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Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)
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#include "deflate.h"Go to the source code of this file.
Data Structures | |
| struct | config_s |
Macros | |
| #define | NIL 0 |
| #define | TOO_FAR 4096 |
| #define | RANK(f) (((f) * 2) - ((f) > 4 ? 9 : 0)) |
| #define | UPDATE_HASH(s, h, c) (h = (((h) << s->hash_shift) ^ (c)) & s->hash_mask) |
| #define | INSERT_STRING(s, str, match_head) |
| #define | CLEAR_HASH(s) |
| #define | HCRC_UPDATE(beg) |
| #define | check_match(s, start, match, length) |
| #define | FLUSH_BLOCK_ONLY(s, last) |
| #define | FLUSH_BLOCK(s, last) |
| #define | MAX_STORED 65535 |
| #define | MIN(a, b) ((a) > (b) ? (b) : (a)) |
Typedefs | |
| typedef block_state compress_func | OF((deflate_state *s, int flush)) |
| Addition for GDAL : START. More... | |
| typedef struct config_s | config |
Enumerations | |
| enum | block_state { need_more , block_done , finish_started , finish_done } |
Variables | |
| const char | deflate_copyright [] |
| const config | configuration_table [10] |
| #define CLEAR_HASH | ( | s | ) |
| #define FLUSH_BLOCK_ONLY | ( | s, | |
| last | |||
| ) |
| #define HCRC_UPDATE | ( | beg | ) |
| #define INSERT_STRING | ( | s, | |
| str, | |||
| match_head | |||
| ) |
| #define UPDATE_HASH | ( | s, | |
| h, | |||
| c | |||
| ) | (h = (((h) << s->hash_shift) ^ (c)) & s->hash_mask) |
| enum block_state |
Definition at line 815 of file deflate.c.
References _tr_align(), _tr_stored_block(), adler32(), block_done, internal_state::block_start, BUSY_STATE, CLEAR_HASH, COMMENT_STATE, configuration_table, crc32(), deflate_huff(), deflate_rle(), deflate_stored(), deflateStateCheck(), ERR_RETURN, EXTRA_STATE, finish_done, finish_started, FINISH_STATE, flush_pending(), config_s::func, internal_state::gzhead, internal_state::gzindex, GZIP_STATE, HCRC_STATE, HCRC_UPDATE, INIT_STATE, internal_state::insert, L, internal_state::last_flush, internal_state::level, internal_state::lookahead, NAME_STATE, need_more, OS_CODE, internal_state::pending, internal_state::pending_buf, internal_state::pending_buf_size, PRESET_DICT, put_byte, putShortMSB(), RANK, internal_state::status, internal_state::strategy, internal_state::strm, internal_state::strstart, internal_state::w_bits, internal_state::wrap, Z_BLOCK, Z_BUF_ERROR, Z_DEFLATED, Z_FINISH, Z_FULL_FLUSH, Z_HUFFMAN_ONLY, Z_NO_FLUSH, Z_NULL, Z_OK, Z_PARTIAL_FLUSH, Z_RLE, Z_STREAM_END, Z_STREAM_ERROR, and zmemcpy.
Referenced by compress2(), def(), deflateParams(), gz_comp(), gztack(), log_compress(), main(), partcompress(), recompress(), zipCloseFileInZipRaw64(), and zipWriteInFileInZip().
| block_state deflate_fast | ( | deflate_state * | s, |
| int | flush | ||
| ) |
Definition at line 1877 of file deflate.c.
References _tr_tally_dist, _tr_tally_lit, block_done, check_match, fill_window(), finish_done, FLUSH_BLOCK, INSERT_STRING, longest_match(), MAX_DIST, MIN_LOOKAHEAD, MIN_MATCH, need_more, NIL, Tracevv, UPDATE_HASH, Z_FINISH, and Z_NO_FLUSH.
| block_state deflate_huff | ( | deflate_state * | s, |
| int | flush | ||
| ) |
Definition at line 2184 of file deflate.c.
References _tr_tally_lit, block_done, fill_window(), finish_done, FLUSH_BLOCK, need_more, Tracevv, Z_FINISH, and Z_NO_FLUSH.
Referenced by deflate().
| block_state deflate_rle | ( | deflate_state * | s, |
| int | flush | ||
| ) |
Definition at line 2110 of file deflate.c.
References _tr_tally_dist, _tr_tally_lit, Assert, block_done, check_match, fill_window(), finish_done, FLUSH_BLOCK, MAX_MATCH, MIN_MATCH, need_more, internal_state::prev, Tracevv, internal_state::window, Z_FINISH, and Z_NO_FLUSH.
Referenced by deflate().
| block_state deflate_slow | ( | deflate_state * | s, |
| int | flush | ||
| ) |
Definition at line 1979 of file deflate.c.
References _tr_tally_dist, _tr_tally_lit, Assert, block_done, check_match, fill_window(), finish_done, FLUSH_BLOCK, FLUSH_BLOCK_ONLY, INSERT_STRING, longest_match(), MAX_DIST, MIN_LOOKAHEAD, MIN_MATCH, need_more, NIL, TOO_FAR, Tracevv, Z_FILTERED, Z_FINISH, and Z_NO_FLUSH.
| block_state deflate_stored | ( | deflate_state * | s, |
| int | flush | ||
| ) |
Definition at line 1690 of file deflate.c.
References _tr_stored_block(), block_done, finish_done, finish_started, flush_pending(), if(), L, last, len, MAX_STORED, MIN, need_more, read_buf(), Z_FINISH, Z_NO_FLUSH, and zmemcpy.
Referenced by deflate().
Definition at line 696 of file deflate.c.
References deflateStateCheck(), internal_state::gzhead, internal_state::hash_bits, str, internal_state::strm, internal_state::strstart, internal_state::w_bits, internal_state::wrap, and Z_NULL.
Definition at line 1156 of file deflate.c.
References internal_state::bl_desc, internal_state::bl_tree, internal_state::d_desc, deflateEnd(), deflateStateCheck(), internal_state::dyn_dtree, internal_state::dyn_ltree, tree_desc_s::dyn_tree, FAR, internal_state::hash_size, internal_state::head, internal_state::l_desc, internal_state::lit_bufsize, internal_state::pending_buf, internal_state::pending_buf_size, internal_state::pending_out, internal_state::prev, internal_state::strm, internal_state::sym_buf, internal_state::w_size, internal_state::window, Z_MEM_ERROR, Z_NULL, Z_OK, Z_STREAM_ERROR, ZALLOC, and zmemcpy.
Definition at line 1130 of file deflate.c.
References BUSY_STATE, deflateStateCheck(), internal_state::status, internal_state::strm, TRY_FREE, Z_DATA_ERROR, Z_NULL, Z_OK, Z_STREAM_ERROR, and ZFREE.
Referenced by compress2(), def(), deflateCopy(), deflateInit2_(), gzclose_w(), gztack(), log_compress(), main(), and zipCloseFileInZipRaw64().
Definition at line 481 of file deflate.c.
References deflateStateCheck(), len, internal_state::lookahead, internal_state::strm, internal_state::strstart, internal_state::w_size, internal_state::window, Z_NULL, Z_OK, Z_STREAM_ERROR, and zmemcpy.
| int ZEXPORT deflateInit2_ | ( | z_streamp | strm, |
| int | level, | ||
| int | method, | ||
| int | windowBits, | ||
| int | memLevel, | ||
| int | strategy, | ||
| const char * | version, | ||
| int | stream_size | ||
| ) |
Definition at line 237 of file deflate.c.
References deflateEnd(), deflateReset(), ERR_MSG, FAR, FINISH_STATE, internal_state::gzhead, internal_state::hash_bits, internal_state::hash_mask, internal_state::hash_shift, internal_state::hash_size, internal_state::head, internal_state::high_water, if(), INIT_STATE, internal_state::level, internal_state::lit_bufsize, MAX_MEM_LEVEL, internal_state::method, MIN_MATCH, internal_state::pending_buf, internal_state::pending_buf_size, internal_state::prev, internal_state::status, internal_state::strategy, internal_state::strm, internal_state::sym_buf, internal_state::sym_end, internal_state::w_bits, internal_state::w_mask, internal_state::w_size, internal_state::window, internal_state::wrap, Z_DEFAULT_COMPRESSION, Z_DEFLATED, Z_FIXED, Z_MEM_ERROR, Z_NULL, Z_STREAM_ERROR, Z_VERSION_ERROR, ZALLOC, zcalloc(), zcfree(), and ZLIB_VERSION.
Referenced by deflateInit_().
Definition at line 225 of file deflate.c.
References DEF_MEM_LEVEL, deflateInit2_(), MAX_WBITS, Z_DEFAULT_STRATEGY, and Z_DEFLATED.
Definition at line 605 of file deflate.c.
References internal_state::block_start, CLEAR_HASH, configuration_table, deflate(), deflateStateCheck(), err, config_s::func, config_s::good_length, internal_state::good_match, internal_state::last_flush, internal_state::level, internal_state::lookahead, internal_state::matches, config_s::max_chain, internal_state::max_chain_length, config_s::max_lazy, internal_state::max_lazy_match, config_s::nice_length, internal_state::nice_match, slide_hash(), internal_state::strategy, internal_state::strm, internal_state::strstart, Z_BLOCK, Z_BUF_ERROR, Z_DEFAULT_COMPRESSION, Z_FIXED, Z_OK, and Z_STREAM_ERROR.
Referenced by gzsetparams().
Definition at line 564 of file deflate.c.
References bits(), deflateStateCheck(), internal_state::pending, internal_state::strm, Z_NULL, Z_OK, and Z_STREAM_ERROR.
Definition at line 578 of file deflate.c.
References _tr_flush_bits(), internal_state::bi_buf, internal_state::bi_valid, bits(), Buf_size, deflateStateCheck(), internal_state::pending_out, internal_state::strm, internal_state::sym_buf, Z_BUF_ERROR, Z_OK, and Z_STREAM_ERROR.
Referenced by gzscan(), and log_compress().
Definition at line 541 of file deflate.c.
References deflateResetKeep(), lm_init(), internal_state::strm, and Z_OK.
Referenced by deflateInit2_(), gz_comp(), and main().
Definition at line 503 of file deflate.c.
References _tr_init(), adler32(), crc32(), deflateStateCheck(), GZIP_STATE, if(), INIT_STATE, L, internal_state::last_flush, internal_state::pending, internal_state::pending_buf, internal_state::pending_out, internal_state::status, internal_state::strm, internal_state::wrap, Z_NULL, Z_OK, Z_STREAM_ERROR, and Z_UNKNOWN.
Referenced by deflateReset().
Definition at line 412 of file deflate.c.
References adler32(), internal_state::block_start, CLEAR_HASH, deflateStateCheck(), fill_window(), internal_state::head, INIT_STATE, internal_state::ins_h, internal_state::insert, L, long(), internal_state::lookahead, internal_state::match_available, internal_state::match_length, MIN_MATCH, internal_state::prev, internal_state::prev_length, internal_state::status, str, internal_state::strm, internal_state::strstart, UPDATE_HASH, internal_state::w_mask, internal_state::w_size, internal_state::window, internal_state::wrap, z_const, Z_NULL, Z_OK, and Z_STREAM_ERROR.
Referenced by gzscan(), and log_compress().
| int ZEXPORT deflateSetHeader | ( | z_streamp | strm, |
| gz_headerp | head | ||
| ) |
Definition at line 553 of file deflate.c.
References deflateStateCheck(), internal_state::head, internal_state::strm, Z_OK, and Z_STREAM_ERROR.
Definition at line 389 of file deflate.c.
References BUSY_STATE, COMMENT_STATE, EXTRA_STATE, FINISH_STATE, GZIP, GZIP_STATE, HCRC_STATE, INIT_STATE, NAME_STATE, internal_state::status, internal_state::strm, and Z_NULL.
Referenced by deflate(), deflateBound(), deflateCopy(), deflateEnd(), deflateGetDictionary(), deflateParams(), deflatePending(), deflatePrime(), deflateResetKeep(), deflateSetDictionary(), deflateSetHeader(), and deflateTune().
| int ZEXPORT deflateTune | ( | z_streamp | strm, |
| int | good_length, | ||
| int | max_lazy, | ||
| int | nice_length, | ||
| int | max_chain | ||
| ) |
Definition at line 654 of file deflate.c.
References deflateStateCheck(), internal_state::good_match, internal_state::max_chain_length, internal_state::max_lazy_match, internal_state::nice_match, internal_state::strm, Z_OK, and Z_STREAM_ERROR.
| void fill_window | ( | deflate_state * | s | ) |
Definition at line 1527 of file deflate.c.
References Assert, if(), long(), MAX_DIST, MIN_LOOKAHEAD, MIN_MATCH, read_buf(), slide_hash(), str, UPDATE_HASH, internal_state::w_size, WIN_INIT, zmemcpy, and zmemzero.
Referenced by deflate_fast(), deflate_huff(), deflate_rle(), deflate_slow(), and deflateSetDictionary().
| void flush_pending | ( | z_streamp | strm | ) |
Definition at line 782 of file deflate.c.
References _tr_flush_bits(), len, internal_state::pending, internal_state::pending_buf, internal_state::pending_out, internal_state::strm, and zmemcpy.
Referenced by deflate(), and deflate_stored().
| void lm_init | ( | deflate_state * | s | ) |
Definition at line 1245 of file deflate.c.
References CLEAR_HASH, configuration_table, config_s::good_length, L, config_s::max_chain, config_s::max_lazy, MIN_MATCH, config_s::nice_length, and internal_state::window_size.
Referenced by deflateReset().
| uInt longest_match | ( | deflate_state * | s, |
| IPos | cur_match | ||
| ) |
Definition at line 1278 of file deflate.c.
References Assert, int(), len, match, internal_state::max_chain_length, MAX_DIST, MAX_MATCH, MIN_LOOKAHEAD, internal_state::nice_match, NIL, internal_state::prev, strstart, and internal_state::window.
Referenced by deflate_fast(), and deflate_slow().
| void slide_hash OF | ( | (deflate_state *s) | ) |
| uInt longest_match OF | ( | (deflate_state *s, IPos cur_match) | ) |
| void putShortMSB OF | ( | (deflate_state *s, uInt b) | ) |
| int deflateStateCheck OF | ( | (z_streamp strm) | ) |
| void putShortMSB | ( | deflate_state * | s, |
| uInt | b | ||
| ) |
Definition at line 1215 of file deflate.c.
References adler32(), crc32(), len, internal_state::strm, and zmemcpy.
Referenced by deflate_stored(), and fill_window().
| void slide_hash | ( | deflate_state * | s | ) |
Definition at line 198 of file deflate.c.
References NIL, and internal_state::w_size.
Referenced by deflateParams(), and fill_window().
Definition at line 128 of file deflate.c.
Referenced by deflate(), deflateParams(), and lm_init().