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79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
2 years ago
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#ifndef USE_EXTERNAL_ZSTD
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/*
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* Copyright (c) Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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/* *************************************
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* Dependencies
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***************************************/
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#define ZBUFF_STATIC_LINKING_ONLY
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#include "zbuff.h"
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ZBUFF_DCtx* ZBUFF_createDCtx(void)
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{
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return ZSTD_createDStream();
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}
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ZBUFF_DCtx* ZBUFF_createDCtx_advanced(ZSTD_customMem customMem)
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{
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return ZSTD_createDStream_advanced(customMem);
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}
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size_t ZBUFF_freeDCtx(ZBUFF_DCtx* zbd)
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{
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return ZSTD_freeDStream(zbd);
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}
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/* *** Initialization *** */
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size_t ZBUFF_decompressInitDictionary(ZBUFF_DCtx* zbd, const void* dict, size_t dictSize)
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{
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return ZSTD_initDStream_usingDict(zbd, dict, dictSize);
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}
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size_t ZBUFF_decompressInit(ZBUFF_DCtx* zbd)
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{
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return ZSTD_initDStream(zbd);
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}
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/* *** Decompression *** */
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size_t ZBUFF_decompressContinue(ZBUFF_DCtx* zbd,
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void* dst, size_t* dstCapacityPtr,
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const void* src, size_t* srcSizePtr)
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{
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ZSTD_outBuffer outBuff;
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ZSTD_inBuffer inBuff;
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size_t result;
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outBuff.dst = dst;
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outBuff.pos = 0;
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outBuff.size = *dstCapacityPtr;
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inBuff.src = src;
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inBuff.pos = 0;
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inBuff.size = *srcSizePtr;
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result = ZSTD_decompressStream(zbd, &outBuff, &inBuff);
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*dstCapacityPtr = outBuff.pos;
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*srcSizePtr = inBuff.pos;
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return result;
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}
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/* *************************************
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* Tool functions
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***************************************/
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size_t ZBUFF_recommendedDInSize(void) { return ZSTD_DStreamInSize(); }
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size_t ZBUFF_recommendedDOutSize(void) { return ZSTD_DStreamOutSize(); }
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#endif /* USE_EXTERNAL_ZSTD */
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