#define LOG_TAG "BitmapFactory"
#include "BitmapFactory.h"
#include "CreateJavaOutputStreamAdaptor.h"
#include "GraphicsJNI.h"
#include "NinePatchPeeker.h"
#include "SkAndroidCodec.h"
#include "SkBRDAllocator.h"
#include "SkFrontBufferedStream.h"
#include "SkImageDecoder.h"
#include "SkMath.h"
#include "SkPixelRef.h"
#include "SkStream.h"
#include "SkUtils.h"
#include "Utils.h"
#include "core_jni_helpers.h"
#include <JNIHelp.h>
#include <androidfw/Asset.h>
#include <androidfw/ResourceTypes.h>
#include <cutils/compiler.h>
#include <memory>
#include <netinet/in.h>
#include <stdio.h>
#include <sys/mman.h>
#include <sys/stat.h>
jfieldID gOptions_justBoundsFieldID;
jfieldID gOptions_sampleSizeFieldID;
jfieldID gOptions_configFieldID;
jfieldID gOptions_premultipliedFieldID;
jfieldID gOptions_mutableFieldID;
jfieldID gOptions_ditherFieldID;
jfieldID gOptions_preferQualityOverSpeedFieldID;
jfieldID gOptions_scaledFieldID;
jfieldID gOptions_densityFieldID;
jfieldID gOptions_screenDensityFieldID;
jfieldID gOptions_targetDensityFieldID;
jfieldID gOptions_widthFieldID;
jfieldID gOptions_heightFieldID;
jfieldID gOptions_mimeFieldID;
jfieldID gOptions_mCancelID;
jfieldID gOptions_bitmapFieldID;
jfieldID gBitmap_ninePatchInsetsFieldID;
jclass gInsetStruct_class;
jmethodID gInsetStruct_constructorMethodID;
using namespace android;
jstring encodedFormatToString(JNIEnv* env, SkEncodedFormat format) {
const char* mimeType;
switch (format) {
case SkEncodedFormat::kBMP_SkEncodedFormat:
mimeType = "image/bmp";
break;
case SkEncodedFormat::kGIF_SkEncodedFormat:
mimeType = "image/gif";
break;
case SkEncodedFormat::kICO_SkEncodedFormat:
mimeType = "image/x-ico";
break;
case SkEncodedFormat::kJPEG_SkEncodedFormat:
mimeType = "image/jpeg";
break;
case SkEncodedFormat::kPNG_SkEncodedFormat:
mimeType = "image/png";
break;
case SkEncodedFormat::kWEBP_SkEncodedFormat:
mimeType = "image/webp";
break;
case SkEncodedFormat::kWBMP_SkEncodedFormat:
mimeType = "image/vnd.wap.wbmp";
break;
case SkEncodedFormat::kRAW_SkEncodedFormat:
mimeType = "image/x-adobe-dng";
break;
default:
mimeType = nullptr;
break;
}
jstring jstr = nullptr;
if (mimeType) {
// NOTE: Caller should env->ExceptionCheck() for OOM
// (can't check for nullptr as it's a valid return value)
jstr = env->NewStringUTF(mimeType);
}
return jstr;
}
static void scaleDivRange(int32_t* divs, int count, float scale, int maxValue) {
for (int i = 0; i < count; i++) {
divs[i] = int32_t(divs[i] * scale + 0.5f);
if (i > 0 && divs[i] == divs[i - 1]) {
divs[i]++; // avoid collisions
}
}
if (CC_UNLIKELY(divs[count - 1] > maxValue)) {
// if the collision avoidance above put some divs outside the bounds of the bitmap,
// slide outer stretchable divs inward to stay within bounds
int highestAvailable = maxValue;
for (int i = count - 1; i >= 0; i--) {
divs[i] = highestAvailable;
if (i > 0 && divs[i] <= divs[i-1]){
// keep shifting
highestAvailable = divs[i] - 1;
} else {
break;
}
}
}
}
static void scaleNinePatchChunk(android::Res_png_9patch* chunk, float scale,
int scaledWidth, int scaledHeight) {
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);
scaleDivRange(chunk->getXDivs(), chunk->numXDivs, scale, scaledWidth);
scaleDivRange(chunk->getYDivs(), chunk->numYDivs, scale, scaledHeight);
}
static SkColorType colorTypeForScaledOutput(SkColorType colorType) {
switch (colorType) {
case kUnknown_SkColorType:
case kIndex_8_SkColorType:
return kN32_SkColorType;
default:
break;
}
return colorType;
}
class ScaleCheckingAllocator : public SkBitmap::HeapAllocator {
public:
ScaleCheckingAllocator(float scale, int size)
: mScale(scale), mSize(size) {
}
virtual bool allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) {
// accounts for scale in final allocation, using eventual size and config
const int bytesPerPixel = SkColorTypeBytesPerPixel(
colorTypeForScaledOutput(bitmap->colorType()));
const int requestedSize = bytesPerPixel *
int(bitmap->width() * mScale + 0.5f) *
int(bitmap->height() * mScale + 0.5f);
if (requestedSize > mSize) {
ALOGW("bitmap for alloc reuse (%d bytes) can't fit scaled bitmap (%d bytes)",
mSize, requestedSize);
return false;
}
return SkBitmap::HeapAllocator::allocPixelRef(bitmap, ctable);
}
private:
const float mScale;
const int mSize;
};
class RecyclingPixelAllocator : public SkBitmap::Allocator {
public:
RecyclingPixelAllocator(android::Bitmap* bitmap, unsigned int size)
: mBitmap(bitmap), mSize(size) {
}
~RecyclingPixelAllocator() {
}
virtual bool allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) {
const SkImageInfo& info = bitmap->info();
if (info.colorType() == kUnknown_SkColorType) {
ALOGW("unable to reuse a bitmap as the target has an unknown bitmap configuration");
return false;
}
const int64_t size64 = info.getSafeSize64(bitmap->rowBytes());
if (!sk_64_isS32(size64)) {
ALOGW("bitmap is too large");
return false;
}
const size_t size = sk_64_asS32(size64);
if (size > mSize) {
ALOGW("bitmap marked for reuse (%u bytes) can't fit new bitmap "
"(%zu bytes)", mSize, size);
return false;
}
mBitmap->reconfigure(info, bitmap->rowBytes(), ctable);
bitmap->setPixelRef(mBitmap->refPixelRef())->unref();
// since we're already allocated, we lockPixels right away
// HeapAllocator/JavaPixelAllocator behaves this way too
bitmap->lockPixels();
return true;
}
private:
android::Bitmap* const mBitmap;
const unsigned int mSize;
};
// Necessary for decodes when the native decoder cannot scale to appropriately match the sampleSize
// (for example, RAW). If the sampleSize divides evenly into the dimension, we require that the
// scale matches exactly. If sampleSize does not divide evenly, we allow the decoder to choose how
// best to round.
static bool needsFineScale(const int fullSize, const int decodedSize, const int sampleSize) {
if (fullSize % sampleSize == 0 && fullSize / sampleSize != decodedSize) {
return true;
} else if ((fullSize / sampleSize + 1) != decodedSize &&
(fullSize / sampleSize) != decodedSize) {
return true;
}
return false;
}
static bool needsFineScale(const SkISize fullSize, const SkISize decodedSize,
const int sampleSize) {
return needsFineScale(fullSize.width(), decodedSize.width(), sampleSize) ||
needsFineScale(fullSize.height(), decodedSize.height(), sampleSize);
}
static jobject doDecode(JNIEnv* env, SkStreamRewindable* stream, jobject padding, jobject options) {
// This function takes ownership of the input stream. Since the SkAndroidCodec
// will take ownership of the stream, we don't necessarily need to take ownership
// here. This is a precaution - if we were to return before creating the codec,
// we need to make sure that we delete the stream.
std::unique_ptr<SkStreamRewindable> streamDeleter(stream);
// Set default values for the options parameters.
int sampleSize = 1;
bool onlyDecodeSize = false;
SkColorType prefColorType = kN32_SkColorType;
bool isMutable = false;
float scale = 1.0f;
bool requireUnpremultiplied = false;
jobject javaBitmap = NULL;
// Update with options supplied by the client.
if (options != NULL) {
sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID);
// Correct a non-positive sampleSize. sampleSize defaults to zero within the
// options object, which is strange.
if (sampleSize <= 0) {
sampleSize = 1;
}
if (env->GetBooleanField(options, gOptions_justBoundsFieldID)) {
onlyDecodeSize = true;
}
// 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);
prefColorType = GraphicsJNI::getNativeBitmapColorType(env, jconfig);
isMutable = env->GetBooleanField(options, gOptions_mutableFieldID);
requireUnpremultiplied = !env->GetBooleanField(options, gOptions_premultipliedFieldID);
javaBitmap = env->GetObjectField(options, gOptions_bitmapFieldID);
if (env->GetBooleanField(options, gOptions_scaledFieldID)) {
const int density = env->GetIntField(options, gOptions_densityFieldID);
const int targetDensity = env->GetIntField(options, gOptions_targetDensityFieldID);
const int screenDensity = env->GetIntField(options, gOptions_screenDensityFieldID);
if (density != 0 && targetDensity != 0 && density != screenDensity) {
scale = (float) targetDensity / density;
}
}
}
// Create the codec.
NinePatchPeeker peeker;
std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::NewFromStream(streamDeleter.release(),
&peeker));
if (!codec.get()) {
return nullObjectReturn("SkAndroidCodec::NewFromStream returned null");
}
// Do not allow ninepatch decodes to 565. In the past, decodes to 565
// would dither, and we do not want to pre-dither ninepatches, since we
// know that they will be stretched. We no longer dither 565 decodes,
// but we continue to prevent ninepatches from decoding to 565, in order
// to maintain the old behavior.
if (peeker.mPatch && kRGB_565_SkColorType == prefColorType) {
prefColorType = kN32_SkColorType;
}
// Determine the output size.
SkISize size = codec->getSampledDimensions(sampleSize);
int scaledWidth = size.width();
int scaledHeight = size.height();
bool willScale = false;
// Apply a fine scaling step if necessary.
if (needsFineScale(codec->getInfo().dimensions(), size, sampleSize)) {
willScale = true;
scaledWidth = codec->getInfo().width() / sampleSize;
scaledHeight = codec->getInfo().height() / sampleSize;
}
// Set the options and return if the client only wants the size.
if (options != NULL) {
jstring mimeType = encodedFormatToString(env, codec->getEncodedFormat());
if (env->ExceptionCheck()) {
return nullObjectReturn("OOM in encodedFormatToString()");
}
env->SetIntField(options, gOptions_widthFieldID, scaledWidth);
env->SetIntField(options, gOptions_heightFieldID, scaledHeight);
env->SetObjectField(options, gOptions_mimeFieldID, mimeType);
if (onlyDecodeSize) {
return nullptr;
}
}
// Scale is necessary due to density differences.
if (scale != 1.0f) {
willScale = true;
scaledWidth = static_cast<int>(scaledWidth * scale + 0.5f);
scaledHeight = static_cast<int>(scaledHeight * scale + 0.5f);
}
android::Bitmap* reuseBitmap = nullptr;
unsigned int existingBufferSize = 0;
if (javaBitmap != NULL) {
reuseBitmap = GraphicsJNI::getBitmap(env, javaBitmap);
if (reuseBitmap->peekAtPixelRef()->isImmutable()) {
ALOGW("Unable to reuse an immutable bitmap as an image decoder target.");
javaBitmap = NULL;
reuseBitmap = nullptr;
} else {
existingBufferSize = GraphicsJNI::getBitmapAllocationByteCount(env, javaBitmap);
}
}
JavaPixelAllocator javaAllocator(env);
RecyclingPixelAllocator recyclingAllocator(reuseBitmap, existingBufferSize);
ScaleCheckingAllocator scaleCheckingAllocator(scale, existingBufferSize);
SkBitmap::HeapAllocator heapAllocator;
SkBitmap::Allocator* decodeAllocator;
if (javaBitmap != nullptr && willScale) {
// This will allocate pixels using a HeapAllocator, since there will be an extra
// scaling step that copies these pixels into Java memory. This allocator
// also checks that the recycled javaBitmap is large enough.
decodeAllocator = &scaleCheckingAllocator;
} else if (javaBitmap != nullptr) {
decodeAllocator = &recyclingAllocator;
} else if (willScale) {
// This will allocate pixels using a HeapAllocator, since there will be an extra
// scaling step that copies these pixels into Java memory.
decodeAllocator = &heapAllocator;
} else {
decodeAllocator = &javaAllocator;
}
// Set the decode colorType. This is necessary because we can't always support
// the requested colorType.
SkColorType decodeColorType = codec->computeOutputColorType(prefColorType);
// Construct a color table for the decode if necessary
SkAutoTUnref<SkColorTable> colorTable(nullptr);
SkPMColor* colorPtr = nullptr;
int* colorCount = nullptr;
int maxColors = 256;
SkPMColor colors[256];
if (kIndex_8_SkColorType == decodeColorType) {
colorTable.reset(new SkColorTable(colors, maxColors));
// SkColorTable expects us to initialize all of the colors before creating an
// SkColorTable. However, we are using SkBitmap with an Allocator to allocate
// memory for the decode, so we need to create the SkColorTable before decoding.
// It is safe for SkAndroidCodec to modify the colors because this SkBitmap is
// not being used elsewhere.
colorPtr = const_cast<SkPMColor*>(colorTable->readColors());
colorCount = &maxColors;
}
// Set the alpha type for the decode.
SkAlphaType alphaType = codec->computeOutputAlphaType(requireUnpremultiplied);
const SkImageInfo decodeInfo = SkImageInfo::Make(size.width(), size.height(), decodeColorType,
alphaType);
SkImageInfo bitmapInfo = decodeInfo;
if (decodeColorType == kGray_8_SkColorType) {
// The legacy implementation of BitmapFactory used kAlpha8 for
// grayscale images (before kGray8 existed). While the codec
// recognizes kGray8, we need to decode into a kAlpha8 bitmap
// in order to avoid a behavior change.
bitmapInfo = SkImageInfo::MakeA8(size.width(), size.height());
}
SkBitmap decodingBitmap;
if (!decodingBitmap.setInfo(bitmapInfo) ||
!decodingBitmap.tryAllocPixels(decodeAllocator, colorTable)) {
// SkAndroidCodec should recommend a valid SkImageInfo, so setInfo()
// should only only fail if the calculated value for rowBytes is too
// large.
// tryAllocPixels() can fail due to OOM on the Java heap, OOM on the
// native heap, or the recycled javaBitmap being too small to reuse.
return nullptr;
}
// Use SkAndroidCodec to perform the decode.
SkAndroidCodec::AndroidOptions codecOptions;
codecOptions.fZeroInitialized = (decodeAllocator == &javaAllocator) ?
SkCodec::kYes_ZeroInitialized : SkCodec::kNo_ZeroInitialized;
codecOptions.fColorPtr = colorPtr;
codecOptions.fColorCount = colorCount;
codecOptions.fSampleSize = sampleSize;
SkCodec::Result result = codec->getAndroidPixels(decodeInfo, decodingBitmap.getPixels(),
decodingBitmap.rowBytes(), &codecOptions);
switch (result) {
case SkCodec::kSuccess:
case SkCodec::kIncompleteInput:
break;
default:
return nullObjectReturn("codec->getAndroidPixels() failed.");
}
jbyteArray ninePatchChunk = NULL;
if (peeker.mPatch != NULL) {
if (willScale) {
scaleNinePatchChunk(peeker.mPatch, scale, scaledWidth, scaledHeight);
}
size_t ninePatchArraySize = peeker.mPatch->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");
}
memcpy(array, peeker.mPatch, peeker.mPatchSize);
env->ReleasePrimitiveArrayCritical(ninePatchChunk, array, 0);
}
jobject ninePatchInsets = NULL;
if (peeker.mHasInsets) {
ninePatchInsets = env->NewObject(gInsetStruct_class, gInsetStruct_constructorMethodID,
peeker.mOpticalInsets[0], peeker.mOpticalInsets[1], peeker.mOpticalInsets[2], peeker.mOpticalInsets[3],
peeker.mOutlineInsets[0], peeker.mOutlineInsets[1], peeker.mOutlineInsets[2], peeker.mOutlineInsets[3],
peeker.mOutlineRadius, peeker.mOutlineAlpha, scale);
if (ninePatchInsets == NULL) {
return nullObjectReturn("nine patch insets == null");
}
if (javaBitmap != NULL) {
env->SetObjectField(javaBitmap, gBitmap_ninePatchInsetsFieldID, ninePatchInsets);
}
}
SkBitmap outputBitmap;
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(decodingBitmap.width());
const float sy = scaledHeight / float(decodingBitmap.height());
// Set the allocator for the outputBitmap.
SkBitmap::Allocator* outputAllocator;
if (javaBitmap != nullptr) {
outputAllocator = &recyclingAllocator;
} else {
outputAllocator = &javaAllocator;
}
SkColorType scaledColorType = colorTypeForScaledOutput(decodingBitmap.colorType());
// FIXME: If the alphaType is kUnpremul and the image has alpha, the
// colors may not be correct, since Skia does not yet support drawing
// to/from unpremultiplied bitmaps.
outputBitmap.setInfo(SkImageInfo::Make(scaledWidth, scaledHeight,
scaledColorType, decodingBitmap.alphaType()));
if (!outputBitmap.tryAllocPixels(outputAllocator, NULL)) {
// This should only fail on OOM. The recyclingAllocator should have
// enough memory since we check this before decoding using the
// scaleCheckingAllocator.
return nullObjectReturn("allocation failed for scaled bitmap");
}
SkPaint paint;
// kSrc_Mode instructs us to overwrite the unininitialized pixels in
// outputBitmap. Otherwise we would blend by default, which is not
// what we want.
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
paint.setFilterQuality(kLow_SkFilterQuality);
SkCanvas canvas(outputBitmap);
canvas.scale(sx, sy);
canvas.drawBitmap(decodingBitmap, 0.0f, 0.0f, &paint);
} else {
outputBitmap.swap(decodingBitmap);
}
if (padding) {
if (peeker.mPatch != NULL) {
GraphicsJNI::set_jrect(env, padding,
peeker.mPatch->paddingLeft, peeker.mPatch->paddingTop,
peeker.mPatch->paddingRight, peeker.mPatch->paddingBottom);
} else {
GraphicsJNI::set_jrect(env, padding, -1, -1, -1, -1);
}
}
// If we get here, the outputBitmap should have an installed pixelref.
if (outputBitmap.pixelRef() == NULL) {
return nullObjectReturn("Got null SkPixelRef");
}
if (!isMutable && javaBitmap == NULL) {
// promise we will never change our pixels (great for sharing and pictures)
outputBitmap.setImmutable();
}
bool isPremultiplied = !requireUnpremultiplied;
if (javaBitmap != nullptr) {
GraphicsJNI::reinitBitmap(env, javaBitmap, outputBitmap.info(), isPremultiplied);
outputBitmap.notifyPixelsChanged();
// If a java bitmap was passed in for reuse, pass it back
return javaBitmap;
}
int bitmapCreateFlags = 0x0;
if (isMutable) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Mutable;
if (isPremultiplied) bitmapCreateFlags |= GraphicsJNI::kBitmapCreateFlag_Premultiplied;
// now create the java bitmap
return GraphicsJNI::createBitmap(env, javaAllocator.getStorageObjAndReset(),
bitmapCreateFlags, ninePatchChunk, ninePatchInsets, -1);
}
static jobject nativeDecodeStream(JNIEnv* env, jobject clazz, jobject is, jbyteArray storage,
jobject padding, jobject options) {
jobject bitmap = NULL;
std::unique_ptr<SkStream> stream(CreateJavaInputStreamAdaptor(env, is, storage));
if (stream.get()) {
std::unique_ptr<SkStreamRewindable> bufferedStream(
SkFrontBufferedStream::Create(stream.release(), SkCodec::MinBufferedBytesNeeded()));
SkASSERT(bufferedStream.get() != NULL);
bitmap = doDecode(env, bufferedStream.release(), padding, options);
}
return bitmap;
}
static jobject nativeDecodeFileDescriptor(JNIEnv* env, jobject clazz, jobject fileDescriptor,
jobject padding, jobject bitmapFactoryOptions) {
NPE_CHECK_RETURN_ZERO(env, fileDescriptor);
int descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor);
struct stat fdStat;
if (fstat(descriptor, &fdStat) == -1) {
doThrowIOE(env, "broken file descriptor");
return nullObjectReturn("fstat return -1");
}
// Restore the descriptor's offset on exiting this function. Even though
// we dup the descriptor, both the original and dup refer to the same open
// file description and changes to the file offset in one impact the other.
AutoFDSeek autoRestore(descriptor);
// Duplicate the descriptor here to prevent leaking memory. A leak occurs
// if we only close the file descriptor and not the file object it is used to
// create. If we don't explicitly clean up the file (which in turn closes the
// descriptor) the buffers allocated internally by fseek will be leaked.
int dupDescriptor = dup(descriptor);
FILE* file = fdopen(dupDescriptor, "r");
if (file == NULL) {
// cleanup the duplicated descriptor since it will not be closed when the
// file is cleaned up (fclose).
close(dupDescriptor);
return nullObjectReturn("Could not open file");
}
std::unique_ptr<SkFILEStream> fileStream(new SkFILEStream(file,
SkFILEStream::kCallerPasses_Ownership));
// If there is no offset for the file descriptor, we use SkFILEStream directly.
if (::lseek(descriptor, 0, SEEK_CUR) == 0) {
assert(isSeekable(dupDescriptor));
return doDecode(env, fileStream.release(), padding, bitmapFactoryOptions);
}
// Use a buffered stream. Although an SkFILEStream can be rewound, this
// ensures that SkImageDecoder::Factory never rewinds beyond the
// current position of the file descriptor.
std::unique_ptr<SkStreamRewindable> stream(SkFrontBufferedStream::Create(fileStream.release(),
SkCodec::MinBufferedBytesNeeded()));
return doDecode(env, stream.release(), padding, bitmapFactoryOptions);
}
static jobject nativeDecodeAsset(JNIEnv* env, jobject clazz, jlong native_asset,
jobject padding, jobject options) {
Asset* asset = reinterpret_cast<Asset*>(native_asset);
// since we know we'll be done with the asset when we return, we can
// just use a simple wrapper
std::unique_ptr<AssetStreamAdaptor> stream(new AssetStreamAdaptor(asset));
return doDecode(env, stream.release(), padding, options);
}
static jobject nativeDecodeByteArray(JNIEnv* env, jobject, jbyteArray byteArray,
jint offset, jint length, jobject options) {
AutoJavaByteArray ar(env, byteArray);
std::unique_ptr<SkMemoryStream> stream(new SkMemoryStream(ar.ptr() + offset, length, false));
return doDecode(env, stream.release(), NULL, options);
}
static jboolean nativeIsSeekable(JNIEnv* env, jobject, jobject fileDescriptor) {
jint descriptor = jniGetFDFromFileDescriptor(env, fileDescriptor);
return isSeekable(descriptor) ? JNI_TRUE : JNI_FALSE;
}
jobject decodeBitmap(JNIEnv* env, void* data, size_t size) {
SkMemoryStream stream(data, size);
return doDecode(env, &stream, NULL, NULL);
}
///////////////////////////////////////////////////////////////////////////////
static const 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",
"(JLandroid/graphics/Rect;Landroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;",
(void*)nativeDecodeAsset
},
{ "nativeDecodeByteArray",
"([BIILandroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;",
(void*)nativeDecodeByteArray
},
{ "nativeIsSeekable",
"(Ljava/io/FileDescriptor;)Z",
(void*)nativeIsSeekable
},
};
int register_android_graphics_BitmapFactory(JNIEnv* env) {
jclass options_class = FindClassOrDie(env, "android/graphics/BitmapFactory$Options");
gOptions_bitmapFieldID = GetFieldIDOrDie(env, options_class, "inBitmap",
"Landroid/graphics/Bitmap;");
gOptions_justBoundsFieldID = GetFieldIDOrDie(env, options_class, "inJustDecodeBounds", "Z");
gOptions_sampleSizeFieldID = GetFieldIDOrDie(env, options_class, "inSampleSize", "I");
gOptions_configFieldID = GetFieldIDOrDie(env, options_class, "inPreferredConfig",
"Landroid/graphics/Bitmap$Config;");
gOptions_premultipliedFieldID = GetFieldIDOrDie(env, options_class, "inPremultiplied", "Z");
gOptions_mutableFieldID = GetFieldIDOrDie(env, options_class, "inMutable", "Z");
gOptions_ditherFieldID = GetFieldIDOrDie(env, options_class, "inDither", "Z");
gOptions_preferQualityOverSpeedFieldID = GetFieldIDOrDie(env, options_class,
"inPreferQualityOverSpeed", "Z");
gOptions_scaledFieldID = GetFieldIDOrDie(env, options_class, "inScaled", "Z");
gOptions_densityFieldID = GetFieldIDOrDie(env, options_class, "inDensity", "I");
gOptions_screenDensityFieldID = GetFieldIDOrDie(env, options_class, "inScreenDensity", "I");
gOptions_targetDensityFieldID = GetFieldIDOrDie(env, options_class, "inTargetDensity", "I");
gOptions_widthFieldID = GetFieldIDOrDie(env, options_class, "outWidth", "I");
gOptions_heightFieldID = GetFieldIDOrDie(env, options_class, "outHeight", "I");
gOptions_mimeFieldID = GetFieldIDOrDie(env, options_class, "outMimeType", "Ljava/lang/String;");
gOptions_mCancelID = GetFieldIDOrDie(env, options_class, "mCancel", "Z");
jclass bitmap_class = FindClassOrDie(env, "android/graphics/Bitmap");
gBitmap_ninePatchInsetsFieldID = GetFieldIDOrDie(env, bitmap_class, "mNinePatchInsets",
"Landroid/graphics/NinePatch$InsetStruct;");
gInsetStruct_class = MakeGlobalRefOrDie(env, FindClassOrDie(env,
"android/graphics/NinePatch$InsetStruct"));
gInsetStruct_constructorMethodID = GetMethodIDOrDie(env, gInsetStruct_class, "<init>",
"(IIIIIIIIFIF)V");
return android::RegisterMethodsOrDie(env, "android/graphics/BitmapFactory",
gMethods, NELEM(gMethods));
}