1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1998 Dag-Erling Coïdan Smørgrav 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in this position and unchanged. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/syslog.h> 38 #include <sys/consio.h> 39 #include <sys/fbio.h> 40 41 #include <dev/fb/fbreg.h> 42 #include <dev/fb/splashreg.h> 43 #include <dev/syscons/syscons.h> 44 45 #define SAVER_NAME "logo_saver" 46 47 #define SET_ORIGIN(adp, o) do { \ 48 int oo = o; \ 49 if (oo != last_origin) \ 50 vidd_set_win_org(adp, last_origin = oo); \ 51 } while (0) 52 53 extern unsigned int logo_w; 54 extern unsigned int logo_h; 55 extern unsigned char logo_pal[]; 56 extern unsigned char logo_img[]; 57 extern unsigned int logo_img_size; 58 59 static u_char *vid; 60 static int banksize, scrmode, bpsl, scrw, scrh; 61 static int blanked; 62 63 static void 64 logo_blit(video_adapter_t *adp, int x, int y) 65 { 66 int d, l, o, p; 67 int last_origin = -1; 68 69 for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize) 70 o += banksize; 71 SET_ORIGIN(adp, o); 72 73 for (d = 0; d < logo_img_size; d += logo_w) { 74 if (p + logo_w < banksize) { 75 bcopy(logo_img + d, vid + p, logo_w); 76 p += bpsl; 77 } else if (p < banksize) { 78 l = banksize - p; 79 bcopy(logo_img + d, vid + p, l); 80 SET_ORIGIN(adp, (o += banksize)); 81 bcopy(logo_img + d + l, vid, logo_w - l); 82 p += bpsl - banksize; 83 } else { 84 p -= banksize; 85 SET_ORIGIN(adp, (o += banksize)); 86 bcopy(logo_img + d, vid + p, logo_w); 87 p += bpsl; 88 } 89 } 90 } 91 92 static void 93 logo_update(video_adapter_t *adp) 94 { 95 static int xpos = 0, ypos = 0; 96 static int xinc = 1, yinc = 1; 97 98 /* Turn when you hit the edge */ 99 if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0)) 100 xinc = -xinc; 101 if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0)) 102 yinc = -yinc; 103 xpos += xinc; 104 ypos += yinc; 105 106 /* XXX Relies on margin around logo to erase trail */ 107 logo_blit(adp, xpos, ypos); 108 } 109 110 static int 111 logo_saver(video_adapter_t *adp, int blank) 112 { 113 int pl; 114 115 if (blank) { 116 /* switch to graphics mode */ 117 if (blanked <= 0) { 118 pl = splhigh(); 119 vidd_set_mode(adp, scrmode); 120 vidd_load_palette(adp, logo_pal); 121 vidd_set_border(adp, 0); 122 blanked++; 123 vid = (u_char *)adp->va_window; 124 banksize = adp->va_window_size; 125 bpsl = adp->va_line_width; 126 splx(pl); 127 vidd_clear(adp); 128 } 129 logo_update(adp); 130 } else { 131 blanked = 0; 132 } 133 return (0); 134 } 135 136 static int 137 logo_init(video_adapter_t *adp) 138 { 139 video_info_t info; 140 141 if (!vidd_get_info(adp, M_VESA_CG800x600, &info)) { 142 scrmode = M_VESA_CG800x600; 143 } else if (!vidd_get_info(adp, M_VGA_CG320, &info)) { 144 scrmode = M_VGA_CG320; 145 } else { 146 log(LOG_NOTICE, 147 "%s: the console does not support M_VGA_CG320\n", 148 SAVER_NAME); 149 return (ENODEV); 150 } 151 152 scrw = info.vi_width; 153 scrh = info.vi_height; 154 155 return (0); 156 } 157 158 static int 159 logo_term(video_adapter_t *adp) 160 { 161 return (0); 162 } 163 164 static scrn_saver_t logo_module = { 165 SAVER_NAME, 166 logo_init, 167 logo_term, 168 logo_saver, 169 NULL 170 }; 171 172 #ifdef BEASTIE_LOGO 173 SAVER_MODULE(beastie_saver, logo_module); 174 #else 175 SAVER_MODULE(logo_saver, logo_module); 176 #endif 177