SurfaceWrapperProvider.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.car.app.activity.renderer.surface;
import static androidx.annotation.RestrictTo.Scope.LIBRARY;
import android.os.IBinder;
import android.util.DisplayMetrics;
import android.view.Surface;
import androidx.annotation.NonNull;
import androidx.annotation.RestrictTo;
/**
* Provides the render config for the given {@link TemplateSurfaceView}.
*
* @hide
*/
@RestrictTo(LIBRARY)
public final class SurfaceWrapperProvider {
private final TemplateSurfaceView mSurfaceView;
public SurfaceWrapperProvider(@NonNull TemplateSurfaceView surfaceView) {
super();
mSurfaceView = surfaceView;
}
/** Creates a new render config for the current state of the holding surface view. */
@NonNull
public SurfaceWrapper createSurfaceWrapper() {
IBinder hostToken = mSurfaceView.getSurfaceToken();
int width = mSurfaceView.getWidth();
int height = mSurfaceView.getHeight();
int displayId = mSurfaceView.getDisplay().getDisplayId();
int densityDpi = densityDpi();
Surface surface = mSurfaceView.getHolder().getSurface();
return new SurfaceWrapper(hostToken, width, height, displayId, densityDpi, surface);
}
private int densityDpi() {
DisplayMetrics displayMetrics = new DisplayMetrics();
mSurfaceView.getDisplay().getRealMetrics(displayMetrics);
return displayMetrics.densityDpi;
}
}