Author: eadler (ports committer)
Date: Mon Dec 12 21:12:07 2011
New Revision: 228445
URL: http://svn.freebsd.org/changeset/base/228445
Log:
- Add support for ASCII art splash screens in TheDraw format
PR: kern/143370
Submitted by: Antony Mawer <ant...@mawer.org>
Reviewed by: gjb (doc)
Reviewed by: des (style)
Approved by: ed
MFC after: 1 month
Added:
head/sys/dev/fb/splash_txt.c (contents, props changed)
head/sys/modules/splash/txt/
head/sys/modules/splash/txt/Makefile (contents, props changed)
Modified:
head/share/man/man4/splash.4
head/sys/modules/splash/Makefile
Modified: head/share/man/man4/splash.4
==============================================================================
--- head/share/man/man4/splash.4 Mon Dec 12 18:44:17 2011
(r228444)
+++ head/share/man/man4/splash.4 Mon Dec 12 21:12:07 2011
(r228445)
@@ -74,6 +74,14 @@ Bitmaps of other color depths will not b
ZSoft PCX decoder.
This decoder currently only supports version 5 8-bpp single-plane
images.
+.It Pa splash_txt.ko
+TheDraw binary ASCII drawing file decoder.
+Displays a text-mode 80x25 ASCII drawing, such as that produced by
+the Binary save format in TheDraw.
+This format consists of a sequence
+of two byte pairs representing the 80x25 display, where the first byte
+is the ASCII character to draw and the second byte indicates the
+colors/attributes to use when drawing the character.
.El
.Pp
The
@@ -223,6 +231,16 @@ If the VESA support is statically linked
necessary to load the VESA module.
Just load the bitmap file and the splash decoder module as in the
first example above.
+.Pp
+To load a binary ASCII drawing and display this while booting, include the
+following into your
+.Pa /boot/loader.conf
+:
+.Bd -literal -offset indent
+splash_txt_load="YES"
+bitmap_load="YES"
+bitmap_name="/boot/splash.bin"
+.Ed
.\".Sh DIAGNOSTICS
.Sh SEE ALSO
.Xr vidcontrol 1 ,
@@ -256,6 +274,15 @@ module was written by
based on the
.Pa splash_bmp
code.
+The
+.Pa splash_txt
+module was written by
+.An Antony Mawer Aq ant...@mawer.org
+based on the
+.Pa splash_bmp
+code, with some additional inspiration from the
+.Pa daemon_saver
+code.
.Sh CAVEATS
Both the splash screen and the screen saver work with
.Xr syscons 4
Added: head/sys/dev/fb/splash_txt.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/fb/splash_txt.c Mon Dec 12 21:12:07 2011
(r228445)
@@ -0,0 +1,135 @@
+/*-
+ * Copyright (c) 1999 Michael Smith <msm...@freebsd.org>
+ * Copyright (c) 1999 Kazutaka YOKOTA <yok...@freebsd.org>
+ * Copyright (c) 2005 Antony Mawer <ant...@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.
+ *
+ * $FreeBSD$
+ */
+
+#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);
+ }
+}
+
+
Modified: head/sys/modules/splash/Makefile
==============================================================================
--- head/sys/modules/splash/Makefile Mon Dec 12 18:44:17 2011
(r228444)
+++ head/sys/modules/splash/Makefile Mon Dec 12 21:12:07 2011
(r228445)
@@ -1,5 +1,5 @@
# $FreeBSD$
-SUBDIR= bmp pcx
+SUBDIR= bmp pcx txt
.include <bsd.subdir.mk>
Added: head/sys/modules/splash/txt/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/modules/splash/txt/Makefile Mon Dec 12 21:12:07 2011
(r228445)
@@ -0,0 +1,7 @@
+# $FreeBSD$
+.PATH: ${.CURDIR}/../../../dev/fb
+
+KMOD= splash_txt
+SRCS= splash_txt.c
+
+.include <bsd.kmod.mk>
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