base: Add support for LMOFreeform service

Change-Id: I03ebd2e0e175f91fbc83fb9221724d7be5daf7ca

services: Add LMOFreeform system service

Change-Id: Icb3933846fc38f7fe1679e7f1fd916c2c137671d

Android.bp

@@ -139,6 +139,7 @@ filegroup {
         ":storaged_aidl",
         ":vold_aidl",
         ":deviceproductinfoconstants_aidl",
+        ":lmofreeform_aidl",
 
         // For the generated R.java and Manifest.java
         ":framework-res{.aapt.srcjar}",

core/java/android/hardware/display/DisplayManagerInternal.java

@@ -23,17 +23,21 @@
 import android.hardware.SensorManager;
 import android.hardware.input.HostUsiVersion;
 import android.os.Handler;
+import android.os.IBinder;
 import android.os.PowerManager;
 import android.util.IntArray;
 import android.util.SparseArray;
 import android.view.Display;
 import android.view.DisplayInfo;
+import android.view.Surface;
 import android.view.SurfaceControl;
 import android.view.SurfaceControl.RefreshRateRange;
 import android.view.SurfaceControl.Transaction;
 import android.window.DisplayWindowPolicyController;
 import android.window.ScreenCapture;
 
+import com.libremobileos.freeform.ILMOFreeformDisplayCallback;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.List;
@@ -430,6 +434,17 @@ public abstract RefreshRateRange getRefreshRateForDisplayAndSensor(
      */
     public abstract IntArray getDisplayGroupIds();
 
+    // LMOFreeform
+    public abstract void createFreeformLocked(String name, ILMOFreeformDisplayCallback callback,
+            int width, int height, int densityDpi, boolean secure, boolean ownContentOnly,
+            boolean shouldShowSystemDecorations, Surface surface, float refreshRate,
+            long presentationDeadlineNanos);
+
+    public abstract void resizeFreeform(IBinder appToken, int width, int height,
+            int densityDpi);
+
+    public abstract void releaseFreeform(IBinder appToken);
+
     /**
      * Called upon presentation started/ended on the display.
      * @param displayId the id of the display where presentation started.

core/res/AndroidManifest.xml

@@ -1330,6 +1330,10 @@
         android:permissionGroup="android.permission-group.UNDEFINED"
         android:protectionLevel="signature|appop|preinstalled" />
 
+    <!-- @hide -->
+    <permission android:name="com.libremobileos.permission.START_FREEFORM"
+                android:protectionLevel="signature|privileged" />
+
     <!-- Allows an application to modify and delete media files on this device or any connected
          storage device without user confirmation. Applications must already be granted the
          {@link #READ_EXTERNAL_STORAGE} or {@link #MANAGE_EXTERNAL_STORAGE}} permissions for this

data/etc/com.android.settings.xml

@@ -70,5 +70,6 @@
         <permission name="android.permission.LIST_ENABLED_CREDENTIAL_PROVIDERS" />
         <permission name="android.permission.SATELLITE_COMMUNICATION" />
         <permission name="android.permission.READ_SYSTEM_GRAMMATICAL_GENDER" />
+        <permission name="com.libremobileos.permission.START_FREEFORM" />
     </privapp-permissions>
 </permissions>

services/Android.bp

@@ -238,6 +238,7 @@ java_library {
         "service-blobstore",
         "service-jobscheduler",
         "android.hidl.base-V1.0-java",
+        "lmofreeform-server",
     ],
 
     libs: [

services/core/Android.bp

@@ -133,6 +133,7 @@ java_library_static {
         ":display-device-config",
         ":display-layout-config",
         ":device-state-config",
+        ":lmofreeform-display-adapter-java",
         "java/com/android/server/EventLogTags.logtags",
         "java/com/android/server/am/EventLogTags.logtags",
         "java/com/android/server/wm/EventLogTags.logtags",

services/core/java/com/android/server/display/DisplayManagerService.java

@@ -180,6 +180,8 @@
 import com.android.server.wm.SurfaceAnimationThread;
 import com.android.server.wm.WindowManagerInternal;
 
+import com.libremobileos.freeform.ILMOFreeformDisplayCallback;
+
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -517,6 +519,8 @@ public synchronized void requestDisplayState(int displayId, int state, float bri
     private final boolean mExtraDisplayEventLogging;
     private final String mExtraDisplayLoggingPackageName;
 
+    private LMOFreeformDisplayAdapter mFreeformDisplayAdapter;
+
     private final BroadcastReceiver mIdleModeReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
@@ -1970,6 +1974,7 @@ private void registerAdditionalDisplayAdapters() {
             if (shouldRegisterNonEssentialDisplayAdaptersLocked()) {
                 registerOverlayDisplayAdapterLocked();
                 registerWifiDisplayAdapterLocked();
+                registerFreeformDisplayAdapterLocked();
             }
         }
     }
@@ -1990,6 +1995,13 @@ private void registerWifiDisplayAdapterLocked() {
         }
     }
 
+    private void registerFreeformDisplayAdapterLocked() {
+        mFreeformDisplayAdapter = new LMOFreeformDisplayAdapter(
+                mSyncRoot, mContext, mHandler, mDisplayDeviceRepo, mLogicalDisplayMapper,
+                mUiHandler, mFlags);
+        registerDisplayAdapterLocked(mFreeformDisplayAdapter);
+    }
+
     private boolean shouldRegisterNonEssentialDisplayAdaptersLocked() {
         // In safe mode, we disable non-essential display adapters to give the user
         // an opportunity to fix broken settings or other problems that might affect
@@ -5150,6 +5162,23 @@ public DisplayManagerInternal.DisplayOffloadSession registerDisplayOffloader(
         public void onPresentation(int displayId, boolean isShown) {
             mExternalDisplayPolicy.onPresentation(displayId, isShown);
         }
+
+        public void createFreeformLocked(String name, ILMOFreeformDisplayCallback callback,
+                int width, int height, int densityDpi, boolean secure, boolean ownContentOnly,
+                boolean shouldShowSystemDecorations, Surface surface, float refreshRate,
+                long presentationDeadlineNanos) {
+            mFreeformDisplayAdapter.createFreeformLocked(name, callback, width, height, densityDpi,
+                    secure, ownContentOnly, shouldShowSystemDecorations, surface, refreshRate,
+                    presentationDeadlineNanos);
+        }
+
+        public void resizeFreeform(IBinder appToken, int width, int height, int densityDpi) {
+            mFreeformDisplayAdapter.resizeFreeform(appToken, width, height, densityDpi);
+        }
+
+        public void releaseFreeform(IBinder appToken) {
+            mFreeformDisplayAdapter.releaseFreeform(appToken);
+        }
     }
 
     class DesiredDisplayModeSpecsObserver

services/java/com/android/server/SystemServer.java

@@ -293,6 +293,7 @@
 import com.android.server.wm.WindowManagerService;
 import com.android.server.lineage.health.HealthInterfaceService;
 import com.android.server.lineage.LineageGlobalActionsService;
+import com.libremobileos.server.display.LMOFreeformSystemService;
 
 import dalvik.system.VMRuntime;
 import dalvik.system.PathClassLoader;
@@ -1736,6 +1737,10 @@ private void startOtherServices(@NonNull TimingsTraceAndSlog t) {
             mSystemServiceManager.startService(LineageGlobalActionsService.class);
             t.traceEnd();
 
+            t.traceBegin("LMOFreeformSystemService");
+            mSystemServiceManager.startService(LMOFreeformSystemService.class);
+            t.traceEnd();
+
         } catch (Throwable e) {
             Slog.e("System", "******************************************");
             Slog.e("System", "************ Failure starting core service");

services/java/com/libremobileos/server/display/LMOFreeformSystemService.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2023-2024 LibreMobileOS Foundation
+ *
+ * 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.libremobileos.server.display;
+
+import android.content.Context;
+import android.hardware.display.DisplayManagerInternal;
+import android.util.Slog;
+
+import com.android.server.SystemService;
+
+import com.libremobileos.freeform.server.LMOFreeformService;
+import com.libremobileos.freeform.server.LMOFreeformServiceHolder;
+import com.libremobileos.freeform.server.LMOFreeformUIService;
+
+public class LMOFreeformSystemService extends SystemService {
+
+    private static final String TAG = "LMOFreeformSystemService";
+
+    public LMOFreeformSystemService(Context context) {
+        super(context);
+    }
+
+    @Override
+    public void onStart() {
+        // noop
+    }
+
+    @Override
+    public void onBootPhase(@BootPhase int phase) {
+        if (phase != PHASE_ACTIVITY_MANAGER_READY || isSafeMode()) return;
+
+        Slog.d(TAG, "PHASE_ACTIVITY_MANAGER_READY, going to init!");
+
+        DisplayManagerInternal displayManager = getLocalService(DisplayManagerInternal.class);
+        if (displayManager == null) {
+            Slog.e(TAG, "Cannot init: DisplayManagerInternal is null!");
+            return;
+        }
+
+        LMOFreeformService service = new LMOFreeformService(displayManager);
+        LMOFreeformUIService uiService =
+                new LMOFreeformUIService(getContext(), displayManager, service);
+        LMOFreeformServiceHolder.init(uiService, service);
+    }
+}