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/* Welcome2L - Welcome to Linux, ANSI boot logo
* Copyright (c)1998-1999 Jean-Marc Jacquet <jm@littleigloo.org>
* Little Igloo Org http://www.LittleIgloo.org
*
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <string.h>
char WSCREEN[10000];
static int old_bg, old_fg, old_attr;
void ANSI_screen_init (void) {
strcpy (WSCREEN, "\033[m\033]R\033]R\033[H\033[J\033[0;10;1;11m");
old_bg = old_fg = old_attr = -1;
}
void ANSI_screen_close (void) {
strcat (WSCREEN, "\033[10m\033[m");
}
int ANSI_col_convert (int col) {
col = col & 7;
switch (col)
{
case 1:
col = 4;
break;
case 3:
col = 6;
break;
case 4:
col = 1;
break;
case 6:
col = 3;
break;
}
return col;
}
void ANSI_do_color (unsigned char col) {
extern char NO_BLINK;
int this_bg, this_fg, this_attr;
char buf[25];
this_fg = ANSI_col_convert (col);
this_bg = ANSI_col_convert (col >> 4);
if ((col & 15) > 7)
this_attr = 1;
else
this_attr = 0;
if (((col >> 4) & 15) > 7) {
if (NO_BLINK)
this_attr = 1;
else
this_attr = 5;
}
if ((this_attr == old_attr) && (this_bg == old_bg) && (this_fg == old_fg))
return;
if (this_attr == old_attr)
{
if ((this_bg != old_bg) && (this_fg != old_fg))
sprintf (buf, "\033[3%i;4%im", this_fg, this_bg);
else
{
if (this_bg != old_bg)
sprintf (buf, "\033[4%im", this_bg);
else
sprintf (buf, "\033[3%im", this_fg);
}
}
else
{
if (this_attr)
{
if (old_attr != 5)
sprintf (buf, "\033[%i", this_attr);
else
sprintf (buf, "\033[0;1");
if (this_attr == 5)
if ((col & 15) > 7)
sprintf (buf, "\033[1;5");
if (this_fg != old_fg)
sprintf (buf + strlen(buf), ";3%i", this_fg);
if (this_bg != old_bg)
sprintf (buf + strlen(buf), ";4%i", this_bg);
strcat (buf, "m");
}
else
sprintf (buf, "\033[0;3%i;4%im", this_fg, this_bg);
}
strcat (WSCREEN, buf);
old_attr = this_attr;
old_bg = this_bg;
old_fg = this_fg;
}
void ANSI_do_char (unsigned char c) {
switch (c)
{
case 22:
c = 254;
break;
case 0x0F:
c = 14;
}
const char buf[] = { c, '\0' };
strcat (WSCREEN, buf);
}
void ANSI_pos (int x, int y) {
sprintf (WSCREEN + strlen(WSCREEN), "\033[%i;%iH", y, x);
}
void ANSI_save_pos (void) {
strcat (WSCREEN, "\033[s");
}
void ANSI_restore_pos (void) {
strcat (WSCREEN, "\033[u");
}
/* EOF */
/* vim: set tabstop=2 softtabstop=0 shiftwidth=2 expandtab: */
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