/** Performs the decode synchronously. */
private void doDecode(EncodedImage encodedImage, boolean isLast) {
if (isFinished() || !EncodedImage.isValid(encodedImage)) {
return;
}
try {
long queueTime = mJobScheduler.getQueuedTime();
int length = isLast ? encodedImage.getSize() : getIntermediateImageEndOffset(encodedImage);
QualityInfo quality = isLast ? ImmutableQualityInfo.FULL_QUALITY : getQualityInfo();
mProducerListener.onProducerStart(mProducerContext.getId(), PRODUCER_NAME);
CloseableImage image = null;
try {
image = mImageDecoder.decodeImage(encodedImage, length, quality, mImageDecodeOptions);
} catch (Exception e) {
Map<String, String> extraMap = getExtraMap(image, queueTime, quality, isLast);
mProducerListener.onProducerFinishWithFailure(
mProducerContext.getId(), PRODUCER_NAME, e, extraMap);
handleError(e);
return;
}
Map<String, String> extraMap = getExtraMap(image, queueTime, quality, isLast);
mProducerListener.onProducerFinishWithSuccess(
mProducerContext.getId(), PRODUCER_NAME, extraMap);
handleResult(image, isLast);
} finally {
EncodedImage.closeSafely(encodedImage);
}
}
/**
* Finishes if not already finished and <code>shouldFinish</code> is specified.
*
* <p>If just finished, the intermediate image gets released.
*/
private void maybeFinish(boolean shouldFinish) {
synchronized (ProgressiveDecoder.this) {
if (!shouldFinish || mIsFinished) {
return;
}
mIsFinished = true;
}
mJobScheduler.clearJob();
}
@Override
public void onNewResultImpl(EncodedImage newResult, boolean isLast) {
if (isLast && !EncodedImage.isValid(newResult)) {
handleError(new NullPointerException("Encoded image is not valid."));
return;
}
if (!updateDecodeJob(newResult, isLast)) {
return;
}
if (isLast || mProducerContext.isIntermediateResultExpected()) {
mJobScheduler.scheduleJob();
}
}
/** Updates the decode job. */
protected boolean updateDecodeJob(EncodedImage ref, boolean isLast) {
return mJobScheduler.updateJob(ref, isLast);
}