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-rw-r--r--Build/source/utils/lzma-utils/src/liblzmadec/main.c733
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diff --git a/Build/source/utils/lzma-utils/src/liblzmadec/main.c b/Build/source/utils/lzma-utils/src/liblzmadec/main.c
deleted file mode 100644
index 9ce4458f12a..00000000000
--- a/Build/source/utils/lzma-utils/src/liblzmadec/main.c
+++ /dev/null
@@ -1,733 +0,0 @@
-/******************************************************************************
-
- LZMA decoder library with a zlib like API
-
- Copyright (C) 1999-2005 Igor Pavlov (http://7-zip.org/)
- Copyright (C) 2005 Lasse Collin <lasse.collin@tukaani.org>
- Based on zlib.h and bzlib.h. FIXME
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
-******************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/* FIXME DEBUG */
-#include <stdio.h>
-
-#include <stdlib.h>
-#include <inttypes.h>
-#include <string.h>
-#include <assert.h>
-#include "lzmadec.h"
-#include "private.h"
-
-#ifndef UINT64_MAX
-#define UINT64_MAX (~(uint64_t)0)
-#endif
-
-/* Cleaner way to refer to strm->state */
-#define STATE ((lzmadec_state*)(strm->state))
-
-static void *lzmadec_alloc (void *opaque, size_t nmemb, size_t size);
-static void lzmadec_free (void *opaque, void *addr);
-static int_fast8_t lzmadec_internal_init (lzmadec_stream *strm);
-static inline int_fast8_t lzmadec_decode_main (
- lzmadec_stream *strm,
- const int_fast8_t finish_decoding);
-static int_fast8_t lzmadec_header_properties (
- uint_fast8_t *pb,
- uint_fast8_t *lp,
- uint_fast8_t *lc,
- const uint8_t c);
-static int_fast8_t lzmadec_header_dictionary (
- uint_fast32_t *size,
- const uint8_t *buffer);
-static void lzmadec_header_uncompressed (
- uint_fast64_t *size,
- int_fast8_t *is_streamed,
- const uint8_t *buffer);
-
-
-/******************
- extern functions
- ******************/
-
-/* This function doesn't do much but it's here to be as close to zlib
- as possible. See lzmadec_internal_init for actual initialization. */
-extern int_fast8_t
-lzmadec_init (lzmadec_stream *strm)
-{
- /* Set the functions */
- if (strm->lzma_alloc == NULL)
- strm->lzma_alloc = lzmadec_alloc;
- if (strm->lzma_free == NULL)
- strm->lzma_free = lzmadec_free;
- strm->total_in = 0;
- strm->total_out = 0;
-
- /* Allocate memory for internal state structure */
- strm->state = (lzmadec_state*)((strm->lzma_alloc)(strm->opaque, 1,
- sizeof (lzmadec_state)));
- if (strm->state == NULL)
- return LZMADEC_MEM_ERROR;
- /* We will allocate memory and put the pointers in probs and
- dictionary later. Before that, make it clear that they contain
- no valid pointer yet. */
- STATE->probs = NULL;
- STATE->dictionary = NULL;
-
- /* Mark that the decoding engine is not yet initialized. */
- STATE->status = LZMADEC_STATUS_UNINITIALIZED;
-
- /* Initialize the internal data if there is enough input available */
- if (strm->avail_in >= LZMA_MINIMUM_COMPRESSED_FILE_SIZE) {
- return (lzmadec_internal_init (strm));
- }
-
- return LZMADEC_OK;
-}
-
-extern int_fast8_t
-lzmadec_decode (lzmadec_stream *strm, const int_fast8_t finish_decoding)
-{
- switch (STATE->status) {
- case LZMADEC_STATUS_UNINITIALIZED:
- if (strm->avail_in < LZMA_MINIMUM_COMPRESSED_FILE_SIZE)
- return LZMADEC_BUF_ERROR;
- if (lzmadec_internal_init (strm) != LZMADEC_OK)
- return LZMADEC_HEADER_ERROR;
- /* Fall through */
- case LZMADEC_STATUS_RUNNING:
- /* */
- if (strm->total_out < STATE->uncompressed_size)
- break;
- if (strm->total_out > STATE->uncompressed_size)
- return LZMADEC_DATA_ERROR;
- STATE->status = LZMADEC_STATUS_STREAM_END;
- /* Fall through */
- case LZMADEC_STATUS_FINISHING:
- /* Sanity check */
- if (!finish_decoding)
- return LZMADEC_SEQUENCE_ERROR;
- if (strm->total_out > STATE->uncompressed_size)
- return LZMADEC_DATA_ERROR;
- if (strm->total_out < STATE->uncompressed_size)
- break;
- /* Fall through */
- case LZMADEC_STATUS_STREAM_END:
- return LZMADEC_STREAM_END;
- case LZMADEC_STATUS_ERROR:
- default:
- return LZMADEC_SEQUENCE_ERROR;
- }
- /* Let's decode! */
- return (lzmadec_decode_main(strm, finish_decoding));
-}
-
-extern int_fast8_t
-lzmadec_end (lzmadec_stream *strm)
-{
- (strm->lzma_free)(strm->opaque, STATE->dictionary);
- STATE->dictionary = NULL;
- (strm->lzma_free)(strm->opaque, STATE->probs);
- STATE->probs = NULL;
- (strm->lzma_free)(strm->opaque, strm->state);
- strm->state = NULL;
- return LZMADEC_OK;
-}
-
-extern int_fast8_t
-lzmadec_buffer_info (lzmadec_info *info, const uint8_t *buffer,
- const size_t len)
-{
- /* LZMA header is 13 bytes long. */
- if (len < 13)
- return LZMADEC_BUF_ERROR;
- if (lzmadec_header_properties (&info->pb, &info->lp, &info->lc,
- buffer[0]) != LZMADEC_OK)
- return LZMADEC_HEADER_ERROR;
- if (LZMADEC_OK != lzmadec_header_dictionary (
- &info->dictionary_size, buffer + 1))
- return LZMADEC_HEADER_ERROR;
- lzmadec_header_uncompressed (&info->uncompressed_size,
- &info->is_streamed, buffer + 5);
- return LZMADEC_OK;
-}
-
-
-/*******************
- Memory allocation
- *******************/
-
-/* Default function for allocating memory */
-static void *
-lzmadec_alloc (void *opaque,
- size_t nmemb, size_t size)
-{
- return (malloc (nmemb * size)); /* No need to zero the memory. */
-}
-
-/* Default function for freeing memory */
-static void
-lzmadec_free (void *opaque, void *addr)
-{
- free (addr);
-}
-
-
-/****************
- Header parsing
- ****************/
-
-/* Parse the properties byte */
-static int_fast8_t
-lzmadec_header_properties (
- uint_fast8_t *pb, uint_fast8_t *lp, uint_fast8_t *lc, const uint8_t c)
-{
- /* pb, lp and lc are encoded into a single byte. */
- if (c > (9 * 5 * 5))
- return LZMADEC_HEADER_ERROR;
- *pb = c / (9 * 5); /* 0 <= pb <= 4 */
- *lp = (c % (9 * 5)) / 9; /* 0 <= lp <= 4 */
- *lc = c % 9; /* 0 <= lc <= 8 */
- assert (*pb < 5 && *lp < 5 && *lc < 9);
- return LZMADEC_OK;
-}
-
-/* Parse the dictionary size (4 bytes, little endian) */
-static int_fast8_t
-lzmadec_header_dictionary (uint_fast32_t *size, const uint8_t *buffer)
-{
- uint_fast32_t i;
- *size = 0;
- for (i = 0; i < 4; i++)
- *size += (uint_fast32_t)(*buffer++) << (i * 8);
- /* The dictionary size is limited to 256 MiB (checked from
- LZMA SDK 4.30) */
- if (*size > (1 << 28))
- return LZMADEC_HEADER_ERROR;
- return LZMADEC_OK;
-}
-
-/* Parse the uncompressed size field (8 bytes, little endian) */
-static void
-lzmadec_header_uncompressed (uint_fast64_t *size, int_fast8_t *is_streamed,
- const uint8_t *buffer)
-{
- /* Streamed files have all 64 bits set in the size field.
- We don't know the uncompressed size beforehand. */
- *is_streamed = 1; /* Assume streamed. */
- *size = 0;
- uint_fast32_t i;
- for (i = 0; i < 8; i++) {
- *size += (uint_fast64_t)buffer[i] << (i * 8);
- if (buffer[i] != 255)
- *is_streamed = 0;
- }
- assert ((*is_streamed == 1 && *size == UINT64_MAX)
- || (*is_streamed == 0 && *size < UINT64_MAX));
-}
-
-/* Because the LZMA decoder cannot be initialized in practice by
- lzmadec_decode_init(), lzmadec_internal_init()
- is run when lzmadec_decompress() is called the first time.
- lzmadec_decompress() provides the FIXME FIXME FIXME
- is because initialization needs to know how much to allocate memory.
- This function reads the first 18 (LZMA_MINIMUM_COMPRESSED_FILE_SIZE)
- bytes of an LZMA stream, parses it, allocates the required memory and
- initializes the internal variables to a good values. 18 bytes is also
- the size of the smallest possible LZMA encoded stream. */
-static int_fast8_t
-lzmadec_internal_init (lzmadec_stream *strm)
-{
- uint_fast32_t i;
- uint32_t num_probs;
-
- /* Make sure we have been called sanely */
- if (STATE->probs != NULL || STATE->dictionary != NULL
- || STATE->status != LZMADEC_STATUS_UNINITIALIZED)
- return LZMADEC_SEQUENCE_ERROR;
-
- /* Check that we have enough input */
- if (strm->avail_in < LZMA_MINIMUM_COMPRESSED_FILE_SIZE)
- return LZMADEC_BUF_ERROR;
-
- /* Parse the header (13 bytes) */
- /* - Properties (the first byte) */
- if (lzmadec_header_properties (&STATE->pb, &STATE->lp, &STATE->lc,
- *strm->next_in) != LZMADEC_OK)
- return LZMADEC_HEADER_ERROR;
-
- strm->next_in++;
- strm->avail_in--;
- /* - Calculate these right away: */
- STATE->pos_state_mask = (1 << STATE->pb) - 1;
- STATE->literal_pos_mask = (1 << STATE->lp) - 1;
- /* - Dictionary size */
- lzmadec_header_dictionary (&STATE->dictionary_size, strm->next_in);
- strm->next_in += 4;
- strm->avail_in -= 4;
- /* - Uncompressed size */
- lzmadec_header_uncompressed (&STATE->uncompressed_size,
- &STATE->streamed, strm->next_in);
- strm->next_in += 8;
- strm->avail_in -= 8;
-
- /* Allocate memory for internal data */
- const size_t lzmadec_num_probs = (LZMA_BASE_SIZE
- + (LZMA_LIT_SIZE << (STATE->lc + STATE->lp)));
- STATE->probs = (CProb *)((strm->lzma_alloc)(strm->opaque, 1,
- lzmadec_num_probs * sizeof(CProb)));
- if (STATE->probs == NULL)
- return LZMADEC_MEM_ERROR;
-
- /* When dictionary_size == 0, it must be set to 1. */
- if (STATE->dictionary_size == 0)
- STATE->dictionary_size = 1;
- /* Allocate dictionary */
- STATE->dictionary = (unsigned char*)((strm->lzma_alloc)(
- strm->opaque, 1, STATE->dictionary_size));
- if (STATE->dictionary == NULL) {
- /* First free() the memory allocated for internal data */
- (strm->lzma_free)(strm->opaque, STATE->probs);
- return LZMADEC_MEM_ERROR;
- }
-
- /* Initialize the internal data */
- num_probs = LZMA_BASE_SIZE
- + ((CProb)LZMA_LIT_SIZE << (STATE->lc + STATE->lp));
- for (i = 0; i < num_probs; i++)
- STATE->probs[i] = 1024; /* LZMA_BIT_MODEL_TOTAL >> 1; */
-
- /* Read the first five bytes of data and initialize STATE->code */
- STATE->code = 0;
- for (i = 0; i < 5; i++)
- STATE->code = (STATE->code << 8) | (uint32_t)(*strm->next_in++);
- strm->avail_in -= 5;
-
- /* Zero the buffer[] */
- memset (STATE->buffer, 0,
- LZMA_IN_BUFFER_SIZE + LZMA_REQUIRED_IN_BUFFER_SIZE);
-
- /* Set the initial static values */
- STATE->rep0 = 1;
- STATE->rep1 = 1;
- STATE->rep2 = 1;
- STATE->rep3 = 1;
- STATE->state = 0;
- strm->total_out = 0;
- STATE->distance_limit = 0;
- STATE->dictionary_position = 0;
- STATE->dictionary[STATE->dictionary_size - 1] = 0;
- STATE->buffer_size = 0;
- STATE->buffer_position = STATE->buffer;
- STATE->len = 0;
- STATE->range = 0xFFFFFFFF;
-
- /* Mark that initialization has been done */
- STATE->status = LZMADEC_STATUS_RUNNING;
-
- return LZMADEC_OK;
-}
-
-
-/*********************
- LZMA decoder engine
- *********************/
-
-/* Have a nice day! */
-
-#define RC_NORMALIZE \
- if (range < LZMA_TOP_VALUE) { \
- range <<= 8; \
- code = (code << 8) | *buffer++; \
- }
-
-#define IfBit0(p) \
- RC_NORMALIZE; \
- bound = (range >> LZMA_NUM_BIT_MODEL_TOTAL_BITS) * *(p); \
- if (code < bound)
-
-#define UpdateBit0(p) \
- range = bound; \
- *(p) += (LZMA_BIT_MODEL_TOTAL - *(p)) >> LZMA_NUM_MOVE_BITS;
-
-#define UpdateBit1(p) \
- range -= bound; \
- code -= bound; \
- *(p) -= (*(p)) >> LZMA_NUM_MOVE_BITS;
-
-#define RC_GET_BIT2(p, mi, A0, A1) \
- IfBit0(p) { \
- UpdateBit0(p); \
- mi <<= 1; \
- A0; \
- } else { \
- UpdateBit1(p); \
- mi = (mi + mi) + 1; \
- A1; \
- }
-
-#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)
-
-#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
- { \
- int i = numLevels; \
- res = 1; \
- do { \
- CProb *p = probs + res; \
- RC_GET_BIT(p, res) \
- } while(--i != 0); \
- res -= (1 << numLevels); \
- }
-
-static inline int_fast8_t
-lzmadec_decode_main (lzmadec_stream *strm, const int_fast8_t finish_decoding)
-{
- /* Split the *strm structure to separate _local_ variables.
- This improves readability a little. The major reason to do
- this is performance; at least with GCC 3.4.4 this makes
- the code about 30% faster! */
- /* strm-> */
- unsigned char *next_out = strm->next_out;
- unsigned char *next_in = strm->next_in;
- size_t avail_in = strm->avail_in;
- uint64_t total_out = strm->total_out;
- /* strm->state-> */
- const int_fast8_t lc = STATE->lc;
- const uint32_t pos_state_mask = STATE->pos_state_mask;
- const uint32_t literal_pos_mask = STATE->literal_pos_mask;
- const uint32_t dictionary_size = STATE->dictionary_size;
- unsigned char *dictionary = STATE->dictionary;
-/* int_fast8_t streamed;*/ /* boolean */
- CProb *p = STATE->probs;
- uint32_t range = STATE->range;
- uint32_t code = STATE->code;
- uint32_t dictionary_position = STATE->dictionary_position;
- uint32_t distance_limit = STATE->distance_limit;
- uint32_t rep0 = STATE->rep0;
- uint32_t rep1 = STATE->rep1;
- uint32_t rep2 = STATE->rep2;
- uint32_t rep3 = STATE->rep3;
- int state = STATE->state;
- int len = STATE->len;
- unsigned char *buffer_start = STATE->buffer;
- size_t buffer_size = STATE->buffer_size;
- /* Other variable initializations */
- int_fast8_t i; /* Temporary variable for loop indexing */
- unsigned char *next_out_end = next_out + strm->avail_out;
- unsigned char *buffer = STATE->buffer_position;
-
- /* This should have been verified in lzmadec_decode() already: */
- assert (STATE->uncompressed_size > total_out);
- /* With non-streamed LZMA stream the output has to be limited. */
- if (STATE->uncompressed_size - total_out < strm->avail_out) {
- next_out_end = next_out + (STATE->uncompressed_size - total_out);
- }
-
- /* The main loop */
- while (1) {
-assert (len >= 0);
-assert (state >= 0);
- /* Copy uncompressed data to next_out: */
- {
- unsigned char *foo = next_out;
- while (len != 0 && next_out != next_out_end) {
- uint32_t pos = dictionary_position - rep0;
- if (pos >= dictionary_size)
- pos += dictionary_size;
- *next_out++ = dictionary[dictionary_position] = dictionary[pos];
- if (++dictionary_position == dictionary_size)
- dictionary_position = 0;
- len--;
- }
- total_out += next_out - foo;
- }
-
- /* Fill the internal input buffer: */
- {
- size_t avail_buf;
- /* Check for overflow (invalid input) */
- if (buffer > buffer_start + LZMA_IN_BUFFER_SIZE)
- return LZMADEC_DATA_ERROR;
- /* Calculate how much data is unread in the buffer: */
- avail_buf = buffer_size - (buffer - buffer_start);
-
- /* Copy more data to the buffer if needed: */
- if (avail_buf < LZMA_REQUIRED_IN_BUFFER_SIZE) {
- const size_t copy_size = MIN (avail_in,
- LZMA_IN_BUFFER_SIZE - avail_buf);
- if (avail_buf > 0)
- memmove (buffer_start, buffer, avail_buf);
- memcpy (buffer_start + avail_buf,
- next_in, copy_size);
- buffer = buffer_start;
- next_in += copy_size;
- avail_in -= copy_size;
- buffer_size = avail_buf + copy_size;
- }
- }
-
- /* Decoder cannot continue if there is
- - no output space available
- - less data in the input buffer than a single decoder pass
- could consume; decoding is still continued if the callee
- has marked that all available input data has been given. */
- if ((next_out == next_out_end)
- || (!finish_decoding
- && buffer_size < LZMA_REQUIRED_IN_BUFFER_SIZE))
- break;
-
- assert (STATE->status != LZMADEC_STATUS_FINISHING);
-
- /* The rest of the main loop can at maximum
- - read at maximum of LZMA_REQUIRED_IN_BUFFER_SIZE bytes
- from the buffer[]
- - write one byte to next_out. */
- {
- CProb *prob;
- uint32_t bound;
- int_fast32_t posState = (int_fast32_t)(total_out & pos_state_mask);
- prob = p + LZMA_IS_MATCH + (state << LZMA_NUM_POS_BITS_MAX) + posState;
- IfBit0(prob) {
- int_fast32_t symbol = 1;
- UpdateBit0(prob)
- prob = p + LZMA_LITERAL + (LZMA_LIT_SIZE *
- (((total_out & literal_pos_mask) << lc)
- + ((dictionary_position != 0
- ? dictionary[dictionary_position - 1]
- : dictionary[dictionary_size - 1])
- >> (8 - lc))));
- if (state >= LZMA_NUM_LIT_STATES) {
- int_fast32_t matchByte;
- uint32_t pos = dictionary_position - rep0;
- if (pos >= dictionary_size)
- pos += dictionary_size;
- matchByte = dictionary[pos];
- do {
- int_fast32_t bit;
- CProb *probLit;
- matchByte <<= 1;
- bit = (matchByte & 0x100);
- probLit = prob + 0x100 + bit + symbol;
- RC_GET_BIT2(probLit, symbol,
- if (bit != 0) break,
- if (bit == 0) break)
- } while (symbol < 0x100);
- }
- while (symbol < 0x100) {
- CProb *probLit = prob + symbol;
- RC_GET_BIT(probLit, symbol)
- }
-
- if (distance_limit < dictionary_size)
- distance_limit++;
-
- /* Eliminate? */
- *next_out++ = dictionary[dictionary_position]
- = (char)symbol;
- if (++dictionary_position == dictionary_size)
- dictionary_position = 0;
- total_out++;
-
- if (state < 4)
- state = 0;
- else if (state < 10)
- state -= 3;
- else
- state -= 6;
-
- continue;
- }
-
- UpdateBit1(prob);
- prob = p + LZMA_IS_REP + state;
- IfBit0(prob) {
- UpdateBit0(prob);
- rep3 = rep2;
- rep2 = rep1;
- rep1 = rep0;
- state = state < LZMA_NUM_LIT_STATES ? 0 : 3;
- prob = p + LZMA_LEN_CODER;
- } else {
- UpdateBit1(prob);
- prob = p + LZMA_IS_REP_G0 + state;
- IfBit0(prob) {
- UpdateBit0(prob);
- prob = p + LZMA_IS_REP0_LONG + (state
- << LZMA_NUM_POS_BITS_MAX)
- + posState;
- IfBit0(prob) {
- UpdateBit0(prob);
- if (distance_limit == 0)
- return LZMADEC_DATA_ERROR;
- if (distance_limit < dictionary_size)
- distance_limit++;
- state = state < LZMA_NUM_LIT_STATES ? 9 : 11;
- len++;
- continue;
- } else {
- UpdateBit1(prob);
- }
- } else {
- uint32_t distance;
- UpdateBit1(prob);
- prob = p + LZMA_IS_REP_G1 + state;
- IfBit0(prob) {
- UpdateBit0(prob);
- distance = rep1;
- } else {
- UpdateBit1(prob);
- prob = p + LZMA_IS_REP_G2 + state;
- IfBit0(prob) {
- UpdateBit0(prob);
- distance = rep2;
- } else {
- UpdateBit1(prob);
- distance = rep3;
- rep3 = rep2;
- }
- rep2 = rep1;
- }
- rep1 = rep0;
- rep0 = distance;
- }
- state = state < LZMA_NUM_LIT_STATES ? 8 : 11;
- prob = p + LZMA_REP_LEN_CODER;
- }
-
- {
- int_fast32_t numBits, offset;
- CProb *probLen = prob + LZMA_LEN_CHOICE;
- IfBit0(probLen) {
- UpdateBit0(probLen);
- probLen = prob + LZMA_LEN_LOW
- + (posState
- << LZMA_LEN_NUM_LOW_BITS);
- offset = 0;
- numBits = LZMA_LEN_NUM_LOW_BITS;
- } else {
- UpdateBit1(probLen);
- probLen = prob + LZMA_LEN_CHOICE2;
- IfBit0(probLen) {
- UpdateBit0(probLen);
- probLen = prob + LZMA_LEN_MID
- + (posState
- << LZMA_LEN_NUM_MID_BITS);
- offset = LZMA_LEN_NUM_LOW_SYMBOLS;
- numBits = LZMA_LEN_NUM_MID_BITS;
- } else {
- UpdateBit1(probLen);
- probLen = prob + LZMA_LEN_HIGH;
- offset = LZMA_LEN_NUM_LOW_SYMBOLS
- + LZMA_LEN_NUM_MID_SYMBOLS;
- numBits = LZMA_LEN_NUM_HIGH_BITS;
- }
- }
- RangeDecoderBitTreeDecode(probLen, numBits, len);
- len += offset;
- }
-
- if (state < 4) {
- int_fast32_t posSlot;
- state += LZMA_NUM_LIT_STATES;
- prob = p + LZMA_POS_SLOT + (MIN (len,
- LZMA_NUM_LEN_TO_POS_STATES - 1)
- << LZMA_NUM_POS_SLOT_BITS);
- RangeDecoderBitTreeDecode(prob, LZMA_NUM_POS_SLOT_BITS, posSlot);
- if (posSlot >= LZMA_START_POS_MODEL_INDEX) {
- int_fast32_t numDirectBits = ((posSlot >> 1) - 1);
- rep0 = (2 | ((uint32_t)posSlot & 1));
- if (posSlot < LZMA_END_POS_MODEL_INDEX) {
- rep0 <<= numDirectBits;
- prob = p + LZMA_SPEC_POS + rep0 - posSlot - 1;
- } else {
- numDirectBits -= LZMA_NUM_ALIGN_BITS;
- do {
- RC_NORMALIZE
- range >>= 1;
- rep0 <<= 1;
- if (code >= range) {
- code -= range;
- rep0 |= 1;
- }
- } while (--numDirectBits != 0);
- prob = p + LZMA_ALIGN;
- rep0 <<= LZMA_NUM_ALIGN_BITS;
- numDirectBits = LZMA_NUM_ALIGN_BITS;
- }
- {
- i = 1;
- int_fast32_t mi = 1;
- do {
- CProb *prob3 = prob + mi;
- RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
- i <<= 1;
- } while(--numDirectBits != 0);
- }
- } else {
- rep0 = posSlot;
- }
- if (++rep0 == (uint32_t)(0)) {
- /* End of stream marker detected */
- STATE->status = LZMADEC_STATUS_STREAM_END;
- break;
- }
- }
-
- if (rep0 > distance_limit)
- return LZMADEC_DATA_ERROR;
-
- len += LZMA_MATCH_MIN_LEN;
- if (dictionary_size - distance_limit > (uint32_t)(len))
- distance_limit += len;
- else
- distance_limit = dictionary_size;
- }
- }
- RC_NORMALIZE;
-
- if (STATE->uncompressed_size < total_out) {
- STATE->status = LZMADEC_STATUS_ERROR;
- return LZMADEC_DATA_ERROR;
- }
-
- /* Store the saved values back to the lzmadec_stream structure. */
- strm->total_in += (strm->avail_in - avail_in);
- strm->total_out = total_out;
- strm->avail_in = avail_in;
- strm->avail_out -= (next_out - strm->next_out);
- strm->next_in = next_in;
- strm->next_out = next_out;
- STATE->range = range;
- STATE->code = code;
- STATE->rep0 = rep0;
- STATE->rep1 = rep1;
- STATE->rep2 = rep2;
- STATE->rep3 = rep3;
- STATE->state = state;
- STATE->len = len;
- STATE->dictionary_position = dictionary_position;
- STATE->distance_limit = distance_limit;
- STATE->buffer_size = buffer_size;
- STATE->buffer_position = buffer;
-
- if (STATE->status == LZMADEC_STATUS_STREAM_END
- || STATE->uncompressed_size == total_out) {
- STATE->status = LZMADEC_STATUS_STREAM_END;
- if (len == 0)
- return LZMADEC_STREAM_END;
- }
- return LZMADEC_OK;
-}