#ifdef ZBUFF_STATIC_LINKING_ONLY
-/* *************************************
-* Dependency
-***************************************/
-#include "zstd_static.h" /* ZSTD_parameters */
+/* ====================================================================================
+ * The definitions in this section are considered experimental.
+ * They should never be used in association with a dynamic library, as they may change in the future.
+ * They are provided for advanced usages.
+ * Use them only in association with static linking.
+ * ==================================================================================== */
+/*--- Dependency ---*/
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_parameters */
+#include "zstd.h"
-/*-*************************************
-* Advanced functions
-***************************************/
+
+/*--- External memory ---*/
/*! ZBUFF_createCCtx_advanced() :
* Create a ZBUFF compression context using external alloc and free functions */
ZSTDLIB_API ZBUFF_CCtx* ZBUFF_createCCtx_advanced(ZSTD_customMem customMem);
ZSTDLIB_API ZBUFF_DCtx* ZBUFF_createDCtx_advanced(ZSTD_customMem customMem);
-/* *************************************
-* Advanced Streaming functions
-***************************************/
+/*--- Advanced Streaming function ---*/
ZSTDLIB_API size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* zbc,
const void* dict, size_t dictSize,
ZSTD_parameters params, U64 pledgedSrcSize);
You can contact the author at :
- zstd source repository : https://github.com/Cyan4973/zstd
*/
-#ifndef ZSTD_H
-#define ZSTD_H
+#ifndef ZSTD_H_235446
+#define ZSTD_H_235446
#if defined (__cplusplus)
extern "C" {
const void* dict,size_t dictSize);
+#ifdef ZSTD_STATIC_LINKING_ONLY
+
+/* ====================================================================================
+ * The definitions in this section are considered experimental.
+ * They should never be used in association with a dynamic library, as they may change in the future.
+ * They are provided for advanced usages.
+ * Use them only in association with static linking.
+ * ==================================================================================== */
+
+/*--- Dependency ---*/
+#include "mem.h"
+
+
+/*--- Constants ---*/
+#define ZSTD_MAGICNUMBER 0xFD2FB526 /* v0.6 */
+#define ZSTD_MAGIC_SKIPPABLE_START 0x184D2A50U
+
+#define ZSTD_WINDOWLOG_MAX ((U32)(MEM_32bits() ? 25 : 27))
+#define ZSTD_WINDOWLOG_MIN 18
+#define ZSTD_CHAINLOG_MAX (ZSTD_WINDOWLOG_MAX+1)
+#define ZSTD_CHAINLOG_MIN 4
+#define ZSTD_HASHLOG_MAX ZSTD_WINDOWLOG_MAX
+#define ZSTD_HASHLOG_MIN 12
+#define ZSTD_HASHLOG3_MAX 17
+#define ZSTD_HASHLOG3_MIN 15
+#define ZSTD_SEARCHLOG_MAX (ZSTD_WINDOWLOG_MAX-1)
+#define ZSTD_SEARCHLOG_MIN 1
+#define ZSTD_SEARCHLENGTH_MAX 7
+#define ZSTD_SEARCHLENGTH_MIN 3
+#define ZSTD_TARGETLENGTH_MIN 4
+#define ZSTD_TARGETLENGTH_MAX 999
+
+
+/*--- Types ---*/
+typedef enum { ZSTD_fast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_btopt } ZSTD_strategy; /* from faster to stronger */
+
+typedef struct {
+ U32 windowLog; /* largest match distance : larger == more compression, more memory needed during decompression */
+ U32 chainLog; /* fully searched segment : larger == more compression, slower, more memory (useless for fast) */
+ U32 hashLog; /* dispatch table : larger == faster, more memory */
+ U32 searchLog; /* nb of searches : larger == more compression, slower */
+ U32 searchLength; /* match length searched : larger == faster decompression, sometimes less compression */
+ U32 targetLength; /* acceptable match size for optimal parser (only) : larger == more compression, slower */
+ ZSTD_strategy strategy;
+} ZSTD_compressionParameters;
+
+typedef struct {
+ U32 contentSizeFlag; /* 1: content size will be in frame header (if known). */
+ U32 checksumFlag; /* 1: will generate a 22-bits checksum at end of frame, to be used for error detection by decompressor */
+ U32 noDictIDFlag; /* 1: no dict ID will be saved into frame header (if dictionary compression) */
+} ZSTD_frameParameters;
+
+typedef struct {
+ ZSTD_compressionParameters cParams;
+ ZSTD_frameParameters fParams;
+} ZSTD_parameters;
+
+/* custom memory allocation functions */
+typedef void* (*ZSTD_allocFunction) (void* opaque, size_t size);
+typedef void (*ZSTD_freeFunction) (void* opaque, void* address);
+typedef struct { ZSTD_allocFunction customAlloc; ZSTD_freeFunction customFree; void* opaque; } ZSTD_customMem;
+
+
+/*-*************************************
+* Advanced functions
+***************************************/
+/*! ZSTD_createCCtx_advanced() :
+ * Create a ZSTD compression context using external alloc and free functions */
+ZSTDLIB_API ZSTD_CCtx* ZSTD_createCCtx_advanced(ZSTD_customMem customMem);
+
+/*! ZSTD_createDCtx_advanced() :
+ * Create a ZSTD decompression context using external alloc and free functions */
+ZSTDLIB_API ZSTD_DCtx* ZSTD_createDCtx_advanced(ZSTD_customMem customMem);
+
+ZSTDLIB_API unsigned ZSTD_maxCLevel (void);
+
+/*! ZSTD_getCParams() :
+* @return ZSTD_compressionParameters structure for a selected compression level and srcSize.
+* `srcSize` value is optional, select 0 if not known */
+ZSTDLIB_API ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, U64 srcSize, size_t dictSize);
+
+/*! ZSTD_checkParams() :
+* Ensure param values remain within authorized range */
+ZSTDLIB_API size_t ZSTD_checkCParams(ZSTD_compressionParameters params);
+
+/*! ZSTD_adjustParams() :
+* optimize params for a given `srcSize` and `dictSize`.
+* both values are optional, select `0` if unknown. */
+ZSTDLIB_API ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, U64 srcSize, size_t dictSize);
+
+/*! ZSTD_compress_advanced() :
+* Same as ZSTD_compress_usingDict(), with fine-tune control of each compression parameter */
+ZSTDLIB_API size_t ZSTD_compress_advanced (ZSTD_CCtx* ctx,
+ void* dst, size_t dstCapacity,
+ const void* src, size_t srcSize,
+ const void* dict,size_t dictSize,
+ ZSTD_parameters params);
+
+/*! ZSTD_compress_usingPreparedDCtx() :
+* Same as ZSTD_compress_usingDict, but using a reference context `preparedCCtx`, where dictionary has been loaded.
+* It avoids reloading the dictionary each time.
+* `preparedCCtx` must have been properly initialized using ZSTD_compressBegin_usingDict() or ZSTD_compressBegin_advanced().
+* Requires 2 contexts : 1 for reference (preparedCCtx) which will not be modified, and 1 to run the compression operation (cctx) */
+ZSTDLIB_API size_t ZSTD_compress_usingPreparedCCtx(
+ ZSTD_CCtx* cctx, const ZSTD_CCtx* preparedCCtx,
+ void* dst, size_t dstCapacity,
+ const void* src, size_t srcSize);
+
+/*- Advanced Decompression functions -*/
+
+/*! ZSTD_decompress_usingPreparedDCtx() :
+* Same as ZSTD_decompress_usingDict, but using a reference context `preparedDCtx`, where dictionary has been loaded.
+* It avoids reloading the dictionary each time.
+* `preparedDCtx` must have been properly initialized using ZSTD_decompressBegin_usingDict().
+* Requires 2 contexts : 1 for reference (preparedDCtx), which will not be modified, and 1 to run the decompression operation (dctx) */
+ZSTDLIB_API size_t ZSTD_decompress_usingPreparedDCtx(
+ ZSTD_DCtx* dctx, const ZSTD_DCtx* preparedDCtx,
+ void* dst, size_t dstCapacity,
+ const void* src, size_t srcSize);
+
+
+/* **************************************
+* Streaming functions (direct mode)
+****************************************/
+ZSTDLIB_API size_t ZSTD_compressBegin(ZSTD_CCtx* cctx, int compressionLevel);
+ZSTDLIB_API size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, int compressionLevel);
+ZSTDLIB_API size_t ZSTD_compressBegin_advanced(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, ZSTD_parameters params, U64 pledgedSrcSize);
+ZSTDLIB_API size_t ZSTD_copyCCtx(ZSTD_CCtx* cctx, const ZSTD_CCtx* preparedCCtx);
+
+ZSTDLIB_API size_t ZSTD_compressContinue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
+ZSTDLIB_API size_t ZSTD_compressEnd(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity);
+
+/*
+ Streaming compression, synchronous mode (bufferless)
+
+ A ZSTD_CCtx object is required to track streaming operations.
+ Use ZSTD_createCCtx() / ZSTD_freeCCtx() to manage it.
+ ZSTD_CCtx object can be re-used multiple times within successive compression operations.
+
+ Start by initializing a context.
+ Use ZSTD_compressBegin(), or ZSTD_compressBegin_usingDict() for dictionary compression,
+ or ZSTD_compressBegin_advanced(), for finer parameter control.
+ It's also possible to duplicate a reference context which has already been initialized, using ZSTD_copyCCtx()
+
+ Then, consume your input using ZSTD_compressContinue().
+ The interface is synchronous, so all input will be consumed and produce a compressed output.
+ You must ensure there is enough space in destination buffer to store compressed data under worst case scenario.
+ Worst case evaluation is provided by ZSTD_compressBound().
+
+ Finish a frame with ZSTD_compressEnd(), which will write the epilogue.
+ Without the epilogue, frames will be considered incomplete by decoder.
+
+ You can then reuse ZSTD_CCtx to compress some new frame.
+*/
+
+typedef struct {
+ U64 frameContentSize;
+ U32 windowLog;
+ U32 dictID;
+ U32 checksumFlag;
+} ZSTD_frameParams;
+
+#define ZSTD_FRAMEHEADERSIZE_MAX 18 /* for static allocation */
+static const size_t ZSTD_frameHeaderSize_min = 6;
+static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
+static const size_t ZSTD_skippableHeaderSize = 8; /* magic number + skippable frame length */
+ZSTDLIB_API size_t ZSTD_getFrameParams(ZSTD_frameParams* fparamsPtr, const void* src, size_t srcSize); /**< doesn't consume input */
+
+ZSTDLIB_API size_t ZSTD_decompressBegin(ZSTD_DCtx* dctx);
+ZSTDLIB_API size_t ZSTD_decompressBegin_usingDict(ZSTD_DCtx* dctx, const void* dict, size_t dictSize);
+ZSTDLIB_API void ZSTD_copyDCtx(ZSTD_DCtx* dctx, const ZSTD_DCtx* preparedDCtx);
+
+ZSTDLIB_API size_t ZSTD_nextSrcSizeToDecompress(ZSTD_DCtx* dctx);
+ZSTDLIB_API size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
+
+/*
+ Streaming decompression, direct mode (bufferless)
+
+ A ZSTD_DCtx object is required to track streaming operations.
+ Use ZSTD_createDCtx() / ZSTD_freeDCtx() to manage it.
+ A ZSTD_DCtx object can be re-used multiple times.
+
+ First optional operation is to retrieve frame parameters, using ZSTD_getFrameParams(), which doesn't consume the input.
+ It can provide the minimum size of rolling buffer required to properly decompress data,
+ and optionally the final size of uncompressed content.
+ (Note : content size is an optional info that may not be present. 0 means : content size unknown)
+ Frame parameters are extracted from the beginning of compressed frame.
+ The amount of data to read is variable, from ZSTD_frameHeaderSize_min to ZSTD_frameHeaderSize_max (so if `srcSize` >= ZSTD_frameHeaderSize_max, it will always work)
+ If `srcSize` is too small for operation to succeed, function will return the minimum size it requires to produce a result.
+ Result : 0 when successful, it means the ZSTD_frameParams structure has been filled.
+ >0 : means there is not enough data into `src`. Provides the expected size to successfully decode header.
+ errorCode, which can be tested using ZSTD_isError()
+
+ Start decompression, with ZSTD_decompressBegin() or ZSTD_decompressBegin_usingDict().
+ Alternatively, you can copy a prepared context, using ZSTD_copyDCtx().
+
+ Then use ZSTD_nextSrcSizeToDecompress() and ZSTD_decompressContinue() alternatively.
+ ZSTD_nextSrcSizeToDecompress() tells how much bytes to provide as 'srcSize' to ZSTD_decompressContinue().
+ ZSTD_decompressContinue() requires this exact amount of bytes, or it will fail.
+ ZSTD_decompressContinue() needs previous data blocks during decompression, up to (1 << windowlog).
+ They should preferably be located contiguously, prior to current block. Alternatively, a round buffer is also possible.
+
+ @result of ZSTD_decompressContinue() is the number of bytes regenerated within 'dst' (necessarily <= dstCapacity)
+ It can be zero, which is not an error; it just means ZSTD_decompressContinue() has decoded some header.
+
+ A frame is fully decoded when ZSTD_nextSrcSizeToDecompress() returns zero.
+ Context can then be reset to start a new decompression.
+
+ Skippable frames allow the integration of user-defined data into a flow of concatenated frames.
+ Skippable frames will be ignored (skipped) by a decompressor. The format of skippable frame is following:
+ a) Skippable frame ID - 4 Bytes, Little endian format, any value from 0x184D2A50 to 0x184D2A5F
+ b) Frame Size - 4 Bytes, Little endian format, unsigned 32-bits
+ c) Frame Content - any content (User Data) of length equal to Frame Size
+ For skippable frames ZSTD_decompressContinue() always returns 0.
+ For skippable frames ZSTD_getFrameParams() returns fparamsPtr->windowLog==0 what means that a frame is skippable.
+ It also returns Frame Size as fparamsPtr->frameContentSize.
+*/
+
+
+/* **************************************
+* Block functions
+****************************************/
+/*! Block functions produce and decode raw zstd blocks, without frame metadata.
+ User will have to take in charge required information to regenerate data, such as compressed and content sizes.
+
+ A few rules to respect :
+ - Uncompressed block size must be <= ZSTD_BLOCKSIZE_MAX (128 KB)
+ - Compressing or decompressing requires a context structure
+ + Use ZSTD_createCCtx() and ZSTD_createDCtx()
+ - It is necessary to init context before starting
+ + compression : ZSTD_compressBegin()
+ + decompression : ZSTD_decompressBegin()
+ + variants _usingDict() are also allowed
+ + copyCCtx() and copyDCtx() work too
+ - When a block is considered not compressible enough, ZSTD_compressBlock() result will be zero.
+ In which case, nothing is produced into `dst`.
+ + User must test for such outcome and deal directly with uncompressed data
+ + ZSTD_decompressBlock() doesn't accept uncompressed data as input !!
+*/
+
+#define ZSTD_BLOCKSIZE_MAX (128 * 1024) /* define, for static allocation */
+ZSTDLIB_API size_t ZSTD_compressBlock (ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
+ZSTDLIB_API size_t ZSTD_decompressBlock(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
+
+
+/*-*************************************
+* Error management
+***************************************/
+#include "error_public.h"
+/*! ZSTD_getErrorCode() :
+ convert a `size_t` function result into a `ZSTD_ErrorCode` enum type,
+ which can be used to compare directly with enum list published into "error_public.h" */
+ZSTDLIB_API ZSTD_ErrorCode ZSTD_getErrorCode(size_t functionResult);
+ZSTDLIB_API const char* ZSTD_getErrorString(ZSTD_ErrorCode code);
+
+
+#endif /* ZSTD_STATIC_LINKING_ONLY */
+
#if defined (__cplusplus)
}
#endif
-#endif /* ZSTD_H */
+#endif /* ZSTD_H_235446 */
***************************************/
#include <stdlib.h> /* malloc */
#include "error_private.h"
-#include "zstd_static.h" /* declaration of ZSTD_isError, ZSTD_getErrorName, ZSTD_getErrorCode */
+#define ZSTD_STATIC_LINKING_ONLY
+#include "zstd.h" /* declaration of ZSTD_isError, ZSTD_getErrorName, ZSTD_getErrorCode, ZSTD_getErrorString, ZSTD_versionNumber */
#include "zbuff.h" /* declaration of ZBUFF_isError, ZBUFF_getErrorName */
***************************************/
#include "mem.h"
#include "error_private.h"
-#include "zstd_static.h"
+#define ZSTD_STATIC_LINKING_ONLY
+#include "zstd.h"
/*-*************************************
+++ /dev/null
-/*
- zstd - standard compression library
- Header File for static linking only
- Copyright (C) 2014-2016, Yann Collet.
-
- 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 :
- - zstd homepage : http://www.zstd.net
-*/
-#ifndef ZSTD_STATIC_H
-#define ZSTD_STATIC_H
-
-/* The prototypes defined within this file are considered experimental.
- * They should not be used in the context DLL as they may change in the future.
- * Prefer static linking if you need them, to control breaking version changes issues.
- */
-
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-/*-*************************************
-* Dependencies
-***************************************/
-#include "zstd.h"
-#include "mem.h"
-
-
-/*-*************************************
-* Constants
-***************************************/
-#define ZSTD_MAGICNUMBER 0xFD2FB526 /* v0.6 */
-#define ZSTD_MAGIC_SKIPPABLE_START 0x184D2A50U
-
-
-/*-*************************************
-* Types
-***************************************/
-#define ZSTD_WINDOWLOG_MAX ((U32)(MEM_32bits() ? 25 : 27))
-#define ZSTD_WINDOWLOG_MIN 18
-#define ZSTD_CHAINLOG_MAX (ZSTD_WINDOWLOG_MAX+1)
-#define ZSTD_CHAINLOG_MIN 4
-#define ZSTD_HASHLOG_MAX ZSTD_WINDOWLOG_MAX
-#define ZSTD_HASHLOG_MIN 12
-#define ZSTD_HASHLOG3_MAX 17
-#define ZSTD_HASHLOG3_MIN 15
-#define ZSTD_SEARCHLOG_MAX (ZSTD_WINDOWLOG_MAX-1)
-#define ZSTD_SEARCHLOG_MIN 1
-#define ZSTD_SEARCHLENGTH_MAX 7
-#define ZSTD_SEARCHLENGTH_MIN 3
-#define ZSTD_TARGETLENGTH_MIN 4
-#define ZSTD_TARGETLENGTH_MAX 999
-
-/* from faster to stronger */
-typedef enum { ZSTD_fast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_btopt } ZSTD_strategy;
-
-typedef struct {
- U32 windowLog; /* largest match distance : larger == more compression, more memory needed during decompression */
- U32 chainLog; /* fully searched segment : larger == more compression, slower, more memory (useless for fast) */
- U32 hashLog; /* dispatch table : larger == faster, more memory */
- U32 searchLog; /* nb of searches : larger == more compression, slower */
- U32 searchLength; /* match length searched : larger == faster decompression, sometimes less compression */
- U32 targetLength; /* acceptable match size for optimal parser (only) : larger == more compression, slower */
- ZSTD_strategy strategy;
-} ZSTD_compressionParameters;
-
-typedef struct {
- U32 contentSizeFlag; /* 1: content size will be in frame header (if known). */
- U32 checksumFlag; /* 1: will generate a 22-bits checksum at end of frame, to be used for error detection by decompressor */
- U32 noDictIDFlag; /* 1: no dict ID will be saved into frame header (if dictionary compression) */
-} ZSTD_frameParameters;
-
-typedef struct {
- ZSTD_compressionParameters cParams;
- ZSTD_frameParameters fParams;
-} ZSTD_parameters;
-
-/* custom memory allocation functions */
-typedef void* (*ZSTD_allocFunction) (void* opaque, size_t size);
-typedef void (*ZSTD_freeFunction) (void* opaque, void* address);
-typedef struct { ZSTD_allocFunction customAlloc; ZSTD_freeFunction customFree; void* opaque; } ZSTD_customMem;
-
-
-/*-*************************************
-* Advanced functions
-***************************************/
-/*! ZSTD_createCCtx_advanced() :
- * Create a ZSTD compression context using external alloc and free functions */
-ZSTDLIB_API ZSTD_CCtx* ZSTD_createCCtx_advanced(ZSTD_customMem customMem);
-
-/*! ZSTD_createDCtx_advanced() :
- * Create a ZSTD decompression context using external alloc and free functions */
-ZSTDLIB_API ZSTD_DCtx* ZSTD_createDCtx_advanced(ZSTD_customMem customMem);
-
-ZSTDLIB_API unsigned ZSTD_maxCLevel (void);
-
-/*! ZSTD_getCParams() :
-* @return ZSTD_compressionParameters structure for a selected compression level and srcSize.
-* `srcSize` value is optional, select 0 if not known */
-ZSTDLIB_API ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, U64 srcSize, size_t dictSize);
-
-/*! ZSTD_checkParams() :
-* Ensure param values remain within authorized range */
-ZSTDLIB_API size_t ZSTD_checkCParams(ZSTD_compressionParameters params);
-
-/*! ZSTD_adjustParams() :
-* optimize params for a given `srcSize` and `dictSize`.
-* both values are optional, select `0` if unknown. */
-ZSTDLIB_API ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, U64 srcSize, size_t dictSize);
-
-/*! ZSTD_compress_advanced() :
-* Same as ZSTD_compress_usingDict(), with fine-tune control of each compression parameter */
-ZSTDLIB_API size_t ZSTD_compress_advanced (ZSTD_CCtx* ctx,
- void* dst, size_t dstCapacity,
- const void* src, size_t srcSize,
- const void* dict,size_t dictSize,
- ZSTD_parameters params);
-
-/*! ZSTD_compress_usingPreparedDCtx() :
-* Same as ZSTD_compress_usingDict, but using a reference context `preparedCCtx`, where dictionary has been loaded.
-* It avoids reloading the dictionary each time.
-* `preparedCCtx` must have been properly initialized using ZSTD_compressBegin_usingDict() or ZSTD_compressBegin_advanced().
-* Requires 2 contexts : 1 for reference (preparedCCtx) which will not be modified, and 1 to run the compression operation (cctx) */
-ZSTDLIB_API size_t ZSTD_compress_usingPreparedCCtx(
- ZSTD_CCtx* cctx, const ZSTD_CCtx* preparedCCtx,
- void* dst, size_t dstCapacity,
- const void* src, size_t srcSize);
-
-/*- Advanced Decompression functions -*/
-
-/*! ZSTD_decompress_usingPreparedDCtx() :
-* Same as ZSTD_decompress_usingDict, but using a reference context `preparedDCtx`, where dictionary has been loaded.
-* It avoids reloading the dictionary each time.
-* `preparedDCtx` must have been properly initialized using ZSTD_decompressBegin_usingDict().
-* Requires 2 contexts : 1 for reference (preparedDCtx), which will not be modified, and 1 to run the decompression operation (dctx) */
-ZSTDLIB_API size_t ZSTD_decompress_usingPreparedDCtx(
- ZSTD_DCtx* dctx, const ZSTD_DCtx* preparedDCtx,
- void* dst, size_t dstCapacity,
- const void* src, size_t srcSize);
-
-
-/* **************************************
-* Streaming functions (direct mode)
-****************************************/
-ZSTDLIB_API size_t ZSTD_compressBegin(ZSTD_CCtx* cctx, int compressionLevel);
-ZSTDLIB_API size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, int compressionLevel);
-ZSTDLIB_API size_t ZSTD_compressBegin_advanced(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, ZSTD_parameters params, U64 pledgedSrcSize);
-ZSTDLIB_API size_t ZSTD_copyCCtx(ZSTD_CCtx* cctx, const ZSTD_CCtx* preparedCCtx);
-
-ZSTDLIB_API size_t ZSTD_compressContinue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
-ZSTDLIB_API size_t ZSTD_compressEnd(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity);
-
-/*
- Streaming compression, synchronous mode (bufferless)
-
- A ZSTD_CCtx object is required to track streaming operations.
- Use ZSTD_createCCtx() / ZSTD_freeCCtx() to manage it.
- ZSTD_CCtx object can be re-used multiple times within successive compression operations.
-
- Start by initializing a context.
- Use ZSTD_compressBegin(), or ZSTD_compressBegin_usingDict() for dictionary compression,
- or ZSTD_compressBegin_advanced(), for finer parameter control.
- It's also possible to duplicate a reference context which has already been initialized, using ZSTD_copyCCtx()
-
- Then, consume your input using ZSTD_compressContinue().
- The interface is synchronous, so all input will be consumed and produce a compressed output.
- You must ensure there is enough space in destination buffer to store compressed data under worst case scenario.
- Worst case evaluation is provided by ZSTD_compressBound().
-
- Finish a frame with ZSTD_compressEnd(), which will write the epilogue.
- Without the epilogue, frames will be considered incomplete by decoder.
-
- You can then reuse ZSTD_CCtx to compress some new frame.
-*/
-
-typedef struct {
- U64 frameContentSize;
- U32 windowLog;
- U32 dictID;
- U32 checksumFlag;
-} ZSTD_frameParams;
-
-#define ZSTD_FRAMEHEADERSIZE_MAX 18 /* for static allocation */
-static const size_t ZSTD_frameHeaderSize_min = 6;
-static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
-static const size_t ZSTD_skippableHeaderSize = 8; /* magic number + skippable frame length */
-ZSTDLIB_API size_t ZSTD_getFrameParams(ZSTD_frameParams* fparamsPtr, const void* src, size_t srcSize); /**< doesn't consume input */
-
-ZSTDLIB_API size_t ZSTD_decompressBegin(ZSTD_DCtx* dctx);
-ZSTDLIB_API size_t ZSTD_decompressBegin_usingDict(ZSTD_DCtx* dctx, const void* dict, size_t dictSize);
-ZSTDLIB_API void ZSTD_copyDCtx(ZSTD_DCtx* dctx, const ZSTD_DCtx* preparedDCtx);
-
-ZSTDLIB_API size_t ZSTD_nextSrcSizeToDecompress(ZSTD_DCtx* dctx);
-ZSTDLIB_API size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
-
-/*
- Streaming decompression, direct mode (bufferless)
-
- A ZSTD_DCtx object is required to track streaming operations.
- Use ZSTD_createDCtx() / ZSTD_freeDCtx() to manage it.
- A ZSTD_DCtx object can be re-used multiple times.
-
- First optional operation is to retrieve frame parameters, using ZSTD_getFrameParams(), which doesn't consume the input.
- It can provide the minimum size of rolling buffer required to properly decompress data,
- and optionally the final size of uncompressed content.
- (Note : content size is an optional info that may not be present. 0 means : content size unknown)
- Frame parameters are extracted from the beginning of compressed frame.
- The amount of data to read is variable, from ZSTD_frameHeaderSize_min to ZSTD_frameHeaderSize_max (so if `srcSize` >= ZSTD_frameHeaderSize_max, it will always work)
- If `srcSize` is too small for operation to succeed, function will return the minimum size it requires to produce a result.
- Result : 0 when successful, it means the ZSTD_frameParams structure has been filled.
- >0 : means there is not enough data into `src`. Provides the expected size to successfully decode header.
- errorCode, which can be tested using ZSTD_isError()
-
- Start decompression, with ZSTD_decompressBegin() or ZSTD_decompressBegin_usingDict().
- Alternatively, you can copy a prepared context, using ZSTD_copyDCtx().
-
- Then use ZSTD_nextSrcSizeToDecompress() and ZSTD_decompressContinue() alternatively.
- ZSTD_nextSrcSizeToDecompress() tells how much bytes to provide as 'srcSize' to ZSTD_decompressContinue().
- ZSTD_decompressContinue() requires this exact amount of bytes, or it will fail.
- ZSTD_decompressContinue() needs previous data blocks during decompression, up to (1 << windowlog).
- They should preferably be located contiguously, prior to current block. Alternatively, a round buffer is also possible.
-
- @result of ZSTD_decompressContinue() is the number of bytes regenerated within 'dst' (necessarily <= dstCapacity)
- It can be zero, which is not an error; it just means ZSTD_decompressContinue() has decoded some header.
-
- A frame is fully decoded when ZSTD_nextSrcSizeToDecompress() returns zero.
- Context can then be reset to start a new decompression.
-
- Skippable frames allow the integration of user-defined data into a flow of concatenated frames.
- Skippable frames will be ignored (skipped) by a decompressor. The format of skippable frame is following:
- a) Skippable frame ID - 4 Bytes, Little endian format, any value from 0x184D2A50 to 0x184D2A5F
- b) Frame Size - 4 Bytes, Little endian format, unsigned 32-bits
- c) Frame Content - any content (User Data) of length equal to Frame Size
- For skippable frames ZSTD_decompressContinue() always returns 0.
- For skippable frames ZSTD_getFrameParams() returns fparamsPtr->windowLog==0 what means that a frame is skippable.
- It also returns Frame Size as fparamsPtr->frameContentSize.
-*/
-
-
-/* **************************************
-* Block functions
-****************************************/
-/*! Block functions produce and decode raw zstd blocks, without frame metadata.
- User will have to take in charge required information to regenerate data, such as compressed and content sizes.
-
- A few rules to respect :
- - Uncompressed block size must be <= ZSTD_BLOCKSIZE_MAX (128 KB)
- - Compressing or decompressing requires a context structure
- + Use ZSTD_createCCtx() and ZSTD_createDCtx()
- - It is necessary to init context before starting
- + compression : ZSTD_compressBegin()
- + decompression : ZSTD_decompressBegin()
- + variants _usingDict() are also allowed
- + copyCCtx() and copyDCtx() work too
- - When a block is considered not compressible enough, ZSTD_compressBlock() result will be zero.
- In which case, nothing is produced into `dst`.
- + User must test for such outcome and deal directly with uncompressed data
- + ZSTD_decompressBlock() doesn't accept uncompressed data as input !!
-*/
-
-#define ZSTD_BLOCKSIZE_MAX (128 * 1024) /* define, for static allocation */
-ZSTDLIB_API size_t ZSTD_compressBlock (ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
-ZSTDLIB_API size_t ZSTD_decompressBlock(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize);
-
-
-/*-*************************************
-* Error management
-***************************************/
-#include "error_public.h"
-/*! ZSTD_getErrorCode() :
- convert a `size_t` function result into a `ZSTD_ErrorCode` enum type,
- which can be used to compare directly with enum list published into "error_public.h" */
-ZSTDLIB_API ZSTD_ErrorCode ZSTD_getErrorCode(size_t functionResult);
-ZSTDLIB_API const char* ZSTD_getErrorString(ZSTD_ErrorCode code);
-
-
-#if defined (__cplusplus)
-}
-#endif
-
-#endif /* ZSTD_STATIC_H */
***************************************/
#include <stdlib.h>
#include "error_private.h"
-#include "zstd_internal.h" /* MIN, ZSTD_blockHeaderSize */
-#include "zstd_static.h" /* ZSTD_BLOCKSIZE_MAX */
+#include "zstd_internal.h" /* MIN, ZSTD_blockHeaderSize, ZSTD_BLOCKSIZE_MAX */
#define ZBUFF_STATIC_LINKING_ONLY
#include "zbuff.h"
/*-*************************************
* Dependencies
***************************************/
-#include <string.h> /* memset */
+#include <string.h> /* memset */
#include "mem.h"
#define XXH_STATIC_LINKING_ONLY /* XXH64_state_t */
-#include "xxhash.h" /* XXH_reset, update, digest */
+#include "xxhash.h" /* XXH_reset, update, digest */
#include "fse_static.h"
#include "huf_static.h"
-#include "zstd_internal.h"
+#include "zstd_internal.h" /* includes zstd.h */
/*-*************************************
***************************************/
#include <stdlib.h>
#include "error_private.h"
-#include "zstd_internal.h" /* MIN, ZSTD_blockHeaderSize */
-#include "zstd_static.h" /* ZSTD_BLOCKSIZE_MAX */
+#include "zstd_internal.h" /* MIN, ZSTD_blockHeaderSize, ZSTD_BLOCKSIZE_MAX */
#define ZBUFF_STATIC_LINKING_ONLY
#include "zbuff.h"
#include <stdio.h> /* fprintf, fopen, ftello64 */
#include "mem.h"
-#include "zstd_static.h"
+#define ZSTD_STATIC_LINKING_ONLY
+#include "zstd.h"
#include "datagen.h" /* RDG_genBuffer */
#include "xxhash.h"
#include "mem.h"
#include "fileio.h"
-#include "zstd_static.h" /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_magicNumber, ZSTD_frameHeaderSize_max */
+#include "zstd.h"
#include "zstd_internal.h" /* MIN, KB, MB */
#define ZBUFF_STATIC_LINKING_ONLY
#include "zbuff.h"
#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
#include "mem.h"
-#include "zstd_static.h" /* ZSTD_VERSION_STRING */
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressContinue */
+#include "zstd.h" /* ZSTD_VERSION_STRING */
#include "fse_static.h"
#include "zbuff.h"
#include "datagen.h"
#include <sys/timeb.h> /* timeb */
#include <string.h> /* strcmp */
#include <time.h> /* clock_t */
-#include "zstd_static.h" /* ZSTD_VERSION_STRING, ZSTD_getErrorCode */
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressContinue */
+#include "zstd.h" /* ZSTD_VERSION_STRING, ZSTD_getErrorCode */
#include "zdict.h" /* ZDICT_trainFromBuffer */
#include "datagen.h" /* RDG_genBuffer */
#include "mem.h"
#endif
#include "mem.h"
-#include "zstd_static.h"
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_parameters */
+#include "zstd.h"
#include "datagen.h"
#include "xxhash.h"
#include <sys/timeb.h> /* timeb */
#include <string.h> /* strcmp */
#include "mem.h"
-#include "zstd_static.h" /* ZSTD_compressBound(), ZSTD_maxCLevel() */
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel */
+#include "zstd.h" /* ZSTD_compressBound */
#define ZBUFF_STATIC_LINKING_ONLY
#include "zbuff.h" /* ZBUFF_createCCtx_advanced */
#include "datagen.h" /* RDG_genBuffer */
#ifndef ZSTD_NOBENCH
# include "bench.h" /* BMK_benchFiles, BMK_SetNbIterations */
#endif
-#include "zstd_static.h" /* ZSTD_maxCLevel, ZSTD version numbers */
#ifndef ZSTD_NODICT
# include "dibio.h"
#endif
+#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_maxCLevel */
+#include "zstd.h" /* ZSTD_VERSION_STRING */
projects / thirdparty / zstd.git / commitdiff
