Make wake-and-unlock faster

- Scrims: When dismissing Keyguard, don't wait until the next frame
to start the animation. Saves 16ms
- Scrims: Skip first frame, because it's completely black anyways.
Saves 16ms.
- Don't wait with navigation bar to show until the screen has turned
on. Window manager is blocked on DisplayPowerController anyways, so
the animation will exactly be started when the screen turns on. Fixes
some jank as well.
- Window manager: Don't wait for the window below Keyguard for draw
completion until turning on screen. Saves a lot of time depending on
how the app is behaving.

Bug: 23401557
Change-Id: I9734f9a12143f0e3c0647e9aa066831a29a6de63

5 files changed, 39 insertions, 21 deletions

diff --git a/packages/SystemUI/res/anim/navbar_fade_in.xml b/packages/SystemUI/res/anim/navbar_fade_in.xml
index e3429e6..7051730 100644
--- a/packages/SystemUI/res/anim/navbar_fade_in.xml
+++ b/packages/SystemUI/res/anim/navbar_fade_in.xml
@@ -19,4 +19,5 @@
     android:fromAlpha="0.0"
     android:toAlpha="1.0"
     android:interpolator="@android:interpolator/linear_out_slow_in"
+    android:startDelay="32"
     android:duration="200"/>
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index 89f0071..649dad3 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -3441,7 +3441,8 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
                 .alpha(0f)
                 .setStartDelay(0)
                 .setDuration(FADE_KEYGUARD_DURATION_PULSING)
-                .setInterpolator(ScrimController.KEYGUARD_FADE_OUT_INTERPOLATOR);
+                .setInterpolator(ScrimController.KEYGUARD_FADE_OUT_INTERPOLATOR)
+                .start();
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index 5b009ee..cc6f396 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -22,7 +22,6 @@ import android.animation.PropertyValuesHolder;
 import android.animation.ValueAnimator;
 import android.content.Context;
 import android.graphics.Color;
-import android.util.Log;
 import android.view.View;
 import android.view.ViewTreeObserver;
 import android.view.animation.DecelerateInterpolator;
@@ -87,6 +86,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
     private float mTopHeadsUpDragAmount;
     private View mDraggedHeadsUpView;
     private boolean mForceHideScrims;
+    private boolean mSkipFirstFrame;
 
     public ScrimController(ScrimView scrimBehind, ScrimView scrimInFront, View headsUpScrim,
             boolean scrimSrcEnabled) {
@@ -134,14 +134,20 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
         scheduleUpdate();
     }
 
-    public void animateKeyguardFadingOut(long delay, long duration, Runnable onAnimationFinished) {
+    public void animateKeyguardFadingOut(long delay, long duration, Runnable onAnimationFinished,
+            boolean skipFirstFrame) {
         mWakeAndUnlocking = false;
         mAnimateKeyguardFadingOut = true;
         mDurationOverride = duration;
         mAnimationDelay = delay;
         mAnimateChange = true;
+        mSkipFirstFrame = skipFirstFrame;
         mOnAnimationFinished = onAnimationFinished;
         scheduleUpdate();
+
+        // No need to wait for the next frame to be drawn for this case - onPreDraw will execute
+        // the changes we just scheduled.
+        onPreDraw();
     }
 
     public void abortKeyguardFadingOut() {
@@ -339,6 +345,9 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
             }
         });
         anim.start();
+        if (mSkipFirstFrame) {
+            anim.setCurrentPlayTime(16);
+        }
         scrim.setTag(TAG_KEY_ANIM, anim);
         scrim.setTag(TAG_KEY_ANIM_TARGET, target);
     }
@@ -354,6 +363,7 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener,
         updateScrims();
         mDurationOverride = -1;
         mAnimationDelay = 0;
+        mSkipFirstFrame = false;
 
         // Make sure that we always call the listener even if we didn't start an animation.
         endAnimateKeyguardFadingOut(false /* force */);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
index 7e83f26..59ee5c5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
@@ -74,7 +74,6 @@ public class StatusBarKeyguardViewManager {
     private boolean mLastOccluded;
     private boolean mLastBouncerShowing;
     private boolean mLastBouncerDismissible;
-    private boolean mLastDeferScrimFadeOut;
     private OnDismissAction mAfterKeyguardGoneAction;
     private boolean mDeviceWillWakeUp;
     private boolean mDeferScrimFadeOut;
@@ -184,7 +183,8 @@ public class StatusBarKeyguardViewManager {
         mScreenTurnedOn = true;
         if (mDeferScrimFadeOut) {
             mDeferScrimFadeOut = false;
-            animateScrimControllerKeyguardFadingOut(0, WAKE_AND_UNLOCK_SCRIM_FADEOUT_DURATION_MS);
+            animateScrimControllerKeyguardFadingOut(0, WAKE_AND_UNLOCK_SCRIM_FADEOUT_DURATION_MS,
+                    true /* skipFirstFrame */);
             updateStates();
         }
         mPhoneStatusBar.onScreenTurnedOn();
@@ -264,7 +264,8 @@ public class StatusBarKeyguardViewManager {
                     updateStates();
                     mScrimController.animateKeyguardFadingOut(
                             PhoneStatusBar.FADE_KEYGUARD_START_DELAY,
-                            PhoneStatusBar.FADE_KEYGUARD_DURATION, null);
+                            PhoneStatusBar.FADE_KEYGUARD_DURATION, null,
+                            false /* skipFirstFrame */);
                 }
             }, new Runnable() {
                 @Override
@@ -287,7 +288,7 @@ public class StatusBarKeyguardViewManager {
                     public void run() {
                         mPhoneStatusBar.hideKeyguard();
                     }
-                });
+                }, false /* skipFirstFrame */);
             } else {
                 mFingerprintUnlockController.startKeyguardFadingAway();
                 mPhoneStatusBar.setKeyguardFadingAway(startTime, delay, fadeoutDuration);
@@ -302,10 +303,12 @@ public class StatusBarKeyguardViewManager {
 
                             // Screen is already on, don't defer with fading out.
                             animateScrimControllerKeyguardFadingOut(0,
-                                    WAKE_AND_UNLOCK_SCRIM_FADEOUT_DURATION_MS);
+                                    WAKE_AND_UNLOCK_SCRIM_FADEOUT_DURATION_MS,
+                                    true /* skipFirstFrame */);
                         }
                     } else {
-                        animateScrimControllerKeyguardFadingOut(delay, fadeoutDuration);
+                        animateScrimControllerKeyguardFadingOut(delay, fadeoutDuration,
+                                false /* skipFirstFrame */);
                     }
                 } else {
                     mScrimController.animateGoingToFullShade(delay, fadeoutDuration);
@@ -320,12 +323,14 @@ public class StatusBarKeyguardViewManager {
         }
     }
 
-    private void animateScrimControllerKeyguardFadingOut(long delay, long duration) {
-        animateScrimControllerKeyguardFadingOut(delay, duration, null /* endRunnable */);
+    private void animateScrimControllerKeyguardFadingOut(long delay, long duration,
+            boolean skipFirstFrame) {
+        animateScrimControllerKeyguardFadingOut(delay, duration, null /* endRunnable */,
+                skipFirstFrame);
     }
 
     private void animateScrimControllerKeyguardFadingOut(long delay, long duration,
-            final Runnable endRunnable) {
+            final Runnable endRunnable, boolean skipFirstFrame) {
         Trace.asyncTraceBegin(Trace.TRACE_TAG_VIEW, "Fading out", 0);
         mScrimController.animateKeyguardFadingOut(delay, duration, new Runnable() {
             @Override
@@ -340,7 +345,7 @@ public class StatusBarKeyguardViewManager {
                         ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN);
                 Trace.asyncTraceEnd(Trace.TRACE_TAG_VIEW, "Fading out", 0);
             }
-        });
+        }, skipFirstFrame);
     }
 
     private void executeAfterKeyguardGoneAction() {
@@ -414,7 +419,6 @@ public class StatusBarKeyguardViewManager {
         boolean occluded = mOccluded;
         boolean bouncerShowing = mBouncer.isShowing();
         boolean bouncerDismissible = !mBouncer.isFullscreenBouncer();
-        boolean deferScrimFadeOut = mDeferScrimFadeOut;
 
         if ((bouncerDismissible || !showing) != (mLastBouncerDismissible || !mLastShowing)
                 || mFirstUpdate) {
@@ -425,11 +429,8 @@ public class StatusBarKeyguardViewManager {
             }
         }
 
-        // Hide navigation bar on Keyguard but not on bouncer and also if we are deferring a scrim
-        // fade out, i.e. we are waiting for the screen to have turned on.
-        boolean navBarVisible = !deferScrimFadeOut && (!(showing && !occluded) || bouncerShowing);
-        boolean lastNavBarVisible = !mLastDeferScrimFadeOut && (!(mLastShowing && !mLastOccluded)
-                || mLastBouncerShowing);
+        boolean navBarVisible = (!(showing && !occluded) || bouncerShowing);
+        boolean lastNavBarVisible = (!(mLastShowing && !mLastOccluded) || mLastBouncerShowing);
         if (navBarVisible != lastNavBarVisible || mFirstUpdate) {
             if (mPhoneStatusBar.getNavigationBarView() != null) {
                 if (navBarVisible) {
@@ -464,7 +465,6 @@ public class StatusBarKeyguardViewManager {
         mFirstUpdate = false;
         mLastShowing = showing;
         mLastOccluded = occluded;
-        mLastDeferScrimFadeOut = deferScrimFadeOut;
         mLastBouncerShowing = bouncerShowing;
         mLastBouncerDismissible = bouncerDismissible;
 
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index bc5ef36..ee1149e 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -11952,12 +11952,18 @@ public class WindowManagerService extends IWindowManager.Stub
                 final WindowList windows = getDefaultWindowListLocked();
                 for (int winNdx = windows.size() - 1; winNdx >= 0; --winNdx) {
                     final WindowState win = windows.get(winNdx);
+                    final boolean isForceHiding = mPolicy.isForceHiding(win.mAttrs);
                     if (win.isVisibleLw()
-                            && (win.mAppToken != null || mPolicy.isForceHiding(win.mAttrs))) {
+                            && (win.mAppToken != null || isForceHiding)) {
                         win.mWinAnimator.mDrawState = WindowStateAnimator.DRAW_PENDING;
                         // Force add to mResizingWindows.
                         win.mLastContentInsets.set(-1, -1, -1, -1);
                         mWaitingForDrawn.add(win);
+
+                        // No need to wait for the windows below Keyguard.
+                        if (isForceHiding) {
+                            break;
+                        }
                     }
                 }
                 requestTraversalLocked();