1 /* 2 * Copyright (c) 2010, 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.xr; 27 28 import java.awt.GraphicsConfiguration; 29 import java.awt.ImageCapabilities; 30 import java.awt.image.ColorModel; 31 import sun.awt.image.SunVolatileImage; 32 import sun.awt.image.VolatileSurfaceManager; 33 import sun.java2d.SurfaceData; 34 35 /** 36 * XRender platform implementation of the VolatileSurfaceManager class. 37 */ 38 public class XRVolatileSurfaceManager extends VolatileSurfaceManager { 39 40 public XRVolatileSurfaceManager(SunVolatileImage vImg, Object context) { 41 super(vImg, context); 42 } 43 44 protected boolean isAccelerationEnabled() { 45 return true; 46 } 47 48 /** 49 * Create a pixmap-based SurfaceData object 50 */ 51 protected SurfaceData initAcceleratedSurface() { 52 SurfaceData sData; 53 54 try { 55 XRGraphicsConfig gc = (XRGraphicsConfig) vImg.getGraphicsConfig(); 56 ColorModel cm = gc.getColorModel(); 57 long drawable = 0; 58 if (context instanceof Long) { 59 drawable = ((Long)context).longValue(); 60 } 61 sData = XRSurfaceData.createData(gc, 62 vImg.getWidth(), 63 vImg.getHeight(), 64 cm, vImg, drawable, 65 vImg.getTransparency()); 66 } catch (NullPointerException ex) { 67 sData = null; 68 } catch (OutOfMemoryError er) { 69 sData = null; 70 } 71 72 return sData; 73 } 74 75 /** 76 * XRender should allow copies between different formats and depths. 77 * TODO: verify that this assumption is correct. 78 */ 79 protected boolean isConfigValid(GraphicsConfiguration gc) { 80 return true; 81 } 82 83 /** 84 * Need to override the default behavior because Pixmaps-based 85 * images are accelerated but not volatile. 86 */ 87 @Override 88 public ImageCapabilities getCapabilities(GraphicsConfiguration gc) { 89 if (isConfigValid(gc) && isAccelerationEnabled()) { 90 return new ImageCapabilities(true); 91 } 92 return new ImageCapabilities(false); 93 } 94 }