vt_termcolors.c revision 259016
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 * $FreeBSD: head/sys/dev/vt/colors/vt_termcolors.c 256530 2013-10-15 12:54:47Z ray $ 30 */ 31 32#include <sys/param.h> 33 34#include <dev/vt/colors/vt_termcolors.h> 35 36static struct { 37 unsigned char r; /* Red percentage value. */ 38 unsigned char g; /* Green percentage value. */ 39 unsigned char b; /* Blue percentage value. */ 40} color_def[16] = { 41 {0, 0, 0}, /* black */ 42 {0, 0, 50}, /* dark blue */ 43 {0, 50, 0}, /* dark green */ 44 {0, 50, 50}, /* dark cyan */ 45 {50, 0, 0}, /* dark red */ 46 {50, 0, 50}, /* dark magenta */ 47 {50, 50, 0}, /* brown */ 48 {75, 75, 75}, /* light gray */ 49 {50, 50, 50}, /* dark gray */ 50 {0, 0, 100}, /* light blue */ 51 {0, 100, 0}, /* light green */ 52 {0, 100, 100}, /* light cyan */ 53 {100, 0, 0}, /* light red */ 54 {100, 0, 100}, /* light magenta */ 55 {100, 100, 0}, /* yellow */ 56 {100, 100, 100}, /* white */ 57}; 58 59int 60vt_generate_vga_palette(uint32_t *palette, int format, uint32_t rmax, int roffset, 61 uint32_t gmax, int goffset, uint32_t bmax, int boffset) 62{ 63 int i; 64 65#define CF(_f, _i) ((_f ## max * color_def[(_i)]._f / 100) << _f ## offset) 66 for (i = 0; i < 16; i++) { 67 switch (format) { 68 case COLOR_FORMAT_VGA: 69 palette[i] = i; 70 break; 71 case COLOR_FORMAT_RGB: 72 palette[i] = CF(r, i) | CF(g, i) | CF(b, i); 73 break; 74 default: 75 return (ENODEV); 76 } 77 } 78#undef CF 79 return (0); 80} 81