Merge "Add check for empty vsync data in Choreographer." into tm-dev (c2c8ac85) · Commits · e / os / android_frameworks_base

core/java/android/view/Choreographer.java

+17 −11

Original line number	Diff line number	Diff line
		@@ -765,18 +765,24 @@ public final class Choreographer {
		startNanos = System.nanoTime();
		final long jitterNanos = startNanos - frameTimeNanos;
		if (jitterNanos >= frameIntervalNanos) {
		final long lastFrameOffset = jitterNanos % frameIntervalNanos;
		if (frameIntervalNanos == 0) {
		Log.i(TAG, "Vsync data empty due to timeout");
		} else {
		final long skippedFrames = jitterNanos / frameIntervalNanos;
		if (skippedFrames >= SKIPPED_FRAME_WARNING_LIMIT) {
		Log.i(TAG, "Skipped " + skippedFrames + " frames! "
		+ "The application may be doing too much work on its main thread.");
		+ "The application may be doing too much work on its main "
		+ "thread.");
		}
		final long lastFrameOffset = jitterNanos % frameIntervalNanos;
		if (DEBUG_JANK) {
		Log.d(TAG, "Missed vsync by " + (jitterNanos * 0.000001f) + " ms "
		+ "which is more than the frame interval of "
		+ (frameIntervalNanos * 0.000001f) + " ms! "
		+ "Skipping " + skippedFrames + " frames and setting frame "
		+ "time to " + (lastFrameOffset * 0.000001f) + " ms in the past.");
		+ "time to " + (lastFrameOffset * 0.000001f)
		+ " ms in the past.");
		}
		}
		frameTimeNanos = startNanos - lastFrameOffset;
		DisplayEventReceiver.VsyncEventData latestVsyncEventData =