mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
265 lines
7.1 KiB
C++
265 lines
7.1 KiB
C++
/*******************************************************************************
|
||
|
||
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
|
||
|
||
This file is part of Sortix.
|
||
|
||
Sortix is free software: you can redistribute it and/or modify it under the
|
||
terms of the GNU General Public License as published by the Free Software
|
||
Foundation, either version 3 of the License, or (at your option) any later
|
||
version.
|
||
|
||
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
|
||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
||
details.
|
||
|
||
You should have received a copy of the GNU General Public License along with
|
||
Sortix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
vga.h
|
||
A Video Graphics Array driver.
|
||
|
||
*******************************************************************************/
|
||
|
||
#ifndef SORTIX_VGA_H
|
||
#define SORTIX_VGA_H
|
||
|
||
#include <stddef.h>
|
||
|
||
#include <sortix/kernel/refcount.h>
|
||
|
||
namespace Sortix {
|
||
|
||
class Descriptor;
|
||
|
||
const size_t VGA_FONT_WIDTH = 8UL;
|
||
const size_t VGA_FONT_HEIGHT = 16UL;
|
||
const size_t VGA_FONT_NUMCHARS = 256UL;
|
||
const size_t VGA_FONT_CHARSIZE = VGA_FONT_WIDTH * VGA_FONT_HEIGHT / 8UL;
|
||
|
||
namespace VGA {
|
||
|
||
// https://en.wikipedia.org/wiki/Code_page_437
|
||
__attribute__((unused))
|
||
static inline int MapWideToVGAFont(wchar_t c)
|
||
{
|
||
if ( 32 <= c && c < 127 )
|
||
return (int) c;
|
||
switch ( c )
|
||
{
|
||
case L'☺': return 1;
|
||
case L'☻': return 2;
|
||
case L'♥': return 3;
|
||
case L'♦': return 4;
|
||
case L'♣': return 5;
|
||
case L'♠': return 6;
|
||
case L'•': return 7;
|
||
case L'◘': return 8;
|
||
case L'○': return 9;
|
||
case L'◙': return 10;
|
||
case L'♂': return 11;
|
||
case L'♀': return 12;
|
||
case L'♪': return 13;
|
||
case L'♬': return 14;
|
||
case L'☼': return 15;
|
||
case L'►': return 16;
|
||
case L'◄': return 17;
|
||
case L'↕': return 18;
|
||
case L'‼': return 19;
|
||
case L'¶': return 20;
|
||
case L'§': return 21;
|
||
case L'▬': return 22;
|
||
case L'↨': return 23;
|
||
case L'↑': return 24;
|
||
case L'↓': return 25;
|
||
case L'→': return 26;
|
||
case L'←': return 27;
|
||
case L'∟': return 28;
|
||
case L'↔': return 29;
|
||
case L'▲': return 30;
|
||
case L'▼': return 31;
|
||
case L'⌂': return 127;
|
||
case L'Ç': return 128;
|
||
case L'ü': return 129;
|
||
case L'é': return 130;
|
||
case L'â': return 131;
|
||
case L'ä': return 132;
|
||
case L'à': return 133;
|
||
case L'å': return 134;
|
||
case L'ç': return 135;
|
||
case L'ê': return 136;
|
||
case L'ë': return 137;
|
||
case L'è': return 138;
|
||
case L'ï': return 139;
|
||
case L'î': return 140;
|
||
case L'ì': return 141;
|
||
case L'Ä': return 142;
|
||
case L'Å': return 143;
|
||
case L'É': return 144;
|
||
case L'æ': return 145;
|
||
case L'Æ': return 146;
|
||
case L'ô': return 147;
|
||
case L'ö': return 148;
|
||
case L'ò': return 149;
|
||
case L'û': return 150;
|
||
case L'ù': return 151;
|
||
case L'ÿ': return 152;
|
||
case L'Ö': return 153;
|
||
case L'Ü': return 154;
|
||
case L'¢': return 155;
|
||
case L'£': return 156;
|
||
case L'¥': return 157;
|
||
case L'₧': return 158;
|
||
case L'ƒ': return 159;
|
||
case L'á': return 160;
|
||
case L'í': return 161;
|
||
case L'ó': return 162;
|
||
case L'ú': return 163;
|
||
case L'ñ': return 164;
|
||
case L'Ñ': return 165;
|
||
case L'ª': return 166;
|
||
case L'º': return 167;
|
||
case L'¿': return 168;
|
||
case L'⌐': return 169;
|
||
case L'¬': return 170;
|
||
case L'½': return 171;
|
||
case L'¼': return 172;
|
||
case L'¡': return 173;
|
||
case L'«': return 174;
|
||
case L'»': return 175;
|
||
case L'░': return 176;
|
||
case L'▒': return 177;
|
||
case L'▓': return 178;
|
||
case L'│': return 179;
|
||
case L'┤': return 180;
|
||
case L'╡': return 181;
|
||
case L'╢': return 182;
|
||
case L'╖': return 183;
|
||
case L'╕': return 184;
|
||
case L'╣': return 185;
|
||
case L'║': return 186;
|
||
case L'╗': return 187;
|
||
case L'╝': return 188;
|
||
case L'╜': return 189;
|
||
case L'╛': return 190;
|
||
case L'┐': return 191;
|
||
case L'└': return 192;
|
||
case L'┴': return 193;
|
||
case L'┬': return 194;
|
||
case L'├': return 195;
|
||
case L'─': return 196;
|
||
case L'┼': return 197;
|
||
case L'╞': return 198;
|
||
case L'╟': return 199;
|
||
case L'╚': return 200;
|
||
case L'╔': return 201;
|
||
case L'╩': return 202;
|
||
case L'╦': return 203;
|
||
case L'╠': return 204;
|
||
case L'═': return 205;
|
||
case L'╬': return 206;
|
||
case L'╧': return 207;
|
||
case L'╨': return 208;
|
||
case L'╤': return 209;
|
||
case L'╥': return 210;
|
||
case L'╙': return 211;
|
||
case L'╘': return 212;
|
||
case L'╒': return 213;
|
||
case L'╓': return 214;
|
||
case L'╫': return 215;
|
||
case L'╪': return 216;
|
||
case L'┘': return 217;
|
||
case L'┌': return 218;
|
||
case L'█': return 219;
|
||
case L'▄': return 220;
|
||
case L'▌': return 221;
|
||
case L'▐': return 222;
|
||
case L'▀': return 223;
|
||
case L'α': return 224;
|
||
case L'ß': return 225; /* German sharp S U+00DF */
|
||
case L'β': return 225; /* Greek lowercase beta U+03B2 */
|
||
case L'Γ': return 226;
|
||
case L'π': return 227;
|
||
case L'Σ': return 228; /* Greek uppercase sigma U+03A3 */
|
||
case L'∑': return 228; /* n-ary summation sign U+2211 (replacement) */
|
||
case L'σ': return 229;
|
||
case L'µ': return 230;
|
||
case L'τ': return 231;
|
||
case L'Φ': return 232;
|
||
case L'Θ': return 233;
|
||
case L'Ω': return 234;
|
||
case L'δ': return 235; /* Greek lowercase delta U+03B4 */
|
||
case L'ð': return 235; /* Icelandic lowercase eth U+00F0 (replacement) */
|
||
case L'∂': return 235; /* Partial derivative sign U+2202 (replacement) */
|
||
case L'∞': return 236;
|
||
case L'φ': return 237; /* Greek lowercase phi U+03C6 */
|
||
case L'∅': return 237; /* Empty set sign U+2205 (replacement) */
|
||
case L'ϕ': return 237; /* Greek phi symbol in italics U+03D5 (replacement) */
|
||
case L'⌀': return 237; /* Diameter sign U+2300 (replacement) */
|
||
case L'ø': return 237; /* Latin lowercase O with stroke U+00F8 (replacement) */
|
||
case L'Ø': return 237; /* Latin uppercase O with stroke U+00D8 (replacement) */
|
||
case L'ε': return 238; /* Greek lowercase epsilon U+03B5 */
|
||
case L'∈': return 238; /* Element-of sign U+2208 */
|
||
case L'€': return 238; /* Euro sign U+20AC */
|
||
case L'∩': return 239;
|
||
case L'≡': return 240;
|
||
case L'±': return 241;
|
||
case L'≥': return 242;
|
||
case L'≤': return 243;
|
||
case L'⌠': return 244;
|
||
case L'⌡': return 245;
|
||
case L'÷': return 246;
|
||
case L'≈': return 247;
|
||
case L'°': return 248;
|
||
case L'∙': return 249;
|
||
case L'·': return 250;
|
||
case L'√': return 251;
|
||
case L'ⁿ': return 252;
|
||
case L'²': return 253;
|
||
case L'■': return 254;
|
||
default: return 0 <= c && c < 256 ? c : -1;
|
||
}
|
||
}
|
||
|
||
__attribute__((unused))
|
||
static const uint8_t font_replacement_character[16] =
|
||
{
|
||
0b00000000,
|
||
0b00010000,
|
||
0b00111000,
|
||
0b01000100,
|
||
0b10111010,
|
||
0b10111010,
|
||
0b11110110,
|
||
0b11101110,
|
||
0b11101110,
|
||
0b11111110,
|
||
0b01101100,
|
||
0b00101000,
|
||
0b00010000,
|
||
0b00000000,
|
||
0b00000000,
|
||
0b00000000,
|
||
};
|
||
|
||
__attribute__((unused))
|
||
static inline const uint8_t* GetCharacterFont(const uint8_t* font, wchar_t wc)
|
||
{
|
||
if ( wc == L'<EFBFBD>' )
|
||
return font_replacement_character;
|
||
int remap = MapWideToVGAFont(wc);
|
||
if ( remap < 0 )
|
||
return font_replacement_character;
|
||
return font + 16 * remap;
|
||
}
|
||
|
||
void Init(const char* devpath, Ref<Descriptor> slashdev);
|
||
void SetCursor(unsigned x, unsigned y);
|
||
const uint8_t* GetFont();
|
||
|
||
} // namespace VGA
|
||
|
||
} // namespace Sortix
|
||
|
||
#endif
|