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godotengine
GitHub Repository: godotengine/godot
 Path: blob/master/thirdparty/brotli/common/shared_dictionary_internal.h
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/* Copyright 2017 Google Inc. All Rights Reserved.

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   Distributed under MIT license.

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   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT

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*/

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/* (Transparent) Shared Dictionary definition. */

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#ifndef BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_

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#define BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_

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#include <brotli/shared_dictionary.h>

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#include <brotli/types.h>

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#include "dictionary.h"

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#include "transform.h"

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#if defined(__cplusplus) || defined(c_plusplus)

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extern "C" {

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#endif

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struct BrotliSharedDictionaryStruct {

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  /* LZ77 prefixes (compound dictionary). */

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  uint32_t num_prefix;  /* max SHARED_BROTLI_MAX_COMPOUND_DICTS */

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  size_t prefix_size[SHARED_BROTLI_MAX_COMPOUND_DICTS];

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  const uint8_t* prefix[SHARED_BROTLI_MAX_COMPOUND_DICTS];

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  /* If set, the context map is used to select word and transform list from 64

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     contexts, if not set, the context map is not used and only words[0] and

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     transforms[0] are to be used. */

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  BROTLI_BOOL context_based;

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  uint8_t context_map[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];

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  /* Amount of word_list+transform_list combinations. */

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  uint8_t num_dictionaries;

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  /* Must use num_dictionaries values. */

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  const BrotliDictionary* words[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];

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  /* Must use num_dictionaries values. */

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  const BrotliTransforms* transforms[SHARED_BROTLI_NUM_DICTIONARY_CONTEXTS];

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  /* Amount of custom word lists. May be 0 if only Brotli's built-in is used */

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  uint8_t num_word_lists;

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  /* Contents of the custom words lists. Must be NULL if num_word_lists is 0. */

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  BrotliDictionary* words_instances;

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  /* Amount of custom transform lists. May be 0 if only Brotli's built-in is

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     used */

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  uint8_t num_transform_lists;

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  /* Contents of the custom transform lists. Must be NULL if num_transform_lists

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     is 0. */

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  BrotliTransforms* transforms_instances;

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  /* Concatenated prefix_suffix_maps of the custom transform lists. Must be NULL

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     if num_transform_lists is 0. */

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  uint16_t* prefix_suffix_maps;

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  /* Memory management */

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  brotli_alloc_func alloc_func;

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  brotli_free_func free_func;

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  void* memory_manager_opaque;

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};

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typedef struct BrotliSharedDictionaryStruct BrotliSharedDictionaryInternal;

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#define BrotliSharedDictionary BrotliSharedDictionaryInternal

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#if defined(__cplusplus) || defined(c_plusplus)

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}  /* extern "C" */

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#endif

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#endif  /* BROTLI_COMMON_SHARED_DICTIONARY_INTERNAL_H_ */

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