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2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. 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 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.
257 lines
6.9 KiB
C++
257 lines
6.9 KiB
C++
/*
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* Copyright (c) 2011, 2012, 2014 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* vga.h
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* A Video Graphics Array driver.
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*/
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#ifndef SORTIX_VGA_H
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#define SORTIX_VGA_H
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#include <stddef.h>
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#include <sortix/kernel/refcount.h>
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namespace Sortix {
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class Descriptor;
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const size_t VGA_FONT_WIDTH = 8UL;
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const size_t VGA_FONT_HEIGHT = 16UL;
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const size_t VGA_FONT_NUMCHARS = 256UL;
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const size_t VGA_FONT_CHARSIZE = VGA_FONT_WIDTH * VGA_FONT_HEIGHT / 8UL;
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namespace VGA {
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// https://en.wikipedia.org/wiki/Code_page_437
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__attribute__((unused))
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static inline int MapWideToVGAFont(wchar_t c)
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{
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if ( 32 <= c && c < 127 )
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return (int) c;
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switch ( c )
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{
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case L'☺': return 1;
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case L'☻': return 2;
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case L'♥': return 3;
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case L'♦': return 4;
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case L'♣': return 5;
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case L'♠': return 6;
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case L'•': return 7;
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case L'◘': return 8;
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case L'○': return 9;
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case L'◙': return 10;
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case L'♂': return 11;
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case L'♀': return 12;
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case L'♪': return 13;
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case L'♬': return 14;
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case L'☼': return 15;
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case L'►': return 16;
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case L'◄': return 17;
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case L'↕': return 18;
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case L'‼': return 19;
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case L'¶': return 20;
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case L'§': return 21;
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case L'▬': return 22;
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case L'↨': return 23;
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case L'↑': return 24;
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case L'↓': return 25;
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case L'→': return 26;
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case L'←': return 27;
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case L'∟': return 28;
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case L'↔': return 29;
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case L'▲': return 30;
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case L'▼': return 31;
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case L'⌂': return 127;
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case L'Ç': return 128;
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case L'ü': return 129;
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case L'é': return 130;
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case L'â': return 131;
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case L'ä': return 132;
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case L'à': return 133;
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case L'å': return 134;
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case L'ç': return 135;
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case L'ê': return 136;
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case L'ë': return 137;
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case L'è': return 138;
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case L'ï': return 139;
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case L'î': return 140;
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case L'ì': return 141;
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case L'Ä': return 142;
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case L'Å': return 143;
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case L'É': return 144;
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case L'æ': return 145;
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case L'Æ': return 146;
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case L'ô': return 147;
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case L'ö': return 148;
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case L'ò': return 149;
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case L'û': return 150;
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case L'ù': return 151;
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case L'ÿ': return 152;
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case L'Ö': return 153;
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case L'Ü': return 154;
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case L'¢': return 155;
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case L'£': return 156;
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case L'¥': return 157;
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case L'₧': return 158;
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case L'ƒ': return 159;
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case L'á': return 160;
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case L'í': return 161;
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case L'ó': return 162;
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case L'ú': return 163;
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case L'ñ': return 164;
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case L'Ñ': return 165;
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case L'ª': return 166;
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case L'º': return 167;
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case L'¿': return 168;
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case L'⌐': return 169;
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case L'¬': return 170;
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case L'½': return 171;
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case L'¼': return 172;
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case L'¡': return 173;
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case L'«': return 174;
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case L'»': return 175;
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case L'░': return 176;
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case L'▒': return 177;
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case L'▓': return 178;
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case L'│': return 179;
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case L'┤': return 180;
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case L'╡': return 181;
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case L'╢': return 182;
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case L'╖': return 183;
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case L'╕': return 184;
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case L'╣': return 185;
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case L'║': return 186;
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case L'╗': return 187;
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case L'╝': return 188;
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case L'╜': return 189;
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case L'╛': return 190;
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case L'┐': return 191;
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case L'└': return 192;
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case L'┴': return 193;
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case L'┬': return 194;
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case L'├': return 195;
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case L'─': return 196;
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case L'┼': return 197;
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case L'╞': return 198;
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case L'╟': return 199;
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case L'╚': return 200;
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case L'╔': return 201;
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case L'╩': return 202;
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case L'╦': return 203;
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case L'╠': return 204;
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case L'═': return 205;
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case L'╬': return 206;
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case L'╧': return 207;
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case L'╨': return 208;
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case L'╤': return 209;
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case L'╥': return 210;
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case L'╙': return 211;
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case L'╘': return 212;
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case L'╒': return 213;
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case L'╓': return 214;
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case L'╫': return 215;
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case L'╪': return 216;
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case L'┘': return 217;
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case L'┌': return 218;
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case L'█': return 219;
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case L'▄': return 220;
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case L'▌': return 221;
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case L'▐': return 222;
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case L'▀': return 223;
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case L'α': return 224;
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case L'ß': return 225; /* German sharp S U+00DF */
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case L'β': return 225; /* Greek lowercase beta U+03B2 */
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case L'Γ': return 226;
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case L'π': return 227;
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case L'Σ': return 228; /* Greek uppercase sigma U+03A3 */
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case L'∑': return 228; /* n-ary summation sign U+2211 (replacement) */
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case L'σ': return 229;
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case L'µ': return 230;
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case L'τ': return 231;
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case L'Φ': return 232;
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case L'Θ': return 233;
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case L'Ω': return 234;
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case L'δ': return 235; /* Greek lowercase delta U+03B4 */
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case L'ð': return 235; /* Icelandic lowercase eth U+00F0 (replacement) */
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case L'∂': return 235; /* Partial derivative sign U+2202 (replacement) */
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case L'∞': return 236;
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case L'φ': return 237; /* Greek lowercase phi U+03C6 */
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case L'∅': return 237; /* Empty set sign U+2205 (replacement) */
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case L'ϕ': return 237; /* Greek phi symbol in italics U+03D5 (replacement) */
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case L'⌀': return 237; /* Diameter sign U+2300 (replacement) */
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case L'ø': return 237; /* Latin lowercase O with stroke U+00F8 (replacement) */
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case L'Ø': return 237; /* Latin uppercase O with stroke U+00D8 (replacement) */
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case L'ε': return 238; /* Greek lowercase epsilon U+03B5 */
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case L'∈': return 238; /* Element-of sign U+2208 */
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case L'€': return 238; /* Euro sign U+20AC */
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case L'∩': return 239;
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case L'≡': return 240;
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case L'±': return 241;
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case L'≥': return 242;
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case L'≤': return 243;
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case L'⌠': return 244;
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case L'⌡': return 245;
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case L'÷': return 246;
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case L'≈': return 247;
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case L'°': return 248;
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case L'∙': return 249;
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case L'·': return 250;
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case L'√': return 251;
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case L'ⁿ': return 252;
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case L'²': return 253;
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case L'■': return 254;
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default: return 0 <= c && c < 256 ? c : -1;
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}
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}
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__attribute__((unused))
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static const uint8_t font_replacement_character[16] =
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{
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0b00000000,
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0b00010000,
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0b00111000,
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0b01000100,
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0b10111010,
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0b10111010,
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0b11110110,
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0b11101110,
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0b11101110,
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0b11111110,
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0b01101100,
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0b00101000,
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0b00010000,
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0b00000000,
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0b00000000,
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0b00000000,
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};
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__attribute__((unused))
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static inline const uint8_t* GetCharacterFont(const uint8_t* font, int remap)
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{
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if ( remap < 0 )
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return font_replacement_character;
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return font + 16 * remap;
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}
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void Init(const char* devpath, Ref<Descriptor> slashdev);
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void SetCursor(unsigned x, unsigned y);
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const uint8_t* GetFont();
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} // namespace VGA
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} // namespace Sortix
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#endif
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