| /* |
| fileio_legacy.c - File i/o handler for legacy format |
| Copyright (C) Yann Collet 2015-2016 |
| |
| GPL v2 License |
| |
| This program is free software; you can redistribute it and/or modify |
| it 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; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| You can contact the author at : |
| - zstd homepage : http://www.zstd.net |
| - zstd source repository : https://github.com/Cyan4973/zstd |
| */ |
| /* |
| Note : this file is not part of ZSTD compression library. |
| The license of ZSTD library is BSD. |
| The license of this file is GPLv2. |
| */ |
| |
| /* ************************************* |
| * Compiler Options |
| ***************************************/ |
| /* Disable some Visual warning messages */ |
| #ifdef _MSC_VER |
| # define _CRT_SECURE_NO_WARNINGS |
| # define _CRT_SECURE_NO_DEPRECATE /* VS2005 */ |
| # pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */ |
| #endif |
| |
| #define _FILE_OFFSET_BITS 64 /* Large file support on 32-bits unix */ |
| #define _POSIX_SOURCE 1 /* enable fileno() within <stdio.h> on unix */ |
| |
| |
| /* ************************************* |
| * Includes |
| ***************************************/ |
| #include <stdio.h> /* fprintf, fopen, fread, _fileno, stdin, stdout */ |
| #include <stdlib.h> /* malloc, free */ |
| #include <string.h> /* strcmp, strlen */ |
| #include <time.h> /* clock */ |
| #include <errno.h> /* errno */ |
| #include "mem.h" |
| #include "fileio_legacy.h" |
| #include "zstd_legacy.h" /* legacy support */ |
| |
| |
| /* ************************************* |
| * OS-specific Includes |
| ***************************************/ |
| #if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) |
| # include <fcntl.h> /* _O_BINARY */ |
| # include <io.h> /* _setmode, _isatty */ |
| # ifdef __MINGW32__ |
| /* int _fileno(FILE *stream); // seems no longer useful // MINGW somehow forgets to include this windows declaration into <stdio.h> */ |
| # endif |
| # define SET_BINARY_MODE(file) { int unused = _setmode(_fileno(file), _O_BINARY); (void)unused; } |
| # define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream)) |
| #else |
| # include <unistd.h> /* isatty */ |
| # define SET_BINARY_MODE(file) |
| # define IS_CONSOLE(stdStream) isatty(fileno(stdStream)) |
| #endif |
| |
| |
| /* ************************************* |
| * Constants |
| ***************************************/ |
| #define KB *(1U<<10) |
| #define MB *(1U<<20) |
| #define GB *(1U<<30) |
| |
| #define _1BIT 0x01 |
| #define _2BITS 0x03 |
| #define _3BITS 0x07 |
| #define _4BITS 0x0F |
| #define _6BITS 0x3F |
| #define _8BITS 0xFF |
| |
| #define BIT6 0x40 |
| #define BIT7 0x80 |
| |
| #define FIO_FRAMEHEADERSIZE 5 /* as a define, because needed to allocated table on stack */ |
| #define FSE_CHECKSUM_SEED 0 |
| |
| #define CACHELINE 64 |
| |
| |
| /* ************************************* |
| * Macros |
| ***************************************/ |
| #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) |
| #define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } |
| static U32 g_displayLevel = 1; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */ |
| |
| #define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \ |
| if ((FIO_GetMilliSpan(g_time) > refreshRate) || (g_displayLevel>=4)) \ |
| { g_time = clock(); DISPLAY(__VA_ARGS__); \ |
| if (g_displayLevel>=4) fflush(stdout); } } |
| static const unsigned refreshRate = 150; |
| static clock_t g_time = 0; |
| |
| |
| /* ************************************* |
| * Local Parameters |
| ***************************************/ |
| void FIO_legacy_setNotificationLevel(unsigned level) { g_displayLevel=level; } |
| |
| |
| /* ************************************* |
| * Exceptions |
| ***************************************/ |
| #ifndef DEBUG |
| # define DEBUG 0 |
| #endif |
| #define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__); |
| #define EXM_THROW(error, ...) \ |
| { \ |
| DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \ |
| DISPLAYLEVEL(1, "Error %i : ", error); \ |
| DISPLAYLEVEL(1, __VA_ARGS__); \ |
| DISPLAYLEVEL(1, "\n"); \ |
| exit(error); \ |
| } |
| |
| |
| /* ************************************* |
| * Functions |
| ***************************************/ |
| static unsigned FIO_GetMilliSpan(clock_t nPrevious) |
| { |
| clock_t nCurrent = clock(); |
| unsigned nSpan = (unsigned)(((nCurrent - nPrevious) * 1000) / CLOCKS_PER_SEC); |
| return nSpan; |
| } |
| |
| |
| unsigned long long FIOv01_decompressFrame(FILE* foutput, FILE* finput) |
| { |
| size_t const outBuffSize = 512 KB; |
| BYTE* outBuff = (BYTE*)malloc(outBuffSize); |
| size_t inBuffSize = 128 KB + 8; |
| BYTE inBuff[128 KB + 8]; |
| BYTE* op = outBuff; |
| BYTE* const oend = outBuff + outBuffSize; |
| U64 filesize = 0; |
| size_t toRead; |
| ZSTDv01_Dctx* dctx = ZSTDv01_createDCtx(); |
| |
| |
| /* init */ |
| if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame"); |
| |
| /* restore header, already read from input */ |
| MEM_writeLE32(inBuff, ZSTDv01_magicNumberLE); |
| { size_t const sizeCheck = ZSTDv01_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv01_magicNumberLE)); /* Decode frame header */ |
| if (ZSTDv01_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header"); } |
| |
| /* Main decompression Loop */ |
| toRead = ZSTDv01_nextSrcSizeToDecompress(dctx); |
| while (toRead){ |
| size_t readSize, decodedSize; |
| |
| /* Fill input buffer */ |
| if (toRead > inBuffSize) |
| EXM_THROW(43, "too large block"); |
| readSize = fread(inBuff, 1, toRead, finput); |
| if (readSize != toRead) |
| EXM_THROW(44, "Read error"); |
| |
| /* Decode block */ |
| decodedSize = ZSTDv01_decompressContinue(dctx, op, oend-op, inBuff, readSize); |
| if (ZSTDv01_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted"); |
| |
| if (decodedSize) { /* not a header */ |
| /* Write block */ |
| { size_t const sizeCheck = fwrite(op, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file"); } |
| filesize += decodedSize; |
| op += decodedSize; |
| if (op==oend) op = outBuff; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) ); |
| } |
| |
| /* prepare for next Block */ |
| toRead = ZSTDv01_nextSrcSizeToDecompress(dctx); |
| } |
| |
| /* release resources */ |
| free(outBuff); |
| free(dctx); |
| return filesize; |
| } |
| |
| |
| unsigned long long FIOv02_decompressFrame(FILE* foutput, FILE* finput) |
| { |
| size_t const outBuffSize = 512 KB; |
| BYTE* outBuff = (BYTE*)malloc(outBuffSize); |
| size_t inBuffSize = 128 KB + 8; |
| BYTE inBuff[128 KB + 8]; |
| BYTE* op = outBuff; |
| BYTE* const oend = outBuff + outBuffSize; |
| U64 filesize = 0; |
| size_t toRead; |
| size_t sizeCheck; |
| ZSTDv02_Dctx* dctx = ZSTDv02_createDCtx(); |
| |
| /* init */ |
| if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame"); |
| |
| /* restore header, already read from input */ |
| MEM_writeLE32(inBuff, ZSTDv02_magicNumber); |
| sizeCheck = ZSTDv02_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv02_magicNumber)); /* Decode frame header */ |
| if (ZSTDv02_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header"); |
| |
| /* Main decompression Loop */ |
| toRead = ZSTDv02_nextSrcSizeToDecompress(dctx); |
| while (toRead) { |
| size_t readSize, decodedSize; |
| |
| /* Fill input buffer */ |
| if (toRead > inBuffSize) |
| EXM_THROW(43, "too large block"); |
| readSize = fread(inBuff, 1, toRead, finput); |
| if (readSize != toRead) |
| EXM_THROW(44, "Read error"); |
| |
| /* Decode block */ |
| decodedSize = ZSTDv02_decompressContinue(dctx, op, oend-op, inBuff, readSize); |
| if (ZSTDv02_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted"); |
| |
| if (decodedSize) { /* not a header */ |
| /* Write block */ |
| sizeCheck = fwrite(op, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file"); |
| filesize += decodedSize; |
| op += decodedSize; |
| if (op==oend) op = outBuff; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) ); |
| } |
| |
| /* prepare for next Block */ |
| toRead = ZSTDv02_nextSrcSizeToDecompress(dctx); |
| } |
| |
| /* release resources */ |
| free(outBuff); |
| free(dctx); |
| return filesize; |
| } |
| |
| |
| unsigned long long FIOv03_decompressFrame(FILE* foutput, FILE* finput) |
| { |
| size_t const outBuffSize = 512 KB; |
| BYTE* outBuff = (BYTE*)malloc(outBuffSize); |
| size_t inBuffSize = 128 KB + 8; |
| BYTE inBuff[128 KB + 8]; |
| BYTE* op = outBuff; |
| BYTE* const oend = outBuff + outBuffSize; |
| U64 filesize = 0; |
| size_t toRead; |
| size_t sizeCheck; |
| ZSTDv03_Dctx* dctx = ZSTDv03_createDCtx(); |
| |
| /* init */ |
| if (outBuff==NULL) EXM_THROW(41, "Error : not enough memory to decode legacy frame"); |
| |
| /* restore header, already read from input */ |
| MEM_writeLE32(inBuff, ZSTDv03_magicNumber); |
| sizeCheck = ZSTDv03_decompressContinue(dctx, NULL, 0, inBuff, sizeof(ZSTDv03_magicNumber)); /* Decode frame header */ |
| if (ZSTDv03_isError(sizeCheck)) EXM_THROW(42, "Error decoding legacy header"); |
| |
| /* Main decompression Loop */ |
| toRead = ZSTDv03_nextSrcSizeToDecompress(dctx); |
| while (toRead) { |
| size_t readSize, decodedSize; |
| |
| /* Fill input buffer */ |
| if (toRead > inBuffSize) |
| EXM_THROW(43, "too large block"); |
| readSize = fread(inBuff, 1, toRead, finput); |
| if (readSize != toRead) |
| EXM_THROW(44, "Read error"); |
| |
| /* Decode block */ |
| decodedSize = ZSTDv03_decompressContinue(dctx, op, oend-op, inBuff, readSize); |
| if (ZSTDv03_isError(decodedSize)) EXM_THROW(45, "Decoding error : input corrupted"); |
| |
| if (decodedSize) { /* not a header */ |
| /* Write block */ |
| sizeCheck = fwrite(op, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(46, "Write error : unable to write data block to destination file"); |
| filesize += decodedSize; |
| op += decodedSize; |
| if (op==oend) op = outBuff; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(filesize>>20) ); |
| } |
| |
| /* prepare for next Block */ |
| toRead = ZSTDv03_nextSrcSizeToDecompress(dctx); |
| } |
| |
| /* release resources */ |
| free(outBuff); |
| free(dctx); |
| return filesize; |
| } |
| |
| |
| /*===== v0.4.x =====*/ |
| |
| typedef struct { |
| void* srcBuffer; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| void* dictBuffer; |
| size_t dictBufferSize; |
| ZBUFFv04_DCtx* dctx; |
| } dRessv04_t; |
| |
| static dRessv04_t FIOv04_createDResources(void) |
| { |
| dRessv04_t ress; |
| |
| /* init */ |
| ress.dctx = ZBUFFv04_createDCtx(); |
| if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context"); |
| ress.dictBuffer = NULL; ress.dictBufferSize=0; |
| |
| /* Allocate Memory */ |
| ress.srcBufferSize = ZBUFFv04_recommendedDInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZBUFFv04_recommendedDOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory"); |
| |
| return ress; |
| } |
| |
| static void FIOv04_freeDResources(dRessv04_t ress) |
| { |
| size_t errorCode = ZBUFFv04_freeDCtx(ress.dctx); |
| if (ZBUFFv04_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv04_getErrorName(errorCode)); |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| free(ress.dictBuffer); |
| } |
| |
| |
| unsigned long long FIOv04_decompressFrame(dRessv04_t ress, |
| FILE* foutput, FILE* finput) |
| { |
| U64 frameSize = 0; |
| size_t readSize = 4; |
| |
| MEM_writeLE32(ress.srcBuffer, ZSTDv04_magicNumber); |
| ZBUFFv04_decompressInit(ress.dctx); |
| ZBUFFv04_decompressWithDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize); |
| |
| while (1) { |
| /* Decode */ |
| size_t sizeCheck; |
| size_t inSize=readSize, decodedSize=ress.dstBufferSize; |
| size_t toRead = ZBUFFv04_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize); |
| if (ZBUFFv04_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv04_getErrorName(toRead)); |
| readSize -= inSize; |
| |
| /* Write block */ |
| sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); |
| frameSize += decodedSize; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) ); |
| |
| if (toRead == 0) break; |
| if (readSize) EXM_THROW(38, "Decoding error : should consume entire input"); |
| |
| /* Fill input buffer */ |
| if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block"); |
| readSize = fread(ress.srcBuffer, 1, toRead, finput); |
| if (readSize != toRead) EXM_THROW(35, "Read error"); |
| } |
| |
| return frameSize; |
| } |
| |
| |
| /*===== v0.5.x =====*/ |
| |
| typedef struct { |
| void* srcBuffer; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| const void* dictBuffer; |
| size_t dictBufferSize; |
| ZBUFFv05_DCtx* dctx; |
| } dRessv05_t; |
| |
| static dRessv05_t FIOv05_createDResources(void) |
| { |
| dRessv05_t ress; |
| |
| /* init */ |
| ress.dctx = ZBUFFv05_createDCtx(); |
| if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context"); |
| ress.dictBuffer = NULL; ress.dictBufferSize=0; |
| |
| /* Allocate Memory */ |
| ress.srcBufferSize = ZBUFFv05_recommendedDInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZBUFFv05_recommendedDOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory"); |
| |
| return ress; |
| } |
| |
| static void FIOv05_freeDResources(dRessv05_t ress) |
| { |
| size_t const errorCode = ZBUFFv05_freeDCtx(ress.dctx); |
| if (ZBUFFv05_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv05_getErrorName(errorCode)); |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| } |
| |
| |
| unsigned long long FIOv05_decompressFrame(dRessv05_t ress, |
| FILE* foutput, FILE* finput) |
| { |
| U64 frameSize = 0; |
| size_t readSize = 4; |
| |
| MEM_writeLE32(ress.srcBuffer, ZSTDv05_MAGICNUMBER); |
| ZBUFFv05_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize); |
| |
| while (1) { |
| /* Decode */ |
| size_t inSize=readSize, decodedSize=ress.dstBufferSize; |
| size_t toRead = ZBUFFv05_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize); |
| if (ZBUFFv05_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv05_getErrorName(toRead)); |
| readSize -= inSize; |
| |
| /* Write block */ |
| { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); } |
| frameSize += decodedSize; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) ); |
| |
| if (toRead == 0) break; |
| if (readSize) EXM_THROW(38, "Decoding error : should consume entire input"); |
| |
| /* Fill input buffer */ |
| if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block"); |
| readSize = fread(ress.srcBuffer, 1, toRead, finput); |
| if (readSize != toRead) EXM_THROW(35, "Read error"); |
| } |
| |
| return frameSize; |
| } |
| |
| |
| /*===== v0.6.x =====*/ |
| |
| typedef struct { |
| void* srcBuffer; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| const void* dictBuffer; |
| size_t dictBufferSize; |
| ZBUFFv06_DCtx* dctx; |
| } dRessv06_t; |
| |
| static dRessv06_t FIOv06_createDResources(void) |
| { |
| dRessv06_t ress; |
| |
| /* init */ |
| ress.dctx = ZBUFFv06_createDCtx(); |
| if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context"); |
| ress.dictBuffer = NULL; ress.dictBufferSize=0; |
| |
| /* Allocate Memory */ |
| ress.srcBufferSize = ZBUFFv06_recommendedDInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZBUFFv06_recommendedDOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory"); |
| |
| return ress; |
| } |
| |
| static void FIOv06_freeDResources(dRessv06_t ress) |
| { |
| size_t const errorCode = ZBUFFv06_freeDCtx(ress.dctx); |
| if (ZBUFFv06_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv06_getErrorName(errorCode)); |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| } |
| |
| |
| unsigned long long FIOv06_decompressFrame(dRessv06_t ress, |
| FILE* foutput, FILE* finput) |
| { |
| U64 frameSize = 0; |
| size_t readSize = 4; |
| |
| MEM_writeLE32(ress.srcBuffer, ZSTDv06_MAGICNUMBER); |
| ZBUFFv06_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize); |
| |
| while (1) { |
| /* Decode */ |
| size_t inSize=readSize, decodedSize=ress.dstBufferSize; |
| size_t toRead = ZBUFFv06_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize); |
| if (ZBUFFv06_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv06_getErrorName(toRead)); |
| readSize -= inSize; |
| |
| /* Write block */ |
| { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); } |
| frameSize += decodedSize; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) ); |
| |
| if (toRead == 0) break; |
| if (readSize) EXM_THROW(38, "Decoding error : should consume entire input"); |
| |
| /* Fill input buffer */ |
| if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block"); |
| readSize = fread(ress.srcBuffer, 1, toRead, finput); |
| if (readSize != toRead) EXM_THROW(35, "Read error"); |
| } |
| |
| return frameSize; |
| } |
| |
| |
| /*===== v0.7.x =====*/ |
| |
| typedef struct { |
| void* srcBuffer; |
| size_t srcBufferSize; |
| void* dstBuffer; |
| size_t dstBufferSize; |
| const void* dictBuffer; |
| size_t dictBufferSize; |
| ZBUFFv07_DCtx* dctx; |
| } dRessv07_t; |
| |
| static dRessv07_t FIOv07_createDResources(void) |
| { |
| dRessv07_t ress; |
| |
| /* init */ |
| ress.dctx = ZBUFFv07_createDCtx(); |
| if (ress.dctx==NULL) EXM_THROW(60, "Can't create ZBUFF decompression context"); |
| ress.dictBuffer = NULL; ress.dictBufferSize=0; |
| |
| /* Allocate Memory */ |
| ress.srcBufferSize = ZBUFFv07_recommendedDInSize(); |
| ress.srcBuffer = malloc(ress.srcBufferSize); |
| ress.dstBufferSize = ZBUFFv07_recommendedDOutSize(); |
| ress.dstBuffer = malloc(ress.dstBufferSize); |
| if (!ress.srcBuffer || !ress.dstBuffer) EXM_THROW(61, "Allocation error : not enough memory"); |
| |
| return ress; |
| } |
| |
| static void FIOv07_freeDResources(dRessv07_t ress) |
| { |
| size_t const errorCode = ZBUFFv07_freeDCtx(ress.dctx); |
| if (ZBUFFv07_isError(errorCode)) EXM_THROW(69, "Error : can't free ZBUFF context resource : %s", ZBUFFv07_getErrorName(errorCode)); |
| free(ress.srcBuffer); |
| free(ress.dstBuffer); |
| } |
| |
| |
| unsigned long long FIOv07_decompressFrame(dRessv07_t ress, |
| FILE* foutput, FILE* finput) |
| { |
| U64 frameSize = 0; |
| size_t readSize = 4; |
| |
| MEM_writeLE32(ress.srcBuffer, ZSTDv07_MAGICNUMBER); |
| ZBUFFv07_decompressInitDictionary(ress.dctx, ress.dictBuffer, ress.dictBufferSize); |
| |
| while (1) { |
| /* Decode */ |
| size_t inSize=readSize, decodedSize=ress.dstBufferSize; |
| size_t toRead = ZBUFFv07_decompressContinue(ress.dctx, ress.dstBuffer, &decodedSize, ress.srcBuffer, &inSize); |
| if (ZBUFFv07_isError(toRead)) EXM_THROW(36, "Decoding error : %s", ZBUFFv07_getErrorName(toRead)); |
| readSize -= inSize; |
| |
| /* Write block */ |
| { size_t const sizeCheck = fwrite(ress.dstBuffer, 1, decodedSize, foutput); |
| if (sizeCheck != decodedSize) EXM_THROW(37, "Write error : unable to write data block to destination file"); } |
| frameSize += decodedSize; |
| DISPLAYUPDATE(2, "\rDecoded : %u MB... ", (U32)(frameSize>>20) ); |
| |
| if (toRead == 0) break; |
| if (readSize) EXM_THROW(38, "Decoding error : should consume entire input"); |
| |
| /* Fill input buffer */ |
| if (toRead > ress.srcBufferSize) EXM_THROW(34, "too large block"); |
| readSize = fread(ress.srcBuffer, 1, toRead, finput); |
| if (readSize != toRead) EXM_THROW(35, "Read error"); |
| } |
| |
| return frameSize; |
| } |
| |
| |
| /*===== General legacy dispatcher =====*/ |
| |
| unsigned long long FIO_decompressLegacyFrame(FILE* foutput, FILE* finput, |
| const void* dictBuffer, size_t dictSize, |
| U32 magicNumberLE) |
| { |
| switch(magicNumberLE) |
| { |
| case ZSTDv01_magicNumberLE : |
| return FIOv01_decompressFrame(foutput, finput); |
| case ZSTDv02_magicNumber : |
| return FIOv02_decompressFrame(foutput, finput); |
| case ZSTDv03_magicNumber : |
| return FIOv03_decompressFrame(foutput, finput); |
| case ZSTDv04_magicNumber : |
| { dRessv04_t r = FIOv04_createDResources(); |
| unsigned long long const s = FIOv04_decompressFrame(r, foutput, finput); |
| FIOv04_freeDResources(r); |
| return s; |
| } |
| case ZSTDv05_MAGICNUMBER : |
| { dRessv05_t r = FIOv05_createDResources(); |
| r.dictBuffer = dictBuffer; |
| r.dictBufferSize = dictSize; |
| { unsigned long long const s = FIOv05_decompressFrame(r, foutput, finput); |
| FIOv05_freeDResources(r); |
| return s; |
| } } |
| case ZSTDv06_MAGICNUMBER : |
| { dRessv06_t r = FIOv06_createDResources(); |
| r.dictBuffer = dictBuffer; |
| r.dictBufferSize = dictSize; |
| { unsigned long long const s = FIOv06_decompressFrame(r, foutput, finput); |
| FIOv06_freeDResources(r); |
| return s; |
| } } |
| case ZSTDv07_MAGICNUMBER : |
| { dRessv07_t r = FIOv07_createDResources(); |
| r.dictBuffer = dictBuffer; |
| r.dictBufferSize = dictSize; |
| { unsigned long long const s = FIOv07_decompressFrame(r, foutput, finput); |
| FIOv07_freeDResources(r); |
| return s; |
| } } |
| default : |
| return ERROR(prefix_unknown); |
| } |
| } |