freebsd-skq/sys/dev/fb/splash_pcx.c

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/*-
* Copyright (c) 1999 Michael Smith <msmith@freebsd.org>
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@freebsd.org>
* Copyright (c) 1999 Dag-Erling Co<EFBFBD>dan Sm<EFBFBD>rgrav
* 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
* in this position and unchanged.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
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* $FreeBSD$
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*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/linker.h>
The second phase of syscons reorganization. - Split syscons source code into manageable chunks and reorganize some of complicated functions. - Many static variables are moved to the softc structure. - Added a new key function, PREV. When this key is pressed, the vty immediately before the current vty will become foreground. Analogue to PREV, which is usually assigned to the PrntScrn key. PR: kern/10113 Submitted by: Christian Weisgerber <naddy@mips.rhein-neckar.de> - Modified the kernel console input function sccngetc() so that it handles function keys properly. - Reorganized the screen update routine. - VT switching code is reorganized. It now should be slightly more robust than before. - Added the DEVICE_RESUME function so that syscons no longer hooks the APM resume event directly. - New kernel configuration options: SC_NO_CUTPASTE, SC_NO_FONT_LOADING, SC_NO_HISTORY and SC_NO_SYSMOUSE. Various parts of syscons can be omitted so that the kernel size is reduced. SC_PIXEL_MODE Made the VESA 800x600 mode an option, rather than a standard part of syscons. SC_DISABLE_DDBKEY Disables the `debug' key combination. SC_ALT_MOUSE_IMAGE Inverse the character cell at the mouse cursor position in the text console, rather than drawing an arrow on the screen. Submitted by: Nick Hibma (n_hibma@FreeBSD.ORG) SC_DFLT_FONT makeoptions "SC_DFLT_FONT=_font_name_" Include the named font as the default font of syscons. 16-line, 14-line and 8-line font data will be compiled in. This option replaces the existing STD8X16FONT option, which loads 16-line font data only. - The VGA driver is split into /sys/dev/fb/vga.c and /sys/isa/vga_isa.c. - The video driver provides a set of ioctl commands to manipulate the frame buffer. - New kernel configuration option: VGA_WIDTH90 Enables 90 column modes: 90x25, 90x30, 90x43, 90x50, 90x60. These modes are mot always supported by the video card. PR: i386/7510 Submitted by: kbyanc@freedomnet.com and alexv@sui.gda.itesm.mx. - The header file machine/console.h is reorganized; its contents is now split into sys/fbio.h, sys/kbio.h (a new file) and sys/consio.h (another new file). machine/console.h is still maintained for compatibility reasons. - Kernel console selection/installation routines are fixed and slightly rebumped so that it should now be possible to switch between the interanl kernel console (sc or vt) and a remote kernel console (sio) again, as it was in 2.x, 3.0 and 3.1. - Screen savers and splash screen decoders Because of the header file reorganization described above, screen savers and splash screen decoders are slightly modified. After this update, /sys/modules/syscons/saver.h is no longer necessary and is removed.
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#include <sys/fbio.h>
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#include <dev/fb/fbreg.h>
#include <dev/fb/splashreg.h>
#define FADE_TIMEOUT 300 /* sec */
static int splash_mode = -1;
static int splash_on = FALSE;
static int pcx_start(video_adapter_t *adp);
static int pcx_end(video_adapter_t *adp);
static int pcx_splash(video_adapter_t *adp, int on);
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static int pcx_init(char *data, int sdepth);
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static int pcx_draw(video_adapter_t *adp);
static splash_decoder_t pcx_decoder = {
"splash_pcx", pcx_start, pcx_end, pcx_splash, SPLASH_IMAGE,
};
SPLASH_DECODER(splash_pcx, pcx_decoder);
static struct
{
int width, height, bpsl;
int bpp, planes, zlen;
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const u_char *zdata;
u_char *palette;
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} pcx_info;
static int
pcx_start(video_adapter_t *adp)
{
static int modes[] = {
M_VGA_CG320,
M_VESA_CG640x480,
M_VESA_CG800x600,
M_VESA_CG1024x768,
-1,
};
video_info_t info;
int i;
if (pcx_decoder.data == NULL
|| pcx_decoder.data_size <= 0
|| pcx_init((u_char *)pcx_decoder.data, pcx_decoder.data_size))
return ENODEV;
if (bootverbose)
printf("splash_pcx: image good:\n"
" width = %d\n"
" height = %d\n"
" depth = %d\n"
" planes = %d\n",
pcx_info.width, pcx_info.height,
pcx_info.bpp, pcx_info.planes);
for (i = 0; modes[i] >= 0; ++i) {
if (get_mode_info(adp, modes[i], &info) != 0)
continue;
if (bootverbose)
printf("splash_pcx: considering mode %d:\n"
" vi_width = %d\n"
" vi_height = %d\n"
" vi_depth = %d\n"
" vi_planes = %d\n",
modes[i],
info.vi_width, info.vi_height,
info.vi_depth, info.vi_planes);
if (info.vi_width >= pcx_info.width
&& info.vi_height >= pcx_info.height
&& info.vi_depth == pcx_info.bpp
&& info.vi_planes == pcx_info.planes)
break;
}
splash_mode = modes[i];
if (splash_mode == -1)
return ENODEV;
if (bootverbose)
printf("pcx_splash: selecting mode %d\n", splash_mode);
return 0;
}
static int
pcx_end(video_adapter_t *adp)
{
/* nothing to do */
return 0;
}
static int
pcx_splash(video_adapter_t *adp, int on)
{
if (on) {
if (!splash_on) {
if (set_video_mode(adp, splash_mode) || pcx_draw(adp))
return 1;
splash_on = TRUE;
}
return 0;
} else {
splash_on = FALSE;
return 0;
}
}
struct pcxheader {
u_char manufactor;
u_char version;
u_char encoding;
u_char bpp;
u_short xmin, ymin, xmax, ymax;
u_short hres, vres;
u_char colormap[48];
u_char rsvd;
u_char nplanes;
u_short bpsl;
u_short palinfo;
u_short hsize, vsize;
};
#define MAXSCANLINE 1024
static int
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pcx_init(char *data, int size)
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{
const struct pcxheader *hdr;
hdr = (const struct pcxheader *)data;
if (size < 128 + 1 + 1 + 768
|| hdr->manufactor != 10
|| hdr->version != 5
|| hdr->encoding != 1
|| hdr->nplanes != 1
|| hdr->bpp != 8
|| hdr->bpsl > MAXSCANLINE
|| data[size-769] != 12) {
printf("splash_pcx: invalid PCX image\n");
return 1;
}
pcx_info.width = hdr->xmax - hdr->xmin + 1;
pcx_info.height = hdr->ymax - hdr->ymin + 1;
pcx_info.bpsl = hdr->bpsl;
pcx_info.bpp = hdr->bpp;
pcx_info.planes = hdr->nplanes;
pcx_info.zlen = size - (128 + 1 + 768);
pcx_info.zdata = data + 128;
pcx_info.palette = data + size - 768;
return 0;
}
static int
pcx_draw(video_adapter_t *adp)
{
u_char *vidmem;
int swidth, sheight, sbpsl, sdepth, splanes;
int banksize, origin;
int c, i, j, pos, scan, x, y;
u_char line[MAXSCANLINE];
if (pcx_info.zlen < 1)
return 1;
load_palette(adp, pcx_info.palette);
vidmem = (u_char *)adp->va_window;
swidth = adp->va_info.vi_width;
sheight = adp->va_info.vi_height;
sbpsl = adp->va_line_width;
sdepth = adp->va_info.vi_depth;
splanes = adp->va_info.vi_planes;
banksize = adp->va_window_size;
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for (origin = 0; origin < sheight*sbpsl; origin += banksize) {
set_origin(adp, origin);
bzero(vidmem, banksize);
}
x = (swidth - pcx_info.width) / 2;
y = (sheight - pcx_info.height) / 2;
origin = 0;
pos = y * sbpsl + x;
while (pos > banksize) {
pos -= banksize;
origin += banksize;
}
set_origin(adp, origin);
for (scan = i = 0; scan < pcx_info.height; ++scan, ++y, pos += sbpsl) {
for (j = 0; j < pcx_info.bpsl && i < pcx_info.zlen; ++i) {
if ((pcx_info.zdata[i] & 0xc0) == 0xc0) {
c = pcx_info.zdata[i++] & 0x3f;
if (i >= pcx_info.zlen)
return 1;
} else {
c = 1;
}
if (j + c > pcx_info.bpsl)
return 1;
while (c--)
line[j++] = pcx_info.zdata[i];
}
if (pos > banksize) {
origin += banksize;
pos -= banksize;
set_origin(adp, origin);
}
if (pos + pcx_info.width > banksize) {
/* scanline crosses bank boundary */
j = banksize - pos;
bcopy(line, vidmem + pos, j);
origin += banksize;
pos -= banksize;
set_origin(adp, origin);
bcopy(line + j, vidmem, pcx_info.width - j);
} else {
bcopy(line, vidmem + pos, pcx_info.width);
}
}
return 0;
}