| #define LOG_TAG "BitmapFactory" |
| |
| #include "BitmapFactory.h" |
| #include "NinePatchPeeker.h" |
| #include "SkImageDecoder.h" |
| #include "SkImageRef_ashmem.h" |
| #include "SkImageRef_GlobalPool.h" |
| #include "SkPixelRef.h" |
| #include "SkStream.h" |
| #include "SkTemplates.h" |
| #include "SkUtils.h" |
| #include "CreateJavaOutputStreamAdaptor.h" |
| #include "AutoDecodeCancel.h" |
| #include "Utils.h" |
| #include "JNIHelp.h" |
| |
| #include <android_runtime/AndroidRuntime.h> |
| #include <androidfw/Asset.h> |
| #include <androidfw/ResourceTypes.h> |
| #include <netinet/in.h> |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| |
| jfieldID gOptions_justBoundsFieldID; |
| jfieldID gOptions_sampleSizeFieldID; |
| jfieldID gOptions_configFieldID; |
| jfieldID gOptions_mutableFieldID; |
| jfieldID gOptions_ditherFieldID; |
| jfieldID gOptions_purgeableFieldID; |
| jfieldID gOptions_shareableFieldID; |
| jfieldID gOptions_preferQualityOverSpeedFieldID; |
| jfieldID gOptions_widthFieldID; |
| jfieldID gOptions_heightFieldID; |
| jfieldID gOptions_mimeFieldID; |
| jfieldID gOptions_mCancelID; |
| jfieldID gOptions_bitmapFieldID; |
| jfieldID gBitmap_nativeBitmapFieldID; |
| jfieldID gBitmap_layoutBoundsFieldID; |
| |
| #if 0 |
| #define TRACE_BITMAP(code) code |
| #else |
| #define TRACE_BITMAP(code) |
| #endif |
| |
| using namespace android; |
| |
| static inline int32_t validOrNeg1(bool isValid, int32_t value) { |
| // return isValid ? value : -1; |
| SkASSERT((int)isValid == 0 || (int)isValid == 1); |
| return ((int32_t)isValid - 1) | value; |
| } |
| |
| jstring getMimeTypeString(JNIEnv* env, SkImageDecoder::Format format) { |
| static const struct { |
| SkImageDecoder::Format fFormat; |
| const char* fMimeType; |
| } gMimeTypes[] = { |
| { SkImageDecoder::kBMP_Format, "image/bmp" }, |
| { SkImageDecoder::kGIF_Format, "image/gif" }, |
| { SkImageDecoder::kICO_Format, "image/x-ico" }, |
| { SkImageDecoder::kJPEG_Format, "image/jpeg" }, |
| { SkImageDecoder::kPNG_Format, "image/png" }, |
| { SkImageDecoder::kWBMP_Format, "image/vnd.wap.wbmp" } |
| }; |
| |
| const char* cstr = NULL; |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gMimeTypes); i++) { |
| if (gMimeTypes[i].fFormat == format) { |
| cstr = gMimeTypes[i].fMimeType; |
| break; |
| } |
| } |
| |
| jstring jstr = 0; |
| if (NULL != cstr) { |
| jstr = env->NewStringUTF(cstr); |
| } |
| return jstr; |
| } |
| |
| static bool optionsPurgeable(JNIEnv* env, jobject options) { |
| return options != NULL && env->GetBooleanField(options, gOptions_purgeableFieldID); |
| } |
| |
| static bool optionsShareable(JNIEnv* env, jobject options) { |
| return options != NULL && env->GetBooleanField(options, gOptions_shareableFieldID); |
| } |
| |
| static bool optionsJustBounds(JNIEnv* env, jobject options) { |
| return options != NULL && env->GetBooleanField(options, gOptions_justBoundsFieldID); |
| } |
| |
| static void scaleNinePatchChunk(android::Res_png_9patch* chunk, float scale) { |
| chunk->paddingLeft = int(chunk->paddingLeft * scale + 0.5f); |
| chunk->paddingTop = int(chunk->paddingTop * scale + 0.5f); |
| chunk->paddingRight = int(chunk->paddingRight * scale + 0.5f); |
| chunk->paddingBottom = int(chunk->paddingBottom * scale + 0.5f); |
| |
| for (int i = 0; i < chunk->numXDivs; i++) { |
| chunk->xDivs[i] = int(chunk->xDivs[i] * scale + 0.5f); |
| if (i > 0 && chunk->xDivs[i] == chunk->xDivs[i - 1]) { |
| chunk->xDivs[i]++; |
| } |
| } |
| |
| for (int i = 0; i < chunk->numYDivs; i++) { |
| chunk->yDivs[i] = int(chunk->yDivs[i] * scale + 0.5f); |
| if (i > 0 && chunk->yDivs[i] == chunk->yDivs[i - 1]) { |
| chunk->yDivs[i]++; |
| } |
| } |
| } |
| |
| static jbyteArray nativeScaleNinePatch(JNIEnv* env, jobject, jbyteArray chunkObject, jfloat scale, |
| jobject padding) { |
| |
| jbyte* array = env->GetByteArrayElements(chunkObject, 0); |
| if (array != NULL) { |
| size_t chunkSize = env->GetArrayLength(chunkObject); |
| void* storage = alloca(chunkSize); |
| android::Res_png_9patch* chunk = static_cast<android::Res_png_9patch*>(storage); |
| memcpy(chunk, array, chunkSize); |
| android::Res_png_9patch::deserialize(chunk); |
| |
| scaleNinePatchChunk(chunk, scale); |
| memcpy(array, chunk, chunkSize); |
| |
| if (padding) { |
| GraphicsJNI::set_jrect(env, padding, chunk->paddingLeft, chunk->paddingTop, |
| chunk->paddingRight, chunk->paddingBottom); |
| } |
| |
| env->ReleaseByteArrayElements(chunkObject, array, 0); |
| } |
| return chunkObject; |
| } |
| |
| static SkPixelRef* installPixelRef(SkBitmap* bitmap, SkStream* stream, |
| int sampleSize, bool ditherImage) { |
| |
| SkImageRef* pr; |
| // only use ashmem for large images, since mmaps come at a price |
| if (bitmap->getSize() >= 32 * 1024) { |
| pr = new SkImageRef_ashmem(stream, bitmap->config(), sampleSize); |
| } else { |
| pr = new SkImageRef_GlobalPool(stream, bitmap->config(), sampleSize); |
| } |
| pr->setDitherImage(ditherImage); |
| bitmap->setPixelRef(pr)->unref(); |
| pr->isOpaque(bitmap); |
| return pr; |
| } |
| |
| // since we "may" create a purgeable imageref, we require the stream be ref'able |
| // i.e. dynamically allocated, since its lifetime may exceed the current stack |
| // frame. |
| static jobject doDecode(JNIEnv* env, SkStream* stream, jobject padding, |
| jobject options, bool allowPurgeable, bool forcePurgeable = false, |
| bool applyScale = false, float scale = 1.0f) { |
| |
| int sampleSize = 1; |
| |
| SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode; |
| SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config; |
| |
| bool doDither = true; |
| bool isMutable = false; |
| bool willScale = applyScale && scale != 1.0f; |
| bool isPurgeable = !willScale && |
| (forcePurgeable || (allowPurgeable && optionsPurgeable(env, options))); |
| bool preferQualityOverSpeed = false; |
| |
| jobject javaBitmap = NULL; |
| |
| if (options != NULL) { |
| sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID); |
| if (optionsJustBounds(env, options)) { |
| mode = SkImageDecoder::kDecodeBounds_Mode; |
| } |
| |
| // initialize these, in case we fail later on |
| env->SetIntField(options, gOptions_widthFieldID, -1); |
| env->SetIntField(options, gOptions_heightFieldID, -1); |
| env->SetObjectField(options, gOptions_mimeFieldID, 0); |
| |
| jobject jconfig = env->GetObjectField(options, gOptions_configFieldID); |
| prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig); |
| isMutable = env->GetBooleanField(options, gOptions_mutableFieldID); |
| doDither = env->GetBooleanField(options, gOptions_ditherFieldID); |
| preferQualityOverSpeed = env->GetBooleanField(options, |
| gOptions_preferQualityOverSpeedFieldID); |
| javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID); |
| } |
| |
| if (willScale && javaBitmap != NULL) { |
| return nullObjectReturn("Cannot pre-scale a reused bitmap"); |
| } |
| |
| SkImageDecoder* decoder = SkImageDecoder::Factory(stream); |
| if (decoder == NULL) { |
| return nullObjectReturn("SkImageDecoder::Factory returned null"); |
| } |
| |
| decoder->setSampleSize(sampleSize); |
| decoder->setDitherImage(doDither); |
| decoder->setPreferQualityOverSpeed(preferQualityOverSpeed); |
| |
| NinePatchPeeker peeker(decoder); |
| JavaPixelAllocator javaAllocator(env); |
| |
| SkBitmap* bitmap; |
| bool useExistingBitmap = false; |
| if (javaBitmap == NULL) { |
| bitmap = new SkBitmap; |
| } else { |
| if (sampleSize != 1) { |
| return nullObjectReturn("SkImageDecoder: Cannot reuse bitmap with sampleSize != 1"); |
| } |
| |
| bitmap = (SkBitmap*) env->GetIntField(javaBitmap, gBitmap_nativeBitmapFieldID); |
| // only reuse the provided bitmap if it is immutable |
| if (!bitmap->isImmutable()) { |
| useExistingBitmap = true; |
| // config of supplied bitmap overrules config set in options |
| prefConfig = bitmap->getConfig(); |
| } else { |
| ALOGW("Unable to reuse an immutable bitmap as an image decoder target."); |
| bitmap = new SkBitmap; |
| } |
| } |
| |
| SkAutoTDelete<SkImageDecoder> add(decoder); |
| SkAutoTDelete<SkBitmap> adb(bitmap, !useExistingBitmap); |
| |
| decoder->setPeeker(&peeker); |
| if (!isPurgeable) { |
| decoder->setAllocator(&javaAllocator); |
| } |
| |
| AutoDecoderCancel adc(options, decoder); |
| |
| // To fix the race condition in case "requestCancelDecode" |
| // happens earlier than AutoDecoderCancel object is added |
| // to the gAutoDecoderCancelMutex linked list. |
| if (options != NULL && env->GetBooleanField(options, gOptions_mCancelID)) { |
| return nullObjectReturn("gOptions_mCancelID"); |
| } |
| |
| SkImageDecoder::Mode decodeMode = mode; |
| if (isPurgeable) { |
| decodeMode = SkImageDecoder::kDecodeBounds_Mode; |
| } |
| |
| SkBitmap* decoded; |
| if (willScale) { |
| decoded = new SkBitmap; |
| } else { |
| decoded = bitmap; |
| } |
| SkAutoTDelete<SkBitmap> adb2(willScale ? decoded : NULL); |
| |
| if (!decoder->decode(stream, decoded, prefConfig, decodeMode, javaBitmap != NULL)) { |
| return nullObjectReturn("decoder->decode returned false"); |
| } |
| |
| int scaledWidth = decoded->width(); |
| int scaledHeight = decoded->height(); |
| |
| if (willScale && mode != SkImageDecoder::kDecodeBounds_Mode) { |
| scaledWidth = int(scaledWidth * scale + 0.5f); |
| scaledHeight = int(scaledHeight * scale + 0.5f); |
| } |
| |
| // update options (if any) |
| if (options != NULL) { |
| env->SetIntField(options, gOptions_widthFieldID, scaledWidth); |
| env->SetIntField(options, gOptions_heightFieldID, scaledHeight); |
| env->SetObjectField(options, gOptions_mimeFieldID, |
| getMimeTypeString(env, decoder->getFormat())); |
| } |
| |
| // if we're in justBounds mode, return now (skip the java bitmap) |
| if (mode == SkImageDecoder::kDecodeBounds_Mode) { |
| return NULL; |
| } |
| |
| jbyteArray ninePatchChunk = NULL; |
| if (peeker.fPatch != NULL) { |
| if (willScale) { |
| scaleNinePatchChunk(peeker.fPatch, scale); |
| } |
| |
| size_t ninePatchArraySize = peeker.fPatch->serializedSize(); |
| ninePatchChunk = env->NewByteArray(ninePatchArraySize); |
| if (ninePatchChunk == NULL) { |
| return nullObjectReturn("ninePatchChunk == null"); |
| } |
| |
| jbyte* array = (jbyte*) env->GetPrimitiveArrayCritical(ninePatchChunk, NULL); |
| if (array == NULL) { |
| return nullObjectReturn("primitive array == null"); |
| } |
| |
| peeker.fPatch->serialize(array); |
| env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0); |
| } |
| |
| jintArray layoutBounds = NULL; |
| if (peeker.fLayoutBounds != NULL) { |
| layoutBounds = env->NewIntArray(4); |
| if (layoutBounds == NULL) { |
| return nullObjectReturn("layoutBounds == null"); |
| } |
| |
| jint scaledBounds[4]; |
| if (willScale) { |
| for (int i=0; i<4; i++) { |
| scaledBounds[i] = (jint)((((jint*)peeker.fLayoutBounds)[i]*scale) + .5f); |
| } |
| } else { |
| memcpy(scaledBounds, (jint*)peeker.fLayoutBounds, sizeof(scaledBounds)); |
| } |
| env->SetIntArrayRegion(layoutBounds, 0, 4, scaledBounds); |
| if (javaBitmap != NULL) { |
| env->SetObjectField(javaBitmap, gBitmap_layoutBoundsFieldID, layoutBounds); |
| } |
| } |
| |
| if (willScale) { |
| // This is weird so let me explain: we could use the scale parameter |
| // directly, but for historical reasons this is how the corresponding |
| // Dalvik code has always behaved. We simply recreate the behavior here. |
| // The result is slightly different from simply using scale because of |
| // the 0.5f rounding bias applied when computing the target image size |
| const float sx = scaledWidth / float(decoded->width()); |
| const float sy = scaledHeight / float(decoded->height()); |
| |
| SkBitmap::Config config = decoded->config(); |
| switch (config) { |
| case SkBitmap::kNo_Config: |
| case SkBitmap::kIndex8_Config: |
| case SkBitmap::kRLE_Index8_Config: |
| config = SkBitmap::kARGB_8888_Config; |
| break; |
| default: |
| break; |
| } |
| |
| bitmap->setConfig(config, scaledWidth, scaledHeight); |
| bitmap->setIsOpaque(decoded->isOpaque()); |
| if (!bitmap->allocPixels(&javaAllocator, NULL)) { |
| return nullObjectReturn("allocation failed for scaled bitmap"); |
| } |
| bitmap->eraseColor(0); |
| |
| SkPaint paint; |
| paint.setFilterBitmap(true); |
| |
| SkCanvas canvas(*bitmap); |
| canvas.scale(sx, sy); |
| canvas.drawBitmap(*decoded, 0.0f, 0.0f, &paint); |
| } |
| |
| if (padding) { |
| if (peeker.fPatch != NULL) { |
| GraphicsJNI::set_jrect(env, padding, |
| peeker.fPatch->paddingLeft, peeker.fPatch->paddingTop, |
| peeker.fPatch->paddingRight, peeker.fPatch->paddingBottom); |
| } else { |
| GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1); |
| } |
| } |
| |
| SkPixelRef* pr; |
| if (isPurgeable) { |
| pr = installPixelRef(bitmap, stream, sampleSize, doDither); |
| } else { |
| // if we get here, we're in kDecodePixels_Mode and will therefore |
| // already have a pixelref installed. |
| pr = bitmap->pixelRef(); |
| } |
| if (pr == NULL) { |
| return nullObjectReturn("Got null SkPixelRef"); |
| } |
| |
| if (!isMutable) { |
| // promise we will never change our pixels (great for sharing and pictures) |
| pr->setImmutable(); |
| } |
| |
| // detach bitmap from its autodeleter, since we want to own it now |
| adb.detach(); |
| |
| if (useExistingBitmap) { |
| // If a java bitmap was passed in for reuse, pass it back |
| return javaBitmap; |
| } |
| // now create the java bitmap |
| return GraphicsJNI::createBitmap(env, bitmap, javaAllocator.getStorageObj(), |
| isMutable, ninePatchChunk, layoutBounds, -1); |
| } |
| |
| static jobject nativeDecodeStreamScaled(JNIEnv* env, jobject clazz, jobject is, jbyteArray storage, |
| jobject padding, jobject options, jboolean applyScale, jfloat scale) { |
| |
| jobject bitmap = NULL; |
| SkStream* stream = CreateJavaInputStreamAdaptor(env, is, storage, 0); |
| |
| if (stream) { |
| // for now we don't allow purgeable with java inputstreams |
| bitmap = doDecode(env, stream, padding, options, false, false, applyScale, scale); |
| stream->unref(); |
| } |
| return bitmap; |
| } |
| |
| static jobject nativeDecodeStream(JNIEnv* env, jobject clazz, jobject is, jbyteArray storage, |
| jobject padding, jobject options) { |
| |
| return nativeDecodeStreamScaled(env, clazz, is, storage, padding, options, false, 1.0f); |
| } |
| |
| static ssize_t getFDSize(int fd) { |
| off64_t curr = ::lseek64(fd, 0, SEEK_CUR); |
| if (curr < 0) { |
| return 0; |
| } |
| size_t size = ::lseek(fd, 0, SEEK_END); |
| ::lseek64(fd, curr, SEEK_SET); |
| return size; |
| } |
| |
| static jobject nativeDecodeFileDescriptor(JNIEnv* env, jobject clazz, jobject fileDescriptor, |
| jobject padding, jobject bitmapFactoryOptions) { |
| |
| NPE_CHECK_RETURN_ZERO(env, fileDescriptor); |
| |
| jint descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor); |
| |
| bool isPurgeable = optionsPurgeable(env, bitmapFactoryOptions); |
| bool isShareable = optionsShareable(env, bitmapFactoryOptions); |
| bool weOwnTheFD = false; |
| if (isPurgeable && isShareable) { |
| int newFD = ::dup(descriptor); |
| if (-1 != newFD) { |
| weOwnTheFD = true; |
| descriptor = newFD; |
| } |
| } |
| |
| SkFDStream* stream = new SkFDStream(descriptor, weOwnTheFD); |
| SkAutoUnref aur(stream); |
| if (!stream->isValid()) { |
| return NULL; |
| } |
| |
| /* Restore our offset when we leave, so we can be called more than once |
| with the same descriptor. This is only required if we didn't dup the |
| file descriptor, but it is OK to do it all the time. |
| */ |
| AutoFDSeek as(descriptor); |
| |
| /* Allow purgeable iff we own the FD, i.e., in the puregeable and |
| shareable case. |
| */ |
| return doDecode(env, stream, padding, bitmapFactoryOptions, weOwnTheFD); |
| } |
| |
| /* make a deep copy of the asset, and return it as a stream, or NULL if there |
| was an error. |
| */ |
| static SkStream* copyAssetToStream(Asset* asset) { |
| // if we could "ref/reopen" the asset, we may not need to copy it here |
| off64_t size = asset->seek(0, SEEK_SET); |
| if ((off64_t)-1 == size) { |
| SkDebugf("---- copyAsset: asset rewind failed\n"); |
| return NULL; |
| } |
| |
| size = asset->getLength(); |
| if (size <= 0) { |
| SkDebugf("---- copyAsset: asset->getLength() returned %d\n", size); |
| return NULL; |
| } |
| |
| SkStream* stream = new SkMemoryStream(size); |
| void* data = const_cast<void*>(stream->getMemoryBase()); |
| off64_t len = asset->read(data, size); |
| if (len != size) { |
| SkDebugf("---- copyAsset: asset->read(%d) returned %d\n", size, len); |
| delete stream; |
| stream = NULL; |
| } |
| return stream; |
| } |
| |
| static jobject nativeDecodeAssetScaled(JNIEnv* env, jobject clazz, jint native_asset, |
| jobject padding, jobject options, jboolean applyScale, jfloat scale) { |
| |
| SkStream* stream; |
| Asset* asset = reinterpret_cast<Asset*>(native_asset); |
| bool forcePurgeable = optionsPurgeable(env, options); |
| if (forcePurgeable) { |
| // if we could "ref/reopen" the asset, we may not need to copy it here |
| // and we could assume optionsShareable, since assets are always RO |
| stream = copyAssetToStream(asset); |
| if (stream == NULL) { |
| return NULL; |
| } |
| } else { |
| // since we know we'll be done with the asset when we return, we can |
| // just use a simple wrapper |
| stream = new AssetStreamAdaptor(asset); |
| } |
| SkAutoUnref aur(stream); |
| return doDecode(env, stream, padding, options, true, forcePurgeable, applyScale, scale); |
| } |
| |
| static jobject nativeDecodeAsset(JNIEnv* env, jobject clazz, jint native_asset, |
| jobject padding, jobject options) { |
| |
| return nativeDecodeAssetScaled(env, clazz, native_asset, padding, options, false, 1.0f); |
| } |
| |
| static jobject nativeDecodeByteArray(JNIEnv* env, jobject, jbyteArray byteArray, |
| int offset, int length, jobject options) { |
| |
| /* If optionsShareable() we could decide to just wrap the java array and |
| share it, but that means adding a globalref to the java array object |
| and managing its lifetime. For now we just always copy the array's data |
| if optionsPurgeable(), unless we're just decoding bounds. |
| */ |
| bool purgeable = optionsPurgeable(env, options) && !optionsJustBounds(env, options); |
| AutoJavaByteArray ar(env, byteArray); |
| SkStream* stream = new SkMemoryStream(ar.ptr() + offset, length, purgeable); |
| SkAutoUnref aur(stream); |
| return doDecode(env, stream, NULL, options, purgeable); |
| } |
| |
| static void nativeRequestCancel(JNIEnv*, jobject joptions) { |
| (void)AutoDecoderCancel::RequestCancel(joptions); |
| } |
| |
| static jboolean nativeIsSeekable(JNIEnv* env, jobject, jobject fileDescriptor) { |
| jint descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor); |
| return ::lseek64(descriptor, 0, SEEK_CUR) != -1 ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static JNINativeMethod gMethods[] = { |
| { "nativeDecodeStream", |
| "(Ljava/io/InputStream;[BLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeStream |
| }, |
| { "nativeDecodeStream", |
| "(Ljava/io/InputStream;[BLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;ZF)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeStreamScaled |
| }, |
| |
| { "nativeDecodeFileDescriptor", |
| "(Ljava/io/FileDescriptor;Landroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeFileDescriptor |
| }, |
| |
| { "nativeDecodeAsset", |
| "(ILandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeAsset |
| }, |
| |
| { "nativeDecodeAsset", |
| "(ILandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;ZF)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeAssetScaled |
| }, |
| |
| { "nativeDecodeByteArray", |
| "([BIILandroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeByteArray |
| }, |
| |
| { "nativeScaleNinePatch", |
| "([BFLandroid/graphics/Rect;)[B", |
| (void*)nativeScaleNinePatch |
| }, |
| |
| { "nativeIsSeekable", |
| "(Ljava/io/FileDescriptor;)Z", |
| (void*)nativeIsSeekable |
| }, |
| }; |
| |
| static JNINativeMethod gOptionsMethods[] = { |
| { "requestCancel", "()V", (void*)nativeRequestCancel } |
| }; |
| |
| static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz, |
| const char fieldname[], const char type[]) { |
| jfieldID id = env->GetFieldID(clazz, fieldname, type); |
| SkASSERT(id); |
| return id; |
| } |
| |
| int register_android_graphics_BitmapFactory(JNIEnv* env) { |
| jclass options_class = env->FindClass("android/graphics/BitmapFactory$Options"); |
| SkASSERT(options_class); |
| gOptions_bitmapFieldID = getFieldIDCheck(env, options_class, "inBitmap", |
| "Landroid/graphics/Bitmap;"); |
| gOptions_justBoundsFieldID = getFieldIDCheck(env, options_class, "inJustDecodeBounds", "Z"); |
| gOptions_sampleSizeFieldID = getFieldIDCheck(env, options_class, "inSampleSize", "I"); |
| gOptions_configFieldID = getFieldIDCheck(env, options_class, "inPreferredConfig", |
| "Landroid/graphics/Bitmap$Config;"); |
| gOptions_mutableFieldID = getFieldIDCheck(env, options_class, "inMutable", "Z"); |
| gOptions_ditherFieldID = getFieldIDCheck(env, options_class, "inDither", "Z"); |
| gOptions_purgeableFieldID = getFieldIDCheck(env, options_class, "inPurgeable", "Z"); |
| gOptions_shareableFieldID = getFieldIDCheck(env, options_class, "inInputShareable", "Z"); |
| gOptions_preferQualityOverSpeedFieldID = getFieldIDCheck(env, options_class, |
| "inPreferQualityOverSpeed", "Z"); |
| gOptions_widthFieldID = getFieldIDCheck(env, options_class, "outWidth", "I"); |
| gOptions_heightFieldID = getFieldIDCheck(env, options_class, "outHeight", "I"); |
| gOptions_mimeFieldID = getFieldIDCheck(env, options_class, "outMimeType", "Ljava/lang/String;"); |
| gOptions_mCancelID = getFieldIDCheck(env, options_class, "mCancel", "Z"); |
| |
| jclass bitmap_class = env->FindClass("android/graphics/Bitmap"); |
| SkASSERT(bitmap_class); |
| gBitmap_nativeBitmapFieldID = getFieldIDCheck(env, bitmap_class, "mNativeBitmap", "I"); |
| gBitmap_layoutBoundsFieldID = getFieldIDCheck(env, bitmap_class, "mLayoutBounds", "[I"); |
| int ret = AndroidRuntime::registerNativeMethods(env, |
| "android/graphics/BitmapFactory$Options", |
| gOptionsMethods, |
| SK_ARRAY_COUNT(gOptionsMethods)); |
| if (ret) { |
| return ret; |
| } |
| return android::AndroidRuntime::registerNativeMethods(env, "android/graphics/BitmapFactory", |
| gMethods, SK_ARRAY_COUNT(gMethods)); |
| } |