1#define LOG_TAG "BitmapFactory" 2 3#include "BitmapFactory.h" 4#include "NinePatchPeeker.h" 5#include "SkFrontBufferedStream.h" 6#include "SkImageDecoder.h" 7#include "SkMath.h" 8#include "SkPixelRef.h" 9#include "SkStream.h" 10#include "SkTemplates.h" 11#include "SkUtils.h" 12#include "CreateJavaOutputStreamAdaptor.h" 13#include "AutoDecodeCancel.h" 14#include "Utils.h" 15#include "JNIHelp.h" 16#include "GraphicsJNI.h" 17 18#include "core_jni_helpers.h" 19#include <androidfw/Asset.h> 20#include <androidfw/ResourceTypes.h> 21#include <cutils/compiler.h> 22#include <netinet/in.h> 23#include <stdio.h> 24#include <sys/mman.h> 25#include <sys/stat.h> 26 27jfieldID gOptions_justBoundsFieldID; 28jfieldID gOptions_sampleSizeFieldID; 29jfieldID gOptions_configFieldID; 30jfieldID gOptions_premultipliedFieldID; 31jfieldID gOptions_mutableFieldID; 32jfieldID gOptions_ditherFieldID; 33jfieldID gOptions_preferQualityOverSpeedFieldID; 34jfieldID gOptions_scaledFieldID; 35jfieldID gOptions_densityFieldID; 36jfieldID gOptions_screenDensityFieldID; 37jfieldID gOptions_targetDensityFieldID; 38jfieldID gOptions_widthFieldID; 39jfieldID gOptions_heightFieldID; 40jfieldID gOptions_mimeFieldID; 41jfieldID gOptions_mCancelID; 42jfieldID gOptions_bitmapFieldID; 43 44jfieldID gBitmap_ninePatchInsetsFieldID; 45 46jclass gInsetStruct_class; 47jmethodID gInsetStruct_constructorMethodID; 48 49using namespace android; 50 51jstring getMimeTypeString(JNIEnv* env, SkImageDecoder::Format format) { 52 static const struct { 53 SkImageDecoder::Format fFormat; 54 const char* fMimeType; 55 } gMimeTypes[] = { 56 { SkImageDecoder::kBMP_Format, "image/bmp" }, 57 { SkImageDecoder::kGIF_Format, "image/gif" }, 58 { SkImageDecoder::kICO_Format, "image/x-ico" }, 59 { SkImageDecoder::kJPEG_Format, "image/jpeg" }, 60 { SkImageDecoder::kPNG_Format, "image/png" }, 61 { SkImageDecoder::kWEBP_Format, "image/webp" }, 62 { SkImageDecoder::kWBMP_Format, "image/vnd.wap.wbmp" } 63 }; 64 65 const char* cstr = nullptr; 66 for (size_t i = 0; i < SK_ARRAY_COUNT(gMimeTypes); i++) { 67 if (gMimeTypes[i].fFormat == format) { 68 cstr = gMimeTypes[i].fMimeType; 69 break; 70 } 71 } 72 73 jstring jstr = nullptr; 74 if (cstr != nullptr) { 75 // NOTE: Caller should env->ExceptionCheck() for OOM 76 // (can't check for nullptr as it's a valid return value) 77 jstr = env->NewStringUTF(cstr); 78 } 79 return jstr; 80} 81 82static bool optionsJustBounds(JNIEnv* env, jobject options) { 83 return options != NULL && env->GetBooleanField(options, gOptions_justBoundsFieldID); 84} 85 86static void scaleDivRange(int32_t* divs, int count, float scale, int maxValue) { 87 for (int i = 0; i < count; i++) { 88 divs[i] = int32_t(divs[i] * scale + 0.5f); 89 if (i > 0 && divs[i] == divs[i - 1]) { 90 divs[i]++; // avoid collisions 91 } 92 } 93 94 if (CC_UNLIKELY(divs[count - 1] > maxValue)) { 95 // if the collision avoidance above put some divs outside the bounds of the bitmap, 96 // slide outer stretchable divs inward to stay within bounds 97 int highestAvailable = maxValue; 98 for (int i = count - 1; i >= 0; i--) { 99 divs[i] = highestAvailable; 100 if (i > 0 && divs[i] <= divs[i-1]){ 101 // keep shifting 102 highestAvailable = divs[i] - 1; 103 } else { 104 break; 105 } 106 } 107 } 108} 109 110static void scaleNinePatchChunk(android::Res_png_9patch* chunk, float scale, 111 int scaledWidth, int scaledHeight) { 112 chunk->paddingLeft = int(chunk->paddingLeft * scale + 0.5f); 113 chunk->paddingTop = int(chunk->paddingTop * scale + 0.5f); 114 chunk->paddingRight = int(chunk->paddingRight * scale + 0.5f); 115 chunk->paddingBottom = int(chunk->paddingBottom * scale + 0.5f); 116 117 scaleDivRange(chunk->getXDivs(), chunk->numXDivs, scale, scaledWidth); 118 scaleDivRange(chunk->getYDivs(), chunk->numYDivs, scale, scaledHeight); 119} 120 121static SkColorType colorTypeForScaledOutput(SkColorType colorType) { 122 switch (colorType) { 123 case kUnknown_SkColorType: 124 case kIndex_8_SkColorType: 125 return kN32_SkColorType; 126 default: 127 break; 128 } 129 return colorType; 130} 131 132class ScaleCheckingAllocator : public SkBitmap::HeapAllocator { 133public: 134 ScaleCheckingAllocator(float scale, int size) 135 : mScale(scale), mSize(size) { 136 } 137 138 virtual bool allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 139 // accounts for scale in final allocation, using eventual size and config 140 const int bytesPerPixel = SkColorTypeBytesPerPixel( 141 colorTypeForScaledOutput(bitmap->colorType())); 142 const int requestedSize = bytesPerPixel * 143 int(bitmap->width() * mScale + 0.5f) * 144 int(bitmap->height() * mScale + 0.5f); 145 if (requestedSize > mSize) { 146 ALOGW("bitmap for alloc reuse (%d bytes) can't fit scaled bitmap (%d bytes)", 147 mSize, requestedSize); 148 return false; 149 } 150 return SkBitmap::HeapAllocator::allocPixelRef(bitmap, ctable); 151 } 152private: 153 const float mScale; 154 const int mSize; 155}; 156 157class RecyclingPixelAllocator : public SkBitmap::Allocator { 158public: 159 RecyclingPixelAllocator(android::Bitmap* bitmap, unsigned int size) 160 : mBitmap(bitmap), mSize(size) { 161 } 162 163 ~RecyclingPixelAllocator() { 164 } 165 166 virtual bool allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { 167 const SkImageInfo& info = bitmap->info(); 168 if (info.fColorType == kUnknown_SkColorType) { 169 ALOGW("unable to reuse a bitmap as the target has an unknown bitmap configuration"); 170 return false; 171 } 172 173 const int64_t size64 = info.getSafeSize64(bitmap->rowBytes()); 174 if (!sk_64_isS32(size64)) { 175 ALOGW("bitmap is too large"); 176 return false; 177 } 178 179 const size_t size = sk_64_asS32(size64); 180 if (size > mSize) { 181 ALOGW("bitmap marked for reuse (%u bytes) can't fit new bitmap " 182 "(%zu bytes)", mSize, size); 183 return false; 184 } 185 186 mBitmap->reconfigure(info, bitmap->rowBytes(), ctable); 187 bitmap->setPixelRef(mBitmap->refPixelRef())->unref(); 188 189 // since we're already allocated, we lockPixels right away 190 // HeapAllocator/JavaPixelAllocator behaves this way too 191 bitmap->lockPixels(); 192 return true; 193 } 194 195private: 196 android::Bitmap* const mBitmap; 197 const unsigned int mSize; 198}; 199 200static jobject doDecode(JNIEnv* env, SkStreamRewindable* stream, jobject padding, jobject options) { 201 202 int sampleSize = 1; 203 204 SkImageDecoder::Mode decodeMode = SkImageDecoder::kDecodePixels_Mode; 205 SkColorType prefColorType = kN32_SkColorType; 206 207 bool doDither = true; 208 bool isMutable = false; 209 float scale = 1.0f; 210 bool preferQualityOverSpeed = false; 211 bool requireUnpremultiplied = false; 212 213 jobject javaBitmap = NULL; 214 215 if (options != NULL) { 216 sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID); 217 if (optionsJustBounds(env, options)) { 218 decodeMode = SkImageDecoder::kDecodeBounds_Mode; 219 } 220 221 // initialize these, in case we fail later on 222 env->SetIntField(options, gOptions_widthFieldID, -1); 223 env->SetIntField(options, gOptions_heightFieldID, -1); 224 env->SetObjectField(options, gOptions_mimeFieldID, 0); 225 226 jobject jconfig = env->GetObjectField(options, gOptions_configFieldID); 227 prefColorType = GraphicsJNI::getNativeBitmapColorType(env, jconfig); 228 isMutable = env->GetBooleanField(options, gOptions_mutableFieldID); 229 doDither = env->GetBooleanField(options, gOptions_ditherFieldID); 230 preferQualityOverSpeed = env->GetBooleanField(options, 231 gOptions_preferQualityOverSpeedFieldID); 232 requireUnpremultiplied = !env->GetBooleanField(options, gOptions_premultipliedFieldID); 233 javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID); 234 235 if (env->GetBooleanField(options, gOptions_scaledFieldID)) { 236 const int density = env->GetIntField(options, gOptions_densityFieldID); 237 const int targetDensity = env->GetIntField(options, gOptions_targetDensityFieldID); 238 const int screenDensity = env->GetIntField(options, gOptions_screenDensityFieldID); 239 if (density != 0 && targetDensity != 0 && density != screenDensity) { 240 scale = (float) targetDensity / density; 241 } 242 } 243 } 244 245 const bool willScale = scale != 1.0f; 246 247 SkImageDecoder* decoder = SkImageDecoder::Factory(stream); 248 if (decoder == NULL) { 249 return nullObjectReturn("SkImageDecoder::Factory returned null"); 250 } 251 252 decoder->setSampleSize(sampleSize); 253 decoder->setDitherImage(doDither); 254 decoder->setPreferQualityOverSpeed(preferQualityOverSpeed); 255 decoder->setRequireUnpremultipliedColors(requireUnpremultiplied); 256 257 android::Bitmap* reuseBitmap = nullptr; 258 unsigned int existingBufferSize = 0; 259 if (javaBitmap != NULL) { 260 reuseBitmap = GraphicsJNI::getBitmap(env, javaBitmap); 261 if (reuseBitmap->peekAtPixelRef()->isImmutable()) { 262 ALOGW("Unable to reuse an immutable bitmap as an image decoder target."); 263 javaBitmap = NULL; 264 reuseBitmap = nullptr; 265 } else { 266 existingBufferSize = GraphicsJNI::getBitmapAllocationByteCount(env, javaBitmap); 267 } 268 } 269 270 NinePatchPeeker peeker(decoder); 271 decoder->setPeeker(&peeker); 272 273 JavaPixelAllocator javaAllocator(env); 274 RecyclingPixelAllocator recyclingAllocator(reuseBitmap, existingBufferSize); 275 ScaleCheckingAllocator scaleCheckingAllocator(scale, existingBufferSize); 276 SkBitmap::Allocator* outputAllocator = (javaBitmap != NULL) ? 277 (SkBitmap::Allocator*)&recyclingAllocator : (SkBitmap::Allocator*)&javaAllocator; 278 if (decodeMode != SkImageDecoder::kDecodeBounds_Mode) { 279 if (!willScale) { 280 // If the java allocator is being used to allocate the pixel memory, the decoder 281 // need not write zeroes, since the memory is initialized to 0. 282 decoder->setSkipWritingZeroes(outputAllocator == &javaAllocator); 283 decoder->setAllocator(outputAllocator); 284 } else if (javaBitmap != NULL) { 285 // check for eventual scaled bounds at allocation time, so we don't decode the bitmap 286 // only to find the scaled result too large to fit in the allocation 287 decoder->setAllocator(&scaleCheckingAllocator); 288 } 289 } 290 291 // Only setup the decoder to be deleted after its stack-based, refcounted 292 // components (allocators, peekers, etc) are declared. This prevents RefCnt 293 // asserts from firing due to the order objects are deleted from the stack. 294 SkAutoTDelete<SkImageDecoder> add(decoder); 295 296 AutoDecoderCancel adc(options, decoder); 297 298 // To fix the race condition in case "requestCancelDecode" 299 // happens earlier than AutoDecoderCancel object is added 300 // to the gAutoDecoderCancelMutex linked list. 301 if (options != NULL && env->GetBooleanField(options, gOptions_mCancelID)) { 302 return nullObjectReturn("gOptions_mCancelID"); 303 } 304 305 SkBitmap decodingBitmap; 306 if (decoder->decode(stream, &decodingBitmap, prefColorType, decodeMode) 307 != SkImageDecoder::kSuccess) { 308 return nullObjectReturn("decoder->decode returned false"); 309 } 310 311 int scaledWidth = decodingBitmap.width(); 312 int scaledHeight = decodingBitmap.height(); 313 314 if (willScale && decodeMode != SkImageDecoder::kDecodeBounds_Mode) { 315 scaledWidth = int(scaledWidth * scale + 0.5f); 316 scaledHeight = int(scaledHeight * scale + 0.5f); 317 } 318 319 // update options (if any) 320 if (options != NULL) { 321 jstring mimeType = getMimeTypeString(env, decoder->getFormat()); 322 if (env->ExceptionCheck()) { 323 return nullObjectReturn("OOM in getMimeTypeString()"); 324 } 325 env->SetIntField(options, gOptions_widthFieldID, scaledWidth); 326 env->SetIntField(options, gOptions_heightFieldID, scaledHeight); 327 env->SetObjectField(options, gOptions_mimeFieldID, mimeType); 328 } 329 330 // if we're in justBounds mode, return now (skip the java bitmap) 331 if (decodeMode == SkImageDecoder::kDecodeBounds_Mode) { 332 return NULL; 333 } 334 335 jbyteArray ninePatchChunk = NULL; 336 if (peeker.mPatch != NULL) { 337 if (willScale) { 338 scaleNinePatchChunk(peeker.mPatch, scale, scaledWidth, scaledHeight); 339 } 340 341 size_t ninePatchArraySize = peeker.mPatch->serializedSize(); 342 ninePatchChunk = env->NewByteArray(ninePatchArraySize); 343 if (ninePatchChunk == NULL) { 344 return nullObjectReturn("ninePatchChunk == null"); 345 } 346 347 jbyte* array = (jbyte*) env->GetPrimitiveArrayCritical(ninePatchChunk, NULL); 348 if (array == NULL) { 349 return nullObjectReturn("primitive array == null"); 350 } 351 352 memcpy(array, peeker.mPatch, peeker.mPatchSize); 353 env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0); 354 } 355 356 jobject ninePatchInsets = NULL; 357 if (peeker.mHasInsets) { 358 ninePatchInsets = env->NewObject(gInsetStruct_class, gInsetStruct_constructorMethodID, 359 peeker.mOpticalInsets[0], peeker.mOpticalInsets[1], peeker.mOpticalInsets[2], peeker.mOpticalInsets[3], 360 peeker.mOutlineInsets[0], peeker.mOutlineInsets[1], peeker.mOutlineInsets[2], peeker.mOutlineInsets[3], 361 peeker.mOutlineRadius, peeker.mOutlineAlpha, scale); 362 if (ninePatchInsets == NULL) { 363 return nullObjectReturn("nine patch insets == null"); 364 } 365 if (javaBitmap != NULL) { 366 env->SetObjectField(javaBitmap, gBitmap_ninePatchInsetsFieldID, ninePatchInsets); 367 } 368 } 369 370 SkBitmap outputBitmap; 371 if (willScale) { 372 // This is weird so let me explain: we could use the scale parameter 373 // directly, but for historical reasons this is how the corresponding 374 // Dalvik code has always behaved. We simply recreate the behavior here. 375 // The result is slightly different from simply using scale because of 376 // the 0.5f rounding bias applied when computing the target image size 377 const float sx = scaledWidth / float(decodingBitmap.width()); 378 const float sy = scaledHeight / float(decodingBitmap.height()); 379 380 // TODO: avoid copying when scaled size equals decodingBitmap size 381 SkColorType colorType = colorTypeForScaledOutput(decodingBitmap.colorType()); 382 // FIXME: If the alphaType is kUnpremul and the image has alpha, the 383 // colors may not be correct, since Skia does not yet support drawing 384 // to/from unpremultiplied bitmaps. 385 outputBitmap.setInfo(SkImageInfo::Make(scaledWidth, scaledHeight, 386 colorType, decodingBitmap.alphaType())); 387 if (!outputBitmap.tryAllocPixels(outputAllocator, NULL)) { 388 return nullObjectReturn("allocation failed for scaled bitmap"); 389 } 390 391 // If outputBitmap's pixels are newly allocated by Java, there is no need 392 // to erase to 0, since the pixels were initialized to 0. 393 if (outputAllocator != &javaAllocator) { 394 outputBitmap.eraseColor(0); 395 } 396 397 SkPaint paint; 398 paint.setFilterQuality(kLow_SkFilterQuality); 399 400 SkCanvas canvas(outputBitmap); 401 canvas.scale(sx, sy); 402 canvas.drawARGB(0x00, 0x00, 0x00, 0x00); 403 canvas.drawBitmap(decodingBitmap, 0.0f, 0.0f, &paint); 404 } else { 405 outputBitmap.swap(decodingBitmap); 406 } 407 408 if (padding) { 409 if (peeker.mPatch != NULL) { 410 GraphicsJNI::set_jrect(env, padding, 411 peeker.mPatch->paddingLeft, peeker.mPatch->paddingTop, 412 peeker.mPatch->paddingRight, peeker.mPatch->paddingBottom); 413 } else { 414 GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1); 415 } 416 } 417 418 // if we get here, we're in kDecodePixels_Mode and will therefore 419 // already have a pixelref installed. 420 if (outputBitmap.pixelRef() == NULL) { 421 return nullObjectReturn("Got null SkPixelRef"); 422 } 423 424 if (!isMutable && javaBitmap == NULL) { 425 // promise we will never change our pixels (great for sharing and pictures) 426 outputBitmap.setImmutable(); 427 } 428 429 if (javaBitmap != NULL) { 430 bool isPremultiplied = !requireUnpremultiplied; 431 GraphicsJNI::reinitBitmap(env, javaBitmap, outputBitmap.info(), isPremultiplied); 432 outputBitmap.notifyPixelsChanged(); 433 // If a java bitmap was passed in for reuse, pass it back 434 return javaBitmap; 435 } 436 437 int bitmapCreateFlags = 0x0; 438 if (isMutable) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Mutable; 439 if (!requireUnpremultiplied) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Premultiplied; 440 441 // now create the java bitmap 442 return GraphicsJNI::createBitmap(env, javaAllocator.getStorageObjAndReset(), 443 bitmapCreateFlags, ninePatchChunk, ninePatchInsets, -1); 444} 445 446// Need to buffer enough input to be able to rewind as much as might be read by a decoder 447// trying to determine the stream's format. Currently the most is 64, read by 448// SkImageDecoder_libwebp. 449// FIXME: Get this number from SkImageDecoder 450#define BYTES_TO_BUFFER 64 451 452static jobject nativeDecodeStream(JNIEnv* env, jobject clazz, jobject is, jbyteArray storage, 453 jobject padding, jobject options) { 454 455 jobject bitmap = NULL; 456 SkAutoTDelete<SkStream> stream(CreateJavaInputStreamAdaptor(env, is, storage)); 457 458 if (stream.get()) { 459 SkAutoTDelete<SkStreamRewindable> bufferedStream( 460 SkFrontBufferedStream::Create(stream.detach(), BYTES_TO_BUFFER)); 461 SkASSERT(bufferedStream.get() != NULL); 462 bitmap = doDecode(env, bufferedStream, padding, options); 463 } 464 return bitmap; 465} 466 467static jobject nativeDecodeFileDescriptor(JNIEnv* env, jobject clazz, jobject fileDescriptor, 468 jobject padding, jobject bitmapFactoryOptions) { 469 470 NPE_CHECK_RETURN_ZERO(env, fileDescriptor); 471 472 int descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor); 473 474 struct stat fdStat; 475 if (fstat(descriptor, &fdStat) == -1) { 476 doThrowIOE(env, "broken file descriptor"); 477 return nullObjectReturn("fstat return -1"); 478 } 479 480 // Restore the descriptor's offset on exiting this function. Even though 481 // we dup the descriptor, both the original and dup refer to the same open 482 // file description and changes to the file offset in one impact the other. 483 AutoFDSeek autoRestore(descriptor); 484 485 // Duplicate the descriptor here to prevent leaking memory. A leak occurs 486 // if we only close the file descriptor and not the file object it is used to 487 // create. If we don't explicitly clean up the file (which in turn closes the 488 // descriptor) the buffers allocated internally by fseek will be leaked. 489 int dupDescriptor = dup(descriptor); 490 491 FILE* file = fdopen(dupDescriptor, "r"); 492 if (file == NULL) { 493 // cleanup the duplicated descriptor since it will not be closed when the 494 // file is cleaned up (fclose). 495 close(dupDescriptor); 496 return nullObjectReturn("Could not open file"); 497 } 498 499 SkAutoTDelete<SkFILEStream> fileStream(new SkFILEStream(file, 500 SkFILEStream::kCallerPasses_Ownership)); 501 502 // Use a buffered stream. Although an SkFILEStream can be rewound, this 503 // ensures that SkImageDecoder::Factory never rewinds beyond the 504 // current position of the file descriptor. 505 SkAutoTDelete<SkStreamRewindable> stream(SkFrontBufferedStream::Create(fileStream.detach(), 506 BYTES_TO_BUFFER)); 507 508 return doDecode(env, stream, padding, bitmapFactoryOptions); 509} 510 511static jobject nativeDecodeAsset(JNIEnv* env, jobject clazz, jlong native_asset, 512 jobject padding, jobject options) { 513 514 Asset* asset = reinterpret_cast<Asset*>(native_asset); 515 // since we know we'll be done with the asset when we return, we can 516 // just use a simple wrapper 517 SkAutoTDelete<SkStreamRewindable> stream(new AssetStreamAdaptor(asset)); 518 return doDecode(env, stream, padding, options); 519} 520 521static jobject nativeDecodeByteArray(JNIEnv* env, jobject, jbyteArray byteArray, 522 jint offset, jint length, jobject options) { 523 524 AutoJavaByteArray ar(env, byteArray); 525 SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(ar.ptr() + offset, length, false)); 526 return doDecode(env, stream, NULL, options); 527} 528 529static void nativeRequestCancel(JNIEnv*, jobject joptions) { 530 (void)AutoDecoderCancel::RequestCancel(joptions); 531} 532 533static jboolean nativeIsSeekable(JNIEnv* env, jobject, jobject fileDescriptor) { 534 jint descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor); 535 return ::lseek64(descriptor, 0, SEEK_CUR) != -1 ? JNI_TRUE : JNI_FALSE; 536} 537 538jobject decodeBitmap(JNIEnv* env, void* data, size_t size) { 539 SkMemoryStream stream(data, size); 540 return doDecode(env, &stream, NULL, NULL); 541} 542 543/////////////////////////////////////////////////////////////////////////////// 544 545static JNINativeMethod gMethods[] = { 546 { "nativeDecodeStream", 547 "(Ljava/io/InputStream;[BLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", 548 (void*)nativeDecodeStream 549 }, 550 551 { "nativeDecodeFileDescriptor", 552 "(Ljava/io/FileDescriptor;Landroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", 553 (void*)nativeDecodeFileDescriptor 554 }, 555 556 { "nativeDecodeAsset", 557 "(JLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", 558 (void*)nativeDecodeAsset 559 }, 560 561 { "nativeDecodeByteArray", 562 "([BIILandroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", 563 (void*)nativeDecodeByteArray 564 }, 565 566 { "nativeIsSeekable", 567 "(Ljava/io/FileDescriptor;)Z", 568 (void*)nativeIsSeekable 569 }, 570}; 571 572static JNINativeMethod gOptionsMethods[] = { 573 { "requestCancel", "()V", (void*)nativeRequestCancel } 574}; 575 576int register_android_graphics_BitmapFactory(JNIEnv* env) { 577 jclass options_class = FindClassOrDie(env, "android/graphics/BitmapFactory$Options"); 578 gOptions_bitmapFieldID = GetFieldIDOrDie(env, options_class, "inBitmap", 579 "Landroid/graphics/Bitmap;"); 580 gOptions_justBoundsFieldID = GetFieldIDOrDie(env, options_class, "inJustDecodeBounds", "Z"); 581 gOptions_sampleSizeFieldID = GetFieldIDOrDie(env, options_class, "inSampleSize", "I"); 582 gOptions_configFieldID = GetFieldIDOrDie(env, options_class, "inPreferredConfig", 583 "Landroid/graphics/Bitmap$Config;"); 584 gOptions_premultipliedFieldID = GetFieldIDOrDie(env, options_class, "inPremultiplied", "Z"); 585 gOptions_mutableFieldID = GetFieldIDOrDie(env, options_class, "inMutable", "Z"); 586 gOptions_ditherFieldID = GetFieldIDOrDie(env, options_class, "inDither", "Z"); 587 gOptions_preferQualityOverSpeedFieldID = GetFieldIDOrDie(env, options_class, 588 "inPreferQualityOverSpeed", "Z"); 589 gOptions_scaledFieldID = GetFieldIDOrDie(env, options_class, "inScaled", "Z"); 590 gOptions_densityFieldID = GetFieldIDOrDie(env, options_class, "inDensity", "I"); 591 gOptions_screenDensityFieldID = GetFieldIDOrDie(env, options_class, "inScreenDensity", "I"); 592 gOptions_targetDensityFieldID = GetFieldIDOrDie(env, options_class, "inTargetDensity", "I"); 593 gOptions_widthFieldID = GetFieldIDOrDie(env, options_class, "outWidth", "I"); 594 gOptions_heightFieldID = GetFieldIDOrDie(env, options_class, "outHeight", "I"); 595 gOptions_mimeFieldID = GetFieldIDOrDie(env, options_class, "outMimeType", "Ljava/lang/String;"); 596 gOptions_mCancelID = GetFieldIDOrDie(env, options_class, "mCancel", "Z"); 597 598 jclass bitmap_class = FindClassOrDie(env, "android/graphics/Bitmap"); 599 gBitmap_ninePatchInsetsFieldID = GetFieldIDOrDie(env, bitmap_class, "mNinePatchInsets", 600 "Landroid/graphics/NinePatch$InsetStruct;"); 601 602 gInsetStruct_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, 603 "android/graphics/NinePatch$InsetStruct")); 604 gInsetStruct_constructorMethodID = GetMethodIDOrDie(env, gInsetStruct_class, "<init>", 605 "(IIIIIIIIFIF)V"); 606 607 android::RegisterMethodsOrDie(env, "android/graphics/BitmapFactory$Options", 608 gOptionsMethods, NELEM(gOptionsMethods)); 609 return android::RegisterMethodsOrDie(env, "android/graphics/BitmapFactory", 610 gMethods, NELEM(gMethods)); 611} 612