| /* |
| * Copyright (C) 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 com.android.wm.shell.common; |
| |
| import android.view.SurfaceControl; |
| import android.view.SurfaceSession; |
| |
| /** |
| * Helpers for handling surface. |
| */ |
| public class SurfaceUtils { |
| /** Creates a dim layer above indicated host surface. */ |
| public static SurfaceControl makeDimLayer(SurfaceControl.Transaction t, SurfaceControl host, |
| String name, SurfaceSession surfaceSession) { |
| SurfaceControl dimLayer = new SurfaceControl.Builder(surfaceSession) |
| .setParent(host) |
| .setColorLayer() |
| .setName(name) |
| .setCallsite("SurfaceUtils.makeDimLayer") |
| .build(); |
| t.setLayer(dimLayer, Integer.MAX_VALUE).setColor(dimLayer, new float[]{0f, 0f, 0f}); |
| return dimLayer; |
| } |
| } |