1 /* Copyright 2013 Google Inc. All Rights Reserved. 2 3 Distributed under MIT license. 4 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 5 */ 6 7 /* Class to model the static dictionary. */ 8 9 #ifndef BROTLI_ENC_STATIC_DICT_H_ 10 #define BROTLI_ENC_STATIC_DICT_H_ 11 12 #include "../common/dictionary.h" 13 #include "../common/platform.h" 14 #include <brotli/types.h> 15 #include "./encoder_dict.h" 16 17 #if defined(__cplusplus) || defined(c_plusplus) 18 extern "C" { 19 #endif 20 21 #define BROTLI_MAX_STATIC_DICTIONARY_MATCH_LEN 37 22 static const uint32_t kInvalidMatch = 0xFFFFFFF; 23 24 /* Matches data against static dictionary words, and for each length l, 25 for which a match is found, updates matches[l] to be the minimum possible 26 (distance << 5) + len_code. 27 Returns 1 if matches have been found, otherwise 0. 28 Prerequisites: 29 matches array is at least BROTLI_MAX_STATIC_DICTIONARY_MATCH_LEN + 1 long 30 all elements are initialized to kInvalidMatch */ 31 BROTLI_INTERNAL BROTLI_BOOL BrotliFindAllStaticDictionaryMatches( 32 const BrotliEncoderDictionary* dictionary, 33 const uint8_t* data, size_t min_length, size_t max_length, 34 uint32_t* matches); 35 36 #if defined(__cplusplus) || defined(c_plusplus) 37 } /* extern "C" */ 38 #endif 39 40 #endif /* BROTLI_ENC_STATIC_DICT_H_ */ 41
