void LzmaMyDecoderInit(CLzmaDecoderState *vs, void *probsPtr,
void *dictionaryPtr)
{
vs->Probs = (CProb*)probsPtr;
vs->Dictionary = (unsigned char*)dictionaryPtr;
LzmaDecoderInit(vs);
}
int cli_LzmaInitUPX(CLI_LZMA **Lp, uint32_t dictsz) {
CLI_LZMA *L = *Lp;
if(!L) {
*Lp = L = cli_calloc(sizeof(*L), 1);
if(!L) {
return LZMA_RESULT_DATA_ERROR;
}
}
L->state.Properties.pb = 2; /* FIXME: these */
L->state.Properties.lp = 0; /* values may */
L->state.Properties.lc = 3; /* not be static */
L->state.Properties.DictionarySize = dictsz;
if (!(L->state.Probs = (CProb *)cli_malloc(LzmaGetNumProbs(&L->state.Properties) * sizeof(CProb))))
return LZMA_RESULT_DATA_ERROR;
if (!(L->state.Dictionary = (unsigned char *)cli_malloc(L->state.Properties.DictionarySize))) {
free(L->state.Probs);
return LZMA_RESULT_DATA_ERROR;
}
L->initted = 1;
LzmaDecoderInit(&L->state);
return LZMA_RESULT_OK;
}
int lzma_init(gzFile infile, struct LZMAFile **lzmaFile)
{
LZMAFile *inBuffer;
g_totalRead = 0;
*lzmaFile = inBuffer = (LZMAFile *)malloc(sizeof(struct LZMAFile));
if (inBuffer == NULL) return -1;
memset(inBuffer, 0, sizeof(LZMAFile));
inBuffer->File = infile;
inBuffer->InCallback.Read = LzmaReadCompressed;
inBuffer->waitEOS = 1;
/* Read LZMA properties for compressed stream */
if (!MyReadFileAndCheck(infile, inBuffer->properties, LZMA_PROPERTIES_SIZE))
return -1;
/* Read uncompressed size */
{
int i;
for (i = 0; i < 8; i++)
{
unsigned char b;
if (!MyReadFileAndCheck(infile, &b, 1))
return -1;
if (b != 0xFF)
inBuffer->waitEOS = 0;
if (i < 4)
inBuffer->outSize += (UInt32)(b) << (i * 8);
else
inBuffer->outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
}
}
/* Decode LZMA properties and allocate memory */
if (LzmaDecodeProperties(&(inBuffer->state.Properties), inBuffer->properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
{
PrintMessage("Incorrect stream properties");
return -1;
}
inBuffer->state.Probs = (CProb *)malloc(LzmaGetNumProbs(&(inBuffer->state.Properties)) * sizeof(CProb));
if (inBuffer->state.Probs == NULL) return -1;
inBuffer->state.Dictionary = (unsigned char *)malloc(inBuffer->state.Properties.DictionarySize);
if (inBuffer->state.Dictionary == NULL) return -1;
LzmaDecoderInit(&(inBuffer->state));
return 0;
}
void *
lzma_decoder_create(I7z_stream *st, unsigned char *prop, unsigned int propsize)
{
ReadStream *rs;
LZMA_Decoder *dec;
if ((dec = calloc(1, sizeof(*dec))) == NULL) {
err_message_fnc("No enough memory.\n");
return NULL;
}
/* Decode LZMA properties and allocate memory */
if (LzmaDecodeProperties(&dec->state.Properties, prop, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
err_message_fnc("Incorrect stream properties.\n");
return NULL;
}
if ((dec->state.Probs = (CProb *)malloc(LzmaGetNumProbs(&dec->state.Properties) * sizeof(CProb))) == NULL) {
free(dec);
err_message_fnc("No enough memory.\n");
return NULL;
}
if ((dec->state.Dictionary = (unsigned char *)malloc(dec->state.Properties.DictionarySize)) == NULL) {
free(dec->state.Probs);
free(dec);
err_message_fnc("No enough memory.\n");
return NULL;
}
if ((rs = calloc(1, sizeof(*rs))) == NULL) {
err_message_fnc("No enough memory.\n");
return NULL;
}
rs->InCallback.Read = read_stream;
rs->st = st;
LzmaDecoderInit(&dec->state);
dec->offset = 0;
dec->rs = rs;
return dec;
}
int cli_LzmaInit(CLI_LZMA **Lp, uint64_t size_override) {
CLI_LZMA *L = *Lp;
if(!L) {
*Lp = L = cli_calloc(sizeof(*L), 1);
if(!L) {
return CL_EMEM;
}
}
L->initted = 0;
if(size_override) L->usize=size_override;
if (!L->next_in || L->avail_in < LZMA_PROPERTIES_SIZE + 8) return LZMA_RESULT_OK;
if (LzmaDecodeProperties(&L->state.Properties, L->next_in, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
return LZMA_RESULT_DATA_ERROR;
L->next_in += LZMA_PROPERTIES_SIZE;
L->avail_in -= LZMA_PROPERTIES_SIZE;
if (!L->usize) {
L->usize=(uint64_t)cli_readint32(L->next_in) + ((uint64_t)cli_readint32(L->next_in+4)<<32);
L->next_in += 8;
L->avail_in -= 8;
}
if (!(L->state.Probs = (CProb *)cli_malloc(LzmaGetNumProbs(&L->state.Properties) * sizeof(CProb))))
return LZMA_RESULT_DATA_ERROR;
if (!(L->state.Dictionary = (unsigned char *)cli_malloc(L->state.Properties.DictionarySize))) {
free(L->state.Probs);
return LZMA_RESULT_DATA_ERROR;
}
L->initted = 1;
LzmaDecoderInit(&L->state);
return LZMA_RESULT_OK;
}
SZ_RESULT SzDecode(const CFileSize *packSizes, const CFolder *folder,
#ifdef _LZMA_IN_CB
ISzInStream *inStream,
#else
const Byte *inBuffer,
#endif
Byte *outBuffer, size_t outSize,
size_t *outSizeProcessed, ISzAlloc *allocMain)
{
UInt32 si;
size_t inSize = 0;
CCoderInfo *coder;
if (folder->NumPackStreams != 1)
return SZE_NOTIMPL;
if (folder->NumCoders != 1)
return SZE_NOTIMPL;
coder = folder->Coders;
*outSizeProcessed = 0;
for (si = 0; si < folder->NumPackStreams; si++)
inSize += (size_t)packSizes[si];
if (AreMethodsEqual(&coder->MethodID, &k_Copy))
{
size_t i;
if (inSize != outSize)
return SZE_DATA_ERROR;
#ifdef _LZMA_IN_CB
for (i = 0; i < inSize;)
{
size_t j;
Byte *inBuffer;
size_t bufferSize;
RINOK(inStream->Read((void *)inStream, (void **)&inBuffer, inSize - i, &bufferSize));
if (bufferSize == 0)
return SZE_DATA_ERROR;
if (bufferSize > inSize - i)
return SZE_FAIL;
*outSizeProcessed += bufferSize;
for (j = 0; j < bufferSize && i < inSize; j++, i++)
outBuffer[i] = inBuffer[j];
}
#else
for (i = 0; i < inSize; i++)
outBuffer[i] = inBuffer[i];
*outSizeProcessed = inSize;
#endif
return SZ_OK;
}
if (AreMethodsEqual(&coder->MethodID, &k_LZMA))
{
#ifdef _LZMA_IN_CB
CLzmaInCallbackImp lzmaCallback;
#else
SizeT inProcessed;
#endif
CLzmaDecoderState state; /* it's about 24-80 bytes structure, if int is 32-bit */
int result;
SizeT outSizeProcessedLoc;
#ifdef _LZMA_IN_CB
lzmaCallback.Size = inSize;
lzmaCallback.InStream = inStream;
lzmaCallback.InCallback.Read = LzmaReadImp;
#endif
if (LzmaDecodeProperties(&state.Properties, coder->Properties.Items,
coder->Properties.Capacity) != LZMA_RESULT_OK)
return SZE_FAIL;
state.Probs = (CProb *)allocMain->Alloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (state.Probs == 0)
return SZE_OUTOFMEMORY;
#ifdef _LZMA_OUT_READ
if (state.Properties.DictionarySize == 0)
state.Dictionary = 0;
else
{
state.Dictionary = (unsigned char *)allocMain->Alloc(state.Properties.DictionarySize);
if (state.Dictionary == 0)
{
allocMain->Free(state.Probs);
return SZE_OUTOFMEMORY;
}
}
LzmaDecoderInit(&state);
#endif
result = LzmaDecode(&state,
#ifdef _LZMA_IN_CB
&lzmaCallback.InCallback,
#else
inBuffer, (SizeT)inSize, &inProcessed,
#endif
outBuffer, (SizeT)outSize, &outSizeProcessedLoc);
*outSizeProcessed = (size_t)outSizeProcessedLoc;
allocMain->Free(state.Probs);
#ifdef _LZMA_OUT_READ
allocMain->Free(state.Dictionary);
#endif
if (result == LZMA_RESULT_DATA_ERROR)
return SZE_DATA_ERROR;
if (result != LZMA_RESULT_OK)
return SZE_FAIL;
return SZ_OK;
}
return SZE_NOTIMPL;
}
SZ_RESULT SzDecodeLzma(CCoderInfo *coder, CFileSize inSize,
#ifdef _LZMA_IN_CB
ISzInStream *inStream,
#else
const Byte *inBuffer,
#endif
Byte *outBuffer, size_t outSize, ISzAlloc *allocMain)
{
#ifdef _LZMA_IN_CB
CLzmaInCallbackImp lzmaCallback;
#else
SizeT inProcessed;
#endif
CLzmaDecoderState state; /* it's about 24-80 bytes structure, if int is 32-bit */
int result;
SizeT outSizeProcessedLoc;
#ifdef _LZMA_IN_CB
lzmaCallback.Size = inSize;
lzmaCallback.InStream = inStream;
lzmaCallback.InCallback.Read = LzmaReadImp;
#endif
if (LzmaDecodeProperties(&state.Properties, coder->Properties.Items,
(unsigned)coder->Properties.Capacity) != LZMA_RESULT_OK)
return SZE_FAIL;
state.Probs = (CProb *)allocMain->Alloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
if (state.Probs == 0)
return SZE_OUTOFMEMORY;
#ifdef _LZMA_OUT_READ
if (state.Properties.DictionarySize == 0)
state.Dictionary = 0;
else
{
state.Dictionary = (unsigned char *)allocMain->Alloc(state.Properties.DictionarySize);
if (state.Dictionary == 0)
{
allocMain->Free(state.Probs);
return SZE_OUTOFMEMORY;
}
}
LzmaDecoderInit(&state);
#endif
result = LzmaDecode(&state,
#ifdef _LZMA_IN_CB
&lzmaCallback.InCallback,
#else
inBuffer, (SizeT)inSize, &inProcessed,
#endif
outBuffer, (SizeT)outSize, &outSizeProcessedLoc);
allocMain->Free(state.Probs);
#ifdef _LZMA_OUT_READ
allocMain->Free(state.Dictionary);
#endif
if (result == LZMA_RESULT_DATA_ERROR)
return SZE_DATA_ERROR;
if (result != LZMA_RESULT_OK)
return SZE_FAIL;
return (outSizeProcessedLoc == outSize) ? SZ_OK : SZE_DATA_ERROR;
}
static PyObject *pylzma_decomp_decompress(CDecompressionObject *self, PyObject *args)
{
PyObject *result=NULL;
unsigned char *data, *next_in, *next_out;
int length, start_total_out, res, max_length=BLOCK_SIZE;
SizeT avail_in, avail_out;
unsigned char properties[LZMA_PROPERTIES_SIZE];
SizeT inProcessed, outProcessed;
if (!PyArg_ParseTuple(args, "s#|l", &data, &length, &max_length))
return NULL;
if (max_length <= 0)
{
PyErr_SetString(PyExc_ValueError, "bufsize must be greater than zero");
return NULL;
}
start_total_out = self->total_out;
if (self->unconsumed_length > 0) {
self->unconsumed_tail = (unsigned char *)realloc(self->unconsumed_tail, self->unconsumed_length + length);
next_in = (unsigned char *)self->unconsumed_tail;
memcpy(next_in + self->unconsumed_length, data, length);
} else
next_in = data;
avail_in = self->unconsumed_length + length;
if (self->need_properties && avail_in < sizeof(properties)) {
// we need enough bytes to read the properties
if (!self->unconsumed_length) {
self->unconsumed_tail = (unsigned char *)malloc(length);
memcpy(self->unconsumed_tail, data, length);
}
self->unconsumed_length += length;
return PyString_FromString("");
}
if (self->need_properties) {
self->need_properties = 0;
memcpy(&properties, next_in, sizeof(properties));
avail_in -= sizeof(properties);
next_in += sizeof(properties);
if (self->unconsumed_length >= sizeof(properties)-length) {
self->unconsumed_length -= sizeof(properties)-length;
if (self->unconsumed_length > 0) {
memcpy(self->unconsumed_tail, self->unconsumed_tail+sizeof(properties), self->unconsumed_length);
self->unconsumed_tail = (unsigned char *)realloc(self->unconsumed_tail, self->unconsumed_length);
} else
FREE_AND_NULL(self->unconsumed_tail);
}
if (LzmaDecodeProperties(&self->state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
{
PyErr_SetString(PyExc_TypeError, "Incorrect stream properties");
goto exit;
}
self->state.Probs = (CProb *)malloc(LzmaGetNumProbs(&self->state.Properties) * sizeof(CProb));
if (self->state.Probs == 0) {
PyErr_NoMemory();
goto exit;
}
if (self->state.Properties.DictionarySize == 0)
self->state.Dictionary = 0;
else {
self->state.Dictionary = (unsigned char *)malloc(self->state.Properties.DictionarySize);
if (self->state.Dictionary == 0) {
free(self->state.Probs);
self->state.Probs = NULL;
PyErr_NoMemory();
goto exit;
}
}
LzmaDecoderInit(&self->state);
}
if (avail_in == 0)
// no more bytes to decompress
return PyString_FromString("");
if (!(result = PyString_FromStringAndSize(NULL, max_length)))
return NULL;
next_out = (unsigned char *)PyString_AS_STRING(result);
avail_out = max_length;
Py_BEGIN_ALLOW_THREADS
// Decompress until EOS marker is reached
res = LzmaDecode(&self->state, next_in, avail_in, &inProcessed,
next_out, avail_out, &outProcessed, 0);
Py_END_ALLOW_THREADS
self->total_out += outProcessed;
next_in += inProcessed;
avail_in -= inProcessed;
next_out += outProcessed;
avail_out -= outProcessed;
if (res != LZMA_RESULT_OK) {
PyErr_SetString(PyExc_ValueError, "data error during decompression");
DEC_AND_NULL(result);
goto exit;
}
/* Not all of the compressed data could be accomodated in the output buffer
of specified size. Return the unconsumed tail in an attribute.*/
if (avail_in > 0)
{
if (avail_in != self->unconsumed_length) {
if (avail_in > self->unconsumed_length) {
self->unconsumed_tail = (unsigned char *)realloc(self->unconsumed_tail, avail_in);
memcpy(self->unconsumed_tail, next_in, avail_in);
}
if (avail_in < self->unconsumed_length) {
memcpy(self->unconsumed_tail, next_in, avail_in);
self->unconsumed_tail = (unsigned char *)realloc(self->unconsumed_tail, avail_in);
}
}
if (!self->unconsumed_tail) {
PyErr_NoMemory();
DEC_AND_NULL(result);
goto exit;
}
} else
FREE_AND_NULL(self->unconsumed_tail);
self->unconsumed_length = avail_in;
_PyString_Resize(&result, self->total_out - start_total_out);
exit:
return result;
}
int un7zip(unsigned char *in, unsigned int in_size,
unsigned char *buf, unsigned int buf_size,
unsigned char *out, unsigned int out_size, UN7ZIP_OUT_CALLBACK outCallback)
{
unsigned int lzmaInternalSize, dictSize;
int lc, lp, pb;
unsigned int nowPos, unzipSize, outSizeProcessed;
int ret;
// 1) Read first byte of properties for LZMA compressed stream,
// check that it has correct value and calculate three
// LZMA property variables:
unsigned char prop0 = in[0];
if(prop0 >= ( 9 * 5 * 5))
{
//PRINTF("properties error\n");
return LZMA_RESULT_DATA_ERROR;
}
for(pb = 0; prop0 >= (9 * 5); pb++, prop0 -= (9 * 5));
for(lp = 0; prop0 >= 9; lp++, prop0 -= 9);
lc = prop0;
// 2) Calculate required amount for LZMA lzmaInternalSize:
lzmaInternalSize = (UNZIP_BASE_SIZE + (UNZIP_LIT_SIZE << (lc + lp))) * sizeof(unsigned short) + 100;
if(lzmaInternalSize > buf_size)
return LZMA_RESULT_NOT_ENOUGH_MEM;
// 3) Get decompressed data dictionary size:
dictSize = get_dictionary_size(in);
if(dictSize > m_dict_size)
return LZMA_RESULT_NOT_ENOUGH_MEM;
unzipSize = get_unzip_size(in);
if(!outCallback && unzipSize > out_size)
return LZMA_RESULT_NOT_ENOUGH_MEM;
// 4) Init decoder
ret = LzmaDecoderInit(buf, lzmaInternalSize, lc, lp, pb,
m_dict_buffer, dictSize, in+13, in_size-13);
if(ret != LZMA_RESULT_OK)
return ret;
// 4) Decompress data:
for(nowPos=0; nowPos<unzipSize; nowPos+=outSizeProcessed)
{
UInt32 blockSize = unzipSize - nowPos;
if(blockSize > out_size)
blockSize = out_size;
ret = LzmaDecode(buf, out, blockSize, &outSizeProcessed);
if(ret != LZMA_RESULT_OK || !outSizeProcessed)
break;
if(outCallback)
{
out_size = outSizeProcessed;
if(outCallback(&out, &out_size))
break;
}
}
if(!ret)
{
for(lc=0; lc<(int)sizeof(unsigned int); lc++)
buf[lc] = ((unsigned char *)&nowPos)[lc];
}
return ret;
}
int main2(int numargs, const char *args[], char *rs)
{
FILE *inputHandle, *outputHandle;
unsigned int length, processedSize;
unsigned int compressedSize, outSize, outSizeProcessed, lzmaInternalSize;
void *inStream, *outStream, *lzmaInternalData;
unsigned char properties[5];
unsigned char prop0;
int ii;
int lc, lp, pb;
int res;
#ifdef _LZMA_IN_CB
CBuffer bo;
#endif
sprintf(rs + strlen(rs), "\nLZMA Decoder 4.02 Copyright (c) 1999-2004 Igor Pavlov 2004-06-10\n");
if (numargs < 2 || numargs > 3)
{
sprintf(rs + strlen(rs), "\nUsage: lzmaDec file.lzma [outFile]\n");
return 1;
}
inputHandle = fopen(args[1], "rb");
if (inputHandle == 0)
{
sprintf(rs + strlen(rs), "\n Open input file error");
return 1;
}
fseek(inputHandle, 0, SEEK_END);
length = ftell(inputHandle);
fseek(inputHandle, 0, SEEK_SET);
if (!MyReadFile(inputHandle, properties, sizeof(properties)))
return 1;
outSize = 0;
for (ii = 0; ii < 4; ii++)
{
unsigned char b;
if (!MyReadFile(inputHandle, &b, sizeof(b)))
return 1;
outSize += (unsigned int)(b) << (ii * 8);
}
if (outSize == 0xFFFFFFFF)
{
sprintf(rs + strlen(rs), "\nstream version is not supported");
return 1;
}
for (ii = 0; ii < 4; ii++)
{
unsigned char b;
if (!MyReadFile(inputHandle, &b, sizeof(b)))
return 1;
if (b != 0)
{
sprintf(rs + strlen(rs), "\n too long file");
return 1;
}
}
compressedSize = length - 13;
inStream = malloc(compressedSize);
if (inStream == 0)
{
sprintf(rs + strlen(rs), "\n can't allocate");
return 1;
}
if (!MyReadFile(inputHandle, inStream, compressedSize))
{
sprintf(rs + strlen(rs), "\n can't read");
return 1;
}
fclose(inputHandle);
prop0 = properties[0];
if (prop0 >= (9*5*5))
{
sprintf(rs + strlen(rs), "\n Properties error");
return 1;
}
for (pb = 0; prop0 >= (9 * 5);
pb++, prop0 -= (9 * 5));
for (lp = 0; prop0 >= 9;
lp++, prop0 -= 9);
lc = prop0;
lzmaInternalSize =
(LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp)))* sizeof(CProb);
#ifdef _LZMA_OUT_READ
lzmaInternalSize += 100;
#endif
outStream = malloc(outSize);
lzmaInternalData = malloc(lzmaInternalSize);
if (outStream == 0 || lzmaInternalData == 0)
{
sprintf(rs + strlen(rs), "\n can't allocate");
return 1;
}
#ifdef _LZMA_IN_CB
bo.InCallback.Read = LzmaReadCompressed;
bo.Buffer = (unsigned char *)inStream;
bo.Size = compressedSize;
#endif
#ifdef _LZMA_OUT_READ
{
UInt32 nowPos;
unsigned char *dictionary;
UInt32 dictionarySize = 0;
int i;
for (i = 0; i < 4; i++)
dictionarySize += (UInt32)(properties[1 + i]) << (i * 8);
dictionary = malloc(dictionarySize);
if (dictionary == 0)
{
sprintf(rs + strlen(rs), "\n can't allocate");
return 1;
}
LzmaDecoderInit((unsigned char *)lzmaInternalData, lzmaInternalSize,
lc, lp, pb,
dictionary, dictionarySize,
#ifdef _LZMA_IN_CB
&bo.InCallback
#else
(unsigned char *)inStream, compressedSize
#endif
);
for (nowPos = 0; nowPos < outSize;)
{
UInt32 blockSize = outSize - nowPos;
UInt32 kBlockSize = 0x10000;
if (blockSize > kBlockSize)
blockSize = kBlockSize;
res = LzmaDecode((unsigned char *)lzmaInternalData,
((unsigned char *)outStream) + nowPos, blockSize, &outSizeProcessed);
if (res != 0)
{
sprintf(rs + strlen(rs), "\nerror = %d\n", res);
return 1;
}
if (outSizeProcessed == 0)
{
outSize = nowPos;
break;
}
nowPos += outSizeProcessed;
}
free(dictionary);
}
#else
res = LzmaDecode((unsigned char *)lzmaInternalData, lzmaInternalSize,
lc, lp, pb,
#ifdef _LZMA_IN_CB
&bo.InCallback,
#else
(unsigned char *)inStream, compressedSize,
#endif
(unsigned char *)outStream, outSize, &outSizeProcessed);
outSize = outSizeProcessed;
#endif
if (res != 0)
{
sprintf(rs + strlen(rs), "\nerror = %d\n", res);
return 1;
}
if (numargs > 2)
{
outputHandle = fopen(args[2], "wb+");
if (outputHandle == 0)
{
sprintf(rs + strlen(rs), "\n Open output file error");
return 1;
}
processedSize = fwrite(outStream, 1, outSize, outputHandle);
if (processedSize != outSize)
{
sprintf(rs + strlen(rs), "\n can't write");
return 1;
}
fclose(outputHandle);
}
free(lzmaInternalData);
free(outStream);
free(inStream);
return 0;
}
HRESULT LzmaDecoderCodeReal(
LzmaDecoder *lzmaDecoder,
UINT64 *anInSize,
UINT64 *anOutSize)
{
BOOL aPeviousIsMatch = FALSE;
BYTE aPreviousByte = 0;
UINT32 aRepDistances[kNumRepDistances];
int i;
UINT64 aNowPos64 = 0;
UINT64 aSize = *anOutSize;
ISequentialInStream my_in_stream;
// WindowOut out_window;
CState aState;
CStateInit(&aState);
if (anOutSize == NULL)
{
printf("CodeReal: invalid argument %x\n", (UINT32) anOutSize );
return E_INVALIDARG;
}
LzmaDecoderInit(lzmaDecoder);
my_in_stream.data = in_stream.data;
my_in_stream.remainingBytes = in_stream.remainingBytes;
for(i = 0 ; i < (int) kNumRepDistances; i++)
aRepDistances[i] = 0;
//while(aNowPos64 < aSize)
while(my_in_stream.remainingBytes > 0)
{
UINT64 aNext = MyMin(aNowPos64 + (1 << 18), aSize);
while(aNowPos64 < aNext)
{
UINT32 aPosState = (UINT32)(aNowPos64) & lzmaDecoder->m_PosStateMask;
if (BitDecode(&my_in_stream,
&lzmaDecoder->m_MainChoiceDecoders[aState][aPosState],
&lzmaDecoder->m_RangeDecoder) == (UINT32) kMainChoiceLiteralIndex)
{
CStateUpdateChar(&aState);
if(aPeviousIsMatch)
{
BYTE aMatchByte = OutWindowGetOneByte(0 - aRepDistances[0] - 1);
aPreviousByte = LitDecodeWithMatchByte(&my_in_stream,
&lzmaDecoder->m_LiteralDecoder,
&lzmaDecoder->m_RangeDecoder,
(UINT32)(aNowPos64),
aPreviousByte,
aMatchByte);
aPeviousIsMatch = FALSE;
}
else
aPreviousByte = LitDecodeNormal(&my_in_stream,
&lzmaDecoder->m_LiteralDecoder,
&lzmaDecoder->m_RangeDecoder,
(UINT32)(aNowPos64),
aPreviousByte);
OutWindowPutOneByte(aPreviousByte);
aNowPos64++;
}
else
{
UINT32 aDistance, aLen;
aPeviousIsMatch = TRUE;
if(BitDecode(&my_in_stream,
&lzmaDecoder->m_MatchChoiceDecoders[aState],
&lzmaDecoder->m_RangeDecoder) == (UINT32) kMatchChoiceRepetitionIndex)
{
if(BitDecode(&my_in_stream,
&lzmaDecoder->m_MatchRepChoiceDecoders[aState],
&lzmaDecoder->m_RangeDecoder) == 0)
{
if(BitDecode(&my_in_stream,
&lzmaDecoder->m_MatchRepShortChoiceDecoders[aState][aPosState],
&lzmaDecoder->m_RangeDecoder) == 0)
{
CStateUpdateShortRep(&aState);
aPreviousByte = OutWindowGetOneByte(0 - aRepDistances[0] - 1);
OutWindowPutOneByte(aPreviousByte);
aNowPos64++;
continue;
}
aDistance = aRepDistances[0];
}
else
{
if(BitDecode(&my_in_stream,
&lzmaDecoder->m_MatchRep1ChoiceDecoders[aState],
&lzmaDecoder->m_RangeDecoder) == 0)
{
aDistance = aRepDistances[1];
aRepDistances[1] = aRepDistances[0];
}
else
{
if (BitDecode(&my_in_stream,
&lzmaDecoder->m_MatchRep2ChoiceDecoders[aState],
&lzmaDecoder->m_RangeDecoder) == 0)
{
aDistance = aRepDistances[2];
}
else
{
aDistance = aRepDistances[3];
aRepDistances[3] = aRepDistances[2];
}
aRepDistances[2] = aRepDistances[1];
aRepDistances[1] = aRepDistances[0];
}
aRepDistances[0] = aDistance;
}
aLen = LenDecode(&my_in_stream,
&lzmaDecoder->m_RepMatchLenDecoder,
&lzmaDecoder->m_RangeDecoder,
aPosState) + kMatchMinLen;
CStateUpdateRep(&aState);
}
else
{
UINT32 aPosSlot;
aLen = kMatchMinLen + LenDecode(&my_in_stream,
&lzmaDecoder->m_LenDecoder,
&lzmaDecoder->m_RangeDecoder,
aPosState);
CStateUpdateMatch(&aState);
aPosSlot = BitTreeDecode(&my_in_stream,
&lzmaDecoder->m_PosSlotDecoder[GetLenToPosState(aLen)],
&lzmaDecoder->m_RangeDecoder);
if (aPosSlot >= (UINT32) kStartPosModelIndex)
{
aDistance = kDistStart[aPosSlot];
if (aPosSlot < (UINT32) kEndPosModelIndex)
aDistance += ReverseBitTreeDecoder2Decode(&my_in_stream,
&lzmaDecoder->m_PosDecoders[aPosSlot - kStartPosModelIndex],
&lzmaDecoder->m_RangeDecoder);
else
{
aDistance += (RangeDecodeDirectBits(&my_in_stream,
&lzmaDecoder->m_RangeDecoder,
kDistDirectBits[aPosSlot] - kNumAlignBits) << kNumAlignBits);
aDistance += ReverseBitTreeDecoderDecode(&my_in_stream,
&lzmaDecoder->m_PosAlignDecoder,
&lzmaDecoder->m_RangeDecoder);
}
}
else
aDistance = aPosSlot;
aRepDistances[3] = aRepDistances[2];
aRepDistances[2] = aRepDistances[1];
aRepDistances[1] = aRepDistances[0];
aRepDistances[0] = aDistance;
}
if (aDistance >= aNowPos64)
{
printf("CodeReal: invalid data\n" );
return E_INVALIDDATA;
}
OutWindowCopyBackBlock(aDistance, aLen);
aNowPos64 += aLen;
aPreviousByte = OutWindowGetOneByte(0 - 1);
}
}
}
//BRCM modification
LzmaDecoderFreeBuffer(lzmaDecoder);
OutWindowFlush();
return S_OK;
}
