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https://github.com/Xevion/easy7zip.git
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Update LZ4 to v1.8.0
This commit is contained in:
Tino Reichardt
124
C/lz4/lz4.h
124
C/lz4/lz4.h
@@ -1,7 +1,7 @@
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/*
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* LZ4 - Fast LZ compression algorithm
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* Header File
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* Copyright (C) 2011-2016, Yann Collet.
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* Copyright (C) 2011-2017, Yann Collet.
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BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
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@@ -32,13 +32,13 @@
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- LZ4 homepage : http://www.lz4.org
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- LZ4 source repository : https://github.com/lz4/lz4
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*/
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#ifndef LZ4_H_2983827168210
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#define LZ4_H_2983827168210
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#if defined (__cplusplus)
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extern "C" {
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#endif
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#ifndef LZ4_H_2983827168210
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#define LZ4_H_2983827168210
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/* --- Dependency --- */
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#include <stddef.h> /* size_t */
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@@ -72,20 +72,24 @@ extern "C" {
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/*
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* LZ4_DLL_EXPORT :
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* Enable exporting of functions when building a Windows DLL
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* LZ4LIB_API :
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* Control library symbols visibility.
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*/
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#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT==1)
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# define LZ4LIB_API __declspec(dllexport)
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#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT==1)
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# define LZ4LIB_API __declspec(dllimport) /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
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#elif defined(__GNUC__) && (__GNUC__ >= 4)
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# define LZ4LIB_API __attribute__ ((__visibility__ ("default")))
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#else
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# define LZ4LIB_API
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#endif
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/*========== Version =========== */
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/*------ Version ------*/
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#define LZ4_VERSION_MAJOR 1 /* for breaking interface changes */
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#define LZ4_VERSION_MINOR 7 /* for new (non-breaking) interface capabilities */
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#define LZ4_VERSION_RELEASE 5 /* for tweaks, bug-fixes, or development */
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#define LZ4_VERSION_MINOR 8 /* for new (non-breaking) interface capabilities */
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#define LZ4_VERSION_RELEASE 0 /* for tweaks, bug-fixes, or development */
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#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE)
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@@ -94,8 +98,8 @@ extern "C" {
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#define LZ4_EXPAND_AND_QUOTE(str) LZ4_QUOTE(str)
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#define LZ4_VERSION_STRING LZ4_EXPAND_AND_QUOTE(LZ4_LIB_VERSION)
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LZ4LIB_API int LZ4_versionNumber (void);
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LZ4LIB_API const char* LZ4_versionString (void);
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LZ4LIB_API int LZ4_versionNumber (void); /**< library version number; to be used when checking dll version */
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LZ4LIB_API const char* LZ4_versionString (void); /**< library version string; to be used when checking dll version */
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/*-************************************
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@@ -108,8 +112,9 @@ LZ4LIB_API const char* LZ4_versionString (void);
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* Reduced memory usage can improve speed, due to cache effect
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* Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
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*/
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#define LZ4_MEMORY_USAGE 14
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#ifndef LZ4_MEMORY_USAGE
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# define LZ4_MEMORY_USAGE 14
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#endif
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/*-************************************
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* Simple Functions
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@@ -251,19 +256,19 @@ LZ4LIB_API int LZ4_loadDict (LZ4_stream_t* streamPtr, const char* dictionary, in
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/*! LZ4_compress_fast_continue() :
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* Compress buffer content 'src', using data from previously compressed blocks as dictionary to improve compression ratio.
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* Important : Previous data blocks are assumed to still be present and unmodified !
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* Important : Previous data blocks are assumed to remain present and unmodified !
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* 'dst' buffer must be already allocated.
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* If maxDstSize >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
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* If not, and if compressed data cannot fit into 'dst' buffer size, compression stops, and function returns a zero.
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* If dstCapacity >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
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* If not, and if compressed data cannot fit into 'dst' buffer size, compression stops, and function @return==0.
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* After an error, the stream status is invalid, it can only be reset or freed.
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*/
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LZ4LIB_API int LZ4_compress_fast_continue (LZ4_stream_t* streamPtr, const char* src, char* dst, int srcSize, int maxDstSize, int acceleration);
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LZ4LIB_API int LZ4_compress_fast_continue (LZ4_stream_t* streamPtr, const char* src, char* dst, int srcSize, int dstCapacity, int acceleration);
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/*! LZ4_saveDict() :
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* If previously compressed data block is not guaranteed to remain available at its memory location,
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* If previously compressed data block is not guaranteed to remain available at its current memory location,
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* save it into a safer place (char* safeBuffer).
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* Note : you don't need to call LZ4_loadDict() afterwards,
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* dictionary is immediately usable, you can therefore call LZ4_compress_fast_continue().
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* Return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error.
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* Note : it's not necessary to call LZ4_loadDict() after LZ4_saveDict(), dictionary is immediately usable.
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* @return : saved dictionary size in bytes (necessarily <= dictSize), or 0 if error.
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*/
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LZ4LIB_API int LZ4_saveDict (LZ4_stream_t* streamPtr, char* safeBuffer, int dictSize);
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@@ -274,7 +279,8 @@ LZ4LIB_API int LZ4_saveDict (LZ4_stream_t* streamPtr, char* safeBuffer, int dict
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************************************************/
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typedef union LZ4_streamDecode_u LZ4_streamDecode_t; /* incomplete type (defined later) */
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/* creation / destruction of streaming decompression tracking structure */
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/*! LZ4_createStreamDecode() and LZ4_freeStreamDecode() :
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* creation / destruction of streaming decompression tracking structure */
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LZ4LIB_API LZ4_streamDecode_t* LZ4_createStreamDecode(void);
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LZ4LIB_API int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream);
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@@ -285,22 +291,21 @@ LZ4LIB_API int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_str
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*/
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LZ4LIB_API int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize);
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/*!
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LZ4_decompress_*_continue() :
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These decoding functions allow decompression of multiple blocks in "streaming" mode.
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Previously decoded blocks *must* remain available at the memory position where they were decoded (up to 64 KB)
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In the case of a ring buffers, decoding buffer must be either :
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- Exactly same size as encoding buffer, with same update rule (block boundaries at same positions)
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In which case, the decoding & encoding ring buffer can have any size, including very small ones ( < 64 KB).
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- Larger than encoding buffer, by a minimum of maxBlockSize more bytes.
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maxBlockSize is implementation dependent. It's the maximum size you intend to compress into a single block.
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In which case, encoding and decoding buffers do not need to be synchronized,
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and encoding ring buffer can have any size, including small ones ( < 64 KB).
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- _At least_ 64 KB + 8 bytes + maxBlockSize.
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In which case, encoding and decoding buffers do not need to be synchronized,
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and encoding ring buffer can have any size, including larger than decoding buffer.
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Whenever these conditions are not possible, save the last 64KB of decoded data into a safe buffer,
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and indicate where it is saved using LZ4_setStreamDecode()
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/*! LZ4_decompress_*_continue() :
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* These decoding functions allow decompression of multiple blocks in "streaming" mode.
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* Previously decoded blocks *must* remain available at the memory position where they were decoded (up to 64 KB)
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* In the case of a ring buffers, decoding buffer must be either :
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* - Exactly same size as encoding buffer, with same update rule (block boundaries at same positions)
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* In which case, the decoding & encoding ring buffer can have any size, including very small ones ( < 64 KB).
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* - Larger than encoding buffer, by a minimum of maxBlockSize more bytes.
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* maxBlockSize is implementation dependent. It's the maximum size you intend to compress into a single block.
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* In which case, encoding and decoding buffers do not need to be synchronized,
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* and encoding ring buffer can have any size, including small ones ( < 64 KB).
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* - _At least_ 64 KB + 8 bytes + maxBlockSize.
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* In which case, encoding and decoding buffers do not need to be synchronized,
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* and encoding ring buffer can have any size, including larger than decoding buffer.
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* Whenever these conditions are not possible, save the last 64KB of decoded data into a safe buffer,
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* and indicate where it is saved using LZ4_setStreamDecode()
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*/
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LZ4LIB_API int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxDecompressedSize);
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LZ4LIB_API int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int originalSize);
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@@ -374,7 +379,7 @@ typedef struct {
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* init this structure before first use.
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* note : only use in association with static linking !
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* this definition is not API/ABI safe,
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* and may change in a future version !
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* it may change in a future version !
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*/
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#define LZ4_STREAMSIZE_U64 ((1 << (LZ4_MEMORY_USAGE-3)) + 4)
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#define LZ4_STREAMSIZE (LZ4_STREAMSIZE_U64 * sizeof(unsigned long long))
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@@ -400,11 +405,12 @@ union LZ4_streamDecode_u {
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} ; /* previously typedef'd to LZ4_streamDecode_t */
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/*=************************************
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/*-************************************
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* Obsolete Functions
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**************************************/
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/* Deprecation warnings */
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/* Should these warnings be a problem,
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/*! Deprecation warnings
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Should deprecation warnings be a problem,
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it is generally possible to disable them,
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typically with -Wno-deprecated-declarations for gcc
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or _CRT_SECURE_NO_WARNINGS in Visual.
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@@ -428,36 +434,30 @@ union LZ4_streamDecode_u {
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#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
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/* Obsolete compression functions */
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LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress (const char* source, char* dest, int sourceSize);
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LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize);
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LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
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LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
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LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
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LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress (const char* source, char* dest, int sourceSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_default() instead") int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead") int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead") int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_streamPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
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/* Obsolete decompression functions */
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/* These function names are completely deprecated and must no longer be used.
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They are only provided in lz4.c for compatibility with older programs.
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- LZ4_uncompress is the same as LZ4_decompress_fast
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- LZ4_uncompress_unknownOutputSize is the same as LZ4_decompress_safe
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These function prototypes are now disabled; uncomment them only if you really need them.
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It is highly recommended to stop using these prototypes and migrate to maintained ones */
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/* int LZ4_uncompress (const char* source, char* dest, int outputSize); */
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/* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_fast() instead") int LZ4_uncompress (const char* source, char* dest, int outputSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_safe() instead") int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize);
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/* Obsolete streaming functions; use new streaming interface whenever possible */
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LZ4_DEPRECATED("use LZ4_createStream() instead") void* LZ4_create (char* inputBuffer);
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LZ4_DEPRECATED("use LZ4_createStream() instead") int LZ4_sizeofStreamState(void);
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LZ4_DEPRECATED("use LZ4_resetStream() instead") int LZ4_resetStreamState(void* state, char* inputBuffer);
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LZ4_DEPRECATED("use LZ4_saveDict() instead") char* LZ4_slideInputBuffer (void* state);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_createStream() instead") void* LZ4_create (char* inputBuffer);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_createStream() instead") int LZ4_sizeofStreamState(void);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_resetStream() instead") int LZ4_resetStreamState(void* state, char* inputBuffer);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_saveDict() instead") char* LZ4_slideInputBuffer (void* state);
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/* Obsolete streaming decoding functions */
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LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
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LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead") int LZ4_decompress_safe_withPrefix64k (const char* src, char* dst, int compressedSize, int maxDstSize);
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LZ4LIB_API LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead") int LZ4_decompress_fast_withPrefix64k (const char* src, char* dst, int originalSize);
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#endif /* LZ4_H_2983827168210 */
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#if defined (__cplusplus)
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}
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#endif
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#endif /* LZ4_H_2983827168210 */
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