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Commit 78fd5810 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Automerger Merge Worker
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Merge "Camera: Connect activity resizing state to camera service" into sc-dev am: cd5c6bc6 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13536565

Change-Id: Icd5ddb6626580b17c57ce7af687010bc70a4c3fa
parents c84d1f8c cd5c6bc6

services/core/java/com/android/server/camera/CameraServiceProxy.java

+179 −0
Original line number Diff line number Diff line
@@ -15,17 +15,33 @@ 
 */

package com.android.server.camera;



import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;

import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;

import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;

import static android.os.Build.VERSION_CODES.M;



import android.annotation.IntDef;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.app.ActivityManager;

import android.app.ActivityTaskManager;

import android.app.TaskStackListener;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.pm.ActivityInfo;

import android.content.pm.ApplicationInfo;

import android.content.pm.PackageManager;

import android.content.res.Configuration;

import android.graphics.Rect;

import android.hardware.CameraSessionStats;

import android.hardware.CameraStreamStats;

import android.hardware.ICameraService;

import android.hardware.ICameraServiceProxy;

import android.hardware.camera2.CameraMetadata;

import android.hardware.display.DisplayManager;

import android.media.AudioManager;

import android.metrics.LogMaker;

import android.nfc.INfcAdapter;
@@ -41,7 +57,10 @@ import android.os.UserManager; 
import android.stats.camera.nano.CameraProtos.CameraStreamProto;

import android.util.ArrayMap;

import android.util.ArraySet;

import android.util.Log;

import android.util.Slog;

import android.view.Display;

import android.view.Surface;



import com.android.internal.annotations.GuardedBy;

import com.android.framework.protobuf.nano.MessageNano;
@@ -61,6 +80,7 @@ import java.util.Arrays; 
import java.util.Collection;

import java.util.Collections;

import java.util.List;

import java.util.Map;

import java.util.Set;

import java.util.concurrent.ScheduledThreadPoolExecutor;

import java.util.concurrent.TimeUnit;
@@ -203,6 +223,63 @@ public class CameraServiceProxy extends SystemService 
        }

    }



    private final TaskStateHandler mTaskStackListener = new TaskStateHandler();



    private final class TaskInfo {

        private int frontTaskId;

        private boolean isResizeable;

        private boolean isFixedOrientationLandscape;

        private boolean isFixedOrientationPortrait;

        private int displayId;

    }



    private final class TaskStateHandler extends TaskStackListener {

        private final Object mMapLock = new Object();



        // maps the current top level task id to its corresponding package name

        @GuardedBy("mMapLock")

        private final ArrayMap<String, TaskInfo> mTaskInfoMap = new ArrayMap<>();



        @Override

        public void onTaskMovedToFront(ActivityManager.RunningTaskInfo taskInfo)

                throws RemoteException {

            synchronized (mMapLock) {

                TaskInfo info = new TaskInfo();

                info.frontTaskId = taskInfo.taskId;

                info.isResizeable = taskInfo.isResizeable;

                info.displayId = taskInfo.displayId;

                info.isFixedOrientationLandscape = ActivityInfo.isFixedOrientationLandscape(

                        taskInfo.topActivityInfo.screenOrientation);

                info.isFixedOrientationPortrait = ActivityInfo.isFixedOrientationPortrait(

                        taskInfo.topActivityInfo.screenOrientation);

                mTaskInfoMap.put(taskInfo.topActivityInfo.packageName, info);

            }

        }



        @Override

        public void onTaskRemoved(int taskId) throws RemoteException {

            synchronized (mMapLock) {

                for (Map.Entry<String, TaskInfo> entry : mTaskInfoMap.entrySet()){

                    if (entry.getValue().frontTaskId == taskId) {

                        mTaskInfoMap.remove(entry.getKey());

                        break;

                    }

                }

            }

        }



        public @Nullable TaskInfo getFrontTaskInfo(String packageName) {

            synchronized (mMapLock) {

                if (mTaskInfoMap.containsKey(packageName)) {

                    return mTaskInfoMap.get(packageName);

                }

            }



            Log.e(TAG, "Top task with package name: " + packageName + " not found!");

            return null;

        }

    };



    private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {
@@ -229,6 +306,102 @@ public class CameraServiceProxy extends SystemService 
    };



    private final ICameraServiceProxy.Stub mCameraServiceProxy = new ICameraServiceProxy.Stub() {

        private boolean isMOrBelow(Context ctx, String packageName) {

            try {

                return ctx.getPackageManager().getPackageInfo(

                        packageName, 0).applicationInfo.targetSdkVersion <= M;

            } catch (PackageManager.NameNotFoundException e) {

                Slog.e(TAG,"Package name not found!");

            }

            return false;

        }



        /**

         * Gets whether crop-rotate-scale is needed.

         */

        private boolean getNeedCropRotateScale(Context ctx, String packageName,

                @Nullable TaskInfo taskInfo, int sensorOrientation, int lensFacing) {

            if (taskInfo == null) {

                return false;

            }



            // External cameras do not need crop-rotate-scale.

            if (lensFacing != CameraMetadata.LENS_FACING_FRONT

                    && lensFacing != CameraMetadata.LENS_FACING_BACK) {

                Log.v(TAG, "lensFacing=" + lensFacing + ". Crop-rotate-scale is disabled.");

                return false;

            }



            // Only enable the crop-rotate-scale workaround if the app targets M or below and is not

            // resizeable.

            if ((ctx != null) && !isMOrBelow(ctx, packageName) && taskInfo.isResizeable) {

                Slog.v(TAG,

                        "The activity is N or above and claims to support resizeable-activity. "

                                + "Crop-rotate-scale is disabled.");

                return false;

            }



            DisplayManager displayManager = ctx.getSystemService(DisplayManager.class);

            Display display = displayManager.getDisplay(taskInfo.displayId);

            int rotation = display.getRotation();

            int rotationDegree = 0;

            switch (rotation) {

                case Surface.ROTATION_0:

                    rotationDegree = 0;

                    break;

                case Surface.ROTATION_90:

                    rotationDegree = 90;

                    break;

                case Surface.ROTATION_180:

                    rotationDegree = 180;

                    break;

                case Surface.ROTATION_270:

                    rotationDegree = 270;

                    break;

            }



            // Here we only need to know whether the camera is landscape or portrait. Therefore we

            // don't need to consider whether it is a front or back camera. The formula works for

            // both.

            boolean landscapeCamera = ((rotationDegree + sensorOrientation) % 180 == 0);

            Slog.v(TAG,

                    "Display.getRotation()=" + rotationDegree

                            + " CameraCharacteristics.SENSOR_ORIENTATION=" + sensorOrientation

                            + " isFixedOrientationPortrait=" + taskInfo.isFixedOrientationPortrait

                            + " isFixedOrientationLandscape=" +

                            taskInfo.isFixedOrientationLandscape);

            // We need to do crop-rotate-scale when camera is landscape and activity is portrait or

            // vice versa.

            if ((taskInfo.isFixedOrientationPortrait && landscapeCamera)

                    || (taskInfo.isFixedOrientationLandscape && !landscapeCamera)) {

                return true;

            } else {

                return false;

            }

        }



        @Override

        public boolean isRotateAndCropOverrideNeeded(String packageName, int sensorOrientation,

                int lensFacing) {

            if (Binder.getCallingUid() != Process.CAMERASERVER_UID) {

                Slog.e(TAG, "Calling UID: " + Binder.getCallingUid() + " doesn't match expected " +

                        " camera service UID!");

                return false;

            }



            // A few remaining todos:

            // 1) Do the same check when working in WM compatible mode. The sequence needs

            //    to be adjusted and use orientation events as triggers for all active camera

            //    clients.

            // 2) Modify the sensor orientation in camera characteristics along with any 3A regions

            //    in capture requests/results to account for thea physical rotation. The former

            //    is somewhat tricky as it assumes that camera clients always check for the current

            //    value by retrieving the camera characteristics from the camera device.

            return getNeedCropRotateScale(mContext, packageName,

                    mTaskStackListener.getFrontTaskInfo(packageName), sensorOrientation,

                    lensFacing);

        }



        @Override

        public void pingForUserUpdate() {

            if (Binder.getCallingUid() != Process.CAMERASERVER_UID) {
@@ -350,6 +523,12 @@ public class CameraServiceProxy extends SystemService 
        publishBinderService(CAMERA_SERVICE_PROXY_BINDER_NAME, mCameraServiceProxy);

        publishLocalService(CameraServiceProxy.class, this);



        try {

            ActivityTaskManager.getService().registerTaskStackListener(mTaskStackListener);

        } catch (RemoteException e) {

            Log.e(TAG, "Failed to register task stack listener!");

        }



        CameraStatsJobService.schedule(mContext);

    }