40 lines
1.6 KiB
C++
40 lines
1.6 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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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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#ifndef ZSTD_COMPRESS_LITERALS_H
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#define ZSTD_COMPRESS_LITERALS_H
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#include "zstd_compress_internal.h" /* ZSTD_hufCTables_t, ZSTD_minGain() */
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size_t ZSTD_noCompressLiterals (void* dst, size_t dstCapacity, const void* src, size_t srcSize);
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/* ZSTD_compressRleLiteralsBlock() :
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* Conditions :
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* - All bytes in @src are identical
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* - dstCapacity >= 4 */
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size_t ZSTD_compressRleLiteralsBlock (void* dst, size_t dstCapacity, const void* src, size_t srcSize);
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/* ZSTD_compressLiterals():
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* @entropyWorkspace: must be aligned on 4-bytes boundaries
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* @entropyWorkspaceSize : must be >= HUF_WORKSPACE_SIZE
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* @suspectUncompressible: sampling checks, to potentially skip huffman coding
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*/
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size_t ZSTD_compressLiterals (void* dst, size_t dstCapacity,
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const void* src, size_t srcSize,
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void* entropyWorkspace, size_t entropyWorkspaceSize,
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const ZSTD_hufCTables_t* prevHuf,
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ZSTD_hufCTables_t* nextHuf,
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ZSTD_strategy strategy, int disableLiteralCompression,
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int suspectUncompressible,
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int bmi2);
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#endif /* ZSTD_COMPRESS_LITERALS_H */
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