Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | /* * Copyright (c) Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ #ifndef ZSTD_CLEVELS_H #define ZSTD_CLEVELS_H #define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressionParameters */ #include <linux/zstd.h> /*-===== Pre-defined compression levels =====-*/ #define ZSTD_MAX_CLEVEL 22 __attribute__((__unused__)) static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = { { /* "default" - for any srcSize > 256 KB */ /* W, C, H, S, L, TL, strat */ { 19, 12, 13, 1, 6, 1, ZSTD_fast }, /* base for negative levels */ { 19, 13, 14, 1, 7, 0, ZSTD_fast }, /* level 1 */ { 20, 15, 16, 1, 6, 0, ZSTD_fast }, /* level 2 */ { 21, 16, 17, 1, 5, 0, ZSTD_dfast }, /* level 3 */ { 21, 18, 18, 1, 5, 0, ZSTD_dfast }, /* level 4 */ { 21, 18, 19, 3, 5, 2, ZSTD_greedy }, /* level 5 */ { 21, 18, 19, 3, 5, 4, ZSTD_lazy }, /* level 6 */ { 21, 19, 20, 4, 5, 8, ZSTD_lazy }, /* level 7 */ { 21, 19, 20, 4, 5, 16, ZSTD_lazy2 }, /* level 8 */ { 22, 20, 21, 4, 5, 16, ZSTD_lazy2 }, /* level 9 */ { 22, 21, 22, 5, 5, 16, ZSTD_lazy2 }, /* level 10 */ { 22, 21, 22, 6, 5, 16, ZSTD_lazy2 }, /* level 11 */ { 22, 22, 23, 6, 5, 32, ZSTD_lazy2 }, /* level 12 */ { 22, 22, 22, 4, 5, 32, ZSTD_btlazy2 }, /* level 13 */ { 22, 22, 23, 5, 5, 32, ZSTD_btlazy2 }, /* level 14 */ { 22, 23, 23, 6, 5, 32, ZSTD_btlazy2 }, /* level 15 */ { 22, 22, 22, 5, 5, 48, ZSTD_btopt }, /* level 16 */ { 23, 23, 22, 5, 4, 64, ZSTD_btopt }, /* level 17 */ { 23, 23, 22, 6, 3, 64, ZSTD_btultra }, /* level 18 */ { 23, 24, 22, 7, 3,256, ZSTD_btultra2}, /* level 19 */ { 25, 25, 23, 7, 3,256, ZSTD_btultra2}, /* level 20 */ { 26, 26, 24, 7, 3,512, ZSTD_btultra2}, /* level 21 */ { 27, 27, 25, 9, 3,999, ZSTD_btultra2}, /* level 22 */ }, { /* for srcSize <= 256 KB */ /* W, C, H, S, L, T, strat */ { 18, 12, 13, 1, 5, 1, ZSTD_fast }, /* base for negative levels */ { 18, 13, 14, 1, 6, 0, ZSTD_fast }, /* level 1 */ { 18, 14, 14, 1, 5, 0, ZSTD_dfast }, /* level 2 */ { 18, 16, 16, 1, 4, 0, ZSTD_dfast }, /* level 3 */ { 18, 16, 17, 3, 5, 2, ZSTD_greedy }, /* level 4.*/ { 18, 17, 18, 5, 5, 2, ZSTD_greedy }, /* level 5.*/ { 18, 18, 19, 3, 5, 4, ZSTD_lazy }, /* level 6.*/ { 18, 18, 19, 4, 4, 4, ZSTD_lazy }, /* level 7 */ { 18, 18, 19, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */ { 18, 18, 19, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */ { 18, 18, 19, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */ { 18, 18, 19, 5, 4, 12, ZSTD_btlazy2 }, /* level 11.*/ { 18, 19, 19, 7, 4, 12, ZSTD_btlazy2 }, /* level 12.*/ { 18, 18, 19, 4, 4, 16, ZSTD_btopt }, /* level 13 */ { 18, 18, 19, 4, 3, 32, ZSTD_btopt }, /* level 14.*/ { 18, 18, 19, 6, 3,128, ZSTD_btopt }, /* level 15.*/ { 18, 19, 19, 6, 3,128, ZSTD_btultra }, /* level 16.*/ { 18, 19, 19, 8, 3,256, ZSTD_btultra }, /* level 17.*/ { 18, 19, 19, 6, 3,128, ZSTD_btultra2}, /* level 18.*/ { 18, 19, 19, 8, 3,256, ZSTD_btultra2}, /* level 19.*/ { 18, 19, 19, 10, 3,512, ZSTD_btultra2}, /* level 20.*/ { 18, 19, 19, 12, 3,512, ZSTD_btultra2}, /* level 21.*/ { 18, 19, 19, 13, 3,999, ZSTD_btultra2}, /* level 22.*/ }, { /* for srcSize <= 128 KB */ /* W, C, H, S, L, T, strat */ { 17, 12, 12, 1, 5, 1, ZSTD_fast }, /* base for negative levels */ { 17, 12, 13, 1, 6, 0, ZSTD_fast }, /* level 1 */ { 17, 13, 15, 1, 5, 0, ZSTD_fast }, /* level 2 */ { 17, 15, 16, 2, 5, 0, ZSTD_dfast }, /* level 3 */ { 17, 17, 17, 2, 4, 0, ZSTD_dfast }, /* level 4 */ { 17, 16, 17, 3, 4, 2, ZSTD_greedy }, /* level 5 */ { 17, 16, 17, 3, 4, 4, ZSTD_lazy }, /* level 6 */ { 17, 16, 17, 3, 4, 8, ZSTD_lazy2 }, /* level 7 */ { 17, 16, 17, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */ { 17, 16, 17, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */ { 17, 16, 17, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */ { 17, 17, 17, 5, 4, 8, ZSTD_btlazy2 }, /* level 11 */ { 17, 18, 17, 7, 4, 12, ZSTD_btlazy2 }, /* level 12 */ { 17, 18, 17, 3, 4, 12, ZSTD_btopt }, /* level 13.*/ { 17, 18, 17, 4, 3, 32, ZSTD_btopt }, /* level 14.*/ { 17, 18, 17, 6, 3,256, ZSTD_btopt }, /* level 15.*/ { 17, 18, 17, 6, 3,128, ZSTD_btultra }, /* level 16.*/ { 17, 18, 17, 8, 3,256, ZSTD_btultra }, /* level 17.*/ { 17, 18, 17, 10, 3,512, ZSTD_btultra }, /* level 18.*/ { 17, 18, 17, 5, 3,256, ZSTD_btultra2}, /* level 19.*/ { 17, 18, 17, 7, 3,512, ZSTD_btultra2}, /* level 20.*/ { 17, 18, 17, 9, 3,512, ZSTD_btultra2}, /* level 21.*/ { 17, 18, 17, 11, 3,999, ZSTD_btultra2}, /* level 22.*/ }, { /* for srcSize <= 16 KB */ /* W, C, H, S, L, T, strat */ { 14, 12, 13, 1, 5, 1, ZSTD_fast }, /* base for negative levels */ { 14, 14, 15, 1, 5, 0, ZSTD_fast }, /* level 1 */ { 14, 14, 15, 1, 4, 0, ZSTD_fast }, /* level 2 */ { 14, 14, 15, 2, 4, 0, ZSTD_dfast }, /* level 3 */ { 14, 14, 14, 4, 4, 2, ZSTD_greedy }, /* level 4 */ { 14, 14, 14, 3, 4, 4, ZSTD_lazy }, /* level 5.*/ { 14, 14, 14, 4, 4, 8, ZSTD_lazy2 }, /* level 6 */ { 14, 14, 14, 6, 4, 8, ZSTD_lazy2 }, /* level 7 */ { 14, 14, 14, 8, 4, 8, ZSTD_lazy2 }, /* level 8.*/ { 14, 15, 14, 5, 4, 8, ZSTD_btlazy2 }, /* level 9.*/ { 14, 15, 14, 9, 4, 8, ZSTD_btlazy2 }, /* level 10.*/ { 14, 15, 14, 3, 4, 12, ZSTD_btopt }, /* level 11.*/ { 14, 15, 14, 4, 3, 24, ZSTD_btopt }, /* level 12.*/ { 14, 15, 14, 5, 3, 32, ZSTD_btultra }, /* level 13.*/ { 14, 15, 15, 6, 3, 64, ZSTD_btultra }, /* level 14.*/ { 14, 15, 15, 7, 3,256, ZSTD_btultra }, /* level 15.*/ { 14, 15, 15, 5, 3, 48, ZSTD_btultra2}, /* level 16.*/ { 14, 15, 15, 6, 3,128, ZSTD_btultra2}, /* level 17.*/ { 14, 15, 15, 7, 3,256, ZSTD_btultra2}, /* level 18.*/ { 14, 15, 15, 8, 3,256, ZSTD_btultra2}, /* level 19.*/ { 14, 15, 15, 8, 3,512, ZSTD_btultra2}, /* level 20.*/ { 14, 15, 15, 9, 3,512, ZSTD_btultra2}, /* level 21.*/ { 14, 15, 15, 10, 3,999, ZSTD_btultra2}, /* level 22.*/ }, }; #endif /* ZSTD_CLEVELS_H */ |