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1/*2 * Copyright (c) Yann Collet, Facebook, Inc.3 * All rights reserved.4 *5 * This source code is licensed under both the BSD-style license (found in the6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found7 * in the COPYING file in the root directory of this source tree).8 * You may select, at your option, one of the above-listed licenses.9 */10 11#ifndef ZSTD_COMPRESS_SEQUENCES_H12#define ZSTD_COMPRESS_SEQUENCES_H13 14#include "../common/fse.h" /* FSE_repeat, FSE_CTable */15#include "../common/zstd_internal.h" /* symbolEncodingType_e, ZSTD_strategy */16 17typedef enum {18 ZSTD_defaultDisallowed = 0,19 ZSTD_defaultAllowed = 120} ZSTD_defaultPolicy_e;21 22symbolEncodingType_e23ZSTD_selectEncodingType(24 FSE_repeat* repeatMode, unsigned const* count, unsigned const max,25 size_t const mostFrequent, size_t nbSeq, unsigned const FSELog,26 FSE_CTable const* prevCTable,27 short const* defaultNorm, U32 defaultNormLog,28 ZSTD_defaultPolicy_e const isDefaultAllowed,29 ZSTD_strategy const strategy);30 31size_t32ZSTD_buildCTable(void* dst, size_t dstCapacity,33 FSE_CTable* nextCTable, U32 FSELog, symbolEncodingType_e type,34 unsigned* count, U32 max,35 const BYTE* codeTable, size_t nbSeq,36 const S16* defaultNorm, U32 defaultNormLog, U32 defaultMax,37 const FSE_CTable* prevCTable, size_t prevCTableSize,38 void* entropyWorkspace, size_t entropyWorkspaceSize);39 40size_t ZSTD_encodeSequences(41 void* dst, size_t dstCapacity,42 FSE_CTable const* CTable_MatchLength, BYTE const* mlCodeTable,43 FSE_CTable const* CTable_OffsetBits, BYTE const* ofCodeTable,44 FSE_CTable const* CTable_LitLength, BYTE const* llCodeTable,45 seqDef const* sequences, size_t nbSeq, int longOffsets, int bmi2);46 47size_t ZSTD_fseBitCost(48 FSE_CTable const* ctable,49 unsigned const* count,50 unsigned const max);51 52size_t ZSTD_crossEntropyCost(short const* norm, unsigned accuracyLog,53 unsigned const* count, unsigned const max);54#endif /* ZSTD_COMPRESS_SEQUENCES_H */55