| #define LOG_TAG "BitmapFactory" |
| |
| #include "BitmapFactory.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 <android_runtime/AndroidRuntime.h> |
| #include <utils/Asset.h> |
| #include <utils/ResourceTypes.h> |
| #include <netinet/in.h> |
| #include <sys/mman.h> |
| |
| jclass gOptions_class; |
| jfieldID gOptions_justBoundsFieldID; |
| jfieldID gOptions_sampleSizeFieldID; |
| jfieldID gOptions_configFieldID; |
| jfieldID gOptions_ditherFieldID; |
| jfieldID gOptions_purgeableFieldID; |
| jfieldID gOptions_shareableFieldID; |
| jfieldID gOptions_nativeAllocFieldID; |
| jfieldID gOptions_widthFieldID; |
| jfieldID gOptions_heightFieldID; |
| jfieldID gOptions_mimeFieldID; |
| jfieldID gOptions_mCancelID; |
| |
| static jclass gFileDescriptor_class; |
| static jfieldID gFileDescriptor_descriptor; |
| |
| #if 0 |
| #define TRACE_BITMAP(code) code |
| #else |
| #define TRACE_BITMAP(code) |
| #endif |
| |
| using namespace android; |
| |
| class NinePatchPeeker : public SkImageDecoder::Peeker { |
| SkImageDecoder* fHost; |
| public: |
| NinePatchPeeker(SkImageDecoder* host) { |
| // the host lives longer than we do, so a raw ptr is safe |
| fHost = host; |
| fPatchIsValid = false; |
| } |
| |
| ~NinePatchPeeker() { |
| if (fPatchIsValid) { |
| free(fPatch); |
| } |
| } |
| |
| bool fPatchIsValid; |
| Res_png_9patch* fPatch; |
| |
| virtual bool peek(const char tag[], const void* data, size_t length) { |
| if (strcmp("npTc", tag) == 0 && length >= sizeof(Res_png_9patch)) { |
| Res_png_9patch* patch = (Res_png_9patch*) data; |
| size_t patchSize = patch->serializedSize(); |
| assert(length == patchSize); |
| // You have to copy the data because it is owned by the png reader |
| Res_png_9patch* patchNew = (Res_png_9patch*) malloc(patchSize); |
| memcpy(patchNew, patch, patchSize); |
| // this relies on deserialization being done in place |
| Res_png_9patch::deserialize(patchNew); |
| patchNew->fileToDevice(); |
| if (fPatchIsValid) { |
| free(fPatch); |
| } |
| fPatch = patchNew; |
| //printf("9patch: (%d,%d)-(%d,%d)\n", |
| // fPatch.sizeLeft, fPatch.sizeTop, |
| // fPatch.sizeRight, fPatch.sizeBottom); |
| fPatchIsValid = true; |
| |
| // now update our host to force index or 32bit config |
| // 'cause we don't want 565 predithered, since as a 9patch, we know |
| // we will be stretched, and therefore we want to dither afterwards. |
| static const SkBitmap::Config gNo565Pref[] = { |
| SkBitmap::kIndex8_Config, |
| SkBitmap::kIndex8_Config, |
| SkBitmap::kARGB_8888_Config, |
| SkBitmap::kARGB_8888_Config, |
| SkBitmap::kARGB_8888_Config, |
| SkBitmap::kARGB_8888_Config, |
| }; |
| fHost->setPrefConfigTable(gNo565Pref); |
| } else { |
| fPatch = NULL; |
| } |
| return true; // keep on decoding |
| } |
| }; |
| |
| class AssetStreamAdaptor : public SkStream { |
| public: |
| AssetStreamAdaptor(Asset* a) : fAsset(a) {} |
| |
| virtual bool rewind() { |
| off_t pos = fAsset->seek(0, SEEK_SET); |
| if (pos == (off_t)-1) { |
| SkDebugf("----- fAsset->seek(rewind) failed\n"); |
| return false; |
| } |
| return true; |
| } |
| |
| virtual size_t read(void* buffer, size_t size) { |
| ssize_t amount; |
| |
| if (NULL == buffer) { |
| if (0 == size) { // caller is asking us for our total length |
| return fAsset->getLength(); |
| } |
| // asset->seek returns new total offset |
| // we want to return amount that was skipped |
| |
| off_t oldOffset = fAsset->seek(0, SEEK_CUR); |
| if (-1 == oldOffset) { |
| SkDebugf("---- fAsset->seek(oldOffset) failed\n"); |
| return 0; |
| } |
| off_t newOffset = fAsset->seek(size, SEEK_CUR); |
| if (-1 == newOffset) { |
| SkDebugf("---- fAsset->seek(%d) failed\n", size); |
| return 0; |
| } |
| amount = newOffset - oldOffset; |
| } else { |
| amount = fAsset->read(buffer, size); |
| if (amount <= 0) { |
| SkDebugf("---- fAsset->read(%d) returned %d\n", size, amount); |
| } |
| } |
| |
| if (amount < 0) { |
| amount = 0; |
| } |
| return amount; |
| } |
| |
| private: |
| Asset* fAsset; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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 optionsReportSizeToVM(JNIEnv* env, jobject options) { |
| return NULL == options || |
| !env->GetBooleanField(options, gOptions_nativeAllocFieldID); |
| } |
| |
| static jobject nullObjectReturn(const char msg[]) { |
| if (msg) { |
| SkDebugf("--- %s\n", msg); |
| } |
| return NULL; |
| } |
| |
| 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(); |
| 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) { |
| int sampleSize = 1; |
| SkImageDecoder::Mode mode = SkImageDecoder::kDecodePixels_Mode; |
| SkBitmap::Config prefConfig = SkBitmap::kNo_Config; |
| bool doDither = true; |
| bool isPurgeable = forcePurgeable || |
| (allowPurgeable && optionsPurgeable(env, options)); |
| bool reportSizeToVM = optionsReportSizeToVM(env, options); |
| |
| if (NULL != options) { |
| sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID); |
| if (env->GetBooleanField(options, gOptions_justBoundsFieldID)) { |
| 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); |
| doDither = env->GetBooleanField(options, gOptions_ditherFieldID); |
| } |
| |
| SkImageDecoder* decoder = SkImageDecoder::Factory(stream); |
| if (NULL == decoder) { |
| return nullObjectReturn("SkImageDecoder::Factory returned null"); |
| } |
| |
| decoder->setSampleSize(sampleSize); |
| decoder->setDitherImage(doDither); |
| |
| NinePatchPeeker peeker(decoder); |
| JavaPixelAllocator javaAllocator(env, reportSizeToVM); |
| SkBitmap* bitmap = new SkBitmap; |
| Res_png_9patch dummy9Patch; |
| |
| SkAutoTDelete<SkImageDecoder> add(decoder); |
| SkAutoTDelete<SkBitmap> adb(bitmap); |
| |
| 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 (NULL != options && env->GetBooleanField(options, gOptions_mCancelID)) { |
| return nullObjectReturn("gOptions_mCancelID");; |
| } |
| |
| SkImageDecoder::Mode decodeMode = mode; |
| if (isPurgeable) { |
| decodeMode = SkImageDecoder::kDecodeBounds_Mode; |
| } |
| if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) { |
| return nullObjectReturn("decoder->decode returned false"); |
| } |
| |
| // update options (if any) |
| if (NULL != options) { |
| env->SetIntField(options, gOptions_widthFieldID, bitmap->width()); |
| env->SetIntField(options, gOptions_heightFieldID, bitmap->height()); |
| // TODO: set the mimeType field with the data from the codec. |
| // but how to reuse a set of strings, rather than allocating new one |
| // each time? |
| env->SetObjectField(options, gOptions_mimeFieldID, |
| getMimeTypeString(env, decoder->getFormat())); |
| } |
| |
| // if we're in justBounds mode, return now (skip the java bitmap) |
| if (SkImageDecoder::kDecodeBounds_Mode == mode) { |
| return NULL; |
| } |
| |
| jbyteArray ninePatchChunk = NULL; |
| if (peeker.fPatchIsValid) { |
| size_t ninePatchArraySize = peeker.fPatch->serializedSize(); |
| ninePatchChunk = env->NewByteArray(ninePatchArraySize); |
| if (NULL == ninePatchChunk) { |
| return nullObjectReturn("ninePatchChunk == null"); |
| } |
| jbyte* array = (jbyte*)env->GetPrimitiveArrayCritical(ninePatchChunk, |
| NULL); |
| if (NULL == array) { |
| return nullObjectReturn("primitive array == null"); |
| } |
| peeker.fPatch->serialize(array); |
| env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0); |
| } |
| |
| // detach bitmap from its autotdeleter, since we want to own it now |
| adb.detach(); |
| |
| if (padding) { |
| if (peeker.fPatchIsValid) { |
| 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(); |
| } |
| // promise we will never change our pixels (great for sharing and pictures) |
| pr->setImmutable(); |
| // now create the java bitmap |
| return GraphicsJNI::createBitmap(env, bitmap, false, ninePatchChunk); |
| } |
| |
| static jobject nativeDecodeStream(JNIEnv* env, jobject clazz, |
| jobject is, // InputStream |
| jbyteArray storage, // byte[] |
| jobject padding, |
| jobject options) { // BitmapFactory$Options |
| 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); |
| stream->unref(); |
| } |
| return bitmap; |
| } |
| |
| static ssize_t getFDSize(int fd) { |
| off_t curr = ::lseek(fd, 0, SEEK_CUR); |
| if (curr < 0) { |
| return 0; |
| } |
| size_t size = ::lseek(fd, 0, SEEK_END); |
| ::lseek(fd, curr, SEEK_SET); |
| return size; |
| } |
| |
| /** Restore the file descriptor's offset in our destructor |
| */ |
| class AutoFDSeek { |
| public: |
| AutoFDSeek(int fd) : fFD(fd) { |
| fCurr = ::lseek(fd, 0, SEEK_CUR); |
| } |
| ~AutoFDSeek() { |
| if (fCurr >= 0) { |
| ::lseek(fFD, fCurr, SEEK_SET); |
| } |
| } |
| private: |
| int fFD; |
| off_t fCurr; |
| }; |
| |
| static jobject nativeDecodeFileDescriptor(JNIEnv* env, jobject clazz, |
| jobject fileDescriptor, |
| jobject padding, |
| jobject bitmapFactoryOptions) { |
| NPE_CHECK_RETURN_ZERO(env, fileDescriptor); |
| |
| jint descriptor = env->GetIntField(fileDescriptor, |
| gFileDescriptor_descriptor); |
| |
| 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 |
| off_t size = asset->seek(0, SEEK_SET); |
| if ((off_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()); |
| off_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 nativeDecodeAsset(JNIEnv* env, jobject clazz, |
| jint native_asset, // Asset |
| jobject padding, // Rect |
| jobject options) { // BitmapFactory$Options |
| SkStream* stream; |
| Asset* asset = reinterpret_cast<Asset*>(native_asset); |
| // assets can always be rebuilt, so force this |
| bool forcePurgeable = true; |
| |
| if (forcePurgeable || optionsPurgeable(env, options)) { |
| // 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 (NULL == stream) { |
| 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); |
| } |
| |
| 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(). |
| */ |
| AutoJavaByteArray ar(env, byteArray); |
| SkStream* stream = new SkMemoryStream(ar.ptr() + offset, length, |
| optionsPurgeable(env, options)); |
| SkAutoUnref aur(stream); |
| return doDecode(env, stream, NULL, options, true); |
| } |
| |
| static void nativeRequestCancel(JNIEnv*, jobject joptions) { |
| (void)AutoDecoderCancel::RequestCancel(joptions); |
| } |
| |
| 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); |
| |
| 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]++; |
| } |
| } |
| |
| 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 void nativeSetDefaultConfig(JNIEnv* env, jobject, int nativeConfig) { |
| SkBitmap::Config config = static_cast<SkBitmap::Config>(nativeConfig); |
| |
| // these are the only default configs that make sense for codecs right now |
| static const SkBitmap::Config gValidDefConfig[] = { |
| SkBitmap::kRGB_565_Config, |
| SkBitmap::kARGB_8888_Config, |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gValidDefConfig); i++) { |
| if (config == gValidDefConfig[i]) { |
| SkImageDecoder::SetDeviceConfig(config); |
| break; |
| } |
| } |
| } |
| |
| static jobject doBuildTileIndex(JNIEnv* env, SkStream* stream, bool isShareable) { |
| SkImageDecoder* decoder = SkImageDecoder::Factory(stream); |
| int width, height; |
| if (NULL == decoder) { |
| doThrowIOE(env, "Image format not supported"); |
| return nullObjectReturn("SkImageDecoder::Factory returned null"); |
| } |
| |
| JavaPixelAllocator *javaAllocator = new JavaPixelAllocator(env, true); |
| decoder->setAllocator(javaAllocator); |
| JavaMemoryUsageReporter *javaMemoryReporter = new JavaMemoryUsageReporter(env); |
| decoder->setReporter(javaMemoryReporter); |
| javaAllocator->unref(); |
| javaMemoryReporter->unref(); |
| |
| if (!decoder->buildTileIndex(stream, &width, &height, isShareable)) { |
| char msg[1024]; |
| snprintf(msg, 1023, "Image failed to decode using %s decoder", decoder->getFormatName()); |
| doThrowIOE(env, msg); |
| return nullObjectReturn("decoder->buildTileIndex returned false"); |
| } |
| |
| SkLargeBitmap *bm = new SkLargeBitmap(decoder, width, height); |
| |
| return GraphicsJNI::createLargeBitmap(env, bm); |
| } |
| |
| static jobject nativeCreateLargeBitmapFromByteArray(JNIEnv* env, jobject, jbyteArray byteArray, |
| int offset, int length, jboolean isShareable) { |
| AutoJavaByteArray ar(env, byteArray); |
| SkStream* stream = new SkMemoryStream(ar.ptr() + offset, length, false); |
| SkAutoUnref aur(stream); |
| if (isShareable) { |
| aur.detach(); |
| } |
| return doBuildTileIndex(env, stream, isShareable); |
| } |
| |
| static jobject nativeCreateLargeBitmapFromFileDescriptor(JNIEnv* env, jobject clazz, |
| jobject fileDescriptor, jboolean isShareable) { |
| NPE_CHECK_RETURN_ZERO(env, fileDescriptor); |
| |
| jint descriptor = env->GetIntField(fileDescriptor, |
| gFileDescriptor_descriptor); |
| bool weOwnTheFD = false; |
| |
| if (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; |
| } |
| |
| if (isShareable) { |
| aur.detach(); |
| } |
| |
| /* 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); |
| |
| return doBuildTileIndex(env, stream, isShareable); |
| } |
| |
| static jobject nativeCreateLargeBitmapFromStream(JNIEnv* env, jobject clazz, |
| jobject is, // InputStream |
| jbyteArray storage, // byte[] |
| jboolean isShareable) { |
| jobject largeBitmap = NULL; |
| SkStream* stream = CreateJavaInputStreamAdaptor(env, is, storage, 1024); |
| |
| if (stream) { |
| // for now we don't allow shareable with java inputstreams |
| largeBitmap = doBuildTileIndex(env, stream, false); |
| stream->unref(); |
| } |
| return largeBitmap; |
| } |
| |
| static jobject nativeCreateLargeBitmapFromAsset(JNIEnv* env, jobject clazz, |
| jint native_asset, // Asset |
| jboolean isShareable) { |
| SkStream* stream; |
| Asset* asset = reinterpret_cast<Asset*>(native_asset); |
| stream = new AssetStreamAdaptor(asset); |
| SkAutoUnref aur(stream); |
| if (isShareable) { |
| aur.detach(); |
| } |
| return doBuildTileIndex(env, stream, isShareable); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static JNINativeMethod gMethods[] = { |
| { "nativeDecodeStream", |
| "(Ljava/io/InputStream;[BLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeStream |
| }, |
| |
| { "nativeDecodeFileDescriptor", |
| "(Ljava/io/FileDescriptor;Landroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeFileDescriptor |
| }, |
| |
| { "nativeDecodeAsset", |
| "(ILandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeAsset |
| }, |
| |
| { "nativeDecodeByteArray", |
| "([BIILandroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", |
| (void*)nativeDecodeByteArray |
| }, |
| |
| { "nativeScaleNinePatch", |
| "([BFLandroid/graphics/Rect;)[B", |
| (void*)nativeScaleNinePatch |
| }, |
| |
| { "nativeSetDefaultConfig", "(I)V", (void*)nativeSetDefaultConfig }, |
| |
| { "nativeCreateLargeBitmap", |
| "([BIIZ)Landroid/graphics/LargeBitmap;", |
| (void*)nativeCreateLargeBitmapFromByteArray |
| }, |
| |
| { "nativeCreateLargeBitmap", |
| "(Ljava/io/InputStream;[BZ)Landroid/graphics/LargeBitmap;", |
| (void*)nativeCreateLargeBitmapFromStream |
| }, |
| |
| { "nativeCreateLargeBitmap", |
| "(Ljava/io/FileDescriptor;Z)Landroid/graphics/LargeBitmap;", |
| (void*)nativeCreateLargeBitmapFromFileDescriptor |
| }, |
| |
| { "nativeCreateLargeBitmap", |
| "(IZ)Landroid/graphics/LargeBitmap;", |
| (void*)nativeCreateLargeBitmapFromAsset |
| }, |
| }; |
| |
| static JNINativeMethod gOptionsMethods[] = { |
| { "requestCancel", "()V", (void*)nativeRequestCancel } |
| }; |
| |
| static jclass make_globalref(JNIEnv* env, const char classname[]) { |
| jclass c = env->FindClass(classname); |
| SkASSERT(c); |
| return (jclass)env->NewGlobalRef(c); |
| } |
| |
| static jfieldID getFieldIDCheck(JNIEnv* env, jclass clazz, |
| const char fieldname[], const char type[]) { |
| jfieldID id = env->GetFieldID(clazz, fieldname, type); |
| SkASSERT(id); |
| return id; |
| } |
| |
| #define kClassPathName "android/graphics/BitmapFactory" |
| |
| #define RETURN_ERR_IF_NULL(value) \ |
| do { if (!(value)) { assert(0); return -1; } } while (false) |
| |
| int register_android_graphics_BitmapFactory(JNIEnv* env); |
| int register_android_graphics_BitmapFactory(JNIEnv* env) { |
| gOptions_class = make_globalref(env, "android/graphics/BitmapFactory$Options"); |
| gOptions_justBoundsFieldID = getFieldIDCheck(env, gOptions_class, "inJustDecodeBounds", "Z"); |
| gOptions_sampleSizeFieldID = getFieldIDCheck(env, gOptions_class, "inSampleSize", "I"); |
| gOptions_configFieldID = getFieldIDCheck(env, gOptions_class, "inPreferredConfig", |
| "Landroid/graphics/Bitmap$Config;"); |
| gOptions_ditherFieldID = getFieldIDCheck(env, gOptions_class, "inDither", "Z"); |
| gOptions_purgeableFieldID = getFieldIDCheck(env, gOptions_class, "inPurgeable", "Z"); |
| gOptions_shareableFieldID = getFieldIDCheck(env, gOptions_class, "inInputShareable", "Z"); |
| gOptions_nativeAllocFieldID = getFieldIDCheck(env, gOptions_class, "inNativeAlloc", "Z"); |
| gOptions_widthFieldID = getFieldIDCheck(env, gOptions_class, "outWidth", "I"); |
| gOptions_heightFieldID = getFieldIDCheck(env, gOptions_class, "outHeight", "I"); |
| gOptions_mimeFieldID = getFieldIDCheck(env, gOptions_class, "outMimeType", "Ljava/lang/String;"); |
| gOptions_mCancelID = getFieldIDCheck(env, gOptions_class, "mCancel", "Z"); |
| |
| gFileDescriptor_class = make_globalref(env, "java/io/FileDescriptor"); |
| gFileDescriptor_descriptor = getFieldIDCheck(env, gFileDescriptor_class, "descriptor", "I"); |
| |
| int ret = AndroidRuntime::registerNativeMethods(env, |
| "android/graphics/BitmapFactory$Options", |
| gOptionsMethods, |
| SK_ARRAY_COUNT(gOptionsMethods)); |
| if (ret) { |
| return ret; |
| } |
| return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, |
| gMethods, SK_ARRAY_COUNT(gMethods)); |
| } |
