/* $OpenBSD: colour.c,v 1.11 2015/06/05 22:50:27 nicm Exp $ */ /* * Copyright (c) 2008 Nicholas Marriott * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include "tmux.h" /* * Colour to string conversion functions. Bit 8 of the colour means it is one * of the 256 colour palette. */ struct colour_rgb { u_char i; u_char r; u_char g; u_char b; }; const struct colour_rgb colour_from_256[] = { { 0, 0x00, 0x00, 0x00 }, { 1, 0x00, 0x00, 0x5f }, { 2, 0x00, 0x00, 0x87 }, { 3, 0x00, 0x00, 0xaf }, { 4, 0x00, 0x00, 0xd7 }, { 5, 0x00, 0x00, 0xff }, { 6, 0x00, 0x5f, 0x00 }, { 7, 0x00, 0x5f, 0x5f }, { 8, 0x00, 0x5f, 0x87 }, { 9, 0x00, 0x5f, 0xaf }, { 10, 0x00, 0x5f, 0xd7 }, { 11, 0x00, 0x5f, 0xff }, { 12, 0x00, 0x87, 0x00 }, { 13, 0x00, 0x87, 0x5f }, { 14, 0x00, 0x87, 0x87 }, { 15, 0x00, 0x87, 0xaf }, { 16, 0x00, 0x87, 0xd7 }, { 17, 0x00, 0x87, 0xff }, { 18, 0x00, 0xaf, 0x00 }, { 19, 0x00, 0xaf, 0x5f }, { 20, 0x00, 0xaf, 0x87 }, { 21, 0x00, 0xaf, 0xaf }, { 22, 0x00, 0xaf, 0xd7 }, { 23, 0x00, 0xaf, 0xff }, { 24, 0x00, 0xd7, 0x00 }, { 25, 0x00, 0xd7, 0x5f }, { 26, 0x00, 0xd7, 0x87 }, { 27, 0x00, 0xd7, 0xaf }, { 28, 0x00, 0xd7, 0xd7 }, { 29, 0x00, 0xd7, 0xff }, { 30, 0x00, 0xff, 0x00 }, { 31, 0x00, 0xff, 0x5f }, { 32, 0x00, 0xff, 0x87 }, { 33, 0x00, 0xff, 0xaf }, { 34, 0x00, 0xff, 0xd7 }, { 35, 0x00, 0xff, 0xff }, { 36, 0x5f, 0x00, 0x00 }, { 37, 0x5f, 0x00, 0x5f }, { 38, 0x5f, 0x00, 0x87 }, { 39, 0x5f, 0x00, 0xaf }, { 40, 0x5f, 0x00, 0xd7 }, { 41, 0x5f, 0x00, 0xff }, { 42, 0x5f, 0x5f, 0x00 }, { 43, 0x5f, 0x5f, 0x5f }, { 44, 0x5f, 0x5f, 0x87 }, { 45, 0x5f, 0x5f, 0xaf }, { 46, 0x5f, 0x5f, 0xd7 }, { 47, 0x5f, 0x5f, 0xff }, { 48, 0x5f, 0x87, 0x00 }, { 49, 0x5f, 0x87, 0x5f }, { 50, 0x5f, 0x87, 0x87 }, { 51, 0x5f, 0x87, 0xaf }, { 52, 0x5f, 0x87, 0xd7 }, { 53, 0x5f, 0x87, 0xff }, { 54, 0x5f, 0xaf, 0x00 }, { 55, 0x5f, 0xaf, 0x5f }, { 56, 0x5f, 0xaf, 0x87 }, { 57, 0x5f, 0xaf, 0xaf }, { 58, 0x5f, 0xaf, 0xd7 }, { 59, 0x5f, 0xaf, 0xff }, { 60, 0x5f, 0xd7, 0x00 }, { 61, 0x5f, 0xd7, 0x5f }, { 62, 0x5f, 0xd7, 0x87 }, { 63, 0x5f, 0xd7, 0xaf }, { 64, 0x5f, 0xd7, 0xd7 }, { 65, 0x5f, 0xd7, 0xff }, { 66, 0x5f, 0xff, 0x00 }, { 67, 0x5f, 0xff, 0x5f }, { 68, 0x5f, 0xff, 0x87 }, { 69, 0x5f, 0xff, 0xaf }, { 70, 0x5f, 0xff, 0xd7 }, { 71, 0x5f, 0xff, 0xff }, { 72, 0x87, 0x00, 0x00 }, { 73, 0x87, 0x00, 0x5f }, { 74, 0x87, 0x00, 0x87 }, { 75, 0x87, 0x00, 0xaf }, { 76, 0x87, 0x00, 0xd7 }, { 77, 0x87, 0x00, 0xff }, { 78, 0x87, 0x5f, 0x00 }, { 79, 0x87, 0x5f, 0x5f }, { 80, 0x87, 0x5f, 0x87 }, { 81, 0x87, 0x5f, 0xaf }, { 82, 0x87, 0x5f, 0xd7 }, { 83, 0x87, 0x5f, 0xff }, { 84, 0x87, 0x87, 0x00 }, { 85, 0x87, 0x87, 0x5f }, { 86, 0x87, 0x87, 0x87 }, { 87, 0x87, 0x87, 0xaf }, { 88, 0x87, 0x87, 0xd7 }, { 89, 0x87, 0x87, 0xff }, { 90, 0x87, 0xaf, 0x00 }, { 91, 0x87, 0xaf, 0x5f }, { 92, 0x87, 0xaf, 0x87 }, { 93, 0x87, 0xaf, 0xaf }, { 94, 0x87, 0xaf, 0xd7 }, { 95, 0x87, 0xaf, 0xff }, { 96, 0x87, 0xd7, 0x00 }, { 97, 0x87, 0xd7, 0x5f }, { 98, 0x87, 0xd7, 0x87 }, { 99, 0x87, 0xd7, 0xaf }, { 100, 0x87, 0xd7, 0xd7 }, { 101, 0x87, 0xd7, 0xff }, { 102, 0x87, 0xff, 0x00 }, { 103, 0x87, 0xff, 0x5f }, { 104, 0x87, 0xff, 0x87 }, { 105, 0x87, 0xff, 0xaf }, { 106, 0x87, 0xff, 0xd7 }, { 107, 0x87, 0xff, 0xff }, { 108, 0xaf, 0x00, 0x00 }, { 109, 0xaf, 0x00, 0x5f }, { 110, 0xaf, 0x00, 0x87 }, { 111, 0xaf, 0x00, 0xaf }, { 112, 0xaf, 0x00, 0xd7 }, { 113, 0xaf, 0x00, 0xff }, { 114, 0xaf, 0x5f, 0x00 }, { 115, 0xaf, 0x5f, 0x5f }, { 116, 0xaf, 0x5f, 0x87 }, { 117, 0xaf, 0x5f, 0xaf }, { 118, 0xaf, 0x5f, 0xd7 }, { 119, 0xaf, 0x5f, 0xff }, { 120, 0xaf, 0x87, 0x00 }, { 121, 0xaf, 0x87, 0x5f }, { 122, 0xaf, 0x87, 0x87 }, { 123, 0xaf, 0x87, 0xaf }, { 124, 0xaf, 0x87, 0xd7 }, { 125, 0xaf, 0x87, 0xff }, { 126, 0xaf, 0xaf, 0x00 }, { 127, 0xaf, 0xaf, 0x5f }, { 128, 0xaf, 0xaf, 0x87 }, { 129, 0xaf, 0xaf, 0xaf }, { 130, 0xaf, 0xaf, 0xd7 }, { 131, 0xaf, 0xaf, 0xff }, { 132, 0xaf, 0xd7, 0x00 }, { 133, 0xaf, 0xd7, 0x5f }, { 134, 0xaf, 0xd7, 0x87 }, { 135, 0xaf, 0xd7, 0xaf }, { 136, 0xaf, 0xd7, 0xd7 }, { 137, 0xaf, 0xd7, 0xff }, { 138, 0xaf, 0xff, 0x00 }, { 139, 0xaf, 0xff, 0x5f }, { 140, 0xaf, 0xff, 0x87 }, { 141, 0xaf, 0xff, 0xaf }, { 142, 0xaf, 0xff, 0xd7 }, { 143, 0xaf, 0xff, 0xff }, { 144, 0xd7, 0x00, 0x00 }, { 145, 0xd7, 0x00, 0x5f }, { 146, 0xd7, 0x00, 0x87 }, { 147, 0xd7, 0x00, 0xaf }, { 148, 0xd7, 0x00, 0xd7 }, { 149, 0xd7, 0x00, 0xff }, { 150, 0xd7, 0x5f, 0x00 }, { 151, 0xd7, 0x5f, 0x5f }, { 152, 0xd7, 0x5f, 0x87 }, { 153, 0xd7, 0x5f, 0xaf }, { 154, 0xd7, 0x5f, 0xd7 }, { 155, 0xd7, 0x5f, 0xff }, { 156, 0xd7, 0x87, 0x00 }, { 157, 0xd7, 0x87, 0x5f }, { 158, 0xd7, 0x87, 0x87 }, { 159, 0xd7, 0x87, 0xaf }, { 160, 0xd7, 0x87, 0xd7 }, { 161, 0xd7, 0x87, 0xff }, { 162, 0xd7, 0xaf, 0x00 }, { 163, 0xd7, 0xaf, 0x5f }, { 164, 0xd7, 0xaf, 0x87 }, { 165, 0xd7, 0xaf, 0xaf }, { 166, 0xd7, 0xaf, 0xd7 }, { 167, 0xd7, 0xaf, 0xff }, { 168, 0xd7, 0xd7, 0x00 }, { 169, 0xd7, 0xd7, 0x5f }, { 170, 0xd7, 0xd7, 0x87 }, { 171, 0xd7, 0xd7, 0xaf }, { 172, 0xd7, 0xd7, 0xd7 }, { 173, 0xd7, 0xd7, 0xff }, { 174, 0xd7, 0xff, 0x00 }, { 175, 0xd7, 0xff, 0x5f }, { 176, 0xd7, 0xff, 0x87 }, { 177, 0xd7, 0xff, 0xaf }, { 178, 0xd7, 0xff, 0xd7 }, { 179, 0xd7, 0xff, 0xff }, { 180, 0xff, 0x00, 0x00 }, { 181, 0xff, 0x00, 0x5f }, { 182, 0xff, 0x00, 0x87 }, { 183, 0xff, 0x00, 0xaf }, { 184, 0xff, 0x00, 0xd7 }, { 185, 0xff, 0x00, 0xff }, { 186, 0xff, 0x5f, 0x00 }, { 187, 0xff, 0x5f, 0x5f }, { 188, 0xff, 0x5f, 0x87 }, { 189, 0xff, 0x5f, 0xaf }, { 190, 0xff, 0x5f, 0xd7 }, { 191, 0xff, 0x5f, 0xff }, { 192, 0xff, 0x87, 0x00 }, { 193, 0xff, 0x87, 0x5f }, { 194, 0xff, 0x87, 0x87 }, { 195, 0xff, 0x87, 0xaf }, { 196, 0xff, 0x87, 0xd7 }, { 197, 0xff, 0x87, 0xff }, { 198, 0xff, 0xaf, 0x00 }, { 199, 0xff, 0xaf, 0x5f }, { 200, 0xff, 0xaf, 0x87 }, { 201, 0xff, 0xaf, 0xaf }, { 202, 0xff, 0xaf, 0xd7 }, { 203, 0xff, 0xaf, 0xff }, { 204, 0xff, 0xd7, 0x00 }, { 205, 0xff, 0xd7, 0x5f }, { 206, 0xff, 0xd7, 0x87 }, { 207, 0xff, 0xd7, 0xaf }, { 208, 0xff, 0xd7, 0xd7 }, { 209, 0xff, 0xd7, 0xff }, { 210, 0xff, 0xff, 0x00 }, { 211, 0xff, 0xff, 0x5f }, { 212, 0xff, 0xff, 0x87 }, { 213, 0xff, 0xff, 0xaf }, { 214, 0xff, 0xff, 0xd7 }, { 215, 0xff, 0xff, 0xff }, { 216, 0x08, 0x08, 0x08 }, { 217, 0x12, 0x12, 0x12 }, { 218, 0x1c, 0x1c, 0x1c }, { 219, 0x26, 0x26, 0x26 }, { 220, 0x30, 0x30, 0x30 }, { 221, 0x3a, 0x3a, 0x3a }, { 222, 0x44, 0x44, 0x44 }, { 223, 0x4e, 0x4e, 0x4e }, { 224, 0x58, 0x58, 0x58 }, { 225, 0x62, 0x62, 0x62 }, { 226, 0x6c, 0x6c, 0x6c }, { 227, 0x76, 0x76, 0x76 }, { 228, 0x80, 0x80, 0x80 }, { 229, 0x8a, 0x8a, 0x8a }, { 230, 0x94, 0x94, 0x94 }, { 231, 0x9e, 0x9e, 0x9e }, { 232, 0xa8, 0xa8, 0xa8 }, { 233, 0xb2, 0xb2, 0xb2 }, { 234, 0xbc, 0xbc, 0xbc }, { 235, 0xc6, 0xc6, 0xc6 }, { 236, 0xd0, 0xd0, 0xd0 }, { 237, 0xda, 0xda, 0xda }, { 238, 0xe4, 0xe4, 0xe4 }, { 239, 0xee, 0xee, 0xee }, }; const struct colour_rgb colour_to_256[] = { { 0, 0x00, 0x00, 0x00 }, { 1, 0x00, 0x00, 0x5f }, { 2, 0x00, 0x00, 0x87 }, { 3, 0x00, 0x00, 0xaf }, { 4, 0x00, 0x00, 0xd7 }, { 5, 0x00, 0x00, 0xff }, { 6, 0x00, 0x5f, 0x00 }, { 7, 0x00, 0x5f, 0x5f }, { 8, 0x00, 0x5f, 0x87 }, { 9, 0x00, 0x5f, 0xaf }, { 10, 0x00, 0x5f, 0xd7 }, { 11, 0x00, 0x5f, 0xff }, { 12, 0x00, 0x87, 0x00 }, { 13, 0x00, 0x87, 0x5f }, { 14, 0x00, 0x87, 0x87 }, { 15, 0x00, 0x87, 0xaf }, { 16, 0x00, 0x87, 0xd7 }, { 17, 0x00, 0x87, 0xff }, { 18, 0x00, 0xaf, 0x00 }, { 19, 0x00, 0xaf, 0x5f }, { 20, 0x00, 0xaf, 0x87 }, { 21, 0x00, 0xaf, 0xaf }, { 22, 0x00, 0xaf, 0xd7 }, { 23, 0x00, 0xaf, 0xff }, { 24, 0x00, 0xd7, 0x00 }, { 25, 0x00, 0xd7, 0x5f }, { 26, 0x00, 0xd7, 0x87 }, { 27, 0x00, 0xd7, 0xaf }, { 28, 0x00, 0xd7, 0xd7 }, { 29, 0x00, 0xd7, 0xff }, { 30, 0x00, 0xff, 0x00 }, { 31, 0x00, 0xff, 0x5f }, { 32, 0x00, 0xff, 0x87 }, { 33, 0x00, 0xff, 0xaf }, { 34, 0x00, 0xff, 0xd7 }, { 35, 0x00, 0xff, 0xff }, { 216, 0x08, 0x08, 0x08 }, { 217, 0x12, 0x12, 0x12 }, { 218, 0x1c, 0x1c, 0x1c }, { 219, 0x26, 0x26, 0x26 }, { 220, 0x30, 0x30, 0x30 }, { 221, 0x3a, 0x3a, 0x3a }, { 222, 0x44, 0x44, 0x44 }, { 223, 0x4e, 0x4e, 0x4e }, { 224, 0x58, 0x58, 0x58 }, { 36, 0x5f, 0x00, 0x00 }, { 37, 0x5f, 0x00, 0x5f }, { 38, 0x5f, 0x00, 0x87 }, { 39, 0x5f, 0x00, 0xaf }, { 40, 0x5f, 0x00, 0xd7 }, { 41, 0x5f, 0x00, 0xff }, { 42, 0x5f, 0x5f, 0x00 }, { 43, 0x5f, 0x5f, 0x5f }, { 44, 0x5f, 0x5f, 0x87 }, { 45, 0x5f, 0x5f, 0xaf }, { 46, 0x5f, 0x5f, 0xd7 }, { 47, 0x5f, 0x5f, 0xff }, { 48, 0x5f, 0x87, 0x00 }, { 49, 0x5f, 0x87, 0x5f }, { 50, 0x5f, 0x87, 0x87 }, { 51, 0x5f, 0x87, 0xaf }, { 52, 0x5f, 0x87, 0xd7 }, { 53, 0x5f, 0x87, 0xff }, { 54, 0x5f, 0xaf, 0x00 }, { 55, 0x5f, 0xaf, 0x5f }, { 56, 0x5f, 0xaf, 0x87 }, { 57, 0x5f, 0xaf, 0xaf }, { 58, 0x5f, 0xaf, 0xd7 }, { 59, 0x5f, 0xaf, 0xff }, { 60, 0x5f, 0xd7, 0x00 }, { 61, 0x5f, 0xd7, 0x5f }, { 62, 0x5f, 0xd7, 0x87 }, { 63, 0x5f, 0xd7, 0xaf }, { 64, 0x5f, 0xd7, 0xd7 }, { 65, 0x5f, 0xd7, 0xff }, { 66, 0x5f, 0xff, 0x00 }, { 67, 0x5f, 0xff, 0x5f }, { 68, 0x5f, 0xff, 0x87 }, { 69, 0x5f, 0xff, 0xaf }, { 70, 0x5f, 0xff, 0xd7 }, { 71, 0x5f, 0xff, 0xff }, { 225, 0x62, 0x62, 0x62 }, { 226, 0x6c, 0x6c, 0x6c }, { 227, 0x76, 0x76, 0x76 }, { 228, 0x80, 0x80, 0x80 }, { 72, 0x87, 0x00, 0x00 }, { 73, 0x87, 0x00, 0x5f }, { 74, 0x87, 0x00, 0x87 }, { 75, 0x87, 0x00, 0xaf }, { 76, 0x87, 0x00, 0xd7 }, { 77, 0x87, 0x00, 0xff }, { 78, 0x87, 0x5f, 0x00 }, { 79, 0x87, 0x5f, 0x5f }, { 80, 0x87, 0x5f, 0x87 }, { 81, 0x87, 0x5f, 0xaf }, { 82, 0x87, 0x5f, 0xd7 }, { 83, 0x87, 0x5f, 0xff }, { 84, 0x87, 0x87, 0x00 }, { 85, 0x87, 0x87, 0x5f }, { 86, 0x87, 0x87, 0x87 }, { 87, 0x87, 0x87, 0xaf }, { 88, 0x87, 0x87, 0xd7 }, { 89, 0x87, 0x87, 0xff }, { 90, 0x87, 0xaf, 0x00 }, { 91, 0x87, 0xaf, 0x5f }, { 92, 0x87, 0xaf, 0x87 }, { 93, 0x87, 0xaf, 0xaf }, { 94, 0x87, 0xaf, 0xd7 }, { 95, 0x87, 0xaf, 0xff }, { 96, 0x87, 0xd7, 0x00 }, { 97, 0x87, 0xd7, 0x5f }, { 98, 0x87, 0xd7, 0x87 }, { 99, 0x87, 0xd7, 0xaf }, { 100, 0x87, 0xd7, 0xd7 }, { 101, 0x87, 0xd7, 0xff }, { 102, 0x87, 0xff, 0x00 }, { 103, 0x87, 0xff, 0x5f }, { 104, 0x87, 0xff, 0x87 }, { 105, 0x87, 0xff, 0xaf }, { 106, 0x87, 0xff, 0xd7 }, { 107, 0x87, 0xff, 0xff }, { 229, 0x8a, 0x8a, 0x8a }, { 230, 0x94, 0x94, 0x94 }, { 231, 0x9e, 0x9e, 0x9e }, { 232, 0xa8, 0xa8, 0xa8 }, { 108, 0xaf, 0x00, 0x00 }, { 109, 0xaf, 0x00, 0x5f }, { 110, 0xaf, 0x00, 0x87 }, { 111, 0xaf, 0x00, 0xaf }, { 112, 0xaf, 0x00, 0xd7 }, { 113, 0xaf, 0x00, 0xff }, { 114, 0xaf, 0x5f, 0x00 }, { 115, 0xaf, 0x5f, 0x5f }, { 116, 0xaf, 0x5f, 0x87 }, { 117, 0xaf, 0x5f, 0xaf }, { 118, 0xaf, 0x5f, 0xd7 }, { 119, 0xaf, 0x5f, 0xff }, { 120, 0xaf, 0x87, 0x00 }, { 121, 0xaf, 0x87, 0x5f }, { 122, 0xaf, 0x87, 0x87 }, { 123, 0xaf, 0x87, 0xaf }, { 124, 0xaf, 0x87, 0xd7 }, { 125, 0xaf, 0x87, 0xff }, { 126, 0xaf, 0xaf, 0x00 }, { 127, 0xaf, 0xaf, 0x5f }, { 128, 0xaf, 0xaf, 0x87 }, { 129, 0xaf, 0xaf, 0xaf }, { 130, 0xaf, 0xaf, 0xd7 }, { 131, 0xaf, 0xaf, 0xff }, { 132, 0xaf, 0xd7, 0x00 }, { 133, 0xaf, 0xd7, 0x5f }, { 134, 0xaf, 0xd7, 0x87 }, { 135, 0xaf, 0xd7, 0xaf }, { 136, 0xaf, 0xd7, 0xd7 }, { 137, 0xaf, 0xd7, 0xff }, { 138, 0xaf, 0xff, 0x00 }, { 139, 0xaf, 0xff, 0x5f }, { 140, 0xaf, 0xff, 0x87 }, { 141, 0xaf, 0xff, 0xaf }, { 142, 0xaf, 0xff, 0xd7 }, { 143, 0xaf, 0xff, 0xff }, { 233, 0xb2, 0xb2, 0xb2 }, { 234, 0xbc, 0xbc, 0xbc }, { 235, 0xc6, 0xc6, 0xc6 }, { 236, 0xd0, 0xd0, 0xd0 }, { 144, 0xd7, 0x00, 0x00 }, { 145, 0xd7, 0x00, 0x5f }, { 146, 0xd7, 0x00, 0x87 }, { 147, 0xd7, 0x00, 0xaf }, { 148, 0xd7, 0x00, 0xd7 }, { 149, 0xd7, 0x00, 0xff }, { 150, 0xd7, 0x5f, 0x00 }, { 151, 0xd7, 0x5f, 0x5f }, { 152, 0xd7, 0x5f, 0x87 }, { 153, 0xd7, 0x5f, 0xaf }, { 154, 0xd7, 0x5f, 0xd7 }, { 155, 0xd7, 0x5f, 0xff }, { 156, 0xd7, 0x87, 0x00 }, { 157, 0xd7, 0x87, 0x5f }, { 158, 0xd7, 0x87, 0x87 }, { 159, 0xd7, 0x87, 0xaf }, { 160, 0xd7, 0x87, 0xd7 }, { 161, 0xd7, 0x87, 0xff }, { 162, 0xd7, 0xaf, 0x00 }, { 163, 0xd7, 0xaf, 0x5f }, { 164, 0xd7, 0xaf, 0x87 }, { 165, 0xd7, 0xaf, 0xaf }, { 166, 0xd7, 0xaf, 0xd7 }, { 167, 0xd7, 0xaf, 0xff }, { 168, 0xd7, 0xd7, 0x00 }, { 169, 0xd7, 0xd7, 0x5f }, { 170, 0xd7, 0xd7, 0x87 }, { 171, 0xd7, 0xd7, 0xaf }, { 172, 0xd7, 0xd7, 0xd7 }, { 173, 0xd7, 0xd7, 0xff }, { 174, 0xd7, 0xff, 0x00 }, { 175, 0xd7, 0xff, 0x5f }, { 176, 0xd7, 0xff, 0x87 }, { 177, 0xd7, 0xff, 0xaf }, { 178, 0xd7, 0xff, 0xd7 }, { 179, 0xd7, 0xff, 0xff }, { 237, 0xda, 0xda, 0xda }, { 238, 0xe4, 0xe4, 0xe4 }, { 239, 0xee, 0xee, 0xee }, { 180, 0xff, 0x00, 0x00 }, { 181, 0xff, 0x00, 0x5f }, { 182, 0xff, 0x00, 0x87 }, { 183, 0xff, 0x00, 0xaf }, { 184, 0xff, 0x00, 0xd7 }, { 185, 0xff, 0x00, 0xff }, { 186, 0xff, 0x5f, 0x00 }, { 187, 0xff, 0x5f, 0x5f }, { 188, 0xff, 0x5f, 0x87 }, { 189, 0xff, 0x5f, 0xaf }, { 190, 0xff, 0x5f, 0xd7 }, { 191, 0xff, 0x5f, 0xff }, { 192, 0xff, 0x87, 0x00 }, { 193, 0xff, 0x87, 0x5f }, { 194, 0xff, 0x87, 0x87 }, { 195, 0xff, 0x87, 0xaf }, { 196, 0xff, 0x87, 0xd7 }, { 197, 0xff, 0x87, 0xff }, { 198, 0xff, 0xaf, 0x00 }, { 199, 0xff, 0xaf, 0x5f }, { 200, 0xff, 0xaf, 0x87 }, { 201, 0xff, 0xaf, 0xaf }, { 202, 0xff, 0xaf, 0xd7 }, { 203, 0xff, 0xaf, 0xff }, { 204, 0xff, 0xd7, 0x00 }, { 205, 0xff, 0xd7, 0x5f }, { 206, 0xff, 0xd7, 0x87 }, { 207, 0xff, 0xd7, 0xaf }, { 208, 0xff, 0xd7, 0xd7 }, { 209, 0xff, 0xd7, 0xff }, { 210, 0xff, 0xff, 0x00 }, { 211, 0xff, 0xff, 0x5f }, { 212, 0xff, 0xff, 0x87 }, { 213, 0xff, 0xff, 0xaf }, { 214, 0xff, 0xff, 0xd7 }, { 215, 0xff, 0xff, 0xff }, }; int colour_cmp_rgb(const void *, const void *); /* Compare function for bsearch(). */ int colour_cmp_rgb(const void *lhs0, const void *rhs0) { const struct colour_rgb *lhs = lhs0, *rhs = rhs0; if (lhs->r < rhs->r) return (-1); if (lhs->r > rhs->r) return (1); if (lhs->g < rhs->g) return (-1); if (lhs->g > rhs->g) return (1); if (lhs->b < rhs->b) return (-1); if (lhs->b > rhs->b) return (1); return (0); } /* Work out the nearest colour from the 256 colour set. */ int colour_find_rgb(u_char r, u_char g, u_char b) { struct colour_rgb rgb = { .r = r, .g = g, .b = b }, *found; u_int distance, lowest, colour, i; int dr, dg, db; found = bsearch(&rgb, colour_to_256, nitems(colour_to_256), sizeof colour_to_256[0], colour_cmp_rgb); if (found != NULL) return (16 + found->i); colour = 16; lowest = UINT_MAX; for (i = 0; i < 240; i++) { dr = (int)colour_from_256[i].r - r; dg = (int)colour_from_256[i].g - g; db = (int)colour_from_256[i].b - b; distance = dr * dr + dg * dg + db * db; if (distance < lowest) { lowest = distance; colour = 16 + i; } } return (colour); } /* Set grid cell foreground colour. */ void colour_set_fg(struct grid_cell *gc, int c) { if (c & 0x100) gc->flags |= GRID_FLAG_FG256; gc->fg = c; } /* Set grid cell background colour. */ void colour_set_bg(struct grid_cell *gc, int c) { if (c & 0x100) gc->flags |= GRID_FLAG_BG256; gc->bg = c; } /* Convert colour to a string. */ const char * colour_tostring(int c) { static char s[32]; if (c & 0x100) { xsnprintf(s, sizeof s, "colour%d", c & ~0x100); return (s); } switch (c) { case 0: return ("black"); case 1: return ("red"); case 2: return ("green"); case 3: return ("yellow"); case 4: return ("blue"); case 5: return ("magenta"); case 6: return ("cyan"); case 7: return ("white"); case 8: return ("default"); case 90: return ("brightblack"); case 91: return ("brightred"); case 92: return ("brightgreen"); case 93: return ("brightyellow"); case 94: return ("brightblue"); case 95: return ("brightmagenta"); case 96: return ("brightcyan"); case 97: return ("brightwhite"); } return (NULL); } /* Convert colour from string. */ int colour_fromstring(const char *s) { const char *errstr; const char *cp; int n; u_char r, g, b; if (*s == '#' && strlen(s) == 7) { for (cp = s + 1; isxdigit((u_char) *cp); cp++) ; if (*cp != '\0') return (-1); n = sscanf(s + 1, "%2hhx%2hhx%2hhx", &r, &g, &b); if (n != 3) return (-1); return (colour_find_rgb(r, g, b) | 0x100); } if (strncasecmp(s, "colour", (sizeof "colour") - 1) == 0) { n = strtonum(s + (sizeof "colour") - 1, 0, 255, &errstr); if (errstr != NULL) return (-1); return (n | 0x100); } if (strcasecmp(s, "black") == 0 || strcmp(s, "0") == 0) return (0); if (strcasecmp(s, "red") == 0 || strcmp(s, "1") == 0) return (1); if (strcasecmp(s, "green") == 0 || strcmp(s, "2") == 0) return (2); if (strcasecmp(s, "yellow") == 0 || strcmp(s, "3") == 0) return (3); if (strcasecmp(s, "blue") == 0 || strcmp(s, "4") == 0) return (4); if (strcasecmp(s, "magenta") == 0 || strcmp(s, "5") == 0) return (5); if (strcasecmp(s, "cyan") == 0 || strcmp(s, "6") == 0) return (6); if (strcasecmp(s, "white") == 0 || strcmp(s, "7") == 0) return (7); if (strcasecmp(s, "default") == 0 || strcmp(s, "8") == 0) return (8); if (strcasecmp(s, "brightblack") == 0 || strcmp(s, "90") == 0) return (90); if (strcasecmp(s, "brightred") == 0 || strcmp(s, "91") == 0) return (91); if (strcasecmp(s, "brightgreen") == 0 || strcmp(s, "92") == 0) return (92); if (strcasecmp(s, "brightyellow") == 0 || strcmp(s, "93") == 0) return (93); if (strcasecmp(s, "brightblue") == 0 || strcmp(s, "94") == 0) return (94); if (strcasecmp(s, "brightmagenta") == 0 || strcmp(s, "95") == 0) return (95); if (strcasecmp(s, "brightcyan") == 0 || strcmp(s, "96") == 0) return (96); if (strcasecmp(s, "brightwhite") == 0 || strcmp(s, "97") == 0) return (97); return (-1); } /* Convert 256 colour palette to 16. */ u_char colour_256to16(u_char c) { static const u_char table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0, 4, 4, 4, 12, 12, 2, 6, 4, 4, 12, 12, 2, 2, 6, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 5, 4, 4, 12, 12, 3, 8, 4, 4, 12, 12, 2, 2, 6, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 5, 4, 12, 12, 1, 1, 5, 4, 12, 12, 3, 3, 8, 4, 12, 12, 2, 2, 2, 6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 1, 1, 1, 5, 12, 12, 1, 1, 1, 5, 12, 12, 1, 1, 1, 5, 12, 12, 3, 3, 3, 7, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10, 10, 10, 10, 14, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 9, 9, 9, 9, 13, 12, 11, 11, 11, 11, 7, 12, 10, 10, 10, 10, 10, 14, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 9, 9, 9, 9, 9, 13, 11, 11, 11, 11, 11, 15, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15 }; return (table[c]); }