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Diffstat (limited to 'util/compress/libdeflate/lib/deflate_constants.h')
| -rw-r--r-- | util/compress/libdeflate/lib/deflate_constants.h | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/util/compress/libdeflate/lib/deflate_constants.h b/util/compress/libdeflate/lib/deflate_constants.h deleted file mode 100644 index a10b57dec..000000000 --- a/util/compress/libdeflate/lib/deflate_constants.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * deflate_constants.h - constants for the DEFLATE compression format - */ - -#ifndef LIB_DEFLATE_CONSTANTS_H -#define LIB_DEFLATE_CONSTANTS_H - -/* Valid block types */ -#define DEFLATE_BLOCKTYPE_UNCOMPRESSED 0 -#define DEFLATE_BLOCKTYPE_STATIC_HUFFMAN 1 -#define DEFLATE_BLOCKTYPE_DYNAMIC_HUFFMAN 2 - -/* Minimum and maximum supported match lengths (in bytes) */ -#define DEFLATE_MIN_MATCH_LEN 3 -#define DEFLATE_MAX_MATCH_LEN 258 - -/* Minimum and maximum supported match offsets (in bytes) */ -#define DEFLATE_MIN_MATCH_OFFSET 1 -#define DEFLATE_MAX_MATCH_OFFSET 32768 - -#define DEFLATE_MAX_WINDOW_SIZE 32768 - -/* Number of symbols in each Huffman code. Note: for the literal/length - * and offset codes, these are actually the maximum values; a given block - * might use fewer symbols. */ -#define DEFLATE_NUM_PRECODE_SYMS 19 -#define DEFLATE_NUM_LITLEN_SYMS 288 -#define DEFLATE_NUM_OFFSET_SYMS 32 - -/* The maximum number of symbols across all codes */ -#define DEFLATE_MAX_NUM_SYMS 288 - -/* Division of symbols in the literal/length code */ -#define DEFLATE_NUM_LITERALS 256 -#define DEFLATE_END_OF_BLOCK 256 -#define DEFLATE_NUM_LEN_SYMS 31 - -/* Maximum codeword length, in bits, within each Huffman code */ -#define DEFLATE_MAX_PRE_CODEWORD_LEN 7 -#define DEFLATE_MAX_LITLEN_CODEWORD_LEN 15 -#define DEFLATE_MAX_OFFSET_CODEWORD_LEN 15 - -/* The maximum codeword length across all codes */ -#define DEFLATE_MAX_CODEWORD_LEN 15 - -/* Maximum possible overrun when decoding codeword lengths */ -#define DEFLATE_MAX_LENS_OVERRUN 137 - -/* - * Maximum number of extra bits that may be required to represent a match - * length or offset. - * - * TODO: are we going to have full DEFLATE64 support? If so, up to 16 - * length bits must be supported. - */ -#define DEFLATE_MAX_EXTRA_LENGTH_BITS 5 -#define DEFLATE_MAX_EXTRA_OFFSET_BITS 14 - -/* The maximum number of bits in which a match can be represented. This - * is the absolute worst case, which assumes the longest possible Huffman - * codewords and the maximum numbers of extra bits. */ -#define DEFLATE_MAX_MATCH_BITS \ - (DEFLATE_MAX_LITLEN_CODEWORD_LEN + DEFLATE_MAX_EXTRA_LENGTH_BITS + \ - DEFLATE_MAX_OFFSET_CODEWORD_LEN + DEFLATE_MAX_EXTRA_OFFSET_BITS) - -#endif /* LIB_DEFLATE_CONSTANTS_H */ |