diff --git a/libs/WindowManager/Shell/Android.bp b/libs/WindowManager/Shell/Android.bp
index 9aaef3b..3ba1a34 100644
--- a/libs/WindowManager/Shell/Android.bp
+++ b/libs/WindowManager/Shell/Android.bp
@@ -39,6 +39,14 @@
 }
 
 filegroup {
+    name: "wm_shell_util-sources",
+    srcs: [
+        "src/com/android/wm/shell/util/**/*.java",
+    ],
+    path: "src",
+}
+
+filegroup {
     name: "wm_shell-aidls",
     srcs: [
         "src/**/*.aidl",
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
index b673d48..663d647 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
@@ -41,6 +41,7 @@
 import static android.window.TransitionInfo.FLAG_SHOW_WALLPAPER;
 import static android.window.TransitionInfo.FLAG_STARTING_WINDOW_TRANSFER_RECIPIENT;
 import static android.window.TransitionInfo.FLAG_TRANSLUCENT;
+import static android.window.TransitionInfo.isIndependent;
 
 import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_CLOSE;
 import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_INTRA_CLOSE;
@@ -70,6 +71,7 @@
 import android.view.animation.Transformation;
 import android.window.TransitionInfo;
 import android.window.TransitionRequestInfo;
+import android.window.WindowContainerToken;
 import android.window.WindowContainerTransaction;
 
 import com.android.internal.R;
@@ -82,6 +84,7 @@
 import com.android.wm.shell.common.ShellExecutor;
 import com.android.wm.shell.common.TransactionPool;
 import com.android.wm.shell.protolog.ShellProtoLogGroup;
+import com.android.wm.shell.util.CounterRotator;
 
 import java.util.ArrayList;
 
@@ -269,9 +272,16 @@
         final ArrayList<Animator> animations = new ArrayList<>();
         mAnimations.put(transition, animations);
 
+        final ArrayMap<WindowContainerToken, CounterRotator> counterRotators = new ArrayMap<>();
+
         final Runnable onAnimFinish = () -> {
             if (!animations.isEmpty()) return;
 
+            for (int i = 0; i < counterRotators.size(); ++i) {
+                counterRotators.valueAt(i).cleanUp(info.getRootLeash());
+            }
+            counterRotators.clear();
+
             if (mRotationAnimation != null) {
                 mRotationAnimation.kill();
                 mRotationAnimation = null;
@@ -285,16 +295,44 @@
         for (int i = info.getChanges().size() - 1; i >= 0; --i) {
             final TransitionInfo.Change change = info.getChanges().get(i);
 
-            if (info.getType() == TRANSIT_CHANGE && change.getMode() == TRANSIT_CHANGE
-                    && (change.getFlags() & FLAG_IS_DISPLAY) != 0) {
-                boolean isSeamless = isRotationSeamless(info, mDisplayController);
-                final int anim = getRotationAnimation(info);
-                if (!(isSeamless || anim == ROTATION_ANIMATION_JUMPCUT)) {
-                    mRotationAnimation = new ScreenRotationAnimation(mContext, mSurfaceSession,
-                            mTransactionPool, startTransaction, change, info.getRootLeash());
-                    mRotationAnimation.startAnimation(animations, onAnimFinish,
-                            mTransitionAnimationScaleSetting, mMainExecutor, mAnimExecutor);
-                    continue;
+            if (change.getMode() == TRANSIT_CHANGE && (change.getFlags() & FLAG_IS_DISPLAY) != 0) {
+                int rotateDelta = change.getEndRotation() - change.getStartRotation();
+                int displayW = change.getEndAbsBounds().width();
+                int displayH = change.getEndAbsBounds().height();
+                if (info.getType() == TRANSIT_CHANGE) {
+                    boolean isSeamless = isRotationSeamless(info, mDisplayController);
+                    final int anim = getRotationAnimation(info);
+                    if (!(isSeamless || anim == ROTATION_ANIMATION_JUMPCUT)) {
+                        mRotationAnimation = new ScreenRotationAnimation(mContext, mSurfaceSession,
+                                mTransactionPool, startTransaction, change, info.getRootLeash());
+                        mRotationAnimation.startAnimation(animations, onAnimFinish,
+                                mTransitionAnimationScaleSetting, mMainExecutor, mAnimExecutor);
+                        continue;
+                    }
+                } else {
+                    // opening/closing an app into a new orientation. Counter-rotate all
+                    // "going-away" things since they are still in the old orientation.
+                    for (int j = info.getChanges().size() - 1; j >= 0; --j) {
+                        final TransitionInfo.Change innerChange = info.getChanges().get(j);
+                        if (!Transitions.isClosingType(innerChange.getMode())
+                                || !isIndependent(innerChange, info)
+                                || innerChange.getParent() == null) {
+                            continue;
+                        }
+                        CounterRotator crot = counterRotators.get(innerChange.getParent());
+                        if (crot == null) {
+                            crot = new CounterRotator();
+                            crot.setup(startTransaction,
+                                    info.getChange(innerChange.getParent()).getLeash(),
+                                    rotateDelta, displayW, displayH);
+                            if (crot.getSurface() != null) {
+                                int layer = info.getChanges().size() - j;
+                                startTransaction.setLayer(crot.getSurface(), layer);
+                            }
+                            counterRotators.put(innerChange.getParent(), crot);
+                        }
+                        crot.addChild(startTransaction, innerChange.getLeash());
+                    }
                 }
             }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/util/CounterRotator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/util/CounterRotator.java
new file mode 100644
index 0000000..b9b6716
--- /dev/null
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/util/CounterRotator.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.util;
+
+import android.view.SurfaceControl;
+
+import java.util.ArrayList;
+
+/**
+ * Utility class that takes care of counter-rotating surfaces during a transition animation.
+ */
+public class CounterRotator {
+    SurfaceControl mSurface = null;
+    ArrayList<SurfaceControl> mRotateChildren = null;
+
+    /** Gets the surface with the counter-rotation. */
+    public SurfaceControl getSurface() {
+        return mSurface;
+    }
+
+    /**
+     * Sets up this rotator.
+     *
+     * @param rotateDelta is the forward rotation change (the rotation the display is making).
+     * @param displayW (and H) Is the size of the rotating display.
+     */
+    public void setup(SurfaceControl.Transaction t, SurfaceControl parent, int rotateDelta,
+            float displayW, float displayH) {
+        if (rotateDelta == 0) return;
+        mRotateChildren = new ArrayList<>();
+        // We want to counter-rotate, so subtract from 4
+        rotateDelta = 4 - (rotateDelta + 4) % 4;
+        mSurface = new SurfaceControl.Builder()
+                .setName("Transition Unrotate")
+                .setContainerLayer()
+                .setParent(parent)
+                .build();
+        // column-major
+        if (rotateDelta == 1) {
+            t.setMatrix(mSurface, 0, 1, -1, 0);
+            t.setPosition(mSurface, displayW, 0);
+        } else if (rotateDelta == 2) {
+            t.setMatrix(mSurface, -1, 0, 0, -1);
+            t.setPosition(mSurface, displayW, displayH);
+        } else if (rotateDelta == 3) {
+            t.setMatrix(mSurface, 0, -1, 1, 0);
+            t.setPosition(mSurface, 0, displayH);
+        }
+        t.show(mSurface);
+    }
+
+    /**
+     * Add a surface that needs to be counter-rotate.
+     */
+    public void addChild(SurfaceControl.Transaction t, SurfaceControl child) {
+        if (mSurface == null) return;
+        t.reparent(child, mSurface);
+        mRotateChildren.add(child);
+    }
+
+    /**
+     * Clean-up. This undoes any reparenting and effectively stops the counter-rotation.
+     */
+    public void cleanUp(SurfaceControl rootLeash) {
+        if (mSurface == null) return;
+        SurfaceControl.Transaction t = new SurfaceControl.Transaction();
+        for (int i = mRotateChildren.size() - 1; i >= 0; --i) {
+            t.reparent(mRotateChildren.get(i), rootLeash);
+        }
+        t.remove(mSurface);
+        t.apply();
+    }
+}