Merge "Adding callback when surface params are applied" into qt-dev (0b4dea98) · Commits · e / os / android_frameworks_base

packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java

+58 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,9 @@ package com.android.systemui.shared.system;
		import android.graphics.HardwareRenderer;
		import android.graphics.Matrix;
		import android.graphics.Rect;
		import android.os.Handler;
		import android.os.Handler.Callback;
		import android.os.Message;
		import android.view.Surface;
		import android.view.View;
		import android.view.ViewRootImpl;
		@@ -33,8 +36,15 @@ import java.util.function.Consumer;
		*/
		public class SyncRtSurfaceTransactionApplierCompat {

		private static final int MSG_UPDATE_SEQUENCE_NUMBER = 0;

		private final Surface mTargetSurface;
		private final ViewRootImpl mTargetViewRootImpl;
		private final Handler mApplyHandler;

		private int mSequenceNumber = 0;
		private int mPendingSequenceNumber = 0;
		private Runnable mAfterApplyCallback;

		/**
		* @param targetView The view in the surface that acts as synchronization anchor.
		@@ -42,6 +52,26 @@ public class SyncRtSurfaceTransactionApplierCompat {
		public SyncRtSurfaceTransactionApplierCompat(View targetView) {
		mTargetViewRootImpl = targetView != null ? targetView.getViewRootImpl() : null;
		mTargetSurface = mTargetViewRootImpl != null ? mTargetViewRootImpl.mSurface : null;

		mApplyHandler = new Handler(new Callback() {
		@Override
		public boolean handleMessage(Message msg) {
		if (msg.what == MSG_UPDATE_SEQUENCE_NUMBER) {
		onApplyMessage(msg.arg1);
		return true;
		}
		return false;
		}
		});
		}

		private void onApplyMessage(int seqNo) {
		mSequenceNumber = seqNo;
		if (mSequenceNumber == mPendingSequenceNumber && mAfterApplyCallback != null) {
		Runnable r = mAfterApplyCallback;
		mAfterApplyCallback = null;
		r.run();
		}
		}

		/**
		@@ -54,10 +84,15 @@ public class SyncRtSurfaceTransactionApplierCompat {
		if (mTargetViewRootImpl == null \|\| mTargetViewRootImpl.getView() == null) {
		return;
		}

		mPendingSequenceNumber++;
		final int toApplySeqNo = mPendingSequenceNumber;
		mTargetViewRootImpl.registerRtFrameCallback(new HardwareRenderer.FrameDrawingCallback() {
		@Override
		public void onFrameDraw(long frame) {
		if (mTargetSurface == null \|\| !mTargetSurface.isValid()) {
		Message.obtain(mApplyHandler, MSG_UPDATE_SEQUENCE_NUMBER, toApplySeqNo, 0)
		.sendToTarget();
		return;
		}
		TransactionCompat t = new TransactionCompat();
		@@ -70,6 +105,7 @@ public class SyncRtSurfaceTransactionApplierCompat {
		}
		t.setEarlyWakeup();
		t.apply();
		mApplyHandler.sendEmptyMessage(toApplySeqNo);
		}
		});

		@@ -77,6 +113,28 @@ public class SyncRtSurfaceTransactionApplierCompat {
		mTargetViewRootImpl.getView().invalidate();
		}

		/**
		* Calls the runnable when any pending apply calls have completed
		*/
		public void addAfterApplyCallback(final Runnable afterApplyCallback) {
		if (mSequenceNumber == mPendingSequenceNumber) {
		afterApplyCallback.run();
		} else {
		if (mAfterApplyCallback == null) {
		mAfterApplyCallback = afterApplyCallback;
		} else {
		final Runnable oldCallback = mAfterApplyCallback;
		mAfterApplyCallback = new Runnable() {
		@Override
		public void run() {
		afterApplyCallback.run();
		oldCallback.run();
		}
		};
		}
		}
		}

		public static void applyParams(TransactionCompat t,
		SyncRtSurfaceTransactionApplierCompat.SurfaceParams params) {
		t.setMatrix(params.surface, params.matrix);