| /* |
| * Copyright (C) 2016 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.server.wm; |
| |
| import android.annotation.Nullable; |
| import android.graphics.GraphicBuffer; |
| import android.util.ArrayMap; |
| |
| /** |
| * Caches snapshots. See {@link TaskSnapshotController}. |
| * <p> |
| * Access to this class should be guarded by the global window manager lock. |
| */ |
| class TaskSnapshotCache { |
| |
| private final ArrayMap<Task, GraphicBuffer> mCache = new ArrayMap<>(); |
| |
| void putSnapshot(Task task, GraphicBuffer snapshot) { |
| mCache.put(task, snapshot); |
| } |
| |
| @Nullable GraphicBuffer getSnapshot(Task task) { |
| return mCache.get(task); |
| } |
| } |