arch/all-pc/boot/grub2-aros/grub-core/video/colors.c

   1 /* named_colors.c - Named color values.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2008  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/types.h>
  21 #include <grub/gui.h>
  22 #include <grub/gui_string_util.h>
  23 #include <grub/misc.h>
  24 #include <grub/dl.h>
  25 #include <grub/i18n.h>
  26
  27 GRUB_MOD_LICENSE ("GPLv3+");
  28
  29 struct named_color
  30 {
  31   const char *name;
  32   grub_video_rgba_color_t color;
  33 };
  34
  35 /*
  36    Named color list generated from the list of SVG color keywords from
  37    <http://www.w3.org/TR/css3-color/#svg-color>,
  38    processed through the following Perl command:
  39    perl -ne 'chomp;split;print "{ \"$_[0]\", RGB_COLOR($_[2]) },\n"'
  40  */
  41
  42 #define RGB_COLOR(r,g,b) {.red = r, .green = g, .blue = b, .alpha = 255}
  43
  44 static struct named_color named_colors[] =
  45 {
  46     { "aliceblue", RGB_COLOR(240,248,255) },
  47     { "antiquewhite", RGB_COLOR(250,235,215) },
  48     { "aqua", RGB_COLOR(0,255,255) },
  49     { "aquamarine", RGB_COLOR(127,255,212) },
  50     { "azure", RGB_COLOR(240,255,255) },
  51     { "beige", RGB_COLOR(245,245,220) },
  52     { "bisque", RGB_COLOR(255,228,196) },
  53     { "black", RGB_COLOR(0,0,0) },
  54     { "blanchedalmond", RGB_COLOR(255,235,205) },
  55     { "blue", RGB_COLOR(0,0,255) },
  56     { "blueviolet", RGB_COLOR(138,43,226) },
  57     { "brown", RGB_COLOR(165,42,42) },
  58     { "burlywood", RGB_COLOR(222,184,135) },
  59     { "cadetblue", RGB_COLOR(95,158,160) },
  60     { "chartreuse", RGB_COLOR(127,255,0) },
  61     { "chocolate", RGB_COLOR(210,105,30) },
  62     { "coral", RGB_COLOR(255,127,80) },
  63     { "cornflowerblue", RGB_COLOR(100,149,237) },
  64     { "cornsilk", RGB_COLOR(255,248,220) },
  65     { "crimson", RGB_COLOR(220,20,60) },
  66     { "cyan", RGB_COLOR(0,255,255) },
  67     { "darkblue", RGB_COLOR(0,0,139) },
  68     { "darkcyan", RGB_COLOR(0,139,139) },
  69     { "darkgoldenrod", RGB_COLOR(184,134,11) },
  70     { "darkgray", RGB_COLOR(169,169,169) },
  71     { "darkgreen", RGB_COLOR(0,100,0) },
  72     { "darkgrey", RGB_COLOR(169,169,169) },
  73     { "darkkhaki", RGB_COLOR(189,183,107) },
  74     { "darkmagenta", RGB_COLOR(139,0,139) },
  75     { "darkolivegreen", RGB_COLOR(85,107,47) },
  76     { "darkorange", RGB_COLOR(255,140,0) },
  77     { "darkorchid", RGB_COLOR(153,50,204) },
  78     { "darkred", RGB_COLOR(139,0,0) },
  79     { "darksalmon", RGB_COLOR(233,150,122) },
  80     { "darkseagreen", RGB_COLOR(143,188,143) },
  81     { "darkslateblue", RGB_COLOR(72,61,139) },
  82     { "darkslategray", RGB_COLOR(47,79,79) },
  83     { "darkslategrey", RGB_COLOR(47,79,79) },
  84     { "darkturquoise", RGB_COLOR(0,206,209) },
  85     { "darkviolet", RGB_COLOR(148,0,211) },
  86     { "deeppink", RGB_COLOR(255,20,147) },
  87     { "deepskyblue", RGB_COLOR(0,191,255) },
  88     { "dimgray", RGB_COLOR(105,105,105) },
  89     { "dimgrey", RGB_COLOR(105,105,105) },
  90     { "dodgerblue", RGB_COLOR(30,144,255) },
  91     { "firebrick", RGB_COLOR(178,34,34) },
  92     { "floralwhite", RGB_COLOR(255,250,240) },
  93     { "forestgreen", RGB_COLOR(34,139,34) },
  94     { "fuchsia", RGB_COLOR(255,0,255) },
  95     { "gainsboro", RGB_COLOR(220,220,220) },
  96     { "ghostwhite", RGB_COLOR(248,248,255) },
  97     { "gold", RGB_COLOR(255,215,0) },
  98     { "goldenrod", RGB_COLOR(218,165,32) },
  99     { "gray", RGB_COLOR(128,128,128) },
 100     { "green", RGB_COLOR(0,128,0) },
 101     { "greenyellow", RGB_COLOR(173,255,47) },
 102     { "grey", RGB_COLOR(128,128,128) },
 103     { "honeydew", RGB_COLOR(240,255,240) },
 104     { "hotpink", RGB_COLOR(255,105,180) },
 105     { "indianred", RGB_COLOR(205,92,92) },
 106     { "indigo", RGB_COLOR(75,0,130) },
 107     { "ivory", RGB_COLOR(255,255,240) },
 108     { "khaki", RGB_COLOR(240,230,140) },
 109     { "lavender", RGB_COLOR(230,230,250) },
 110     { "lavenderblush", RGB_COLOR(255,240,245) },
 111     { "lawngreen", RGB_COLOR(124,252,0) },
 112     { "lemonchiffon", RGB_COLOR(255,250,205) },
 113     { "lightblue", RGB_COLOR(173,216,230) },
 114     { "lightcoral", RGB_COLOR(240,128,128) },
 115     { "lightcyan", RGB_COLOR(224,255,255) },
 116     { "lightgoldenrodyellow", RGB_COLOR(250,250,210) },
 117     { "lightgray", RGB_COLOR(211,211,211) },
 118     { "lightgreen", RGB_COLOR(144,238,144) },
 119     { "lightgrey", RGB_COLOR(211,211,211) },
 120     { "lightpink", RGB_COLOR(255,182,193) },
 121     { "lightsalmon", RGB_COLOR(255,160,122) },
 122     { "lightseagreen", RGB_COLOR(32,178,170) },
 123     { "lightskyblue", RGB_COLOR(135,206,250) },
 124     { "lightslategray", RGB_COLOR(119,136,153) },
 125     { "lightslategrey", RGB_COLOR(119,136,153) },
 126     { "lightsteelblue", RGB_COLOR(176,196,222) },
 127     { "lightyellow", RGB_COLOR(255,255,224) },
 128     { "lime", RGB_COLOR(0,255,0) },
 129     { "limegreen", RGB_COLOR(50,205,50) },
 130     { "linen", RGB_COLOR(250,240,230) },
 131     { "magenta", RGB_COLOR(255,0,255) },
 132     { "maroon", RGB_COLOR(128,0,0) },
 133     { "mediumaquamarine", RGB_COLOR(102,205,170) },
 134     { "mediumblue", RGB_COLOR(0,0,205) },
 135     { "mediumorchid", RGB_COLOR(186,85,211) },
 136     { "mediumpurple", RGB_COLOR(147,112,219) },
 137     { "mediumseagreen", RGB_COLOR(60,179,113) },
 138     { "mediumslateblue", RGB_COLOR(123,104,238) },
 139     { "mediumspringgreen", RGB_COLOR(0,250,154) },
 140     { "mediumturquoise", RGB_COLOR(72,209,204) },
 141     { "mediumvioletred", RGB_COLOR(199,21,133) },
 142     { "midnightblue", RGB_COLOR(25,25,112) },
 143     { "mintcream", RGB_COLOR(245,255,250) },
 144     { "mistyrose", RGB_COLOR(255,228,225) },
 145     { "moccasin", RGB_COLOR(255,228,181) },
 146     { "navajowhite", RGB_COLOR(255,222,173) },
 147     { "navy", RGB_COLOR(0,0,128) },
 148     { "oldlace", RGB_COLOR(253,245,230) },
 149     { "olive", RGB_COLOR(128,128,0) },
 150     { "olivedrab", RGB_COLOR(107,142,35) },
 151     { "orange", RGB_COLOR(255,165,0) },
 152     { "orangered", RGB_COLOR(255,69,0) },
 153     { "orchid", RGB_COLOR(218,112,214) },
 154     { "palegoldenrod", RGB_COLOR(238,232,170) },
 155     { "palegreen", RGB_COLOR(152,251,152) },
 156     { "paleturquoise", RGB_COLOR(175,238,238) },
 157     { "palevioletred", RGB_COLOR(219,112,147) },
 158     { "papayawhip", RGB_COLOR(255,239,213) },
 159     { "peachpuff", RGB_COLOR(255,218,185) },
 160     { "peru", RGB_COLOR(205,133,63) },
 161     { "pink", RGB_COLOR(255,192,203) },
 162     { "plum", RGB_COLOR(221,160,221) },
 163     { "powderblue", RGB_COLOR(176,224,230) },
 164     { "purple", RGB_COLOR(128,0,128) },
 165     { "red", RGB_COLOR(255,0,0) },
 166     { "rosybrown", RGB_COLOR(188,143,143) },
 167     { "royalblue", RGB_COLOR(65,105,225) },
 168     { "saddlebrown", RGB_COLOR(139,69,19) },
 169     { "salmon", RGB_COLOR(250,128,114) },
 170     { "sandybrown", RGB_COLOR(244,164,96) },
 171     { "seagreen", RGB_COLOR(46,139,87) },
 172     { "seashell", RGB_COLOR(255,245,238) },
 173     { "sienna", RGB_COLOR(160,82,45) },
 174     { "silver", RGB_COLOR(192,192,192) },
 175     { "skyblue", RGB_COLOR(135,206,235) },
 176     { "slateblue", RGB_COLOR(106,90,205) },
 177     { "slategray", RGB_COLOR(112,128,144) },
 178     { "slategrey", RGB_COLOR(112,128,144) },
 179     { "snow", RGB_COLOR(255,250,250) },
 180     { "springgreen", RGB_COLOR(0,255,127) },
 181     { "steelblue", RGB_COLOR(70,130,180) },
 182     { "tan", RGB_COLOR(210,180,140) },
 183     { "teal", RGB_COLOR(0,128,128) },
 184     { "thistle", RGB_COLOR(216,191,216) },
 185     { "tomato", RGB_COLOR(255,99,71) },
 186     { "turquoise", RGB_COLOR(64,224,208) },
 187     { "violet", RGB_COLOR(238,130,238) },
 188     { "wheat", RGB_COLOR(245,222,179) },
 189     { "white", RGB_COLOR(255,255,255) },
 190     { "whitesmoke", RGB_COLOR(245,245,245) },
 191     { "yellow", RGB_COLOR(255,255,0) },
 192     { "yellowgreen", RGB_COLOR(154,205,50) },
 193     { 0, { 0, 0, 0, 0 } }  /* Terminator.  */
 194 };
 195
 196 /* Get the color named NAME.  If the color was found, returns 1 and
 197    stores the color into *COLOR.  If the color was not found, returns 0 and
 198    does not modify *COLOR.  */
 199 int
 200 grub_video_get_named_color (const char *name,
 201                             grub_video_rgba_color_t *color)
 202 {
 203   int i;
 204   for (i = 0; named_colors[i].name; i++)
 205     {
 206       if (grub_strcmp (named_colors[i].name, name) == 0)
 207         {
 208           *color = named_colors[i].color;
 209           return 1;
 210         }
 211     }
 212   return 0;
 213 }
 214
 215 static int
 216 parse_hex_color_component (const char *s, unsigned start, unsigned end)
 217 {
 218   unsigned len;
 219   char buf[3];
 220
 221   len = end - start;
 222   /* Check the limits so we don't overrun the buffer.  */
 223   if (len < 1 || len > 2)
 224     return 0;
 225
 226   if (len == 1)
 227     {
 228       buf[0] = s[start];   /* Get the first and only hex digit.  */
 229       buf[1] = buf[0];     /* Duplicate the hex digit.  */
 230     }
 231   else if (len == 2)
 232     {
 233       buf[0] = s[start];
 234       buf[1] = s[start + 1];
 235     }
 236
 237   buf[2] = '\0';
 238
 239   return grub_strtoul (buf, 0, 16);
 240 }
 241
 242 /* Parse a color string of the form "r, g, b", "#RGB", "#RGBA",
 243    "#RRGGBB", or "#RRGGBBAA".  */
 244 grub_err_t
 245 grub_video_parse_color (const char *s, grub_video_rgba_color_t *color)
 246 {
 247   grub_video_rgba_color_t c;
 248   const char *s0;
 249
 250   /* Skip whitespace.  */
 251   while (*s && grub_isspace (*s))
 252     s++;
 253
 254   s0 = s;
 255
 256   if (*s == '#')
 257     {
 258       /* HTML-style.  Number if hex digits:
 259          [6] #RRGGBB     [3] #RGB
 260          [8] #RRGGBBAA   [4] #RGBA  */
 261
 262       s++;  /* Skip the '#'.  */
 263       /* Count the hexits to determine the format.  */
 264       int hexits = 0;
 265       const char *end = s;
 266       while (grub_isxdigit (*end))
 267         {
 268           end++;
 269           hexits++;
 270         }
 271
 272       /* Parse the color components based on the format.  */
 273       if (hexits == 3 || hexits == 4)
 274         {
 275           c.red = parse_hex_color_component (s, 0, 1);
 276           c.green = parse_hex_color_component (s, 1, 2);
 277           c.blue = parse_hex_color_component (s, 2, 3);
 278           if (hexits == 4)
 279             c.alpha = parse_hex_color_component (s, 3, 4);
 280           else
 281             c.alpha = 255;
 282         }
 283       else if (hexits == 6 || hexits == 8)
 284         {
 285           c.red = parse_hex_color_component (s, 0, 2);
 286           c.green = parse_hex_color_component (s, 2, 4);
 287           c.blue = parse_hex_color_component (s, 4, 6);
 288           if (hexits == 8)
 289             c.alpha = parse_hex_color_component (s, 6, 8);
 290           else
 291             c.alpha = 255;
 292         }
 293       else
 294         return grub_error (GRUB_ERR_BAD_ARGUMENT,
 295                            N_("invalid color specification `%s'"), s0);
 296     }
 297   else if (grub_isdigit (*s))
 298     {
 299       /* Comma separated decimal values.  */
 300       c.red = grub_strtoul (s, 0, 0);
 301       s = grub_strchr (s, ',');
 302       if (!s)
 303         return grub_error (GRUB_ERR_BAD_ARGUMENT,
 304                            N_("invalid color specification `%s'"), s0);
 305       s++;
 306       c.green = grub_strtoul (s, 0, 0);
 307       s = grub_strchr (s, ',');
 308       if (!s)
 309         return grub_error (GRUB_ERR_BAD_ARGUMENT,
 310                            N_("invalid color specification `%s'"), s0);
 311       s++;
 312       c.blue = grub_strtoul (s, 0, 0);
 313       s = grub_strchr (s, ',');
 314       if (!s)
 315         c.alpha = 255;
 316       else
 317         {
 318           s++;
 319           c.alpha = grub_strtoul (s, 0, 0);
 320         }
 321     }
 322   else
 323     {
 324       if (! grub_video_get_named_color (s, &c))
 325         return grub_error (GRUB_ERR_BAD_ARGUMENT,
 326                            N_("invalid color specification `%s'"), s0);
 327     }
 328
 329   if (grub_errno == GRUB_ERR_NONE)
 330     *color = c;
 331   return grub_errno;
 332 }