From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Fri, 19 Jul 2024 16:37:58 +0400 Subject: Deleted vendor folder --- vendor/zune-inflate/src/constants.rs | 156 ----------------------------------- 1 file changed, 156 deletions(-) delete mode 100644 vendor/zune-inflate/src/constants.rs (limited to 'vendor/zune-inflate/src/constants.rs') diff --git a/vendor/zune-inflate/src/constants.rs b/vendor/zune-inflate/src/constants.rs deleted file mode 100644 index 260fe5b..0000000 --- a/vendor/zune-inflate/src/constants.rs +++ /dev/null @@ -1,156 +0,0 @@ -use crate::utils::const_min_usize; - -/// 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. -pub const DEFLATE_NUM_PRECODE_SYMS: usize = 19; -pub const DEFLATE_NUM_LITLEN_SYMS: usize = 288; -pub const DEFLATE_NUM_OFFSET_SYMS: usize = 32; - -/// Maximum possible overrun when decoding codeword lengths -pub const DELFATE_MAX_LENS_OVERRUN: usize = 137; - -/// Order which precode lengths are stored -pub static DEFLATE_PRECODE_LENS_PERMUTATION: [u8; DEFLATE_NUM_PRECODE_SYMS] = [ - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 -]; - -pub const PRECODE_ENOUGH: usize = 128; - -/// Maximum codeword length across all codes. -pub const DEFLATE_MAX_CODEWORD_LENGTH: usize = 15; - -pub const DEFLATE_MAX_OFFSET_CODEWORD_LENGTH: usize = 15; -pub const DEFLATE_MAX_LITLEN_CODEWORD_LENGTH: usize = 15; - -pub const PRECODE_TABLE_BITS: usize = 7; - -pub const LITLEN_TABLE_BITS: usize = 11; -pub const LITLEN_ENOUGH: usize = 2342; -/// Maximum bits found in the lookup table for offsets -/// offsets larger than this require a lookup into a sub-table -pub const OFFSET_TABLEBITS: usize = 8; -/// Note, default libdeflate value is 402, but with 512, -/// we can remove a branch check by simply doing & 511, and I'll take that. -pub const OFFSET_ENOUGH: usize = 512; -/// Maximum number of symbols across all codes -pub const DEFLATE_MAX_NUM_SYMS: usize = 288; - -///Maximum codeword length in bits for each precode -pub const DEFLATE_MAX_PRE_CODEWORD_LEN: u8 = 7; - -/// Format for precode decode table entries, Bits not explicitly contain zeroes -/// -/// 20-16: presym -/// 10-8 Codeword length(not used) -/// Bit 2-0 Codeword length -/// -/// It never has sub-tables since we use PRECODE_TABLEBITS == MAX_PRECODEWORD_LENGTH -/// -/// PRECODE_DECODE_RESULTS contains static parts of the entry for each symbol, -/// make_decode_table_entry produces the final results -pub static PRECODE_DECODE_RESULTS: [u32; 19] = make_precode_static_table(); - -const fn make_precode_static_table() -> [u32; 19] -{ - let mut table: [u32; 19] = [0; 19]; - let mut i = 0; - - while i < 19 - { - table[i] = (i as u32) << 16; - i += 1; - } - - table -} - -/// Presence of a literal entry -pub const HUFFDEC_LITERAL: u32 = 0x80000000; -/// Presence of HUFFDEC_SUITABLE_POINTER or HUFFDEC_END_OF_BLOCK -pub const HUFFDEC_EXCEPTIONAL: u32 = 0x00008000; -/// Pointer entry in the litlen or offset decode table -pub const HUFFDEC_SUITABLE_POINTER: u32 = 0x00004000; -/// End of block entry in litlen decode table -pub const HUFFDEC_END_OF_BLOCK: u32 = 0x00002000; - -#[rustfmt::skip] -#[allow(clippy::zero_prefixed_literal)] -const fn construct_litlen_decode_table() -> [u32; 288] -{ - let mut results: [u32; 288] = [0; 288]; - let mut i = 0; - - while i < 256 - { - results[i] = ((i as u32) << 16) | HUFFDEC_LITERAL; - i += 1; - } - - results[i] = HUFFDEC_EXCEPTIONAL | HUFFDEC_END_OF_BLOCK; - i += 1; - - - let base_and_bits_tables = [ - (003, 0), (004, 0), (005, 0), (006, 0), - (007, 0), (008, 0), (009, 0), (010, 0), - (011, 1), (013, 1), (015, 1), (017, 1), - (019, 2), (023, 2), (027, 2), (031, 2), - (035, 3), (043, 3), (051, 3), (059, 3), - (067, 4), (083, 4), (099, 4), (115, 4), - (131, 5), (163, 5), (195, 5), (227, 5), - (258, 0), (258, 0), (258, 0), - ]; - let mut j = 0; - - while i < 288 - { - let (length_base, extra_bits) = base_and_bits_tables[j]; - results[i] = (length_base << 16) | extra_bits; - - i += 1; - j += 1; - } - - results -} - -const fn entry(base: u32, extra: u32) -> u32 -{ - base << 16 | extra -} - -#[rustfmt::skip] -#[allow(clippy::zero_prefixed_literal)] // the things we do for alignment -pub static OFFSET_DECODE_RESULTS: [u32; 32] = [ - entry(00001, 00), entry(00002, 00), entry(00003, 00), entry(00004, 00), - entry(00005, 01), entry(00007, 01), entry(00009, 02), entry(00013, 02), - entry(00017, 03), entry(00025, 03), entry(00033, 04), entry(00049, 04), - entry(00065, 05), entry(00097, 05), entry(00129, 06), entry(00193, 06), - entry(00257, 07), entry(00385, 07), entry(00513, 08), entry(00769, 08), - entry(01025, 09), entry(01537, 09), entry(02049, 10), entry(03073, 10), - entry(04097, 11), entry(06145, 11), entry(08193, 12), entry(12289, 12), - entry(16385, 13), entry(24577, 13), entry(24577, 13), entry(24577, 13), -]; - -pub static LITLEN_DECODE_RESULTS: [u32; 288] = construct_litlen_decode_table(); - -pub const DEFLATE_BLOCKTYPE_DYNAMIC_HUFFMAN: u64 = 2; - -pub const DEFLATE_BLOCKTYPE_UNCOMPRESSED: u64 = 0; -pub const DEFLATE_BLOCKTYPE_RESERVED: u64 = 3; - -pub const DEFLATE_BLOCKTYPE_STATIC: u64 = 1; - -pub const LITLEN_DECODE_BITS: usize = - const_min_usize(DEFLATE_MAX_LITLEN_CODEWORD_LENGTH, LITLEN_TABLE_BITS); - -/// Maximum length of a deflate match -pub const DEFLATE_MAX_MATCH_LEN: usize = 258; - -/// Number of bytes copied per every loop -pub const FASTCOPY_BYTES: usize = 16; - -/// Worst case maximum number of output bytes writtern during each iteration of the -/// fastloop. -pub const FASTLOOP_MAX_BYTES_WRITTEN: usize = 6 + DEFLATE_MAX_MATCH_LEN + (2 * FASTCOPY_BYTES); -- cgit v1.2.3