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| author | Eugene Kliuchnikov <eustas.ru@gmail.com> | 2020-08-26 12:32:27 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-26 12:32:27 +0200 |
| commit | 223d80cfbec8fd346e32906c732c8ede21f0cea6 (patch) | |
| tree | de47f73fd7323e327cd9c9f20100da8ed4e13f54 /c/common/constants.h | |
| parent | 0c5603e07bed1d5fbb45e38f9bdf0e4560fde3f0 (diff) | |
| download | brotli-223d80cfbec8fd346e32906c732c8ede21f0cea6.tar.gz | |
Update (#826)
* IMPORTANT: decoder: fix potential overflow when input chunk is >2GiB
* simplify max Huffman table size calculation
* eliminate symbol duplicates (static arrays in .h files)
* minor combing in research/ code
Diffstat (limited to 'c/common/constants.h')
| -rw-r--r-- | c/common/constants.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/c/common/constants.h b/c/common/constants.h index f6e44dc..e848195 100644 --- a/c/common/constants.h +++ b/c/common/constants.h @@ -13,6 +13,7 @@ #define BROTLI_COMMON_CONSTANTS_H_ #include "./platform.h" +#include <brotli/port.h> #include <brotli/types.h> /* Specification: 7.3. Encoding of the context map */ @@ -84,6 +85,10 @@ (see kLargeWindowDistanceCodeLimits). */ #define BROTLI_MAX_ALLOWED_DISTANCE 0x7FFFFFFC + +/* Specification: 4. Encoding of Literal Insertion Lengths and Copy Lengths */ +#define BROTLI_NUM_INS_COPY_CODES 24 + /* 7.1. Context modes and context ID lookup for literals */ /* "context IDs for literals are in the range of 0..63" */ #define BROTLI_LITERAL_CONTEXT_BITS 6 @@ -181,4 +186,15 @@ BROTLI_UNUSED_FUNCTION BrotliDistanceCodeLimit BrotliCalculateDistanceCodeLimit( } } +/* Represents the range of values belonging to a prefix code: + [offset, offset + 2^nbits) */ +typedef struct { + uint16_t offset; + uint8_t nbits; +} BrotliPrefixCodeRange; + +/* "Soft-private", it is exported, but not "advertised" as API. */ +BROTLI_COMMON_API extern const BrotliPrefixCodeRange + _kBrotliPrefixCodeRanges[BROTLI_NUM_BLOCK_LEN_SYMBOLS]; + #endif /* BROTLI_COMMON_CONSTANTS_H_ */ |