1 /*- 2 * Copyright (c) 1995-1998 Søren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/consio.h> 36 #include <sys/fbio.h> 37 38 #include <machine/pc/display.h> 39 40 #include <dev/fb/fbreg.h> 41 #include <dev/fb/splashreg.h> 42 #include <dev/syscons/syscons.h> 43 44 #define NUM_STARS 50 45 46 static int blanked; 47 48 /* 49 * Alternate saver that got its inspiration from a well known utility 50 * package for an inferior^H^H^H^H^H^Hfamous OS. 51 */ 52 static int 53 star_saver(video_adapter_t *adp, int blank) 54 { 55 sc_softc_t *sc; 56 scr_stat *scp; 57 int cell, i; 58 static u_char pattern[] = {"...........++++*** "}; 59 static char color16[] = {FG_DARKGREY, FG_LIGHTGREY, 60 FG_WHITE, FG_LIGHTCYAN}; 61 static u_short stars[NUM_STARS][2]; 62 63 sc = sc_find_softc(adp, NULL); 64 if (sc == NULL) 65 return EAGAIN; 66 scp = sc->cur_scp; 67 68 if (blank) { 69 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 70 return EAGAIN; 71 if (!blanked) { 72 /* clear the screen and set the border color */ 73 sc_vtb_clear(&scp->scr, sc->scr_map[0x20], 74 (FG_LIGHTGREY | BG_BLACK) << 8); 75 vidd_set_hw_cursor(adp, -1, -1); 76 sc_set_border(scp, 0); 77 blanked = TRUE; 78 for(i=0; i<NUM_STARS; i++) { 79 stars[i][0] = 80 random() % (scp->xsize*scp->ysize); 81 stars[i][1] = 0; 82 } 83 } 84 cell = random() % NUM_STARS; 85 sc_vtb_putc(&scp->scr, stars[cell][0], 86 sc->scr_map[pattern[stars[cell][1]]], 87 color16[random()%sizeof(color16)] << 8); 88 if ((stars[cell][1]+=(random()%4)) >= sizeof(pattern)-1) { 89 stars[cell][0] = random() % (scp->xsize*scp->ysize); 90 stars[cell][1] = 0; 91 } 92 } else 93 blanked = FALSE; 94 95 return 0; 96 } 97 98 static int 99 star_init(video_adapter_t *adp) 100 { 101 blanked = FALSE; 102 return 0; 103 } 104 105 static int 106 star_term(video_adapter_t *adp) 107 { 108 return 0; 109 } 110 111 static scrn_saver_t star_module = { 112 "star_saver", star_init, star_term, star_saver, NULL, 113 }; 114 115 SAVER_MODULE(star_saver, star_module); 116