Signal-Android/app/src/main/java/org/thoughtcrime/securesms/mediasend/camerax/SurfaceRotation.java

47 lines
1.6 KiB
Java

/*
* Copyright 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 org.thoughtcrime.securesms.mediasend.camerax;
import android.view.Surface;
final class SurfaceRotation {
/**
* Get the int value degree of a rotation from the {@link Surface} constants.
*
* <p>Valid values for the relative rotation are {@link Surface#ROTATION_0}, {@link
* * Surface#ROTATION_90}, {@link Surface#ROTATION_180}, {@link Surface#ROTATION_270}.
*/
static int rotationDegreesFromSurfaceRotation(int rotationConstant) {
switch (rotationConstant) {
case Surface.ROTATION_0:
return 0;
case Surface.ROTATION_90:
return 90;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_270:
return 270;
default:
throw new UnsupportedOperationException(
"Unsupported surface rotation constant: " + rotationConstant);
}
}
/** Prevents construction */
private SurfaceRotation() {}
}