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/*
* Copyright (C) 2012 The CyanogenMod 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.cyanogenmod.settings.device;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceManager;
public class GpuOverclock implements OnPreferenceChangeListener {
private static final String FILE = "/sys/devices/system/cpu/cpu0/cpufreq/gpu_oc";
public static boolean isSupported() {
return Utils.fileExists(FILE);
}
public static void restore(Context context) {
if (!isSupported()) {
return;
}
SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
Utils.writeValue(FILE, sharedPrefs.getString(DevicePreferenceActivity.KEY_GPU_OVERCLOCK, "0"));
}
public boolean onPreferenceChange(Preference preference, Object newValue) {
Utils.writeValue(FILE, (String) newValue);
updateSummary((ListPreference) preference, Integer.parseInt(newValue.toString()));
return true;
}
public static void updateSummary(ListPreference preference, int value) {
final CharSequence[] entries = preference.getEntries();
final CharSequence[] values = preference.getEntryValues();
int best = 0;
for (int i = 0; i < values.length; i++) {
int summaryValue = Integer.parseInt(values[i].toString());
if (value >= summaryValue) {
best = i;
}
}
preference.setSummary(entries[best].toString());
}
}
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