grub/term/i386/vga_common.c

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2008-11-12 15:02:17 +00:00
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2005,2007,2008 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/i386/vga_common.h>
2008-11-12 15:02:17 +00:00
#include <grub/term.h>
#include <grub/types.h>
grub_uint8_t grub_console_cur_color = 0x7;
static grub_uint8_t grub_console_standard_color = 0x7;
static grub_uint8_t grub_console_normal_color = 0x7;
static grub_uint8_t grub_console_highlight_color = 0x70;
static grub_uint32_t
map_char (grub_uint32_t c)
{
if (c > 0x7f)
{
/* Map some unicode characters to the VGA font, if possible. */
switch (c)
{
case 0x2190: /* left arrow */
c = 0x1b;
break;
case 0x2191: /* up arrow */
c = 0x18;
break;
case 0x2192: /* right arrow */
c = 0x1a;
break;
case 0x2193: /* down arrow */
c = 0x19;
break;
case 0x2501: /* horizontal line */
c = 0xc4;
break;
case 0x2503: /* vertical line */
c = 0xb3;
break;
case 0x250F: /* upper-left corner */
c = 0xda;
break;
case 0x2513: /* upper-right corner */
c = 0xbf;
break;
case 0x2517: /* lower-left corner */
c = 0xc0;
break;
case 0x251B: /* lower-right corner */
c = 0xd9;
break;
default:
c = '?';
break;
}
}
return c;
}
void
grub_console_putchar (grub_uint32_t c)
{
grub_console_real_putchar (map_char (c));
}
grub_ssize_t
grub_console_getcharwidth (grub_uint32_t c __attribute__ ((unused)))
{
/* For now, every printable character has the width 1. */
return 1;
}
grub_uint16_t
grub_console_getwh (void)
{
return (80 << 8) | 25;
}
void
grub_console_setcolorstate (grub_term_color_state state)
{
switch (state) {
case GRUB_TERM_COLOR_STANDARD:
grub_console_cur_color = grub_console_standard_color;
break;
case GRUB_TERM_COLOR_NORMAL:
grub_console_cur_color = grub_console_normal_color;
break;
case GRUB_TERM_COLOR_HIGHLIGHT:
grub_console_cur_color = grub_console_highlight_color;
break;
default:
break;
}
}
void
grub_console_setcolor (grub_uint8_t normal_color, grub_uint8_t highlight_color)
{
grub_console_normal_color = normal_color;
grub_console_highlight_color = highlight_color;
}
void
grub_console_getcolor (grub_uint8_t *normal_color, grub_uint8_t *highlight_color)
{
*normal_color = grub_console_normal_color;
*highlight_color = grub_console_highlight_color;
}