1 /* 2 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.java2d.pipe.hw; 27 28 import java.util.Collections; 29 import java.util.HashMap; 30 import java.util.Iterator; 31 import java.util.Map; 32 import java.util.Set; 33 import javax.tools.annotation.GenerateNativeHeader; 34 35 import javax.tools.annotation.GenerateNativeHeader; 36 37 /** 38 * This class is used to notify listeners about accelerated device's 39 * events such as device reset or dispose that are about to occur. 40 */ 41 /* No native methods here, but the constants are needed in the supporting JNI code */ 42 @GenerateNativeHeader 43 public class AccelDeviceEventNotifier { 44 45 private static AccelDeviceEventNotifier theInstance; 46 47 /** 48 * A device is about to be reset. The listeners have to release all 49 * resources associated with the device which are required for the device 50 * to be reset. 51 */ 52 public static final int DEVICE_RESET = 0; 53 54 /** 55 * A device is about to be disposed. The listeners have to release all 56 * resources associated with the device. 57 */ 58 public static final int DEVICE_DISPOSED = 1; 59 60 private final Map<AccelDeviceEventListener, Integer> listeners; 61 62 private AccelDeviceEventNotifier() { 63 listeners = Collections.synchronizedMap( 64 new HashMap<AccelDeviceEventListener, Integer>(1)); 65 } 66 67 /** 68 * Returns a singleton of AccelDeviceEventNotifier if it exists. If the 69 * passed boolean is false and singleton doesn't exist yet, null is 70 * returned. If the passed boolean is {@code true} and singleton doesn't 71 * exist it will be created and returned. 72 * 73 * @param create whether to create a singleton instance if doesn't yet 74 * exist 75 * @return a singleton instance or null 76 */ 77 private static synchronized 78 AccelDeviceEventNotifier getInstance(boolean create) | 1 /* 2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.java2d.pipe.hw; 27 28 import java.util.Collections; 29 import java.util.HashMap; 30 import java.util.Iterator; 31 import java.util.Map; 32 import java.util.Set; 33 import java.lang.annotation.Native; 34 35 36 /** 37 * This class is used to notify listeners about accelerated device's 38 * events such as device reset or dispose that are about to occur. 39 */ 40 public class AccelDeviceEventNotifier { 41 42 private static AccelDeviceEventNotifier theInstance; 43 44 /** 45 * A device is about to be reset. The listeners have to release all 46 * resources associated with the device which are required for the device 47 * to be reset. 48 */ 49 @Native public static final int DEVICE_RESET = 0; 50 51 /** 52 * A device is about to be disposed. The listeners have to release all 53 * resources associated with the device. 54 */ 55 @Native public static final int DEVICE_DISPOSED = 1; 56 57 private final Map<AccelDeviceEventListener, Integer> listeners; 58 59 private AccelDeviceEventNotifier() { 60 listeners = Collections.synchronizedMap( 61 new HashMap<AccelDeviceEventListener, Integer>(1)); 62 } 63 64 /** 65 * Returns a singleton of AccelDeviceEventNotifier if it exists. If the 66 * passed boolean is false and singleton doesn't exist yet, null is 67 * returned. If the passed boolean is {@code true} and singleton doesn't 68 * exist it will be created and returned. 69 * 70 * @param create whether to create a singleton instance if doesn't yet 71 * exist 72 * @return a singleton instance or null 73 */ 74 private static synchronized 75 AccelDeviceEventNotifier getInstance(boolean create) |