Showing the changes to java/pkg/sun/java2d/SurfaceManagerFactory.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,91 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2003, 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; | ||
| 27 | |||
| 28 | import sun.awt.image.SunVolatileImage; | ||
| 29 | import sun.awt.image.VolatileSurfaceManager; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * This factory creates platform specific VolatileSurfaceManager | ||
| 33 | * implementations. | ||
| 34 | * | ||
| 35 | * There are two platform specific SurfaceManagerFactories in OpenJDK, | ||
| 36 | * UnixSurfaceManagerFactory and WindowsSurfaceManagerFactory. | ||
| 37 | * The actually used SurfaceManagerFactory is set by the respective platform | ||
| 38 | * GraphicsEnvironment implementations in the static initializer. | ||
| 39 | */ | ||
| 40 | public abstract class SurfaceManagerFactory { | ||
| 41 | |||
| 42 | /** | ||
| 43 | * The single shared instance. | ||
| 44 | */ | ||
| 45 | private static SurfaceManagerFactory instance; | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Returns the surface manager factory instance. This returns a factory | ||
| 49 | * that has been set by {@link #setInstance(SurfaceManagerFactory)}. | ||
| 50 | * | ||
| 51 | * @return the surface manager factory | ||
| 52 | */ | ||
| 53 | public synchronized static SurfaceManagerFactory getInstance() { | ||
| 54 | |||
| 55 | if (instance == null) { | ||
| 56 | throw new IllegalStateException("No SurfaceManagerFactory set."); | ||
| 57 | } | ||
| 58 | return instance; | ||
| 59 | } | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Sets the surface manager factory. This may only be called once, and it | ||
| 63 | * may not be set back to {@code null} when the factory is already | ||
| 64 | * instantiated. | ||
| 65 | * | ||
| 66 | * @param factory the factory to set | ||
| 67 | */ | ||
| 68 | public synchronized static void setInstance(SurfaceManagerFactory factory) { | ||
| 69 | |||
| 70 | if (factory == null) { | ||
| 71 | // We don't want to allow setting this to null at any time. | ||
| 72 | throw new IllegalArgumentException("factory must be non-null"); | ||
| 73 | } | ||
| 74 | |||
| 75 | if (instance != null) { | ||
| 76 | // We don't want to re-set the instance at any time. | ||
| 77 | throw new IllegalStateException("The surface manager factory is already initialized"); | ||
| 78 | } | ||
| 79 | |||
| 80 | instance = factory; | ||
| 81 | } | ||
| 82 | |||
| 83 | /** | ||
| 84 | * Creates a new instance of a VolatileSurfaceManager given any | ||
| 85 | * arbitrary SunVolatileImage. An optional context Object can be supplied | ||
| 86 | * as a way for the caller to pass pipeline-specific context data to | ||
| 87 | * the VolatileSurfaceManager (such as a backbuffer handle, for example). | ||
| 88 | */ | ||
| 89 | public abstract VolatileSurfaceManager | ||
| 90 | createVolatileManager(SunVolatileImage image, Object context); | ||
| 91 | } | ||