Prevent showing windows while animating to avoid color mode switch
If we switch the color mode during a transition, it's pretty much
guaranteed that SF is going to jank. To work around that, we
disallow showing the real content while an activity with a
non-standard-color mode is animating.
Test: Reopen photos, observe no jank
Bug: 79878256
Change-Id: Id27db483844d9424ccfb9afdebd31325eae0cdd8
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 08d0ae9..fa6079c 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -19,6 +19,7 @@
import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
+import static android.content.pm.ActivityInfo.COLOR_MODE_DEFAULT;
import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_BEHIND;
@@ -1377,7 +1378,7 @@
setAppLayoutChanges(FINISH_LAYOUT_REDO_ANIM, "checkAppWindowsReadyToShow");
// We can now show all of the drawn windows!
- if (!mService.mOpeningApps.contains(this)) {
+ if (!mService.mOpeningApps.contains(this) && canShowWindows()) {
showAllWindowsLocked();
}
}
@@ -2270,4 +2271,21 @@
boolean isClosingOrEnteringPip() {
return (isAnimating() && hiddenRequested) || mWillCloseOrEnterPip;
}
+
+ /**
+ * @return Whether we are allowed to show non-starting windows at the moment. We disallow
+ * showing windows during transitions in case we have windows that have wide-color-gamut
+ * color mode set to avoid jank in the middle of the transition.
+ */
+ boolean canShowWindows() {
+ return allDrawn && !(isReallyAnimating() && hasNonDefaultColorWindow());
+ }
+
+ /**
+ * @return true if we have a window that has a non-default color mode set; false otherwise.
+ */
+ private boolean hasNonDefaultColorWindow() {
+ return forAllWindows(ws -> ws.mAttrs.getColorMode() != COLOR_MODE_DEFAULT,
+ true /* topToBottom */);
+ }
}
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index cfbcd17..47dbccb 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -404,7 +404,7 @@
WindowStateAnimator winAnimator = w.mWinAnimator;
final AppWindowToken atoken = w.mAppToken;
if (winAnimator.mDrawState == READY_TO_SHOW) {
- if (atoken == null || atoken.allDrawn) {
+ if (atoken == null || atoken.canShowWindows()) {
if (w.performShowLocked()) {
pendingLayoutChanges |= FINISH_LAYOUT_REDO_ANIM;
if (DEBUG_LAYOUT_REPEATS) {
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index 0b50802..a05e04d 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -41,11 +41,11 @@
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
import static com.android.server.wm.WindowManagerService.TYPE_LAYER_MULTIPLIER;
import static com.android.server.wm.WindowManagerService.logWithStack;
-import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
import static com.android.server.wm.WindowStateAnimatorProto.DRAW_STATE;
import static com.android.server.wm.WindowStateAnimatorProto.LAST_CLIP_RECT;
import static com.android.server.wm.WindowStateAnimatorProto.SURFACE;
import static com.android.server.wm.WindowStateAnimatorProto.SYSTEM_DECOR_RECT;
+import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
import static com.android.server.wm.utils.CoordinateTransforms.transformToRotation;
import android.content.Context;
@@ -366,7 +366,8 @@
mDrawState = READY_TO_SHOW;
boolean result = false;
final AppWindowToken atoken = mWin.mAppToken;
- if (atoken == null || atoken.allDrawn || mWin.mAttrs.type == TYPE_APPLICATION_STARTING) {
+ if (atoken == null || atoken.canShowWindows()
+ || mWin.mAttrs.type == TYPE_APPLICATION_STARTING) {
result = mWin.performShowLocked();
}
return result;