Choreographer: add more traces (d449b88e) · Commits · e / os / android_frameworks_base

core/java/android/view/Choreographer.java

+95 −74

Original line number	Diff line number	Diff line
		@@ -693,12 +693,23 @@ public final class Choreographer {
		ThreadedRenderer.setFPSDivisor(divisor);
		}

		private void traceMessage(String msg) {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW, msg);
		Trace.traceEnd(Trace.TRACE_TAG_VIEW);
		}

		void doFrame(long frameTimeNanos, int frame,
		DisplayEventReceiver.VsyncEventData vsyncEventData) {
		final long startNanos;
		final long frameIntervalNanos = vsyncEventData.frameInterval;
		try {
		if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW,
		"Choreographer#doFrame " + vsyncEventData.id);
		}
		synchronized (mLock) {
		if (!mFrameScheduled) {
		traceMessage("Frame not scheduled");
		return; // no work to do
		}

		@@ -733,6 +744,7 @@ public final class Choreographer {
		Log.d(TAG, "Frame time appears to be going backwards. May be due to a "
		+ "previously skipped frame. Waiting for next vsync.");
		}
		traceMessage("Frame time goes backward");
		scheduleVsyncLocked();
		return;
		}
		@@ -740,6 +752,7 @@ public final class Choreographer {
		if (mFPSDivisor > 1) {
		long timeSinceVsync = frameTimeNanos - mLastFrameTimeNanos;
		if (timeSinceVsync < (frameIntervalNanos * mFPSDivisor) && timeSinceVsync > 0) {
		traceMessage("Frame skipped due to FPSDivisor");
		scheduleVsyncLocked();
		return;
		}
		@@ -753,11 +766,6 @@ public final class Choreographer {
		mLastVsyncEventData = vsyncEventData;
		}

		try {
		if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW,
		"Choreographer#doFrame " + vsyncEventData.id);
		}
		AnimationUtils.lockAnimationClock(frameTimeNanos / TimeUtils.NANOS_PER_MS);

		mFrameInfo.markInputHandlingStart();
		@@ -870,7 +878,12 @@ public final class Choreographer {

		@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
		private void scheduleVsyncLocked() {
		try {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW, "Choreographer#scheduleVsyncLocked");
		mDisplayEventReceiver.scheduleVsync();
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_VIEW);
		}
		}

		private boolean isRunningOnLooperThreadLocked() {
		@@ -967,6 +980,11 @@ public final class Choreographer {
		@Override
		public void onVsync(long timestampNanos, long physicalDisplayId, int frame,
		VsyncEventData vsyncEventData) {
		try {
		if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW,
		"Choreographer#onVsync " + vsyncEventData.id);
		}
		// Post the vsync event to the Handler.
		// The idea is to prevent incoming vsync events from completely starving
		// the message queue. If there are no messages in the queue with timestamps
		@@ -993,6 +1011,9 @@ public final class Choreographer {
		Message msg = Message.obtain(mHandler, this);
		msg.setAsynchronous(true);
		mHandler.sendMessageAtTime(msg, timestampNanos / TimeUtils.NANOS_PER_MS);
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_VIEW);
		}
		}

		@Override