Merge "Fix VibratorService waveform accumulated delay" am: 02fe6c4bf8 (10fec2b5) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/VibratorService.java

+26 −24

Original line number	Diff line number	Diff line
		@@ -1589,13 +1589,11 @@ public class VibratorService extends IVibratorService.Stub
		mWakeLock.setWorkSource(mTmpWorkSource);
		}

		private long delayLocked(long duration) {
		private void delayLocked(long wakeUpTime) {
		Trace.traceBegin(Trace.TRACE_TAG_VIBRATOR, "delayLocked");
		try {
		long durationRemaining = duration;
		if (duration > 0) {
		final long bedtime = duration + SystemClock.uptimeMillis();
		do {
		long durationRemaining = wakeUpTime - SystemClock.uptimeMillis();
		while (durationRemaining > 0) {
		try {
		this.wait(durationRemaining);
		}
		@@ -1603,11 +1601,8 @@ public class VibratorService extends IVibratorService.Stub
		if (mForceStop) {
		break;
		}
		durationRemaining = bedtime - SystemClock.uptimeMillis();
		} while (durationRemaining > 0);
		return duration - durationRemaining;
		durationRemaining = wakeUpTime - SystemClock.uptimeMillis();
		}
		return 0;
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_VIBRATOR);
		}
		@@ -1641,7 +1636,8 @@ public class VibratorService extends IVibratorService.Stub
		final int repeat = mWaveform.getRepeatIndex();

		int index = 0;
		long onDuration = 0;
		long nextStepStartTime = SystemClock.uptimeMillis();
		long nextVibratorStopTime = 0;
		while (!mForceStop) {
		if (index < len) {
		final int amplitude = amplitudes[index];
		@@ -1650,25 +1646,31 @@ public class VibratorService extends IVibratorService.Stub
		continue;
		}
		if (amplitude != 0) {
		if (onDuration <= 0) {
		long now = SystemClock.uptimeMillis();
		if (nextVibratorStopTime <= now) {
		// Telling the vibrator to start multiple times usually causes
		// effects to feel "choppy" because the motor resets at every on
		// command. Instead we figure out how long our next "on" period
		// is going to be, tell the motor to stay on for the full
		// duration, and then wake up to change the amplitude at the
		// appropriate intervals.
		onDuration = getTotalOnDuration(timings, amplitudes, index - 1,
		repeat);
		long onDuration = getTotalOnDuration(
		timings, amplitudes, index - 1, repeat);
		doVibratorOn(onDuration, amplitude, mUid, mAttrs);
		nextVibratorStopTime = now + onDuration;
		} else {
		// Vibrator is already ON, so just change its amplitude.
		doVibratorSetAmplitude(amplitude);
		}
		}

		long waitTime = delayLocked(duration);
		if (amplitude != 0) {
		onDuration -= waitTime;
		}
		// We wait until the time this waveform step was supposed to end,
		// calculated from the time it was supposed to start. All start times
		// are calculated from the waveform original start time by adding the
		// input durations. Any scheduling or processing delay should not affect
		// this step's perceived total duration. They will be amortized here.
		nextStepStartTime += duration;
		delayLocked(nextStepStartTime);
		} else if (repeat < 0) {
		break;
		} else {