Current Path : /sys/dev/fb/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/fb/splash_txt.c |
/*- * Copyright (c) 1999 Michael Smith <msmith@freebsd.org> * Copyright (c) 1999 Kazutaka YOKOTA <yokota@freebsd.org> * Copyright (c) 2005 Antony Mawer <antony@mawer.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/dev/fb/splash_txt.c 229994 2012-01-12 00:02:14Z eadler $ */ #include <sys/param.h> #include <sys/systm.h> #include <sys/module.h> #include <sys/kernel.h> #include <sys/consio.h> #include <sys/fbio.h> #include <machine/pc/display.h> #include <dev/fb/fbreg.h> #include <dev/fb/splashreg.h> #include <dev/syscons/syscons.h> static int splash_on = FALSE; static int txt_init(video_adapter_t *adp); static int txt_end(video_adapter_t *adp); static int txt_splash(video_adapter_t * adp, const int on); /* These are rows by columns of the text-mode display device. */ #define BIN_IMAGE_WIDTH 80 #define BIN_IMAGE_HEIGHT 25 static splash_decoder_t txt_decoder = { .name = "splash_txt", .init = txt_init, .term = txt_end, .splash = txt_splash, .data_type = SPLASH_IMAGE, }; SPLASH_DECODER(splash_txt, txt_decoder); static void draw_text_splash(sc_softc_t *sc) { u_int x, y; u_char ch, attr; u_char *pdata = txt_decoder.data; /* Init failed. */ if (txt_decoder.data == NULL) return; for (y = 0; y < BIN_IMAGE_HEIGHT; y++) { for (x = 0; x < BIN_IMAGE_WIDTH; x++) { ch = *pdata++; attr = *pdata++; sc_vtb_putc(&sc->cur_scp->scr, (y * sc->cur_scp->xsize) + x, sc->scr_map[ch], (int)attr << 8); } } } static int txt_init(video_adapter_t *adp) { /* Ensure that the image data exists. */ if (txt_decoder.data == NULL || txt_decoder.data_size <= 0) { printf("splash_txt: No ASCII bitmap file found\n"); return (ENODEV); } return (0); } static int txt_end(video_adapter_t *adp) { return (0); } static int txt_splash(video_adapter_t *adp, const int on) { sc_softc_t *sc; scr_stat *scp; sc = sc_find_softc(adp, NULL); if (sc == NULL) return (EAGAIN); scp = sc->cur_scp; if (on) { if (!splash_on) { if (adp->va_info.vi_flags & V_INFO_GRAPHICS) return EAGAIN; /* Clear screen and set border colour. */ sc_vtb_clear(&scp->scr, sc->scr_map[0x20], (FG_LIGHTGREY | BG_BLACK) << 8); (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); sc_set_border(scp, 0); splash_on = TRUE; /* Display the splash screen. */ draw_text_splash(sc); } return (0); } else { /* The video mode will be restored by the caller. */ splash_on = FALSE; return (0); } }