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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.hardware.camera2.impl;
import android.hardware.camera2.CaptureRequest;
import android.view.Surface;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.Executor;
public class CaptureCallbackHolder {
private final boolean mRepeating;
private final CaptureCallback mCallback;
private final List<CaptureRequest> mRequestList;
private final Executor mExecutor;
private final int mSessionId;
/**
* <p>Determine if the callback holder is for a constrained high speed request list that
* expects batched capture results. Capture results will be batched if the request list
* is interleaved with preview and video requests. Capture results won't be batched if the
* request list only contains preview requests, or if the request doesn't belong to a
* constrained high speed list.
*/
private final boolean mHasBatchedOutputs;
CaptureCallbackHolder(CaptureCallback callback, List<CaptureRequest> requestList,
Executor executor, boolean repeating, int sessionId) {
if (callback == null || executor == null) {
throw new UnsupportedOperationException(
"Must have a valid handler and a valid callback");
}
mRepeating = repeating;
mExecutor = executor;
mRequestList = new ArrayList<CaptureRequest>(requestList);
mCallback = callback;
mSessionId = sessionId;
// Check whether this callback holder is for batched outputs.
// The logic here should match createHighSpeedRequestList.
boolean hasBatchedOutputs = true;
for (int i = 0; i < requestList.size(); i++) {
CaptureRequest request = requestList.get(i);
if (!request.isPartOfCRequestList()) {
hasBatchedOutputs = false;
break;
}
if (i == 0) {
Collection<Surface> targets = request.getTargets();
if (targets.size() != 2) {
hasBatchedOutputs = false;
break;
}
}
}
mHasBatchedOutputs = hasBatchedOutputs;
}
public boolean isRepeating() {
return mRepeating;
}
public CaptureCallback getCallback() {
return mCallback;
}
public CaptureRequest getRequest(int subsequenceId) {
if (subsequenceId >= mRequestList.size()) {
throw new IllegalArgumentException(
String.format(
"Requested subsequenceId %d is larger than request list size %d.",
subsequenceId, mRequestList.size()));
} else {
if (subsequenceId < 0) {
throw new IllegalArgumentException(String.format(
"Requested subsequenceId %d is negative", subsequenceId));
} else {
return mRequestList.get(subsequenceId);
}
}
}
public CaptureRequest getRequest() {
return getRequest(0);
}
public Executor getExecutor() {
return mExecutor;
}
public int getSessionId() {
return mSessionId;
}
public int getRequestCount() {
return mRequestList.size();
}
public boolean hasBatchedOutputs() {
return mHasBatchedOutputs;
}
}
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