1 /* libs/graphics/xml/SkParseColor.cpp 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include "SkParse.h" 19 20 #ifdef SK_DEBUG 21 #include "SkString.h" 22 23 // compress names 6 chars per long (packed 5 bits/char ) 24 // note: little advantage to splitting chars across longs, since 3 longs at 2 unused bits each 25 // allow for one additional split char (vs. the 18 unsplit chars in the three longs) 26 // use extra two bits to represent: 27 // 00 : final 6 (or fewer) chars (if 'a' is 0x01, zero could have special meaning) 28 // 01 : not final 6 chars 29 // 10 : color 30 // 11 : unused, except as debugging sentinal? (could be -1 for easier test) 31 // !!! the bit to end the word (last) is at the low bit for binary search 32 // lookup first character in offset for quick start 33 // offset is 27-entry table of bytes(?) that trims linear search to at most 21 entries ('d') 34 // shift match into long; set bit 30 if it all doesn't fit 35 // while longs don't match, march forward 36 // if they do match, and bit 30 is set, advance match, clearing bit 30 if 37 // final chars, and advance to next test 38 // if they do match, and bit 30 is clear, get next long (color) and return it 39 // stop at lookup of first char + 1 40 static const struct SkNameRGB { 41 const char* name; 42 int rgb; 43 } colorNames[] = { 44 { "aliceblue", 0xF0F8FF }, 45 { "antiquewhite", 0xFAEBD7 }, 46 { "aqua", 0x00FFFF }, 47 { "aquamarine", 0x7FFFD4 }, 48 { "azure", 0xF0FFFF }, 49 { "beige", 0xF5F5DC }, 50 { "bisque", 0xFFE4C4 }, 51 { "black", 0x000000 }, 52 { "blanchedalmond", 0xFFEBCD }, 53 { "blue", 0x0000FF }, 54 { "blueviolet", 0x8A2BE2 }, 55 { "brown", 0xA52A2A }, 56 { "burlywood", 0xDEB887 }, 57 { "cadetblue", 0x5F9EA0 }, 58 { "chartreuse", 0x7FFF00 }, 59 { "chocolate", 0xD2691E }, 60 { "coral", 0xFF7F50 }, 61 { "cornflowerblue", 0x6495ED }, 62 { "cornsilk", 0xFFF8DC }, 63 { "crimson", 0xDC143C }, 64 { "cyan", 0x00FFFF }, 65 { "darkblue", 0x00008B }, 66 { "darkcyan", 0x008B8B }, 67 { "darkgoldenrod", 0xB8860B }, 68 { "darkgray", 0xA9A9A9 }, 69 { "darkgreen", 0x006400 }, 70 { "darkkhaki", 0xBDB76B }, 71 { "darkmagenta", 0x8B008B }, 72 { "darkolivegreen", 0x556B2F }, 73 { "darkorange", 0xFF8C00 }, 74 { "darkorchid", 0x9932CC }, 75 { "darkred", 0x8B0000 }, 76 { "darksalmon", 0xE9967A }, 77 { "darkseagreen", 0x8FBC8F }, 78 { "darkslateblue", 0x483D8B }, 79 { "darkslategray", 0x2F4F4F }, 80 { "darkturquoise", 0x00CED1 }, 81 { "darkviolet", 0x9400D3 }, 82 { "deeppink", 0xFF1493 }, 83 { "deepskyblue", 0x00BFFF }, 84 { "dimgray", 0x696969 }, 85 { "dodgerblue", 0x1E90FF }, 86 { "firebrick", 0xB22222 }, 87 { "floralwhite", 0xFFFAF0 }, 88 { "forestgreen", 0x228B22 }, 89 { "fuchsia", 0xFF00FF }, 90 { "gainsboro", 0xDCDCDC }, 91 { "ghostwhite", 0xF8F8FF }, 92 { "gold", 0xFFD700 }, 93 { "goldenrod", 0xDAA520 }, 94 { "gray", 0x808080 }, 95 { "green", 0x008000 }, 96 { "greenyellow", 0xADFF2F }, 97 { "honeydew", 0xF0FFF0 }, 98 { "hotpink", 0xFF69B4 }, 99 { "indianred", 0xCD5C5C }, 100 { "indigo", 0x4B0082 }, 101 { "ivory", 0xFFFFF0 }, 102 { "khaki", 0xF0E68C }, 103 { "lavender", 0xE6E6FA }, 104 { "lavenderblush", 0xFFF0F5 }, 105 { "lawngreen", 0x7CFC00 }, 106 { "lemonchiffon", 0xFFFACD }, 107 { "lightblue", 0xADD8E6 }, 108 { "lightcoral", 0xF08080 }, 109 { "lightcyan", 0xE0FFFF }, 110 { "lightgoldenrodyellow", 0xFAFAD2 }, 111 { "lightgreen", 0x90EE90 }, 112 { "lightgrey", 0xD3D3D3 }, 113 { "lightpink", 0xFFB6C1 }, 114 { "lightsalmon", 0xFFA07A }, 115 { "lightseagreen", 0x20B2AA }, 116 { "lightskyblue", 0x87CEFA }, 117 { "lightslategray", 0x778899 }, 118 { "lightsteelblue", 0xB0C4DE }, 119 { "lightyellow", 0xFFFFE0 }, 120 { "lime", 0x00FF00 }, 121 { "limegreen", 0x32CD32 }, 122 { "linen", 0xFAF0E6 }, 123 { "magenta", 0xFF00FF }, 124 { "maroon", 0x800000 }, 125 { "mediumaquamarine", 0x66CDAA }, 126 { "mediumblue", 0x0000CD }, 127 { "mediumorchid", 0xBA55D3 }, 128 { "mediumpurple", 0x9370DB }, 129 { "mediumseagreen", 0x3CB371 }, 130 { "mediumslateblue", 0x7B68EE }, 131 { "mediumspringgreen", 0x00FA9A }, 132 { "mediumturquoise", 0x48D1CC }, 133 { "mediumvioletred", 0xC71585 }, 134 { "midnightblue", 0x191970 }, 135 { "mintcream", 0xF5FFFA }, 136 { "mistyrose", 0xFFE4E1 }, 137 { "moccasin", 0xFFE4B5 }, 138 { "navajowhite", 0xFFDEAD }, 139 { "navy", 0x000080 }, 140 { "oldlace", 0xFDF5E6 }, 141 { "olive", 0x808000 }, 142 { "olivedrab", 0x6B8E23 }, 143 { "orange", 0xFFA500 }, 144 { "orangered", 0xFF4500 }, 145 { "orchid", 0xDA70D6 }, 146 { "palegoldenrod", 0xEEE8AA }, 147 { "palegreen", 0x98FB98 }, 148 { "paleturquoise", 0xAFEEEE }, 149 { "palevioletred", 0xDB7093 }, 150 { "papayawhip", 0xFFEFD5 }, 151 { "peachpuff", 0xFFDAB9 }, 152 { "peru", 0xCD853F }, 153 { "pink", 0xFFC0CB }, 154 { "plum", 0xDDA0DD }, 155 { "powderblue", 0xB0E0E6 }, 156 { "purple", 0x800080 }, 157 { "red", 0xFF0000 }, 158 { "rosybrown", 0xBC8F8F }, 159 { "royalblue", 0x4169E1 }, 160 { "saddlebrown", 0x8B4513 }, 161 { "salmon", 0xFA8072 }, 162 { "sandybrown", 0xF4A460 }, 163 { "seagreen", 0x2E8B57 }, 164 { "seashell", 0xFFF5EE }, 165 { "sienna", 0xA0522D }, 166 { "silver", 0xC0C0C0 }, 167 { "skyblue", 0x87CEEB }, 168 { "slateblue", 0x6A5ACD }, 169 { "slategray", 0x708090 }, 170 { "snow", 0xFFFAFA }, 171 { "springgreen", 0x00FF7F }, 172 { "steelblue", 0x4682B4 }, 173 { "tan", 0xD2B48C }, 174 { "teal", 0x008080 }, 175 { "thistle", 0xD8BFD8 }, 176 { "tomato", 0xFF6347 }, 177 { "turquoise", 0x40E0D0 }, 178 { "violet", 0xEE82EE }, 179 { "wheat", 0xF5DEB3 }, 180 { "white", 0xFFFFFF }, 181 { "whitesmoke", 0xF5F5F5 }, 182 { "yellow", 0xFFFF00 }, 183 { "yellowgreen", 0x9ACD32 } 184 }; 185 186 int colorNamesSize = sizeof(colorNames) / sizeof(colorNames[0]); 187 188 #ifdef SK_SUPPORT_UNITTEST CreateTable()189 static void CreateTable() { 190 SkString comment; 191 size_t originalSize = 0; 192 int replacement = 0; 193 for (int index = 0; index < colorNamesSize; index++) { 194 SkNameRGB nameRGB = colorNames[index]; 195 const char* name = nameRGB.name; 196 size_t len = strlen(name); 197 originalSize += len + 9; 198 bool first = true; 199 bool last = false; 200 do { 201 int compressed = 0; 202 const char* start = name; 203 for (int chIndex = 0; chIndex < 6; chIndex++) { 204 compressed <<= 5; 205 compressed |= *name ? *name++ - 'a' + 1 : 0 ; 206 } 207 replacement += sizeof(int); 208 compressed <<= 1; 209 compressed |= 1; 210 if (first) { 211 compressed |= 0x80000000; 212 first = false; 213 } 214 if (len <= 6) { // last 215 compressed &= ~1; 216 last = true; 217 } 218 len -= 6; 219 SkDebugf("0x%08x, ", compressed); 220 comment.append(start, name - start); 221 } while (last == false); 222 replacement += sizeof(int); 223 SkDebugf("0x%08x, ", nameRGB.rgb); 224 SkDebugf("// %s\n", comment.c_str()); 225 comment.reset(); 226 } 227 SkDebugf("// original = %d : replacement = %d\n", originalSize, replacement); 228 SkASSERT(0); // always stop after creating table 229 } 230 #endif 231 232 #endif 233 234 static const unsigned int gColorNames[] = { 235 0x85891945, 0x32a50000, 0x00f0f8ff, // aliceblue 236 0x85d44c6b, 0x16e84d0a, 0x00faebd7, // antiquewhite 237 0x86350800, 0x0000ffff, // aqua 238 0x86350b43, 0x492e2800, 0x007fffd4, // aquamarine 239 0x87559140, 0x00f0ffff, // azure 240 0x88a93940, 0x00f5f5dc, // beige 241 0x89338d4a, 0x00ffe4c4, // bisque 242 0x89811ac0, 0x00000000, // black 243 0x898170d1, 0x1481635f, 0x38800000, 0x00ffebcd, // blanchedalmond 244 0x89952800, 0x000000ff, // blue 245 0x89952d93, 0x3d85a000, 0x008a2be2, // blueviolet 246 0x8a4fbb80, 0x00a52a2a, // brown 247 0x8ab2666f, 0x3de40000, 0x00deb887, // burlywood 248 0x8c242d05, 0x32a50000, 0x005f9ea0, // cadetblue 249 0x8d019525, 0x16b32800, 0x007fff00, // chartreuse 250 0x8d0f1bd9, 0x06850000, 0x00d2691e, // chocolate 251 0x8df20b00, 0x00ff7f50, // coral 252 0x8df27199, 0x3ee59099, 0x54a00000, 0x006495ed, // cornflowerblue 253 0x8df274d3, 0x31600000, 0x00fff8dc, // cornsilk 254 0x8e496cdf, 0x38000000, 0x00dc143c, // crimson 255 0x8f217000, 0x0000ffff, // cyan 256 0x90325899, 0x54a00000, 0x0000008b, // darkblue 257 0x903258f3, 0x05c00000, 0x00008b8b, // darkcyan 258 0x903259df, 0x3085749f, 0x10000000, 0x00b8860b, // darkgoldenrod 259 0x903259e5, 0x07200000, 0x00a9a9a9, // darkgray 260 0x903259e5, 0x14ae0000, 0x00006400, // darkgreen 261 0x90325ad1, 0x05690000, 0x00bdb76b, // darkkhaki 262 0x90325b43, 0x1caea040, 0x008b008b, // darkmagenta 263 0x90325bd9, 0x26c53c8b, 0x15c00000, 0x00556b2f, // darkolivegreen 264 0x90325be5, 0x05c72800, 0x00ff8c00, // darkorange 265 0x90325be5, 0x0d092000, 0x009932cc, // darkorchid 266 0x90325c8b, 0x10000000, 0x008b0000, // darkred 267 0x90325cc3, 0x31af7000, 0x00e9967a, // darksalmon 268 0x90325ccb, 0x04f2295c, 0x008fbc8f, // darkseagreen 269 0x90325cd9, 0x0685132b, 0x14000000, 0x00483d8b, // darkslateblue 270 0x90325cd9, 0x06853c83, 0x64000000, 0x002f4f4f, // darkslategray 271 0x90325d2b, 0x4a357a67, 0x14000000, 0x0000ced1, // darkturquoise 272 0x90325d93, 0x3d85a000, 0x009400d3, // darkviolet 273 0x90a58413, 0x39600000, 0x00ff1493, // deeppink 274 0x90a584d7, 0x644ca940, 0x0000bfff, // deepskyblue 275 0x912d3c83, 0x64000000, 0x00696969, // dimgray 276 0x91e43965, 0x09952800, 0x001e90ff, // dodgerblue 277 0x993228a5, 0x246b0000, 0x00b22222, // firebrick 278 0x998f9059, 0x5d09a140, 0x00fffaf0, // floralwhite 279 0x99f22ce9, 0x1e452b80, 0x00228b22, // forestgreen 280 0x9aa344d3, 0x04000000, 0x00ff00ff, // fuchsia 281 0x9c2974c5, 0x3e4f0000, 0x00dcdcdc, // gainsboro 282 0x9d0f9d2f, 0x21342800, 0x00f8f8ff, // ghostwhite 283 0x9dec2000, 0x00ffd700, // gold 284 0x9dec215d, 0x49e40000, 0x00daa520, // goldenrod 285 0x9e41c800, 0x00808080, // gray 286 0x9e452b80, 0x00008000, // green 287 0x9e452bb3, 0x158c7dc0, 0x00adff2f, // greenyellow 288 0xa1ee2e49, 0x16e00000, 0x00f0fff0, // honeydew 289 0xa1f4825d, 0x2c000000, 0x00ff69b4, // hotpink 290 0xa5c4485d, 0x48a40000, 0x00cd5c5c, // indianred 291 0xa5c449de, 0x004b0082, // indigo 292 0xa6cf9640, 0x00fffff0, // ivory 293 0xad015a40, 0x00f0e68c, // khaki 294 0xb0362b89, 0x16400000, 0x00e6e6fa, // lavender 295 0xb0362b89, 0x16426567, 0x20000000, 0x00fff0f5, // lavenderblush 296 0xb03771e5, 0x14ae0000, 0x007cfc00, // lawngreen 297 0xb0ad7b87, 0x212633dc, 0x00fffacd, // lemonchiffon 298 0xb1274505, 0x32a50000, 0x00add8e6, // lightblue 299 0xb1274507, 0x3e416000, 0x00f08080, // lightcoral 300 0xb1274507, 0x642e0000, 0x00e0ffff, // lightcyan 301 0xb127450f, 0x3d842ba5, 0x3c992b19, 0x3ee00000, 0x00fafad2, // lightgoldenrodyellow 302 0xb127450f, 0x48a57000, 0x0090ee90, // lightgreen 303 0xb127450f, 0x48b90000, 0x00d3d3d3, // lightgrey 304 0xb1274521, 0x25cb0000, 0x00ffb6c1, // lightpink 305 0xb1274527, 0x058d7b80, 0x00ffa07a, // lightsalmon 306 0xb1274527, 0x1427914b, 0x38000000, 0x0020b2aa, // lightseagreen 307 0xb1274527, 0x2f22654a, 0x0087cefa, // lightskyblue 308 0xb1274527, 0x303429e5, 0x07200000, 0x00778899, // lightslategray 309 0xb1274527, 0x50a56099, 0x54a00000, 0x00b0c4de, // lightsteelblue 310 0xb1274533, 0x158c7dc0, 0x00ffffe0, // lightyellow 311 0xb12d2800, 0x0000ff00, // lime 312 0xb12d29e5, 0x14ae0000, 0x0032cd32, // limegreen 313 0xb12e2b80, 0x00faf0e6, // linen 314 0xb4272ba9, 0x04000000, 0x00ff00ff, // magenta 315 0xb4327bdc, 0x00800000, // maroon 316 0xb4a44d5b, 0x06350b43, 0x492e2800, 0x0066cdaa, // mediumaquamarine 317 0xb4a44d5b, 0x09952800, 0x000000cd, // mediumblue 318 0xb4a44d5b, 0x3e434248, 0x00ba55d3, // mediumorchid 319 0xb4a44d5b, 0x42b2830a, 0x009370db, // mediumpurple 320 0xb4a44d5b, 0x4ca13c8b, 0x15c00000, 0x003cb371, // mediumseagreen 321 0xb4a44d5b, 0x4d81a145, 0x32a50000, 0x007b68ee, // mediumslateblue 322 0xb4a44d5b, 0x4e124b8f, 0x1e452b80, 0x0000fa9a, // mediumspringgreen 323 0xb4a44d5b, 0x52b28d5f, 0x26650000, 0x0048d1cc, // mediumturquoise 324 0xb4a44d5b, 0x592f6169, 0x48a40000, 0x00c71585, // mediumvioletred 325 0xb524724f, 0x2282654a, 0x00191970, // midnightblue 326 0xb52ea0e5, 0x142d0000, 0x00f5fffa, // mintcream 327 0xb533a665, 0x3e650000, 0x00ffe4e1, // mistyrose 328 0xb5e31867, 0x25c00000, 0x00ffe4b5, // moccasin 329 0xb8360a9f, 0x5d09a140, 0x00ffdead, // navajowhite 330 0xb836c800, 0x00000080, // navy 331 0xbd846047, 0x14000000, 0x00fdf5e6, // oldlace 332 0xbd89b140, 0x00808000, // olive 333 0xbd89b149, 0x48220000, 0x006b8e23, // olivedrab 334 0xbe4171ca, 0x00ffa500, // orange 335 0xbe4171cb, 0x48a40000, 0x00ff4500, // orangered 336 0xbe434248, 0x00da70d6, // orchid 337 0xc02c29df, 0x3085749f, 0x10000000, 0x00eee8aa, // palegoldenrod 338 0xc02c29e5, 0x14ae0000, 0x0098fb98, // palegreen 339 0xc02c2d2b, 0x4a357a67, 0x14000000, 0x00afeeee, // paleturquoise 340 0xc02c2d93, 0x3d85a48b, 0x10000000, 0x00db7093, // palevioletred 341 0xc0300e43, 0x5d098000, 0x00ffefd5, // papayawhip 342 0xc0a11a21, 0x54c60000, 0x00ffdab9, // peachpuff 343 0xc0b2a800, 0x00cd853f, // peru 344 0xc12e5800, 0x00ffc0cb, // pink 345 0xc1956800, 0x00dda0dd, // plum 346 0xc1f72165, 0x09952800, 0x00b0e0e6, // powderblue 347 0xc2b2830a, 0x00800080, // purple 348 0xc8a40000, 0x00ff0000, // red 349 0xc9f3c8a5, 0x3eee0000, 0x00bc8f8f, // rosybrown 350 0xc9f90b05, 0x32a50000, 0x004169e1, // royalblue 351 0xcc24230b, 0x0a4fbb80, 0x008b4513, // saddlebrown 352 0xcc2c6bdc, 0x00fa8072, // salmon 353 0xcc2e2645, 0x49f77000, 0x00f4a460, // sandybrown 354 0xcca13c8b, 0x15c00000, 0x002e8b57, // seagreen 355 0xcca19a0b, 0x31800000, 0x00fff5ee, // seashell 356 0xcd257382, 0x00a0522d, // sienna 357 0xcd2cb164, 0x00c0c0c0, // silver 358 0xcd79132b, 0x14000000, 0x0087ceeb, // skyblue 359 0xcd81a145, 0x32a50000, 0x006a5acd, // slateblue 360 0xcd81a14f, 0x48390000, 0x00708090, // slategray 361 0xcdcfb800, 0x00fffafa, // snow 362 0xce124b8f, 0x1e452b80, 0x0000ff7f, // springgreen 363 0xce852b05, 0x32a50000, 0x004682b4, // steelblue 364 0xd02e0000, 0x00d2b48c, // tan 365 0xd0a16000, 0x00008080, // teal 366 0xd1099d19, 0x14000000, 0x00d8bfd8, // thistle 367 0xd1ed0d1e, 0x00ff6347, // tomato 368 0xd2b28d5f, 0x26650000, 0x0040e0d0, // turquoise 369 0xd92f6168, 0x00ee82ee, // violet 370 0xdd050d00, 0x00f5deb3, // wheat 371 0xdd09a140, 0x00ffffff, // white 372 0xdd09a167, 0x35eb2800, 0x00f5f5f5, // whitesmoke 373 0xe4ac63ee, 0x00ffff00, // yellow 374 0xe4ac63ef, 0x1e452b80, 0x009acd32 // yellowgreen 375 }; // original = 2505 : replacement = 1616 376 377 FindNamedColor(const char * name,size_t len,SkColor * color)378 const char* SkParse::FindNamedColor(const char* name, size_t len, SkColor* color) { 379 const char* namePtr = name; 380 unsigned int sixMatches[4]; 381 unsigned int* sixMatchPtr = sixMatches; 382 bool first = true; 383 bool last = false; 384 char ch; 385 do { 386 unsigned int sixMatch = 0; 387 for (int chIndex = 0; chIndex < 6; chIndex++) { 388 sixMatch <<= 5; 389 ch = *namePtr | 0x20; 390 if (ch < 'a' || ch > 'z') 391 ch = 0; 392 else { 393 ch = ch - 'a' + 1; 394 namePtr++; 395 } 396 sixMatch |= ch ; // turn 'A' (0x41) into 'a' (0x61); 397 } 398 sixMatch <<= 1; 399 sixMatch |= 1; 400 if (first) { 401 sixMatch |= 0x80000000; 402 first = false; 403 } 404 ch = *namePtr | 0x20; 405 last = ch < 'a' || ch > 'z'; 406 if (last) 407 sixMatch &= ~1; 408 len -= 6; 409 *sixMatchPtr++ = sixMatch; 410 } while (last == false && len > 0); 411 const int colorNameSize = sizeof(gColorNames) / sizeof(unsigned int); 412 int lo = 0; 413 int hi = colorNameSize - 3; // back off to beginning of yellowgreen 414 while (lo <= hi) { 415 int mid = (hi + lo) >> 1; 416 while ((int) gColorNames[mid] >= 0) 417 --mid; 418 sixMatchPtr = sixMatches; 419 while (gColorNames[mid] == *sixMatchPtr) { 420 ++mid; 421 if ((*sixMatchPtr & 1) == 0) { // last 422 *color = gColorNames[mid] | 0xFF000000; 423 return namePtr; 424 } 425 ++sixMatchPtr; 426 } 427 int sixMask = *sixMatchPtr & ~0x80000000; 428 int midMask = gColorNames[mid] & ~0x80000000; 429 if (sixMask > midMask) { 430 lo = mid + 2; // skip color 431 while ((int) gColorNames[lo] >= 0) 432 ++lo; 433 } else if (hi == mid) 434 return NULL; 435 else 436 hi = mid; 437 } 438 return NULL; 439 } 440 441 // !!! move to char utilities 442 //static int count_separators(const char* str, const char* sep) { 443 // char c; 444 // int separators = 0; 445 // while ((c = *str++) != '\0') { 446 // if (strchr(sep, c) == NULL) 447 // continue; 448 // do { 449 // if ((c = *str++) == '\0') 450 // goto goHome; 451 // } while (strchr(sep, c) != NULL); 452 // separators++; 453 // } 454 //goHome: 455 // return separators; 456 //} 457 nib2byte(unsigned n)458 static inline unsigned nib2byte(unsigned n) 459 { 460 SkASSERT((n & ~0xF) == 0); 461 return (n << 4) | n; 462 } 463 FindColor(const char * value,SkColor * colorPtr)464 const char* SkParse::FindColor(const char* value, SkColor* colorPtr) { 465 unsigned int oldAlpha = SkColorGetA(*colorPtr); 466 if (value[0] == '#') { 467 uint32_t hex; 468 const char* end = SkParse::FindHex(value + 1, &hex); 469 // SkASSERT(end); 470 if (end == NULL) 471 return end; 472 size_t len = end - value - 1; 473 if (len == 3 || len == 4) { 474 unsigned a = len == 4 ? nib2byte(hex >> 12) : oldAlpha; 475 unsigned r = nib2byte((hex >> 8) & 0xF); 476 unsigned g = nib2byte((hex >> 4) & 0xF); 477 unsigned b = nib2byte(hex & 0xF); 478 *colorPtr = SkColorSetARGB(a, r, g, b); 479 return end; 480 } else if (len == 6 || len == 8) { 481 if (len == 6) 482 hex |= oldAlpha << 24; 483 *colorPtr = hex; 484 return end; 485 } else { 486 // SkASSERT(0); 487 return NULL; 488 } 489 // } else if (strchr(value, ',')) { 490 // SkScalar array[4]; 491 // int count = count_separators(value, ",") + 1; // !!! count commas, add 1 492 // SkASSERT(count == 3 || count == 4); 493 // array[0] = SK_Scalar1 * 255; 494 // const char* end = SkParse::FindScalars(value, &array[4 - count], count); 495 // if (end == NULL) 496 // return NULL; 497 // !!! range check for errors? 498 // *colorPtr = SkColorSetARGB(SkScalarRound(array[0]), SkScalarRound(array[1]), 499 // SkScalarRound(array[2]), SkScalarRound(array[3])); 500 // return end; 501 } else 502 return FindNamedColor(value, strlen(value), colorPtr); 503 } 504 505 #ifdef SK_SUPPORT_UNITTEST TestColor()506 void SkParse::TestColor() { 507 if (false) 508 CreateTable(); // regenerates data table in the output window 509 SkColor result; 510 int index; 511 for (index = 0; index < colorNamesSize; index++) { 512 result = SK_ColorBLACK; 513 SkNameRGB nameRGB = colorNames[index]; 514 SkASSERT(FindColor(nameRGB.name, &result) != NULL); 515 SkASSERT(result == (SkColor) (nameRGB.rgb | 0xFF000000)); 516 } 517 for (index = 0; index < colorNamesSize; index++) { 518 result = SK_ColorBLACK; 519 SkNameRGB nameRGB = colorNames[index]; 520 char bad[24]; 521 size_t len = strlen(nameRGB.name); 522 memcpy(bad, nameRGB.name, len); 523 bad[len - 1] -= 1; 524 SkASSERT(FindColor(bad, &result) == false); 525 bad[len - 1] += 2; 526 SkASSERT(FindColor(bad, &result) == false); 527 } 528 result = SK_ColorBLACK; 529 SkASSERT(FindColor("lightGrey", &result)); 530 SkASSERT(result == 0xffd3d3d3); 531 // SkASSERT(FindColor("12,34,56,78", &result)); 532 // SkASSERT(result == ((12 << 24) | (34 << 16) | (56 << 8) | (78 << 0))); 533 result = SK_ColorBLACK; 534 SkASSERT(FindColor("#ABCdef", &result)); 535 SkASSERT(result == 0XFFABCdef); 536 SkASSERT(FindColor("#12ABCdef", &result)); 537 SkASSERT(result == 0X12ABCdef); 538 result = SK_ColorBLACK; 539 SkASSERT(FindColor("#123", &result)); 540 SkASSERT(result == 0Xff112233); 541 SkASSERT(FindColor("#abcd", &result)); 542 SkASSERT(result == 0Xaabbccdd); 543 result = SK_ColorBLACK; 544 // SkASSERT(FindColor("71,162,253", &result)); 545 // SkASSERT(result == ((0xFF << 24) | (71 << 16) | (162 << 8) | (253 << 0))); 546 } 547 #endif 548 549