jory/upx
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity
fba4375be0
upx/src/compress_lzma.cpp
Markus F.X.J. Oberhumer fba4375be0 Cleanups.
2006-06-14 17:06:33 +02:00

332 lines
9.3 KiB
C++
Raw Blame History

/* compress_lzma.cpp --
This file is part of the UPX executable compressor.
Copyright (C) 1996-2006 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2006 Laszlo Molnar
All Rights Reserved.
UPX and the UCL library are free software; you can redistribute them
and/or modify them under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Markus F.X.J. Oberhumer Laszlo Molnar
<mfx@users.sourceforge.net> <ml1050@users.sourceforge.net>
*/
#include "conf.h"
#include "compress.h"
#if !defined(WITH_LZMA)
extern int compress_lzma_dummy;
int compress_lzma_dummy = 0;
#else
/*************************************************************************
// cruft because of pseudo-COM layer
**************************************************************************/
#undef MSDOS
#undef OS2
#undef _WIN32
#undef _WIN32_WCE
#undef COMPRESS_MF_MT
#undef _NO_EXCEPTIONS
#include "C/Common/MyInitGuid.h"
//#include "C/7zip/Compress/LZMA/LZMADecoder.h"
#include "C/7zip/Compress/LZMA/LZMAEncoder.h"
namespace MyLzma {
struct InStreamRam: public ISequentialInStream, public CMyUnknownImp
{
MY_UNKNOWN_IMP
const Byte *Data; size_t Size; size_t Pos;
void Init(const Byte *data, size_t size) {
Data = data; Size = size; Pos = 0;
}
STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
};
STDMETHODIMP InStreamRam::Read(void *data, UInt32 size, UInt32 *processedSize)
{
UInt32 remain = Size - Pos;
if (size > remain) size = remain;
memmove(data, Data + Pos, size);
Pos += size;
if (processedSize != NULL) *processedSize = size;
return S_OK;
}
struct OutStreamRam : public ISequentialOutStream, public CMyUnknownImp
{
MY_UNKNOWN_IMP
Byte *Data; size_t Size; size_t Pos; bool Overflow;
void Init(Byte *data, size_t size) {
Data = data; Size = size; Pos = 0; Overflow = false;
}
HRESULT WriteByte(Byte b) {
if (Pos >= Size) { Overflow = true; return E_FAIL; }
Data[Pos++] = b;
return S_OK;
}
STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
};
STDMETHODIMP OutStreamRam::Write(const void *data, UInt32 size, UInt32 *processedSize)
{
UInt32 i;
for (i = 0; i < size && Pos < Size; i++)
Data[Pos++] = ((const Byte *)data)[i];
if (processedSize != NULL) *processedSize = i;
if (i != size) { Overflow = true; return E_FAIL; }
return S_OK;
}
struct ProgressInfo : public ICompressProgressInfo, public CMyUnknownImp
{
MY_UNKNOWN_IMP
STDMETHOD(SetRatioInfo)(const UInt64 *inSize, const UInt64 *outSize);
upx_callback_p cb;
};
STDMETHODIMP ProgressInfo::SetRatioInfo(const UInt64 *inSize, const UInt64 *outSize)
{
if (cb && cb->nprogress)
cb->nprogress(cb, (upx_uint) *inSize, (upx_uint) *outSize, 3);
return S_OK;
}
} // namespace
int upx_lzma_compress ( const upx_bytep src, upx_uint src_len,
upx_bytep dst, upx_uintp dst_len,
upx_callback_p cb,
int method, int level,
const struct upx_compress_config_t *conf_parm,
struct upx_compress_result_t *result )
{
assert(method == M_LZMA);
assert(level > 0); assert(result != NULL);
UNUSED(cb); UNUSED(method); UNUSED(level);
UNUSED(conf_parm); UNUSED(result);
int r = UPX_E_ERROR;
HRESULT rh;
lzma_compress_result_t *res = &result->result_lzma;
MyLzma::InStreamRam is; is.AddRef();
MyLzma::OutStreamRam os; os.AddRef();
is.Init(src, src_len);
os.Init(dst, *dst_len);
MyLzma::ProgressInfo progress; progress.AddRef();
progress.cb = cb;
#ifndef _NO_EXCEPTIONS
try {
#else
#error
#endif
NCompress::NLZMA::CEncoder enc;
const PROPID propIDs[7] = {
NCoderPropID::kPosStateBits, // 0 pb _posStateBits(2)
NCoderPropID::kLitPosBits, // 1 lp _numLiteralPosStateBits(0)
NCoderPropID::kLitContextBits, // 2 lc _numLiteralContextBits(3)
NCoderPropID::kDictionarySize, // 3
NCoderPropID::kAlgorithm, // 4 _fastmode
NCoderPropID::kNumFastBytes, // 5
NCoderPropID::kMatchFinderCycles // 6
};
PROPVARIANT pr[7];
pr[0].vt = pr[1].vt = pr[2].vt = VT_UI4; pr[3].vt = VT_UI4;
pr[4].vt = pr[5].vt = pr[6].vt = VT_UI4;
// setup defaults
pr[0].uintVal = 2;
pr[1].uintVal = 0;
pr[2].uintVal = 3;
pr[3].uintVal = 1024 * 1024;
pr[4].uintVal = 2;
pr[5].uintVal = 64;
pr[6].uintVal = 0;
// FIXME: tune these settings according to level
switch (level)
{
case 1:
pr[3].uintVal = 256 * 1024;
pr[4].uintVal = 0;
break;
case 2:
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
case 8:
break;
case 9:
pr[3].uintVal = 8 * 1024 * 1024;
break;
case 10:
pr[3].uintVal = src_len;
break;
default:
goto error;
}
if (pr[3].uintVal > src_len)
pr[3].uintVal = src_len;
if (enc.SetCoderProperties(propIDs, pr, 7) != S_OK)
goto error;
if (enc.WriteCoderProperties(&os) != S_OK)
goto error;
if (os.Overflow || os.Pos != 5)
goto error;
#if 0 // defined(_LZMA_OUT_READ)
#else
os.Pos -= 4; // do not encode dict_size
#endif
rh = enc.Code(&is, &os, NULL, NULL, &progress);
if (rh == E_OUTOFMEMORY)
r = UPX_E_OUT_OF_MEMORY;
#if 0
else if (os.Overflow)
r = UPX_E_OUPUT_OVERRUN; // FIXME - not compressible
#endif
else if (rh == S_OK)
r = UPX_E_OK;
res->pos_bits = pr[0].uintVal;
res->lit_pos_bits = pr[1].uintVal;
res->lit_context_bits = pr[2].uintVal;
res->dict_size = pr[3].uintVal;
//res->num_probs = LzmaGetNumProbs(&s.Properties));
//res->num_probs = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
res->num_probs = 1846 + (768 << (res->lit_context_bits + res->lit_pos_bits));
error:
*dst_len = os.Pos;
return r;
#ifndef _NO_EXCEPTIONS
} catch(...) { return UPX_E_OUT_OF_MEMORY; }
#endif
}
#include "C/Common/Alloc.cpp"
#include "C/Common/CRC.cpp"
//#include "C/7zip/Common/InBuffer.cpp"
#include "C/7zip/Common/OutBuffer.cpp"
#include "C/7zip/Common/StreamUtils.cpp"
#include "C/7zip/Compress/LZ/LZInWindow.cpp"
//#include "C/7zip/Compress/LZ/LZOutWindow.cpp"
//#include "C/7zip/Compress/LZMA/LZMADecoder.cpp"
#include "C/7zip/Compress/LZMA/LZMAEncoder.cpp"
#include "C/7zip/Compress/RangeCoder/RangeCoderBit.cpp"
#undef RC_NORMALIZE
/*************************************************************************
// LZMA decompress
**************************************************************************/
#undef _LZMA_IN_CB
#undef _LZMA_OUT_READ
#undef _LZMA_PROB32
#undef _LZMA_LOC_OPT
#include "C/7zip/Compress/LZMA_C/LzmaDecode.h"
#include "C/7zip/Compress/LZMA_C/LzmaDecode.c"
int upx_lzma_decompress ( const upx_bytep src, upx_uint src_len,
upx_bytep dst, upx_uintp dst_len,
int method )
{
assert(method == M_LZMA);
// see res->num_probs above
COMPILE_TIME_ASSERT(LZMA_BASE_SIZE == 1846);
COMPILE_TIME_ASSERT(LZMA_LIT_SIZE == 768);
CLzmaDecoderState s;
SizeT src_out = 0, dst_out = 0;
int r;
s.Probs = NULL;
#if defined(LzmaDecoderInit)
LzmaDecoderInit(&s);
#endif
r = LzmaDecodeProperties(&s.Properties, src, src_len);
if (r != 0)
goto error;
#if 0 // defined(_LZMA_OUT_READ)
src += LZMA_PROPERTIES_SIZE; src_len -= LZMA_PROPERTIES_SIZE;
#else
src += 1; src_len -= 1;
#endif
s.Probs = (CProb *) malloc(sizeof(CProb) * LzmaGetNumProbs(&s.Properties));
if (!s.Probs)
r = UPX_E_OUT_OF_MEMORY;
else
r = LzmaDecode(&s, src, src_len, &src_out, dst, *dst_len, &dst_out);
error:
*dst_len = dst_out;
free(s.Probs);
return r;
}
/*************************************************************************
//
**************************************************************************/
int upx_lzma_test_overlap ( const upx_bytep buf, upx_uint src_off,
upx_uint src_len, upx_uintp dst_len,
int method )
{
assert(method == M_LZMA);
// FIXME - implement this
// Note that Packer::verifyOverlappingDecompression() will
// verify the final result in any case.
UNUSED(buf);
unsigned overlap_overhead = src_off + src_len - *dst_len;
//printf("upx_lzma_test_overlap: %d\n", overlap_overhead);
if ((int)overlap_overhead >= 256)
return UPX_E_OK;
return UPX_E_ERROR;
}
#endif /* WITH_LZMA */
/*
vi:ts=4:et:nowrap
*/
Reference in New Issue View Git Blame Copy Permalink