/*- * Copyright (c) 1997 Sandro Sigala, Brescia, Italy. * Copyright (c) 1997 Chris Shenton * Copyright (c) 1995 S ren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer * in this position and unchanged. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $Id: daemon_saver.c,v 1.5 1997/06/24 12:43:18 yokota Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #define CONSOLE_VECT(x, y) \ *((u_short*)(Crtat + (y)*cur_console->xsize + (x))) #define DAEMON_MAX_WIDTH 32 #define DAEMON_MAX_HEIGHT 19 MOD_MISC(daemon_saver); static char *message; static int messagelen; /* Who is the author of this ASCII pic? */ static char *daemon_pic[] = { " , ,", " /( )`", " \\ \\___ / |", " /- _ `-/ '", " (/\\/ \\ \\ /\\", " / / | ` \\", " O O ) / |", " `-^--'`< '", " (_.) _ ) /", " `.___/` /", " `-----' /", "<----. __ / __ \\", "<----|====O)))==) \\) /====", "<----' `--' `.__,' \\", " | |", " \\ / /\\", " ______( (_ / \\______/", " ,' ,-----' |", " `--{__________)", NULL }; static char *daemon_attr[] = { " R R", " RR RR", " R RRRR R R", " RR W RRR R", " RWWW W R RR", " W W W R R", " B B W R R", " WWWWWWRR R", " RRRR R R R", " RRRRRRR R", " RRRRRRR R", "YYYYYY RR R RR R", "YYYYYYYYYYRRRRYYR RR RYYYY", "YYYYYY RRRR RRRRRR R", " R R", " R R RR", " CCCCCCR RR R RRRRRRRR", " CC CCCCCCC C", " CCCCCCCCCCCCCCC", NULL }; /* * Reverse a graphics character, or return unaltered if no mirror; * should do alphanumerics too, but I'm too lazy. */ static char xflip_symbol(char symbol) { static const char lchars[] = "`'(){}[]\\/<>"; static const char rchars[] = "'`)(}{][/\\><"; int pos; for (pos = 0; lchars[pos] != '\0'; pos++) if (lchars[pos] == symbol) return rchars[pos]; return symbol; } static void draw_daemon(int xpos, int ypos, int dxdir) { int x, y; int attr; for (y = 0; daemon_pic[y] != NULL; y++) for (x = 0; daemon_pic[y][x] != '\0'; x++) { switch (daemon_attr[y][x]) { case 'R': attr = (FG_LIGHTRED|BG_BLACK)<<8; break; case 'Y': attr = (FG_YELLOW|BG_BLACK)<<8; break; case 'B': attr = (FG_LIGHTBLUE|BG_BLACK)<<8; break; case 'W': attr = (FG_LIGHTGREY|BG_BLACK)<<8; break; case 'C': attr = (FG_CYAN|BG_BLACK)<<8; break; default: attr = (FG_WHITE|BG_BLACK)<<8; break; } if (dxdir < 0) { /* Moving left */ CONSOLE_VECT(xpos + x, ypos + y) = scr_map[daemon_pic[y][x]]|attr; } else { /* Moving right */ CONSOLE_VECT(xpos + DAEMON_MAX_WIDTH - x - 1, ypos + y) = scr_map[xflip_symbol(daemon_pic[y][x])]|attr; } } } static void draw_string(int xpos, int ypos, char *s, int len) { int x; for (x = 0; x < len; x++) CONSOLE_VECT(xpos + x, ypos) = scr_map[s[x]]|(FG_LIGHTGREEN|BG_BLACK)<<8; } static void daemon_saver(int blank) { static int txpos = 10, typos = 10; static int txdir = -1, tydir = -1; static int dxpos = 0, dypos = 0; static int dxdir = 1, dydir = 1; static int moved_daemon = 0; scr_stat *scp = cur_console; if (blank) { if (scrn_blanked++ < 2) return; fillw((FG_LIGHTGREY|BG_BLACK)<<8|scr_map[0x20], Crtat, scp->xsize * scp->ysize); set_border(0); scrn_blanked = 1; if (++moved_daemon) { if (dxdir > 0) { if (dxpos == scp->xsize - DAEMON_MAX_WIDTH) dxdir = -1; } else { if (dxpos == 0) dxdir = 1; } if (dydir > 0) { if (dypos == scp->ysize - DAEMON_MAX_HEIGHT) dydir = -1; } else { if (dypos == 0) dydir = 1; } moved_daemon = -1; dxpos += dxdir; dypos += dydir; } if (txdir > 0) { if (txpos == scp->xsize - messagelen) txdir = -1; } else { if (txpos == 0) txdir = 1; } if (tydir > 0) { if (typos == scp->ysize - 1) tydir = -1; } else { if (typos == 0) tydir = 1; } txpos += txdir; typos += tydir; draw_daemon(dxpos, dypos, dxdir); draw_string(txpos, typos, (char *)message, messagelen); } else { if (scrn_blanked > 0) { set_border(scp->border); scrn_blanked = 0; } } } static int daemon_saver_load(struct lkm_table *lkmtp, int cmd) { int err; messagelen = strlen(hostname) + 3 + strlen(ostype) + 1 + strlen(osrelease); message = malloc(messagelen + 1, M_DEVBUF, M_WAITOK); sprintf(message, "%s - %s %s", hostname, ostype, osrelease); err = add_scrn_saver(daemon_saver); if (err != 0) free(message, M_DEVBUF); return err; } static int daemon_saver_unload(struct lkm_table *lkmtp, int cmd) { int err; err = remove_scrn_saver(daemon_saver); if (err == 0) free(message, M_DEVBUF); return err; } int daemon_saver_mod(struct lkm_table *lkmtp, int cmd, int ver) { MOD_DISPATCH(daemon_saver, lkmtp, cmd, ver, daemon_saver_load, daemon_saver_unload, lkm_nullcmd); }