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grub/util/grub-render-label.c

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010,2012,2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <grub/util/misc.h>
#include <grub/i18n.h>
#include <grub/term.h>
#include <grub/font.h>
#include <grub/gfxmenu_view.h>
#include <grub/color.h>
#define _GNU_SOURCE 1
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <argp.h>
#include <unistd.h>
#include <errno.h>
#include "progname.h"
struct arguments
{
char *input;
char *text;
char *output;
char *font;
grub_video_rgba_color_t fgcolor;
grub_video_rgba_color_t bgcolor;
int verbosity;
};
static struct argp_option options[] = {
{"input", 'i', N_("FILE"), 0,
N_("read text from FILE."), 0},
{"color", 'c', N_("COLOR"), 0,
N_("use COLOR for text"), 0},
{"bgcolor", 'b', N_("COLOR"), 0,
N_("use COLOR for background"), 0},
{"text", 't', N_("STRING"), 0,
N_("set the label to render."), 0},
{"output", 'o', N_("FILE"), 0,
N_("set output filename. Default is STDOUT"), 0},
{"font", 'f', N_("FILE"), 0,
N_("use FILE as font (PF2)."), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
{ 0, 0, 0, 0, 0, 0 }
};
#include <grub/err.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/video.h>
#include <grub/video_fb.h>
static error_t
argp_parser (int key, char *arg, struct argp_state *state)
{
/* Get the input argument from argp_parse, which we
know is a pointer to our arguments structure. */
struct arguments *arguments = state->input;
grub_err_t err;
switch (key)
{
case 'i':
arguments->input = xstrdup (arg);
break;
case 'b':
err = grub_video_parse_color (arg, &arguments->bgcolor);
if (err)
grub_util_error (_("invalid color specification `%s'"), arg);
break;
case 'c':
err = grub_video_parse_color (arg, &arguments->fgcolor);
if (err)
grub_util_error (_("invalid color specification `%s'"), arg);
break;
case 'f':
arguments->font = xstrdup (arg);
break;
case 't':
arguments->text = xstrdup (arg);
break;
case 'o':
arguments->output = xstrdup (arg);
break;
case 'v':
arguments->verbosity++;
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
void grub_hostfs_init (void);
void grub_host_init (void);
struct header
{
grub_uint8_t magic;
grub_uint16_t width;
grub_uint16_t height;
} __attribute__ ((packed));
static struct argp argp = {
options, argp_parser, N_("[OPTIONS]"),
N_("Render Apple .disk_label."),
NULL, NULL, NULL
};
static struct grub_video_palette_data ieee1275_palette[256];
int
main (int argc, char *argv[])
{
FILE *out;
char *text;
char *fontfull;
struct arguments arguments;
grub_font_t font;
int width, height;
struct header head;
const grub_uint8_t vals[] = { 0xff, 0xda, 0xb3, 0x87, 0x54, 0x00 };
const grub_uint8_t vals2[] = { 0xf3, 0xe7, 0xcd, 0xc0, 0xa5, 0x96,
0x77, 0x66, 0x3f, 0x27 };
int i, j, k, cptr = 0;
grub_uint8_t bg, fg;
struct grub_video_mode_info mode_info;
for (i = 0; i < 256; i++)
ieee1275_palette[i].a = 0xff;
for (i = 0; i < 6; i++)
for (j = 0; j < 6; j++)
for (k = 0; k < 6; k++)
{
ieee1275_palette[cptr].r = vals[i];
ieee1275_palette[cptr].g = vals[j];
ieee1275_palette[cptr].b = vals[k];
ieee1275_palette[cptr].a = 0xff;
cptr++;
}
cptr--;
for (i = 0; i < 10; i++)
{
ieee1275_palette[cptr].r = vals2[i];
ieee1275_palette[cptr].g = 0;
ieee1275_palette[cptr].b = 0;
ieee1275_palette[cptr].a = 0xff;
cptr++;
}
for (i = 0; i < 10; i++)
{
ieee1275_palette[cptr].r = 0;
ieee1275_palette[cptr].g = vals2[i];
ieee1275_palette[cptr].b = 0;
ieee1275_palette[cptr].a = 0xff;
cptr++;
}
for (i = 0; i < 10; i++)
{
ieee1275_palette[cptr].r = 0;
ieee1275_palette[cptr].g = 0;
ieee1275_palette[cptr].b = vals2[i];
ieee1275_palette[cptr].a = 0xff;
cptr++;
}
for (i = 0; i < 10; i++)
{
ieee1275_palette[cptr].r = vals2[i];
ieee1275_palette[cptr].g = vals2[i];
ieee1275_palette[cptr].b = vals2[i];
ieee1275_palette[cptr].a = 0xff;
cptr++;
}
ieee1275_palette[cptr].r = 0;
ieee1275_palette[cptr].g = 0;
ieee1275_palette[cptr].b = 0;
ieee1275_palette[cptr].a = 0xff;
grub_util_host_init (&argc, &argv);
/* Check for options. */
memset (&arguments, 0, sizeof (struct arguments));
arguments.bgcolor.red = 0xff;
arguments.bgcolor.green = 0xff;
arguments.bgcolor.blue = 0xff;
arguments.bgcolor.alpha = 0xff;
arguments.fgcolor.red = 0x00;
arguments.fgcolor.green = 0x00;
arguments.fgcolor.blue = 0x00;
arguments.fgcolor.alpha = 0xff;
if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
{
fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
exit(1);
}
if ((!arguments.input && !arguments.text) || !arguments.font)
{
fprintf (stderr, "%s", _("Missing arguments\n"));
exit(1);
}
if (arguments.text)
text = arguments.text;
else
{
FILE *in = grub_util_fopen (arguments.input, "r");
size_t s;
if (!in)
grub_util_error (_("cannot open `%s': %s"), arguments.input,
strerror (errno));
fseek (in, 0, SEEK_END);
s = ftell (in);
fseek (in, 0, SEEK_SET);
text = xmalloc (s + 1);
if (fread (text, 1, s, in) != s)
grub_util_error (_("cannot read `%s': %s"), arguments.input,
strerror (errno));
text[s] = 0;
fclose (in);
}
if (arguments.output)
out = grub_util_fopen (arguments.output, "wb");
else
out = stdout;
if (!out)
{
grub_util_error (_("cannot open `%s': %s"), arguments.output ? : "stdout",
strerror (errno));
}
fontfull = canonicalize_file_name (arguments.font);
if (!fontfull)
{
grub_util_error (_("cannot open `%s': %s"), arguments.font,
strerror (errno));
}
fontfull = xasprintf ("(host)/%s", fontfull);
grub_init_all ();
grub_hostfs_init ();
grub_host_init ();
grub_font_loader_init ();
font = grub_font_load (fontfull);
if (!font)
{
grub_util_error (_("cannot open `%s': %s"), arguments.font,
grub_errmsg);
}
width = grub_font_get_string_width (font, text) + 10;
height = grub_font_get_height (font);
mode_info.width = width;
mode_info.height = height;
mode_info.pitch = width;
mode_info.mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
mode_info.bpp = 8;
mode_info.bytes_per_pixel = 1;
mode_info.number_of_colors = 256;
grub_video_capture_start (&mode_info, ieee1275_palette,
ARRAY_SIZE (ieee1275_palette));
fg = grub_video_map_rgb (arguments.fgcolor.red,
arguments.fgcolor.green,
arguments.fgcolor.blue);
bg = grub_video_map_rgb (arguments.bgcolor.red,
arguments.bgcolor.green,
arguments.bgcolor.blue);
grub_memset (grub_video_capture_get_framebuffer (), bg, height * width);
grub_font_draw_string (text, font, fg,
5, grub_font_get_ascent (font));
head.magic = 1;
head.width = grub_cpu_to_be16 (width);
head.height = grub_cpu_to_be16 (height);
fwrite (&head, 1, sizeof (head), out);
fwrite (grub_video_capture_get_framebuffer (), 1, width * height, out);
grub_video_capture_end ();
if (out != stdout)
fclose (out);
return 0;
}
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