/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.camera.processing.imagebackend;
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import android.net.Uri;
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/**
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* Defines the interactions between the Tasks that are running on ImageBackend and other subsystems
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* (such as UI) which need to update and listen for said event (such as preview completition).
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*/
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public interface ImageProcessorListener {
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/*
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* !!!!PLACEHOLDER IMPLEMENTATION!!!! Unclear what the best pattern for listeners, given the
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* types of tasks and the return types For now, I've gone with a minimal interface that is not
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* currently plumbed for error handling.
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*/
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/**
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* Called when a task starts running.
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*
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* @param task Task specification that includes unique content id
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*/
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public void onStart(TaskImageContainer.TaskInfo task);
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/**
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* Called when compressed image is complete and is ready for further processing
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*
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* @param task Task specification that includes unique content id
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* @param payload Byte array that contains the compressed image data
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*/
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public void onResultCompressed(TaskImageContainer.TaskInfo task,
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TaskImageContainer.CompressedPayload payload);
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/**
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* Called when uncompressed image conversion is done and is ready for further processing
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*
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* @param task Task specification that includes unique content id
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* @param payload 32-bit Integer array that contains the uncompressed image data
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*/
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public void onResultUncompressed(TaskImageContainer.TaskInfo task,
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TaskImageContainer.UncompressedPayload payload);
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/**
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* Called when image has been written to disk and ready for further processing via uri.
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*
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* @param task Task specification that includes unique content id
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* @param uri Uri that serves as handle to image written to disk
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*/
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public void onResultUri(TaskImageContainer.TaskInfo task, Uri uri);
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// TODO: Figure out how to best error handling interface
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// public void onError(TaskImageContainer.JobInfo task);
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}
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