logo_saver.c revision 48104
142120Sdes/*- 242120Sdes * Copyright (c) 1998 Dag-Erling Co�dan Sm�rgrav 342120Sdes * All rights reserved. 442120Sdes * 542120Sdes * Redistribution and use in source and binary forms, with or without 642120Sdes * modification, are permitted provided that the following conditions 742120Sdes * are met: 842120Sdes * 1. Redistributions of source code must retain the above copyright 942120Sdes * notice, this list of conditions and the following disclaimer 1042120Sdes * in this position and unchanged. 1142120Sdes * 2. Redistributions in binary form must reproduce the above copyright 1242120Sdes * notice, this list of conditions and the following disclaimer in the 1342120Sdes * documentation and/or other materials provided with the distribution. 1442120Sdes * 3. The name of the author may not be used to endorse or promote products 1542120Sdes * derived from this software without specific prior written permission 1642120Sdes * 1742120Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1842120Sdes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1942120Sdes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2042120Sdes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2142120Sdes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2242120Sdes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2342120Sdes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2442120Sdes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2542120Sdes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2642120Sdes * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2742120Sdes * 2848104Syokota * $Id: logo_saver.c,v 1.6 1999/04/12 13:34:57 des Exp $ 2942120Sdes */ 3042120Sdes 3142120Sdes#include <sys/param.h> 3242120Sdes#include <sys/systm.h> 3342120Sdes#include <sys/kernel.h> 3442120Sdes#include <sys/module.h> 3542120Sdes#include <sys/syslog.h> 3648104Syokota#include <sys/consio.h> 3748104Syokota#include <sys/fbio.h> 3842120Sdes 3948104Syokota#include <dev/fb/fbreg.h> 4048104Syokota#include <dev/fb/splashreg.h> 4148104Syokota#include <dev/syscons/syscons.h> 4242120Sdes 4342120Sdesstatic u_char *vid; 4443673Sdesstatic int banksize, scrmode, bpsl, scrw, scrh; 4542504Syokotastatic int blanked; 4642120Sdes 4742120Sdes#include "logo.c" 4842120Sdes 4942120Sdesstatic void 5042504Syokotalogo_blit(video_adapter_t *adp, int x, int y) 5142120Sdes{ 5242120Sdes int d, l, o, p; 5342120Sdes 5443673Sdes for (o = 0, p = y * bpsl + x; p > banksize; p -= banksize) 5542120Sdes o += banksize; 5642504Syokota set_origin(adp, o); 5742120Sdes 5842120Sdes for (d = 0; d < sizeof logo_img; d += logo_w) { 5942120Sdes if (p + logo_w < banksize) { 6042120Sdes bcopy(logo_img + d, vid + p, logo_w); 6143673Sdes p += bpsl; 6242120Sdes } else if (p < banksize) { 6342120Sdes l = banksize - p; 6442120Sdes bcopy(logo_img + d, vid + p, l); 6542504Syokota set_origin(adp, (o += banksize)); 6642120Sdes bcopy(logo_img + d + l, vid, logo_w - l); 6743673Sdes p += bpsl - banksize; 6842120Sdes } else { 6942120Sdes p -= banksize; 7042504Syokota set_origin(adp, (o += banksize)); 7142120Sdes bcopy(logo_img + d, vid + p, logo_w); 7243673Sdes p += bpsl; 7342120Sdes } 7442120Sdes } 7542120Sdes} 7642120Sdes 7742120Sdesstatic void 7842504Syokotalogo_update(video_adapter_t *adp) 7942120Sdes{ 8042120Sdes static int xpos = 0, ypos = 0; 8142120Sdes static int xinc = 1, yinc = 1; 8242120Sdes 8342120Sdes /* Turn when you hit the edge */ 8442236Sdes if ((xpos + logo_w + xinc > scrw) || (xpos + xinc < 0)) 8542236Sdes xinc = -xinc; 8642236Sdes if ((ypos + logo_h + yinc > scrh) || (ypos + yinc < 0)) 8742236Sdes yinc = -yinc; 8842236Sdes xpos += xinc; 8942236Sdes ypos += yinc; 9042120Sdes 9142120Sdes /* XXX Relies on margin around logo to erase trail */ 9242504Syokota logo_blit(adp, xpos, ypos); 9342120Sdes} 9442120Sdes 9542504Syokotastatic int 9642504Syokotalogo_saver(video_adapter_t *adp, int blank) 9742120Sdes{ 9842236Sdes int i, pl; 9942120Sdes 10042120Sdes if (blank) { 10142120Sdes /* switch to graphics mode */ 10242504Syokota if (blanked <= 0) { 10342120Sdes pl = splhigh(); 10445616Sdes set_video_mode(adp, scrmode); 10545616Sdes load_palette(adp, logo_pal); 10645616Sdes#if 0 /* XXX conflict */ 10745616Sdes set_border(adp, 0); 10845616Sdes#endif 10942504Syokota blanked++; 11042504Syokota vid = (u_char *)adp->va_window; 11148104Syokota banksize = adp->va_window_size; 11243673Sdes bpsl = adp->va_line_width; 11342120Sdes splx(pl); 11443673Sdes for (i = 0; i < bpsl*scrh; i += banksize) { 11542504Syokota set_origin(adp, i); 11642236Sdes bzero(vid, banksize); 11742236Sdes } 11842120Sdes } 11942504Syokota logo_update(adp); 12042120Sdes } else { 12142504Syokota blanked = 0; 12242120Sdes } 12342504Syokota return 0; 12442120Sdes} 12542120Sdes 12642120Sdesstatic int 12742504Syokotalogo_init(video_adapter_t *adp) 12842120Sdes{ 12942120Sdes video_info_t info; 13042236Sdes 13142504Syokota if (!get_mode_info(adp, M_VESA_CG800x600, &info)) { 13242236Sdes scrmode = M_VESA_CG800x600; 13342504Syokota } else if (!get_mode_info(adp, M_VGA_CG320, &info)) { 13442236Sdes scrmode = M_VGA_CG320; 13542236Sdes } else { 13642236Sdes log(LOG_NOTICE, "logo_saver: no suitable graphics mode\n"); 13742120Sdes return ENODEV; 13842120Sdes } 13942120Sdes 14042236Sdes scrw = info.vi_width; 14142236Sdes scrh = info.vi_height; 14242504Syokota blanked = 0; 14342236Sdes 14442504Syokota return 0; 14542120Sdes} 14642120Sdes 14742120Sdesstatic int 14842504Syokotalogo_term(video_adapter_t *adp) 14942120Sdes{ 15042504Syokota return 0; 15142120Sdes} 15242120Sdes 15342504Syokotastatic scrn_saver_t logo_module = { 15442504Syokota "logo_saver", logo_init, logo_term, logo_saver, NULL, 15542504Syokota}; 15642504Syokota 15742504SyokotaSAVER_MODULE(logo_saver, logo_module); 158