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