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Update to ZStandard 1.0.1

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This commit is contained in:
Tino Reichardt
2016-09-04 13:32:23 +02:00
parent 2d12012a9d
commit b7963b68e9
24 changed files with 1541 additions and 1617 deletions
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191
C/zstd/zstd_v05.c
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@@ -1,36 +1,12 @@
/* ******************************************************************
zstd_v05.c
Decompression module for ZSTD v0.5 legacy format
Copyright (C) 2016, Yann Collet.
/**
* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
You can contact the author at :
- Homepage : http://www.zstd.net/
****************************************************************** */
/*- Dependencies -*/
#include "zstd_v05.h"
@@ -140,7 +116,7 @@ extern "C" {
#ifndef MEM_FORCE_MEMORY_ACCESS /* can be defined externally, on command line for example */
# if defined(__GNUC__) && ( defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) )
# define MEM_FORCE_MEMORY_ACCESS 2
# elif defined(__INTEL_COMPILER) || \
# elif (defined(__INTEL_COMPILER) && !defined(WIN32)) || \
(defined(__GNUC__) && ( defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__) ))
# define MEM_FORCE_MEMORY_ACCESS 1
# endif
@@ -250,18 +226,6 @@ MEM_STATIC U32 MEM_readLE32(const void* memPtr)
}
}
MEM_STATIC void MEM_writeLE32(void* memPtr, U32 val32)
{
if (MEM_isLittleEndian()) {
MEM_write32(memPtr, val32);
} else {
BYTE* p = (BYTE*)memPtr;
p[0] = (BYTE)val32;
p[1] = (BYTE)(val32>>8);
p[2] = (BYTE)(val32>>16);
p[3] = (BYTE)(val32>>24);
}
}
MEM_STATIC U64 MEM_readLE64(const void* memPtr)
{
@@ -274,22 +238,6 @@ MEM_STATIC U64 MEM_readLE64(const void* memPtr)
}
}
MEM_STATIC void MEM_writeLE64(void* memPtr, U64 val64)
{
if (MEM_isLittleEndian()) {
MEM_write64(memPtr, val64);
} else {
BYTE* p = (BYTE*)memPtr;
p[0] = (BYTE)val64;
p[1] = (BYTE)(val64>>8);
p[2] = (BYTE)(val64>>16);
p[3] = (BYTE)(val64>>24);
p[4] = (BYTE)(val64>>32);
p[5] = (BYTE)(val64>>40);
p[6] = (BYTE)(val64>>48);
p[7] = (BYTE)(val64>>56);
}
}
MEM_STATIC size_t MEM_readLEST(const void* memPtr)
{
@@ -299,13 +247,6 @@ MEM_STATIC size_t MEM_readLEST(const void* memPtr)
return (size_t)MEM_readLE64(memPtr);
}
MEM_STATIC void MEM_writeLEST(void* memPtr, size_t val)
{
if (MEM_32bits())
MEM_writeLE32(memPtr, (U32)val);
else
MEM_writeLE64(memPtr, (U64)val);
}
#if defined (__cplusplus)
}
@@ -763,28 +704,6 @@ MEM_STATIC void ZSTDv05_wildcopy(void* dst, const void* src, size_t length)
while (op < oend);
}
MEM_STATIC unsigned ZSTDv05_highbit(U32 val)
{
# if defined(_MSC_VER) /* Visual */
unsigned long r=0;
_BitScanReverse(&r, val);
return (unsigned)r;
# elif defined(__GNUC__) && (__GNUC__ >= 3) /* GCC Intrinsic */
return 31 - __builtin_clz(val);
# else /* Software version */
static const int DeBruijnClz[32] = { 0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30, 8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31 };
U32 v = val;
int r;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
r = DeBruijnClz[(U32)(v * 0x07C4ACDDU) >> 27];
return r;
# endif
}
/*-*******************************************
* Private interfaces
@@ -916,16 +835,16 @@ void FSEv05_freeDTable(FSEv05_DTable* dt);
/*!
FSEv05_buildDTable():
Builds 'dt', which must be already allocated, using FSEv05_createDTable()
return : 0,
or an errorCode, which can be tested using FSEv05_isError() */
@return : 0,
or an errorCode, which can be tested using FSEv05_isError() */
size_t FSEv05_buildDTable (FSEv05_DTable* dt, const short* normalizedCounter, unsigned maxSymbolValue, unsigned tableLog);
/*!
FSEv05_decompress_usingDTable():
Decompress compressed source @cSrc of size @cSrcSize using @dt
into @dst which must be already allocated.
return : size of regenerated data (necessarily <= @dstCapacity)
or an errorCode, which can be tested using FSEv05_isError() */
Decompress compressed source @cSrc of size @cSrcSize using `dt`
into `dst` which must be already allocated.
@return : size of regenerated data (necessarily <= @dstCapacity)
or an errorCode, which can be tested using FSEv05_isError() */
size_t FSEv05_decompress_usingDTable(void* dst, size_t dstCapacity, const void* cSrc, size_t cSrcSize, const FSEv05_DTable* dt);
@@ -1350,11 +1269,6 @@ MEM_STATIC void FSEv05_initDState(FSEv05_DState_t* DStatePtr, BITv05_DStream_t*
DStatePtr->table = dt + 1;
}
MEM_STATIC size_t FSEv05_getStateValue(FSEv05_DState_t* DStatePtr)
{
return DStatePtr->state;
}
MEM_STATIC BYTE FSEv05_peakSymbol(FSEv05_DState_t* DStatePtr)
{
const FSEv05_decode_t DInfo = ((const FSEv05_decode_t*)(DStatePtr->table))[DStatePtr->state];
@@ -1466,12 +1380,15 @@ MEM_STATIC unsigned FSEv05_endOfDState(const FSEv05_DState_t* DStatePtr)
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
# pragma warning(disable : 4214) /* disable: C4214: non-int bitfields */
#else
# ifdef __GNUC__
# define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
# define FORCE_INLINE static inline __attribute__((always_inline))
# if defined (__cplusplus) || defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
# ifdef __GNUC__
# define FORCE_INLINE static inline __attribute__((always_inline))
# else
# define FORCE_INLINE static inline
# endif
# else
# define FORCE_INLINE static inline
# endif
# define FORCE_INLINE static
# endif /* __STDC_VERSION__ */
#endif
@@ -2088,14 +2005,7 @@ size_t HUFv05_decompress1X4_usingDTable(void* dst, size_t maxDstSize, const void
#ifdef _MSC_VER /* Visual Studio */
# define FORCE_INLINE static __forceinline
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
#else
# ifdef __GNUC__
# define FORCE_INLINE static inline __attribute__((always_inline))
# else
# define FORCE_INLINE static inline
# endif
#endif
@@ -2944,17 +2854,9 @@ size_t HUFv05_decompress (void* dst, size_t dstSize, const void* cSrc, size_t cS
* Compiler specifics
*********************************************************/
#ifdef _MSC_VER /* Visual Studio */
# define FORCE_INLINE static __forceinline
# include <intrin.h> /* For Visual 2005 */
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
# pragma warning(disable : 4324) /* disable: C4324: padded structure */
#else
# define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
# ifdef __GNUC__
# define FORCE_INLINE static inline __attribute__((always_inline))
# else
# define FORCE_INLINE static inline
# endif
#endif
@@ -3395,7 +3297,6 @@ size_t ZSTDv05_decodeSeqHeaders(int* nbSeq, const BYTE** dumpsPtr, size_t* dumps
/* Build DTables */
switch(LLtype)
{
U32 max;
case FSEv05_ENCODING_RLE :
LLlog = 0;
FSEv05_buildDTable_rle(DTableLL, *ip++);
@@ -3408,17 +3309,16 @@ size_t ZSTDv05_decodeSeqHeaders(int* nbSeq, const BYTE** dumpsPtr, size_t* dumps
break;
case FSEv05_ENCODING_DYNAMIC :
default : /* impossible */
max = MaxLL;
headerSize = FSEv05_readNCount(norm, &max, &LLlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (LLlog > LLFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableLL, norm, max, LLlog);
}
{ U32 max = MaxLL;
headerSize = FSEv05_readNCount(norm, &max, &LLlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (LLlog > LLFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableLL, norm, max, LLlog);
} }
switch(Offtype)
{
U32 max;
case FSEv05_ENCODING_RLE :
Offlog = 0;
if (ip > iend-2) return ERROR(srcSize_wrong); /* min : "raw", hence no header, but at least xxLog bits */
@@ -3432,17 +3332,16 @@ size_t ZSTDv05_decodeSeqHeaders(int* nbSeq, const BYTE** dumpsPtr, size_t* dumps
break;
case FSEv05_ENCODING_DYNAMIC :
default : /* impossible */
max = MaxOff;
headerSize = FSEv05_readNCount(norm, &max, &Offlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (Offlog > OffFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableOffb, norm, max, Offlog);
}
{ U32 max = MaxOff;
headerSize = FSEv05_readNCount(norm, &max, &Offlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (Offlog > OffFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableOffb, norm, max, Offlog);
} }
switch(MLtype)
{
U32 max;
case FSEv05_ENCODING_RLE :
MLlog = 0;
if (ip > iend-2) return ERROR(srcSize_wrong); /* min : "raw", hence no header, but at least xxLog bits */
@@ -3456,13 +3355,13 @@ size_t ZSTDv05_decodeSeqHeaders(int* nbSeq, const BYTE** dumpsPtr, size_t* dumps
break;
case FSEv05_ENCODING_DYNAMIC :
default : /* impossible */
max = MaxML;
headerSize = FSEv05_readNCount(norm, &max, &MLlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (MLlog > MLFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableML, norm, max, MLlog);
} }
{ U32 max = MaxML;
headerSize = FSEv05_readNCount(norm, &max, &MLlog, ip, iend-ip);
if (FSEv05_isError(headerSize)) return ERROR(GENERIC);
if (MLlog > MLFSEv05Log) return ERROR(corruption_detected);
ip += headerSize;
FSEv05_buildDTable(DTableML, norm, max, MLlog);
} } }
return ip-istart;
}
@@ -4092,7 +3991,7 @@ static size_t ZBUFFv05_limitCopy(void* dst, size_t maxDstSize, const void* src,
* The function will report how many bytes were read or written by modifying *srcSizePtr and *maxDstSizePtr.
* Note that it may not consume the entire input, in which case it's up to the caller to call again the function with remaining input.
* The content of dst will be overwritten (up to *maxDstSizePtr) at each function call, so save its content if it matters or change dst .
* @return : a hint to preferred nb of bytes to use as input for next function call (it's only a hint, to improve latency)
* return : a hint to preferred nb of bytes to use as input for next function call (it's only a hint, to improve latency)
* or 0 when a frame is completely decoded
* or an error code, which can be tested using ZBUFFv05_isError().
*