1 /*- 2 * Copyright (c) 1998 Dag-Erling Coïdan Smørgrav 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 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/syslog.h> 36 #include <sys/consio.h> 37 #include <sys/fbio.h> 38 #include <sys/thread.h> 39 #include <sys/thread2.h> 40 41 #include <dev/video/fb/fbreg.h> 42 #include <dev/video/fb/splashreg.h> 43 #include "../syscons.h" 44 45 static u_char *vid; 46 static int banksize, scrmode, bpsl, scrw, scrh; 47 static int blanked; 48 49 #include "logo.c" 50 51 static void 52 logo_blit(video_adapter_t *adp, int x, int y) 53 { 54 int d, l, o, p; 55 56 for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize) 57 o += banksize; 58 set_origin(adp, o); 59 60 for (d = 0; d < sizeof logo_img; d += logo_w) { 61 if (p + logo_w < banksize) { 62 bcopy(logo_img + d, vid + p, logo_w); 63 p += bpsl; 64 } else if (p < banksize) { 65 l = banksize - p; 66 bcopy(logo_img + d, vid + p, l); 67 set_origin(adp, (o += banksize)); 68 bcopy(logo_img + d + l, vid, logo_w - l); 69 p += bpsl - banksize; 70 } else { 71 p -= banksize; 72 set_origin(adp, (o += banksize)); 73 bcopy(logo_img + d, vid + p, logo_w); 74 p += bpsl; 75 } 76 } 77 } 78 79 static void 80 logo_update(video_adapter_t *adp) 81 { 82 static int xpos = 0, ypos = 0; 83 static int xinc = 1, yinc = 1; 84 85 /* Turn when you hit the edge */ 86 if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0)) 87 xinc = -xinc; 88 if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0)) 89 yinc = -yinc; 90 xpos += xinc; 91 ypos += yinc; 92 93 /* XXX Relies on margin around logo to erase trail */ 94 logo_blit(adp, xpos, ypos); 95 } 96 97 static int 98 logo_saver(video_adapter_t *adp, int blank) 99 { 100 int i; 101 102 if (blank) { 103 /* switch to graphics mode */ 104 if (blanked <= 0) { 105 crit_enter(); 106 set_video_mode(adp, scrmode); 107 load_palette(adp, logo_pal); 108 #if 0 /* XXX conflict */ 109 set_border(adp, 0); 110 #endif 111 blanked++; 112 vid = (u_char *)adp->va_window; 113 banksize = adp->va_window_size; 114 bpsl = adp->va_line_width; 115 crit_exit(); 116 for (i = 0; i < bpsl*scrh; i += banksize) { 117 set_origin(adp, i); 118 bzero(vid, banksize); 119 } 120 } 121 logo_update(adp); 122 } else { 123 blanked = 0; 124 } 125 return 0; 126 } 127 128 static int 129 logo_init(video_adapter_t *adp) 130 { 131 video_info_t info; 132 133 if (!get_mode_info(adp, M_VGA_CG320, &info)) { 134 scrmode = M_VGA_CG320; 135 } else { 136 log(LOG_NOTICE, "logo_saver: no suitable graphics mode\n"); 137 return ENODEV; 138 } 139 140 scrw = info.vi_width; 141 scrh = info.vi_height; 142 blanked = 0; 143 144 return 0; 145 } 146 147 static int 148 logo_term(video_adapter_t *adp) 149 { 150 return 0; 151 } 152 153 static scrn_saver_t logo_module = { 154 "logo_saver", logo_init, logo_term, logo_saver, NULL, 155 }; 156 157 SAVER_MODULE(logo_saver, logo_module); 158