kc3-lang/brotli/c/common/shared_dictionary_internal.h

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• Hash : a8f5813b
  Author :
  Date : 2022-11-17T13:03:09
  

  Update
  
  Documentation:
    - add note that brotli is a "stream" format, not an archive-like
    - regenerate .1 with Pandoc
  Build:
    - drop legacy "BROTLI_BUILD_PORTABLE" option
    - drop "BROTLI_SANITIZED" definition
  Code:
    - c: comb includes
    - c/enc: extract encoder state into separate header
    - c/enc: drop designated q10 codepath
    - c/enc: dealing better with flushing of empty stream
    - fix MSVC compilation
  API:
    - py: use library version instead of one in version.h
    - c: add plugable API to report consumed input / produced output
    - c/java: support "lean" prepared dictionaries (without copy of source)
  

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• c/common/shared_dictionary_internal.h

• /* Copyright 2017 Google Inc. All Rights Reserved.
  
     Distributed under MIT license.
     See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
  */
  
  /* (Transparent) Shared Dictionary definition. */
  
  #ifndef BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_
  #define BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_
  
  #include <brotli/shared_dictionary.h>
  #include <brotli/types.h>
  
  #include "dictionary.h"
  #include "transform.h"
  
  #if defined(__cplusplus) || defined(c_plusplus)
  extern "C" {
  #endif
  
  struct BrotliSharedDictionaryStruct {
    /* LZ77 prefixes (compound dictionary). */
    uint32_t num_prefix;  /* max SHARED_BROTLI_MAX_COMPOUND_DICTS */
    size_t prefix_size[SHARED_BROTLI_MAX_COMPOUND_DICTS];
    const uint8_t* prefix[SHARED_BROTLI_MAX_COMPOUND_DICTS];
  
    /* If set, the context map is used to select word and transform list from 64
       contexts, if not set, the context map is not used and only words[0] and
       transforms[0] are to be used. */
    BROTLI_BOOL context_based;
  
    uint8_t context_map[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];
  
    /* Amount of word_list+transform_list combinations. */
    uint8_t num_dictionaries;
  
    /* Must use num_dictionaries values. */
    const BrotliDictionary* words[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];
  
    /* Must use num_dictionaries values. */
    const BrotliTransforms* transforms[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];
  
    /* Amount of custom word lists. May be 0 if only Brotli's built-in is used */
    uint8_t num_word_lists;
  
    /* Contents of the custom words lists. Must be NULL if num_word_lists is 0. */
    BrotliDictionary* words_instances;
  
    /* Amount of custom transform lists. May be 0 if only Brotli's built-in is
       used */
    uint8_t num_transform_lists;
  
    /* Contents of the custom transform lists. Must be NULL if num_transform_lists
       is 0. */
    BrotliTransforms* transforms_instances;
  
    /* Concatenated prefix_suffix_maps of the custom transform lists. Must be NULL
       if num_transform_lists is 0. */
    uint16_t* prefix_suffix_maps;
  
    /* Memory management */
    brotli_alloc_func alloc_func;
    brotli_free_func free_func;
    void* memory_manager_opaque;
  };
  
  typedef struct BrotliSharedDictionaryStruct BrotliSharedDictionaryInternal;
  #define BrotliSharedDictionary BrotliSharedDictionaryInternal
  
  #if defined(__cplusplus) || defined(c_plusplus)
  }  /* extern "C" */
  #endif
  
  #endif  /* BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_ */
  

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