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Commit 97a73606 authored by Joe LaPenna's avatar Joe LaPenna Committed by Android Git Automerger
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am e59f4260: am 1f956e42: Merge "Make burn in protection updates happen on the... 

am e59f4260: am 1f956e42: Merge "Make burn in protection updates happen on the minute." into lmp-mr1-modular-dev

* commit 'e59f4260':
  Make burn in protection updates happen on the minute.
parents 66d94512 e59f4260

policy/src/com/android/internal/policy/impl/BurnInProtectionHelper.java

+24 −4
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ import android.content.IntentFilter; 
import android.hardware.display.DisplayManager;

import android.hardware.display.DisplayManagerInternal;

import android.os.SystemClock;

import android.util.Slog;

import android.view.Display;

import android.view.animation.LinearInterpolator;
@@ -29,6 +30,8 @@ public class BurnInProtectionHelper implements DisplayManager.DisplayListener, 
    private static final long BURNIN_PROTECTION_WAKEUP_INTERVAL_MS = TimeUnit.MINUTES.toMillis(1);

    private static final long BURNIN_PROTECTION_MINIMAL_INTERVAL_MS = TimeUnit.SECONDS.toMillis(10);



    private static final boolean DEBUG = false;



    private static final String ACTION_BURN_IN_PROTECTION =

            "android.internal.policy.action.BURN_IN_PROTECTION";
@@ -61,6 +64,9 @@ public class BurnInProtectionHelper implements DisplayManager.DisplayListener, 
    private BroadcastReceiver mBurnInProtectionReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {

            if (DEBUG) {

                Slog.d(TAG, "onReceive " + intent);

            }

            updateBurnInProtection();

        }

    };
@@ -120,12 +126,26 @@ public class BurnInProtectionHelper implements DisplayManager.DisplayListener, 
                mDisplayManagerInternal.setDisplayOffsets(mDisplay.getDisplayId(),

                        mLastBurnInXOffset, mLastBurnInYOffset);

            }

            // We use currentTimeMillis to compute the next wakeup time since we want to wake up at

            // the same time as we wake up to update ambient mode to minimize power consumption.

            // However, we use elapsedRealtime to schedule the alarm so that setting the time can't

            // disable burn-in protection for extended periods.

            final long nowWall = System.currentTimeMillis();

            final long nowElapsed = SystemClock.elapsedRealtime();

            // Next adjustment at least ten seconds in the future.

            long next = SystemClock.elapsedRealtime() + BURNIN_PROTECTION_MINIMAL_INTERVAL_MS;

            long nextWall = nowWall + BURNIN_PROTECTION_MINIMAL_INTERVAL_MS;

            // And aligned to the minute.

            next = next - next % BURNIN_PROTECTION_WAKEUP_INTERVAL_MS

            nextWall = nextWall - nextWall % BURNIN_PROTECTION_WAKEUP_INTERVAL_MS

                    + BURNIN_PROTECTION_WAKEUP_INTERVAL_MS;

            mAlarmManager.set(AlarmManager.ELAPSED_REALTIME, next, mBurnInProtectionIntent);

            // Use elapsed real time that is adjusted to full minute on wall clock.

            final long nextElapsed = nowElapsed + (nextWall - nowWall);

            if (DEBUG) {

                Slog.d(TAG, "scheduling next wake-up, now wall time " + nowWall

                        + ", next wall: " + nextWall + ", now elapsed: " + nowElapsed

                        + ", next elapsed: " + nextElapsed);

            }

            mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME, nextElapsed,

                    mBurnInProtectionIntent);

        } else {

            mAlarmManager.cancel(mBurnInProtectionIntent);

            mCenteringAnimator.start();