1 /*- 2 * Copyright (c) 2013 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Aleksandr Rybalko under sponsorship from the 6 * FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 35 #include <dev/vt/colors/vt_termcolors.h> 36 37 static const struct { 38 unsigned char r; /* Red percentage value. */ 39 unsigned char g; /* Green percentage value. */ 40 unsigned char b; /* Blue percentage value. */ 41 } color_def[16] = { 42 {0, 0, 0}, /* black */ 43 {50, 0, 0}, /* dark red */ 44 {0, 50, 0}, /* dark green */ 45 {77, 63, 0}, /* dark yellow */ 46 {20, 40, 64}, /* dark blue */ 47 {50, 0, 50}, /* dark magenta */ 48 {0, 50, 50}, /* dark cyan */ 49 {75, 75, 75}, /* light gray */ 50 51 {18, 20, 21}, /* dark gray */ 52 {100, 0, 0}, /* light red */ 53 {0, 100, 0}, /* light green */ 54 {100, 100, 0}, /* light yellow */ 55 {45, 62, 81}, /* light blue */ 56 {100, 0, 100}, /* light magenta */ 57 {0, 100, 100}, /* light cyan */ 58 {100, 100, 100}, /* white */ 59 }; 60 61 /* 62 * Between console's palette and VGA's one: 63 * - blue and red are swapped (1 <-> 4) 64 * - yellow ad cyan are swapped (3 <-> 6) 65 */ 66 static const int cons_to_vga_colors[16] = { 67 0, 4, 2, 6, 1, 5, 3, 7, 68 0, 4, 2, 6, 1, 5, 3, 7 69 }; 70 71 int 72 vt_generate_cons_palette(uint32_t *palette, int format, uint32_t rmax, 73 int roffset, uint32_t gmax, int goffset, uint32_t bmax, int boffset) 74 { 75 int i; 76 77 #define CF(_f, _i) ((_f ## max * color_def[(_i)]._f / 100) << _f ## offset) 78 for (i = 0; i < 16; i++) { 79 switch (format) { 80 case COLOR_FORMAT_VGA: 81 palette[i] = cons_to_vga_colors[i]; 82 break; 83 case COLOR_FORMAT_RGB: 84 palette[i] = CF(r, i) | CF(g, i) | CF(b, i); 85 break; 86 default: 87 return (ENODEV); 88 } 89 } 90 #undef CF 91 return (0); 92 } 93