| /* |
| * Copyright (C) 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 com.android.server.wm; |
| |
| import static android.hardware.display.DisplayManager.DeviceConfig.KEY_HIGH_REFRESH_RATE_BLACKLIST; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.res.Resources; |
| import android.provider.DeviceConfig; |
| import android.util.ArraySet; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.os.BackgroundThread; |
| |
| import java.io.PrintWriter; |
| import java.util.concurrent.Executor; |
| |
| /** |
| * A Blacklist for packages that should force the display out of high refresh rate. |
| */ |
| class HighRefreshRateBlacklist { |
| |
| private final ArraySet<String> mBlacklistedPackages = new ArraySet<>(); |
| @NonNull |
| private final String[] mDefaultBlacklist; |
| private final Object mLock = new Object(); |
| |
| private DeviceConfigInterface mDeviceConfig; |
| private OnPropertiesChangedListener mListener = new OnPropertiesChangedListener(); |
| |
| static HighRefreshRateBlacklist create(@NonNull Resources r) { |
| return new HighRefreshRateBlacklist(r, new DeviceConfigInterface() { |
| @Override |
| public @Nullable String getProperty(@NonNull String namespace, @NonNull String name) { |
| return DeviceConfig.getProperty(namespace, name); |
| } |
| |
| @Override |
| public void addOnPropertiesChangedListener(@NonNull String namespace, |
| @NonNull Executor executor, |
| @NonNull DeviceConfig.OnPropertiesChangedListener listener) { |
| DeviceConfig.addOnPropertiesChangedListener(namespace, executor, listener); |
| } |
| |
| @Override |
| public void removePropertiesChangedListener( |
| DeviceConfig.OnPropertiesChangedListener listener) { |
| DeviceConfig.removeOnPropertiesChangedListener(listener); |
| } |
| }); |
| } |
| |
| @VisibleForTesting |
| HighRefreshRateBlacklist(Resources r, DeviceConfigInterface deviceConfig) { |
| mDefaultBlacklist = r.getStringArray(R.array.config_highRefreshRateBlacklist); |
| mDeviceConfig = deviceConfig; |
| mDeviceConfig.addOnPropertiesChangedListener(DeviceConfig.NAMESPACE_DISPLAY_MANAGER, |
| BackgroundThread.getExecutor(), mListener); |
| final String property = mDeviceConfig.getProperty(DeviceConfig.NAMESPACE_DISPLAY_MANAGER, |
| KEY_HIGH_REFRESH_RATE_BLACKLIST); |
| updateBlacklist(property); |
| } |
| |
| private void updateBlacklist(@Nullable String property) { |
| synchronized (mLock) { |
| mBlacklistedPackages.clear(); |
| if (property != null) { |
| String[] packages = property.split(","); |
| for (String pkg : packages) { |
| String pkgName = pkg.trim(); |
| if (!pkgName.isEmpty()) { |
| mBlacklistedPackages.add(pkgName); |
| } |
| } |
| } else { |
| // If there's no config, or the config has been deleted, fallback to the device's |
| // default blacklist |
| for (String pkg : mDefaultBlacklist) { |
| mBlacklistedPackages.add(pkg); |
| } |
| } |
| } |
| } |
| |
| boolean isBlacklisted(String packageName) { |
| synchronized (mLock) { |
| return mBlacklistedPackages.contains(packageName); |
| } |
| } |
| void dump(PrintWriter pw) { |
| pw.println("High Refresh Rate Blacklist"); |
| pw.println(" Packages:"); |
| synchronized (mLock) { |
| for (String pkg : mBlacklistedPackages) { |
| pw.println(" " + pkg); |
| } |
| } |
| } |
| |
| /** Used to prevent WmTests leaking issues. */ |
| @VisibleForTesting |
| void dispose() { |
| mDeviceConfig.removePropertiesChangedListener(mListener); |
| mDeviceConfig = null; |
| mBlacklistedPackages.clear(); |
| } |
| |
| interface DeviceConfigInterface { |
| @Nullable String getProperty(@NonNull String namespace, @NonNull String name); |
| void addOnPropertiesChangedListener(@NonNull String namespace, @NonNull Executor executor, |
| @NonNull DeviceConfig.OnPropertiesChangedListener listener); |
| void removePropertiesChangedListener( |
| @NonNull DeviceConfig.OnPropertiesChangedListener listener); |
| } |
| |
| private class OnPropertiesChangedListener implements DeviceConfig.OnPropertiesChangedListener { |
| public void onPropertiesChanged(@NonNull DeviceConfig.Properties properties) { |
| updateBlacklist( |
| properties.getString(KEY_HIGH_REFRESH_RATE_BLACKLIST, null /*default*/)); |
| } |
| } |
| } |
| |