| /* |
| * Copyright (C) 2020 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.settings.development; |
| |
| import android.content.Context; |
| import android.hardware.display.DisplayManager; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.view.Display; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.development.DeveloperOptionsPreferenceController; |
| |
| public class ForcePeakRefreshRatePreferenceController extends DeveloperOptionsPreferenceController |
| implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { |
| |
| @VisibleForTesting |
| static float DEFAULT_REFRESH_RATE = 60f; |
| |
| @VisibleForTesting |
| static float NO_CONFIG = 0f; |
| |
| @VisibleForTesting |
| float mPeakRefreshRate; |
| |
| private static final String TAG = "ForcePeakRefreshRateCtr"; |
| private static final String PREFERENCE_KEY = "pref_key_peak_refresh_rate"; |
| |
| public ForcePeakRefreshRatePreferenceController(Context context) { |
| super(context); |
| |
| final DisplayManager dm = context.getSystemService(DisplayManager.class); |
| final Display display = dm.getDisplay(Display.DEFAULT_DISPLAY); |
| |
| if (display == null) { |
| Log.w(TAG, "No valid default display device"); |
| mPeakRefreshRate = DEFAULT_REFRESH_RATE; |
| } else { |
| mPeakRefreshRate = findPeakRefreshRate(display.getSupportedModes()); |
| } |
| |
| Log.d(TAG, "DEFAULT_REFRESH_RATE : " + DEFAULT_REFRESH_RATE |
| + " mPeakRefreshRate : " + mPeakRefreshRate); |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return PREFERENCE_KEY; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| final boolean isEnabled = (Boolean) newValue; |
| forcePeakRefreshRate(isEnabled); |
| |
| return true; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| ((SwitchPreference) mPreference).setChecked(isForcePeakRefreshRateEnabled()); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| if (mContext.getResources().getBoolean(R.bool.config_show_smooth_display)) { |
| return mPeakRefreshRate > DEFAULT_REFRESH_RATE; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| protected void onDeveloperOptionsSwitchDisabled() { |
| super.onDeveloperOptionsSwitchDisabled(); |
| Settings.System.putFloat(mContext.getContentResolver(), |
| Settings.System.MIN_REFRESH_RATE, NO_CONFIG); |
| |
| ((SwitchPreference) mPreference).setChecked(false); |
| } |
| |
| @VisibleForTesting |
| void forcePeakRefreshRate(boolean enable) { |
| final float peakRefreshRate = enable ? mPeakRefreshRate : NO_CONFIG; |
| Settings.System.putFloat(mContext.getContentResolver(), |
| Settings.System.MIN_REFRESH_RATE, peakRefreshRate); |
| } |
| |
| boolean isForcePeakRefreshRateEnabled() { |
| final float peakRefreshRate = Settings.System.getFloat(mContext.getContentResolver(), |
| Settings.System.MIN_REFRESH_RATE, NO_CONFIG); |
| |
| return peakRefreshRate >= mPeakRefreshRate; |
| } |
| |
| private float findPeakRefreshRate(Display.Mode[] modes) { |
| float peakRefreshRate = DEFAULT_REFRESH_RATE; |
| for (Display.Mode mode : modes) { |
| if (Math.round(mode.getRefreshRate()) > DEFAULT_REFRESH_RATE) { |
| peakRefreshRate = mode.getRefreshRate(); |
| } |
| } |
| |
| return peakRefreshRate; |
| } |
| } |