/** Gets the {@code DrawableParent} for index. */
public DrawableParent getDrawableParentForIndex(int index) {
Preconditions.checkArgument(index >= 0);
Preconditions.checkArgument(index < mDrawableParents.length);
if (mDrawableParents[index] == null) {
mDrawableParents[index] = createDrawableParentForIndex(index);
}
return mDrawableParents[index];
}
public PostprocessorProducer(
Producer<CloseableReference<CloseableImage>> inputProducer,
PlatformBitmapFactory platformBitmapFactory,
Executor executor) {
mInputProducer = Preconditions.checkNotNull(inputProducer);
mBitmapFactory = platformBitmapFactory;
mExecutor = Preconditions.checkNotNull(executor);
}
public ThrottlingProducer(
int maxSimultaneousRequests, Executor executor, final Producer<T> inputProducer) {
mMaxSimultaneousRequests = maxSimultaneousRequests;
mExecutor = Preconditions.checkNotNull(executor);
mInputProducer = Preconditions.checkNotNull(inputProducer);
mPendingRequests = new ConcurrentLinkedQueue<Pair<Consumer<T>, ProducerContext>>();
mNumCurrentRequests = 0;
}
public NetworkImagesProgressiveDecoder(
final Consumer<CloseableReference<CloseableImage>> consumer,
final ProducerContext producerContext,
final ProgressiveJpegParser progressiveJpegParser,
final ProgressiveJpegConfig progressiveJpegConfig) {
super(consumer, producerContext);
mProgressiveJpegParser = Preconditions.checkNotNull(progressiveJpegParser);
mProgressiveJpegConfig = Preconditions.checkNotNull(progressiveJpegConfig);
mLastScheduledScanNumber = 0;
}
/** Validates the parameters before building a controller. */
protected void validate() {
Preconditions.checkState(
(mMultiImageRequests == null) || (mImageRequest == null),
"Cannot specify both ImageRequest and FirstAvailableImageRequests!");
Preconditions.checkState(
(mDataSourceSupplier == null)
|| (mMultiImageRequests == null
&& mImageRequest == null
&& mLowResImageRequest == null),
"Cannot specify DataSourceSupplier with other ImageRequests! Use one or the other.");
}
public DecodeProducer(
final ByteArrayPool byteArrayPool,
final Executor executor,
final ImageDecoder imageDecoder,
final ProgressiveJpegConfig progressiveJpegConfig,
final Producer<CloseableReference<PooledByteBuffer>> nextProducer) {
mByteArrayPool = Preconditions.checkNotNull(byteArrayPool);
mExecutor = Preconditions.checkNotNull(executor);
mImageDecoder = Preconditions.checkNotNull(imageDecoder);
mProgressiveJpegConfig = Preconditions.checkNotNull(progressiveJpegConfig);
mNextProducer = Preconditions.checkNotNull(nextProducer);
}
/**
* Creates a new inputstream instance over the specific memory chunk.
*
* @param nativeMemoryChunk the native memory chunk
* @param startOffset start offset within the memory chunk
* @param length length of subchunk
*/
public NativeMemoryChunkInputStream(
NativeMemoryChunk nativeMemoryChunk, int startOffset, int length) {
super();
Preconditions.checkState(startOffset >= 0);
Preconditions.checkState(length >= 0);
mMemoryChunk = Preconditions.checkNotNull(nativeMemoryChunk);
mStartOffset = startOffset;
mEndOffset =
startOffset + length > nativeMemoryChunk.getSize()
? nativeMemoryChunk.getSize()
: startOffset + length;
mOffset = startOffset;
mMark = startOffset;
}
/** Wraps the parent's child with a ScaleTypeDrawable. */
static ScaleTypeDrawable wrapChildWithScaleType(DrawableParent parent, ScaleType scaleType) {
Drawable child = parent.setDrawable(sEmptyDrawable);
child = maybeWrapWithScaleType(child, scaleType);
parent.setDrawable(child);
Preconditions.checkNotNull(child, "Parent has no child drawable!");
return (ScaleTypeDrawable) child;
}
private CloseableReference<Bitmap> decodeStaticImageFromStream(
InputStream inputStream, BitmapFactory.Options options) {
Preconditions.checkNotNull(inputStream);
int sizeInBytes =
BitmapUtil.getSizeInByteForBitmap(
options.outWidth, options.outHeight, options.inPreferredConfig);
final Bitmap bitmapToReuse = mBitmapPool.get(sizeInBytes);
if (bitmapToReuse == null) {
throw new NullPointerException("BitmapPool.get returned null");
}
options.inBitmap = bitmapToReuse;
Bitmap decodedBitmap;
ByteBuffer byteBuffer = mDecodeBuffers.acquire();
if (byteBuffer == null) {
byteBuffer = ByteBuffer.allocate(DECODE_BUFFER_SIZE);
}
try {
options.inTempStorage = byteBuffer.array();
decodedBitmap = BitmapFactory.decodeStream(inputStream, null, options);
} catch (RuntimeException re) {
mBitmapPool.release(bitmapToReuse);
throw re;
} finally {
mDecodeBuffers.release(byteBuffer);
}
if (bitmapToReuse != decodedBitmap) {
mBitmapPool.release(bitmapToReuse);
decodedBitmap.recycle();
throw new IllegalStateException();
}
return CloseableReference.of(decodedBitmap, mBitmapPool);
}
private void doPostprocessing(
CloseableReference<CloseableImage> sourceImageRef, boolean isLast) {
Preconditions.checkArgument(CloseableReference.isValid(sourceImageRef));
if (!shouldPostprocess(sourceImageRef.get())) {
maybeNotifyOnNewResult(sourceImageRef, isLast);
return;
}
mListener.onProducerStart(mRequestId, NAME);
CloseableReference<CloseableImage> destImageRef = null;
try {
try {
destImageRef = postprocessInternal(sourceImageRef.get());
} catch (Exception e) {
mListener.onProducerFinishWithFailure(
mRequestId, NAME, e, getExtraMap(mListener, mRequestId, mPostprocessor));
maybeNotifyOnFailure(e);
return;
}
mListener.onProducerFinishWithSuccess(
mRequestId, NAME, getExtraMap(mListener, mRequestId, mPostprocessor));
maybeNotifyOnNewResult(destImageRef, isLast);
} finally {
CloseableReference.closeSafely(destImageRef);
}
}
/**
* Creates a bitmap from encoded JPEG bytes. Supports a partial JPEG image.
*
* @param encodedImage the encoded image with reference to the encoded bytes
* @param bitmapConfig the {@link android.graphics.Bitmap.Config} used to create the decoded
* Bitmap
* @param length the number of encoded bytes in the buffer
* @return the bitmap
* @exception java.lang.OutOfMemoryError if the Bitmap cannot be allocated
*/
@Override
public CloseableReference<Bitmap> decodeJPEGFromEncodedImage(
EncodedImage encodedImage, Bitmap.Config bitmapConfig, int length) {
boolean isJpegComplete = encodedImage.isCompleteAt(length);
final BitmapFactory.Options options = getDecodeOptionsForStream(encodedImage, bitmapConfig);
InputStream jpegDataStream = encodedImage.getInputStream();
// At this point the InputStream from the encoded image should not be null since in the
// pipeline,this comes from a call stack where this was checked before. Also this method needs
// the InputStream to decode the image so this can't be null.
Preconditions.checkNotNull(jpegDataStream);
if (encodedImage.getSize() > length) {
jpegDataStream = new LimitedInputStream(jpegDataStream, length);
}
if (!isJpegComplete) {
jpegDataStream = new TailAppendingInputStream(jpegDataStream, EOI_TAIL);
}
boolean retryOnFail = options.inPreferredConfig != Bitmap.Config.ARGB_8888;
try {
return decodeStaticImageFromStream(jpegDataStream, options);
} catch (RuntimeException re) {
if (retryOnFail) {
return decodeFromEncodedImage(encodedImage, Bitmap.Config.ARGB_8888);
}
throw re;
}
}
public DecodeProducer(
final ByteArrayPool byteArrayPool,
final Executor executor,
final ImageDecoder imageDecoder,
final ProgressiveJpegConfig progressiveJpegConfig,
final boolean downsampleEnabled,
final boolean downsampleEnabledForNetwork,
final Producer<EncodedImage> inputProducer) {
mByteArrayPool = Preconditions.checkNotNull(byteArrayPool);
mExecutor = Preconditions.checkNotNull(executor);
mImageDecoder = Preconditions.checkNotNull(imageDecoder);
mProgressiveJpegConfig = Preconditions.checkNotNull(progressiveJpegConfig);
mDownsampleEnabled = downsampleEnabled;
mDownsampleEnabledForNetwork = downsampleEnabledForNetwork;
mInputProducer = Preconditions.checkNotNull(inputProducer);
}
/**
* Constructs a new layer drawable.
*
* @param layers the layers that this drawable displays
*/
public ArrayDrawable(Drawable[] layers) {
Preconditions.checkNotNull(layers);
mLayers = layers;
for (int i = 0; i < mLayers.length; i++) {
DrawableUtils.setCallbacks(mLayers[i], this, this);
}
mDrawableParents = new DrawableParent[mLayers.length];
}
/**
* Creates a {@link WebPImage} from the specified encoded data. This will throw if it fails to
* create. This is meant to be called on a worker thread.
*
* @param source the data to the image (a copy will be made)
*/
public static WebPImage create(byte[] source) {
ensure();
Preconditions.checkNotNull(source);
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(source.length);
byteBuffer.put(source);
byteBuffer.rewind();
return nativeCreateFromDirectByteBuffer(byteBuffer);
}
/** Sets a new drawable at the specified index, and return the previous drawable, if any. */
@Nullable
public Drawable setDrawable(int index, @Nullable Drawable drawable) {
Preconditions.checkArgument(index >= 0);
Preconditions.checkArgument(index < mLayers.length);
final Drawable oldDrawable = mLayers[index];
if (drawable != oldDrawable) {
if (drawable != null && mIsMutated) {
drawable.mutate();
}
DrawableUtils.setCallbacks(mLayers[index], null, null);
DrawableUtils.setCallbacks(drawable, null, null);
DrawableUtils.setDrawableProperties(drawable, mDrawableProperties);
DrawableUtils.copyProperties(drawable, this);
DrawableUtils.setCallbacks(drawable, this, this);
mIsStatefulCalculated = false;
mLayers[index] = drawable;
invalidateSelf();
}
return oldDrawable;
}
public SerialDelegatingExecutor(Executor delegate) {
mDelegate = Preconditions.checkNotNull(delegate);
mExecutionInProgress = false;
mCommands = new LinkedList<Runnable>();
mRunnable =
new Runnable() {
@Override
public void run() {
executeSingleCommand();
}
};
}
public BitmapMemoryCacheKey(
String sourceString,
@Nullable ResizeOptions resizeOptions,
boolean autoRotated,
ImageDecodeOptions imageDecodeOptions) {
mSourceString = Preconditions.checkNotNull(sourceString);
mResizeOptions = resizeOptions;
mAutoRotated = autoRotated;
mImageDecodeOptions = imageDecodeOptions;
mHash =
HashCodeUtil.hashCode(
sourceString.hashCode(),
(resizeOptions != null) ? resizeOptions.hashCode() : 0,
autoRotated ? Boolean.TRUE.hashCode() : Boolean.FALSE.hashCode(),
mImageDecodeOptions);
}
/**
* Submits a request for execution and returns a DataSource representing the pending encoded
* image(s).
*
* <p>The ResizeOptions in the imageRequest will be ignored for this fetch
*
* <p>The returned DataSource must be closed once the client has finished with it.
*
* @param imageRequest the request to submit
* @return a DataSource representing the pending encoded image(s)
*/
public DataSource<CloseableReference<PooledByteBuffer>> fetchEncodedImage(
ImageRequest imageRequest, Object callerContext) {
Preconditions.checkNotNull(imageRequest.getSourceUri());
try {
Producer<CloseableReference<PooledByteBuffer>> producerSequence =
mProducerSequenceFactory.getEncodedImageProducerSequence(imageRequest);
// The resize options are used to determine whether images are going to be downsampled during
// decode or not. For the case where the image has to be downsampled and it's a local image it
// will be kept as a FileInputStream until decoding instead of reading it in memory. Since
// this method returns an encoded image, it should always be read into memory. Therefore, the
// resize options are ignored to avoid treating the image as if it was to be downsampled
// during decode.
if (imageRequest.getResizeOptions() != null) {
imageRequest = ImageRequestBuilder.fromRequest(imageRequest).setResizeOptions(null).build();
}
return submitFetchRequest(
producerSequence, imageRequest, ImageRequest.RequestLevel.FULL_FETCH, callerContext);
} catch (Exception exception) {
return DataSources.immediateFailedDataSource(exception);
}
}
/**
* Gets the drawable at the specified index.
*
* @param index index of drawable to get
* @return drawable at the specified index
*/
@Nullable
public Drawable getDrawable(int index) {
Preconditions.checkArgument(index >= 0);
Preconditions.checkArgument(index < mLayers.length);
return mLayers[index];
}
public SimpleCacheKey(String s) {
mKey = (String) Preconditions.checkNotNull(s);
}
public static WebPImage create(long nativePtr, int sizeInBytes) {
ensure();
Preconditions.checkArgument(nativePtr != 0);
return nativeCreateFromNativeMemory(nativePtr, sizeInBytes);
}
public ImageUrlsRequestBuilder(final String endpointUrl) {
mEndpointUrl = Preconditions.checkNotNull(endpointUrl);
mRequestedImageFormats = new HashMap<>();
}
