/// <summary>
/// bitmap cache get ->
/// background thread hand-off -> multiplex ->
/// bitmap cache -> decode -> branch on separate images
/// -> exif resize and rotate -> exif thumbnail creation
/// -> local image resize and rotate -> add meta data producer
/// -> multiplex -> encoded cache -> (webp transcode)
/// -> local asset fetch.
/// </summary>
private IProducer <CloseableReference <CloseableImage> > GetLocalAssetFetchSequence()
{
lock (_gate)
{
if (_localAssetFetchSequence == null)
{
LocalAssetFetchProducer localAssetFetchProducer =
_producerFactory.NewLocalAssetFetchProducer();
_localAssetFetchSequence =
NewBitmapCacheGetToLocalTransformSequence(localAssetFetchProducer);
}
return(_localAssetFetchSequence);
}
}
/// <summary>
/// encoded cache multiplex -> encoded cache -> local asset fetch.
/// </summary>
private IProducer <CloseableReference <IPooledByteBuffer> > GetEncodedLocalAssetFetchSequence()
{
lock (_gate)
{
if (_encodedLocalAssetFetchSequence == null)
{
LocalAssetFetchProducer localAssetFetchProducer =
_producerFactory.NewLocalAssetFetchProducer();
_encodedLocalAssetFetchSequence = new RemoveImageTransformMetaDataProducer(
NewEncodedCacheMultiplexToTranscodeSequence(localAssetFetchProducer));
}
return(_encodedLocalAssetFetchSequence);
}
}
