1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1998 Dag-Erling 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 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 39 #include <dev/fb/fbreg.h> 40 #include <dev/fb/splashreg.h> 41 #include <dev/syscons/syscons.h> 42 43 #define SAVER_NAME "logo_saver" 44 45 #define SET_ORIGIN(adp, o) do { \ 46 int oo = o; \ 47 if (oo != last_origin) \ 48 vidd_set_win_org(adp, last_origin = oo); \ 49 } while (0) 50 51 extern unsigned int logo_w; 52 extern unsigned int logo_h; 53 extern unsigned char logo_pal[]; 54 extern unsigned char logo_img[]; 55 extern unsigned int logo_img_size; 56 57 static u_char *vid; 58 static int banksize, scrmode, bpsl, scrw, scrh; 59 static int blanked; 60 61 static void 62 logo_blit(video_adapter_t *adp, int x, int y) 63 { 64 int d, l, o, p; 65 int last_origin = -1; 66 67 for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize) 68 o += banksize; 69 SET_ORIGIN(adp, o); 70 71 for (d = 0; d < logo_img_size; d += logo_w) { 72 if (p + logo_w < banksize) { 73 bcopy(logo_img + d, vid + p, logo_w); 74 p += bpsl; 75 } else if (p < banksize) { 76 l = banksize - p; 77 bcopy(logo_img + d, vid + p, l); 78 SET_ORIGIN(adp, (o += banksize)); 79 bcopy(logo_img + d + l, vid, logo_w - l); 80 p += bpsl - banksize; 81 } else { 82 p -= banksize; 83 SET_ORIGIN(adp, (o += banksize)); 84 bcopy(logo_img + d, vid + p, logo_w); 85 p += bpsl; 86 } 87 } 88 } 89 90 static void 91 logo_update(video_adapter_t *adp) 92 { 93 static int xpos = 0, ypos = 0; 94 static int xinc = 1, yinc = 1; 95 96 /* Turn when you hit the edge */ 97 if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0)) 98 xinc = -xinc; 99 if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0)) 100 yinc = -yinc; 101 xpos += xinc; 102 ypos += yinc; 103 104 /* XXX Relies on margin around logo to erase trail */ 105 logo_blit(adp, xpos, ypos); 106 } 107 108 static int 109 logo_saver(video_adapter_t *adp, int blank) 110 { 111 int pl; 112 113 if (blank) { 114 /* switch to graphics mode */ 115 if (blanked <= 0) { 116 pl = splhigh(); 117 vidd_set_mode(adp, scrmode); 118 vidd_load_palette(adp, logo_pal); 119 vidd_set_border(adp, 0); 120 blanked++; 121 vid = (u_char *)adp->va_window; 122 banksize = adp->va_window_size; 123 bpsl = adp->va_line_width; 124 splx(pl); 125 vidd_clear(adp); 126 } 127 logo_update(adp); 128 } else { 129 blanked = 0; 130 } 131 return (0); 132 } 133 134 static int 135 logo_init(video_adapter_t *adp) 136 { 137 video_info_t info; 138 139 if (!vidd_get_info(adp, M_VESA_CG800x600, &info)) { 140 scrmode = M_VESA_CG800x600; 141 } else if (!vidd_get_info(adp, M_VGA_CG320, &info)) { 142 scrmode = M_VGA_CG320; 143 } else { 144 log(LOG_NOTICE, 145 "%s: the console does not support M_VGA_CG320\n", 146 SAVER_NAME); 147 return (ENODEV); 148 } 149 150 scrw = info.vi_width; 151 scrh = info.vi_height; 152 153 return (0); 154 } 155 156 static int 157 logo_term(video_adapter_t *adp) 158 { 159 return (0); 160 } 161 162 static scrn_saver_t logo_module = { 163 SAVER_NAME, 164 logo_init, 165 logo_term, 166 logo_saver, 167 NULL 168 }; 169 170 #ifdef BEASTIE_LOGO 171 SAVER_MODULE(beastie_saver, logo_module); 172 #else 173 SAVER_MODULE(logo_saver, logo_module); 174 #endif 175