7 -CPPFLAGS += -D_GNU_SOURCE -I./include -I$(BUILDDIR)/include -I./ubi-utils/include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS)
8 +CPPFLAGS += -D_GNU_SOURCE -I./include -I$(BUILDDIR)/include -I./ubi-utils/include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS) -I./include/linux/lzma
10 ifeq ($(WITHOUT_XATTR), 1)
11 CPPFLAGS += -DWITHOUT_XATTR
16 -obj-mkfs.jffs2 = compr_rtime.o compr_zlib.o compr_lzo.o compr.o rbtree.o
17 +obj-mkfs.jffs2 = compr_rtime.o compr_zlib.o $(if $(WITHOUT_LZO),,compr_lzo.o) compr_lzma.o lzma/LzFind.o lzma/LzmaEnc.o lzma/LzmaDec.o compr.o rbtree.o
18 LDFLAGS_mkfs.jffs2 = $(ZLIBLDFLAGS) $(LZOLDFLAGS)
19 LDLIBS_mkfs.jffs2 = -lz $(LZOLDLIBS)
23 @@ -520,6 +520,9 @@ int jffs2_compressors_init(void)
24 #ifdef CONFIG_JFFS2_LZO
27 +#ifdef CONFIG_JFFS2_LZMA
33 @@ -534,5 +537,8 @@ int jffs2_compressors_exit(void)
34 #ifdef CONFIG_JFFS2_LZO
37 +#ifdef CONFIG_JFFS2_LZMA
46 #define CONFIG_JFFS2_ZLIB
47 #define CONFIG_JFFS2_RTIME
48 -#define CONFIG_JFFS2_LZO
49 +#define CONFIG_JFFS2_LZMA
51 #define JFFS2_RUBINMIPS_PRIORITY 10
52 #define JFFS2_DYNRUBIN_PRIORITY 20
53 #define JFFS2_RTIME_PRIORITY 50
54 -#define JFFS2_ZLIB_PRIORITY 60
55 -#define JFFS2_LZO_PRIORITY 80
56 +#define JFFS2_LZMA_PRIORITY 70
57 +#define JFFS2_ZLIB_PRIORITY 80
58 +#define JFFS2_LZO_PRIORITY 90
60 #define JFFS2_COMPR_MODE_NONE 0
61 #define JFFS2_COMPR_MODE_PRIORITY 1
62 @@ -115,5 +116,10 @@ void jffs2_rtime_exit(void);
63 int jffs2_lzo_init(void);
64 void jffs2_lzo_exit(void);
66 +#ifdef CONFIG_JFFS2_LZMA
67 +int jffs2_lzma_init(void);
68 +void jffs2_lzma_exit(void);
72 #endif /* __JFFS2_COMPR_H__ */
77 + * JFFS2 -- Journalling Flash File System, Version 2.
79 + * For licensing information, see the file 'LICENCE' in this directory.
81 + * JFFS2 wrapper to the LZMA C SDK
85 +#include <linux/lzma.h>
89 + static DEFINE_MUTEX(deflate_mutex);
93 +Byte propsEncoded[LZMA_PROPS_SIZE];
94 +SizeT propsSize = sizeof(propsEncoded);
96 +STATIC void lzma_free_workspace(void)
98 + LzmaEnc_Destroy(p, &lzma_alloc, &lzma_alloc);
101 +STATIC int INIT lzma_alloc_workspace(CLzmaEncProps *props)
103 + if ((p = (CLzmaEncHandle *)LzmaEnc_Create(&lzma_alloc)) == NULL)
105 + PRINT_ERROR("Failed to allocate lzma deflate workspace\n");
109 + if (LzmaEnc_SetProps(p, props) != SZ_OK)
111 + lzma_free_workspace();
115 + if (LzmaEnc_WriteProperties(p, propsEncoded, &propsSize) != SZ_OK)
117 + lzma_free_workspace();
124 +STATIC int jffs2_lzma_compress(unsigned char *data_in, unsigned char *cpage_out,
125 + uint32_t *sourcelen, uint32_t *dstlen, void *model)
127 + SizeT compress_size = (SizeT)(*dstlen);
131 + mutex_lock(&deflate_mutex);
134 + ret = LzmaEnc_MemEncode(p, cpage_out, &compress_size, data_in, *sourcelen,
135 + 0, NULL, &lzma_alloc, &lzma_alloc);
138 + mutex_unlock(&deflate_mutex);
144 + *dstlen = (uint32_t)compress_size;
149 +STATIC int jffs2_lzma_decompress(unsigned char *data_in, unsigned char *cpage_out,
150 + uint32_t srclen, uint32_t destlen, void *model)
153 + SizeT dl = (SizeT)destlen;
154 + SizeT sl = (SizeT)srclen;
155 + ELzmaStatus status;
157 + ret = LzmaDecode(cpage_out, &dl, data_in, &sl, propsEncoded,
158 + propsSize, LZMA_FINISH_ANY, &status, &lzma_alloc);
160 + if (ret != SZ_OK || status == LZMA_STATUS_NOT_FINISHED || dl != (SizeT)destlen)
166 +static struct jffs2_compressor jffs2_lzma_comp = {
167 + .priority = JFFS2_LZMA_PRIORITY,
169 + .compr = JFFS2_COMPR_LZMA,
170 + .compress = &jffs2_lzma_compress,
171 + .decompress = &jffs2_lzma_decompress,
175 +int INIT jffs2_lzma_init(void)
178 + CLzmaEncProps props;
179 + LzmaEncProps_Init(&props);
181 + props.dictSize = LZMA_BEST_DICT(0x2000);
182 + props.level = LZMA_BEST_LEVEL;
183 + props.lc = LZMA_BEST_LC;
184 + props.lp = LZMA_BEST_LP;
185 + props.pb = LZMA_BEST_PB;
186 + props.fb = LZMA_BEST_FB;
188 + ret = lzma_alloc_workspace(&props);
192 + ret = jffs2_register_compressor(&jffs2_lzma_comp);
194 + lzma_free_workspace();
199 +void jffs2_lzma_exit(void)
201 + jffs2_unregister_compressor(&jffs2_lzma_comp);
202 + lzma_free_workspace();
204 --- a/include/linux/jffs2.h
205 +++ b/include/linux/jffs2.h
207 #define JFFS2_COMPR_DYNRUBIN 0x05
208 #define JFFS2_COMPR_ZLIB 0x06
209 #define JFFS2_COMPR_LZO 0x07
210 +#define JFFS2_COMPR_LZMA 0x08
211 /* Compatibility flags. */
212 #define JFFS2_COMPAT_MASK 0xc000 /* What do to if an unknown nodetype is found */
213 #define JFFS2_NODE_ACCURATE 0x2000
215 +++ b/include/linux/lzma.h
221 + #include <linux/kernel.h>
222 + #include <linux/sched.h>
223 + #include <linux/slab.h>
224 + #include <linux/vmalloc.h>
225 + #include <linux/init.h>
226 + #define LZMA_MALLOC vmalloc
227 + #define LZMA_FREE vfree
228 + #define PRINT_ERROR(msg) printk(KERN_WARNING #msg)
229 + #define INIT __init
230 + #define STATIC static
232 + #include <stdint.h>
233 + #include <stdlib.h>
235 + #include <unistd.h>
236 + #include <string.h>
238 + #include <linux/jffs2.h>
240 + extern int page_size;
241 + #define PAGE_SIZE page_size
243 + #define LZMA_MALLOC malloc
244 + #define LZMA_FREE free
245 + #define PRINT_ERROR(msg) fprintf(stderr, msg)
250 +#include "lzma/LzmaDec.h"
251 +#include "lzma/LzmaEnc.h"
253 +#define LZMA_BEST_LEVEL (9)
254 +#define LZMA_BEST_LC (0)
255 +#define LZMA_BEST_LP (0)
256 +#define LZMA_BEST_PB (0)
257 +#define LZMA_BEST_FB (273)
259 +#define LZMA_BEST_DICT(n) (((int)((n) / 2)) * 2)
261 +static void *p_lzma_malloc(void *p, size_t size)
266 + return LZMA_MALLOC(size);
269 +static void p_lzma_free(void *p, void *address)
271 + if (address != NULL)
272 + LZMA_FREE(address);
275 +static ISzAlloc lzma_alloc = {p_lzma_malloc, p_lzma_free};
279 +++ b/include/linux/lzma/LzFind.h
281 +/* LzFind.h -- Match finder for LZ algorithms
283 +Copyright (c) 1999-2008 Igor Pavlov
284 +You can use any of the following license options:
285 + 1) GNU Lesser General Public License (GNU LGPL)
286 + 2) Common Public License (CPL)
287 + 3) Common Development and Distribution License (CDDL) Version 1.0
288 + 4) Igor Pavlov, as the author of this code, expressly permits you to
289 + statically or dynamically link your code (or bind by name) to this file,
290 + while you keep this file unmodified.
298 +typedef UInt32 CLzRef;
300 +typedef struct _CMatchFinder
308 + UInt32 cyclicBufferPos;
309 + UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
311 + UInt32 matchMaxLen;
318 + ISeqInStream *stream;
319 + int streamEndWasReached;
322 + UInt32 keepSizeBefore;
323 + UInt32 keepSizeAfter;
325 + UInt32 numHashBytes;
328 + /* int skipModeBits; */
330 + UInt32 historySize;
331 + UInt32 fixedHashSize;
332 + UInt32 hashSizeSum;
338 +#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
339 +#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
341 +#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
343 +int MatchFinder_NeedMove(CMatchFinder *p);
344 +Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
345 +void MatchFinder_MoveBlock(CMatchFinder *p);
346 +void MatchFinder_ReadIfRequired(CMatchFinder *p);
348 +void MatchFinder_Construct(CMatchFinder *p);
351 + historySize <= 3 GB
352 + keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
354 +int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
355 + UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
357 +void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
358 +void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
359 +void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
361 +UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
362 + UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
363 + UInt32 *distances, UInt32 maxLen);
367 + Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
368 + Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
371 +typedef void (*Mf_Init_Func)(void *object);
372 +typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
373 +typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
374 +typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
375 +typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
376 +typedef void (*Mf_Skip_Func)(void *object, UInt32);
378 +typedef struct _IMatchFinder
381 + Mf_GetIndexByte_Func GetIndexByte;
382 + Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
383 + Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
384 + Mf_GetMatches_Func GetMatches;
388 +void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
390 +void MatchFinder_Init(CMatchFinder *p);
391 +UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
392 +UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
393 +void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
394 +void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
398 +++ b/include/linux/lzma/LzHash.h
400 +/* LzHash.h -- HASH functions for LZ algorithms
402 +Copyright (c) 1999-2008 Igor Pavlov
403 +Read LzFind.h for license options */
408 +#define kHash2Size (1 << 10)
409 +#define kHash3Size (1 << 16)
410 +#define kHash4Size (1 << 20)
412 +#define kFix3HashSize (kHash2Size)
413 +#define kFix4HashSize (kHash2Size + kHash3Size)
414 +#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
416 +#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8);
418 +#define HASH3_CALC { \
419 + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
420 + hash2Value = temp & (kHash2Size - 1); \
421 + hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
423 +#define HASH4_CALC { \
424 + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
425 + hash2Value = temp & (kHash2Size - 1); \
426 + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
427 + hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
429 +#define HASH5_CALC { \
430 + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
431 + hash2Value = temp & (kHash2Size - 1); \
432 + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
433 + hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \
434 + hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \
435 + hash4Value &= (kHash4Size - 1); }
437 +/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
438 +#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
441 +#define MT_HASH2_CALC \
442 + hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
444 +#define MT_HASH3_CALC { \
445 + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
446 + hash2Value = temp & (kHash2Size - 1); \
447 + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
449 +#define MT_HASH4_CALC { \
450 + UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
451 + hash2Value = temp & (kHash2Size - 1); \
452 + hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
453 + hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
457 +++ b/include/linux/lzma/LzmaDec.h
459 +/* LzmaDec.h -- LZMA Decoder
461 +Copyright (c) 1999-2008 Igor Pavlov
462 +You can use any of the following license options:
463 + 1) GNU Lesser General Public License (GNU LGPL)
464 + 2) Common Public License (CPL)
465 + 3) Common Development and Distribution License (CDDL) Version 1.0
466 + 4) Igor Pavlov, as the author of this code, expressly permits you to
467 + statically or dynamically link your code (or bind by name) to this file,
468 + while you keep this file unmodified.
476 +/* #define _LZMA_PROB32 */
477 +/* _LZMA_PROB32 can increase the speed on some CPUs,
478 + but memory usage for CLzmaDec::probs will be doubled in that case */
481 +#define CLzmaProb UInt32
483 +#define CLzmaProb UInt16
487 +/* ---------- LZMA Properties ---------- */
489 +#define LZMA_PROPS_SIZE 5
491 +typedef struct _CLzmaProps
493 + unsigned lc, lp, pb;
497 +/* LzmaProps_Decode - decodes properties
500 + SZ_ERROR_UNSUPPORTED - Unsupported properties
503 +SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
506 +/* ---------- LZMA Decoder state ---------- */
508 +/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case.
509 + Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */
511 +#define LZMA_REQUIRED_INPUT_MAX 20
519 + UInt32 range, code;
522 + UInt32 processedPos;
523 + UInt32 checkDicSize;
526 + unsigned remainLen;
530 + unsigned tempBufSize;
531 + Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
534 +#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
536 +void LzmaDec_Init(CLzmaDec *p);
538 +/* There are two types of LZMA streams:
539 + 0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
540 + 1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
544 + LZMA_FINISH_ANY, /* finish at any point */
545 + LZMA_FINISH_END /* block must be finished at the end */
548 +/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
550 + You must use LZMA_FINISH_END, when you know that current output buffer
551 + covers last bytes of block. In other cases you must use LZMA_FINISH_ANY.
553 + If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK,
554 + and output value of destLen will be less than output buffer size limit.
555 + You can check status result also.
557 + You can use multiple checks to test data integrity after full decompression:
558 + 1) Check Result and "status" variable.
559 + 2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize.
560 + 3) Check that output(srcLen) = compressedSize, if you know real compressedSize.
561 + You must use correct finish mode in that case. */
565 + LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */
566 + LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */
567 + LZMA_STATUS_NOT_FINISHED, /* stream was not finished */
568 + LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */
569 + LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */
572 +/* ELzmaStatus is used only as output value for function call */
575 +/* ---------- Interfaces ---------- */
577 +/* There are 3 levels of interfaces:
578 + 1) Dictionary Interface
579 + 2) Buffer Interface
580 + 3) One Call Interface
581 + You can select any of these interfaces, but don't mix functions from different
582 + groups for same object. */
585 +/* There are two variants to allocate state for Dictionary Interface:
586 + 1) LzmaDec_Allocate / LzmaDec_Free
587 + 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
588 + You can use variant 2, if you set dictionary buffer manually.
589 + For Buffer Interface you must always use variant 1.
591 +LzmaDec_Allocate* can return:
593 + SZ_ERROR_MEM - Memory allocation error
594 + SZ_ERROR_UNSUPPORTED - Unsupported properties
597 +SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
598 +void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
600 +SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
601 +void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
603 +/* ---------- Dictionary Interface ---------- */
605 +/* You can use it, if you want to eliminate the overhead for data copying from
606 + dictionary to some other external buffer.
607 + You must work with CLzmaDec variables directly in this interface.
612 + for (each new stream)
615 + while (it needs more decompression)
617 + LzmaDec_DecodeToDic()
618 + use data from CLzmaDec::dic and update CLzmaDec::dicPos
624 +/* LzmaDec_DecodeToDic
626 + The decoding to internal dictionary buffer (CLzmaDec::dic).
627 + You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
630 + It has meaning only if the decoding reaches output limit (dicLimit).
631 + LZMA_FINISH_ANY - Decode just dicLimit bytes.
632 + LZMA_FINISH_END - Stream must be finished after dicLimit.
637 + LZMA_STATUS_FINISHED_WITH_MARK
638 + LZMA_STATUS_NOT_FINISHED
639 + LZMA_STATUS_NEEDS_MORE_INPUT
640 + LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
641 + SZ_ERROR_DATA - Data error
644 +SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
645 + const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
648 +/* ---------- Buffer Interface ---------- */
650 +/* It's zlib-like interface.
651 + See LzmaDec_DecodeToDic description for information about STEPS and return results,
652 + but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
653 + to work with CLzmaDec variables manually.
656 + It has meaning only if the decoding reaches output limit (*destLen).
657 + LZMA_FINISH_ANY - Decode just destLen bytes.
658 + LZMA_FINISH_END - Stream must be finished after (*destLen).
661 +SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
662 + const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
665 +/* ---------- One Call Interface ---------- */
670 + It has meaning only if the decoding reaches output limit (*destLen).
671 + LZMA_FINISH_ANY - Decode just destLen bytes.
672 + LZMA_FINISH_END - Stream must be finished after (*destLen).
677 + LZMA_STATUS_FINISHED_WITH_MARK
678 + LZMA_STATUS_NOT_FINISHED
679 + LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
680 + SZ_ERROR_DATA - Data error
681 + SZ_ERROR_MEM - Memory allocation error
682 + SZ_ERROR_UNSUPPORTED - Unsupported properties
683 + SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
686 +SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
687 + const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
688 + ELzmaStatus *status, ISzAlloc *alloc);
692 +++ b/include/linux/lzma/LzmaEnc.h
694 +/* LzmaEnc.h -- LZMA Encoder
696 +Copyright (c) 1999-2008 Igor Pavlov
697 +Read LzFind.h for license options */
704 +#define LZMA_PROPS_SIZE 5
706 +typedef struct _CLzmaEncProps
708 + int level; /* 0 <= level <= 9 */
709 + UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
710 + (1 << 12) <= dictSize <= (1 << 30) for 64-bit version
711 + default = (1 << 24) */
712 + int lc; /* 0 <= lc <= 8, default = 3 */
713 + int lp; /* 0 <= lp <= 4, default = 0 */
714 + int pb; /* 0 <= pb <= 4, default = 2 */
715 + int algo; /* 0 - fast, 1 - normal, default = 1 */
716 + int fb; /* 5 <= fb <= 273, default = 32 */
717 + int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
718 + int numHashBytes; /* 2, 3 or 4, default = 4 */
719 + UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */
720 + unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
721 + int numThreads; /* 1 or 2, default = 2 */
724 +void LzmaEncProps_Init(CLzmaEncProps *p);
725 +void LzmaEncProps_Normalize(CLzmaEncProps *p);
726 +UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
729 +/* ---------- CLzmaEncHandle Interface ---------- */
731 +/* LzmaEnc_* functions can return the following exit codes:
734 + SZ_ERROR_MEM - Memory allocation error
735 + SZ_ERROR_PARAM - Incorrect paramater in props
736 + SZ_ERROR_WRITE - Write callback error.
737 + SZ_ERROR_PROGRESS - some break from progress callback
738 + SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
741 +typedef void * CLzmaEncHandle;
743 +CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);
744 +void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
745 +SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
746 +SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
747 +SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
748 + ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
749 +SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
750 + int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
752 +/* ---------- One Call Interface ---------- */
757 + SZ_ERROR_MEM - Memory allocation error
758 + SZ_ERROR_PARAM - Incorrect paramater
759 + SZ_ERROR_OUTPUT_EOF - output buffer overflow
760 + SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
763 +SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
764 + const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
765 + ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
769 +++ b/include/linux/lzma/Types.h
771 +/* Types.h -- Basic types
776 +#ifndef __7Z_TYPES_H
777 +#define __7Z_TYPES_H
781 +#define SZ_ERROR_DATA 1
782 +#define SZ_ERROR_MEM 2
783 +#define SZ_ERROR_CRC 3
784 +#define SZ_ERROR_UNSUPPORTED 4
785 +#define SZ_ERROR_PARAM 5
786 +#define SZ_ERROR_INPUT_EOF 6
787 +#define SZ_ERROR_OUTPUT_EOF 7
788 +#define SZ_ERROR_READ 8
789 +#define SZ_ERROR_WRITE 9
790 +#define SZ_ERROR_PROGRESS 10
791 +#define SZ_ERROR_FAIL 11
792 +#define SZ_ERROR_THREAD 12
794 +#define SZ_ERROR_ARCHIVE 16
795 +#define SZ_ERROR_NO_ARCHIVE 17
800 +#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
803 +typedef unsigned char Byte;
804 +typedef short Int16;
805 +typedef unsigned short UInt16;
807 +#ifdef _LZMA_UINT32_IS_ULONG
809 +typedef unsigned long UInt32;
812 +typedef unsigned int UInt32;
815 +/* #define _SZ_NO_INT_64 */
816 +/* define it if your compiler doesn't support 64-bit integers */
818 +#ifdef _SZ_NO_INT_64
821 +typedef unsigned long UInt64;
825 +#if defined(_MSC_VER) || defined(__BORLANDC__)
826 +typedef __int64 Int64;
827 +typedef unsigned __int64 UInt64;
829 +typedef long long int Int64;
830 +typedef unsigned long long int UInt64;
835 +#ifdef _LZMA_NO_SYSTEM_SIZE_T
836 +typedef UInt32 SizeT;
839 +typedef size_t SizeT;
849 +#if _MSC_VER >= 1300
850 +#define MY_NO_INLINE __declspec(noinline)
852 +#define MY_NO_INLINE
855 +#define MY_CDECL __cdecl
856 +#define MY_STD_CALL __stdcall
857 +#define MY_FAST_CALL MY_NO_INLINE __fastcall
863 +#define MY_FAST_CALL
868 +/* The following interfaces use first parameter as pointer to structure */
872 + SRes (*Read)(void *p, void *buf, size_t *size);
873 + /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
874 + (output(*size) < input(*size)) is allowed */
879 + size_t (*Write)(void *p, const void *buf, size_t size);
880 + /* Returns: result - the number of actually written bytes.
881 + (result < size) means error */
886 + SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
887 + /* Returns: result. (result != SZ_OK) means break.
888 + Value (UInt64)(Int64)-1 for size means unknown value. */
889 +} ICompressProgress;
893 + void *(*Alloc)(void *p, size_t size);
894 + void (*Free)(void *p, void *address); /* address can be 0 */
897 +#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
898 +#define IAlloc_Free(p, a) (p)->Free((p), a)
904 +/* LzFind.c -- Match finder for LZ algorithms
906 +Copyright (c) 1999-2008 Igor Pavlov
907 +Read LzFind.h for license options */
914 +#define kEmptyHashValue 0
915 +#define kMaxValForNormalize ((UInt32)0xFFFFFFFF)
916 +#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
917 +#define kNormalizeMask (~(kNormalizeStepMin - 1))
918 +#define kMaxHistorySize ((UInt32)3 << 30)
920 +#define kStartMaxLen 3
922 +static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
924 + if (!p->directInput)
926 + alloc->Free(alloc, p->bufferBase);
931 +/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
933 +static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc)
935 + UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
936 + if (p->directInput)
938 + p->blockSize = blockSize;
941 + if (p->bufferBase == 0 || p->blockSize != blockSize)
943 + LzInWindow_Free(p, alloc);
944 + p->blockSize = blockSize;
945 + p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize);
947 + return (p->bufferBase != 0);
950 +Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
951 +Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
953 +UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
955 +void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
957 + p->posLimit -= subValue;
958 + p->pos -= subValue;
959 + p->streamPos -= subValue;
962 +static void MatchFinder_ReadBlock(CMatchFinder *p)
964 + if (p->streamEndWasReached || p->result != SZ_OK)
968 + Byte *dest = p->buffer + (p->streamPos - p->pos);
969 + size_t size = (p->bufferBase + p->blockSize - dest);
972 + p->result = p->stream->Read(p->stream, dest, &size);
973 + if (p->result != SZ_OK)
977 + p->streamEndWasReached = 1;
980 + p->streamPos += (UInt32)size;
981 + if (p->streamPos - p->pos > p->keepSizeAfter)
986 +void MatchFinder_MoveBlock(CMatchFinder *p)
988 + memmove(p->bufferBase,
989 + p->buffer - p->keepSizeBefore,
990 + (size_t)(p->streamPos - p->pos + p->keepSizeBefore));
991 + p->buffer = p->bufferBase + p->keepSizeBefore;
994 +int MatchFinder_NeedMove(CMatchFinder *p)
996 + /* if (p->streamEndWasReached) return 0; */
997 + return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
1000 +void MatchFinder_ReadIfRequired(CMatchFinder *p)
1002 + if (p->streamEndWasReached)
1004 + if (p->keepSizeAfter >= p->streamPos - p->pos)
1005 + MatchFinder_ReadBlock(p);
1008 +static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
1010 + if (MatchFinder_NeedMove(p))
1011 + MatchFinder_MoveBlock(p);
1012 + MatchFinder_ReadBlock(p);
1015 +static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
1019 + p->numHashBytes = 4;
1020 + /* p->skipModeBits = 0; */
1021 + p->directInput = 0;
1025 +#define kCrcPoly 0xEDB88320
1027 +void MatchFinder_Construct(CMatchFinder *p)
1030 + p->bufferBase = 0;
1031 + p->directInput = 0;
1033 + MatchFinder_SetDefaultSettings(p);
1035 + for (i = 0; i < 256; i++)
1039 + for (j = 0; j < 8; j++)
1040 + r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
1045 +static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
1047 + alloc->Free(alloc, p->hash);
1051 +void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
1053 + MatchFinder_FreeThisClassMemory(p, alloc);
1054 + LzInWindow_Free(p, alloc);
1057 +static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc)
1059 + size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
1060 + if (sizeInBytes / sizeof(CLzRef) != num)
1062 + return (CLzRef *)alloc->Alloc(alloc, sizeInBytes);
1065 +int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
1066 + UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
1069 + UInt32 sizeReserv;
1070 + if (historySize > kMaxHistorySize)
1072 + MatchFinder_Free(p, alloc);
1075 + sizeReserv = historySize >> 1;
1076 + if (historySize > ((UInt32)2 << 30))
1077 + sizeReserv = historySize >> 2;
1078 + sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
1080 + p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
1081 + p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
1082 + /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
1083 + if (LzInWindow_Create(p, sizeReserv, alloc))
1085 + UInt32 newCyclicBufferSize = (historySize /* >> p->skipModeBits */) + 1;
1087 + p->matchMaxLen = matchMaxLen;
1089 + p->fixedHashSize = 0;
1090 + if (p->numHashBytes == 2)
1091 + hs = (1 << 16) - 1;
1094 + hs = historySize - 1;
1100 + /* hs >>= p->skipModeBits; */
1101 + hs |= 0xFFFF; /* don't change it! It's required for Deflate */
1102 + if (hs > (1 << 24))
1104 + if (p->numHashBytes == 3)
1105 + hs = (1 << 24) - 1;
1112 + if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size;
1113 + if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size;
1114 + if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size;
1115 + hs += p->fixedHashSize;
1119 + UInt32 prevSize = p->hashSizeSum + p->numSons;
1121 + p->historySize = historySize;
1122 + p->hashSizeSum = hs;
1123 + p->cyclicBufferSize = newCyclicBufferSize;
1124 + p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
1125 + newSize = p->hashSizeSum + p->numSons;
1126 + if (p->hash != 0 && prevSize == newSize)
1128 + MatchFinder_FreeThisClassMemory(p, alloc);
1129 + p->hash = AllocRefs(newSize, alloc);
1132 + p->son = p->hash + p->hashSizeSum;
1137 + MatchFinder_Free(p, alloc);
1141 +static void MatchFinder_SetLimits(CMatchFinder *p)
1143 + UInt32 limit = kMaxValForNormalize - p->pos;
1144 + UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
1145 + if (limit2 < limit)
1147 + limit2 = p->streamPos - p->pos;
1148 + if (limit2 <= p->keepSizeAfter)
1154 + limit2 -= p->keepSizeAfter;
1155 + if (limit2 < limit)
1158 + UInt32 lenLimit = p->streamPos - p->pos;
1159 + if (lenLimit > p->matchMaxLen)
1160 + lenLimit = p->matchMaxLen;
1161 + p->lenLimit = lenLimit;
1163 + p->posLimit = p->pos + limit;
1166 +void MatchFinder_Init(CMatchFinder *p)
1169 + for(i = 0; i < p->hashSizeSum; i++)
1170 + p->hash[i] = kEmptyHashValue;
1171 + p->cyclicBufferPos = 0;
1172 + p->buffer = p->bufferBase;
1173 + p->pos = p->streamPos = p->cyclicBufferSize;
1174 + p->result = SZ_OK;
1175 + p->streamEndWasReached = 0;
1176 + MatchFinder_ReadBlock(p);
1177 + MatchFinder_SetLimits(p);
1180 +static UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
1182 + return (p->pos - p->historySize - 1) & kNormalizeMask;
1185 +void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
1188 + for (i = 0; i < numItems; i++)
1190 + UInt32 value = items[i];
1191 + if (value <= subValue)
1192 + value = kEmptyHashValue;
1194 + value -= subValue;
1199 +static void MatchFinder_Normalize(CMatchFinder *p)
1201 + UInt32 subValue = MatchFinder_GetSubValue(p);
1202 + MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
1203 + MatchFinder_ReduceOffsets(p, subValue);
1206 +static void MatchFinder_CheckLimits(CMatchFinder *p)
1208 + if (p->pos == kMaxValForNormalize)
1209 + MatchFinder_Normalize(p);
1210 + if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
1211 + MatchFinder_CheckAndMoveAndRead(p);
1212 + if (p->cyclicBufferPos == p->cyclicBufferSize)
1213 + p->cyclicBufferPos = 0;
1214 + MatchFinder_SetLimits(p);
1217 +static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
1218 + UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
1219 + UInt32 *distances, UInt32 maxLen)
1221 + son[_cyclicBufferPos] = curMatch;
1224 + UInt32 delta = pos - curMatch;
1225 + if (cutValue-- == 0 || delta >= _cyclicBufferSize)
1228 + const Byte *pb = cur - delta;
1229 + curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
1230 + if (pb[maxLen] == cur[maxLen] && *pb == *cur)
1233 + while(++len != lenLimit)
1234 + if (pb[len] != cur[len])
1238 + *distances++ = maxLen = len;
1239 + *distances++ = delta - 1;
1240 + if (len == lenLimit)
1248 +UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
1249 + UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
1250 + UInt32 *distances, UInt32 maxLen)
1252 + CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
1253 + CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
1254 + UInt32 len0 = 0, len1 = 0;
1257 + UInt32 delta = pos - curMatch;
1258 + if (cutValue-- == 0 || delta >= _cyclicBufferSize)
1260 + *ptr0 = *ptr1 = kEmptyHashValue;
1264 + CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
1265 + const Byte *pb = cur - delta;
1266 + UInt32 len = (len0 < len1 ? len0 : len1);
1267 + if (pb[len] == cur[len])
1269 + if (++len != lenLimit && pb[len] == cur[len])
1270 + while(++len != lenLimit)
1271 + if (pb[len] != cur[len])
1275 + *distances++ = maxLen = len;
1276 + *distances++ = delta - 1;
1277 + if (len == lenLimit)
1285 + if (pb[len] < cur[len])
1303 +static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
1304 + UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue)
1306 + CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
1307 + CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
1308 + UInt32 len0 = 0, len1 = 0;
1311 + UInt32 delta = pos - curMatch;
1312 + if (cutValue-- == 0 || delta >= _cyclicBufferSize)
1314 + *ptr0 = *ptr1 = kEmptyHashValue;
1318 + CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
1319 + const Byte *pb = cur - delta;
1320 + UInt32 len = (len0 < len1 ? len0 : len1);
1321 + if (pb[len] == cur[len])
1323 + while(++len != lenLimit)
1324 + if (pb[len] != cur[len])
1327 + if (len == lenLimit)
1335 + if (pb[len] < cur[len])
1354 + ++p->cyclicBufferPos; \
1356 + if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p);
1358 +#define MOVE_POS_RET MOVE_POS return offset;
1360 +static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
1362 +#define GET_MATCHES_HEADER2(minLen, ret_op) \
1363 + UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \
1364 + lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
1367 +#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
1368 +#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue)
1370 +#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
1372 +#define GET_MATCHES_FOOTER(offset, maxLen) \
1373 + offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \
1374 + distances + offset, maxLen) - distances); MOVE_POS_RET;
1376 +#define SKIP_FOOTER \
1377 + SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
1379 +static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1382 + GET_MATCHES_HEADER(2)
1384 + curMatch = p->hash[hashValue];
1385 + p->hash[hashValue] = p->pos;
1387 + GET_MATCHES_FOOTER(offset, 1)
1390 +UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1393 + GET_MATCHES_HEADER(3)
1395 + curMatch = p->hash[hashValue];
1396 + p->hash[hashValue] = p->pos;
1398 + GET_MATCHES_FOOTER(offset, 2)
1401 +static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1403 + UInt32 hash2Value, delta2, maxLen, offset;
1404 + GET_MATCHES_HEADER(3)
1408 + delta2 = p->pos - p->hash[hash2Value];
1409 + curMatch = p->hash[kFix3HashSize + hashValue];
1411 + p->hash[hash2Value] =
1412 + p->hash[kFix3HashSize + hashValue] = p->pos;
1417 + if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
1419 + for (; maxLen != lenLimit; maxLen++)
1420 + if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
1422 + distances[0] = maxLen;
1423 + distances[1] = delta2 - 1;
1425 + if (maxLen == lenLimit)
1427 + SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
1431 + GET_MATCHES_FOOTER(offset, maxLen)
1434 +static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1436 + UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
1437 + GET_MATCHES_HEADER(4)
1441 + delta2 = p->pos - p->hash[ hash2Value];
1442 + delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
1443 + curMatch = p->hash[kFix4HashSize + hashValue];
1445 + p->hash[ hash2Value] =
1446 + p->hash[kFix3HashSize + hash3Value] =
1447 + p->hash[kFix4HashSize + hashValue] = p->pos;
1451 + if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
1453 + distances[0] = maxLen = 2;
1454 + distances[1] = delta2 - 1;
1457 + if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
1460 + distances[offset + 1] = delta3 - 1;
1466 + for (; maxLen != lenLimit; maxLen++)
1467 + if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
1469 + distances[offset - 2] = maxLen;
1470 + if (maxLen == lenLimit)
1472 + SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
1478 + GET_MATCHES_FOOTER(offset, maxLen)
1481 +static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1483 + UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
1484 + GET_MATCHES_HEADER(4)
1488 + delta2 = p->pos - p->hash[ hash2Value];
1489 + delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
1490 + curMatch = p->hash[kFix4HashSize + hashValue];
1492 + p->hash[ hash2Value] =
1493 + p->hash[kFix3HashSize + hash3Value] =
1494 + p->hash[kFix4HashSize + hashValue] = p->pos;
1498 + if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
1500 + distances[0] = maxLen = 2;
1501 + distances[1] = delta2 - 1;
1504 + if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
1507 + distances[offset + 1] = delta3 - 1;
1513 + for (; maxLen != lenLimit; maxLen++)
1514 + if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
1516 + distances[offset - 2] = maxLen;
1517 + if (maxLen == lenLimit)
1519 + p->son[p->cyclicBufferPos] = curMatch;
1525 + offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
1526 + distances + offset, maxLen) - (distances));
1530 +UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
1533 + GET_MATCHES_HEADER(3)
1535 + curMatch = p->hash[hashValue];
1536 + p->hash[hashValue] = p->pos;
1537 + offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
1538 + distances, 2) - (distances));
1542 +static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1548 + curMatch = p->hash[hashValue];
1549 + p->hash[hashValue] = p->pos;
1552 + while (--num != 0);
1555 +void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1561 + curMatch = p->hash[hashValue];
1562 + p->hash[hashValue] = p->pos;
1565 + while (--num != 0);
1568 +static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1572 + UInt32 hash2Value;
1575 + curMatch = p->hash[kFix3HashSize + hashValue];
1576 + p->hash[hash2Value] =
1577 + p->hash[kFix3HashSize + hashValue] = p->pos;
1580 + while (--num != 0);
1583 +static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1587 + UInt32 hash2Value, hash3Value;
1590 + curMatch = p->hash[kFix4HashSize + hashValue];
1591 + p->hash[ hash2Value] =
1592 + p->hash[kFix3HashSize + hash3Value] = p->pos;
1593 + p->hash[kFix4HashSize + hashValue] = p->pos;
1596 + while (--num != 0);
1599 +static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1603 + UInt32 hash2Value, hash3Value;
1606 + curMatch = p->hash[kFix4HashSize + hashValue];
1607 + p->hash[ hash2Value] =
1608 + p->hash[kFix3HashSize + hash3Value] =
1609 + p->hash[kFix4HashSize + hashValue] = p->pos;
1610 + p->son[p->cyclicBufferPos] = curMatch;
1613 + while (--num != 0);
1616 +void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
1622 + curMatch = p->hash[hashValue];
1623 + p->hash[hashValue] = p->pos;
1624 + p->son[p->cyclicBufferPos] = curMatch;
1627 + while (--num != 0);
1630 +void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
1632 + vTable->Init = (Mf_Init_Func)MatchFinder_Init;
1633 + vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
1634 + vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
1635 + vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
1638 + vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
1639 + vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
1641 + else if (p->numHashBytes == 2)
1643 + vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
1644 + vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
1646 + else if (p->numHashBytes == 3)
1648 + vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
1649 + vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
1653 + vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
1654 + vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
1658 +++ b/lzma/LzmaDec.c
1660 +/* LzmaDec.c -- LZMA Decoder
1662 +Copyright (c) 1999-2008 Igor Pavlov
1663 +Read LzmaDec.h for license options */
1665 +#include "LzmaDec.h"
1667 +#include <string.h>
1669 +#define kNumTopBits 24
1670 +#define kTopValue ((UInt32)1 << kNumTopBits)
1672 +#define kNumBitModelTotalBits 11
1673 +#define kBitModelTotal (1 << kNumBitModelTotalBits)
1674 +#define kNumMoveBits 5
1676 +#define RC_INIT_SIZE 5
1678 +#define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); }
1680 +#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
1681 +#define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));
1682 +#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits));
1683 +#define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \
1684 + { UPDATE_0(p); i = (i + i); A0; } else \
1685 + { UPDATE_1(p); i = (i + i) + 1; A1; }
1686 +#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;)
1688 +#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); }
1689 +#define TREE_DECODE(probs, limit, i) \
1690 + { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; }
1692 +/* #define _LZMA_SIZE_OPT */
1694 +#ifdef _LZMA_SIZE_OPT
1695 +#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i)
1697 +#define TREE_6_DECODE(probs, i) \
1699 + TREE_GET_BIT(probs, i); \
1700 + TREE_GET_BIT(probs, i); \
1701 + TREE_GET_BIT(probs, i); \
1702 + TREE_GET_BIT(probs, i); \
1703 + TREE_GET_BIT(probs, i); \
1704 + TREE_GET_BIT(probs, i); \
1708 +#define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); }
1710 +#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
1711 +#define UPDATE_0_CHECK range = bound;
1712 +#define UPDATE_1_CHECK range -= bound; code -= bound;
1713 +#define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \
1714 + { UPDATE_0_CHECK; i = (i + i); A0; } else \
1715 + { UPDATE_1_CHECK; i = (i + i) + 1; A1; }
1716 +#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;)
1717 +#define TREE_DECODE_CHECK(probs, limit, i) \
1718 + { i = 1; do { GET_BIT_CHECK(probs + i, i) } while(i < limit); i -= limit; }
1721 +#define kNumPosBitsMax 4
1722 +#define kNumPosStatesMax (1 << kNumPosBitsMax)
1724 +#define kLenNumLowBits 3
1725 +#define kLenNumLowSymbols (1 << kLenNumLowBits)
1726 +#define kLenNumMidBits 3
1727 +#define kLenNumMidSymbols (1 << kLenNumMidBits)
1728 +#define kLenNumHighBits 8
1729 +#define kLenNumHighSymbols (1 << kLenNumHighBits)
1731 +#define LenChoice 0
1732 +#define LenChoice2 (LenChoice + 1)
1733 +#define LenLow (LenChoice2 + 1)
1734 +#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
1735 +#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
1736 +#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
1739 +#define kNumStates 12
1740 +#define kNumLitStates 7
1742 +#define kStartPosModelIndex 4
1743 +#define kEndPosModelIndex 14
1744 +#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
1746 +#define kNumPosSlotBits 6
1747 +#define kNumLenToPosStates 4
1749 +#define kNumAlignBits 4
1750 +#define kAlignTableSize (1 << kNumAlignBits)
1752 +#define kMatchMinLen 2
1753 +#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
1756 +#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
1757 +#define IsRepG0 (IsRep + kNumStates)
1758 +#define IsRepG1 (IsRepG0 + kNumStates)
1759 +#define IsRepG2 (IsRepG1 + kNumStates)
1760 +#define IsRep0Long (IsRepG2 + kNumStates)
1761 +#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
1762 +#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
1763 +#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
1764 +#define LenCoder (Align + kAlignTableSize)
1765 +#define RepLenCoder (LenCoder + kNumLenProbs)
1766 +#define Literal (RepLenCoder + kNumLenProbs)
1768 +#define LZMA_BASE_SIZE 1846
1769 +#define LZMA_LIT_SIZE 768
1771 +#define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
1773 +#if Literal != LZMA_BASE_SIZE
1774 +StopCompilingDueBUG
1778 +#define LZMA_STREAM_WAS_FINISHED_ID (-1)
1779 +#define LZMA_SPEC_LEN_OFFSET (-3)
1782 +Byte kLiteralNextStates[kNumStates * 2] =
1784 + 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5,
1785 + 7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10
1788 +#define LZMA_DIC_MIN (1 << 12)
1790 +/* First LZMA-symbol is always decoded.
1791 +And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization
1797 + < kMatchSpecLenStart : normal remain
1798 + = kMatchSpecLenStart : finished
1799 + = kMatchSpecLenStart + 1 : Flush marker
1800 + = kMatchSpecLenStart + 2 : State Init Marker
1803 +static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
1805 + CLzmaProb *probs = p->probs;
1807 + unsigned state = p->state;
1808 + UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];
1809 + unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;
1810 + unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;
1811 + unsigned lc = p->prop.lc;
1813 + Byte *dic = p->dic;
1814 + SizeT dicBufSize = p->dicBufSize;
1815 + SizeT dicPos = p->dicPos;
1817 + UInt32 processedPos = p->processedPos;
1818 + UInt32 checkDicSize = p->checkDicSize;
1821 + const Byte *buf = p->buf;
1822 + UInt32 range = p->range;
1823 + UInt32 code = p->code;
1830 + unsigned posState = processedPos & pbMask;
1832 + prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
1837 + prob = probs + Literal;
1838 + if (checkDicSize != 0 || processedPos != 0)
1839 + prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +
1840 + (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
1842 + if (state < kNumLitStates)
1845 + do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);
1849 + unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
1850 + unsigned offs = 0x100;
1855 + CLzmaProb *probLit;
1857 + bit = (matchByte & offs);
1858 + probLit = prob + offs + bit + symbol;
1859 + GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
1861 + while (symbol < 0x100);
1863 + dic[dicPos++] = (Byte)symbol;
1866 + state = kLiteralNextStates[state];
1867 + /* if (state < 4) state = 0; else if (state < 10) state -= 3; else state -= 6; */
1873 + prob = probs + IsRep + state;
1877 + state += kNumStates;
1878 + prob = probs + LenCoder;
1883 + if (checkDicSize == 0 && processedPos == 0)
1884 + return SZ_ERROR_DATA;
1885 + prob = probs + IsRepG0 + state;
1889 + prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
1893 + dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
1896 + state = state < kNumLitStates ? 9 : 11;
1905 + prob = probs + IsRepG1 + state;
1914 + prob = probs + IsRepG2 + state;
1931 + state = state < kNumLitStates ? 8 : 11;
1932 + prob = probs + RepLenCoder;
1935 + unsigned limit, offset;
1936 + CLzmaProb *probLen = prob + LenChoice;
1939 + UPDATE_0(probLen);
1940 + probLen = prob + LenLow + (posState << kLenNumLowBits);
1942 + limit = (1 << kLenNumLowBits);
1946 + UPDATE_1(probLen);
1947 + probLen = prob + LenChoice2;
1950 + UPDATE_0(probLen);
1951 + probLen = prob + LenMid + (posState << kLenNumMidBits);
1952 + offset = kLenNumLowSymbols;
1953 + limit = (1 << kLenNumMidBits);
1957 + UPDATE_1(probLen);
1958 + probLen = prob + LenHigh;
1959 + offset = kLenNumLowSymbols + kLenNumMidSymbols;
1960 + limit = (1 << kLenNumHighBits);
1963 + TREE_DECODE(probLen, limit, len);
1967 + if (state >= kNumStates)
1970 + prob = probs + PosSlot +
1971 + ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits);
1972 + TREE_6_DECODE(prob, distance);
1973 + if (distance >= kStartPosModelIndex)
1975 + unsigned posSlot = (unsigned)distance;
1976 + int numDirectBits = (int)(((distance >> 1) - 1));
1977 + distance = (2 | (distance & 1));
1978 + if (posSlot < kEndPosModelIndex)
1980 + distance <<= numDirectBits;
1981 + prob = probs + SpecPos + distance - posSlot - 1;
1987 + GET_BIT2(prob + i, i, ; , distance |= mask);
1990 + while(--numDirectBits != 0);
1995 + numDirectBits -= kNumAlignBits;
2004 + t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */
2005 + distance = (distance << 1) + (t + 1);
2006 + code += range & t;
2010 + if (code >= range)
2017 + while (--numDirectBits != 0);
2018 + prob = probs + Align;
2019 + distance <<= kNumAlignBits;
2022 + GET_BIT2(prob + i, i, ; , distance |= 1);
2023 + GET_BIT2(prob + i, i, ; , distance |= 2);
2024 + GET_BIT2(prob + i, i, ; , distance |= 4);
2025 + GET_BIT2(prob + i, i, ; , distance |= 8);
2027 + if (distance == (UInt32)0xFFFFFFFF)
2029 + len += kMatchSpecLenStart;
2030 + state -= kNumStates;
2038 + rep0 = distance + 1;
2039 + if (checkDicSize == 0)
2041 + if (distance >= processedPos)
2042 + return SZ_ERROR_DATA;
2044 + else if (distance >= checkDicSize)
2045 + return SZ_ERROR_DATA;
2046 + state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
2047 + /* state = kLiteralNextStates[state]; */
2050 + len += kMatchMinLen;
2053 + SizeT rem = limit - dicPos;
2054 + unsigned curLen = ((rem < len) ? (unsigned)rem : len);
2055 + SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);
2057 + processedPos += curLen;
2060 + if (pos + curLen <= dicBufSize)
2062 + Byte *dest = dic + dicPos;
2063 + ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
2064 + const Byte *lim = dest + curLen;
2067 + *(dest) = (Byte)*(dest + src);
2068 + while (++dest != lim);
2074 + dic[dicPos++] = dic[pos];
2075 + if (++pos == dicBufSize)
2078 + while (--curLen != 0);
2083 + while (dicPos < limit && buf < bufLimit);
2088 + p->remainLen = len;
2089 + p->dicPos = dicPos;
2090 + p->processedPos = processedPos;
2091 + p->reps[0] = rep0;
2092 + p->reps[1] = rep1;
2093 + p->reps[2] = rep2;
2094 + p->reps[3] = rep3;
2100 +static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
2102 + if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)
2104 + Byte *dic = p->dic;
2105 + SizeT dicPos = p->dicPos;
2106 + SizeT dicBufSize = p->dicBufSize;
2107 + unsigned len = p->remainLen;
2108 + UInt32 rep0 = p->reps[0];
2109 + if (limit - dicPos < len)
2110 + len = (unsigned)(limit - dicPos);
2112 + if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)
2113 + p->checkDicSize = p->prop.dicSize;
2115 + p->processedPos += len;
2116 + p->remainLen -= len;
2117 + while (len-- != 0)
2119 + dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
2122 + p->dicPos = dicPos;
2126 +/* LzmaDec_DecodeReal2 decodes LZMA-symbols and sets p->needFlush and p->needInit, if required. */
2128 +static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
2132 + SizeT limit2 = limit;
2133 + if (p->checkDicSize == 0)
2135 + UInt32 rem = p->prop.dicSize - p->processedPos;
2136 + if (limit - p->dicPos > rem)
2137 + limit2 = p->dicPos + rem;
2139 + RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
2140 + if (p->processedPos >= p->prop.dicSize)
2141 + p->checkDicSize = p->prop.dicSize;
2142 + LzmaDec_WriteRem(p, limit);
2144 + while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);
2146 + if (p->remainLen > kMatchSpecLenStart)
2148 + p->remainLen = kMatchSpecLenStart;
2155 + DUMMY_ERROR, /* unexpected end of input stream */
2161 +static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize)
2163 + UInt32 range = p->range;
2164 + UInt32 code = p->code;
2165 + const Byte *bufLimit = buf + inSize;
2166 + CLzmaProb *probs = p->probs;
2167 + unsigned state = p->state;
2174 + unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
2176 + prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
2177 + IF_BIT_0_CHECK(prob)
2181 + /* if (bufLimit - buf >= 7) return DUMMY_LIT; */
2183 + prob = probs + Literal;
2184 + if (p->checkDicSize != 0 || p->processedPos != 0)
2185 + prob += (LZMA_LIT_SIZE *
2186 + ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) +
2187 + (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc))));
2189 + if (state < kNumLitStates)
2191 + unsigned symbol = 1;
2192 + do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100);
2196 + unsigned matchByte = p->dic[p->dicPos - p->reps[0] +
2197 + ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];
2198 + unsigned offs = 0x100;
2199 + unsigned symbol = 1;
2203 + CLzmaProb *probLit;
2205 + bit = (matchByte & offs);
2206 + probLit = prob + offs + bit + symbol;
2207 + GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)
2209 + while (symbol < 0x100);
2218 + prob = probs + IsRep + state;
2219 + IF_BIT_0_CHECK(prob)
2223 + prob = probs + LenCoder;
2224 + res = DUMMY_MATCH;
2230 + prob = probs + IsRepG0 + state;
2231 + IF_BIT_0_CHECK(prob)
2234 + prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
2235 + IF_BIT_0_CHECK(prob)
2249 + prob = probs + IsRepG1 + state;
2250 + IF_BIT_0_CHECK(prob)
2257 + prob = probs + IsRepG2 + state;
2258 + IF_BIT_0_CHECK(prob)
2268 + state = kNumStates;
2269 + prob = probs + RepLenCoder;
2272 + unsigned limit, offset;
2273 + CLzmaProb *probLen = prob + LenChoice;
2274 + IF_BIT_0_CHECK(probLen)
2277 + probLen = prob + LenLow + (posState << kLenNumLowBits);
2279 + limit = 1 << kLenNumLowBits;
2284 + probLen = prob + LenChoice2;
2285 + IF_BIT_0_CHECK(probLen)
2288 + probLen = prob + LenMid + (posState << kLenNumMidBits);
2289 + offset = kLenNumLowSymbols;
2290 + limit = 1 << kLenNumMidBits;
2295 + probLen = prob + LenHigh;
2296 + offset = kLenNumLowSymbols + kLenNumMidSymbols;
2297 + limit = 1 << kLenNumHighBits;
2300 + TREE_DECODE_CHECK(probLen, limit, len);
2307 + prob = probs + PosSlot +
2308 + ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
2310 + TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
2311 + if (posSlot >= kStartPosModelIndex)
2313 + int numDirectBits = ((posSlot >> 1) - 1);
2315 + /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */
2317 + if (posSlot < kEndPosModelIndex)
2319 + prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1;
2323 + numDirectBits -= kNumAlignBits;
2328 + code -= range & (((code - range) >> 31) - 1);
2329 + /* if (code >= range) code -= range; */
2331 + while (--numDirectBits != 0);
2332 + prob = probs + Align;
2333 + numDirectBits = kNumAlignBits;
2339 + GET_BIT_CHECK(prob + i, i);
2341 + while(--numDirectBits != 0);
2352 +static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data)
2354 + p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]);
2355 + p->range = 0xFFFFFFFF;
2359 +void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
2363 + p->tempBufSize = 0;
2367 + p->processedPos = 0;
2368 + p->checkDicSize = 0;
2369 + p->needInitState = 1;
2372 + p->needInitState = 1;
2375 +void LzmaDec_Init(CLzmaDec *p)
2378 + LzmaDec_InitDicAndState(p, True, True);
2381 +static void LzmaDec_InitStateReal(CLzmaDec *p)
2383 + UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp));
2385 + CLzmaProb *probs = p->probs;
2386 + for (i = 0; i < numProbs; i++)
2387 + probs[i] = kBitModelTotal >> 1;
2388 + p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;
2390 + p->needInitState = 0;
2393 +SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
2394 + ELzmaFinishMode finishMode, ELzmaStatus *status)
2396 + SizeT inSize = *srcLen;
2398 + LzmaDec_WriteRem(p, dicLimit);
2400 + *status = LZMA_STATUS_NOT_SPECIFIED;
2402 + while (p->remainLen != kMatchSpecLenStart)
2404 + int checkEndMarkNow;
2406 + if (p->needFlush != 0)
2408 + for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
2409 + p->tempBuf[p->tempBufSize++] = *src++;
2410 + if (p->tempBufSize < RC_INIT_SIZE)
2412 + *status = LZMA_STATUS_NEEDS_MORE_INPUT;
2415 + if (p->tempBuf[0] != 0)
2416 + return SZ_ERROR_DATA;
2418 + LzmaDec_InitRc(p, p->tempBuf);
2419 + p->tempBufSize = 0;
2422 + checkEndMarkNow = 0;
2423 + if (p->dicPos >= dicLimit)
2425 + if (p->remainLen == 0 && p->code == 0)
2427 + *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK;
2430 + if (finishMode == LZMA_FINISH_ANY)
2432 + *status = LZMA_STATUS_NOT_FINISHED;
2435 + if (p->remainLen != 0)
2437 + *status = LZMA_STATUS_NOT_FINISHED;
2438 + return SZ_ERROR_DATA;
2440 + checkEndMarkNow = 1;
2443 + if (p->needInitState)
2444 + LzmaDec_InitStateReal(p);
2446 + if (p->tempBufSize == 0)
2449 + const Byte *bufLimit;
2450 + if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
2452 + int dummyRes = LzmaDec_TryDummy(p, src, inSize);
2453 + if (dummyRes == DUMMY_ERROR)
2455 + memcpy(p->tempBuf, src, inSize);
2456 + p->tempBufSize = (unsigned)inSize;
2457 + (*srcLen) += inSize;
2458 + *status = LZMA_STATUS_NEEDS_MORE_INPUT;
2461 + if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
2463 + *status = LZMA_STATUS_NOT_FINISHED;
2464 + return SZ_ERROR_DATA;
2469 + bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX;
2471 + if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0)
2472 + return SZ_ERROR_DATA;
2473 + processed = p->buf - src;
2474 + (*srcLen) += processed;
2476 + inSize -= processed;
2480 + unsigned rem = p->tempBufSize, lookAhead = 0;
2481 + while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize)
2482 + p->tempBuf[rem++] = src[lookAhead++];
2483 + p->tempBufSize = rem;
2484 + if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
2486 + int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);
2487 + if (dummyRes == DUMMY_ERROR)
2489 + (*srcLen) += lookAhead;
2490 + *status = LZMA_STATUS_NEEDS_MORE_INPUT;
2493 + if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
2495 + *status = LZMA_STATUS_NOT_FINISHED;
2496 + return SZ_ERROR_DATA;
2499 + p->buf = p->tempBuf;
2500 + if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)
2501 + return SZ_ERROR_DATA;
2502 + lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));
2503 + (*srcLen) += lookAhead;
2505 + inSize -= lookAhead;
2506 + p->tempBufSize = 0;
2510 + *status = LZMA_STATUS_FINISHED_WITH_MARK;
2511 + return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
2514 +SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
2516 + SizeT outSize = *destLen;
2517 + SizeT inSize = *srcLen;
2518 + *srcLen = *destLen = 0;
2521 + SizeT inSizeCur = inSize, outSizeCur, dicPos;
2522 + ELzmaFinishMode curFinishMode;
2524 + if (p->dicPos == p->dicBufSize)
2526 + dicPos = p->dicPos;
2527 + if (outSize > p->dicBufSize - dicPos)
2529 + outSizeCur = p->dicBufSize;
2530 + curFinishMode = LZMA_FINISH_ANY;
2534 + outSizeCur = dicPos + outSize;
2535 + curFinishMode = finishMode;
2538 + res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status);
2540 + inSize -= inSizeCur;
2541 + *srcLen += inSizeCur;
2542 + outSizeCur = p->dicPos - dicPos;
2543 + memcpy(dest, p->dic + dicPos, outSizeCur);
2544 + dest += outSizeCur;
2545 + outSize -= outSizeCur;
2546 + *destLen += outSizeCur;
2549 + if (outSizeCur == 0 || outSize == 0)
2554 +void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
2556 + alloc->Free(alloc, p->probs);
2560 +static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc)
2562 + alloc->Free(alloc, p->dic);
2566 +void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
2568 + LzmaDec_FreeProbs(p, alloc);
2569 + LzmaDec_FreeDict(p, alloc);
2572 +SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
2577 + if (size < LZMA_PROPS_SIZE)
2578 + return SZ_ERROR_UNSUPPORTED;
2580 + dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24);
2582 + if (dicSize < LZMA_DIC_MIN)
2583 + dicSize = LZMA_DIC_MIN;
2584 + p->dicSize = dicSize;
2587 + if (d >= (9 * 5 * 5))
2588 + return SZ_ERROR_UNSUPPORTED;
2598 +static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc)
2600 + UInt32 numProbs = LzmaProps_GetNumProbs(propNew);
2601 + if (p->probs == 0 || numProbs != p->numProbs)
2603 + LzmaDec_FreeProbs(p, alloc);
2604 + p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb));
2605 + p->numProbs = numProbs;
2606 + if (p->probs == 0)
2607 + return SZ_ERROR_MEM;
2612 +SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
2614 + CLzmaProps propNew;
2615 + RINOK(LzmaProps_Decode(&propNew, props, propsSize));
2616 + RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
2617 + p->prop = propNew;
2621 +SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
2623 + CLzmaProps propNew;
2625 + RINOK(LzmaProps_Decode(&propNew, props, propsSize));
2626 + RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
2627 + dicBufSize = propNew.dicSize;
2628 + if (p->dic == 0 || dicBufSize != p->dicBufSize)
2630 + LzmaDec_FreeDict(p, alloc);
2631 + p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);
2634 + LzmaDec_FreeProbs(p, alloc);
2635 + return SZ_ERROR_MEM;
2638 + p->dicBufSize = dicBufSize;
2639 + p->prop = propNew;
2643 +SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
2644 + const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
2645 + ELzmaStatus *status, ISzAlloc *alloc)
2649 + SizeT inSize = *srcLen;
2650 + SizeT outSize = *destLen;
2651 + *srcLen = *destLen = 0;
2652 + if (inSize < RC_INIT_SIZE)
2653 + return SZ_ERROR_INPUT_EOF;
2655 + LzmaDec_Construct(&p);
2656 + res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc);
2660 + p.dicBufSize = outSize;
2665 + res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
2667 + if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
2668 + res = SZ_ERROR_INPUT_EOF;
2670 + (*destLen) = p.dicPos;
2671 + LzmaDec_FreeProbs(&p, alloc);
2675 +++ b/lzma/LzmaEnc.c
2677 +/* LzmaEnc.c -- LZMA Encoder
2679 +Copyright (c) 1999-2008 Igor Pavlov
2680 +Read LzmaEnc.h for license options */
2682 +#if defined(SHOW_STAT) || defined(SHOW_STAT2)
2686 +#include <string.h>
2688 +#include "LzmaEnc.h"
2690 +#include "LzFind.h"
2691 +#ifdef COMPRESS_MF_MT
2692 +#include "LzFindMt.h"
2695 +/* #define SHOW_STAT */
2696 +/* #define SHOW_STAT2 */
2699 +static int ttt = 0;
2702 +#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1)
2704 +#define kBlockSize (9 << 10)
2705 +#define kUnpackBlockSize (1 << 18)
2706 +#define kMatchArraySize (1 << 21)
2707 +#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX)
2709 +#define kNumMaxDirectBits (31)
2711 +#define kNumTopBits 24
2712 +#define kTopValue ((UInt32)1 << kNumTopBits)
2714 +#define kNumBitModelTotalBits 11
2715 +#define kBitModelTotal (1 << kNumBitModelTotalBits)
2716 +#define kNumMoveBits 5
2717 +#define kProbInitValue (kBitModelTotal >> 1)
2719 +#define kNumMoveReducingBits 4
2720 +#define kNumBitPriceShiftBits 4
2721 +#define kBitPrice (1 << kNumBitPriceShiftBits)
2723 +void LzmaEncProps_Init(CLzmaEncProps *p)
2726 + p->dictSize = p->mc = 0;
2727 + p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;
2728 + p->writeEndMark = 0;
2731 +void LzmaEncProps_Normalize(CLzmaEncProps *p)
2733 + int level = p->level;
2734 + if (level < 0) level = 5;
2736 + if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26)));
2737 + if (p->lc < 0) p->lc = 3;
2738 + if (p->lp < 0) p->lp = 0;
2739 + if (p->pb < 0) p->pb = 2;
2740 + if (p->algo < 0) p->algo = (level < 5 ? 0 : 1);
2741 + if (p->fb < 0) p->fb = (level < 7 ? 32 : 64);
2742 + if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1);
2743 + if (p->numHashBytes < 0) p->numHashBytes = 4;
2744 + if (p->mc == 0) p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
2745 + if (p->numThreads < 0) p->numThreads = ((p->btMode && p->algo) ? 2 : 1);
2748 +UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
2750 + CLzmaEncProps props = *props2;
2751 + LzmaEncProps_Normalize(&props);
2752 + return props.dictSize;
2755 +/* #define LZMA_LOG_BSR */
2756 +/* Define it for Intel's CPU */
2759 +#ifdef LZMA_LOG_BSR
2761 +#define kDicLogSizeMaxCompress 30
2763 +#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
2765 +UInt32 GetPosSlot1(UInt32 pos)
2768 + BSR2_RET(pos, res);
2771 +#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
2772 +#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); }
2776 +#define kNumLogBits (9 + (int)sizeof(size_t) / 2)
2777 +#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
2779 +void LzmaEnc_FastPosInit(Byte *g_FastPos)
2781 + int c = 2, slotFast;
2785 + for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++)
2787 + UInt32 k = (1 << ((slotFast >> 1) - 1));
2789 + for (j = 0; j < k; j++, c++)
2790 + g_FastPos[c] = (Byte)slotFast;
2794 +#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
2795 + (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
2796 + res = p->g_FastPos[pos >> i] + (i * 2); }
2798 +#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
2799 + p->g_FastPos[pos >> 6] + 12 : \
2800 + p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; }
2803 +#define GetPosSlot1(pos) p->g_FastPos[pos]
2804 +#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
2805 +#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos]; else BSR2_RET(pos, res); }
2810 +#define LZMA_NUM_REPS 4
2812 +typedef unsigned CState;
2814 +typedef struct _COptimal
2827 + UInt32 backs[LZMA_NUM_REPS];
2830 +#define kNumOpts (1 << 12)
2832 +#define kNumLenToPosStates 4
2833 +#define kNumPosSlotBits 6
2834 +#define kDicLogSizeMin 0
2835 +#define kDicLogSizeMax 32
2836 +#define kDistTableSizeMax (kDicLogSizeMax * 2)
2839 +#define kNumAlignBits 4
2840 +#define kAlignTableSize (1 << kNumAlignBits)
2841 +#define kAlignMask (kAlignTableSize - 1)
2843 +#define kStartPosModelIndex 4
2844 +#define kEndPosModelIndex 14
2845 +#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
2847 +#define kNumFullDistances (1 << (kEndPosModelIndex / 2))
2849 +#ifdef _LZMA_PROB32
2850 +#define CLzmaProb UInt32
2852 +#define CLzmaProb UInt16
2855 +#define LZMA_PB_MAX 4
2856 +#define LZMA_LC_MAX 8
2857 +#define LZMA_LP_MAX 4
2859 +#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX)
2862 +#define kLenNumLowBits 3
2863 +#define kLenNumLowSymbols (1 << kLenNumLowBits)
2864 +#define kLenNumMidBits 3
2865 +#define kLenNumMidSymbols (1 << kLenNumMidBits)
2866 +#define kLenNumHighBits 8
2867 +#define kLenNumHighSymbols (1 << kLenNumHighBits)
2869 +#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
2871 +#define LZMA_MATCH_LEN_MIN 2
2872 +#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)
2874 +#define kNumStates 12
2879 + CLzmaProb choice2;
2880 + CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits];
2881 + CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits];
2882 + CLzmaProb high[kLenNumHighSymbols];
2888 + UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
2890 + UInt32 counters[LZMA_NUM_PB_STATES_MAX];
2893 +typedef struct _CRangeEnc
2902 + ISeqOutStream *outStream;
2907 +typedef struct _CSeqInStreamBuf
2909 + ISeqInStream funcTable;
2914 +static SRes MyRead(void *pp, void *data, size_t *size)
2916 + size_t curSize = *size;
2917 + CSeqInStreamBuf *p = (CSeqInStreamBuf *)pp;
2918 + if (p->rem < curSize)
2920 + memcpy(data, p->data, curSize);
2921 + p->rem -= curSize;
2922 + p->data += curSize;
2929 + CLzmaProb *litProbs;
2931 + CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
2932 + CLzmaProb isRep[kNumStates];
2933 + CLzmaProb isRepG0[kNumStates];
2934 + CLzmaProb isRepG1[kNumStates];
2935 + CLzmaProb isRepG2[kNumStates];
2936 + CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
2938 + CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
2939 + CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
2940 + CLzmaProb posAlignEncoder[1 << kNumAlignBits];
2942 + CLenPriceEnc lenEnc;
2943 + CLenPriceEnc repLenEnc;
2945 + UInt32 reps[LZMA_NUM_REPS];
2949 +typedef struct _CLzmaEnc
2951 + IMatchFinder matchFinder;
2952 + void *matchFinderObj;
2954 + #ifdef COMPRESS_MF_MT
2956 + CMatchFinderMt matchFinderMt;
2959 + CMatchFinder matchFinderBase;
2961 + #ifdef COMPRESS_MF_MT
2965 + UInt32 optimumEndIndex;
2966 + UInt32 optimumCurrentIndex;
2968 + Bool longestMatchWasFound;
2969 + UInt32 longestMatchLength;
2970 + UInt32 numDistancePairs;
2972 + COptimal opt[kNumOpts];
2974 + #ifndef LZMA_LOG_BSR
2975 + Byte g_FastPos[1 << kNumLogBits];
2978 + UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
2979 + UInt32 matchDistances[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
2980 + UInt32 numFastBytes;
2981 + UInt32 additionalOffset;
2982 + UInt32 reps[LZMA_NUM_REPS];
2985 + UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
2986 + UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances];
2987 + UInt32 alignPrices[kAlignTableSize];
2988 + UInt32 alignPriceCount;
2990 + UInt32 distTableSize;
2992 + unsigned lc, lp, pb;
2993 + unsigned lpMask, pbMask;
2995 + CLzmaProb *litProbs;
2997 + CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
2998 + CLzmaProb isRep[kNumStates];
2999 + CLzmaProb isRepG0[kNumStates];
3000 + CLzmaProb isRepG1[kNumStates];
3001 + CLzmaProb isRepG2[kNumStates];
3002 + CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
3004 + CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
3005 + CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
3006 + CLzmaProb posAlignEncoder[1 << kNumAlignBits];
3008 + CLenPriceEnc lenEnc;
3009 + CLenPriceEnc repLenEnc;
3017 + Bool writeEndMark;
3019 + UInt32 matchPriceCount;
3025 + UInt32 matchFinderCycles;
3027 + ISeqInStream *inStream;
3028 + CSeqInStreamBuf seqBufInStream;
3030 + CSaveState saveState;
3033 +void LzmaEnc_SaveState(CLzmaEncHandle pp)
3035 + CLzmaEnc *p = (CLzmaEnc *)pp;
3036 + CSaveState *dest = &p->saveState;
3038 + dest->lenEnc = p->lenEnc;
3039 + dest->repLenEnc = p->repLenEnc;
3040 + dest->state = p->state;
3042 + for (i = 0; i < kNumStates; i++)
3044 + memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
3045 + memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
3047 + for (i = 0; i < kNumLenToPosStates; i++)
3048 + memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
3049 + memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
3050 + memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
3051 + memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
3052 + memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
3053 + memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
3054 + memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
3055 + memcpy(dest->reps, p->reps, sizeof(p->reps));
3056 + memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
3059 +void LzmaEnc_RestoreState(CLzmaEncHandle pp)
3061 + CLzmaEnc *dest = (CLzmaEnc *)pp;
3062 + const CSaveState *p = &dest->saveState;
3064 + dest->lenEnc = p->lenEnc;
3065 + dest->repLenEnc = p->repLenEnc;
3066 + dest->state = p->state;
3068 + for (i = 0; i < kNumStates; i++)
3070 + memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
3071 + memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
3073 + for (i = 0; i < kNumLenToPosStates; i++)
3074 + memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
3075 + memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
3076 + memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
3077 + memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
3078 + memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
3079 + memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
3080 + memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
3081 + memcpy(dest->reps, p->reps, sizeof(p->reps));
3082 + memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb));
3085 +SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
3087 + CLzmaEnc *p = (CLzmaEnc *)pp;
3088 + CLzmaEncProps props = *props2;
3089 + LzmaEncProps_Normalize(&props);
3091 + if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX ||
3092 + props.dictSize > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30))
3093 + return SZ_ERROR_PARAM;
3094 + p->dictSize = props.dictSize;
3095 + p->matchFinderCycles = props.mc;
3097 + unsigned fb = props.fb;
3100 + if (fb > LZMA_MATCH_LEN_MAX)
3101 + fb = LZMA_MATCH_LEN_MAX;
3102 + p->numFastBytes = fb;
3107 + p->fastMode = (props.algo == 0);
3108 + p->matchFinderBase.btMode = props.btMode;
3110 + UInt32 numHashBytes = 4;
3113 + if (props.numHashBytes < 2)
3115 + else if (props.numHashBytes < 4)
3116 + numHashBytes = props.numHashBytes;
3118 + p->matchFinderBase.numHashBytes = numHashBytes;
3121 + p->matchFinderBase.cutValue = props.mc;
3123 + p->writeEndMark = props.writeEndMark;
3125 + #ifdef COMPRESS_MF_MT
3127 + if (newMultiThread != _multiThread)
3129 + ReleaseMatchFinder();
3130 + _multiThread = newMultiThread;
3133 + p->multiThread = (props.numThreads > 1);
3139 +static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5};
3140 +static const int kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
3141 +static const int kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};
3142 +static const int kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};
3145 + void UpdateChar() { Index = kLiteralNextStates[Index]; }
3146 + void UpdateMatch() { Index = kMatchNextStates[Index]; }
3147 + void UpdateRep() { Index = kRepNextStates[Index]; }
3148 + void UpdateShortRep() { Index = kShortRepNextStates[Index]; }
3151 +#define IsCharState(s) ((s) < 7)
3154 +#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)
3156 +#define kInfinityPrice (1 << 30)
3158 +static void RangeEnc_Construct(CRangeEnc *p)
3164 +#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)
3166 +#define RC_BUF_SIZE (1 << 16)
3167 +static int RangeEnc_Alloc(CRangeEnc *p, ISzAlloc *alloc)
3169 + if (p->bufBase == 0)
3171 + p->bufBase = (Byte *)alloc->Alloc(alloc, RC_BUF_SIZE);
3172 + if (p->bufBase == 0)
3174 + p->bufLim = p->bufBase + RC_BUF_SIZE;
3179 +static void RangeEnc_Free(CRangeEnc *p, ISzAlloc *alloc)
3181 + alloc->Free(alloc, p->bufBase);
3185 +static void RangeEnc_Init(CRangeEnc *p)
3187 + /* Stream.Init(); */
3189 + p->range = 0xFFFFFFFF;
3193 + p->buf = p->bufBase;
3199 +static void RangeEnc_FlushStream(CRangeEnc *p)
3202 + if (p->res != SZ_OK)
3204 + num = p->buf - p->bufBase;
3205 + if (num != p->outStream->Write(p->outStream, p->bufBase, num))
3206 + p->res = SZ_ERROR_WRITE;
3207 + p->processed += num;
3208 + p->buf = p->bufBase;
3211 +static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
3213 + if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0)
3215 + Byte temp = p->cache;
3218 + Byte *buf = p->buf;
3219 + *buf++ = (Byte)(temp + (Byte)(p->low >> 32));
3221 + if (buf == p->bufLim)
3222 + RangeEnc_FlushStream(p);
3225 + while (--p->cacheSize != 0);
3226 + p->cache = (Byte)((UInt32)p->low >> 24);
3229 + p->low = (UInt32)p->low << 8;
3232 +static void RangeEnc_FlushData(CRangeEnc *p)
3235 + for (i = 0; i < 5; i++)
3236 + RangeEnc_ShiftLow(p);
3239 +static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits)
3244 + p->low += p->range & (0 - ((value >> --numBits) & 1));
3245 + if (p->range < kTopValue)
3248 + RangeEnc_ShiftLow(p);
3251 + while (numBits != 0);
3254 +static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, UInt32 symbol)
3256 + UInt32 ttt = *prob;
3257 + UInt32 newBound = (p->range >> kNumBitModelTotalBits) * ttt;
3260 + p->range = newBound;
3261 + ttt += (kBitModelTotal - ttt) >> kNumMoveBits;
3265 + p->low += newBound;
3266 + p->range -= newBound;
3267 + ttt -= ttt >> kNumMoveBits;
3269 + *prob = (CLzmaProb)ttt;
3270 + if (p->range < kTopValue)
3273 + RangeEnc_ShiftLow(p);
3277 +static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol)
3282 + RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1);
3285 + while (symbol < 0x10000);
3288 +static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte)
3290 + UInt32 offs = 0x100;
3295 + RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)), (symbol >> 7) & 1);
3297 + offs &= ~(matchByte ^ symbol);
3299 + while (symbol < 0x10000);
3302 +void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
3305 + for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits))
3307 + const int kCyclesBits = kNumBitPriceShiftBits;
3309 + UInt32 bitCount = 0;
3311 + for (j = 0; j < kCyclesBits; j++)
3315 + while (w >= ((UInt32)1 << 16))
3321 + ProbPrices[i >> kNumMoveReducingBits] = ((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);
3326 +#define GET_PRICE(prob, symbol) \
3327 + p->ProbPrices[((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
3329 +#define GET_PRICEa(prob, symbol) \
3330 + ProbPrices[((prob) ^ ((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
3332 +#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits]
3333 +#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
3335 +#define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits]
3336 +#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
3338 +static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *ProbPrices)
3344 + price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1);
3347 + while (symbol < 0x10000);
3351 +static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, UInt32 *ProbPrices)
3354 + UInt32 offs = 0x100;
3359 + price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1);
3361 + offs &= ~(matchByte ^ symbol);
3363 + while (symbol < 0x10000);
3368 +static void RcTree_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol)
3372 + for (i = numBitLevels; i != 0 ;)
3376 + bit = (symbol >> i) & 1;
3377 + RangeEnc_EncodeBit(rc, probs + m, bit);
3378 + m = (m << 1) | bit;
3382 +static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol)
3386 + for (i = 0; i < numBitLevels; i++)
3388 + UInt32 bit = symbol & 1;
3389 + RangeEnc_EncodeBit(rc, probs + m, bit);
3390 + m = (m << 1) | bit;
3395 +static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
3398 + symbol |= (1 << numBitLevels);
3399 + while (symbol != 1)
3401 + price += GET_PRICEa(probs[symbol >> 1], symbol & 1);
3407 +static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
3412 + for (i = numBitLevels; i != 0; i--)
3414 + UInt32 bit = symbol & 1;
3416 + price += GET_PRICEa(probs[m], bit);
3417 + m = (m << 1) | bit;
3423 +static void LenEnc_Init(CLenEnc *p)
3426 + p->choice = p->choice2 = kProbInitValue;
3427 + for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++)
3428 + p->low[i] = kProbInitValue;
3429 + for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++)
3430 + p->mid[i] = kProbInitValue;
3431 + for (i = 0; i < kLenNumHighSymbols; i++)
3432 + p->high[i] = kProbInitValue;
3435 +static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState)
3437 + if (symbol < kLenNumLowSymbols)
3439 + RangeEnc_EncodeBit(rc, &p->choice, 0);
3440 + RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol);
3444 + RangeEnc_EncodeBit(rc, &p->choice, 1);
3445 + if (symbol < kLenNumLowSymbols + kLenNumMidSymbols)
3447 + RangeEnc_EncodeBit(rc, &p->choice2, 0);
3448 + RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits, symbol - kLenNumLowSymbols);
3452 + RangeEnc_EncodeBit(rc, &p->choice2, 1);
3453 + RcTree_Encode(rc, p->high, kLenNumHighBits, symbol - kLenNumLowSymbols - kLenNumMidSymbols);
3458 +static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, UInt32 *ProbPrices)
3460 + UInt32 a0 = GET_PRICE_0a(p->choice);
3461 + UInt32 a1 = GET_PRICE_1a(p->choice);
3462 + UInt32 b0 = a1 + GET_PRICE_0a(p->choice2);
3463 + UInt32 b1 = a1 + GET_PRICE_1a(p->choice2);
3465 + for (i = 0; i < kLenNumLowSymbols; i++)
3467 + if (i >= numSymbols)
3469 + prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits, i, ProbPrices);
3471 + for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++)
3473 + if (i >= numSymbols)
3475 + prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits, i - kLenNumLowSymbols, ProbPrices);
3477 + for (; i < numSymbols; i++)
3478 + prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
3481 +static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, UInt32 *ProbPrices)
3483 + LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
3484 + p->counters[posState] = p->tableSize;
3487 +static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, UInt32 *ProbPrices)
3490 + for (posState = 0; posState < numPosStates; posState++)
3491 + LenPriceEnc_UpdateTable(p, posState, ProbPrices);
3494 +static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, UInt32 *ProbPrices)
3496 + LenEnc_Encode(&p->p, rc, symbol, posState);
3498 + if (--p->counters[posState] == 0)
3499 + LenPriceEnc_UpdateTable(p, posState, ProbPrices);
3505 +static void MovePos(CLzmaEnc *p, UInt32 num)
3509 + printf("\n MovePos %d", num);
3513 + p->additionalOffset += num;
3514 + p->matchFinder.Skip(p->matchFinderObj, num);
3518 +static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes)
3520 + UInt32 lenRes = 0, numDistancePairs;
3521 + numDistancePairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matchDistances);
3523 + printf("\n i = %d numPairs = %d ", ttt, numDistancePairs / 2);
3530 + for (i = 0; i < numDistancePairs; i += 2)
3531 + printf("%2d %6d | ", p->matchDistances[i], p->matchDistances[i + 1]);
3534 + if (numDistancePairs > 0)
3536 + lenRes = p->matchDistances[numDistancePairs - 2];
3537 + if (lenRes == p->numFastBytes)
3539 + UInt32 numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) + 1;
3540 + const Byte *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
3541 + UInt32 distance = p->matchDistances[numDistancePairs - 1] + 1;
3542 + if (numAvail > LZMA_MATCH_LEN_MAX)
3543 + numAvail = LZMA_MATCH_LEN_MAX;
3546 + const Byte *pby2 = pby - distance;
3547 + for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++);
3551 + p->additionalOffset++;
3552 + *numDistancePairsRes = numDistancePairs;
3557 +#define MakeAsChar(p) (p)->backPrev = (UInt32)(-1); (p)->prev1IsChar = False;
3558 +#define MakeAsShortRep(p) (p)->backPrev = 0; (p)->prev1IsChar = False;
3559 +#define IsShortRep(p) ((p)->backPrev == 0)
3561 +static UInt32 GetRepLen1Price(CLzmaEnc *p, UInt32 state, UInt32 posState)
3564 + GET_PRICE_0(p->isRepG0[state]) +
3565 + GET_PRICE_0(p->isRep0Long[state][posState]);
3568 +static UInt32 GetPureRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 state, UInt32 posState)
3571 + if (repIndex == 0)
3573 + price = GET_PRICE_0(p->isRepG0[state]);
3574 + price += GET_PRICE_1(p->isRep0Long[state][posState]);
3578 + price = GET_PRICE_1(p->isRepG0[state]);
3579 + if (repIndex == 1)
3580 + price += GET_PRICE_0(p->isRepG1[state]);
3583 + price += GET_PRICE_1(p->isRepG1[state]);
3584 + price += GET_PRICE(p->isRepG2[state], repIndex - 2);
3590 +static UInt32 GetRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 len, UInt32 state, UInt32 posState)
3592 + return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] +
3593 + GetPureRepPrice(p, repIndex, state, posState);
3596 +static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur)
3598 + UInt32 posMem = p->opt[cur].posPrev;
3599 + UInt32 backMem = p->opt[cur].backPrev;
3600 + p->optimumEndIndex = cur;
3603 + if (p->opt[cur].prev1IsChar)
3605 + MakeAsChar(&p->opt[posMem])
3606 + p->opt[posMem].posPrev = posMem - 1;
3607 + if (p->opt[cur].prev2)
3609 + p->opt[posMem - 1].prev1IsChar = False;
3610 + p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2;
3611 + p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2;
3615 + UInt32 posPrev = posMem;
3616 + UInt32 backCur = backMem;
3618 + backMem = p->opt[posPrev].backPrev;
3619 + posMem = p->opt[posPrev].posPrev;
3621 + p->opt[posPrev].backPrev = backCur;
3622 + p->opt[posPrev].posPrev = cur;
3627 + *backRes = p->opt[0].backPrev;
3628 + p->optimumCurrentIndex = p->opt[0].posPrev;
3629 + return p->optimumCurrentIndex;
3632 +#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300)
3634 +static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
3636 + UInt32 numAvailableBytes, lenMain, numDistancePairs;
3638 + UInt32 reps[LZMA_NUM_REPS];
3639 + UInt32 repLens[LZMA_NUM_REPS];
3640 + UInt32 repMaxIndex, i;
3641 + UInt32 *matchDistances;
3642 + Byte currentByte, matchByte;
3644 + UInt32 matchPrice, repMatchPrice;
3647 + UInt32 normalMatchPrice;
3649 + if (p->optimumEndIndex != p->optimumCurrentIndex)
3651 + const COptimal *opt = &p->opt[p->optimumCurrentIndex];
3652 + UInt32 lenRes = opt->posPrev - p->optimumCurrentIndex;
3653 + *backRes = opt->backPrev;
3654 + p->optimumCurrentIndex = opt->posPrev;
3657 + p->optimumCurrentIndex = p->optimumEndIndex = 0;
3659 + numAvailableBytes = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
3661 + if (!p->longestMatchWasFound)
3663 + lenMain = ReadMatchDistances(p, &numDistancePairs);
3667 + lenMain = p->longestMatchLength;
3668 + numDistancePairs = p->numDistancePairs;
3669 + p->longestMatchWasFound = False;
3672 + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
3673 + if (numAvailableBytes < 2)
3675 + *backRes = (UInt32)(-1);
3678 + if (numAvailableBytes > LZMA_MATCH_LEN_MAX)
3679 + numAvailableBytes = LZMA_MATCH_LEN_MAX;
3682 + for (i = 0; i < LZMA_NUM_REPS; i++)
3685 + const Byte *data2;
3686 + reps[i] = p->reps[i];
3687 + data2 = data - (reps[i] + 1);
3688 + if (data[0] != data2[0] || data[1] != data2[1])
3693 + for (lenTest = 2; lenTest < numAvailableBytes && data[lenTest] == data2[lenTest]; lenTest++);
3694 + repLens[i] = lenTest;
3695 + if (lenTest > repLens[repMaxIndex])
3698 + if (repLens[repMaxIndex] >= p->numFastBytes)
3701 + *backRes = repMaxIndex;
3702 + lenRes = repLens[repMaxIndex];
3703 + MovePos(p, lenRes - 1);
3707 + matchDistances = p->matchDistances;
3708 + if (lenMain >= p->numFastBytes)
3710 + *backRes = matchDistances[numDistancePairs - 1] + LZMA_NUM_REPS;
3711 + MovePos(p, lenMain - 1);
3714 + currentByte = *data;
3715 + matchByte = *(data - (reps[0] + 1));
3717 + if (lenMain < 2 && currentByte != matchByte && repLens[repMaxIndex] < 2)
3719 + *backRes = (UInt32)-1;
3723 + p->opt[0].state = (CState)p->state;
3725 + posState = (position & p->pbMask);
3728 + const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
3729 + p->opt[1].price = GET_PRICE_0(p->isMatch[p->state][posState]) +
3730 + (!IsCharState(p->state) ?
3731 + LitEnc_GetPriceMatched(probs, currentByte, matchByte, p->ProbPrices) :
3732 + LitEnc_GetPrice(probs, currentByte, p->ProbPrices));
3735 + MakeAsChar(&p->opt[1]);
3737 + matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]);
3738 + repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]);
3740 + if (matchByte == currentByte)
3742 + UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState);
3743 + if (shortRepPrice < p->opt[1].price)
3745 + p->opt[1].price = shortRepPrice;
3746 + MakeAsShortRep(&p->opt[1]);
3749 + lenEnd = ((lenMain >= repLens[repMaxIndex]) ? lenMain : repLens[repMaxIndex]);
3753 + *backRes = p->opt[1].backPrev;
3757 + p->opt[1].posPrev = 0;
3758 + for (i = 0; i < LZMA_NUM_REPS; i++)
3759 + p->opt[0].backs[i] = reps[i];
3763 + p->opt[len--].price = kInfinityPrice;
3766 + for (i = 0; i < LZMA_NUM_REPS; i++)
3768 + UInt32 repLen = repLens[i];
3772 + price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState);
3775 + UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2];
3776 + COptimal *opt = &p->opt[repLen];
3777 + if (curAndLenPrice < opt->price)
3779 + opt->price = curAndLenPrice;
3781 + opt->backPrev = i;
3782 + opt->prev1IsChar = False;
3785 + while (--repLen >= 2);
3788 + normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
3790 + len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);
3791 + if (len <= lenMain)
3794 + while (len > matchDistances[offs])
3799 + UInt32 distance = matchDistances[offs + 1];
3801 + UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN];
3802 + UInt32 lenToPosState = GetLenToPosState(len);
3803 + if (distance < kNumFullDistances)
3804 + curAndLenPrice += p->distancesPrices[lenToPosState][distance];
3808 + GetPosSlot2(distance, slot);
3809 + curAndLenPrice += p->alignPrices[distance & kAlignMask] + p->posSlotPrices[lenToPosState][slot];
3811 + opt = &p->opt[len];
3812 + if (curAndLenPrice < opt->price)
3814 + opt->price = curAndLenPrice;
3816 + opt->backPrev = distance + LZMA_NUM_REPS;
3817 + opt->prev1IsChar = False;
3819 + if (len == matchDistances[offs])
3822 + if (offs == numDistancePairs)
3831 + if (position >= 0)
3834 + printf("\n pos = %4X", position);
3835 + for (i = cur; i <= lenEnd; i++)
3836 + printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
3842 + UInt32 numAvailableBytesFull, newLen, numDistancePairs;
3849 + Byte currentByte, matchByte;
3851 + UInt32 curAnd1Price;
3852 + COptimal *nextOpt;
3853 + UInt32 matchPrice, repMatchPrice;
3854 + UInt32 numAvailableBytes;
3858 + if (cur == lenEnd)
3859 + return Backward(p, backRes, cur);
3861 + numAvailableBytesFull = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
3862 + newLen = ReadMatchDistances(p, &numDistancePairs);
3863 + if (newLen >= p->numFastBytes)
3865 + p->numDistancePairs = numDistancePairs;
3866 + p->longestMatchLength = newLen;
3867 + p->longestMatchWasFound = True;
3868 + return Backward(p, backRes, cur);
3871 + curOpt = &p->opt[cur];
3872 + posPrev = curOpt->posPrev;
3873 + if (curOpt->prev1IsChar)
3876 + if (curOpt->prev2)
3878 + state = p->opt[curOpt->posPrev2].state;
3879 + if (curOpt->backPrev2 < LZMA_NUM_REPS)
3880 + state = kRepNextStates[state];
3882 + state = kMatchNextStates[state];
3885 + state = p->opt[posPrev].state;
3886 + state = kLiteralNextStates[state];
3889 + state = p->opt[posPrev].state;
3890 + if (posPrev == cur - 1)
3892 + if (IsShortRep(curOpt))
3893 + state = kShortRepNextStates[state];
3895 + state = kLiteralNextStates[state];
3900 + const COptimal *prevOpt;
3901 + if (curOpt->prev1IsChar && curOpt->prev2)
3903 + posPrev = curOpt->posPrev2;
3904 + pos = curOpt->backPrev2;
3905 + state = kRepNextStates[state];
3909 + pos = curOpt->backPrev;
3910 + if (pos < LZMA_NUM_REPS)
3911 + state = kRepNextStates[state];
3913 + state = kMatchNextStates[state];
3915 + prevOpt = &p->opt[posPrev];
3916 + if (pos < LZMA_NUM_REPS)
3919 + reps[0] = prevOpt->backs[pos];
3920 + for (i = 1; i <= pos; i++)
3921 + reps[i] = prevOpt->backs[i - 1];
3922 + for (; i < LZMA_NUM_REPS; i++)
3923 + reps[i] = prevOpt->backs[i];
3928 + reps[0] = (pos - LZMA_NUM_REPS);
3929 + for (i = 1; i < LZMA_NUM_REPS; i++)
3930 + reps[i] = prevOpt->backs[i - 1];
3933 + curOpt->state = (CState)state;
3935 + curOpt->backs[0] = reps[0];
3936 + curOpt->backs[1] = reps[1];
3937 + curOpt->backs[2] = reps[2];
3938 + curOpt->backs[3] = reps[3];
3940 + curPrice = curOpt->price;
3941 + nextIsChar = False;
3942 + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
3943 + currentByte = *data;
3944 + matchByte = *(data - (reps[0] + 1));
3946 + posState = (position & p->pbMask);
3948 + curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]);
3950 + const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
3952 + (!IsCharState(state) ?
3953 + LitEnc_GetPriceMatched(probs, currentByte, matchByte, p->ProbPrices) :
3954 + LitEnc_GetPrice(probs, currentByte, p->ProbPrices));
3957 + nextOpt = &p->opt[cur + 1];
3959 + if (curAnd1Price < nextOpt->price)
3961 + nextOpt->price = curAnd1Price;
3962 + nextOpt->posPrev = cur;
3963 + MakeAsChar(nextOpt);
3964 + nextIsChar = True;
3967 + matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);
3968 + repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);
3970 + if (matchByte == currentByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0))
3972 + UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState);
3973 + if (shortRepPrice <= nextOpt->price)
3975 + nextOpt->price = shortRepPrice;
3976 + nextOpt->posPrev = cur;
3977 + MakeAsShortRep(nextOpt);
3978 + nextIsChar = True;
3983 + UInt32 temp = kNumOpts - 1 - cur;
3984 + if (temp < numAvailableBytesFull)
3985 + numAvailableBytesFull = temp;
3987 + numAvailableBytes = numAvailableBytesFull;
3989 + if (numAvailableBytes < 2)
3991 + if (numAvailableBytes > p->numFastBytes)
3992 + numAvailableBytes = p->numFastBytes;
3993 + if (!nextIsChar && matchByte != currentByte) /* speed optimization */
3995 + /* try Literal + rep0 */
3998 + const Byte *data2 = data - (reps[0] + 1);
3999 + UInt32 limit = p->numFastBytes + 1;
4000 + if (limit > numAvailableBytesFull)
4001 + limit = numAvailableBytesFull;
4003 + for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++);
4004 + lenTest2 = temp - 1;
4005 + if (lenTest2 >= 2)
4007 + UInt32 state2 = kLiteralNextStates[state];
4008 + UInt32 posStateNext = (position + 1) & p->pbMask;
4009 + UInt32 nextRepMatchPrice = curAnd1Price +
4010 + GET_PRICE_1(p->isMatch[state2][posStateNext]) +
4011 + GET_PRICE_1(p->isRep[state2]);
4012 + /* for (; lenTest2 >= 2; lenTest2--) */
4014 + UInt32 curAndLenPrice;
4016 + UInt32 offset = cur + 1 + lenTest2;
4017 + while (lenEnd < offset)
4018 + p->opt[++lenEnd].price = kInfinityPrice;
4019 + curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
4020 + opt = &p->opt[offset];
4021 + if (curAndLenPrice < opt->price)
4023 + opt->price = curAndLenPrice;
4024 + opt->posPrev = cur + 1;
4025 + opt->backPrev = 0;
4026 + opt->prev1IsChar = True;
4027 + opt->prev2 = False;
4033 + startLen = 2; /* speed optimization */
4036 + for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++)
4039 + UInt32 lenTestTemp;
4041 + const Byte *data2 = data - (reps[repIndex] + 1);
4042 + if (data[0] != data2[0] || data[1] != data2[1])
4044 + for (lenTest = 2; lenTest < numAvailableBytes && data[lenTest] == data2[lenTest]; lenTest++);
4045 + while (lenEnd < cur + lenTest)
4046 + p->opt[++lenEnd].price = kInfinityPrice;
4047 + lenTestTemp = lenTest;
4048 + price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState);
4051 + UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][lenTest - 2];
4052 + COptimal *opt = &p->opt[cur + lenTest];
4053 + if (curAndLenPrice < opt->price)
4055 + opt->price = curAndLenPrice;
4056 + opt->posPrev = cur;
4057 + opt->backPrev = repIndex;
4058 + opt->prev1IsChar = False;
4061 + while (--lenTest >= 2);
4062 + lenTest = lenTestTemp;
4064 + if (repIndex == 0)
4065 + startLen = lenTest + 1;
4067 + /* if (_maxMode) */
4069 + UInt32 lenTest2 = lenTest + 1;
4070 + UInt32 limit = lenTest2 + p->numFastBytes;
4071 + UInt32 nextRepMatchPrice;
4072 + if (limit > numAvailableBytesFull)
4073 + limit = numAvailableBytesFull;
4074 + for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
4075 + lenTest2 -= lenTest + 1;
4076 + if (lenTest2 >= 2)
4078 + UInt32 state2 = kRepNextStates[state];
4079 + UInt32 posStateNext = (position + lenTest) & p->pbMask;
4080 + UInt32 curAndLenCharPrice =
4081 + price + p->repLenEnc.prices[posState][lenTest - 2] +
4082 + GET_PRICE_0(p->isMatch[state2][posStateNext]) +
4083 + LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]),
4084 + data[lenTest], data2[lenTest], p->ProbPrices);
4085 + state2 = kLiteralNextStates[state2];
4086 + posStateNext = (position + lenTest + 1) & p->pbMask;
4087 + nextRepMatchPrice = curAndLenCharPrice +
4088 + GET_PRICE_1(p->isMatch[state2][posStateNext]) +
4089 + GET_PRICE_1(p->isRep[state2]);
4091 + /* for (; lenTest2 >= 2; lenTest2--) */
4093 + UInt32 curAndLenPrice;
4095 + UInt32 offset = cur + lenTest + 1 + lenTest2;
4096 + while (lenEnd < offset)
4097 + p->opt[++lenEnd].price = kInfinityPrice;
4098 + curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
4099 + opt = &p->opt[offset];
4100 + if (curAndLenPrice < opt->price)
4102 + opt->price = curAndLenPrice;
4103 + opt->posPrev = cur + lenTest + 1;
4104 + opt->backPrev = 0;
4105 + opt->prev1IsChar = True;
4106 + opt->prev2 = True;
4107 + opt->posPrev2 = cur;
4108 + opt->backPrev2 = repIndex;
4115 + /* for (UInt32 lenTest = 2; lenTest <= newLen; lenTest++) */
4116 + if (newLen > numAvailableBytes)
4118 + newLen = numAvailableBytes;
4119 + for (numDistancePairs = 0; newLen > matchDistances[numDistancePairs]; numDistancePairs += 2);
4120 + matchDistances[numDistancePairs] = newLen;
4121 + numDistancePairs += 2;
4123 + if (newLen >= startLen)
4125 + UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
4126 + UInt32 offs, curBack, posSlot;
4128 + while (lenEnd < cur + newLen)
4129 + p->opt[++lenEnd].price = kInfinityPrice;
4132 + while (startLen > matchDistances[offs])
4134 + curBack = matchDistances[offs + 1];
4135 + GetPosSlot2(curBack, posSlot);
4136 + for (lenTest = /*2*/ startLen; ; lenTest++)
4138 + UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN];
4139 + UInt32 lenToPosState = GetLenToPosState(lenTest);
4141 + if (curBack < kNumFullDistances)
4142 + curAndLenPrice += p->distancesPrices[lenToPosState][curBack];
4144 + curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[curBack & kAlignMask];
4146 + opt = &p->opt[cur + lenTest];
4147 + if (curAndLenPrice < opt->price)
4149 + opt->price = curAndLenPrice;
4150 + opt->posPrev = cur;
4151 + opt->backPrev = curBack + LZMA_NUM_REPS;
4152 + opt->prev1IsChar = False;
4155 + if (/*_maxMode && */lenTest == matchDistances[offs])
4157 + /* Try Match + Literal + Rep0 */
4158 + const Byte *data2 = data - (curBack + 1);
4159 + UInt32 lenTest2 = lenTest + 1;
4160 + UInt32 limit = lenTest2 + p->numFastBytes;
4161 + UInt32 nextRepMatchPrice;
4162 + if (limit > numAvailableBytesFull)
4163 + limit = numAvailableBytesFull;
4164 + for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
4165 + lenTest2 -= lenTest + 1;
4166 + if (lenTest2 >= 2)
4168 + UInt32 state2 = kMatchNextStates[state];
4169 + UInt32 posStateNext = (position + lenTest) & p->pbMask;
4170 + UInt32 curAndLenCharPrice = curAndLenPrice +
4171 + GET_PRICE_0(p->isMatch[state2][posStateNext]) +
4172 + LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]),
4173 + data[lenTest], data2[lenTest], p->ProbPrices);
4174 + state2 = kLiteralNextStates[state2];
4175 + posStateNext = (posStateNext + 1) & p->pbMask;
4176 + nextRepMatchPrice = curAndLenCharPrice +
4177 + GET_PRICE_1(p->isMatch[state2][posStateNext]) +
4178 + GET_PRICE_1(p->isRep[state2]);
4180 + /* for (; lenTest2 >= 2; lenTest2--) */
4182 + UInt32 offset = cur + lenTest + 1 + lenTest2;
4183 + UInt32 curAndLenPrice;
4185 + while (lenEnd < offset)
4186 + p->opt[++lenEnd].price = kInfinityPrice;
4187 + curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
4188 + opt = &p->opt[offset];
4189 + if (curAndLenPrice < opt->price)
4191 + opt->price = curAndLenPrice;
4192 + opt->posPrev = cur + lenTest + 1;
4193 + opt->backPrev = 0;
4194 + opt->prev1IsChar = True;
4195 + opt->prev2 = True;
4196 + opt->posPrev2 = cur;
4197 + opt->backPrev2 = curBack + LZMA_NUM_REPS;
4202 + if (offs == numDistancePairs)
4204 + curBack = matchDistances[offs + 1];
4205 + if (curBack >= kNumFullDistances)
4206 + GetPosSlot2(curBack, posSlot);
4213 +#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist))
4215 +static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes)
4217 + UInt32 numAvailableBytes = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
4218 + UInt32 lenMain, numDistancePairs;
4220 + UInt32 repLens[LZMA_NUM_REPS];
4221 + UInt32 repMaxIndex, i;
4222 + UInt32 *matchDistances;
4225 + if (!p->longestMatchWasFound)
4227 + lenMain = ReadMatchDistances(p, &numDistancePairs);
4231 + lenMain = p->longestMatchLength;
4232 + numDistancePairs = p->numDistancePairs;
4233 + p->longestMatchWasFound = False;
4236 + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
4237 + if (numAvailableBytes > LZMA_MATCH_LEN_MAX)
4238 + numAvailableBytes = LZMA_MATCH_LEN_MAX;
4239 + if (numAvailableBytes < 2)
4241 + *backRes = (UInt32)(-1);
4247 + for (i = 0; i < LZMA_NUM_REPS; i++)
4249 + const Byte *data2 = data - (p->reps[i] + 1);
4251 + if (data[0] != data2[0] || data[1] != data2[1])
4256 + for (len = 2; len < numAvailableBytes && data[len] == data2[len]; len++);
4257 + if (len >= p->numFastBytes)
4260 + MovePos(p, len - 1);
4264 + if (len > repLens[repMaxIndex])
4267 + matchDistances = p->matchDistances;
4268 + if (lenMain >= p->numFastBytes)
4270 + *backRes = matchDistances[numDistancePairs - 1] + LZMA_NUM_REPS;
4271 + MovePos(p, lenMain - 1);
4275 + backMain = 0; /* for GCC */
4278 + backMain = matchDistances[numDistancePairs - 1];
4279 + while (numDistancePairs > 2 && lenMain == matchDistances[numDistancePairs - 4] + 1)
4281 + if (!ChangePair(matchDistances[numDistancePairs - 3], backMain))
4283 + numDistancePairs -= 2;
4284 + lenMain = matchDistances[numDistancePairs - 2];
4285 + backMain = matchDistances[numDistancePairs - 1];
4287 + if (lenMain == 2 && backMain >= 0x80)
4291 + if (repLens[repMaxIndex] >= 2)
4293 + if (repLens[repMaxIndex] + 1 >= lenMain ||
4294 + (repLens[repMaxIndex] + 2 >= lenMain && (backMain > (1 << 9))) ||
4295 + (repLens[repMaxIndex] + 3 >= lenMain && (backMain > (1 << 15))))
4298 + *backRes = repMaxIndex;
4299 + lenRes = repLens[repMaxIndex];
4300 + MovePos(p, lenRes - 1);
4305 + if (lenMain >= 2 && numAvailableBytes > 2)
4308 + numAvailableBytes = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
4309 + p->longestMatchLength = ReadMatchDistances(p, &p->numDistancePairs);
4310 + if (p->longestMatchLength >= 2)
4312 + UInt32 newDistance = matchDistances[p->numDistancePairs - 1];
4313 + if ((p->longestMatchLength >= lenMain && newDistance < backMain) ||
4314 + (p->longestMatchLength == lenMain + 1 && !ChangePair(backMain, newDistance)) ||
4315 + (p->longestMatchLength > lenMain + 1) ||
4316 + (p->longestMatchLength + 1 >= lenMain && lenMain >= 3 && ChangePair(newDistance, backMain)))
4318 + p->longestMatchWasFound = True;
4319 + *backRes = (UInt32)(-1);
4323 + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
4324 + for (i = 0; i < LZMA_NUM_REPS; i++)
4327 + const Byte *data2 = data - (p->reps[i] + 1);
4328 + if (data[1] != data2[1] || data[2] != data2[2])
4333 + for (len = 2; len < numAvailableBytes && data[len] == data2[len]; len++);
4334 + if (len + 1 >= lenMain)
4336 + p->longestMatchWasFound = True;
4337 + *backRes = (UInt32)(-1);
4341 + *backRes = backMain + LZMA_NUM_REPS;
4342 + MovePos(p, lenMain - 2);
4345 + *backRes = (UInt32)(-1);
4349 +static void WriteEndMarker(CLzmaEnc *p, UInt32 posState)
4352 + RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
4353 + RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
4354 + p->state = kMatchNextStates[p->state];
4355 + len = LZMA_MATCH_LEN_MIN;
4356 + LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
4357 + RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, (1 << kNumPosSlotBits) - 1);
4358 + RangeEnc_EncodeDirectBits(&p->rc, (((UInt32)1 << 30) - 1) >> kNumAlignBits, 30 - kNumAlignBits);
4359 + RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
4362 +static SRes CheckErrors(CLzmaEnc *p)
4364 + if (p->result != SZ_OK)
4366 + if (p->rc.res != SZ_OK)
4367 + p->result = SZ_ERROR_WRITE;
4368 + if (p->matchFinderBase.result != SZ_OK)
4369 + p->result = SZ_ERROR_READ;
4370 + if (p->result != SZ_OK)
4371 + p->finished = True;
4375 +static SRes Flush(CLzmaEnc *p, UInt32 nowPos)
4377 + /* ReleaseMFStream(); */
4378 + p->finished = True;
4379 + if (p->writeEndMark)
4380 + WriteEndMarker(p, nowPos & p->pbMask);
4381 + RangeEnc_FlushData(&p->rc);
4382 + RangeEnc_FlushStream(&p->rc);
4383 + return CheckErrors(p);
4386 +static void FillAlignPrices(CLzmaEnc *p)
4389 + for (i = 0; i < kAlignTableSize; i++)
4390 + p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices);
4391 + p->alignPriceCount = 0;
4394 +static void FillDistancesPrices(CLzmaEnc *p)
4396 + UInt32 tempPrices[kNumFullDistances];
4397 + UInt32 i, lenToPosState;
4398 + for (i = kStartPosModelIndex; i < kNumFullDistances; i++)
4400 + UInt32 posSlot = GetPosSlot1(i);
4401 + UInt32 footerBits = ((posSlot >> 1) - 1);
4402 + UInt32 base = ((2 | (posSlot & 1)) << footerBits);
4403 + tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits, i - base, p->ProbPrices);
4406 + for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)
4409 + const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState];
4410 + UInt32 *posSlotPrices = p->posSlotPrices[lenToPosState];
4411 + for (posSlot = 0; posSlot < p->distTableSize; posSlot++)
4412 + posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);
4413 + for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++)
4414 + posSlotPrices[posSlot] += ((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
4417 + UInt32 *distancesPrices = p->distancesPrices[lenToPosState];
4419 + for (i = 0; i < kStartPosModelIndex; i++)
4420 + distancesPrices[i] = posSlotPrices[i];
4421 + for (; i < kNumFullDistances; i++)
4422 + distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i];
4425 + p->matchPriceCount = 0;
4428 +void LzmaEnc_Construct(CLzmaEnc *p)
4430 + RangeEnc_Construct(&p->rc);
4431 + MatchFinder_Construct(&p->matchFinderBase);
4432 + #ifdef COMPRESS_MF_MT
4433 + MatchFinderMt_Construct(&p->matchFinderMt);
4434 + p->matchFinderMt.MatchFinder = &p->matchFinderBase;
4438 + CLzmaEncProps props;
4439 + LzmaEncProps_Init(&props);
4440 + LzmaEnc_SetProps(p, &props);
4443 + #ifndef LZMA_LOG_BSR
4444 + LzmaEnc_FastPosInit(p->g_FastPos);
4447 + LzmaEnc_InitPriceTables(p->ProbPrices);
4449 + p->saveState.litProbs = 0;
4452 +CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc)
4455 + p = alloc->Alloc(alloc, sizeof(CLzmaEnc));
4457 + LzmaEnc_Construct((CLzmaEnc *)p);
4461 +void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
4463 + alloc->Free(alloc, p->litProbs);
4464 + alloc->Free(alloc, p->saveState.litProbs);
4466 + p->saveState.litProbs = 0;
4469 +void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
4471 + #ifdef COMPRESS_MF_MT
4472 + MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
4474 + MatchFinder_Free(&p->matchFinderBase, allocBig);
4475 + LzmaEnc_FreeLits(p, alloc);
4476 + RangeEnc_Free(&p->rc, alloc);
4479 +void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig)
4481 + LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig);
4482 + alloc->Free(alloc, p);
4485 +static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize, UInt32 maxUnpackSize)
4487 + UInt32 nowPos32, startPos32;
4488 + if (p->inStream != 0)
4490 + p->matchFinderBase.stream = p->inStream;
4491 + p->matchFinder.Init(p->matchFinderObj);
4497 + RINOK(CheckErrors(p));
4499 + nowPos32 = (UInt32)p->nowPos64;
4500 + startPos32 = nowPos32;
4502 + if (p->nowPos64 == 0)
4504 + UInt32 numDistancePairs;
4506 + if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
4507 + return Flush(p, nowPos32);
4508 + ReadMatchDistances(p, &numDistancePairs);
4509 + RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0);
4510 + p->state = kLiteralNextStates[p->state];
4511 + curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset);
4512 + LitEnc_Encode(&p->rc, p->litProbs, curByte);
4513 + p->additionalOffset--;
4517 + if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)
4520 + UInt32 pos, len, posState;
4523 + len = GetOptimumFast(p, &pos);
4525 + len = GetOptimum(p, nowPos32, &pos);
4528 + printf("\n pos = %4X, len = %d pos = %d", nowPos32, len, pos);
4531 + posState = nowPos32 & p->pbMask;
4532 + if (len == 1 && pos == 0xFFFFFFFF)
4538 + RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0);
4539 + data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
4541 + probs = LIT_PROBS(nowPos32, *(data - 1));
4542 + if (IsCharState(p->state))
4543 + LitEnc_Encode(&p->rc, probs, curByte);
4545 + LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1));
4546 + p->state = kLiteralNextStates[p->state];
4550 + RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
4551 + if (pos < LZMA_NUM_REPS)
4553 + RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1);
4556 + RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0);
4557 + RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState], ((len == 1) ? 0 : 1));
4561 + UInt32 distance = p->reps[pos];
4562 + RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1);
4564 + RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0);
4567 + RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1);
4568 + RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2);
4570 + p->reps[3] = p->reps[2];
4571 + p->reps[2] = p->reps[1];
4573 + p->reps[1] = p->reps[0];
4574 + p->reps[0] = distance;
4577 + p->state = kShortRepNextStates[p->state];
4580 + LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
4581 + p->state = kRepNextStates[p->state];
4587 + RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
4588 + p->state = kMatchNextStates[p->state];
4589 + LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
4590 + pos -= LZMA_NUM_REPS;
4591 + GetPosSlot(pos, posSlot);
4592 + RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot);
4594 + if (posSlot >= kStartPosModelIndex)
4596 + UInt32 footerBits = ((posSlot >> 1) - 1);
4597 + UInt32 base = ((2 | (posSlot & 1)) << footerBits);
4598 + UInt32 posReduced = pos - base;
4600 + if (posSlot < kEndPosModelIndex)
4601 + RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1, footerBits, posReduced);
4604 + RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits, footerBits - kNumAlignBits);
4605 + RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, posReduced & kAlignMask);
4606 + p->alignPriceCount++;
4609 + p->reps[3] = p->reps[2];
4610 + p->reps[2] = p->reps[1];
4611 + p->reps[1] = p->reps[0];
4613 + p->matchPriceCount++;
4616 + p->additionalOffset -= len;
4618 + if (p->additionalOffset == 0)
4623 + if (p->matchPriceCount >= (1 << 7))
4624 + FillDistancesPrices(p);
4625 + if (p->alignPriceCount >= kAlignTableSize)
4626 + FillAlignPrices(p);
4628 + if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
4630 + processed = nowPos32 - startPos32;
4633 + if (processed + kNumOpts + 300 >= maxUnpackSize ||
4634 + RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize)
4637 + else if (processed >= (1 << 15))
4639 + p->nowPos64 += nowPos32 - startPos32;
4640 + return CheckErrors(p);
4644 + p->nowPos64 += nowPos32 - startPos32;
4645 + return Flush(p, nowPos32);
4648 +#define kBigHashDicLimit ((UInt32)1 << 24)
4650 +static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
4652 + UInt32 beforeSize = kNumOpts;
4654 + if (!RangeEnc_Alloc(&p->rc, alloc))
4655 + return SZ_ERROR_MEM;
4656 + btMode = (p->matchFinderBase.btMode != 0);
4657 + #ifdef COMPRESS_MF_MT
4658 + p->mtMode = (p->multiThread && !p->fastMode && btMode);
4662 + unsigned lclp = p->lc + p->lp;
4663 + if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp)
4665 + LzmaEnc_FreeLits(p, alloc);
4666 + p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
4667 + p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
4668 + if (p->litProbs == 0 || p->saveState.litProbs == 0)
4670 + LzmaEnc_FreeLits(p, alloc);
4671 + return SZ_ERROR_MEM;
4677 + p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit);
4679 + if (beforeSize + p->dictSize < keepWindowSize)
4680 + beforeSize = keepWindowSize - p->dictSize;
4682 + #ifdef COMPRESS_MF_MT
4685 + RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig));
4686 + p->matchFinderObj = &p->matchFinderMt;
4687 + MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);
4692 + if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig))
4693 + return SZ_ERROR_MEM;
4694 + p->matchFinderObj = &p->matchFinderBase;
4695 + MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
4700 +void LzmaEnc_Init(CLzmaEnc *p)
4704 + for(i = 0 ; i < LZMA_NUM_REPS; i++)
4707 + RangeEnc_Init(&p->rc);
4710 + for (i = 0; i < kNumStates; i++)
4713 + for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++)
4715 + p->isMatch[i][j] = kProbInitValue;
4716 + p->isRep0Long[i][j] = kProbInitValue;
4718 + p->isRep[i] = kProbInitValue;
4719 + p->isRepG0[i] = kProbInitValue;
4720 + p->isRepG1[i] = kProbInitValue;
4721 + p->isRepG2[i] = kProbInitValue;
4725 + UInt32 num = 0x300 << (p->lp + p->lc);
4726 + for (i = 0; i < num; i++)
4727 + p->litProbs[i] = kProbInitValue;
4731 + for (i = 0; i < kNumLenToPosStates; i++)
4733 + CLzmaProb *probs = p->posSlotEncoder[i];
4735 + for (j = 0; j < (1 << kNumPosSlotBits); j++)
4736 + probs[j] = kProbInitValue;
4740 + for(i = 0; i < kNumFullDistances - kEndPosModelIndex; i++)
4741 + p->posEncoders[i] = kProbInitValue;
4744 + LenEnc_Init(&p->lenEnc.p);
4745 + LenEnc_Init(&p->repLenEnc.p);
4747 + for (i = 0; i < (1 << kNumAlignBits); i++)
4748 + p->posAlignEncoder[i] = kProbInitValue;
4750 + p->longestMatchWasFound = False;
4751 + p->optimumEndIndex = 0;
4752 + p->optimumCurrentIndex = 0;
4753 + p->additionalOffset = 0;
4755 + p->pbMask = (1 << p->pb) - 1;
4756 + p->lpMask = (1 << p->lp) - 1;
4759 +void LzmaEnc_InitPrices(CLzmaEnc *p)
4763 + FillDistancesPrices(p);
4764 + FillAlignPrices(p);
4767 + p->lenEnc.tableSize =
4768 + p->repLenEnc.tableSize =
4769 + p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;
4770 + LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, p->ProbPrices);
4771 + LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices);
4774 +static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
4777 + for (i = 0; i < (UInt32)kDicLogSizeMaxCompress; i++)
4778 + if (p->dictSize <= ((UInt32)1 << i))
4780 + p->distTableSize = i * 2;
4782 + p->finished = False;
4783 + p->result = SZ_OK;
4784 + RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig));
4786 + LzmaEnc_InitPrices(p);
4791 +static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqInStream *inStream, ISeqOutStream *outStream,
4792 + ISzAlloc *alloc, ISzAlloc *allocBig)
4794 + CLzmaEnc *p = (CLzmaEnc *)pp;
4795 + p->inStream = inStream;
4796 + p->rc.outStream = outStream;
4797 + return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig);
4800 +SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp,
4801 + ISeqInStream *inStream, UInt32 keepWindowSize,
4802 + ISzAlloc *alloc, ISzAlloc *allocBig)
4804 + CLzmaEnc *p = (CLzmaEnc *)pp;
4805 + p->inStream = inStream;
4806 + return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
4809 +static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen)
4811 + p->seqBufInStream.funcTable.Read = MyRead;
4812 + p->seqBufInStream.data = src;
4813 + p->seqBufInStream.rem = srcLen;
4816 +SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
4817 + UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
4819 + CLzmaEnc *p = (CLzmaEnc *)pp;
4820 + LzmaEnc_SetInputBuf(p, src, srcLen);
4821 + p->inStream = &p->seqBufInStream.funcTable;
4822 + return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
4825 +void LzmaEnc_Finish(CLzmaEncHandle pp)
4827 + #ifdef COMPRESS_MF_MT
4828 + CLzmaEnc *p = (CLzmaEnc *)pp;
4830 + MatchFinderMt_ReleaseStream(&p->matchFinderMt);
4834 +typedef struct _CSeqOutStreamBuf
4836 + ISeqOutStream funcTable;
4840 +} CSeqOutStreamBuf;
4842 +static size_t MyWrite(void *pp, const void *data, size_t size)
4844 + CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp;
4845 + if (p->rem < size)
4848 + p->overflow = True;
4850 + memcpy(p->data, data, size);
4857 +UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
4859 + const CLzmaEnc *p = (CLzmaEnc *)pp;
4860 + return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
4863 +const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
4865 + const CLzmaEnc *p = (CLzmaEnc *)pp;
4866 + return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
4869 +SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
4870 + Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
4872 + CLzmaEnc *p = (CLzmaEnc *)pp;
4875 + CSeqOutStreamBuf outStream;
4877 + outStream.funcTable.Write = MyWrite;
4878 + outStream.data = dest;
4879 + outStream.rem = *destLen;
4880 + outStream.overflow = False;
4882 + p->writeEndMark = False;
4883 + p->finished = False;
4884 + p->result = SZ_OK;
4888 + LzmaEnc_InitPrices(p);
4889 + nowPos64 = p->nowPos64;
4890 + RangeEnc_Init(&p->rc);
4891 + p->rc.outStream = &outStream.funcTable;
4893 + res = LzmaEnc_CodeOneBlock(pp, True, desiredPackSize, *unpackSize);
4895 + *unpackSize = (UInt32)(p->nowPos64 - nowPos64);
4896 + *destLen -= outStream.rem;
4897 + if (outStream.overflow)
4898 + return SZ_ERROR_OUTPUT_EOF;
4903 +SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
4904 + ISzAlloc *alloc, ISzAlloc *allocBig)
4906 + CLzmaEnc *p = (CLzmaEnc *)pp;
4909 + #ifdef COMPRESS_MF_MT
4910 + Byte allocaDummy[0x300];
4912 + for (i = 0; i < 16; i++)
4913 + allocaDummy[i] = (Byte)i;
4916 + RINOK(LzmaEnc_Prepare(pp, inStream, outStream, alloc, allocBig));
4920 + res = LzmaEnc_CodeOneBlock(pp, False, 0, 0);
4921 + if (res != SZ_OK || p->finished != 0)
4923 + if (progress != 0)
4925 + res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
4928 + res = SZ_ERROR_PROGRESS;
4933 + LzmaEnc_Finish(pp);
4937 +SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
4939 + CLzmaEnc *p = (CLzmaEnc *)pp;
4941 + UInt32 dictSize = p->dictSize;
4942 + if (*size < LZMA_PROPS_SIZE)
4943 + return SZ_ERROR_PARAM;
4944 + *size = LZMA_PROPS_SIZE;
4945 + props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc);
4947 + for (i = 11; i <= 30; i++)
4949 + if (dictSize <= ((UInt32)2 << i))
4951 + dictSize = (2 << i);
4954 + if (dictSize <= ((UInt32)3 << i))
4956 + dictSize = (3 << i);
4961 + for (i = 0; i < 4; i++)
4962 + props[1 + i] = (Byte)(dictSize >> (8 * i));
4966 +SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
4967 + int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
4970 + CLzmaEnc *p = (CLzmaEnc *)pp;
4972 + CSeqOutStreamBuf outStream;
4974 + LzmaEnc_SetInputBuf(p, src, srcLen);
4976 + outStream.funcTable.Write = MyWrite;
4977 + outStream.data = dest;
4978 + outStream.rem = *destLen;
4979 + outStream.overflow = False;
4981 + p->writeEndMark = writeEndMark;
4982 + res = LzmaEnc_Encode(pp, &outStream.funcTable, &p->seqBufInStream.funcTable,
4983 + progress, alloc, allocBig);
4985 + *destLen -= outStream.rem;
4986 + if (outStream.overflow)
4987 + return SZ_ERROR_OUTPUT_EOF;
4991 +SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
4992 + const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
4993 + ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
4995 + CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc);
4998 + return SZ_ERROR_MEM;
5000 + res = LzmaEnc_SetProps(p, props);
5003 + res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize);
5005 + res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen,
5006 + writeEndMark, progress, alloc, allocBig);
5009 + LzmaEnc_Destroy(p, alloc, allocBig);
5014 @@ -1658,11 +1658,11 @@ int main(int argc, char **argv)
5016 erase_block_size *= units;
5018 - /* If it's less than 8KiB, they're not allowed */
5019 - if (erase_block_size < 0x2000) {
5020 - fprintf(stderr, "Erase size 0x%x too small. Increasing to 8KiB minimum\n",
5021 + /* If it's less than 4KiB, they're not allowed */
5022 + if (erase_block_size < 0x1000) {
5023 + fprintf(stderr, "Erase size 0x%x too small. Increasing to 4KiB minimum\n",
5025 - erase_block_size = 0x2000;
5026 + erase_block_size = 0x1000;