1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.view; 18 19 /** 20 * An instance of this class represents a connection to the surface 21 * flinger, from which you can create one or more Surface instances that will 22 * be composited to the screen. 23 * {@hide} 24 */ 25 public final class SurfaceSession { 26 // Note: This field is accessed by native code. 27 private long mNativeClient; // SurfaceComposerClient* 28 29 private static native long nativeCreate(); 30 private static native void nativeDestroy(long ptr); 31 private static native void nativeKill(long ptr); 32 33 /** Create a new connection with the surface flinger. */ 34 public SurfaceSession() { 35 mNativeClient = nativeCreate(); 36 } 37 38 /* no user serviceable parts here ... */ 39 @Override 40 protected void finalize() throws Throwable { 41 try { 42 if (mNativeClient != 0) { 43 nativeDestroy(mNativeClient); 44 } 45 } finally { 46 super.finalize(); 47 } 48 } 49 50 /** 51 * Forcibly detach native resources associated with this object. 52 * Unlike destroy(), after this call any surfaces that were created 53 * from the session will no longer work. 54 */ 55 public void kill() { 56 nativeKill(mNativeClient); 57 } 58 } 59 60
