| /* |
| * Copyright (C) 2018 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.flicker.monitor; |
| |
| import android.os.IBinder; |
| import android.os.Parcel; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| |
| /** |
| * Captures Layers trace from SurfaceFlinger. |
| */ |
| public class LayersTraceMonitor extends TraceMonitor { |
| private static final String TAG = "LayersTraceMonitor"; |
| private IBinder mSurfaceFlinger = ServiceManager.getService("SurfaceFlinger"); |
| |
| public LayersTraceMonitor() { |
| traceFileName = "layers_trace.pb"; |
| } |
| |
| @Override |
| public void start() { |
| setEnabled(true); |
| } |
| |
| @Override |
| public void stop() { |
| setEnabled(false); |
| } |
| |
| @Override |
| public boolean isEnabled() throws RemoteException { |
| Parcel data = Parcel.obtain(); |
| Parcel reply = Parcel.obtain(); |
| data.writeInterfaceToken("android.ui.ISurfaceComposer"); |
| mSurfaceFlinger.transact(/* LAYER_TRACE_STATUS_CODE */ 1026, |
| data, reply, 0 /* flags */); |
| return reply.readBoolean(); |
| } |
| |
| private void setEnabled(boolean isEnabled) { |
| Parcel data = null; |
| try { |
| if (mSurfaceFlinger != null) { |
| data = Parcel.obtain(); |
| data.writeInterfaceToken("android.ui.ISurfaceComposer"); |
| data.writeInt(isEnabled ? 1 : 0); |
| mSurfaceFlinger.transact( /* LAYER_TRACE_CONTROL_CODE */ 1025, |
| data, null, 0 /* flags */); |
| } |
| } catch (RemoteException e) { |
| Log.e(TAG, "Could not set layer tracing." + e.toString()); |
| } finally { |
| if (data != null) { |
| data.recycle(); |
| } |
| } |
| } |
| } |