MaxPreviewSize.java
/*
* Copyright 2021 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 androidx.camera.camera2.internal.compat.workaround;
import android.util.Size;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.annotation.VisibleForTesting;
import androidx.camera.camera2.internal.compat.quirk.DeviceQuirks;
import androidx.camera.camera2.internal.compat.quirk.ExtraCroppingQuirk;
import androidx.camera.core.impl.SurfaceConfig;
/**
* Helper class that overrides the maximum preview size used in surface combination check.
*
* @see androidx.camera.camera2.internal.SupportedSurfaceCombination
*/
@RequiresApi(21)
public class MaxPreviewSize {
@Nullable
private final ExtraCroppingQuirk mExtraCroppingQuirk;
/**
* Constructs new {@link MaxPreviewSize}.
*/
public MaxPreviewSize() {
this(DeviceQuirks.get(ExtraCroppingQuirk.class));
}
/**
* Constructs new {@link MaxPreviewSize}.
*/
@VisibleForTesting
MaxPreviewSize(@Nullable ExtraCroppingQuirk extraCroppingQuirk) {
mExtraCroppingQuirk = extraCroppingQuirk;
}
/**
* Gets the max preview resolution based on the default preview max resolution.
*
* <p> If select resolution is larger than the default resolution, return the select
* resolution. The select resolution has been manually tested on the device. Otherwise,
* return the default max resolution.
*/
@NonNull
public Size getMaxPreviewResolution(@NonNull Size defaultMaxPreviewResolution) {
if (mExtraCroppingQuirk == null) {
return defaultMaxPreviewResolution;
}
Size selectResolution = mExtraCroppingQuirk.getVerifiedResolution(
SurfaceConfig.ConfigType.PRIV);
if (selectResolution == null) {
return defaultMaxPreviewResolution;
}
boolean isSelectResolutionLarger =
selectResolution.getWidth() * selectResolution.getHeight()
> defaultMaxPreviewResolution.getWidth()
* defaultMaxPreviewResolution.getHeight();
return isSelectResolutionLarger ? selectResolution : defaultMaxPreviewResolution;
}
}