1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "ResourceType" 18 //#define LOG_NDEBUG 0 19 20 #include <androidfw/ByteBucketArray.h> 21 #include <androidfw/ResourceTypes.h> 22 #include <androidfw/TypeWrappers.h> 23 #include <utils/Atomic.h> 24 #include <utils/ByteOrder.h> 25 #include <utils/Debug.h> 26 #include <utils/Log.h> 27 #include <utils/String16.h> 28 #include <utils/String8.h> 29 30 #include <stdlib.h> 31 #include <string.h> 32 #include <memory.h> 33 #include <ctype.h> 34 #include <stdint.h> 35 #include <stddef.h> 36 37 #ifndef INT32_MAX 38 #define INT32_MAX ((int32_t)(2147483647)) 39 #endif 40 41 #define STRING_POOL_NOISY(x) //x 42 #define XML_NOISY(x) //x 43 #define TABLE_NOISY(x) //x 44 #define TABLE_GETENTRY(x) //x 45 #define TABLE_SUPER_NOISY(x) //x 46 #define LOAD_TABLE_NOISY(x) //x 47 #define TABLE_THEME(x) //x 48 #define LIB_NOISY(x) //x 49 50 namespace android { 51 52 #ifdef HAVE_WINSOCK 53 #undef nhtol 54 #undef htonl 55 56 #ifdef HAVE_LITTLE_ENDIAN 57 #define ntohl(x) ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) ) 58 #define htonl(x) ntohl(x) 59 #define ntohs(x) ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) ) 60 #define htons(x) ntohs(x) 61 #else 62 #define ntohl(x) (x) 63 #define htonl(x) (x) 64 #define ntohs(x) (x) 65 #define htons(x) (x) 66 #endif 67 #endif 68 69 #define IDMAP_MAGIC 0x504D4449 70 #define IDMAP_CURRENT_VERSION 0x00000001 71 72 #define APP_PACKAGE_ID 0x7f 73 #define SYS_PACKAGE_ID 0x01 74 75 // Standard C isspace() is only required to look at the low byte of its input, so 76 // produces incorrect results for UTF-16 characters. For safety's sake, assume that 77 // any high-byte UTF-16 code point is not whitespace. 78 inline int isspace16(char16_t c) { 79 return (c < 0x0080 && isspace(c)); 80 } 81 82 template<typename T> 83 inline static T max(T a, T b) { 84 return a > b ? a : b; 85 } 86 87 // range checked; guaranteed to NUL-terminate within the stated number of available slots 88 // NOTE: if this truncates the dst string due to running out of space, no attempt is 89 // made to avoid splitting surrogate pairs. 90 static void strcpy16_dtoh(char16_t* dst, const uint16_t* src, size_t avail) 91 { 92 char16_t* last = dst + avail - 1; 93 while (*src && (dst < last)) { 94 char16_t s = dtohs(static_cast<char16_t>(*src)); 95 *dst++ = s; 96 src++; 97 } 98 *dst = 0; 99 } 100 101 static status_t validate_chunk(const ResChunk_header* chunk, 102 size_t minSize, 103 const uint8_t* dataEnd, 104 const char* name) 105 { 106 const uint16_t headerSize = dtohs(chunk->headerSize); 107 const uint32_t size = dtohl(chunk->size); 108 109 if (headerSize >= minSize) { 110 if (headerSize <= size) { 111 if (((headerSize|size)&0x3) == 0) { 112 if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) { 113 return NO_ERROR; 114 } 115 ALOGW("%s data size 0x%x extends beyond resource end %p.", 116 name, size, (void*)(dataEnd-((const uint8_t*)chunk))); 117 return BAD_TYPE; 118 } 119 ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.", 120 name, (int)size, (int)headerSize); 121 return BAD_TYPE; 122 } 123 ALOGW("%s size 0x%x is smaller than header size 0x%x.", 124 name, size, headerSize); 125 return BAD_TYPE; 126 } 127 ALOGW("%s header size 0x%04x is too small.", 128 name, headerSize); 129 return BAD_TYPE; 130 } 131 132 static void fill9patchOffsets(Res_png_9patch* patch) { 133 patch->xDivsOffset = sizeof(Res_png_9patch); 134 patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t)); 135 patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t)); 136 } 137 138 inline void Res_value::copyFrom_dtoh(const Res_value& src) 139 { 140 size = dtohs(src.size); 141 res0 = src.res0; 142 dataType = src.dataType; 143 data = dtohl(src.data); 144 } 145 146 void Res_png_9patch::deviceToFile() 147 { 148 int32_t* xDivs = getXDivs(); 149 for (int i = 0; i < numXDivs; i++) { 150 xDivs[i] = htonl(xDivs[i]); 151 } 152 int32_t* yDivs = getYDivs(); 153 for (int i = 0; i < numYDivs; i++) { 154 yDivs[i] = htonl(yDivs[i]); 155 } 156 paddingLeft = htonl(paddingLeft); 157 paddingRight = htonl(paddingRight); 158 paddingTop = htonl(paddingTop); 159 paddingBottom = htonl(paddingBottom); 160 uint32_t* colors = getColors(); 161 for (int i=0; i<numColors; i++) { 162 colors[i] = htonl(colors[i]); 163 } 164 } 165 166 void Res_png_9patch::fileToDevice() 167 { 168 int32_t* xDivs = getXDivs(); 169 for (int i = 0; i < numXDivs; i++) { 170 xDivs[i] = ntohl(xDivs[i]); 171 } 172 int32_t* yDivs = getYDivs(); 173 for (int i = 0; i < numYDivs; i++) { 174 yDivs[i] = ntohl(yDivs[i]); 175 } 176 paddingLeft = ntohl(paddingLeft); 177 paddingRight = ntohl(paddingRight); 178 paddingTop = ntohl(paddingTop); 179 paddingBottom = ntohl(paddingBottom); 180 uint32_t* colors = getColors(); 181 for (int i=0; i<numColors; i++) { 182 colors[i] = ntohl(colors[i]); 183 } 184 } 185 186 size_t Res_png_9patch::serializedSize() const 187 { 188 // The size of this struct is 32 bytes on the 32-bit target system 189 // 4 * int8_t 190 // 4 * int32_t 191 // 3 * uint32_t 192 return 32 193 + numXDivs * sizeof(int32_t) 194 + numYDivs * sizeof(int32_t) 195 + numColors * sizeof(uint32_t); 196 } 197 198 void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 199 const int32_t* yDivs, const uint32_t* colors) 200 { 201 // Use calloc since we're going to leave a few holes in the data 202 // and want this to run cleanly under valgrind 203 void* newData = calloc(1, patch.serializedSize()); 204 serialize(patch, xDivs, yDivs, colors, newData); 205 return newData; 206 } 207 208 void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs, 209 const int32_t* yDivs, const uint32_t* colors, void* outData) 210 { 211 uint8_t* data = (uint8_t*) outData; 212 memcpy(data, &patch.wasDeserialized, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors 213 memcpy(data + 12, &patch.paddingLeft, 16); // copy paddingXXXX 214 data += 32; 215 216 memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t)); 217 data += patch.numXDivs * sizeof(int32_t); 218 memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t)); 219 data += patch.numYDivs * sizeof(int32_t); 220 memcpy(data, colors, patch.numColors * sizeof(uint32_t)); 221 222 fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData)); 223 } 224 225 static bool assertIdmapHeader(const void* idmap, size_t size) { 226 if (reinterpret_cast<uintptr_t>(idmap) & 0x03) { 227 ALOGE("idmap: header is not word aligned"); 228 return false; 229 } 230 231 if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) { 232 ALOGW("idmap: header too small (%d bytes)", (uint32_t) size); 233 return false; 234 } 235 236 const uint32_t magic = htodl(*reinterpret_cast<const uint32_t*>(idmap)); 237 if (magic != IDMAP_MAGIC) { 238 ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)", 239 magic, IDMAP_MAGIC); 240 return false; 241 } 242 243 const uint32_t version = htodl(*(reinterpret_cast<const uint32_t*>(idmap) + 1)); 244 if (version != IDMAP_CURRENT_VERSION) { 245 // We are strict about versions because files with this format are 246 // auto-generated and don't need backwards compatibility. 247 ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)", 248 version, IDMAP_CURRENT_VERSION); 249 return false; 250 } 251 return true; 252 } 253 254 class IdmapEntries { 255 public: 256 IdmapEntries() : mData(NULL) {} 257 258 bool hasEntries() const { 259 if (mData == NULL) { 260 return false; 261 } 262 263 return (dtohs(*mData) > 0); 264 } 265 266 size_t byteSize() const { 267 if (mData == NULL) { 268 return 0; 269 } 270 uint16_t entryCount = dtohs(mData[2]); 271 return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount)); 272 } 273 274 uint8_t targetTypeId() const { 275 if (mData == NULL) { 276 return 0; 277 } 278 return dtohs(mData[0]); 279 } 280 281 uint8_t overlayTypeId() const { 282 if (mData == NULL) { 283 return 0; 284 } 285 return dtohs(mData[1]); 286 } 287 288 status_t setTo(const void* entryHeader, size_t size) { 289 if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) { 290 ALOGE("idmap: entry header is not word aligned"); 291 return UNKNOWN_ERROR; 292 } 293 294 if (size < sizeof(uint16_t) * 4) { 295 ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size); 296 return UNKNOWN_ERROR; 297 } 298 299 const uint16_t* header = reinterpret_cast<const uint16_t*>(entryHeader); 300 const uint16_t targetTypeId = dtohs(header[0]); 301 const uint16_t overlayTypeId = dtohs(header[1]); 302 if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 || overlayTypeId > 255) { 303 ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId); 304 return UNKNOWN_ERROR; 305 } 306 307 uint16_t entryCount = dtohs(header[2]); 308 if (size < sizeof(uint32_t) * (entryCount + 2)) { 309 ALOGE("idmap: too small (%u bytes) for the number of entries (%u)", 310 (uint32_t) size, (uint32_t) entryCount); 311 return UNKNOWN_ERROR; 312 } 313 mData = header; 314 return NO_ERROR; 315 } 316 317 status_t lookup(uint16_t entryId, uint16_t* outEntryId) const { 318 uint16_t entryCount = dtohs(mData[2]); 319 uint16_t offset = dtohs(mData[3]); 320 321 if (entryId < offset) { 322 // The entry is not present in this idmap 323 return BAD_INDEX; 324 } 325 326 entryId -= offset; 327 328 if (entryId >= entryCount) { 329 // The entry is not present in this idmap 330 return BAD_INDEX; 331 } 332 333 // It is safe to access the type here without checking the size because 334 // we have checked this when it was first loaded. 335 const uint32_t* entries = reinterpret_cast<const uint32_t*>(mData) + 2; 336 uint32_t mappedEntry = dtohl(entries[entryId]); 337 if (mappedEntry == 0xffffffff) { 338 // This entry is not present in this idmap 339 return BAD_INDEX; 340 } 341 *outEntryId = static_cast<uint16_t>(mappedEntry); 342 return NO_ERROR; 343 } 344 345 private: 346 const uint16_t* mData; 347 }; 348 349 status_t parseIdmap(const void* idmap, size_t size, uint8_t* outPackageId, KeyedVector<uint8_t, IdmapEntries>* outMap) { 350 if (!assertIdmapHeader(idmap, size)) { 351 return UNKNOWN_ERROR; 352 } 353 354 size -= ResTable::IDMAP_HEADER_SIZE_BYTES; 355 if (size < sizeof(uint16_t) * 2) { 356 ALOGE("idmap: too small to contain any mapping"); 357 return UNKNOWN_ERROR; 358 } 359 360 const uint16_t* data = reinterpret_cast<const uint16_t*>( 361 reinterpret_cast<const uint8_t*>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES); 362 363 uint16_t targetPackageId = dtohs(*(data++)); 364 if (targetPackageId == 0 || targetPackageId > 255) { 365 ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId); 366 return UNKNOWN_ERROR; 367 } 368 369 uint16_t mapCount = dtohs(*(data++)); 370 if (mapCount == 0) { 371 ALOGE("idmap: no mappings"); 372 return UNKNOWN_ERROR; 373 } 374 375 if (mapCount > 255) { 376 ALOGW("idmap: too many mappings. Only 255 are possible but %u are present", (uint32_t) mapCount); 377 } 378 379 while (size > sizeof(uint16_t) * 4) { 380 IdmapEntries entries; 381 status_t err = entries.setTo(data, size); 382 if (err != NO_ERROR) { 383 return err; 384 } 385 386 ssize_t index = outMap->add(entries.overlayTypeId(), entries); 387 if (index < 0) { 388 return NO_MEMORY; 389 } 390 391 data += entries.byteSize() / sizeof(uint16_t); 392 size -= entries.byteSize(); 393 } 394 395 if (outPackageId != NULL) { 396 *outPackageId = static_cast<uint8_t>(targetPackageId); 397 } 398 return NO_ERROR; 399 } 400 401 Res_png_9patch* Res_png_9patch::deserialize(void* inData) 402 { 403 404 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData); 405 patch->wasDeserialized = true; 406 fill9patchOffsets(patch); 407 408 return patch; 409 } 410 411 // -------------------------------------------------------------------- 412 // -------------------------------------------------------------------- 413 // -------------------------------------------------------------------- 414 415 ResStringPool::ResStringPool() 416 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 417 { 418 } 419 420 ResStringPool::ResStringPool(const void* data, size_t size, bool copyData) 421 : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL) 422 { 423 setTo(data, size, copyData); 424 } 425 426 ResStringPool::~ResStringPool() 427 { 428 uninit(); 429 } 430 431 void ResStringPool::setToEmpty() 432 { 433 uninit(); 434 435 mOwnedData = calloc(1, sizeof(ResStringPool_header)); 436 ResStringPool_header* header = (ResStringPool_header*) mOwnedData; 437 mSize = 0; 438 mEntries = NULL; 439 mStrings = NULL; 440 mStringPoolSize = 0; 441 mEntryStyles = NULL; 442 mStyles = NULL; 443 mStylePoolSize = 0; 444 mHeader = (const ResStringPool_header*) header; 445 } 446 447 status_t ResStringPool::setTo(const void* data, size_t size, bool copyData) 448 { 449 if (!data || !size) { 450 return (mError=BAD_TYPE); 451 } 452 453 uninit(); 454 455 const bool notDeviceEndian = htods(0xf0) != 0xf0; 456 457 if (copyData || notDeviceEndian) { 458 mOwnedData = malloc(size); 459 if (mOwnedData == NULL) { 460 return (mError=NO_MEMORY); 461 } 462 memcpy(mOwnedData, data, size); 463 data = mOwnedData; 464 } 465 466 mHeader = (const ResStringPool_header*)data; 467 468 if (notDeviceEndian) { 469 ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader); 470 h->header.headerSize = dtohs(mHeader->header.headerSize); 471 h->header.type = dtohs(mHeader->header.type); 472 h->header.size = dtohl(mHeader->header.size); 473 h->stringCount = dtohl(mHeader->stringCount); 474 h->styleCount = dtohl(mHeader->styleCount); 475 h->flags = dtohl(mHeader->flags); 476 h->stringsStart = dtohl(mHeader->stringsStart); 477 h->stylesStart = dtohl(mHeader->stylesStart); 478 } 479 480 if (mHeader->header.headerSize > mHeader->header.size 481 || mHeader->header.size > size) { 482 ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n", 483 (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size); 484 return (mError=BAD_TYPE); 485 } 486 mSize = mHeader->header.size; 487 mEntries = (const uint32_t*) 488 (((const uint8_t*)data)+mHeader->header.headerSize); 489 490 if (mHeader->stringCount > 0) { 491 if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount) // uint32 overflow? 492 || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))) 493 > size) { 494 ALOGW("Bad string block: entry of %d items extends past data size %d\n", 495 (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))), 496 (int)size); 497 return (mError=BAD_TYPE); 498 } 499 500 size_t charSize; 501 if (mHeader->flags&ResStringPool_header::UTF8_FLAG) { 502 charSize = sizeof(uint8_t); 503 } else { 504 charSize = sizeof(uint16_t); 505 } 506 507 // There should be at least space for the smallest string 508 // (2 bytes length, null terminator). 509 if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) { 510 ALOGW("Bad string block: string pool starts at %d, after total size %d\n", 511 (int)mHeader->stringsStart, (int)mHeader->header.size); 512 return (mError=BAD_TYPE); 513 } 514 515 mStrings = (const void*) 516 (((const uint8_t*)data) + mHeader->stringsStart); 517 518 if (mHeader->styleCount == 0) { 519 mStringPoolSize = (mSize - mHeader->stringsStart) / charSize; 520 } else { 521 // check invariant: styles starts before end of data 522 if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) { 523 ALOGW("Bad style block: style block starts at %d past data size of %d\n", 524 (int)mHeader->stylesStart, (int)mHeader->header.size); 525 return (mError=BAD_TYPE); 526 } 527 // check invariant: styles follow the strings 528 if (mHeader->stylesStart <= mHeader->stringsStart) { 529 ALOGW("Bad style block: style block starts at %d, before strings at %d\n", 530 (int)mHeader->stylesStart, (int)mHeader->stringsStart); 531 return (mError=BAD_TYPE); 532 } 533 mStringPoolSize = 534 (mHeader->stylesStart-mHeader->stringsStart)/charSize; 535 } 536 537 // check invariant: stringCount > 0 requires a string pool to exist 538 if (mStringPoolSize == 0) { 539 ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount); 540 return (mError=BAD_TYPE); 541 } 542 543 if (notDeviceEndian) { 544 size_t i; 545 uint32_t* e = const_cast<uint32_t*>(mEntries); 546 for (i=0; i<mHeader->stringCount; i++) { 547 e[i] = dtohl(mEntries[i]); 548 } 549 if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) { 550 const uint16_t* strings = (const uint16_t*)mStrings; 551 uint16_t* s = const_cast<uint16_t*>(strings); 552 for (i=0; i<mStringPoolSize; i++) { 553 s[i] = dtohs(strings[i]); 554 } 555 } 556 } 557 558 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG && 559 ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) || 560 (!mHeader->flags&ResStringPool_header::UTF8_FLAG && 561 ((uint16_t*)mStrings)[mStringPoolSize-1] != 0)) { 562 ALOGW("Bad string block: last string is not 0-terminated\n"); 563 return (mError=BAD_TYPE); 564 } 565 } else { 566 mStrings = NULL; 567 mStringPoolSize = 0; 568 } 569 570 if (mHeader->styleCount > 0) { 571 mEntryStyles = mEntries + mHeader->stringCount; 572 // invariant: integer overflow in calculating mEntryStyles 573 if (mEntryStyles < mEntries) { 574 ALOGW("Bad string block: integer overflow finding styles\n"); 575 return (mError=BAD_TYPE); 576 } 577 578 if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) { 579 ALOGW("Bad string block: entry of %d styles extends past data size %d\n", 580 (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader), 581 (int)size); 582 return (mError=BAD_TYPE); 583 } 584 mStyles = (const uint32_t*) 585 (((const uint8_t*)data)+mHeader->stylesStart); 586 if (mHeader->stylesStart >= mHeader->header.size) { 587 ALOGW("Bad string block: style pool starts %d, after total size %d\n", 588 (int)mHeader->stylesStart, (int)mHeader->header.size); 589 return (mError=BAD_TYPE); 590 } 591 mStylePoolSize = 592 (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t); 593 594 if (notDeviceEndian) { 595 size_t i; 596 uint32_t* e = const_cast<uint32_t*>(mEntryStyles); 597 for (i=0; i<mHeader->styleCount; i++) { 598 e[i] = dtohl(mEntryStyles[i]); 599 } 600 uint32_t* s = const_cast<uint32_t*>(mStyles); 601 for (i=0; i<mStylePoolSize; i++) { 602 s[i] = dtohl(mStyles[i]); 603 } 604 } 605 606 const ResStringPool_span endSpan = { 607 { htodl(ResStringPool_span::END) }, 608 htodl(ResStringPool_span::END), htodl(ResStringPool_span::END) 609 }; 610 if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))], 611 &endSpan, sizeof(endSpan)) != 0) { 612 ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n"); 613 return (mError=BAD_TYPE); 614 } 615 } else { 616 mEntryStyles = NULL; 617 mStyles = NULL; 618 mStylePoolSize = 0; 619 } 620 621 return (mError=NO_ERROR); 622 } 623 624 status_t ResStringPool::getError() const 625 { 626 return mError; 627 } 628 629 void ResStringPool::uninit() 630 { 631 mError = NO_INIT; 632 if (mHeader != NULL && mCache != NULL) { 633 for (size_t x = 0; x < mHeader->stringCount; x++) { 634 if (mCache[x] != NULL) { 635 free(mCache[x]); 636 mCache[x] = NULL; 637 } 638 } 639 free(mCache); 640 mCache = NULL; 641 } 642 if (mOwnedData) { 643 free(mOwnedData); 644 mOwnedData = NULL; 645 } 646 } 647 648 /** 649 * Strings in UTF-16 format have length indicated by a length encoded in the 650 * stored data. It is either 1 or 2 characters of length data. This allows a 651 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that 652 * much data in a string, you're abusing them. 653 * 654 * If the high bit is set, then there are two characters or 4 bytes of length 655 * data encoded. In that case, drop the high bit of the first character and 656 * add it together with the next character. 657 */ 658 static inline size_t 659 decodeLength(const uint16_t** str) 660 { 661 size_t len = **str; 662 if ((len & 0x8000) != 0) { 663 (*str)++; 664 len = ((len & 0x7FFF) << 16) | **str; 665 } 666 (*str)++; 667 return len; 668 } 669 670 /** 671 * Strings in UTF-8 format have length indicated by a length encoded in the 672 * stored data. It is either 1 or 2 characters of length data. This allows a 673 * maximum length of 0x7FFF (32767 bytes), but you should consider storing 674 * text in another way if you're using that much data in a single string. 675 * 676 * If the high bit is set, then there are two characters or 2 bytes of length 677 * data encoded. In that case, drop the high bit of the first character and 678 * add it together with the next character. 679 */ 680 static inline size_t 681 decodeLength(const uint8_t** str) 682 { 683 size_t len = **str; 684 if ((len & 0x80) != 0) { 685 (*str)++; 686 len = ((len & 0x7F) << 8) | **str; 687 } 688 (*str)++; 689 return len; 690 } 691 692 const char16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const 693 { 694 if (mError == NO_ERROR && idx < mHeader->stringCount) { 695 const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0; 696 const uint32_t off = mEntries[idx]/(isUTF8?sizeof(uint8_t):sizeof(uint16_t)); 697 if (off < (mStringPoolSize-1)) { 698 if (!isUTF8) { 699 const uint16_t* strings = (uint16_t*)mStrings; 700 const uint16_t* str = strings+off; 701 702 *u16len = decodeLength(&str); 703 if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) { 704 return reinterpret_cast<const char16_t*>(str); 705 } else { 706 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 707 (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize); 708 } 709 } else { 710 const uint8_t* strings = (uint8_t*)mStrings; 711 const uint8_t* u8str = strings+off; 712 713 *u16len = decodeLength(&u8str); 714 size_t u8len = decodeLength(&u8str); 715 716 // encLen must be less than 0x7FFF due to encoding. 717 if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) { 718 AutoMutex lock(mDecodeLock); 719 720 if (mCache == NULL) { 721 #ifndef HAVE_ANDROID_OS 722 STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes", 723 mHeader->stringCount*sizeof(char16_t**))); 724 #else 725 // We do not want to be in this case when actually running Android. 726 ALOGW("CREATING STRING CACHE OF %d bytes", 727 mHeader->stringCount*sizeof(char16_t**)); 728 #endif 729 mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**)); 730 if (mCache == NULL) { 731 ALOGW("No memory trying to allocate decode cache table of %d bytes\n", 732 (int)(mHeader->stringCount*sizeof(char16_t**))); 733 return NULL; 734 } 735 } 736 737 if (mCache[idx] != NULL) { 738 return mCache[idx]; 739 } 740 741 ssize_t actualLen = utf8_to_utf16_length(u8str, u8len); 742 if (actualLen < 0 || (size_t)actualLen != *u16len) { 743 ALOGW("Bad string block: string #%lld decoded length is not correct " 744 "%lld vs %llu\n", 745 (long long)idx, (long long)actualLen, (long long)*u16len); 746 return NULL; 747 } 748 749 char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t)); 750 if (!u16str) { 751 ALOGW("No memory when trying to allocate decode cache for string #%d\n", 752 (int)idx); 753 return NULL; 754 } 755 756 STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str)); 757 utf8_to_utf16(u8str, u8len, u16str); 758 mCache[idx] = u16str; 759 return u16str; 760 } else { 761 ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n", 762 (long long)idx, (long long)(u8str+u8len-strings), 763 (long long)mStringPoolSize); 764 } 765 } 766 } else { 767 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 768 (int)idx, (int)(off*sizeof(uint16_t)), 769 (int)(mStringPoolSize*sizeof(uint16_t))); 770 } 771 } 772 return NULL; 773 } 774 775 const char* ResStringPool::string8At(size_t idx, size_t* outLen) const 776 { 777 if (mError == NO_ERROR && idx < mHeader->stringCount) { 778 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) { 779 return NULL; 780 } 781 const uint32_t off = mEntries[idx]/sizeof(char); 782 if (off < (mStringPoolSize-1)) { 783 const uint8_t* strings = (uint8_t*)mStrings; 784 const uint8_t* str = strings+off; 785 *outLen = decodeLength(&str); 786 size_t encLen = decodeLength(&str); 787 if ((uint32_t)(str+encLen-strings) < mStringPoolSize) { 788 return (const char*)str; 789 } else { 790 ALOGW("Bad string block: string #%d extends to %d, past end at %d\n", 791 (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize); 792 } 793 } else { 794 ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n", 795 (int)idx, (int)(off*sizeof(uint16_t)), 796 (int)(mStringPoolSize*sizeof(uint16_t))); 797 } 798 } 799 return NULL; 800 } 801 802 const String8 ResStringPool::string8ObjectAt(size_t idx) const 803 { 804 size_t len; 805 const char *str = string8At(idx, &len); 806 if (str != NULL) { 807 return String8(str, len); 808 } 809 810 const char16_t *str16 = stringAt(idx, &len); 811 if (str16 != NULL) { 812 return String8(str16, len); 813 } 814 return String8(); 815 } 816 817 const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const 818 { 819 return styleAt(ref.index); 820 } 821 822 const ResStringPool_span* ResStringPool::styleAt(size_t idx) const 823 { 824 if (mError == NO_ERROR && idx < mHeader->styleCount) { 825 const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t)); 826 if (off < mStylePoolSize) { 827 return (const ResStringPool_span*)(mStyles+off); 828 } else { 829 ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n", 830 (int)idx, (int)(off*sizeof(uint32_t)), 831 (int)(mStylePoolSize*sizeof(uint32_t))); 832 } 833 } 834 return NULL; 835 } 836 837 ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const 838 { 839 if (mError != NO_ERROR) { 840 return mError; 841 } 842 843 size_t len; 844 845 if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) { 846 STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string())); 847 848 // The string pool contains UTF 8 strings; we don't want to cause 849 // temporary UTF-16 strings to be created as we search. 850 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 851 // Do a binary search for the string... this is a little tricky, 852 // because the strings are sorted with strzcmp16(). So to match 853 // the ordering, we need to convert strings in the pool to UTF-16. 854 // But we don't want to hit the cache, so instead we will have a 855 // local temporary allocation for the conversions. 856 char16_t* convBuffer = (char16_t*)malloc(strLen+4); 857 ssize_t l = 0; 858 ssize_t h = mHeader->stringCount-1; 859 860 ssize_t mid; 861 while (l <= h) { 862 mid = l + (h - l)/2; 863 const uint8_t* s = (const uint8_t*)string8At(mid, &len); 864 int c; 865 if (s != NULL) { 866 char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3); 867 *end = 0; 868 c = strzcmp16(convBuffer, end-convBuffer, str, strLen); 869 } else { 870 c = -1; 871 } 872 STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 873 (const char*)s, c, (int)l, (int)mid, (int)h)); 874 if (c == 0) { 875 STRING_POOL_NOISY(ALOGI("MATCH!")); 876 free(convBuffer); 877 return mid; 878 } else if (c < 0) { 879 l = mid + 1; 880 } else { 881 h = mid - 1; 882 } 883 } 884 free(convBuffer); 885 } else { 886 // It is unusual to get the ID from an unsorted string block... 887 // most often this happens because we want to get IDs for style 888 // span tags; since those always appear at the end of the string 889 // block, start searching at the back. 890 String8 str8(str, strLen); 891 const size_t str8Len = str8.size(); 892 for (int i=mHeader->stringCount-1; i>=0; i--) { 893 const char* s = string8At(i, &len); 894 STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n", 895 String8(s).string(), 896 i)); 897 if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) { 898 STRING_POOL_NOISY(ALOGI("MATCH!")); 899 return i; 900 } 901 } 902 } 903 904 } else { 905 STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string())); 906 907 if (mHeader->flags&ResStringPool_header::SORTED_FLAG) { 908 // Do a binary search for the string... 909 ssize_t l = 0; 910 ssize_t h = mHeader->stringCount-1; 911 912 ssize_t mid; 913 while (l <= h) { 914 mid = l + (h - l)/2; 915 const char16_t* s = stringAt(mid, &len); 916 int c = s ? strzcmp16(s, len, str, strLen) : -1; 917 STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n", 918 String8(s).string(), 919 c, (int)l, (int)mid, (int)h)); 920 if (c == 0) { 921 STRING_POOL_NOISY(ALOGI("MATCH!")); 922 return mid; 923 } else if (c < 0) { 924 l = mid + 1; 925 } else { 926 h = mid - 1; 927 } 928 } 929 } else { 930 // It is unusual to get the ID from an unsorted string block... 931 // most often this happens because we want to get IDs for style 932 // span tags; since those always appear at the end of the string 933 // block, start searching at the back. 934 for (int i=mHeader->stringCount-1; i>=0; i--) { 935 const char16_t* s = stringAt(i, &len); 936 STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n", 937 String8(s).string(), 938 i)); 939 if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) { 940 STRING_POOL_NOISY(ALOGI("MATCH!")); 941 return i; 942 } 943 } 944 } 945 } 946 947 return NAME_NOT_FOUND; 948 } 949 950 size_t ResStringPool::size() const 951 { 952 return (mError == NO_ERROR) ? mHeader->stringCount : 0; 953 } 954 955 size_t ResStringPool::styleCount() const 956 { 957 return (mError == NO_ERROR) ? mHeader->styleCount : 0; 958 } 959 960 size_t ResStringPool::bytes() const 961 { 962 return (mError == NO_ERROR) ? mHeader->header.size : 0; 963 } 964 965 bool ResStringPool::isSorted() const 966 { 967 return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0; 968 } 969 970 bool ResStringPool::isUTF8() const 971 { 972 return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0; 973 } 974 975 // -------------------------------------------------------------------- 976 // -------------------------------------------------------------------- 977 // -------------------------------------------------------------------- 978 979 ResXMLParser::ResXMLParser(const ResXMLTree& tree) 980 : mTree(tree), mEventCode(BAD_DOCUMENT) 981 { 982 } 983 984 void ResXMLParser::restart() 985 { 986 mCurNode = NULL; 987 mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT; 988 } 989 const ResStringPool& ResXMLParser::getStrings() const 990 { 991 return mTree.mStrings; 992 } 993 994 ResXMLParser::event_code_t ResXMLParser::getEventType() const 995 { 996 return mEventCode; 997 } 998 999 ResXMLParser::event_code_t ResXMLParser::next() 1000 { 1001 if (mEventCode == START_DOCUMENT) { 1002 mCurNode = mTree.mRootNode; 1003 mCurExt = mTree.mRootExt; 1004 return (mEventCode=mTree.mRootCode); 1005 } else if (mEventCode >= FIRST_CHUNK_CODE) { 1006 return nextNode(); 1007 } 1008 return mEventCode; 1009 } 1010 1011 int32_t ResXMLParser::getCommentID() const 1012 { 1013 return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1; 1014 } 1015 1016 const char16_t* ResXMLParser::getComment(size_t* outLen) const 1017 { 1018 int32_t id = getCommentID(); 1019 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1020 } 1021 1022 uint32_t ResXMLParser::getLineNumber() const 1023 { 1024 return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1; 1025 } 1026 1027 int32_t ResXMLParser::getTextID() const 1028 { 1029 if (mEventCode == TEXT) { 1030 return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index); 1031 } 1032 return -1; 1033 } 1034 1035 const char16_t* ResXMLParser::getText(size_t* outLen) const 1036 { 1037 int32_t id = getTextID(); 1038 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1039 } 1040 1041 ssize_t ResXMLParser::getTextValue(Res_value* outValue) const 1042 { 1043 if (mEventCode == TEXT) { 1044 outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData); 1045 return sizeof(Res_value); 1046 } 1047 return BAD_TYPE; 1048 } 1049 1050 int32_t ResXMLParser::getNamespacePrefixID() const 1051 { 1052 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1053 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index); 1054 } 1055 return -1; 1056 } 1057 1058 const char16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const 1059 { 1060 int32_t id = getNamespacePrefixID(); 1061 //printf("prefix=%d event=%p\n", id, mEventCode); 1062 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1063 } 1064 1065 int32_t ResXMLParser::getNamespaceUriID() const 1066 { 1067 if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) { 1068 return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index); 1069 } 1070 return -1; 1071 } 1072 1073 const char16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const 1074 { 1075 int32_t id = getNamespaceUriID(); 1076 //printf("uri=%d event=%p\n", id, mEventCode); 1077 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1078 } 1079 1080 int32_t ResXMLParser::getElementNamespaceID() const 1081 { 1082 if (mEventCode == START_TAG) { 1083 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index); 1084 } 1085 if (mEventCode == END_TAG) { 1086 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index); 1087 } 1088 return -1; 1089 } 1090 1091 const char16_t* ResXMLParser::getElementNamespace(size_t* outLen) const 1092 { 1093 int32_t id = getElementNamespaceID(); 1094 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1095 } 1096 1097 int32_t ResXMLParser::getElementNameID() const 1098 { 1099 if (mEventCode == START_TAG) { 1100 return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index); 1101 } 1102 if (mEventCode == END_TAG) { 1103 return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index); 1104 } 1105 return -1; 1106 } 1107 1108 const char16_t* ResXMLParser::getElementName(size_t* outLen) const 1109 { 1110 int32_t id = getElementNameID(); 1111 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1112 } 1113 1114 size_t ResXMLParser::getAttributeCount() const 1115 { 1116 if (mEventCode == START_TAG) { 1117 return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount); 1118 } 1119 return 0; 1120 } 1121 1122 int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const 1123 { 1124 if (mEventCode == START_TAG) { 1125 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1126 if (idx < dtohs(tag->attributeCount)) { 1127 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1128 (((const uint8_t*)tag) 1129 + dtohs(tag->attributeStart) 1130 + (dtohs(tag->attributeSize)*idx)); 1131 return dtohl(attr->ns.index); 1132 } 1133 } 1134 return -2; 1135 } 1136 1137 const char16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const 1138 { 1139 int32_t id = getAttributeNamespaceID(idx); 1140 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1141 //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id)); 1142 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1143 } 1144 1145 const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const 1146 { 1147 int32_t id = getAttributeNamespaceID(idx); 1148 //printf("attribute namespace=%d idx=%d event=%p\n", id, idx, mEventCode); 1149 //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id)); 1150 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1151 } 1152 1153 int32_t ResXMLParser::getAttributeNameID(size_t idx) const 1154 { 1155 if (mEventCode == START_TAG) { 1156 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1157 if (idx < dtohs(tag->attributeCount)) { 1158 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1159 (((const uint8_t*)tag) 1160 + dtohs(tag->attributeStart) 1161 + (dtohs(tag->attributeSize)*idx)); 1162 return dtohl(attr->name.index); 1163 } 1164 } 1165 return -1; 1166 } 1167 1168 const char16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const 1169 { 1170 int32_t id = getAttributeNameID(idx); 1171 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1172 //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id)); 1173 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1174 } 1175 1176 const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const 1177 { 1178 int32_t id = getAttributeNameID(idx); 1179 //printf("attribute name=%d idx=%d event=%p\n", id, idx, mEventCode); 1180 //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id)); 1181 return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL; 1182 } 1183 1184 uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const 1185 { 1186 int32_t id = getAttributeNameID(idx); 1187 if (id >= 0 && (size_t)id < mTree.mNumResIds) { 1188 uint32_t resId = dtohl(mTree.mResIds[id]); 1189 if (mTree.mDynamicRefTable != NULL) { 1190 mTree.mDynamicRefTable->lookupResourceId(&resId); 1191 } 1192 return resId; 1193 } 1194 return 0; 1195 } 1196 1197 int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const 1198 { 1199 if (mEventCode == START_TAG) { 1200 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1201 if (idx < dtohs(tag->attributeCount)) { 1202 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1203 (((const uint8_t*)tag) 1204 + dtohs(tag->attributeStart) 1205 + (dtohs(tag->attributeSize)*idx)); 1206 return dtohl(attr->rawValue.index); 1207 } 1208 } 1209 return -1; 1210 } 1211 1212 const char16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const 1213 { 1214 int32_t id = getAttributeValueStringID(idx); 1215 //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id)); 1216 return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL; 1217 } 1218 1219 int32_t ResXMLParser::getAttributeDataType(size_t idx) const 1220 { 1221 if (mEventCode == START_TAG) { 1222 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1223 if (idx < dtohs(tag->attributeCount)) { 1224 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1225 (((const uint8_t*)tag) 1226 + dtohs(tag->attributeStart) 1227 + (dtohs(tag->attributeSize)*idx)); 1228 uint8_t type = attr->typedValue.dataType; 1229 if (type != Res_value::TYPE_DYNAMIC_REFERENCE) { 1230 return type; 1231 } 1232 1233 // This is a dynamic reference. We adjust those references 1234 // to regular references at this level, so lie to the caller. 1235 return Res_value::TYPE_REFERENCE; 1236 } 1237 } 1238 return Res_value::TYPE_NULL; 1239 } 1240 1241 int32_t ResXMLParser::getAttributeData(size_t idx) const 1242 { 1243 if (mEventCode == START_TAG) { 1244 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1245 if (idx < dtohs(tag->attributeCount)) { 1246 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1247 (((const uint8_t*)tag) 1248 + dtohs(tag->attributeStart) 1249 + (dtohs(tag->attributeSize)*idx)); 1250 if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE || 1251 mTree.mDynamicRefTable == NULL) { 1252 return dtohl(attr->typedValue.data); 1253 } 1254 1255 uint32_t data = dtohl(attr->typedValue.data); 1256 if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) { 1257 return data; 1258 } 1259 } 1260 } 1261 return 0; 1262 } 1263 1264 ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const 1265 { 1266 if (mEventCode == START_TAG) { 1267 const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt; 1268 if (idx < dtohs(tag->attributeCount)) { 1269 const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*) 1270 (((const uint8_t*)tag) 1271 + dtohs(tag->attributeStart) 1272 + (dtohs(tag->attributeSize)*idx)); 1273 outValue->copyFrom_dtoh(attr->typedValue); 1274 if (mTree.mDynamicRefTable != NULL && 1275 mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) { 1276 return BAD_TYPE; 1277 } 1278 return sizeof(Res_value); 1279 } 1280 } 1281 return BAD_TYPE; 1282 } 1283 1284 ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const 1285 { 1286 String16 nsStr(ns != NULL ? ns : ""); 1287 String16 attrStr(attr); 1288 return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0, 1289 attrStr.string(), attrStr.size()); 1290 } 1291 1292 ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen, 1293 const char16_t* attr, size_t attrLen) const 1294 { 1295 if (mEventCode == START_TAG) { 1296 if (attr == NULL) { 1297 return NAME_NOT_FOUND; 1298 } 1299 const size_t N = getAttributeCount(); 1300 if (mTree.mStrings.isUTF8()) { 1301 String8 ns8, attr8; 1302 if (ns != NULL) { 1303 ns8 = String8(ns, nsLen); 1304 } 1305 attr8 = String8(attr, attrLen); 1306 STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen, 1307 attr8.string(), attrLen)); 1308 for (size_t i=0; i<N; i++) { 1309 size_t curNsLen = 0, curAttrLen = 0; 1310 const char* curNs = getAttributeNamespace8(i, &curNsLen); 1311 const char* curAttr = getAttributeName8(i, &curAttrLen); 1312 STRING_POOL_NOISY(ALOGI(" curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen, 1313 curAttr, curAttrLen)); 1314 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1315 && memcmp(attr8.string(), curAttr, attrLen) == 0) { 1316 if (ns == NULL) { 1317 if (curNs == NULL) { 1318 STRING_POOL_NOISY(ALOGI(" FOUND!")); 1319 return i; 1320 } 1321 } else if (curNs != NULL) { 1322 //printf(" --> ns=%s, curNs=%s\n", 1323 // String8(ns).string(), String8(curNs).string()); 1324 if (memcmp(ns8.string(), curNs, nsLen) == 0) { 1325 STRING_POOL_NOISY(ALOGI(" FOUND!")); 1326 return i; 1327 } 1328 } 1329 } 1330 } 1331 } else { 1332 STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)", 1333 String8(ns, nsLen).string(), nsLen, 1334 String8(attr, attrLen).string(), attrLen)); 1335 for (size_t i=0; i<N; i++) { 1336 size_t curNsLen = 0, curAttrLen = 0; 1337 const char16_t* curNs = getAttributeNamespace(i, &curNsLen); 1338 const char16_t* curAttr = getAttributeName(i, &curAttrLen); 1339 STRING_POOL_NOISY(ALOGI(" curNs=%s (%d), curAttr=%s (%d)", 1340 String8(curNs, curNsLen).string(), curNsLen, 1341 String8(curAttr, curAttrLen).string(), curAttrLen)); 1342 if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen 1343 && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) { 1344 if (ns == NULL) { 1345 if (curNs == NULL) { 1346 STRING_POOL_NOISY(ALOGI(" FOUND!")); 1347 return i; 1348 } 1349 } else if (curNs != NULL) { 1350 //printf(" --> ns=%s, curNs=%s\n", 1351 // String8(ns).string(), String8(curNs).string()); 1352 if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) { 1353 STRING_POOL_NOISY(ALOGI(" FOUND!")); 1354 return i; 1355 } 1356 } 1357 } 1358 } 1359 } 1360 } 1361 1362 return NAME_NOT_FOUND; 1363 } 1364 1365 ssize_t ResXMLParser::indexOfID() const 1366 { 1367 if (mEventCode == START_TAG) { 1368 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex); 1369 if (idx > 0) return (idx-1); 1370 } 1371 return NAME_NOT_FOUND; 1372 } 1373 1374 ssize_t ResXMLParser::indexOfClass() const 1375 { 1376 if (mEventCode == START_TAG) { 1377 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex); 1378 if (idx > 0) return (idx-1); 1379 } 1380 return NAME_NOT_FOUND; 1381 } 1382 1383 ssize_t ResXMLParser::indexOfStyle() const 1384 { 1385 if (mEventCode == START_TAG) { 1386 const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex); 1387 if (idx > 0) return (idx-1); 1388 } 1389 return NAME_NOT_FOUND; 1390 } 1391 1392 ResXMLParser::event_code_t ResXMLParser::nextNode() 1393 { 1394 if (mEventCode < 0) { 1395 return mEventCode; 1396 } 1397 1398 do { 1399 const ResXMLTree_node* next = (const ResXMLTree_node*) 1400 (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size)); 1401 //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next); 1402 1403 if (((const uint8_t*)next) >= mTree.mDataEnd) { 1404 mCurNode = NULL; 1405 return (mEventCode=END_DOCUMENT); 1406 } 1407 1408 if (mTree.validateNode(next) != NO_ERROR) { 1409 mCurNode = NULL; 1410 return (mEventCode=BAD_DOCUMENT); 1411 } 1412 1413 mCurNode = next; 1414 const uint16_t headerSize = dtohs(next->header.headerSize); 1415 const uint32_t totalSize = dtohl(next->header.size); 1416 mCurExt = ((const uint8_t*)next) + headerSize; 1417 size_t minExtSize = 0; 1418 event_code_t eventCode = (event_code_t)dtohs(next->header.type); 1419 switch ((mEventCode=eventCode)) { 1420 case RES_XML_START_NAMESPACE_TYPE: 1421 case RES_XML_END_NAMESPACE_TYPE: 1422 minExtSize = sizeof(ResXMLTree_namespaceExt); 1423 break; 1424 case RES_XML_START_ELEMENT_TYPE: 1425 minExtSize = sizeof(ResXMLTree_attrExt); 1426 break; 1427 case RES_XML_END_ELEMENT_TYPE: 1428 minExtSize = sizeof(ResXMLTree_endElementExt); 1429 break; 1430 case RES_XML_CDATA_TYPE: 1431 minExtSize = sizeof(ResXMLTree_cdataExt); 1432 break; 1433 default: 1434 ALOGW("Unknown XML block: header type %d in node at %d\n", 1435 (int)dtohs(next->header.type), 1436 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader))); 1437 continue; 1438 } 1439 1440 if ((totalSize-headerSize) < minExtSize) { 1441 ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n", 1442 (int)dtohs(next->header.type), 1443 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)), 1444 (int)(totalSize-headerSize), (int)minExtSize); 1445 return (mEventCode=BAD_DOCUMENT); 1446 } 1447 1448 //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n", 1449 // mCurNode, mCurExt, headerSize, minExtSize); 1450 1451 return eventCode; 1452 } while (true); 1453 } 1454 1455 void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const 1456 { 1457 pos->eventCode = mEventCode; 1458 pos->curNode = mCurNode; 1459 pos->curExt = mCurExt; 1460 } 1461 1462 void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos) 1463 { 1464 mEventCode = pos.eventCode; 1465 mCurNode = pos.curNode; 1466 mCurExt = pos.curExt; 1467 } 1468 1469 // -------------------------------------------------------------------- 1470 1471 static volatile int32_t gCount = 0; 1472 1473 ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable) 1474 : ResXMLParser(*this) 1475 , mDynamicRefTable(dynamicRefTable) 1476 , mError(NO_INIT), mOwnedData(NULL) 1477 { 1478 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1479 restart(); 1480 } 1481 1482 ResXMLTree::ResXMLTree() 1483 : ResXMLParser(*this) 1484 , mDynamicRefTable(NULL) 1485 , mError(NO_INIT), mOwnedData(NULL) 1486 { 1487 //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1); 1488 restart(); 1489 } 1490 1491 ResXMLTree::~ResXMLTree() 1492 { 1493 //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1); 1494 uninit(); 1495 } 1496 1497 status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData) 1498 { 1499 uninit(); 1500 mEventCode = START_DOCUMENT; 1501 1502 if (!data || !size) { 1503 return (mError=BAD_TYPE); 1504 } 1505 1506 if (copyData) { 1507 mOwnedData = malloc(size); 1508 if (mOwnedData == NULL) { 1509 return (mError=NO_MEMORY); 1510 } 1511 memcpy(mOwnedData, data, size); 1512 data = mOwnedData; 1513 } 1514 1515 mHeader = (const ResXMLTree_header*)data; 1516 mSize = dtohl(mHeader->header.size); 1517 if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) { 1518 ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n", 1519 (int)dtohs(mHeader->header.headerSize), 1520 (int)dtohl(mHeader->header.size), (int)size); 1521 mError = BAD_TYPE; 1522 restart(); 1523 return mError; 1524 } 1525 mDataEnd = ((const uint8_t*)mHeader) + mSize; 1526 1527 mStrings.uninit(); 1528 mRootNode = NULL; 1529 mResIds = NULL; 1530 mNumResIds = 0; 1531 1532 // First look for a couple interesting chunks: the string block 1533 // and first XML node. 1534 const ResChunk_header* chunk = 1535 (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize)); 1536 const ResChunk_header* lastChunk = chunk; 1537 while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) && 1538 ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) { 1539 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML"); 1540 if (err != NO_ERROR) { 1541 mError = err; 1542 goto done; 1543 } 1544 const uint16_t type = dtohs(chunk->type); 1545 const size_t size = dtohl(chunk->size); 1546 XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n", 1547 (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size)); 1548 if (type == RES_STRING_POOL_TYPE) { 1549 mStrings.setTo(chunk, size); 1550 } else if (type == RES_XML_RESOURCE_MAP_TYPE) { 1551 mResIds = (const uint32_t*) 1552 (((const uint8_t*)chunk)+dtohs(chunk->headerSize)); 1553 mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t); 1554 } else if (type >= RES_XML_FIRST_CHUNK_TYPE 1555 && type <= RES_XML_LAST_CHUNK_TYPE) { 1556 if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) { 1557 mError = BAD_TYPE; 1558 goto done; 1559 } 1560 mCurNode = (const ResXMLTree_node*)lastChunk; 1561 if (nextNode() == BAD_DOCUMENT) { 1562 mError = BAD_TYPE; 1563 goto done; 1564 } 1565 mRootNode = mCurNode; 1566 mRootExt = mCurExt; 1567 mRootCode = mEventCode; 1568 break; 1569 } else { 1570 XML_NOISY(printf("Skipping unknown chunk!\n")); 1571 } 1572 lastChunk = chunk; 1573 chunk = (const ResChunk_header*) 1574 (((const uint8_t*)chunk) + size); 1575 } 1576 1577 if (mRootNode == NULL) { 1578 ALOGW("Bad XML block: no root element node found\n"); 1579 mError = BAD_TYPE; 1580 goto done; 1581 } 1582 1583 mError = mStrings.getError(); 1584 1585 done: 1586 restart(); 1587 return mError; 1588 } 1589 1590 status_t ResXMLTree::getError() const 1591 { 1592 return mError; 1593 } 1594 1595 void ResXMLTree::uninit() 1596 { 1597 mError = NO_INIT; 1598 mStrings.uninit(); 1599 if (mOwnedData) { 1600 free(mOwnedData); 1601 mOwnedData = NULL; 1602 } 1603 restart(); 1604 } 1605 1606 status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const 1607 { 1608 const uint16_t eventCode = dtohs(node->header.type); 1609 1610 status_t err = validate_chunk( 1611 &node->header, sizeof(ResXMLTree_node), 1612 mDataEnd, "ResXMLTree_node"); 1613 1614 if (err >= NO_ERROR) { 1615 // Only perform additional validation on START nodes 1616 if (eventCode != RES_XML_START_ELEMENT_TYPE) { 1617 return NO_ERROR; 1618 } 1619 1620 const uint16_t headerSize = dtohs(node->header.headerSize); 1621 const uint32_t size = dtohl(node->header.size); 1622 const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*) 1623 (((const uint8_t*)node) + headerSize); 1624 // check for sensical values pulled out of the stream so far... 1625 if ((size >= headerSize + sizeof(ResXMLTree_attrExt)) 1626 && ((void*)attrExt > (void*)node)) { 1627 const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize)) 1628 * dtohs(attrExt->attributeCount); 1629 if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) { 1630 return NO_ERROR; 1631 } 1632 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1633 (unsigned int)(dtohs(attrExt->attributeStart)+attrSize), 1634 (unsigned int)(size-headerSize)); 1635 } 1636 else { 1637 ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n", 1638 (unsigned int)headerSize, (unsigned int)size); 1639 } 1640 return BAD_TYPE; 1641 } 1642 1643 return err; 1644 1645 #if 0 1646 const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE; 1647 1648 const uint16_t headerSize = dtohs(node->header.headerSize); 1649 const uint32_t size = dtohl(node->header.size); 1650 1651 if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) { 1652 if (size >= headerSize) { 1653 if (((const uint8_t*)node) <= (mDataEnd-size)) { 1654 if (!isStart) { 1655 return NO_ERROR; 1656 } 1657 if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount)) 1658 <= (size-headerSize)) { 1659 return NO_ERROR; 1660 } 1661 ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n", 1662 ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount), 1663 (int)(size-headerSize)); 1664 return BAD_TYPE; 1665 } 1666 ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n", 1667 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize); 1668 return BAD_TYPE; 1669 } 1670 ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n", 1671 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1672 (int)headerSize, (int)size); 1673 return BAD_TYPE; 1674 } 1675 ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n", 1676 (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), 1677 (int)headerSize); 1678 return BAD_TYPE; 1679 #endif 1680 } 1681 1682 // -------------------------------------------------------------------- 1683 // -------------------------------------------------------------------- 1684 // -------------------------------------------------------------------- 1685 1686 void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) { 1687 const size_t size = dtohl(o.size); 1688 if (size >= sizeof(ResTable_config)) { 1689 *this = o; 1690 } else { 1691 memcpy(this, &o, size); 1692 memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size); 1693 } 1694 } 1695 1696 /* static */ size_t unpackLanguageOrRegion(const char in[2], const char base, 1697 char out[4]) { 1698 if (in[0] & 0x80) { 1699 // The high bit is "1", which means this is a packed three letter 1700 // language code. 1701 1702 // The smallest 5 bits of the second char are the first alphabet. 1703 const uint8_t first = in[1] & 0x1f; 1704 // The last three bits of the second char and the first two bits 1705 // of the first char are the second alphabet. 1706 const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3); 1707 // Bits 3 to 7 (inclusive) of the first char are the third alphabet. 1708 const uint8_t third = (in[0] & 0x7c) >> 2; 1709 1710 out[0] = first + base; 1711 out[1] = second + base; 1712 out[2] = third + base; 1713 out[3] = 0; 1714 1715 return 3; 1716 } 1717 1718 if (in[0]) { 1719 memcpy(out, in, 2); 1720 memset(out + 2, 0, 2); 1721 return 2; 1722 } 1723 1724 memset(out, 0, 4); 1725 return 0; 1726 } 1727 1728 /* static */ void packLanguageOrRegion(const char* in, const char base, 1729 char out[2]) { 1730 if (in[2] == 0 || in[2] == '-') { 1731 out[0] = in[0]; 1732 out[1] = in[1]; 1733 } else { 1734 uint8_t first = (in[0] - base) & 0x007f; 1735 uint8_t second = (in[1] - base) & 0x007f; 1736 uint8_t third = (in[2] - base) & 0x007f; 1737 1738 out[0] = (0x80 | (third << 2) | (second >> 3)); 1739 out[1] = ((second << 5) | first); 1740 } 1741 } 1742 1743 1744 void ResTable_config::packLanguage(const char* language) { 1745 packLanguageOrRegion(language, 'a', this->language); 1746 } 1747 1748 void ResTable_config::packRegion(const char* region) { 1749 packLanguageOrRegion(region, '0', this->country); 1750 } 1751 1752 size_t ResTable_config::unpackLanguage(char language[4]) const { 1753 return unpackLanguageOrRegion(this->language, 'a', language); 1754 } 1755 1756 size_t ResTable_config::unpackRegion(char region[4]) const { 1757 return unpackLanguageOrRegion(this->country, '0', region); 1758 } 1759 1760 1761 void ResTable_config::copyFromDtoH(const ResTable_config& o) { 1762 copyFromDeviceNoSwap(o); 1763 size = sizeof(ResTable_config); 1764 mcc = dtohs(mcc); 1765 mnc = dtohs(mnc); 1766 density = dtohs(density); 1767 screenWidth = dtohs(screenWidth); 1768 screenHeight = dtohs(screenHeight); 1769 sdkVersion = dtohs(sdkVersion); 1770 minorVersion = dtohs(minorVersion); 1771 smallestScreenWidthDp = dtohs(smallestScreenWidthDp); 1772 screenWidthDp = dtohs(screenWidthDp); 1773 screenHeightDp = dtohs(screenHeightDp); 1774 } 1775 1776 void ResTable_config::swapHtoD() { 1777 size = htodl(size); 1778 mcc = htods(mcc); 1779 mnc = htods(mnc); 1780 density = htods(density); 1781 screenWidth = htods(screenWidth); 1782 screenHeight = htods(screenHeight); 1783 sdkVersion = htods(sdkVersion); 1784 minorVersion = htods(minorVersion); 1785 smallestScreenWidthDp = htods(smallestScreenWidthDp); 1786 screenWidthDp = htods(screenWidthDp); 1787 screenHeightDp = htods(screenHeightDp); 1788 } 1789 1790 /* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) { 1791 if (l.locale != r.locale) { 1792 // NOTE: This is the old behaviour with respect to comparison orders. 1793 // The diff value here doesn't make much sense (given our bit packing scheme) 1794 // but it's stable, and that's all we need. 1795 return l.locale - r.locale; 1796 } 1797 1798 // The language & region are equal, so compare the scripts and variants. 1799 int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript)); 1800 if (script) { 1801 return script; 1802 } 1803 1804 // The language, region and script are equal, so compare variants. 1805 // 1806 // This should happen very infrequently (if at all.) 1807 return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant)); 1808 } 1809 1810 int ResTable_config::compare(const ResTable_config& o) const { 1811 int32_t diff = (int32_t)(imsi - o.imsi); 1812 if (diff != 0) return diff; 1813 diff = compareLocales(*this, o); 1814 if (diff != 0) return diff; 1815 diff = (int32_t)(screenType - o.screenType); 1816 if (diff != 0) return diff; 1817 diff = (int32_t)(input - o.input); 1818 if (diff != 0) return diff; 1819 diff = (int32_t)(screenSize - o.screenSize); 1820 if (diff != 0) return diff; 1821 diff = (int32_t)(version - o.version); 1822 if (diff != 0) return diff; 1823 diff = (int32_t)(screenLayout - o.screenLayout); 1824 if (diff != 0) return diff; 1825 diff = (int32_t)(uiMode - o.uiMode); 1826 if (diff != 0) return diff; 1827 diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp); 1828 if (diff != 0) return diff; 1829 diff = (int32_t)(screenSizeDp - o.screenSizeDp); 1830 return (int)diff; 1831 } 1832 1833 int ResTable_config::compareLogical(const ResTable_config& o) const { 1834 if (mcc != o.mcc) { 1835 return mcc < o.mcc ? -1 : 1; 1836 } 1837 if (mnc != o.mnc) { 1838 return mnc < o.mnc ? -1 : 1; 1839 } 1840 1841 int diff = compareLocales(*this, o); 1842 if (diff < 0) { 1843 return -1; 1844 } 1845 if (diff > 0) { 1846 return 1; 1847 } 1848 1849 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) { 1850 return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1; 1851 } 1852 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1853 return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1; 1854 } 1855 if (screenWidthDp != o.screenWidthDp) { 1856 return screenWidthDp < o.screenWidthDp ? -1 : 1; 1857 } 1858 if (screenHeightDp != o.screenHeightDp) { 1859 return screenHeightDp < o.screenHeightDp ? -1 : 1; 1860 } 1861 if (screenWidth != o.screenWidth) { 1862 return screenWidth < o.screenWidth ? -1 : 1; 1863 } 1864 if (screenHeight != o.screenHeight) { 1865 return screenHeight < o.screenHeight ? -1 : 1; 1866 } 1867 if (density != o.density) { 1868 return density < o.density ? -1 : 1; 1869 } 1870 if (orientation != o.orientation) { 1871 return orientation < o.orientation ? -1 : 1; 1872 } 1873 if (touchscreen != o.touchscreen) { 1874 return touchscreen < o.touchscreen ? -1 : 1; 1875 } 1876 if (input != o.input) { 1877 return input < o.input ? -1 : 1; 1878 } 1879 if (screenLayout != o.screenLayout) { 1880 return screenLayout < o.screenLayout ? -1 : 1; 1881 } 1882 if (uiMode != o.uiMode) { 1883 return uiMode < o.uiMode ? -1 : 1; 1884 } 1885 if (version != o.version) { 1886 return version < o.version ? -1 : 1; 1887 } 1888 return 0; 1889 } 1890 1891 int ResTable_config::diff(const ResTable_config& o) const { 1892 int diffs = 0; 1893 if (mcc != o.mcc) diffs |= CONFIG_MCC; 1894 if (mnc != o.mnc) diffs |= CONFIG_MNC; 1895 if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION; 1896 if (density != o.density) diffs |= CONFIG_DENSITY; 1897 if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN; 1898 if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0) 1899 diffs |= CONFIG_KEYBOARD_HIDDEN; 1900 if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD; 1901 if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION; 1902 if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE; 1903 if (version != o.version) diffs |= CONFIG_VERSION; 1904 if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR; 1905 if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT; 1906 if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE; 1907 if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE; 1908 if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE; 1909 1910 const int diff = compareLocales(*this, o); 1911 if (diff) diffs |= CONFIG_LOCALE; 1912 1913 return diffs; 1914 } 1915 1916 int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const { 1917 if (locale || o.locale) { 1918 if (language[0] != o.language[0]) { 1919 if (!language[0]) return -1; 1920 if (!o.language[0]) return 1; 1921 } 1922 1923 if (country[0] != o.country[0]) { 1924 if (!country[0]) return -1; 1925 if (!o.country[0]) return 1; 1926 } 1927 } 1928 1929 // There isn't a well specified "importance" order between variants and 1930 // scripts. We can't easily tell whether, say "en-Latn-US" is more or less 1931 // specific than "en-US-POSIX". 1932 // 1933 // We therefore arbitrarily decide to give priority to variants over 1934 // scripts since it seems more useful to do so. We will consider 1935 // "en-US-POSIX" to be more specific than "en-Latn-US". 1936 1937 const int score = ((localeScript[0] != 0) ? 1 : 0) + 1938 ((localeVariant[0] != 0) ? 2 : 0); 1939 1940 const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) + 1941 ((o.localeVariant[0] != 0) ? 2 : 0); 1942 1943 return score - oScore; 1944 1945 } 1946 1947 bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const { 1948 // The order of the following tests defines the importance of one 1949 // configuration parameter over another. Those tests first are more 1950 // important, trumping any values in those following them. 1951 if (imsi || o.imsi) { 1952 if (mcc != o.mcc) { 1953 if (!mcc) return false; 1954 if (!o.mcc) return true; 1955 } 1956 1957 if (mnc != o.mnc) { 1958 if (!mnc) return false; 1959 if (!o.mnc) return true; 1960 } 1961 } 1962 1963 if (locale || o.locale) { 1964 const int diff = isLocaleMoreSpecificThan(o); 1965 if (diff < 0) { 1966 return false; 1967 } 1968 1969 if (diff > 0) { 1970 return true; 1971 } 1972 } 1973 1974 if (screenLayout || o.screenLayout) { 1975 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) { 1976 if (!(screenLayout & MASK_LAYOUTDIR)) return false; 1977 if (!(o.screenLayout & MASK_LAYOUTDIR)) return true; 1978 } 1979 } 1980 1981 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 1982 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 1983 if (!smallestScreenWidthDp) return false; 1984 if (!o.smallestScreenWidthDp) return true; 1985 } 1986 } 1987 1988 if (screenSizeDp || o.screenSizeDp) { 1989 if (screenWidthDp != o.screenWidthDp) { 1990 if (!screenWidthDp) return false; 1991 if (!o.screenWidthDp) return true; 1992 } 1993 1994 if (screenHeightDp != o.screenHeightDp) { 1995 if (!screenHeightDp) return false; 1996 if (!o.screenHeightDp) return true; 1997 } 1998 } 1999 2000 if (screenLayout || o.screenLayout) { 2001 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) { 2002 if (!(screenLayout & MASK_SCREENSIZE)) return false; 2003 if (!(o.screenLayout & MASK_SCREENSIZE)) return true; 2004 } 2005 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) { 2006 if (!(screenLayout & MASK_SCREENLONG)) return false; 2007 if (!(o.screenLayout & MASK_SCREENLONG)) return true; 2008 } 2009 } 2010 2011 if (orientation != o.orientation) { 2012 if (!orientation) return false; 2013 if (!o.orientation) return true; 2014 } 2015 2016 if (uiMode || o.uiMode) { 2017 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) { 2018 if (!(uiMode & MASK_UI_MODE_TYPE)) return false; 2019 if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true; 2020 } 2021 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) { 2022 if (!(uiMode & MASK_UI_MODE_NIGHT)) return false; 2023 if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true; 2024 } 2025 } 2026 2027 // density is never 'more specific' 2028 // as the default just equals 160 2029 2030 if (touchscreen != o.touchscreen) { 2031 if (!touchscreen) return false; 2032 if (!o.touchscreen) return true; 2033 } 2034 2035 if (input || o.input) { 2036 if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) { 2037 if (!(inputFlags & MASK_KEYSHIDDEN)) return false; 2038 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true; 2039 } 2040 2041 if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) { 2042 if (!(inputFlags & MASK_NAVHIDDEN)) return false; 2043 if (!(o.inputFlags & MASK_NAVHIDDEN)) return true; 2044 } 2045 2046 if (keyboard != o.keyboard) { 2047 if (!keyboard) return false; 2048 if (!o.keyboard) return true; 2049 } 2050 2051 if (navigation != o.navigation) { 2052 if (!navigation) return false; 2053 if (!o.navigation) return true; 2054 } 2055 } 2056 2057 if (screenSize || o.screenSize) { 2058 if (screenWidth != o.screenWidth) { 2059 if (!screenWidth) return false; 2060 if (!o.screenWidth) return true; 2061 } 2062 2063 if (screenHeight != o.screenHeight) { 2064 if (!screenHeight) return false; 2065 if (!o.screenHeight) return true; 2066 } 2067 } 2068 2069 if (version || o.version) { 2070 if (sdkVersion != o.sdkVersion) { 2071 if (!sdkVersion) return false; 2072 if (!o.sdkVersion) return true; 2073 } 2074 2075 if (minorVersion != o.minorVersion) { 2076 if (!minorVersion) return false; 2077 if (!o.minorVersion) return true; 2078 } 2079 } 2080 return false; 2081 } 2082 2083 bool ResTable_config::isBetterThan(const ResTable_config& o, 2084 const ResTable_config* requested) const { 2085 if (requested) { 2086 if (imsi || o.imsi) { 2087 if ((mcc != o.mcc) && requested->mcc) { 2088 return (mcc); 2089 } 2090 2091 if ((mnc != o.mnc) && requested->mnc) { 2092 return (mnc); 2093 } 2094 } 2095 2096 if (locale || o.locale) { 2097 if ((language[0] != o.language[0]) && requested->language[0]) { 2098 return (language[0]); 2099 } 2100 2101 if ((country[0] != o.country[0]) && requested->country[0]) { 2102 return (country[0]); 2103 } 2104 } 2105 2106 if (localeScript[0] || o.localeScript[0]) { 2107 if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) { 2108 return localeScript[0]; 2109 } 2110 } 2111 2112 if (localeVariant[0] || o.localeVariant[0]) { 2113 if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) { 2114 return localeVariant[0]; 2115 } 2116 } 2117 2118 if (screenLayout || o.screenLayout) { 2119 if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0 2120 && (requested->screenLayout & MASK_LAYOUTDIR)) { 2121 int myLayoutDir = screenLayout & MASK_LAYOUTDIR; 2122 int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR; 2123 return (myLayoutDir > oLayoutDir); 2124 } 2125 } 2126 2127 if (smallestScreenWidthDp || o.smallestScreenWidthDp) { 2128 // The configuration closest to the actual size is best. 2129 // We assume that larger configs have already been filtered 2130 // out at this point. That means we just want the largest one. 2131 if (smallestScreenWidthDp != o.smallestScreenWidthDp) { 2132 return smallestScreenWidthDp > o.smallestScreenWidthDp; 2133 } 2134 } 2135 2136 if (screenSizeDp || o.screenSizeDp) { 2137 // "Better" is based on the sum of the difference between both 2138 // width and height from the requested dimensions. We are 2139 // assuming the invalid configs (with smaller dimens) have 2140 // already been filtered. Note that if a particular dimension 2141 // is unspecified, we will end up with a large value (the 2142 // difference between 0 and the requested dimension), which is 2143 // good since we will prefer a config that has specified a 2144 // dimension value. 2145 int myDelta = 0, otherDelta = 0; 2146 if (requested->screenWidthDp) { 2147 myDelta += requested->screenWidthDp - screenWidthDp; 2148 otherDelta += requested->screenWidthDp - o.screenWidthDp; 2149 } 2150 if (requested->screenHeightDp) { 2151 myDelta += requested->screenHeightDp - screenHeightDp; 2152 otherDelta += requested->screenHeightDp - o.screenHeightDp; 2153 } 2154 //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d", 2155 // screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp, 2156 // requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta); 2157 if (myDelta != otherDelta) { 2158 return myDelta < otherDelta; 2159 } 2160 } 2161 2162 if (screenLayout || o.screenLayout) { 2163 if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0 2164 && (requested->screenLayout & MASK_SCREENSIZE)) { 2165 // A little backwards compatibility here: undefined is 2166 // considered equivalent to normal. But only if the 2167 // requested size is at least normal; otherwise, small 2168 // is better than the default. 2169 int mySL = (screenLayout & MASK_SCREENSIZE); 2170 int oSL = (o.screenLayout & MASK_SCREENSIZE); 2171 int fixedMySL = mySL; 2172 int fixedOSL = oSL; 2173 if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) { 2174 if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL; 2175 if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL; 2176 } 2177 // For screen size, the best match is the one that is 2178 // closest to the requested screen size, but not over 2179 // (the not over part is dealt with in match() below). 2180 if (fixedMySL == fixedOSL) { 2181 // If the two are the same, but 'this' is actually 2182 // undefined, then the other is really a better match. 2183 if (mySL == 0) return false; 2184 return true; 2185 } 2186 if (fixedMySL != fixedOSL) { 2187 return fixedMySL > fixedOSL; 2188 } 2189 } 2190 if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0 2191 && (requested->screenLayout & MASK_SCREENLONG)) { 2192 return (screenLayout & MASK_SCREENLONG); 2193 } 2194 } 2195 2196 if ((orientation != o.orientation) && requested->orientation) { 2197 return (orientation); 2198 } 2199 2200 if (uiMode || o.uiMode) { 2201 if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0 2202 && (requested->uiMode & MASK_UI_MODE_TYPE)) { 2203 return (uiMode & MASK_UI_MODE_TYPE); 2204 } 2205 if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0 2206 && (requested->uiMode & MASK_UI_MODE_NIGHT)) { 2207 return (uiMode & MASK_UI_MODE_NIGHT); 2208 } 2209 } 2210 2211 if (screenType || o.screenType) { 2212 if (density != o.density) { 2213 // Use the system default density (DENSITY_MEDIUM, 160dpi) if none specified. 2214 const int thisDensity = density ? density : int(ResTable_config::DENSITY_MEDIUM); 2215 const int otherDensity = o.density ? o.density : int(ResTable_config::DENSITY_MEDIUM); 2216 2217 // We always prefer DENSITY_ANY over scaling a density bucket. 2218 if (thisDensity == ResTable_config::DENSITY_ANY) { 2219 return true; 2220 } else if (otherDensity == ResTable_config::DENSITY_ANY) { 2221 return false; 2222 } 2223 2224 int requestedDensity = requested->density; 2225 if (requested->density == 0 || 2226 requested->density == ResTable_config::DENSITY_ANY) { 2227 requestedDensity = ResTable_config::DENSITY_MEDIUM; 2228 } 2229 2230 // DENSITY_ANY is now dealt with. We should look to 2231 // pick a density bucket and potentially scale it. 2232 // Any density is potentially useful 2233 // because the system will scale it. Scaling down 2234 // is generally better than scaling up. 2235 int h = thisDensity; 2236 int l = otherDensity; 2237 bool bImBigger = true; 2238 if (l > h) { 2239 int t = h; 2240 h = l; 2241 l = t; 2242 bImBigger = false; 2243 } 2244 2245 if (requestedDensity >= h) { 2246 // requested value higher than both l and h, give h 2247 return bImBigger; 2248 } 2249 if (l >= requestedDensity) { 2250 // requested value lower than both l and h, give l 2251 return !bImBigger; 2252 } 2253 // saying that scaling down is 2x better than up 2254 if (((2 * l) - requestedDensity) * h > requestedDensity * requestedDensity) { 2255 return !bImBigger; 2256 } else { 2257 return bImBigger; 2258 } 2259 } 2260 2261 if ((touchscreen != o.touchscreen) && requested->touchscreen) { 2262 return (touchscreen); 2263 } 2264 } 2265 2266 if (input || o.input) { 2267 const int keysHidden = inputFlags & MASK_KEYSHIDDEN; 2268 const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN; 2269 if (keysHidden != oKeysHidden) { 2270 const int reqKeysHidden = 2271 requested->inputFlags & MASK_KEYSHIDDEN; 2272 if (reqKeysHidden) { 2273 2274 if (!keysHidden) return false; 2275 if (!oKeysHidden) return true; 2276 // For compatibility, we count KEYSHIDDEN_NO as being 2277 // the same as KEYSHIDDEN_SOFT. Here we disambiguate 2278 // these by making an exact match more specific. 2279 if (reqKeysHidden == keysHidden) return true; 2280 if (reqKeysHidden == oKeysHidden) return false; 2281 } 2282 } 2283 2284 const int navHidden = inputFlags & MASK_NAVHIDDEN; 2285 const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN; 2286 if (navHidden != oNavHidden) { 2287 const int reqNavHidden = 2288 requested->inputFlags & MASK_NAVHIDDEN; 2289 if (reqNavHidden) { 2290 2291 if (!navHidden) return false; 2292 if (!oNavHidden) return true; 2293 } 2294 } 2295 2296 if ((keyboard != o.keyboard) && requested->keyboard) { 2297 return (keyboard); 2298 } 2299 2300 if ((navigation != o.navigation) && requested->navigation) { 2301 return (navigation); 2302 } 2303 } 2304 2305 if (screenSize || o.screenSize) { 2306 // "Better" is based on the sum of the difference between both 2307 // width and height from the requested dimensions. We are 2308 // assuming the invalid configs (with smaller sizes) have 2309 // already been filtered. Note that if a particular dimension 2310 // is unspecified, we will end up with a large value (the 2311 // difference between 0 and the requested dimension), which is 2312 // good since we will prefer a config that has specified a 2313 // size value. 2314 int myDelta = 0, otherDelta = 0; 2315 if (requested->screenWidth) { 2316 myDelta += requested->screenWidth - screenWidth; 2317 otherDelta += requested->screenWidth - o.screenWidth; 2318 } 2319 if (requested->screenHeight) { 2320 myDelta += requested->screenHeight - screenHeight; 2321 otherDelta += requested->screenHeight - o.screenHeight; 2322 } 2323 if (myDelta != otherDelta) { 2324 return myDelta < otherDelta; 2325 } 2326 } 2327 2328 if (version || o.version) { 2329 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) { 2330 return (sdkVersion > o.sdkVersion); 2331 } 2332 2333 if ((minorVersion != o.minorVersion) && 2334 requested->minorVersion) { 2335 return (minorVersion); 2336 } 2337 } 2338 2339 return false; 2340 } 2341 return isMoreSpecificThan(o); 2342 } 2343 2344 bool ResTable_config::match(const ResTable_config& settings) const { 2345 if (imsi != 0) { 2346 if (mcc != 0 && mcc != settings.mcc) { 2347 return false; 2348 } 2349 if (mnc != 0 && mnc != settings.mnc) { 2350 return false; 2351 } 2352 } 2353 if (locale != 0) { 2354 // Don't consider the script & variants when deciding matches. 2355 // 2356 // If we two configs differ only in their script or language, they 2357 // can be weeded out in the isMoreSpecificThan test. 2358 if (language[0] != 0 2359 && (language[0] != settings.language[0] 2360 || language[1] != settings.language[1])) { 2361 return false; 2362 } 2363 2364 if (country[0] != 0 2365 && (country[0] != settings.country[0] 2366 || country[1] != settings.country[1])) { 2367 return false; 2368 } 2369 } 2370 2371 if (screenConfig != 0) { 2372 const int layoutDir = screenLayout&MASK_LAYOUTDIR; 2373 const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR; 2374 if (layoutDir != 0 && layoutDir != setLayoutDir) { 2375 return false; 2376 } 2377 2378 const int screenSize = screenLayout&MASK_SCREENSIZE; 2379 const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE; 2380 // Any screen sizes for larger screens than the setting do not 2381 // match. 2382 if (screenSize != 0 && screenSize > setScreenSize) { 2383 return false; 2384 } 2385 2386 const int screenLong = screenLayout&MASK_SCREENLONG; 2387 const int setScreenLong = settings.screenLayout&MASK_SCREENLONG; 2388 if (screenLong != 0 && screenLong != setScreenLong) { 2389 return false; 2390 } 2391 2392 const int uiModeType = uiMode&MASK_UI_MODE_TYPE; 2393 const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE; 2394 if (uiModeType != 0 && uiModeType != setUiModeType) { 2395 return false; 2396 } 2397 2398 const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT; 2399 const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT; 2400 if (uiModeNight != 0 && uiModeNight != setUiModeNight) { 2401 return false; 2402 } 2403 2404 if (smallestScreenWidthDp != 0 2405 && smallestScreenWidthDp > settings.smallestScreenWidthDp) { 2406 return false; 2407 } 2408 } 2409 if (screenSizeDp != 0) { 2410 if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) { 2411 //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp); 2412 return false; 2413 } 2414 if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) { 2415 //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp); 2416 return false; 2417 } 2418 } 2419 if (screenType != 0) { 2420 if (orientation != 0 && orientation != settings.orientation) { 2421 return false; 2422 } 2423 // density always matches - we can scale it. See isBetterThan 2424 if (touchscreen != 0 && touchscreen != settings.touchscreen) { 2425 return false; 2426 } 2427 } 2428 if (input != 0) { 2429 const int keysHidden = inputFlags&MASK_KEYSHIDDEN; 2430 const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN; 2431 if (keysHidden != 0 && keysHidden != setKeysHidden) { 2432 // For compatibility, we count a request for KEYSHIDDEN_NO as also 2433 // matching the more recent KEYSHIDDEN_SOFT. Basically 2434 // KEYSHIDDEN_NO means there is some kind of keyboard available. 2435 //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden); 2436 if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) { 2437 //ALOGI("No match!"); 2438 return false; 2439 } 2440 } 2441 const int navHidden = inputFlags&MASK_NAVHIDDEN; 2442 const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN; 2443 if (navHidden != 0 && navHidden != setNavHidden) { 2444 return false; 2445 } 2446 if (keyboard != 0 && keyboard != settings.keyboard) { 2447 return false; 2448 } 2449 if (navigation != 0 && navigation != settings.navigation) { 2450 return false; 2451 } 2452 } 2453 if (screenSize != 0) { 2454 if (screenWidth != 0 && screenWidth > settings.screenWidth) { 2455 return false; 2456 } 2457 if (screenHeight != 0 && screenHeight > settings.screenHeight) { 2458 return false; 2459 } 2460 } 2461 if (version != 0) { 2462 if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) { 2463 return false; 2464 } 2465 if (minorVersion != 0 && minorVersion != settings.minorVersion) { 2466 return false; 2467 } 2468 } 2469 return true; 2470 } 2471 2472 void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const { 2473 memset(str, 0, RESTABLE_MAX_LOCALE_LEN); 2474 2475 // This represents the "any" locale value, which has traditionally been 2476 // represented by the empty string. 2477 if (!language[0] && !country[0]) { 2478 return; 2479 } 2480 2481 size_t charsWritten = 0; 2482 if (language[0]) { 2483 charsWritten += unpackLanguage(str); 2484 } 2485 2486 if (localeScript[0]) { 2487 if (charsWritten) { 2488 str[charsWritten++] = '-'; 2489 } 2490 memcpy(str + charsWritten, localeScript, sizeof(localeScript)); 2491 charsWritten += sizeof(localeScript); 2492 } 2493 2494 if (country[0]) { 2495 if (charsWritten) { 2496 str[charsWritten++] = '-'; 2497 } 2498 charsWritten += unpackRegion(str + charsWritten); 2499 } 2500 2501 if (localeVariant[0]) { 2502 if (charsWritten) { 2503 str[charsWritten++] = '-'; 2504 } 2505 memcpy(str + charsWritten, localeVariant, sizeof(localeVariant)); 2506 } 2507 } 2508 2509 /* static */ inline bool assignLocaleComponent(ResTable_config* config, 2510 const char* start, size_t size) { 2511 2512 switch (size) { 2513 case 0: 2514 return false; 2515 case 2: 2516 case 3: 2517 config->language[0] ? config->packRegion(start) : config->packLanguage(start); 2518 break; 2519 case 4: 2520 config->localeScript[0] = toupper(start[0]); 2521 for (size_t i = 1; i < 4; ++i) { 2522 config->localeScript[i] = tolower(start[i]); 2523 } 2524 break; 2525 case 5: 2526 case 6: 2527 case 7: 2528 case 8: 2529 for (size_t i = 0; i < size; ++i) { 2530 config->localeVariant[i] = tolower(start[i]); 2531 } 2532 break; 2533 default: 2534 return false; 2535 } 2536 2537 return true; 2538 } 2539 2540 void ResTable_config::setBcp47Locale(const char* in) { 2541 locale = 0; 2542 memset(localeScript, 0, sizeof(localeScript)); 2543 memset(localeVariant, 0, sizeof(localeVariant)); 2544 2545 const char* separator = in; 2546 const char* start = in; 2547 while ((separator = strchr(start, '-')) != NULL) { 2548 const size_t size = separator - start; 2549 if (!assignLocaleComponent(this, start, size)) { 2550 fprintf(stderr, "Invalid BCP-47 locale string: %s", in); 2551 } 2552 2553 start = (separator + 1); 2554 } 2555 2556 const size_t size = in + strlen(in) - start; 2557 assignLocaleComponent(this, start, size); 2558 } 2559 2560 String8 ResTable_config::toString() const { 2561 String8 res; 2562 2563 if (mcc != 0) { 2564 if (res.size() > 0) res.append("-"); 2565 res.appendFormat("mcc%d", dtohs(mcc)); 2566 } 2567 if (mnc != 0) { 2568 if (res.size() > 0) res.append("-"); 2569 res.appendFormat("mnc%d", dtohs(mnc)); 2570 } 2571 2572 char localeStr[RESTABLE_MAX_LOCALE_LEN]; 2573 getBcp47Locale(localeStr); 2574 if (strlen(localeStr) > 0) { 2575 if (res.size() > 0) res.append("-"); 2576 res.append(localeStr); 2577 } 2578 2579 if ((screenLayout&MASK_LAYOUTDIR) != 0) { 2580 if (res.size() > 0) res.append("-"); 2581 switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) { 2582 case ResTable_config::LAYOUTDIR_LTR: 2583 res.append("ldltr"); 2584 break; 2585 case ResTable_config::LAYOUTDIR_RTL: 2586 res.append("ldrtl"); 2587 break; 2588 default: 2589 res.appendFormat("layoutDir=%d", 2590 dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR)); 2591 break; 2592 } 2593 } 2594 if (smallestScreenWidthDp != 0) { 2595 if (res.size() > 0) res.append("-"); 2596 res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp)); 2597 } 2598 if (screenWidthDp != 0) { 2599 if (res.size() > 0) res.append("-"); 2600 res.appendFormat("w%ddp", dtohs(screenWidthDp)); 2601 } 2602 if (screenHeightDp != 0) { 2603 if (res.size() > 0) res.append("-"); 2604 res.appendFormat("h%ddp", dtohs(screenHeightDp)); 2605 } 2606 if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) { 2607 if (res.size() > 0) res.append("-"); 2608 switch (screenLayout&ResTable_config::MASK_SCREENSIZE) { 2609 case ResTable_config::SCREENSIZE_SMALL: 2610 res.append("small"); 2611 break; 2612 case ResTable_config::SCREENSIZE_NORMAL: 2613 res.append("normal"); 2614 break; 2615 case ResTable_config::SCREENSIZE_LARGE: 2616 res.append("large"); 2617 break; 2618 case ResTable_config::SCREENSIZE_XLARGE: 2619 res.append("xlarge"); 2620 break; 2621 default: 2622 res.appendFormat("screenLayoutSize=%d", 2623 dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE)); 2624 break; 2625 } 2626 } 2627 if ((screenLayout&MASK_SCREENLONG) != 0) { 2628 if (res.size() > 0) res.append("-"); 2629 switch (screenLayout&ResTable_config::MASK_SCREENLONG) { 2630 case ResTable_config::SCREENLONG_NO: 2631 res.append("notlong"); 2632 break; 2633 case ResTable_config::SCREENLONG_YES: 2634 res.append("long"); 2635 break; 2636 default: 2637 res.appendFormat("screenLayoutLong=%d", 2638 dtohs(screenLayout&ResTable_config::MASK_SCREENLONG)); 2639 break; 2640 } 2641 } 2642 if (orientation != ORIENTATION_ANY) { 2643 if (res.size() > 0) res.append("-"); 2644 switch (orientation) { 2645 case ResTable_config::ORIENTATION_PORT: 2646 res.append("port"); 2647 break; 2648 case ResTable_config::ORIENTATION_LAND: 2649 res.append("land"); 2650 break; 2651 case ResTable_config::ORIENTATION_SQUARE: 2652 res.append("square"); 2653 break; 2654 default: 2655 res.appendFormat("orientation=%d", dtohs(orientation)); 2656 break; 2657 } 2658 } 2659 if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) { 2660 if (res.size() > 0) res.append("-"); 2661 switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) { 2662 case ResTable_config::UI_MODE_TYPE_DESK: 2663 res.append("desk"); 2664 break; 2665 case ResTable_config::UI_MODE_TYPE_CAR: 2666 res.append("car"); 2667 break; 2668 case ResTable_config::UI_MODE_TYPE_TELEVISION: 2669 res.append("television"); 2670 break; 2671 case ResTable_config::UI_MODE_TYPE_APPLIANCE: 2672 res.append("appliance"); 2673 break; 2674 case ResTable_config::UI_MODE_TYPE_WATCH: 2675 res.append("watch"); 2676 break; 2677 default: 2678 res.appendFormat("uiModeType=%d", 2679 dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE)); 2680 break; 2681 } 2682 } 2683 if ((uiMode&MASK_UI_MODE_NIGHT) != 0) { 2684 if (res.size() > 0) res.append("-"); 2685 switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) { 2686 case ResTable_config::UI_MODE_NIGHT_NO: 2687 res.append("notnight"); 2688 break; 2689 case ResTable_config::UI_MODE_NIGHT_YES: 2690 res.append("night"); 2691 break; 2692 default: 2693 res.appendFormat("uiModeNight=%d", 2694 dtohs(uiMode&MASK_UI_MODE_NIGHT)); 2695 break; 2696 } 2697 } 2698 if (density != DENSITY_DEFAULT) { 2699 if (res.size() > 0) res.append("-"); 2700 switch (density) { 2701 case ResTable_config::DENSITY_LOW: 2702 res.append("ldpi"); 2703 break; 2704 case ResTable_config::DENSITY_MEDIUM: 2705 res.append("mdpi"); 2706 break; 2707 case ResTable_config::DENSITY_TV: 2708 res.append("tvdpi"); 2709 break; 2710 case ResTable_config::DENSITY_HIGH: 2711 res.append("hdpi"); 2712 break; 2713 case ResTable_config::DENSITY_XHIGH: 2714 res.append("xhdpi"); 2715 break; 2716 case ResTable_config::DENSITY_XXHIGH: 2717 res.append("xxhdpi"); 2718 break; 2719 case ResTable_config::DENSITY_XXXHIGH: 2720 res.append("xxxhdpi"); 2721 break; 2722 case ResTable_config::DENSITY_NONE: 2723 res.append("nodpi"); 2724 break; 2725 case ResTable_config::DENSITY_ANY: 2726 res.append("anydpi"); 2727 break; 2728 default: 2729 res.appendFormat("%ddpi", dtohs(density)); 2730 break; 2731 } 2732 } 2733 if (touchscreen != TOUCHSCREEN_ANY) { 2734 if (res.size() > 0) res.append("-"); 2735 switch (touchscreen) { 2736 case ResTable_config::TOUCHSCREEN_NOTOUCH: 2737 res.append("notouch"); 2738 break; 2739 case ResTable_config::TOUCHSCREEN_FINGER: 2740 res.append("finger"); 2741 break; 2742 case ResTable_config::TOUCHSCREEN_STYLUS: 2743 res.append("stylus"); 2744 break; 2745 default: 2746 res.appendFormat("touchscreen=%d", dtohs(touchscreen)); 2747 break; 2748 } 2749 } 2750 if ((inputFlags&MASK_KEYSHIDDEN) != 0) { 2751 if (res.size() > 0) res.append("-"); 2752 switch (inputFlags&MASK_KEYSHIDDEN) { 2753 case ResTable_config::KEYSHIDDEN_NO: 2754 res.append("keysexposed"); 2755 break; 2756 case ResTable_config::KEYSHIDDEN_YES: 2757 res.append("keyshidden"); 2758 break; 2759 case ResTable_config::KEYSHIDDEN_SOFT: 2760 res.append("keyssoft"); 2761 break; 2762 } 2763 } 2764 if (keyboard != KEYBOARD_ANY) { 2765 if (res.size() > 0) res.append("-"); 2766 switch (keyboard) { 2767 case ResTable_config::KEYBOARD_NOKEYS: 2768 res.append("nokeys"); 2769 break; 2770 case ResTable_config::KEYBOARD_QWERTY: 2771 res.append("qwerty"); 2772 break; 2773 case ResTable_config::KEYBOARD_12KEY: 2774 res.append("12key"); 2775 break; 2776 default: 2777 res.appendFormat("keyboard=%d", dtohs(keyboard)); 2778 break; 2779 } 2780 } 2781 if ((inputFlags&MASK_NAVHIDDEN) != 0) { 2782 if (res.size() > 0) res.append("-"); 2783 switch (inputFlags&MASK_NAVHIDDEN) { 2784 case ResTable_config::NAVHIDDEN_NO: 2785 res.append("navexposed"); 2786 break; 2787 case ResTable_config::NAVHIDDEN_YES: 2788 res.append("navhidden"); 2789 break; 2790 default: 2791 res.appendFormat("inputFlagsNavHidden=%d", 2792 dtohs(inputFlags&MASK_NAVHIDDEN)); 2793 break; 2794 } 2795 } 2796 if (navigation != NAVIGATION_ANY) { 2797 if (res.size() > 0) res.append("-"); 2798 switch (navigation) { 2799 case ResTable_config::NAVIGATION_NONAV: 2800 res.append("nonav"); 2801 break; 2802 case ResTable_config::NAVIGATION_DPAD: 2803 res.append("dpad"); 2804 break; 2805 case ResTable_config::NAVIGATION_TRACKBALL: 2806 res.append("trackball"); 2807 break; 2808 case ResTable_config::NAVIGATION_WHEEL: 2809 res.append("wheel"); 2810 break; 2811 default: 2812 res.appendFormat("navigation=%d", dtohs(navigation)); 2813 break; 2814 } 2815 } 2816 if (screenSize != 0) { 2817 if (res.size() > 0) res.append("-"); 2818 res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight)); 2819 } 2820 if (version != 0) { 2821 if (res.size() > 0) res.append("-"); 2822 res.appendFormat("v%d", dtohs(sdkVersion)); 2823 if (minorVersion != 0) { 2824 res.appendFormat(".%d", dtohs(minorVersion)); 2825 } 2826 } 2827 2828 return res; 2829 } 2830 2831 // -------------------------------------------------------------------- 2832 // -------------------------------------------------------------------- 2833 // -------------------------------------------------------------------- 2834 2835 struct ResTable::Header 2836 { 2837 Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL), 2838 resourceIDMap(NULL), resourceIDMapSize(0) { } 2839 2840 ~Header() 2841 { 2842 free(resourceIDMap); 2843 } 2844 2845 const ResTable* const owner; 2846 void* ownedData; 2847 const ResTable_header* header; 2848 size_t size; 2849 const uint8_t* dataEnd; 2850 size_t index; 2851 int32_t cookie; 2852 2853 ResStringPool values; 2854 uint32_t* resourceIDMap; 2855 size_t resourceIDMapSize; 2856 }; 2857 2858 struct ResTable::Entry { 2859 ResTable_config config; 2860 const ResTable_entry* entry; 2861 const ResTable_type* type; 2862 uint32_t specFlags; 2863 const Package* package; 2864 2865 StringPoolRef typeStr; 2866 StringPoolRef keyStr; 2867 }; 2868 2869 struct ResTable::Type 2870 { 2871 Type(const Header* _header, const Package* _package, size_t count) 2872 : header(_header), package(_package), entryCount(count), 2873 typeSpec(NULL), typeSpecFlags(NULL) { } 2874 const Header* const header; 2875 const Package* const package; 2876 const size_t entryCount; 2877 const ResTable_typeSpec* typeSpec; 2878 const uint32_t* typeSpecFlags; 2879 IdmapEntries idmapEntries; 2880 Vector<const ResTable_type*> configs; 2881 }; 2882 2883 struct ResTable::Package 2884 { 2885 Package(ResTable* _owner, const Header* _header, const ResTable_package* _package) 2886 : owner(_owner), header(_header), package(_package), typeIdOffset(0) { 2887 if (dtohs(package->header.headerSize) == sizeof(package)) { 2888 // The package structure is the same size as the definition. 2889 // This means it contains the typeIdOffset field. 2890 typeIdOffset = package->typeIdOffset; 2891 } 2892 } 2893 2894 const ResTable* const owner; 2895 const Header* const header; 2896 const ResTable_package* const package; 2897 2898 ResStringPool typeStrings; 2899 ResStringPool keyStrings; 2900 2901 size_t typeIdOffset; 2902 }; 2903 2904 // A group of objects describing a particular resource package. 2905 // The first in 'package' is always the root object (from the resource 2906 // table that defined the package); the ones after are skins on top of it. 2907 struct ResTable::PackageGroup 2908 { 2909 PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id) 2910 : owner(_owner) 2911 , name(_name) 2912 , id(_id) 2913 , largestTypeId(0) 2914 , bags(NULL) 2915 , dynamicRefTable(static_cast<uint8_t>(_id)) 2916 { } 2917 2918 ~PackageGroup() { 2919 clearBagCache(); 2920 const size_t numTypes = types.size(); 2921 for (size_t i = 0; i < numTypes; i++) { 2922 const TypeList& typeList = types[i]; 2923 const size_t numInnerTypes = typeList.size(); 2924 for (size_t j = 0; j < numInnerTypes; j++) { 2925 if (typeList[j]->package->owner == owner) { 2926 delete typeList[j]; 2927 } 2928 } 2929 } 2930 2931 const size_t N = packages.size(); 2932 for (size_t i=0; i<N; i++) { 2933 Package* pkg = packages[i]; 2934 if (pkg->owner == owner) { 2935 delete pkg; 2936 } 2937 } 2938 } 2939 2940 void clearBagCache() { 2941 if (bags) { 2942 TABLE_NOISY(printf("bags=%p\n", bags)); 2943 for (size_t i = 0; i < bags->size(); i++) { 2944 TABLE_NOISY(printf("type=%d\n", i)); 2945 const TypeList& typeList = types[i]; 2946 if (!typeList.isEmpty()) { 2947 bag_set** typeBags = bags->get(i); 2948 TABLE_NOISY(printf("typeBags=%p\n", typeBags)); 2949 if (typeBags) { 2950 const size_t N = typeList[0]->entryCount; 2951 TABLE_NOISY(printf("type->entryCount=%x\n", N)); 2952 for (size_t j=0; j<N; j++) { 2953 if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF) 2954 free(typeBags[j]); 2955 } 2956 free(typeBags); 2957 } 2958 } 2959 } 2960 delete bags; 2961 bags = NULL; 2962 } 2963 } 2964 2965 ssize_t findType16(const char16_t* type, size_t len) const { 2966 const size_t N = packages.size(); 2967 for (size_t i = 0; i < N; i++) { 2968 ssize_t index = packages[i]->typeStrings.indexOfString(type, len); 2969 if (index >= 0) { 2970 return index + packages[i]->typeIdOffset; 2971 } 2972 } 2973 return -1; 2974 } 2975 2976 const ResTable* const owner; 2977 String16 const name; 2978 uint32_t const id; 2979 2980 // This is mainly used to keep track of the loaded packages 2981 // and to clean them up properly. Accessing resources happens from 2982 // the 'types' array. 2983 Vector<Package*> packages; 2984 2985 ByteBucketArray<TypeList> types; 2986 2987 uint8_t largestTypeId; 2988 2989 // Computed attribute bags, first indexed by the type and second 2990 // by the entry in that type. 2991 ByteBucketArray<bag_set**>* bags; 2992 2993 // The table mapping dynamic references to resolved references for 2994 // this package group. 2995 // TODO: We may be able to support dynamic references in overlays 2996 // by having these tables in a per-package scope rather than 2997 // per-package-group. 2998 DynamicRefTable dynamicRefTable; 2999 }; 3000 3001 struct ResTable::bag_set 3002 { 3003 size_t numAttrs; // number in array 3004 size_t availAttrs; // total space in array 3005 uint32_t typeSpecFlags; 3006 // Followed by 'numAttr' bag_entry structures. 3007 }; 3008 3009 ResTable::Theme::Theme(const ResTable& table) 3010 : mTable(table) 3011 { 3012 memset(mPackages, 0, sizeof(mPackages)); 3013 } 3014 3015 ResTable::Theme::~Theme() 3016 { 3017 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3018 package_info* pi = mPackages[i]; 3019 if (pi != NULL) { 3020 free_package(pi); 3021 } 3022 } 3023 } 3024 3025 void ResTable::Theme::free_package(package_info* pi) 3026 { 3027 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3028 theme_entry* te = pi->types[j].entries; 3029 if (te != NULL) { 3030 free(te); 3031 } 3032 } 3033 free(pi); 3034 } 3035 3036 ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi) 3037 { 3038 package_info* newpi = (package_info*)malloc(sizeof(package_info)); 3039 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3040 size_t cnt = pi->types[j].numEntries; 3041 newpi->types[j].numEntries = cnt; 3042 theme_entry* te = pi->types[j].entries; 3043 if (te != NULL) { 3044 theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 3045 newpi->types[j].entries = newte; 3046 memcpy(newte, te, cnt*sizeof(theme_entry)); 3047 } else { 3048 newpi->types[j].entries = NULL; 3049 } 3050 } 3051 return newpi; 3052 } 3053 3054 status_t ResTable::Theme::applyStyle(uint32_t resID, bool force) 3055 { 3056 const bag_entry* bag; 3057 uint32_t bagTypeSpecFlags = 0; 3058 mTable.lock(); 3059 const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags); 3060 TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N)); 3061 if (N < 0) { 3062 mTable.unlock(); 3063 return N; 3064 } 3065 3066 uint32_t curPackage = 0xffffffff; 3067 ssize_t curPackageIndex = 0; 3068 package_info* curPI = NULL; 3069 uint32_t curType = 0xffffffff; 3070 size_t numEntries = 0; 3071 theme_entry* curEntries = NULL; 3072 3073 const bag_entry* end = bag + N; 3074 while (bag < end) { 3075 const uint32_t attrRes = bag->map.name.ident; 3076 const uint32_t p = Res_GETPACKAGE(attrRes); 3077 const uint32_t t = Res_GETTYPE(attrRes); 3078 const uint32_t e = Res_GETENTRY(attrRes); 3079 3080 if (curPackage != p) { 3081 const ssize_t pidx = mTable.getResourcePackageIndex(attrRes); 3082 if (pidx < 0) { 3083 ALOGE("Style contains key with bad package: 0x%08x\n", attrRes); 3084 bag++; 3085 continue; 3086 } 3087 curPackage = p; 3088 curPackageIndex = pidx; 3089 curPI = mPackages[pidx]; 3090 if (curPI == NULL) { 3091 PackageGroup* const grp = mTable.mPackageGroups[pidx]; 3092 curPI = (package_info*)malloc(sizeof(package_info)); 3093 memset(curPI, 0, sizeof(*curPI)); 3094 mPackages[pidx] = curPI; 3095 } 3096 curType = 0xffffffff; 3097 } 3098 if (curType != t) { 3099 if (t > Res_MAXTYPE) { 3100 ALOGE("Style contains key with bad type: 0x%08x\n", attrRes); 3101 bag++; 3102 continue; 3103 } 3104 curType = t; 3105 curEntries = curPI->types[t].entries; 3106 if (curEntries == NULL) { 3107 PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex]; 3108 const TypeList& typeList = grp->types[t]; 3109 int cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount; 3110 curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry)); 3111 memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry)); 3112 curPI->types[t].numEntries = cnt; 3113 curPI->types[t].entries = curEntries; 3114 } 3115 numEntries = curPI->types[t].numEntries; 3116 } 3117 if (e >= numEntries) { 3118 ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes); 3119 bag++; 3120 continue; 3121 } 3122 theme_entry* curEntry = curEntries + e; 3123 TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x", 3124 attrRes, bag->map.value.dataType, bag->map.value.data, 3125 curEntry->value.dataType)); 3126 if (force || curEntry->value.dataType == Res_value::TYPE_NULL) { 3127 curEntry->stringBlock = bag->stringBlock; 3128 curEntry->typeSpecFlags |= bagTypeSpecFlags; 3129 curEntry->value = bag->map.value; 3130 } 3131 3132 bag++; 3133 } 3134 3135 mTable.unlock(); 3136 3137 //ALOGI("Applying style 0x%08x (force=%d) theme %p...\n", resID, force, this); 3138 //dumpToLog(); 3139 3140 return NO_ERROR; 3141 } 3142 3143 status_t ResTable::Theme::setTo(const Theme& other) 3144 { 3145 //ALOGI("Setting theme %p from theme %p...\n", this, &other); 3146 //dumpToLog(); 3147 //other.dumpToLog(); 3148 3149 if (&mTable == &other.mTable) { 3150 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3151 if (mPackages[i] != NULL) { 3152 free_package(mPackages[i]); 3153 } 3154 if (other.mPackages[i] != NULL) { 3155 mPackages[i] = copy_package(other.mPackages[i]); 3156 } else { 3157 mPackages[i] = NULL; 3158 } 3159 } 3160 } else { 3161 // @todo: need to really implement this, not just copy 3162 // the system package (which is still wrong because it isn't 3163 // fixing up resource references). 3164 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3165 if (mPackages[i] != NULL) { 3166 free_package(mPackages[i]); 3167 } 3168 if (i == 0 && other.mPackages[i] != NULL) { 3169 mPackages[i] = copy_package(other.mPackages[i]); 3170 } else { 3171 mPackages[i] = NULL; 3172 } 3173 } 3174 } 3175 3176 //ALOGI("Final theme:"); 3177 //dumpToLog(); 3178 3179 return NO_ERROR; 3180 } 3181 3182 ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue, 3183 uint32_t* outTypeSpecFlags) const 3184 { 3185 int cnt = 20; 3186 3187 if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0; 3188 3189 do { 3190 const ssize_t p = mTable.getResourcePackageIndex(resID); 3191 const uint32_t t = Res_GETTYPE(resID); 3192 const uint32_t e = Res_GETENTRY(resID); 3193 3194 TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this)); 3195 3196 if (p >= 0) { 3197 const package_info* const pi = mPackages[p]; 3198 TABLE_THEME(ALOGI("Found package: %p", pi)); 3199 if (pi != NULL) { 3200 TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, Res_MAXTYPE + 1)); 3201 if (t <= Res_MAXTYPE) { 3202 const type_info& ti = pi->types[t]; 3203 TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries)); 3204 if (e < ti.numEntries) { 3205 const theme_entry& te = ti.entries[e]; 3206 if (outTypeSpecFlags != NULL) { 3207 *outTypeSpecFlags |= te.typeSpecFlags; 3208 } 3209 TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x", 3210 te.value.dataType, te.value.data)); 3211 const uint8_t type = te.value.dataType; 3212 if (type == Res_value::TYPE_ATTRIBUTE) { 3213 if (cnt > 0) { 3214 cnt--; 3215 resID = te.value.data; 3216 continue; 3217 } 3218 ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID); 3219 return BAD_INDEX; 3220 } else if (type != Res_value::TYPE_NULL) { 3221 *outValue = te.value; 3222 return te.stringBlock; 3223 } 3224 return BAD_INDEX; 3225 } 3226 } 3227 } 3228 } 3229 break; 3230 3231 } while (true); 3232 3233 return BAD_INDEX; 3234 } 3235 3236 ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue, 3237 ssize_t blockIndex, uint32_t* outLastRef, 3238 uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const 3239 { 3240 //printf("Resolving type=0x%x\n", inOutValue->dataType); 3241 if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) { 3242 uint32_t newTypeSpecFlags; 3243 blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags); 3244 TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n", 3245 (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data)); 3246 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags; 3247 //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType); 3248 if (blockIndex < 0) { 3249 return blockIndex; 3250 } 3251 } 3252 return mTable.resolveReference(inOutValue, blockIndex, outLastRef, 3253 inoutTypeSpecFlags, inoutConfig); 3254 } 3255 3256 void ResTable::Theme::dumpToLog() const 3257 { 3258 ALOGI("Theme %p:\n", this); 3259 for (size_t i=0; i<Res_MAXPACKAGE; i++) { 3260 package_info* pi = mPackages[i]; 3261 if (pi == NULL) continue; 3262 3263 ALOGI(" Package #0x%02x:\n", (int)(i + 1)); 3264 for (size_t j = 0; j <= Res_MAXTYPE; j++) { 3265 type_info& ti = pi->types[j]; 3266 if (ti.numEntries == 0) continue; 3267 ALOGI(" Type #0x%02x:\n", (int)(j + 1)); 3268 for (size_t k = 0; k < ti.numEntries; k++) { 3269 const theme_entry& te = ti.entries[k]; 3270 if (te.value.dataType == Res_value::TYPE_NULL) continue; 3271 ALOGI(" 0x%08x: t=0x%x, d=0x%08x (block=%d)\n", 3272 (int)Res_MAKEID(i, j, k), 3273 te.value.dataType, (int)te.value.data, (int)te.stringBlock); 3274 } 3275 } 3276 } 3277 } 3278 3279 ResTable::ResTable() 3280 : mError(NO_INIT), mNextPackageId(2) 3281 { 3282 memset(&mParams, 0, sizeof(mParams)); 3283 memset(mPackageMap, 0, sizeof(mPackageMap)); 3284 //ALOGI("Creating ResTable %p\n", this); 3285 } 3286 3287 ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData) 3288 : mError(NO_INIT), mNextPackageId(2) 3289 { 3290 memset(&mParams, 0, sizeof(mParams)); 3291 memset(mPackageMap, 0, sizeof(mPackageMap)); 3292 addInternal(data, size, NULL, 0, cookie, copyData); 3293 LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table"); 3294 //ALOGI("Creating ResTable %p\n", this); 3295 } 3296 3297 ResTable::~ResTable() 3298 { 3299 //ALOGI("Destroying ResTable in %p\n", this); 3300 uninit(); 3301 } 3302 3303 inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const 3304 { 3305 return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1; 3306 } 3307 3308 status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) { 3309 return addInternal(data, size, NULL, 0, cookie, copyData); 3310 } 3311 3312 status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize, 3313 const int32_t cookie, bool copyData) { 3314 return addInternal(data, size, idmapData, idmapDataSize, cookie, copyData); 3315 } 3316 3317 status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) { 3318 const void* data = asset->getBuffer(true); 3319 if (data == NULL) { 3320 ALOGW("Unable to get buffer of resource asset file"); 3321 return UNKNOWN_ERROR; 3322 } 3323 3324 return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, 0, cookie, copyData); 3325 } 3326 3327 status_t ResTable::add(Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData) { 3328 const void* data = asset->getBuffer(true); 3329 if (data == NULL) { 3330 ALOGW("Unable to get buffer of resource asset file"); 3331 return UNKNOWN_ERROR; 3332 } 3333 3334 size_t idmapSize = 0; 3335 const void* idmapData = NULL; 3336 if (idmapAsset != NULL) { 3337 idmapData = idmapAsset->getBuffer(true); 3338 if (idmapData == NULL) { 3339 ALOGW("Unable to get buffer of idmap asset file"); 3340 return UNKNOWN_ERROR; 3341 } 3342 idmapSize = static_cast<size_t>(idmapAsset->getLength()); 3343 } 3344 3345 return addInternal(data, static_cast<size_t>(asset->getLength()), 3346 idmapData, idmapSize, cookie, copyData); 3347 } 3348 3349 status_t ResTable::add(ResTable* src) 3350 { 3351 mError = src->mError; 3352 3353 for (size_t i=0; i<src->mHeaders.size(); i++) { 3354 mHeaders.add(src->mHeaders[i]); 3355 } 3356 3357 for (size_t i=0; i<src->mPackageGroups.size(); i++) { 3358 PackageGroup* srcPg = src->mPackageGroups[i]; 3359 PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id); 3360 for (size_t j=0; j<srcPg->packages.size(); j++) { 3361 pg->packages.add(srcPg->packages[j]); 3362 } 3363 3364 for (size_t j = 0; j < srcPg->types.size(); j++) { 3365 if (srcPg->types[j].isEmpty()) { 3366 continue; 3367 } 3368 3369 TypeList& typeList = pg->types.editItemAt(j); 3370 typeList.appendVector(srcPg->types[j]); 3371 } 3372 pg->dynamicRefTable.addMappings(srcPg->dynamicRefTable); 3373 pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId); 3374 mPackageGroups.add(pg); 3375 } 3376 3377 memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap)); 3378 3379 return mError; 3380 } 3381 3382 status_t ResTable::addEmpty(const int32_t cookie) { 3383 Header* header = new Header(this); 3384 header->index = mHeaders.size(); 3385 header->cookie = cookie; 3386 header->values.setToEmpty(); 3387 header->ownedData = calloc(1, sizeof(ResTable_header)); 3388 3389 ResTable_header* resHeader = (ResTable_header*) header->ownedData; 3390 resHeader->header.type = RES_TABLE_TYPE; 3391 resHeader->header.headerSize = sizeof(ResTable_header); 3392 resHeader->header.size = sizeof(ResTable_header); 3393 3394 header->header = (const ResTable_header*) resHeader; 3395 mHeaders.add(header); 3396 return (mError=NO_ERROR); 3397 } 3398 3399 status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize, 3400 const int32_t cookie, bool copyData) 3401 { 3402 if (!data) { 3403 return NO_ERROR; 3404 } 3405 3406 if (dataSize < sizeof(ResTable_header)) { 3407 ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).", 3408 (int) dataSize, (int) sizeof(ResTable_header)); 3409 return UNKNOWN_ERROR; 3410 } 3411 3412 Header* header = new Header(this); 3413 header->index = mHeaders.size(); 3414 header->cookie = cookie; 3415 if (idmapData != NULL) { 3416 header->resourceIDMap = (uint32_t*) malloc(idmapDataSize); 3417 if (header->resourceIDMap == NULL) { 3418 delete header; 3419 return (mError = NO_MEMORY); 3420 } 3421 memcpy(header->resourceIDMap, idmapData, idmapDataSize); 3422 header->resourceIDMapSize = idmapDataSize; 3423 } 3424 mHeaders.add(header); 3425 3426 const bool notDeviceEndian = htods(0xf0) != 0xf0; 3427 3428 LOAD_TABLE_NOISY( 3429 ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%d, copy=%d " 3430 "idmap=%p\n", data, dataSize, cookie, copyData, idmap)); 3431 3432 if (copyData || notDeviceEndian) { 3433 header->ownedData = malloc(dataSize); 3434 if (header->ownedData == NULL) { 3435 return (mError=NO_MEMORY); 3436 } 3437 memcpy(header->ownedData, data, dataSize); 3438 data = header->ownedData; 3439 } 3440 3441 header->header = (const ResTable_header*)data; 3442 header->size = dtohl(header->header->header.size); 3443 //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size, 3444 // dtohl(header->header->header.size), header->header->header.size); 3445 LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header)); 3446 if (dtohs(header->header->header.headerSize) > header->size 3447 || header->size > dataSize) { 3448 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n", 3449 (int)dtohs(header->header->header.headerSize), 3450 (int)header->size, (int)dataSize); 3451 return (mError=BAD_TYPE); 3452 } 3453 if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) { 3454 ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n", 3455 (int)dtohs(header->header->header.headerSize), 3456 (int)header->size); 3457 return (mError=BAD_TYPE); 3458 } 3459 header->dataEnd = ((const uint8_t*)header->header) + header->size; 3460 3461 // Iterate through all chunks. 3462 size_t curPackage = 0; 3463 3464 const ResChunk_header* chunk = 3465 (const ResChunk_header*)(((const uint8_t*)header->header) 3466 + dtohs(header->header->header.headerSize)); 3467 while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) && 3468 ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) { 3469 status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable"); 3470 if (err != NO_ERROR) { 3471 return (mError=err); 3472 } 3473 TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n", 3474 dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size), 3475 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)))); 3476 const size_t csize = dtohl(chunk->size); 3477 const uint16_t ctype = dtohs(chunk->type); 3478 if (ctype == RES_STRING_POOL_TYPE) { 3479 if (header->values.getError() != NO_ERROR) { 3480 // Only use the first string chunk; ignore any others that 3481 // may appear. 3482 status_t err = header->values.setTo(chunk, csize); 3483 if (err != NO_ERROR) { 3484 return (mError=err); 3485 } 3486 } else { 3487 ALOGW("Multiple string chunks found in resource table."); 3488 } 3489 } else if (ctype == RES_TABLE_PACKAGE_TYPE) { 3490 if (curPackage >= dtohl(header->header->packageCount)) { 3491 ALOGW("More package chunks were found than the %d declared in the header.", 3492 dtohl(header->header->packageCount)); 3493 return (mError=BAD_TYPE); 3494 } 3495 3496 if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) { 3497 return mError; 3498 } 3499 curPackage++; 3500 } else { 3501 ALOGW("Unknown chunk type 0x%x in table at %p.\n", 3502 ctype, 3503 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))); 3504 } 3505 chunk = (const ResChunk_header*) 3506 (((const uint8_t*)chunk) + csize); 3507 } 3508 3509 if (curPackage < dtohl(header->header->packageCount)) { 3510 ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.", 3511 (int)curPackage, dtohl(header->header->packageCount)); 3512 return (mError=BAD_TYPE); 3513 } 3514 mError = header->values.getError(); 3515 if (mError != NO_ERROR) { 3516 ALOGW("No string values found in resource table!"); 3517 } 3518 3519 TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError)); 3520 return mError; 3521 } 3522 3523 status_t ResTable::getError() const 3524 { 3525 return mError; 3526 } 3527 3528 void ResTable::uninit() 3529 { 3530 mError = NO_INIT; 3531 size_t N = mPackageGroups.size(); 3532 for (size_t i=0; i<N; i++) { 3533 PackageGroup* g = mPackageGroups[i]; 3534 delete g; 3535 } 3536 N = mHeaders.size(); 3537 for (size_t i=0; i<N; i++) { 3538 Header* header = mHeaders[i]; 3539 if (header->owner == this) { 3540 if (header->ownedData) { 3541 free(header->ownedData); 3542 } 3543 delete header; 3544 } 3545 } 3546 3547 mPackageGroups.clear(); 3548 mHeaders.clear(); 3549 } 3550 3551 bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const 3552 { 3553 if (mError != NO_ERROR) { 3554 return false; 3555 } 3556 3557 const ssize_t p = getResourcePackageIndex(resID); 3558 const int t = Res_GETTYPE(resID); 3559 const int e = Res_GETENTRY(resID); 3560 3561 if (p < 0) { 3562 if (Res_GETPACKAGE(resID)+1 == 0) { 3563 ALOGW("No package identifier when getting name for resource number 0x%08x", resID); 3564 } else { 3565 ALOGW("No known package when getting name for resource number 0x%08x", resID); 3566 } 3567 return false; 3568 } 3569 if (t < 0) { 3570 ALOGW("No type identifier when getting name for resource number 0x%08x", resID); 3571 return false; 3572 } 3573 3574 const PackageGroup* const grp = mPackageGroups[p]; 3575 if (grp == NULL) { 3576 ALOGW("Bad identifier when getting name for resource number 0x%08x", resID); 3577 return false; 3578 } 3579 3580 Entry entry; 3581 status_t err = getEntry(grp, t, e, NULL, &entry); 3582 if (err != NO_ERROR) { 3583 return false; 3584 } 3585 3586 outName->package = grp->name.string(); 3587 outName->packageLen = grp->name.size(); 3588 if (allowUtf8) { 3589 outName->type8 = entry.typeStr.string8(&outName->typeLen); 3590 outName->name8 = entry.keyStr.string8(&outName->nameLen); 3591 } else { 3592 outName->type8 = NULL; 3593 outName->name8 = NULL; 3594 } 3595 if (outName->type8 == NULL) { 3596 outName->type = entry.typeStr.string16(&outName->typeLen); 3597 // If we have a bad index for some reason, we should abort. 3598 if (outName->type == NULL) { 3599 return false; 3600 } 3601 } 3602 if (outName->name8 == NULL) { 3603 outName->name = entry.keyStr.string16(&outName->nameLen); 3604 // If we have a bad index for some reason, we should abort. 3605 if (outName->name == NULL) { 3606 return false; 3607 } 3608 } 3609 3610 return true; 3611 } 3612 3613 ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density, 3614 uint32_t* outSpecFlags, ResTable_config* outConfig) const 3615 { 3616 if (mError != NO_ERROR) { 3617 return mError; 3618 } 3619 3620 const ssize_t p = getResourcePackageIndex(resID); 3621 const int t = Res_GETTYPE(resID); 3622 const int e = Res_GETENTRY(resID); 3623 3624 if (p < 0) { 3625 if (Res_GETPACKAGE(resID)+1 == 0) { 3626 ALOGW("No package identifier when getting value for resource number 0x%08x", resID); 3627 } else { 3628 ALOGW("No known package when getting value for resource number 0x%08x", resID); 3629 } 3630 return BAD_INDEX; 3631 } 3632 if (t < 0) { 3633 ALOGW("No type identifier when getting value for resource number 0x%08x", resID); 3634 return BAD_INDEX; 3635 } 3636 3637 const PackageGroup* const grp = mPackageGroups[p]; 3638 if (grp == NULL) { 3639 ALOGW("Bad identifier when getting value for resource number 0x%08x", resID); 3640 return BAD_INDEX; 3641 } 3642 3643 // Allow overriding density 3644 ResTable_config desiredConfig = mParams; 3645 if (density > 0) { 3646 desiredConfig.density = density; 3647 } 3648 3649 Entry entry; 3650 status_t err = getEntry(grp, t, e, &desiredConfig, &entry); 3651 if (err != NO_ERROR) { 3652 // Only log the failure when we're not running on the host as 3653 // part of a tool. The caller will do its own logging. 3654 #ifndef STATIC_ANDROIDFW_FOR_TOOLS 3655 ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n", 3656 resID, t, e, err); 3657 #endif 3658 return err; 3659 } 3660 3661 if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) { 3662 if (!mayBeBag) { 3663 ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID); 3664 } 3665 return BAD_VALUE; 3666 } 3667 3668 const Res_value* value = reinterpret_cast<const Res_value*>( 3669 reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size); 3670 3671 outValue->size = dtohs(value->size); 3672 outValue->res0 = value->res0; 3673 outValue->dataType = value->dataType; 3674 outValue->data = dtohl(value->data); 3675 3676 // The reference may be pointing to a resource in a shared library. These 3677 // references have build-time generated package IDs. These ids may not match 3678 // the actual package IDs of the corresponding packages in this ResTable. 3679 // We need to fix the package ID based on a mapping. 3680 if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) { 3681 ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data); 3682 return BAD_VALUE; 3683 } 3684 3685 TABLE_NOISY(size_t len; 3686 printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n", 3687 entry.package->header->index, 3688 outValue->dataType, 3689 outValue->dataType == Res_value::TYPE_STRING 3690 ? String8(entry.package->header->values.stringAt( 3691 outValue->data, &len)).string() 3692 : "", 3693 outValue->data)); 3694 3695 if (outSpecFlags != NULL) { 3696 *outSpecFlags = entry.specFlags; 3697 } 3698 3699 if (outConfig != NULL) { 3700 *outConfig = entry.config; 3701 } 3702 3703 return entry.package->header->index; 3704 } 3705 3706 ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex, 3707 uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags, 3708 ResTable_config* outConfig) const 3709 { 3710 int count=0; 3711 while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE 3712 && value->data != 0 && count < 20) { 3713 if (outLastRef) *outLastRef = value->data; 3714 uint32_t lastRef = value->data; 3715 uint32_t newFlags = 0; 3716 const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags, 3717 outConfig); 3718 if (newIndex == BAD_INDEX) { 3719 return BAD_INDEX; 3720 } 3721 TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n", 3722 (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data)); 3723 //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex); 3724 if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags; 3725 if (newIndex < 0) { 3726 // This can fail if the resource being referenced is a style... 3727 // in this case, just return the reference, and expect the 3728 // caller to deal with. 3729 return blockIndex; 3730 } 3731 blockIndex = newIndex; 3732 count++; 3733 } 3734 return blockIndex; 3735 } 3736 3737 const char16_t* ResTable::valueToString( 3738 const Res_value* value, size_t stringBlock, 3739 char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen) const 3740 { 3741 if (!value) { 3742 return NULL; 3743 } 3744 if (value->dataType == value->TYPE_STRING) { 3745 return getTableStringBlock(stringBlock)->stringAt(value->data, outLen); 3746 } 3747 // XXX do int to string conversions. 3748 return NULL; 3749 } 3750 3751 ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const 3752 { 3753 mLock.lock(); 3754 ssize_t err = getBagLocked(resID, outBag); 3755 if (err < NO_ERROR) { 3756 //printf("*** get failed! unlocking\n"); 3757 mLock.unlock(); 3758 } 3759 return err; 3760 } 3761 3762 void ResTable::unlockBag(const bag_entry* /*bag*/) const 3763 { 3764 //printf("<<< unlockBag %p\n", this); 3765 mLock.unlock(); 3766 } 3767 3768 void ResTable::lock() const 3769 { 3770 mLock.lock(); 3771 } 3772 3773 void ResTable::unlock() const 3774 { 3775 mLock.unlock(); 3776 } 3777 3778 ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag, 3779 uint32_t* outTypeSpecFlags) const 3780 { 3781 if (mError != NO_ERROR) { 3782 return mError; 3783 } 3784 3785 const ssize_t p = getResourcePackageIndex(resID); 3786 const int t = Res_GETTYPE(resID); 3787 const int e = Res_GETENTRY(resID); 3788 3789 if (p < 0) { 3790 ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID); 3791 return BAD_INDEX; 3792 } 3793 if (t < 0) { 3794 ALOGW("No type identifier when getting bag for resource number 0x%08x", resID); 3795 return BAD_INDEX; 3796 } 3797 3798 //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t); 3799 PackageGroup* const grp = mPackageGroups[p]; 3800 if (grp == NULL) { 3801 ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID); 3802 return BAD_INDEX; 3803 } 3804 3805 const TypeList& typeConfigs = grp->types[t]; 3806 if (typeConfigs.isEmpty()) { 3807 ALOGW("Type identifier 0x%x does not exist.", t+1); 3808 return BAD_INDEX; 3809 } 3810 3811 const size_t NENTRY = typeConfigs[0]->entryCount; 3812 if (e >= (int)NENTRY) { 3813 ALOGW("Entry identifier 0x%x is larger than entry count 0x%x", 3814 e, (int)typeConfigs[0]->entryCount); 3815 return BAD_INDEX; 3816 } 3817 3818 // First see if we've already computed this bag... 3819 if (grp->bags) { 3820 bag_set** typeSet = grp->bags->get(t); 3821 if (typeSet) { 3822 bag_set* set = typeSet[e]; 3823 if (set) { 3824 if (set != (bag_set*)0xFFFFFFFF) { 3825 if (outTypeSpecFlags != NULL) { 3826 *outTypeSpecFlags = set->typeSpecFlags; 3827 } 3828 *outBag = (bag_entry*)(set+1); 3829 //ALOGI("Found existing bag for: %p\n", (void*)resID); 3830 return set->numAttrs; 3831 } 3832 ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.", 3833 resID); 3834 return BAD_INDEX; 3835 } 3836 } 3837 } 3838 3839 // Bag not found, we need to compute it! 3840 if (!grp->bags) { 3841 grp->bags = new ByteBucketArray<bag_set**>(); 3842 if (!grp->bags) return NO_MEMORY; 3843 } 3844 3845 bag_set** typeSet = grp->bags->get(t); 3846 if (!typeSet) { 3847 typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*)); 3848 if (!typeSet) return NO_MEMORY; 3849 grp->bags->set(t, typeSet); 3850 } 3851 3852 // Mark that we are currently working on this one. 3853 typeSet[e] = (bag_set*)0xFFFFFFFF; 3854 3855 TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID)); 3856 3857 // Now collect all bag attributes 3858 Entry entry; 3859 status_t err = getEntry(grp, t, e, &mParams, &entry); 3860 if (err != NO_ERROR) { 3861 return err; 3862 } 3863 3864 const uint16_t entrySize = dtohs(entry.entry->size); 3865 const uint32_t parent = entrySize >= sizeof(ResTable_map_entry) 3866 ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0; 3867 const uint32_t count = entrySize >= sizeof(ResTable_map_entry) 3868 ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0; 3869 3870 size_t N = count; 3871 3872 TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n", 3873 entrySize, parent, count)); 3874 3875 // If this map inherits from another, we need to start 3876 // with its parent's values. Otherwise start out empty. 3877 TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n", 3878 entrySize, parent)); 3879 3880 // This is what we are building. 3881 bag_set* set = NULL; 3882 3883 if (parent) { 3884 uint32_t resolvedParent = parent; 3885 3886 // Bags encode a parent reference without using the standard 3887 // Res_value structure. That means we must always try to 3888 // resolve a parent reference in case it is actually a 3889 // TYPE_DYNAMIC_REFERENCE. 3890 status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent); 3891 if (err != NO_ERROR) { 3892 ALOGE("Failed resolving bag parent id 0x%08x", parent); 3893 return UNKNOWN_ERROR; 3894 } 3895 3896 const bag_entry* parentBag; 3897 uint32_t parentTypeSpecFlags = 0; 3898 const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags); 3899 const size_t NT = ((NP >= 0) ? NP : 0) + N; 3900 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT); 3901 if (set == NULL) { 3902 return NO_MEMORY; 3903 } 3904 if (NP > 0) { 3905 memcpy(set+1, parentBag, NP*sizeof(bag_entry)); 3906 set->numAttrs = NP; 3907 TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP)); 3908 } else { 3909 TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n")); 3910 set->numAttrs = 0; 3911 } 3912 set->availAttrs = NT; 3913 set->typeSpecFlags = parentTypeSpecFlags; 3914 } else { 3915 set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N); 3916 if (set == NULL) { 3917 return NO_MEMORY; 3918 } 3919 set->numAttrs = 0; 3920 set->availAttrs = N; 3921 set->typeSpecFlags = 0; 3922 } 3923 3924 set->typeSpecFlags |= entry.specFlags; 3925 3926 // Now merge in the new attributes... 3927 size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type)) 3928 + dtohs(entry.entry->size); 3929 const ResTable_map* map; 3930 bag_entry* entries = (bag_entry*)(set+1); 3931 size_t curEntry = 0; 3932 uint32_t pos = 0; 3933 TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n", 3934 set, entries, set->availAttrs)); 3935 while (pos < count) { 3936 TABLE_NOISY(printf("Now at %p\n", (void*)curOff)); 3937 3938 if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) { 3939 ALOGW("ResTable_map at %d is beyond type chunk data %d", 3940 (int)curOff, dtohl(entry.type->header.size)); 3941 return BAD_TYPE; 3942 } 3943 map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff); 3944 N++; 3945 3946 uint32_t newName = htodl(map->name.ident); 3947 if (!Res_INTERNALID(newName)) { 3948 // Attributes don't have a resource id as the name. They specify 3949 // other data, which would be wrong to change via a lookup. 3950 if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) { 3951 ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x", 3952 (int) curOff, (int) newName); 3953 return UNKNOWN_ERROR; 3954 } 3955 } 3956 3957 bool isInside; 3958 uint32_t oldName = 0; 3959 while ((isInside=(curEntry < set->numAttrs)) 3960 && (oldName=entries[curEntry].map.name.ident) < newName) { 3961 TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n", 3962 curEntry, entries[curEntry].map.name.ident)); 3963 curEntry++; 3964 } 3965 3966 if ((!isInside) || oldName != newName) { 3967 // This is a new attribute... figure out what to do with it. 3968 if (set->numAttrs >= set->availAttrs) { 3969 // Need to alloc more memory... 3970 const size_t newAvail = set->availAttrs+N; 3971 set = (bag_set*)realloc(set, 3972 sizeof(bag_set) 3973 + sizeof(bag_entry)*newAvail); 3974 if (set == NULL) { 3975 return NO_MEMORY; 3976 } 3977 set->availAttrs = newAvail; 3978 entries = (bag_entry*)(set+1); 3979 TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n", 3980 set, entries, set->availAttrs)); 3981 } 3982 if (isInside) { 3983 // Going in the middle, need to make space. 3984 memmove(entries+curEntry+1, entries+curEntry, 3985 sizeof(bag_entry)*(set->numAttrs-curEntry)); 3986 set->numAttrs++; 3987 } 3988 TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n", 3989 curEntry, newName)); 3990 } else { 3991 TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n", 3992 curEntry, oldName)); 3993 } 3994 3995 bag_entry* cur = entries+curEntry; 3996 3997 cur->stringBlock = entry.package->header->index; 3998 cur->map.name.ident = newName; 3999 cur->map.value.copyFrom_dtoh(map->value); 4000 status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value); 4001 if (err != NO_ERROR) { 4002 ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data); 4003 return UNKNOWN_ERROR; 4004 } 4005 4006 TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n", 4007 curEntry, cur, cur->stringBlock, cur->map.name.ident, 4008 cur->map.value.dataType, cur->map.value.data)); 4009 4010 // On to the next! 4011 curEntry++; 4012 pos++; 4013 const size_t size = dtohs(map->value.size); 4014 curOff += size + sizeof(*map)-sizeof(map->value); 4015 }; 4016 4017 if (curEntry > set->numAttrs) { 4018 set->numAttrs = curEntry; 4019 } 4020 4021 // And this is it... 4022 typeSet[e] = set; 4023 if (set) { 4024 if (outTypeSpecFlags != NULL) { 4025 *outTypeSpecFlags = set->typeSpecFlags; 4026 } 4027 *outBag = (bag_entry*)(set+1); 4028 TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs)); 4029 return set->numAttrs; 4030 } 4031 return BAD_INDEX; 4032 } 4033 4034 void ResTable::setParameters(const ResTable_config* params) 4035 { 4036 mLock.lock(); 4037 TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string())); 4038 mParams = *params; 4039 for (size_t i=0; i<mPackageGroups.size(); i++) { 4040 TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i)); 4041 mPackageGroups[i]->clearBagCache(); 4042 } 4043 mLock.unlock(); 4044 } 4045 4046 void ResTable::getParameters(ResTable_config* params) const 4047 { 4048 mLock.lock(); 4049 *params = mParams; 4050 mLock.unlock(); 4051 } 4052 4053 struct id_name_map { 4054 uint32_t id; 4055 size_t len; 4056 char16_t name[6]; 4057 }; 4058 4059 const static id_name_map ID_NAMES[] = { 4060 { ResTable_map::ATTR_TYPE, 5, { '^', 't', 'y', 'p', 'e' } }, 4061 { ResTable_map::ATTR_L10N, 5, { '^', 'l', '1', '0', 'n' } }, 4062 { ResTable_map::ATTR_MIN, 4, { '^', 'm', 'i', 'n' } }, 4063 { ResTable_map::ATTR_MAX, 4, { '^', 'm', 'a', 'x' } }, 4064 { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } }, 4065 { ResTable_map::ATTR_ZERO, 5, { '^', 'z', 'e', 'r', 'o' } }, 4066 { ResTable_map::ATTR_ONE, 4, { '^', 'o', 'n', 'e' } }, 4067 { ResTable_map::ATTR_TWO, 4, { '^', 't', 'w', 'o' } }, 4068 { ResTable_map::ATTR_FEW, 4, { '^', 'f', 'e', 'w' } }, 4069 { ResTable_map::ATTR_MANY, 5, { '^', 'm', 'a', 'n', 'y' } }, 4070 }; 4071 4072 uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen, 4073 const char16_t* type, size_t typeLen, 4074 const char16_t* package, 4075 size_t packageLen, 4076 uint32_t* outTypeSpecFlags) const 4077 { 4078 TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError)); 4079 4080 // Check for internal resource identifier as the very first thing, so 4081 // that we will always find them even when there are no resources. 4082 if (name[0] == '^') { 4083 const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0])); 4084 size_t len; 4085 for (int i=0; i<N; i++) { 4086 const id_name_map* m = ID_NAMES + i; 4087 len = m->len; 4088 if (len != nameLen) { 4089 continue; 4090 } 4091 for (size_t j=1; j<len; j++) { 4092 if (m->name[j] != name[j]) { 4093 goto nope; 4094 } 4095 } 4096 if (outTypeSpecFlags) { 4097 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4098 } 4099 return m->id; 4100 nope: 4101 ; 4102 } 4103 if (nameLen > 7) { 4104 if (name[1] == 'i' && name[2] == 'n' 4105 && name[3] == 'd' && name[4] == 'e' && name[5] == 'x' 4106 && name[6] == '_') { 4107 int index = atoi(String8(name + 7, nameLen - 7).string()); 4108 if (Res_CHECKID(index)) { 4109 ALOGW("Array resource index: %d is too large.", 4110 index); 4111 return 0; 4112 } 4113 if (outTypeSpecFlags) { 4114 *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC; 4115 } 4116 return Res_MAKEARRAY(index); 4117 } 4118 } 4119 return 0; 4120 } 4121 4122 if (mError != NO_ERROR) { 4123 return 0; 4124 } 4125 4126 bool fakePublic = false; 4127 4128 // Figure out the package and type we are looking in... 4129 4130 const char16_t* packageEnd = NULL; 4131 const char16_t* typeEnd = NULL; 4132 const char16_t* const nameEnd = name+nameLen; 4133 const char16_t* p = name; 4134 while (p < nameEnd) { 4135 if (*p == ':') packageEnd = p; 4136 else if (*p == '/') typeEnd = p; 4137 p++; 4138 } 4139 if (*name == '@') { 4140 name++; 4141 if (*name == '*') { 4142 fakePublic = true; 4143 name++; 4144 } 4145 } 4146 if (name >= nameEnd) { 4147 return 0; 4148 } 4149 4150 if (packageEnd) { 4151 package = name; 4152 packageLen = packageEnd-name; 4153 name = packageEnd+1; 4154 } else if (!package) { 4155 return 0; 4156 } 4157 4158 if (typeEnd) { 4159 type = name; 4160 typeLen = typeEnd-name; 4161 name = typeEnd+1; 4162 } else if (!type) { 4163 return 0; 4164 } 4165 4166 if (name >= nameEnd) { 4167 return 0; 4168 } 4169 nameLen = nameEnd-name; 4170 4171 TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n", 4172 String8(type, typeLen).string(), 4173 String8(name, nameLen).string(), 4174 String8(package, packageLen).string())); 4175 4176 const String16 attr("attr"); 4177 const String16 attrPrivate("^attr-private"); 4178 4179 const size_t NG = mPackageGroups.size(); 4180 for (size_t ig=0; ig<NG; ig++) { 4181 const PackageGroup* group = mPackageGroups[ig]; 4182 4183 if (strzcmp16(package, packageLen, 4184 group->name.string(), group->name.size())) { 4185 TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string())); 4186 continue; 4187 } 4188 4189 const size_t packageCount = group->packages.size(); 4190 for (size_t pi = 0; pi < packageCount; pi++) { 4191 const char16_t* targetType = type; 4192 size_t targetTypeLen = typeLen; 4193 4194 do { 4195 ssize_t ti = group->packages[pi]->typeStrings.indexOfString( 4196 targetType, targetTypeLen); 4197 if (ti < 0) { 4198 continue; 4199 } 4200 4201 ti += group->packages[pi]->typeIdOffset; 4202 4203 const uint32_t identifier = findEntry(group, ti, name, nameLen, 4204 outTypeSpecFlags); 4205 if (identifier != 0) { 4206 if (fakePublic && outTypeSpecFlags) { 4207 *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC; 4208 } 4209 return identifier; 4210 } 4211 } while (strzcmp16(attr.string(), attr.size(), targetType, targetTypeLen) == 0 4212 && (targetType = attrPrivate.string()) 4213 && (targetTypeLen = attrPrivate.size()) 4214 ); 4215 } 4216 break; 4217 } 4218 return 0; 4219 } 4220 4221 uint32_t ResTable::findEntry(const PackageGroup* group, ssize_t typeIndex, const char16_t* name, 4222 size_t nameLen, uint32_t* outTypeSpecFlags) const { 4223 const TypeList& typeList = group->types[typeIndex]; 4224 const size_t typeCount = typeList.size(); 4225 for (size_t i = 0; i < typeCount; i++) { 4226 const Type* t = typeList[i]; 4227 const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen); 4228 if (ei < 0) { 4229 continue; 4230 } 4231 4232 const size_t configCount = t->configs.size(); 4233 for (size_t j = 0; j < configCount; j++) { 4234 const TypeVariant tv(t->configs[j]); 4235 for (TypeVariant::iterator iter = tv.beginEntries(); 4236 iter != tv.endEntries(); 4237 iter++) { 4238 const ResTable_entry* entry = *iter; 4239 if (entry == NULL) { 4240 continue; 4241 } 4242 4243 if (dtohl(entry->key.index) == (size_t) ei) { 4244 uint32_t resId = Res_MAKEID(group->id - 1, typeIndex, iter.index()); 4245 if (outTypeSpecFlags) { 4246 Entry result; 4247 if (getEntry(group, typeIndex, iter.index(), NULL, &result) != NO_ERROR) { 4248 ALOGW("Failed to find spec flags for 0x%08x", resId); 4249 return 0; 4250 } 4251 *outTypeSpecFlags = result.specFlags; 4252 } 4253 return resId; 4254 } 4255 } 4256 } 4257 } 4258 return 0; 4259 } 4260 4261 bool ResTable::expandResourceRef(const char16_t* refStr, size_t refLen, 4262 String16* outPackage, 4263 String16* outType, 4264 String16* outName, 4265 const String16* defType, 4266 const String16* defPackage, 4267 const char** outErrorMsg, 4268 bool* outPublicOnly) 4269 { 4270 const char16_t* packageEnd = NULL; 4271 const char16_t* typeEnd = NULL; 4272 const char16_t* p = refStr; 4273 const char16_t* const end = p + refLen; 4274 while (p < end) { 4275 if (*p == ':') packageEnd = p; 4276 else if (*p == '/') { 4277 typeEnd = p; 4278 break; 4279 } 4280 p++; 4281 } 4282 p = refStr; 4283 if (*p == '@') p++; 4284 4285 if (outPublicOnly != NULL) { 4286 *outPublicOnly = true; 4287 } 4288 if (*p == '*') { 4289 p++; 4290 if (outPublicOnly != NULL) { 4291 *outPublicOnly = false; 4292 } 4293 } 4294 4295 if (packageEnd) { 4296 *outPackage = String16(p, packageEnd-p); 4297 p = packageEnd+1; 4298 } else { 4299 if (!defPackage) { 4300 if (outErrorMsg) { 4301 *outErrorMsg = "No resource package specified"; 4302 } 4303 return false; 4304 } 4305 *outPackage = *defPackage; 4306 } 4307 if (typeEnd) { 4308 *outType = String16(p, typeEnd-p); 4309 p = typeEnd+1; 4310 } else { 4311 if (!defType) { 4312 if (outErrorMsg) { 4313 *outErrorMsg = "No resource type specified"; 4314 } 4315 return false; 4316 } 4317 *outType = *defType; 4318 } 4319 *outName = String16(p, end-p); 4320 if(**outPackage == 0) { 4321 if(outErrorMsg) { 4322 *outErrorMsg = "Resource package cannot be an empty string"; 4323 } 4324 return false; 4325 } 4326 if(**outType == 0) { 4327 if(outErrorMsg) { 4328 *outErrorMsg = "Resource type cannot be an empty string"; 4329 } 4330 return false; 4331 } 4332 if(**outName == 0) { 4333 if(outErrorMsg) { 4334 *outErrorMsg = "Resource id cannot be an empty string"; 4335 } 4336 return false; 4337 } 4338 return true; 4339 } 4340 4341 static uint32_t get_hex(char c, bool* outError) 4342 { 4343 if (c >= '0' && c <= '9') { 4344 return c - '0'; 4345 } else if (c >= 'a' && c <= 'f') { 4346 return c - 'a' + 0xa; 4347 } else if (c >= 'A' && c <= 'F') { 4348 return c - 'A' + 0xa; 4349 } 4350 *outError = true; 4351 return 0; 4352 } 4353 4354 struct unit_entry 4355 { 4356 const char* name; 4357 size_t len; 4358 uint8_t type; 4359 uint32_t unit; 4360 float scale; 4361 }; 4362 4363 static const unit_entry unitNames[] = { 4364 { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f }, 4365 { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4366 { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f }, 4367 { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f }, 4368 { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f }, 4369 { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f }, 4370 { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f }, 4371 { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 }, 4372 { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 }, 4373 { NULL, 0, 0, 0, 0 } 4374 }; 4375 4376 static bool parse_unit(const char* str, Res_value* outValue, 4377 float* outScale, const char** outEnd) 4378 { 4379 const char* end = str; 4380 while (*end != 0 && !isspace((unsigned char)*end)) { 4381 end++; 4382 } 4383 const size_t len = end-str; 4384 4385 const char* realEnd = end; 4386 while (*realEnd != 0 && isspace((unsigned char)*realEnd)) { 4387 realEnd++; 4388 } 4389 if (*realEnd != 0) { 4390 return false; 4391 } 4392 4393 const unit_entry* cur = unitNames; 4394 while (cur->name) { 4395 if (len == cur->len && strncmp(cur->name, str, len) == 0) { 4396 outValue->dataType = cur->type; 4397 outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT; 4398 *outScale = cur->scale; 4399 *outEnd = end; 4400 //printf("Found unit %s for %s\n", cur->name, str); 4401 return true; 4402 } 4403 cur++; 4404 } 4405 4406 return false; 4407 } 4408 4409 4410 bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue) 4411 { 4412 while (len > 0 && isspace16(*s)) { 4413 s++; 4414 len--; 4415 } 4416 4417 if (len <= 0) { 4418 return false; 4419 } 4420 4421 size_t i = 0; 4422 int32_t val = 0; 4423 bool neg = false; 4424 4425 if (*s == '-') { 4426 neg = true; 4427 i++; 4428 } 4429 4430 if (s[i] < '0' || s[i] > '9') { 4431 return false; 4432 } 4433 4434 // Decimal or hex? 4435 if (s[i] == '0' && s[i+1] == 'x') { 4436 if (outValue) 4437 outValue->dataType = outValue->TYPE_INT_HEX; 4438 i += 2; 4439 bool error = false; 4440 while (i < len && !error) { 4441 val = (val*16) + get_hex(s[i], &error); 4442 i++; 4443 } 4444 if (error) { 4445 return false; 4446 } 4447 } else { 4448 if (outValue) 4449 outValue->dataType = outValue->TYPE_INT_DEC; 4450 while (i < len) { 4451 if (s[i] < '0' || s[i] > '9') { 4452 return false; 4453 } 4454 val = (val*10) + s[i]-'0'; 4455 i++; 4456 } 4457 } 4458 4459 if (neg) val = -val; 4460 4461 while (i < len && isspace16(s[i])) { 4462 i++; 4463 } 4464 4465 if (i == len) { 4466 if (outValue) 4467 outValue->data = val; 4468 return true; 4469 } 4470 4471 return false; 4472 } 4473 4474 bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue) 4475 { 4476 while (len > 0 && isspace16(*s)) { 4477 s++; 4478 len--;