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