mirror of https://github.com/ipxe/ipxe.git
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
#include <curses.h>
|
|
#include <console.h>
|
|
|
|
unsigned short _COLS = 80;
|
|
unsigned short _LINES = 25;
|
|
|
|
static void ansiscr_init ( struct _curses_screen *scr ) {
|
|
/* Reset terminal attributes and clear screen */
|
|
scr->attrs = 0;
|
|
scr->curs_x = 0;
|
|
scr->curs_y = 0;
|
|
printf ( "\033[0m\033[2J" );
|
|
}
|
|
|
|
static void ansiscr_exit ( struct _curses_screen *scr __unused ) {
|
|
}
|
|
|
|
static void ansiscr_movetoyx ( struct _curses_screen *scr,
|
|
unsigned int y, unsigned int x ) {
|
|
if ( ( x != scr->curs_x ) || ( y != scr->curs_y ) ) {
|
|
/* ANSI escape sequence to update cursor position */
|
|
printf ( "\033[%d;%dH", ( y + 1 ), ( x + 1 ) );
|
|
scr->curs_x = x;
|
|
scr->curs_y = y;
|
|
}
|
|
}
|
|
|
|
static void ansiscr_putc ( struct _curses_screen *scr, chtype c ) {
|
|
unsigned int character = ( c & A_CHARTEXT );
|
|
attr_t attrs = ( c & ( A_ATTRIBUTES | A_COLOR ) );
|
|
int bold = ( attrs & A_BOLD );
|
|
attr_t cpair = PAIR_NUMBER ( attrs );
|
|
short fcol;
|
|
short bcol;
|
|
|
|
/* Update attributes if changed */
|
|
if ( attrs != scr->attrs ) {
|
|
scr->attrs = attrs;
|
|
pair_content ( cpair, &fcol, &bcol );
|
|
/* ANSI escape sequence to update character attributes */
|
|
printf ( "\033[0;%d;3%d;4%dm", ( bold ? 1 : 22 ), fcol, bcol );
|
|
}
|
|
|
|
/* Print the actual character */
|
|
putchar ( character );
|
|
|
|
/* Update expected cursor position */
|
|
if ( ++(scr->curs_x) == _COLS ) {
|
|
scr->curs_x = 0;
|
|
++scr->curs_y;
|
|
}
|
|
}
|
|
|
|
static int ansiscr_getc ( struct _curses_screen *scr __unused ) {
|
|
return getchar();
|
|
}
|
|
|
|
static bool ansiscr_peek ( struct _curses_screen *scr __unused ) {
|
|
return iskey();
|
|
}
|
|
|
|
SCREEN _ansi_screen = {
|
|
.init = ansiscr_init,
|
|
.exit = ansiscr_exit,
|
|
.movetoyx = ansiscr_movetoyx,
|
|
.putc = ansiscr_putc,
|
|
.getc = ansiscr_getc,
|
|
.peek = ansiscr_peek,
|
|
};
|