45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/* Copyright 2015 Google Inc. All Rights Reserved.
|
|
|
|
Distributed under MIT license.
|
|
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
|
|
*/
|
|
|
|
/* Hash table on the 4-byte prefixes of static dictionary words. */
|
|
|
|
#ifndef BROTLI_ENC_DICTIONARY_HASH_H_
|
|
#define BROTLI_ENC_DICTIONARY_HASH_H_
|
|
|
|
#include "../common/platform.h"
|
|
#include "../common/static_init.h"
|
|
|
|
#if (BROTLI_STATIC_INIT != BROTLI_STATIC_INIT_NONE)
|
|
#include "../common/dictionary.h"
|
|
#endif
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Bucket is (Hash14 * 2 + length_lt_8); in other words we reserve 2 buckets
|
|
for each hash - one for shorter words and one for longer words. */
|
|
#define BROTLI_ENC_NUM_HASH_BUCKETS 32768
|
|
|
|
#if (BROTLI_STATIC_INIT != BROTLI_STATIC_INIT_NONE)
|
|
BROTLI_BOOL BROTLI_INTERNAL BrotliEncoderInitDictionaryHash(
|
|
const BrotliDictionary* dictionary, uint16_t* words, uint8_t* lengths);
|
|
BROTLI_INTERNAL extern BROTLI_MODEL("small") uint16_t
|
|
kStaticDictionaryHashWords[BROTLI_ENC_NUM_HASH_BUCKETS];
|
|
BROTLI_INTERNAL extern BROTLI_MODEL("small") uint8_t
|
|
kStaticDictionaryHashLengths[BROTLI_ENC_NUM_HASH_BUCKETS];
|
|
#else
|
|
BROTLI_INTERNAL extern const BROTLI_MODEL("small") uint16_t
|
|
kStaticDictionaryHashWords[BROTLI_ENC_NUM_HASH_BUCKETS];
|
|
BROTLI_INTERNAL extern const BROTLI_MODEL("small") uint8_t
|
|
kStaticDictionaryHashLengths[BROTLI_ENC_NUM_HASH_BUCKETS];
|
|
#endif
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* BROTLI_ENC_DICTIONARY_HASH_H_ */
|