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Commit 25af92cd authored by Wei Sheng Shih's avatar Wei Sheng Shih Committed by Android (Google) Code Review
Browse files

Merge "Introduce ActivitySnapshotController(3/N)" into udc-dev

parents ba91e5b2 e74d7bf2

core/res/res/values/config.xml

+3 −0
Original line number Diff line number Diff line
@@ -3253,6 +3253,9 @@ 
    <!-- Feature flag to store TaskSnapshot in 16 bit pixel format to save memory. -->

    <bool name="config_use16BitTaskSnapshotPixelFormat">false</bool>



    <!-- The amount to scale fullscreen activity snapshot for predict-back animation. -->

    <item name="config_resActivitySnapshotScale" format="float" type="dimen">0.6</item>



    <!-- Determines whether recent tasks are provided to the user. Default device has recents

         property. If this is false, then the following recents config flags are ignored. -->

    <bool name="config_hasRecents">true</bool>

core/res/res/values/symbols.xml

+1 −0
Original line number Diff line number Diff line
@@ -362,6 +362,7 @@ 
  <java-symbol type="bool" name="config_disableUsbPermissionDialogs"/>

  <java-symbol type="dimen" name="config_highResTaskSnapshotScale" />

  <java-symbol type="dimen" name="config_lowResTaskSnapshotScale" />

  <java-symbol type="dimen" name="config_resActivitySnapshotScale" />

  <java-symbol type="dimen" name="config_qsTileStrokeWidthInactive" />

  <java-symbol type="dimen" name="config_qsTileStrokeWidthActive" />

  <java-symbol type="bool" name="config_use16BitTaskSnapshotPixelFormat" />

services/core/java/com/android/server/wm/AbsAppSnapshotController.java

+32 −12
Original line number Diff line number Diff line
@@ -55,8 +55,8 @@ import java.io.PrintWriter; 
 * @param <CACHE> The basic cache for either Task or ActivityRecord

 */

abstract class AbsAppSnapshotController<TYPE extends WindowContainer,

        CACHE extends AbsAppSnapshotCache<TYPE>> {

    private static final String TAG = TAG_WITH_CLASS_NAME ? "SnapshotController" : TAG_WM;

        CACHE extends SnapshotCache<TYPE>> {

    static final String TAG = TAG_WITH_CLASS_NAME ? "SnapshotController" : TAG_WM;

    /**

     * Return value for {@link #getSnapshotMode}: We are allowed to take a real screenshot to be

     * used as the snapshot.
@@ -76,7 +76,7 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
    static final int SNAPSHOT_MODE_NONE = 2;



    protected final WindowManagerService mService;

    protected final float mHighResTaskSnapshotScale;

    protected final float mHighResSnapshotScale;

    private final Rect mTmpRect = new Rect();

    /**

     * Flag indicating whether we are running on an Android TV device.
@@ -99,12 +99,13 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
                PackageManager.FEATURE_LEANBACK);

        mIsRunningOnIoT = mService.mContext.getPackageManager().hasSystemFeature(

                PackageManager.FEATURE_EMBEDDED);

        mHighResTaskSnapshotScale = initSnapshotScale();

        mHighResSnapshotScale = initSnapshotScale();

    }



    protected float initSnapshotScale() {

        return mService.mContext.getResources().getFloat(

        final float config = mService.mContext.getResources().getFloat(

                com.android.internal.R.dimen.config_highResTaskSnapshotScale);

        return Math.max(Math.min(config, 1f), 0.1f);

    }



    /**
@@ -173,7 +174,7 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
        final HardwareBuffer buffer = snapshot.getHardwareBuffer();

        if (buffer.getWidth() == 0 || buffer.getHeight() == 0) {

            buffer.close();

            Slog.e(TAG, "Invalid task snapshot dimensions " + buffer.getWidth() + "x"

            Slog.e(TAG, "Invalid snapshot dimensions " + buffer.getWidth() + "x"

                    + buffer.getHeight());

            return null;

        } else {
@@ -223,7 +224,7 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
        Point taskSize = new Point();

        Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "createSnapshot");

        final ScreenCapture.ScreenshotHardwareBuffer taskSnapshot = createSnapshot(source,

                mHighResTaskSnapshotScale, builder.getPixelFormat(), taskSize, builder);

                mHighResSnapshotScale, builder.getPixelFormat(), taskSize, builder);

        Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER);

        builder.setTaskSize(taskSize);

        return taskSnapshot;
@@ -397,11 +398,11 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
        final SnapshotDrawerUtils.SystemBarBackgroundPainter

                decorPainter = new SnapshotDrawerUtils.SystemBarBackgroundPainter(attrs.flags,

                attrs.privateFlags, attrs.insetsFlags.appearance, taskDescription,

                mHighResTaskSnapshotScale, mainWindow.getRequestedVisibleTypes());

                mHighResSnapshotScale, mainWindow.getRequestedVisibleTypes());

        final int taskWidth = taskBounds.width();

        final int taskHeight = taskBounds.height();

        final int width = (int) (taskWidth * mHighResTaskSnapshotScale);

        final int height = (int) (taskHeight * mHighResTaskSnapshotScale);

        final int width = (int) (taskWidth * mHighResSnapshotScale);

        final int height = (int) (taskHeight * mHighResSnapshotScale);

        final RenderNode node = RenderNode.create("SnapshotController", null);

        node.setLeftTopRightBottom(0, 0, width, height);

        node.setClipToBounds(false);
@@ -450,9 +451,28 @@ abstract class AbsAppSnapshotController<TYPE extends WindowContainer, 
        return 0;

    }



    /**

     * Called when an {@link ActivityRecord} has been removed.

     */

    void onAppRemoved(ActivityRecord activity) {

        mCache.onAppRemoved(activity);

    }



    /**

     * Called when the process of an {@link ActivityRecord} has died.

     */

    void onAppDied(ActivityRecord activity) {

        mCache.onAppDied(activity);

    }



    boolean isAnimatingByRecents(@NonNull Task task) {

        return task.isAnimatingByRecents()

                || mService.mAtmService.getTransitionController().inRecentsTransition(task);

    }



    void dump(PrintWriter pw, String prefix) {

        pw.println(prefix + "mHighResTaskSnapshotScale=" + mHighResTaskSnapshotScale);

        pw.println(prefix + "mTaskSnapshotEnabled=" + mSnapshotEnabled);

        pw.println(prefix + "mHighResSnapshotScale=" + mHighResSnapshotScale);

        pw.println(prefix + "mSnapshotEnabled=" + mSnapshotEnabled);

        mCache.dump(pw, prefix);

    }

}

services/core/java/com/android/server/wm/ActivityRecord.java

+15 −2
Original line number Diff line number Diff line
@@ -4223,7 +4223,8 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A 


        getDisplayContent().mOpeningApps.remove(this);

        getDisplayContent().mUnknownAppVisibilityController.appRemovedOrHidden(this);

        mWmService.mTaskSnapshotController.onAppRemoved(this);

        mWmService.mSnapshotController.onAppRemoved(this);



        mTaskSupervisor.getActivityMetricsLogger().notifyActivityRemoved(this);

        mTaskSupervisor.mStoppingActivities.remove(this);

        waitingToShow = false;
@@ -5557,7 +5558,7 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A 
                && !fromTransition) {

            // Take the screenshot before possibly hiding the WSA, otherwise the screenshot

            // will not be taken.

            mWmService.mTaskSnapshotController.notifyAppVisibilityChanged(this, visible);

            mWmService.mSnapshotController.notifyAppVisibilityChanged(this, visible);

        }



        // If we are hidden but there is no delay needed we immediately
@@ -10465,6 +10466,18 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A 
                && !inPinnedWindowingMode() && !inFreeformWindowingMode();

    }



    boolean canCaptureSnapshot() {

        if (!isSurfaceShowing() || findMainWindow() == null) {

            return false;

        }

        return forAllWindows(

                // Ensure at least one window for the top app is visible before attempting to

                // take a screenshot. Visible here means that the WSA surface is shown and has

                // an alpha greater than 0.

                ws -> ws.mWinAnimator != null && ws.mWinAnimator.getShown()

                        && ws.mWinAnimator.mLastAlpha > 0f, true  /* traverseTopToBottom */);

    }



    void overrideCustomTransition(boolean open, int enterAnim, int exitAnim, int backgroundColor) {

        CustomAppTransition transition = getCustomAnimation(open);

        if (transition == null) {

services/core/java/com/android/server/wm/ActivitySnapshotCache.java

0 → 100644
+40 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2022 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.server.wm;



import android.window.TaskSnapshot;



/**

 * A snapshot cache for activity, the token is the hashCode of the activity.

 */

class ActivitySnapshotCache extends SnapshotCache<ActivityRecord> {



    ActivitySnapshotCache(WindowManagerService service) {

        super(service, "Activity");

    }



    @Override

    void putSnapshot(ActivityRecord ar, TaskSnapshot snapshot) {

        final int hasCode = System.identityHashCode(ar);

        final CacheEntry entry = mRunningCache.get(hasCode);

        if (entry != null) {

            mAppIdMap.remove(entry.topApp);

        }

        mAppIdMap.put(ar, hasCode);

        mRunningCache.put(hasCode, new CacheEntry(snapshot, ar));

    }

}