexPos & 3) != 0)
{
Byte b = *src++;
p->crc = CRC_UPDATE_BYTE(p->crc, b);
(*srcLen)++;
p->indexPos++;
p->indexSize++;
if (b != 0)
return SZ_ERROR_CRC;
}
else
{
Byte digest[SHA256_DIGEST_SIZE];
p->state = XZ_STATE_STREAM_INDEX_CRC;
p->indexSize += 4;
p->pos = 0;
Sha256_Final(&p->sha, digest);
if (memcmp(digest, p->shaDigest, SHA256_DIGEST_SIZE) != 0)
return SZ_ERROR_CRC;
}
}
break;
}
case XZ_STATE_STREAM_INDEX_CRC:
{
if (p->pos < 4)
{
(*srcLen)++;
p->buf[p->pos++] = *src++;
}
else
{
p->state = XZ_STATE_STREAM_FOOTER;
p->pos = 0;
if (CRC_GET_DIGEST(p->crc) != GetUi32(p->buf))
return SZ_ERROR_CRC;
}
break;
}
case XZ_STATE_STREAM_FOOTER:
{
UInt32 cur = XZ_STREAM_FOOTER_SIZE - p->pos;
if (cur > srcRem)
cur = (UInt32)srcRem;
memcpy(p->buf + p->pos, src, cur);
p->pos += cur;
(*srcLen) += cur;
src += cur;
if (p->pos == XZ_STREAM_FOOTER_SIZE)
{
p->state = XZ_STATE_STREAM_PADDING;
p->numStreams++;
p->padSize = 0;
if (!Xz_CheckFooter(p->streamFlags, p->indexSize, p->buf))
return SZ_ERROR_CRC;
}
break;
}
case XZ_STATE_STREAM_PADDING:
{
if (*src != 0)
{
if (((UInt32)p->padSize & 3) != 0)
return SZ_ERROR_NO_ARCHIVE;
p->pos = 0;
p->state = XZ_STATE_STREAM_HEADER;
}
else
{
(*srcLen)++;
src++;
p->padSize++;
}
break;
}
}
}
/*
if (p->state == XZ_STATE_FINISHED)
*status = CODER_STATUS_FINISHED_WITH_MARK;
return SZ_OK;
*/
}
Bool XzUnpacker_IsStreamWasFinished(CXzUnpacker *p)
{
return (p->state == XZ_STATE_STREAM_PADDING) && (((UInt32)p->padSize & 3) == 0);
}

497
C/XzEnc.c Executable file
View File

@@ -0,0 +1,497 @@
/* XzEnc.c -- Xz Encode
2009-06-04 : Igor Pavlov : Public domain */
#include <stdlib.h>
#include <string.h>
#include "7zCrc.h"
#include "Alloc.h"
#include "Bra.h"
#include "CpuArch.h"
#ifdef USE_SUBBLOCK
#include "SbEnc.h"
#endif
#include "XzEnc.h"
static void *SzBigAlloc(void *p, size_t size) { p = p; return BigAlloc(size); }
static void SzBigFree(void *p, void *address) { p = p; BigFree(address); }
static ISzAlloc g_BigAlloc = { SzBigAlloc, SzBigFree };
static void *SzAlloc(void *p, size_t size) { p = p; return MyAlloc(size); }
static void SzFree(void *p, void *address) { p = p; MyFree(address); }
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
#define XzBlock_ClearFlags(p) (p)->flags = 0;
#define XzBlock_SetNumFilters(p, n) (p)->flags |= ((n) - 1);
#define XzBlock_SetHasPackSize(p) (p)->flags |= XZ_BF_PACK_SIZE;
#define XzBlock_SetHasUnpackSize(p) (p)->flags |= XZ_BF_UNPACK_SIZE;
static SRes WriteBytes(ISeqOutStream *s, const void *buf, UInt32 size)
{
return (s->Write(s, buf, size) == size) ? SZ_OK : SZ_ERROR_WRITE;
}
static SRes WriteBytesAndCrc(ISeqOutStream *s, const void *buf, UInt32 size, UInt32 *crc)
{
*crc = CrcUpdate(*crc, buf, size);
return WriteBytes(s, buf, size);
}
SRes Xz_WriteHeader(CXzStreamFlags f, ISeqOutStream *s)
{
UInt32 crc;
Byte header[XZ_STREAM_HEADER_SIZE];
memcpy(header, XZ_SIG, XZ_SIG_SIZE);
header[XZ_SIG_SIZE] = (Byte)(f >> 8);
header[XZ_SIG_SIZE + 1] = (Byte)(f & 0xFF);
crc = CrcCalc(header + XZ_SIG_SIZE, XZ_STREAM_FLAGS_SIZE);
SetUi32(header + XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE, crc);
return WriteBytes(s, header, XZ_STREAM_HEADER_SIZE);
}
SRes XzBlock_WriteHeader(const CXzBlock *p, ISeqOutStream *s)
{
Byte header[XZ_BLOCK_HEADER_SIZE_MAX];
unsigned pos = 1;
int numFilters, i;
header[pos++] = p->flags;
if (XzBlock_HasPackSize(p)) pos += Xz_WriteVarInt(header + pos, p->packSize);
if (XzBlock_HasUnpackSize(p)) pos += Xz_WriteVarInt(header + pos, p->unpackSize);
numFilters = XzBlock_GetNumFilters(p);
for (i = 0; i < numFilters; i++)
{
const CXzFilter *f = &p->filters[i];
pos += Xz_WriteVarInt(header + pos, f->id);
pos += Xz_WriteVarInt(header + pos, f->propsSize);
memcpy(header + pos, f->props, f->propsSize);
pos += f->propsSize;
}
while((pos & 3) != 0)
header[pos++] = 0;
header[0] = (Byte)(pos >> 2);
SetUi32(header + pos, CrcCalc(header, pos));
return WriteBytes(s, header, pos + 4);
}
SRes Xz_WriteFooter(CXzStream *p, ISeqOutStream *s)
{
Byte buf[32];
UInt64 globalPos;
{
UInt32 crc = CRC_INIT_VAL;
unsigned pos = 1 + Xz_WriteVarInt(buf + 1, p->numBlocks);
size_t i;
globalPos = pos;
buf[0] = 0;
RINOK(WriteBytesAndCrc(s, buf, pos, &crc));
for (i = 0; i < p->numBlocks; i++)
{
const CXzBlockSizes *block = &p->blocks[i];
pos = Xz_WriteVarInt(buf, block->totalSize);
pos += Xz_WriteVarInt(buf + pos, block->unpackSize);
globalPos += pos;
RINOK(WriteBytesAndCrc(s, buf, pos, &crc));
}
pos = ((unsigned)globalPos & 3);
if (pos != 0)
{
buf[0] = buf[1] = buf[2] = 0;
RINOK(WriteBytesAndCrc(s, buf, 4 - pos, &crc));
globalPos += 4 - pos;
}
{
SetUi32(buf, CRC_GET_DIGEST(crc));
RINOK(WriteBytes(s, buf, 4));
globalPos += 4;
}
}
{
UInt32 indexSize = (UInt32)((globalPos >> 2) - 1);
SetUi32(buf + 4, indexSize);
buf[8] = (Byte)(p->flags >> 8);
buf[9] = (Byte)(p->flags & 0xFF);
SetUi32(buf, CrcCalc(buf + 4, 6));
memcpy(buf + 10, XZ_FOOTER_SIG, XZ_FOOTER_SIG_SIZE);
return WriteBytes(s, buf, 12);
}
}
SRes Xz_AddIndexRecord(CXzStream *p, UInt64 unpackSize, UInt64 totalSize, ISzAlloc *alloc)
{
if (p->blocks == 0 || p->numBlocksAllocated == p->numBlocks)
{
size_t num = (p->numBlocks + 1) * 2;
size_t newSize = sizeof(CXzBlockSizes) * num;
CXzBlockSizes *blocks;
if (newSize / sizeof(CXzBlockSizes) != num)
return SZ_ERROR_MEM;
blocks = alloc->Alloc(alloc, newSize);
if (blocks == 0)
return SZ_ERROR_MEM;
if (p->numBlocks != 0)
{
memcpy(blocks, p->blocks, p->numBlocks * sizeof(CXzBlockSizes));
Xz_Free(p, alloc);
}
p->blocks = blocks;
p->numBlocksAllocated = num;
}
{
CXzBlockSizes *block = &p->blocks[p->numBlocks++];
block->totalSize = totalSize;
block->unpackSize = unpackSize;
}
return SZ_OK;
}
/* ---------- CSeqCheckInStream ---------- */
typedef struct
{
ISeqInStream p;
ISeqInStream *realStream;
UInt64 processed;
CXzCheck check;
} CSeqCheckInStream;
void SeqCheckInStream_Init(CSeqCheckInStream *p, int mode)
{
p->processed = 0;
XzCheck_Init(&p->check, mode);
}
void SeqCheckInStream_GetDigest(CSeqCheckInStream *p, Byte *digest)
{
XzCheck_Final(&p->check, digest);
}
static SRes SeqCheckInStream_Read(void *pp, void *data, size_t *size)
{
CSeqCheckInStream *p = (CSeqCheckInStream *)pp;
SRes res = p->realStream->Read(p->realStream, data, size);
XzCheck_Update(&p->check, data, *size);
p->processed += *size;
return res;
}
/* ---------- CSeqSizeOutStream ---------- */
typedef struct
{
ISeqOutStream p;
ISeqOutStream *realStream;
UInt64 processed;
} CSeqSizeOutStream;
static size_t MyWrite(void *pp, const void *data, size_t size)
{
CSeqSizeOutStream *p = (CSeqSizeOutStream *)pp;
size = p->realStream->Write(p->realStream, data, size);
p->processed += size;
return size;
}
/* ---------- CSeqInFilter ---------- */
/*
typedef struct _IFilter
{
void *p;
void (*Free)(void *p, ISzAlloc *alloc);
SRes (*SetProps)(void *p, const Byte *props, size_t propSize, ISzAlloc *alloc);
void (*Init)(void *p);
size_t (*Filter)(void *p, Byte *data, SizeT destLen);
} IFilter;
#define FILT_BUF_SIZE (1 << 19)
typedef struct
{
ISeqInStream p;
ISeqInStream *realStream;
UInt32 x86State;
UInt32 ip;
UInt64 processed;
CXzCheck check;
Byte buf[FILT_BUF_SIZE];
UInt32 bufferPos;
UInt32 convertedPosBegin;
UInt32 convertedPosEnd;
IFilter *filter;
} CSeqInFilter;
static SRes SeqInFilter_Read(void *pp, void *data, size_t *size)
{
CSeqInFilter *p = (CSeqInFilter *)pp;
size_t remSize = *size;
*size = 0;
while (remSize > 0)
{
int i;
if (p->convertedPosBegin != p->convertedPosEnd)
{
UInt32 sizeTemp = p->convertedPosEnd - p->convertedPosBegin;
if (remSize < sizeTemp)
sizeTemp = (UInt32)remSize;
memmove(data, p->buf + p->convertedPosBegin, sizeTemp);
p->convertedPosBegin += sizeTemp;
data = (void *)((Byte *)data + sizeTemp);
remSize -= sizeTemp;
*size += sizeTemp;
break;
}
for (i = 0; p->convertedPosEnd + i < p->bufferPos; i++)
p->buf[i] = p->buf[i + p->convertedPosEnd];
p->bufferPos = i;
p->convertedPosBegin = p->convertedPosEnd = 0;
{
size_t processedSizeTemp = FILT_BUF_SIZE - p->bufferPos;
RINOK(p->realStream->Read(p->realStream, p->buf + p->bufferPos, &processedSizeTemp));
p->bufferPos = p->bufferPos + (UInt32)processedSizeTemp;
}
p->convertedPosEnd = (UInt32)p->filter->Filter(p->filter->p, p->buf, p->bufferPos);
if (p->convertedPosEnd == 0)
{
if (p->bufferPos == 0)
break;
else
{
p->convertedPosEnd = p->bufferPos;
continue;
}
}
if (p->convertedPosEnd > p->bufferPos)
{
for (; p->bufferPos < p->convertedPosEnd; p->bufferPos++)
p->buf[p->bufferPos] = 0;
p->convertedPosEnd = (UInt32)p->filter->Filter(p->filter->p, p->buf, p->bufferPos);
}
}
return SZ_OK;
}
*/
/*
typedef struct
{
ISeqInStream p;
ISeqInStream *realStream;
CMixCoder mixCoder;
Byte buf[FILT_BUF_SIZE];
UInt32 bufPos;
UInt32 bufSize;
} CMixCoderSeqInStream;
static SRes CMixCoderSeqInStream_Read(void *pp, void *data, size_t *size)
{
CMixCoderSeqInStream *p = (CMixCoderSeqInStream *)pp;
SRes res = SZ_OK;
size_t remSize = *size;
*size = 0;
while (remSize > 0)
{
if (p->bufPos == p->bufSize)
{
size_t curSize;
p->bufPos = p->bufSize = 0;
if (*size != 0)
break;
curSize = FILT_BUF_SIZE;
RINOK(p->realStream->Read(p->realStream, p->buf, &curSize));
p->bufSize = (UInt32)curSize;
}
{
SizeT destLen = remSize;
SizeT srcLen = p->bufSize - p->bufPos;
res = MixCoder_Code(&p->mixCoder, data, &destLen, p->buf + p->bufPos, &srcLen, 0);
data = (void *)((Byte *)data + destLen);
remSize -= destLen;
*size += destLen;
p->bufPos += srcLen;
}
}
return res;
}
*/
#ifdef USE_SUBBLOCK
typedef struct
{
ISeqInStream p;
CSubblockEnc sb;
UInt64 processed;
} CSbEncInStream;
void SbEncInStream_Init(CSbEncInStream *p)
{
p->processed = 0;
SubblockEnc_Init(&p->sb);
}
static SRes SbEncInStream_Read(void *pp, void *data, size_t *size)
{
CSbEncInStream *p = (CSbEncInStream *)pp;
SRes res = SubblockEnc_Read(&p->sb, data, size);
p->processed += *size;
return res;
}
#endif
typedef struct
{
/* CMixCoderSeqInStream inStream; */
CLzma2EncHandle lzma2;
#ifdef USE_SUBBLOCK
CSbEncInStream sb;
#endif
ISzAlloc *alloc;
ISzAlloc *bigAlloc;
} CLzma2WithFilters;
static void Lzma2WithFilters_Construct(CLzma2WithFilters *p, ISzAlloc *alloc, ISzAlloc *bigAlloc)
{
p->alloc = alloc;
p->bigAlloc = bigAlloc;
p->lzma2 = NULL;
#ifdef USE_SUBBLOCK
p->sb.p.Read = SbEncInStream_Read;
SubblockEnc_Construct(&p->sb.sb, p->alloc);
#endif
}
static SRes Lzma2WithFilters_Create(CLzma2WithFilters *p)
{
p->lzma2 = Lzma2Enc_Create(p->alloc, p->bigAlloc);
if (p->lzma2 == 0)
return SZ_ERROR_MEM;
return SZ_OK;
}
static void Lzma2WithFilters_Free(CLzma2WithFilters *p)
{
#ifdef USE_SUBBLOCK
SubblockEnc_Free(&p->sb.sb);
#endif
if (p->lzma2)
{
Lzma2Enc_Destroy(p->lzma2);
p->lzma2 = NULL;
}
}
static SRes Xz_Compress(CXzStream *xz,
CLzma2WithFilters *lzmaf,
ISeqOutStream *outStream,
ISeqInStream *inStream,
const CLzma2EncProps *lzma2Props,
Bool useSubblock,
ICompressProgress *progress)
{
xz->flags = XZ_CHECK_CRC32;
RINOK(Lzma2Enc_SetProps(lzmaf->lzma2, lzma2Props));
RINOK(Xz_WriteHeader(xz->flags, outStream));
{
CSeqCheckInStream checkInStream;
CSeqSizeOutStream seqSizeOutStream;
CXzBlock block;
int filterIndex = 0;
XzBlock_ClearFlags(&block);
XzBlock_SetNumFilters(&block, 1 + (useSubblock ? 1 : 0));
if (useSubblock)
{
CXzFilter *f = &block.filters[filterIndex++];
f->id = XZ_ID_Subblock;
f->propsSize = 0;
}
{
CXzFilter *f = &block.filters[filterIndex++];
f->id = XZ_ID_LZMA2;
f->propsSize = 1;
f->props[0] = Lzma2Enc_WriteProperties(lzmaf->lzma2);
}
seqSizeOutStream.p.Write = MyWrite;
seqSizeOutStream.realStream = outStream;
seqSizeOutStream.processed = 0;
RINOK(XzBlock_WriteHeader(&block, &seqSizeOutStream.p));
checkInStream.p.Read = SeqCheckInStream_Read;
checkInStream.realStream = inStream;
SeqCheckInStream_Init(&checkInStream, XzFlags_GetCheckType(xz->flags));
#ifdef USE_SUBBLOCK
if (useSubblock)
{
lzmaf->sb.sb.inStream = &checkInStream.p;
SubblockEnc_Init(&lzmaf->sb.sb);
}
#endif
{
UInt64 packPos = seqSizeOutStream.processed;
SRes res = Lzma2Enc_Encode(lzmaf->lzma2, &seqSizeOutStream.p,
#ifdef USE_SUBBLOCK
useSubblock ? &lzmaf->sb.p:
#endif
&checkInStream.p,
progress);
RINOK(res);
block.unpackSize = checkInStream.processed;
block.packSize = seqSizeOutStream.processed - packPos;
}
{
unsigned padSize = 0;
Byte buf[128];
while((((unsigned)block.packSize + padSize) & 3) != 0)
buf[padSize++] = 0;
SeqCheckInStream_GetDigest(&checkInStream, buf + padSize);
RINOK(WriteBytes(&seqSizeOutStream.p, buf, padSize + XzFlags_GetCheckSize(xz->flags)));
RINOK(Xz_AddIndexRecord(xz, block.unpackSize, seqSizeOutStream.processed - padSize, &g_Alloc));
}
}
return Xz_WriteFooter(xz, outStream);
}
SRes Xz_Encode(ISeqOutStream *outStream, ISeqInStream *inStream,
const CLzma2EncProps *lzma2Props, Bool useSubblock,
ICompressProgress *progress)
{
SRes res;
CXzStream xz;
CLzma2WithFilters lzmaf;
Xz_Construct(&xz);
Lzma2WithFilters_Construct(&lzmaf, &g_Alloc, &g_BigAlloc);
res = Lzma2WithFilters_Create(&lzmaf);
if (res == SZ_OK)
res = Xz_Compress(&xz, &lzmaf, outStream, inStream,
lzma2Props, useSubblock, progress);
Lzma2WithFilters_Free(&lzmaf);
Xz_Free(&xz, &g_Alloc);
return res;
}
SRes Xz_EncodeEmpty(ISeqOutStream *outStream)
{
SRes res;
CXzStream xz;
Xz_Construct(&xz);
res = Xz_WriteHeader(xz.flags, outStream);
if (res == SZ_OK)
res = Xz_WriteFooter(&xz, outStream);
Xz_Free(&xz, &g_Alloc);
return res;
}

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