]>
Commit | Line | Data |
---|---|---|
306bf4e2 | 1 | /** @file\r |
2 | LzmaDec.c\r | |
3 | \r | |
4 | Based on LZMA SDK 4.65:\r | |
5 | LzmaDec.c -- LZMA Decoder\r | |
6 | 2008-11-06 : Igor Pavlov : Public domain\r | |
7 | \r | |
180a5a35 HT |
8 | Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>\r |
9 | This program and the accompanying materials\r | |
306bf4e2 | 10 | are licensed and made available under the terms and conditions of the BSD License\r |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
17 | **/\r | |
18 | \r | |
19 | #include "LzmaDec.h"\r | |
20 | \r | |
21 | #ifndef EFIAPI\r | |
22 | \r | |
23 | #include <string.h>\r | |
24 | \r | |
25 | #endif // !EFIAPI\r | |
26 | \r | |
27 | #define kNumTopBits 24\r | |
28 | #define kTopValue ((UInt32)1 << kNumTopBits)\r | |
29 | \r | |
30 | #define kNumBitModelTotalBits 11\r | |
31 | #define kBitModelTotal (1 << kNumBitModelTotalBits)\r | |
32 | #define kNumMoveBits 5\r | |
33 | \r | |
34 | #define RC_INIT_SIZE 5\r | |
35 | \r | |
36 | #define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); }\r | |
37 | \r | |
38 | #define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)\r | |
39 | #define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));\r | |
40 | #define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits));\r | |
41 | #define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \\r | |
42 | { UPDATE_0(p); i = (i + i); A0; } else \\r | |
43 | { UPDATE_1(p); i = (i + i) + 1; A1; }\r | |
44 | #define GET_BIT(p, i) GET_BIT2(p, i, ; , ;)\r | |
45 | \r | |
46 | #define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); }\r | |
47 | #define TREE_DECODE(probs, limit, i) \\r | |
48 | { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; }\r | |
49 | \r | |
50 | /* #define _LZMA_SIZE_OPT */\r | |
51 | \r | |
52 | #ifdef _LZMA_SIZE_OPT\r | |
53 | #define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i)\r | |
54 | #else\r | |
55 | #define TREE_6_DECODE(probs, i) \\r | |
56 | { i = 1; \\r | |
57 | TREE_GET_BIT(probs, i); \\r | |
58 | TREE_GET_BIT(probs, i); \\r | |
59 | TREE_GET_BIT(probs, i); \\r | |
60 | TREE_GET_BIT(probs, i); \\r | |
61 | TREE_GET_BIT(probs, i); \\r | |
62 | TREE_GET_BIT(probs, i); \\r | |
63 | i -= 0x40; }\r | |
64 | #endif\r | |
65 | \r | |
66 | #define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); }\r | |
67 | \r | |
68 | #define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)\r | |
69 | #define UPDATE_0_CHECK range = bound;\r | |
70 | #define UPDATE_1_CHECK range -= bound; code -= bound;\r | |
71 | #define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \\r | |
72 | { UPDATE_0_CHECK; i = (i + i); A0; } else \\r | |
73 | { UPDATE_1_CHECK; i = (i + i) + 1; A1; }\r | |
74 | #define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;)\r | |
75 | #define TREE_DECODE_CHECK(probs, limit, i) \\r | |
76 | { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; }\r | |
77 | \r | |
78 | \r | |
79 | #define kNumPosBitsMax 4\r | |
80 | #define kNumPosStatesMax (1 << kNumPosBitsMax)\r | |
81 | \r | |
82 | #define kLenNumLowBits 3\r | |
83 | #define kLenNumLowSymbols (1 << kLenNumLowBits)\r | |
84 | #define kLenNumMidBits 3\r | |
85 | #define kLenNumMidSymbols (1 << kLenNumMidBits)\r | |
86 | #define kLenNumHighBits 8\r | |
87 | #define kLenNumHighSymbols (1 << kLenNumHighBits)\r | |
88 | \r | |
89 | #define LenChoice 0\r | |
90 | #define LenChoice2 (LenChoice + 1)\r | |
91 | #define LenLow (LenChoice2 + 1)\r | |
92 | #define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))\r | |
93 | #define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))\r | |
94 | #define kNumLenProbs (LenHigh + kLenNumHighSymbols)\r | |
95 | \r | |
96 | \r | |
97 | #define kNumStates 12\r | |
98 | #define kNumLitStates 7\r | |
99 | \r | |
100 | #define kStartPosModelIndex 4\r | |
101 | #define kEndPosModelIndex 14\r | |
102 | #define kNumFullDistances (1 << (kEndPosModelIndex >> 1))\r | |
103 | \r | |
104 | #define kNumPosSlotBits 6\r | |
105 | #define kNumLenToPosStates 4\r | |
106 | \r | |
107 | #define kNumAlignBits 4\r | |
108 | #define kAlignTableSize (1 << kNumAlignBits)\r | |
109 | \r | |
110 | #define kMatchMinLen 2\r | |
111 | #define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)\r | |
112 | \r | |
113 | #define IsMatch 0\r | |
114 | #define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))\r | |
115 | #define IsRepG0 (IsRep + kNumStates)\r | |
116 | #define IsRepG1 (IsRepG0 + kNumStates)\r | |
117 | #define IsRepG2 (IsRepG1 + kNumStates)\r | |
118 | #define IsRep0Long (IsRepG2 + kNumStates)\r | |
119 | #define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))\r | |
120 | #define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))\r | |
121 | #define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)\r | |
122 | #define LenCoder (Align + kAlignTableSize)\r | |
123 | #define RepLenCoder (LenCoder + kNumLenProbs)\r | |
124 | #define Literal (RepLenCoder + kNumLenProbs)\r | |
125 | \r | |
126 | #define LZMA_BASE_SIZE 1846\r | |
127 | #define LZMA_LIT_SIZE 768\r | |
128 | \r | |
129 | #define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))\r | |
130 | \r | |
131 | #if Literal != LZMA_BASE_SIZE\r | |
132 | StopCompilingDueBUG\r | |
133 | #endif\r | |
134 | \r | |
135 | static const Byte kLiteralNextStates[kNumStates * 2] =\r | |
136 | {\r | |
137 | 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5,\r | |
138 | 7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10\r | |
139 | };\r | |
140 | \r | |
141 | #define LZMA_DIC_MIN (1 << 12)\r | |
142 | \r | |
143 | /* First LZMA-symbol is always decoded.\r | |
144 | And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization\r | |
145 | Out:\r | |
146 | Result:\r | |
147 | SZ_OK - OK\r | |
148 | SZ_ERROR_DATA - Error\r | |
149 | p->remainLen:\r | |
150 | < kMatchSpecLenStart : normal remain\r | |
151 | = kMatchSpecLenStart : finished\r | |
152 | = kMatchSpecLenStart + 1 : Flush marker\r | |
153 | = kMatchSpecLenStart + 2 : State Init Marker\r | |
154 | */\r | |
155 | \r | |
156 | static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit)\r | |
157 | {\r | |
158 | CLzmaProb *probs = p->probs;\r | |
159 | \r | |
160 | unsigned state = p->state;\r | |
161 | UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];\r | |
162 | unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;\r | |
163 | unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;\r | |
164 | unsigned lc = p->prop.lc;\r | |
165 | \r | |
166 | Byte *dic = p->dic;\r | |
167 | SizeT dicBufSize = p->dicBufSize;\r | |
168 | SizeT dicPos = p->dicPos;\r | |
169 | \r | |
170 | UInt32 processedPos = p->processedPos;\r | |
171 | UInt32 checkDicSize = p->checkDicSize;\r | |
172 | unsigned len = 0;\r | |
173 | \r | |
174 | const Byte *buf = p->buf;\r | |
175 | UInt32 range = p->range;\r | |
176 | UInt32 code = p->code;\r | |
177 | \r | |
178 | do\r | |
179 | {\r | |
180 | CLzmaProb *prob;\r | |
181 | UInt32 bound;\r | |
182 | unsigned ttt;\r | |
183 | unsigned posState = processedPos & pbMask;\r | |
184 | \r | |
185 | prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;\r | |
186 | IF_BIT_0(prob)\r | |
187 | {\r | |
188 | unsigned symbol;\r | |
189 | UPDATE_0(prob);\r | |
190 | prob = probs + Literal;\r | |
191 | if (checkDicSize != 0 || processedPos != 0)\r | |
192 | prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +\r | |
193 | (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));\r | |
194 | \r | |
195 | if (state < kNumLitStates)\r | |
196 | {\r | |
197 | symbol = 1;\r | |
198 | do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);\r | |
199 | }\r | |
200 | else\r | |
201 | {\r | |
202 | unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];\r | |
203 | unsigned offs = 0x100;\r | |
204 | symbol = 1;\r | |
205 | do\r | |
206 | {\r | |
207 | unsigned bit;\r | |
208 | CLzmaProb *probLit;\r | |
209 | matchByte <<= 1;\r | |
210 | bit = (matchByte & offs);\r | |
211 | probLit = prob + offs + bit + symbol;\r | |
212 | GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)\r | |
213 | }\r | |
214 | while (symbol < 0x100);\r | |
215 | }\r | |
216 | dic[dicPos++] = (Byte)symbol;\r | |
217 | processedPos++;\r | |
218 | \r | |
219 | state = kLiteralNextStates[state];\r | |
220 | /* if (state < 4) state = 0; else if (state < 10) state -= 3; else state -= 6; */\r | |
221 | continue;\r | |
222 | }\r | |
223 | else\r | |
224 | {\r | |
225 | UPDATE_1(prob);\r | |
226 | prob = probs + IsRep + state;\r | |
227 | IF_BIT_0(prob)\r | |
228 | {\r | |
229 | UPDATE_0(prob);\r | |
230 | state += kNumStates;\r | |
231 | prob = probs + LenCoder;\r | |
232 | }\r | |
233 | else\r | |
234 | {\r | |
235 | UPDATE_1(prob);\r | |
236 | if (checkDicSize == 0 && processedPos == 0)\r | |
237 | return SZ_ERROR_DATA;\r | |
238 | prob = probs + IsRepG0 + state;\r | |
239 | IF_BIT_0(prob)\r | |
240 | {\r | |
241 | UPDATE_0(prob);\r | |
242 | prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;\r | |
243 | IF_BIT_0(prob)\r | |
244 | {\r | |
245 | UPDATE_0(prob);\r | |
246 | dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];\r | |
247 | dicPos++;\r | |
248 | processedPos++;\r | |
249 | state = state < kNumLitStates ? 9 : 11;\r | |
250 | continue;\r | |
251 | }\r | |
252 | UPDATE_1(prob);\r | |
253 | }\r | |
254 | else\r | |
255 | {\r | |
256 | UInt32 distance;\r | |
257 | UPDATE_1(prob);\r | |
258 | prob = probs + IsRepG1 + state;\r | |
259 | IF_BIT_0(prob)\r | |
260 | {\r | |
261 | UPDATE_0(prob);\r | |
262 | distance = rep1;\r | |
263 | }\r | |
264 | else\r | |
265 | {\r | |
266 | UPDATE_1(prob);\r | |
267 | prob = probs + IsRepG2 + state;\r | |
268 | IF_BIT_0(prob)\r | |
269 | {\r | |
270 | UPDATE_0(prob);\r | |
271 | distance = rep2;\r | |
272 | }\r | |
273 | else\r | |
274 | {\r | |
275 | UPDATE_1(prob);\r | |
276 | distance = rep3;\r | |
277 | rep3 = rep2;\r | |
278 | }\r | |
279 | rep2 = rep1;\r | |
280 | }\r | |
281 | rep1 = rep0;\r | |
282 | rep0 = distance;\r | |
283 | }\r | |
284 | state = state < kNumLitStates ? 8 : 11;\r | |
285 | prob = probs + RepLenCoder;\r | |
286 | }\r | |
287 | {\r | |
288 | unsigned limit2, offset;\r | |
289 | CLzmaProb *probLen = prob + LenChoice;\r | |
290 | IF_BIT_0(probLen)\r | |
291 | {\r | |
292 | UPDATE_0(probLen);\r | |
293 | probLen = prob + LenLow + (posState << kLenNumLowBits);\r | |
294 | offset = 0;\r | |
295 | limit2 = (1 << kLenNumLowBits);\r | |
296 | }\r | |
297 | else\r | |
298 | {\r | |
299 | UPDATE_1(probLen);\r | |
300 | probLen = prob + LenChoice2;\r | |
301 | IF_BIT_0(probLen)\r | |
302 | {\r | |
303 | UPDATE_0(probLen);\r | |
304 | probLen = prob + LenMid + (posState << kLenNumMidBits);\r | |
305 | offset = kLenNumLowSymbols;\r | |
306 | limit2 = (1 << kLenNumMidBits);\r | |
307 | }\r | |
308 | else\r | |
309 | {\r | |
310 | UPDATE_1(probLen);\r | |
311 | probLen = prob + LenHigh;\r | |
312 | offset = kLenNumLowSymbols + kLenNumMidSymbols;\r | |
313 | limit2 = (1 << kLenNumHighBits);\r | |
314 | }\r | |
315 | }\r | |
316 | TREE_DECODE(probLen, limit2, len);\r | |
317 | len += offset;\r | |
318 | }\r | |
319 | \r | |
320 | if (state >= kNumStates)\r | |
321 | {\r | |
322 | UInt32 distance;\r | |
323 | prob = probs + PosSlot +\r | |
324 | ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits);\r | |
325 | TREE_6_DECODE(prob, distance);\r | |
326 | if (distance >= kStartPosModelIndex)\r | |
327 | {\r | |
328 | unsigned posSlot = (unsigned)distance;\r | |
329 | int numDirectBits = (int)(((distance >> 1) - 1));\r | |
330 | distance = (2 | (distance & 1));\r | |
331 | if (posSlot < kEndPosModelIndex)\r | |
332 | {\r | |
333 | distance <<= numDirectBits;\r | |
334 | prob = probs + SpecPos + distance - posSlot - 1;\r | |
335 | {\r | |
336 | UInt32 mask = 1;\r | |
337 | unsigned i = 1;\r | |
338 | do\r | |
339 | {\r | |
340 | GET_BIT2(prob + i, i, ; , distance |= mask);\r | |
341 | mask <<= 1;\r | |
342 | }\r | |
343 | while (--numDirectBits != 0);\r | |
344 | }\r | |
345 | }\r | |
346 | else\r | |
347 | {\r | |
348 | numDirectBits -= kNumAlignBits;\r | |
349 | do\r | |
350 | {\r | |
351 | NORMALIZE\r | |
352 | range >>= 1;\r | |
353 | \r | |
354 | {\r | |
355 | UInt32 t;\r | |
356 | code -= range;\r | |
357 | t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */\r | |
358 | distance = (distance << 1) + (t + 1);\r | |
359 | code += range & t;\r | |
360 | }\r | |
361 | /*\r | |
362 | distance <<= 1;\r | |
363 | if (code >= range)\r | |
364 | {\r | |
365 | code -= range;\r | |
366 | distance |= 1;\r | |
367 | }\r | |
368 | */\r | |
369 | }\r | |
370 | while (--numDirectBits != 0);\r | |
371 | prob = probs + Align;\r | |
372 | distance <<= kNumAlignBits;\r | |
373 | {\r | |
374 | unsigned i = 1;\r | |
375 | GET_BIT2(prob + i, i, ; , distance |= 1);\r | |
376 | GET_BIT2(prob + i, i, ; , distance |= 2);\r | |
377 | GET_BIT2(prob + i, i, ; , distance |= 4);\r | |
378 | GET_BIT2(prob + i, i, ; , distance |= 8);\r | |
379 | }\r | |
380 | if (distance == (UInt32)0xFFFFFFFF)\r | |
381 | {\r | |
382 | len += kMatchSpecLenStart;\r | |
383 | state -= kNumStates;\r | |
384 | break;\r | |
385 | }\r | |
386 | }\r | |
387 | }\r | |
388 | rep3 = rep2;\r | |
389 | rep2 = rep1;\r | |
390 | rep1 = rep0;\r | |
391 | rep0 = distance + 1;\r | |
392 | if (checkDicSize == 0)\r | |
393 | {\r | |
394 | if (distance >= processedPos)\r | |
395 | return SZ_ERROR_DATA;\r | |
396 | }\r | |
397 | else if (distance >= checkDicSize)\r | |
398 | return SZ_ERROR_DATA;\r | |
399 | state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;\r | |
400 | /* state = kLiteralNextStates[state]; */\r | |
401 | }\r | |
402 | \r | |
403 | len += kMatchMinLen;\r | |
404 | \r | |
405 | if (limit == dicPos)\r | |
406 | return SZ_ERROR_DATA;\r | |
407 | {\r | |
408 | SizeT rem = limit - dicPos;\r | |
409 | unsigned curLen = ((rem < len) ? (unsigned)rem : len);\r | |
410 | SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);\r | |
411 | \r | |
412 | processedPos += curLen;\r | |
413 | \r | |
414 | len -= curLen;\r | |
415 | if (pos + curLen <= dicBufSize)\r | |
416 | {\r | |
417 | Byte *dest = dic + dicPos;\r | |
418 | ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;\r | |
419 | const Byte *lim = dest + curLen;\r | |
420 | dicPos += curLen;\r | |
421 | do\r | |
422 | *(dest) = (Byte)*(dest + src);\r | |
423 | while (++dest != lim);\r | |
424 | }\r | |
425 | else\r | |
426 | {\r | |
427 | do\r | |
428 | {\r | |
429 | dic[dicPos++] = dic[pos];\r | |
430 | if (++pos == dicBufSize)\r | |
431 | pos = 0;\r | |
432 | }\r | |
433 | while (--curLen != 0);\r | |
434 | }\r | |
435 | }\r | |
436 | }\r | |
437 | }\r | |
438 | while (dicPos < limit && buf < bufLimit);\r | |
439 | NORMALIZE;\r | |
440 | p->buf = buf;\r | |
441 | p->range = range;\r | |
442 | p->code = code;\r | |
443 | p->remainLen = len;\r | |
444 | p->dicPos = dicPos;\r | |
445 | p->processedPos = processedPos;\r | |
446 | p->reps[0] = rep0;\r | |
447 | p->reps[1] = rep1;\r | |
448 | p->reps[2] = rep2;\r | |
449 | p->reps[3] = rep3;\r | |
450 | p->state = state;\r | |
451 | \r | |
452 | return SZ_OK;\r | |
453 | }\r | |
454 | \r | |
455 | static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)\r | |
456 | {\r | |
457 | if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)\r | |
458 | {\r | |
459 | Byte *dic = p->dic;\r | |
460 | SizeT dicPos = p->dicPos;\r | |
461 | SizeT dicBufSize = p->dicBufSize;\r | |
462 | unsigned len = p->remainLen;\r | |
463 | UInt32 rep0 = p->reps[0];\r | |
464 | if (limit - dicPos < len)\r | |
465 | len = (unsigned)(limit - dicPos);\r | |
466 | \r | |
467 | if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)\r | |
468 | p->checkDicSize = p->prop.dicSize;\r | |
469 | \r | |
470 | p->processedPos += len;\r | |
471 | p->remainLen -= len;\r | |
472 | while (len-- != 0)\r | |
473 | {\r | |
474 | dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];\r | |
475 | dicPos++;\r | |
476 | }\r | |
477 | p->dicPos = dicPos;\r | |
478 | }\r | |
479 | }\r | |
480 | \r | |
481 | static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit)\r | |
482 | {\r | |
483 | do\r | |
484 | {\r | |
485 | SizeT limit2 = limit;\r | |
486 | if (p->checkDicSize == 0)\r | |
487 | {\r | |
488 | UInt32 rem = p->prop.dicSize - p->processedPos;\r | |
489 | if (limit - p->dicPos > rem)\r | |
490 | limit2 = p->dicPos + rem;\r | |
491 | }\r | |
492 | RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));\r | |
493 | if (p->processedPos >= p->prop.dicSize)\r | |
494 | p->checkDicSize = p->prop.dicSize;\r | |
495 | LzmaDec_WriteRem(p, limit);\r | |
496 | }\r | |
497 | while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);\r | |
498 | \r | |
499 | if (p->remainLen > kMatchSpecLenStart)\r | |
500 | {\r | |
501 | p->remainLen = kMatchSpecLenStart;\r | |
502 | }\r | |
503 | return 0;\r | |
504 | }\r | |
505 | \r | |
506 | typedef enum\r | |
507 | {\r | |
508 | DUMMY_ERROR, /* unexpected end of input stream */\r | |
509 | DUMMY_LIT,\r | |
510 | DUMMY_MATCH,\r | |
511 | DUMMY_REP\r | |
512 | } ELzmaDummy;\r | |
513 | \r | |
514 | static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize)\r | |
515 | {\r | |
516 | UInt32 range = p->range;\r | |
517 | UInt32 code = p->code;\r | |
518 | const Byte *bufLimit = buf + inSize;\r | |
519 | CLzmaProb *probs = p->probs;\r | |
520 | unsigned state = p->state;\r | |
521 | ELzmaDummy res;\r | |
522 | \r | |
523 | {\r | |
524 | CLzmaProb *prob;\r | |
525 | UInt32 bound;\r | |
526 | unsigned ttt;\r | |
527 | unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);\r | |
528 | \r | |
529 | prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;\r | |
530 | IF_BIT_0_CHECK(prob)\r | |
531 | {\r | |
532 | UPDATE_0_CHECK\r | |
533 | \r | |
534 | /* if (bufLimit - buf >= 7) return DUMMY_LIT; */\r | |
535 | \r | |
536 | prob = probs + Literal;\r | |
537 | if (p->checkDicSize != 0 || p->processedPos != 0)\r | |
538 | prob += (LZMA_LIT_SIZE *\r | |
539 | ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) +\r | |
540 | (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc))));\r | |
541 | \r | |
542 | if (state < kNumLitStates)\r | |
543 | {\r | |
544 | unsigned symbol = 1;\r | |
545 | do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100);\r | |
546 | }\r | |
547 | else\r | |
548 | {\r | |
549 | unsigned matchByte = p->dic[p->dicPos - p->reps[0] +\r | |
550 | ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];\r | |
551 | unsigned offs = 0x100;\r | |
552 | unsigned symbol = 1;\r | |
553 | do\r | |
554 | {\r | |
555 | unsigned bit;\r | |
556 | CLzmaProb *probLit;\r | |
557 | matchByte <<= 1;\r | |
558 | bit = (matchByte & offs);\r | |
559 | probLit = prob + offs + bit + symbol;\r | |
560 | GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)\r | |
561 | }\r | |
562 | while (symbol < 0x100);\r | |
563 | }\r | |
564 | res = DUMMY_LIT;\r | |
565 | }\r | |
566 | else\r | |
567 | {\r | |
568 | unsigned len;\r | |
569 | UPDATE_1_CHECK;\r | |
570 | \r | |
571 | prob = probs + IsRep + state;\r | |
572 | IF_BIT_0_CHECK(prob)\r | |
573 | {\r | |
574 | UPDATE_0_CHECK;\r | |
575 | state = 0;\r | |
576 | prob = probs + LenCoder;\r | |
577 | res = DUMMY_MATCH;\r | |
578 | }\r | |
579 | else\r | |
580 | {\r | |
581 | UPDATE_1_CHECK;\r | |
582 | res = DUMMY_REP;\r | |
583 | prob = probs + IsRepG0 + state;\r | |
584 | IF_BIT_0_CHECK(prob)\r | |
585 | {\r | |
586 | UPDATE_0_CHECK;\r | |
587 | prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;\r | |
588 | IF_BIT_0_CHECK(prob)\r | |
589 | {\r | |
590 | UPDATE_0_CHECK;\r | |
591 | NORMALIZE_CHECK;\r | |
592 | return DUMMY_REP;\r | |
593 | }\r | |
594 | else\r | |
595 | {\r | |
596 | UPDATE_1_CHECK;\r | |
597 | }\r | |
598 | }\r | |
599 | else\r | |
600 | {\r | |
601 | UPDATE_1_CHECK;\r | |
602 | prob = probs + IsRepG1 + state;\r | |
603 | IF_BIT_0_CHECK(prob)\r | |
604 | {\r | |
605 | UPDATE_0_CHECK;\r | |
606 | }\r | |
607 | else\r | |
608 | {\r | |
609 | UPDATE_1_CHECK;\r | |
610 | prob = probs + IsRepG2 + state;\r | |
611 | IF_BIT_0_CHECK(prob)\r | |
612 | {\r | |
613 | UPDATE_0_CHECK;\r | |
614 | }\r | |
615 | else\r | |
616 | {\r | |
617 | UPDATE_1_CHECK;\r | |
618 | }\r | |
619 | }\r | |
620 | }\r | |
621 | state = kNumStates;\r | |
622 | prob = probs + RepLenCoder;\r | |
623 | }\r | |
624 | {\r | |
625 | unsigned limit, offset;\r | |
626 | CLzmaProb *probLen = prob + LenChoice;\r | |
627 | IF_BIT_0_CHECK(probLen)\r | |
628 | {\r | |
629 | UPDATE_0_CHECK;\r | |
630 | probLen = prob + LenLow + (posState << kLenNumLowBits);\r | |
631 | offset = 0;\r | |
632 | limit = 1 << kLenNumLowBits;\r | |
633 | }\r | |
634 | else\r | |
635 | {\r | |
636 | UPDATE_1_CHECK;\r | |
637 | probLen = prob + LenChoice2;\r | |
638 | IF_BIT_0_CHECK(probLen)\r | |
639 | {\r | |
640 | UPDATE_0_CHECK;\r | |
641 | probLen = prob + LenMid + (posState << kLenNumMidBits);\r | |
642 | offset = kLenNumLowSymbols;\r | |
643 | limit = 1 << kLenNumMidBits;\r | |
644 | }\r | |
645 | else\r | |
646 | {\r | |
647 | UPDATE_1_CHECK;\r | |
648 | probLen = prob + LenHigh;\r | |
649 | offset = kLenNumLowSymbols + kLenNumMidSymbols;\r | |
650 | limit = 1 << kLenNumHighBits;\r | |
651 | }\r | |
652 | }\r | |
653 | TREE_DECODE_CHECK(probLen, limit, len);\r | |
654 | len += offset;\r | |
655 | }\r | |
656 | \r | |
657 | if (state < 4)\r | |
658 | {\r | |
659 | unsigned posSlot;\r | |
660 | prob = probs + PosSlot +\r | |
661 | ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<\r | |
662 | kNumPosSlotBits);\r | |
663 | TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);\r | |
664 | if (posSlot >= kStartPosModelIndex)\r | |
665 | {\r | |
666 | int numDirectBits = ((posSlot >> 1) - 1);\r | |
667 | \r | |
668 | /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */\r | |
669 | \r | |
670 | if (posSlot < kEndPosModelIndex)\r | |
671 | {\r | |
672 | prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1;\r | |
673 | }\r | |
674 | else\r | |
675 | {\r | |
676 | numDirectBits -= kNumAlignBits;\r | |
677 | do\r | |
678 | {\r | |
679 | NORMALIZE_CHECK\r | |
680 | range >>= 1;\r | |
681 | code -= range & (((code - range) >> 31) - 1);\r | |
682 | /* if (code >= range) code -= range; */\r | |
683 | }\r | |
684 | while (--numDirectBits != 0);\r | |
685 | prob = probs + Align;\r | |
686 | numDirectBits = kNumAlignBits;\r | |
687 | }\r | |
688 | {\r | |
689 | unsigned i = 1;\r | |
690 | do\r | |
691 | {\r | |
692 | GET_BIT_CHECK(prob + i, i);\r | |
693 | }\r | |
694 | while (--numDirectBits != 0);\r | |
695 | }\r | |
696 | }\r | |
697 | }\r | |
698 | }\r | |
699 | }\r | |
700 | NORMALIZE_CHECK;\r | |
701 | return res;\r | |
702 | }\r | |
703 | \r | |
704 | static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data)\r | |
705 | {\r | |
706 | p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]);\r | |
707 | p->range = 0xFFFFFFFF;\r | |
708 | p->needFlush = 0;\r | |
709 | }\r | |
710 | \r | |
711 | void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)\r | |
712 | {\r | |
713 | p->needFlush = 1;\r | |
714 | p->remainLen = 0;\r | |
715 | p->tempBufSize = 0;\r | |
716 | \r | |
717 | if (initDic)\r | |
718 | {\r | |
719 | p->processedPos = 0;\r | |
720 | p->checkDicSize = 0;\r | |
721 | p->needInitState = 1;\r | |
722 | }\r | |
723 | if (initState)\r | |
724 | p->needInitState = 1;\r | |
725 | }\r | |
726 | \r | |
727 | void LzmaDec_Init(CLzmaDec *p)\r | |
728 | {\r | |
729 | p->dicPos = 0;\r | |
730 | LzmaDec_InitDicAndState(p, True, True);\r | |
731 | }\r | |
732 | \r | |
733 | static void LzmaDec_InitStateReal(CLzmaDec *p)\r | |
734 | {\r | |
735 | UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp));\r | |
736 | UInt32 i;\r | |
737 | CLzmaProb *probs = p->probs;\r | |
738 | for (i = 0; i < numProbs; i++)\r | |
739 | probs[i] = kBitModelTotal >> 1;\r | |
740 | p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;\r | |
741 | p->state = 0;\r | |
742 | p->needInitState = 0;\r | |
743 | }\r | |
744 | \r | |
745 | SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,\r | |
746 | ELzmaFinishMode finishMode, ELzmaStatus *status)\r | |
747 | {\r | |
748 | SizeT inSize = *srcLen;\r | |
749 | (*srcLen) = 0;\r | |
750 | LzmaDec_WriteRem(p, dicLimit);\r | |
751 | \r | |
752 | *status = LZMA_STATUS_NOT_SPECIFIED;\r | |
753 | \r | |
754 | while (p->remainLen != kMatchSpecLenStart)\r | |
755 | {\r | |
756 | int checkEndMarkNow;\r | |
757 | \r | |
758 | if (p->needFlush != 0)\r | |
759 | {\r | |
760 | for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)\r | |
761 | p->tempBuf[p->tempBufSize++] = *src++;\r | |
762 | if (p->tempBufSize < RC_INIT_SIZE)\r | |
763 | {\r | |
764 | *status = LZMA_STATUS_NEEDS_MORE_INPUT;\r | |
765 | return SZ_OK;\r | |
766 | }\r | |
767 | if (p->tempBuf[0] != 0)\r | |
768 | return SZ_ERROR_DATA;\r | |
769 | \r | |
770 | LzmaDec_InitRc(p, p->tempBuf);\r | |
771 | p->tempBufSize = 0;\r | |
772 | }\r | |
773 | \r | |
774 | checkEndMarkNow = 0;\r | |
775 | if (p->dicPos >= dicLimit)\r | |
776 | {\r | |
777 | if (p->remainLen == 0 && p->code == 0)\r | |
778 | {\r | |
779 | *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK;\r | |
780 | return SZ_OK;\r | |
781 | }\r | |
782 | if (finishMode == LZMA_FINISH_ANY)\r | |
783 | {\r | |
784 | *status = LZMA_STATUS_NOT_FINISHED;\r | |
785 | return SZ_OK;\r | |
786 | }\r | |
787 | if (p->remainLen != 0)\r | |
788 | {\r | |
789 | *status = LZMA_STATUS_NOT_FINISHED;\r | |
790 | return SZ_ERROR_DATA;\r | |
791 | }\r | |
792 | checkEndMarkNow = 1;\r | |
793 | }\r | |
794 | \r | |
795 | if (p->needInitState)\r | |
796 | LzmaDec_InitStateReal(p);\r | |
797 | \r | |
798 | if (p->tempBufSize == 0)\r | |
799 | {\r | |
800 | SizeT processed;\r | |
801 | const Byte *bufLimit;\r | |
802 | if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)\r | |
803 | {\r | |
804 | int dummyRes = LzmaDec_TryDummy(p, src, inSize);\r | |
805 | if (dummyRes == DUMMY_ERROR)\r | |
806 | {\r | |
807 | memcpy(p->tempBuf, src, inSize);\r | |
808 | p->tempBufSize = (unsigned)inSize;\r | |
809 | (*srcLen) += inSize;\r | |
810 | *status = LZMA_STATUS_NEEDS_MORE_INPUT;\r | |
811 | return SZ_OK;\r | |
812 | }\r | |
813 | if (checkEndMarkNow && dummyRes != DUMMY_MATCH)\r | |
814 | {\r | |
815 | *status = LZMA_STATUS_NOT_FINISHED;\r | |
816 | return SZ_ERROR_DATA;\r | |
817 | }\r | |
818 | bufLimit = src;\r | |
819 | }\r | |
820 | else\r | |
821 | bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX;\r | |
822 | p->buf = src;\r | |
823 | if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0)\r | |
824 | return SZ_ERROR_DATA;\r | |
825 | processed = (SizeT)(p->buf - src);\r | |
826 | (*srcLen) += processed;\r | |
827 | src += processed;\r | |
828 | inSize -= processed;\r | |
829 | }\r | |
830 | else\r | |
831 | {\r | |
832 | unsigned rem = p->tempBufSize, lookAhead = 0;\r | |
833 | while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize)\r | |
834 | p->tempBuf[rem++] = src[lookAhead++];\r | |
835 | p->tempBufSize = rem;\r | |
836 | if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)\r | |
837 | {\r | |
838 | int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);\r | |
839 | if (dummyRes == DUMMY_ERROR)\r | |
840 | {\r | |
841 | (*srcLen) += lookAhead;\r | |
842 | *status = LZMA_STATUS_NEEDS_MORE_INPUT;\r | |
843 | return SZ_OK;\r | |
844 | }\r | |
845 | if (checkEndMarkNow && dummyRes != DUMMY_MATCH)\r | |
846 | {\r | |
847 | *status = LZMA_STATUS_NOT_FINISHED;\r | |
848 | return SZ_ERROR_DATA;\r | |
849 | }\r | |
850 | }\r | |
851 | p->buf = p->tempBuf;\r | |
852 | if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)\r | |
853 | return SZ_ERROR_DATA;\r | |
854 | lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));\r | |
855 | (*srcLen) += lookAhead;\r | |
856 | src += lookAhead;\r | |
857 | inSize -= lookAhead;\r | |
858 | p->tempBufSize = 0;\r | |
859 | }\r | |
860 | }\r | |
861 | if (p->code == 0)\r | |
862 | *status = LZMA_STATUS_FINISHED_WITH_MARK;\r | |
863 | return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;\r | |
864 | }\r | |
865 | \r | |
866 | SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)\r | |
867 | {\r | |
868 | SizeT outSize = *destLen;\r | |
869 | SizeT inSize = *srcLen;\r | |
870 | *srcLen = *destLen = 0;\r | |
871 | for (;;)\r | |
872 | {\r | |
873 | SizeT inSizeCur = inSize, outSizeCur, dicPos;\r | |
874 | ELzmaFinishMode curFinishMode;\r | |
875 | SRes res;\r | |
876 | if (p->dicPos == p->dicBufSize)\r | |
877 | p->dicPos = 0;\r | |
878 | dicPos = p->dicPos;\r | |
879 | if (outSize > p->dicBufSize - dicPos)\r | |
880 | {\r | |
881 | outSizeCur = p->dicBufSize;\r | |
882 | curFinishMode = LZMA_FINISH_ANY;\r | |
883 | }\r | |
884 | else\r | |
885 | {\r | |
886 | outSizeCur = dicPos + outSize;\r | |
887 | curFinishMode = finishMode;\r | |
888 | }\r | |
889 | \r | |
890 | res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status);\r | |
891 | src += inSizeCur;\r | |
892 | inSize -= inSizeCur;\r | |
893 | *srcLen += inSizeCur;\r | |
894 | outSizeCur = p->dicPos - dicPos;\r | |
895 | memcpy(dest, p->dic + dicPos, outSizeCur);\r | |
896 | dest += outSizeCur;\r | |
897 | outSize -= outSizeCur;\r | |
898 | *destLen += outSizeCur;\r | |
899 | if (res != 0)\r | |
900 | return res;\r | |
901 | if (outSizeCur == 0 || outSize == 0)\r | |
902 | return SZ_OK;\r | |
903 | }\r | |
904 | }\r | |
905 | \r | |
906 | void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)\r | |
907 | {\r | |
908 | alloc->Free(alloc, p->probs);\r | |
909 | p->probs = 0;\r | |
910 | }\r | |
911 | \r | |
912 | static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc)\r | |
913 | {\r | |
914 | alloc->Free(alloc, p->dic);\r | |
915 | p->dic = 0;\r | |
916 | }\r | |
917 | \r | |
918 | void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)\r | |
919 | {\r | |
920 | LzmaDec_FreeProbs(p, alloc);\r | |
921 | LzmaDec_FreeDict(p, alloc);\r | |
922 | }\r | |
923 | \r | |
924 | SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)\r | |
925 | {\r | |
926 | UInt32 dicSize;\r | |
927 | Byte d;\r | |
928 | \r | |
929 | if (size < LZMA_PROPS_SIZE)\r | |
930 | return SZ_ERROR_UNSUPPORTED;\r | |
931 | else\r | |
932 | dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24);\r | |
933 | \r | |
934 | if (dicSize < LZMA_DIC_MIN)\r | |
935 | dicSize = LZMA_DIC_MIN;\r | |
936 | p->dicSize = dicSize;\r | |
937 | \r | |
938 | d = data[0];\r | |
939 | if (d >= (9 * 5 * 5))\r | |
940 | return SZ_ERROR_UNSUPPORTED;\r | |
941 | \r | |
942 | p->lc = d % 9;\r | |
943 | d /= 9;\r | |
944 | p->pb = d / 5;\r | |
945 | p->lp = d % 5;\r | |
946 | \r | |
947 | return SZ_OK;\r | |
948 | }\r | |
949 | \r | |
950 | static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc)\r | |
951 | {\r | |
952 | UInt32 numProbs = LzmaProps_GetNumProbs(propNew);\r | |
953 | if (p->probs == 0 || numProbs != p->numProbs)\r | |
954 | {\r | |
955 | LzmaDec_FreeProbs(p, alloc);\r | |
956 | p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb));\r | |
957 | p->numProbs = numProbs;\r | |
958 | if (p->probs == 0)\r | |
959 | return SZ_ERROR_MEM;\r | |
960 | }\r | |
961 | return SZ_OK;\r | |
962 | }\r | |
963 | \r | |
964 | SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)\r | |
965 | {\r | |
966 | CLzmaProps propNew;\r | |
967 | RINOK(LzmaProps_Decode(&propNew, props, propsSize));\r | |
968 | RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));\r | |
969 | p->prop = propNew;\r | |
970 | return SZ_OK;\r | |
971 | }\r | |
972 | \r | |
973 | SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)\r | |
974 | {\r | |
975 | CLzmaProps propNew;\r | |
976 | SizeT dicBufSize;\r | |
977 | RINOK(LzmaProps_Decode(&propNew, props, propsSize));\r | |
978 | RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));\r | |
979 | dicBufSize = propNew.dicSize;\r | |
980 | if (p->dic == 0 || dicBufSize != p->dicBufSize)\r | |
981 | {\r | |
982 | LzmaDec_FreeDict(p, alloc);\r | |
983 | p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);\r | |
984 | if (p->dic == 0)\r | |
985 | {\r | |
986 | LzmaDec_FreeProbs(p, alloc);\r | |
987 | return SZ_ERROR_MEM;\r | |
988 | }\r | |
989 | }\r | |
990 | p->dicBufSize = dicBufSize;\r | |
991 | p->prop = propNew;\r | |
992 | return SZ_OK;\r | |
993 | }\r | |
994 | \r | |
995 | SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,\r | |
996 | const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,\r | |
997 | ELzmaStatus *status, ISzAlloc *alloc)\r | |
998 | {\r | |
999 | CLzmaDec p;\r | |
1000 | SRes res;\r | |
1001 | SizeT inSize = *srcLen;\r | |
1002 | SizeT outSize = *destLen;\r | |
1003 | *srcLen = *destLen = 0;\r | |
1004 | if (inSize < RC_INIT_SIZE)\r | |
1005 | return SZ_ERROR_INPUT_EOF;\r | |
1006 | \r | |
1007 | LzmaDec_Construct(&p);\r | |
1008 | res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc);\r | |
1009 | if (res != 0)\r | |
1010 | return res;\r | |
1011 | p.dic = dest;\r | |
1012 | p.dicBufSize = outSize;\r | |
1013 | \r | |
1014 | LzmaDec_Init(&p);\r | |
1015 | \r | |
1016 | *srcLen = inSize;\r | |
1017 | res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);\r | |
1018 | \r | |
1019 | if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)\r | |
1020 | res = SZ_ERROR_INPUT_EOF;\r | |
1021 | \r | |
1022 | (*destLen) = p.dicPos;\r | |
1023 | LzmaDec_FreeProbs(&p, alloc);\r | |
1024 | return res;\r | |
1025 | }\r | |
1026 | \r |