1 /*- 2 * Copyright (c) 1998 Dag-Erling Co�dan Sm�rgrav 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 * in this position and unchanged. 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: src/sys/modules/syscons/logo/logo_saver.c,v 1.8 1999/08/28 00:47:51 peter Exp $ 29 * $DragonFly: src/sys/dev/misc/syscons/logo/logo_saver.c,v 1.3 2003/08/15 08:32:30 dillon Exp $ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/syslog.h> 37 #include <sys/consio.h> 38 #include <sys/fbio.h> 39 40 #include <dev/video/fb/fbreg.h> 41 #include <dev/video/fb/splashreg.h> 42 #include "../syscons.h" 43 44 static u_char *vid; 45 static int banksize, scrmode, bpsl, scrw, scrh; 46 static int blanked; 47 48 #include "logo.c" 49 50 static void 51 logo_blit(video_adapter_t *adp, int x, int y) 52 { 53 int d, l, o, p; 54 55 for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize) 56 o += banksize; 57 set_origin(adp, o); 58 59 for (d = 0; d < sizeof logo_img; d += logo_w) { 60 if (p + logo_w < banksize) { 61 bcopy(logo_img + d, vid + p, logo_w); 62 p += bpsl; 63 } else if (p < banksize) { 64 l = banksize - p; 65 bcopy(logo_img + d, vid + p, l); 66 set_origin(adp, (o += banksize)); 67 bcopy(logo_img + d + l, vid, logo_w - l); 68 p += bpsl - banksize; 69 } else { 70 p -= banksize; 71 set_origin(adp, (o += banksize)); 72 bcopy(logo_img + d, vid + p, logo_w); 73 p += bpsl; 74 } 75 } 76 } 77 78 static void 79 logo_update(video_adapter_t *adp) 80 { 81 static int xpos = 0, ypos = 0; 82 static int xinc = 1, yinc = 1; 83 84 /* Turn when you hit the edge */ 85 if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0)) 86 xinc = -xinc; 87 if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0)) 88 yinc = -yinc; 89 xpos += xinc; 90 ypos += yinc; 91 92 /* XXX Relies on margin around logo to erase trail */ 93 logo_blit(adp, xpos, ypos); 94 } 95 96 static int 97 logo_saver(video_adapter_t *adp, int blank) 98 { 99 int i, pl; 100 101 if (blank) { 102 /* switch to graphics mode */ 103 if (blanked <= 0) { 104 pl = splhigh(); 105 set_video_mode(adp, scrmode); 106 load_palette(adp, logo_pal); 107 #if 0 /* XXX conflict */ 108 set_border(adp, 0); 109 #endif 110 blanked++; 111 vid = (u_char *)adp->va_window; 112 banksize = adp->va_window_size; 113 bpsl = adp->va_line_width; 114 splx(pl); 115 for (i = 0; i < bpsl*scrh; i += banksize) { 116 set_origin(adp, i); 117 bzero(vid, banksize); 118 } 119 } 120 logo_update(adp); 121 } else { 122 blanked = 0; 123 } 124 return 0; 125 } 126 127 static int 128 logo_init(video_adapter_t *adp) 129 { 130 video_info_t info; 131 132 if (!get_mode_info(adp, M_VESA_CG800x600, &info)) { 133 scrmode = M_VESA_CG800x600; 134 } else if (!get_mode_info(adp, M_VGA_CG320, &info)) { 135 scrmode = M_VGA_CG320; 136 } else { 137 log(LOG_NOTICE, "logo_saver: no suitable graphics mode\n"); 138 return ENODEV; 139 } 140 141 scrw = info.vi_width; 142 scrh = info.vi_height; 143 blanked = 0; 144 145 return 0; 146 } 147 148 static int 149 logo_term(video_adapter_t *adp) 150 { 151 return 0; 152 } 153 154 static scrn_saver_t logo_module = { 155 "logo_saver", logo_init, logo_term, logo_saver, NULL, 156 }; 157 158 SAVER_MODULE(logo_saver, logo_module); 159