1 /* 2 * Copyright (c) 2007, 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.opengl; 27 28 import java.awt.Color; 29 import java.awt.Transparency; 30 31 import sun.java2d.SurfaceData; 32 import sun.java2d.SurfaceDataProxy; 33 import sun.java2d.loops.SurfaceType; 34 import sun.java2d.loops.CompositeType; 35 36 /** 37 * The proxy class contains the logic for when to replace a 38 * SurfaceData with a cached OGL Texture and the code to create 39 * the accelerated surfaces. 40 */ 41 public class OGLSurfaceDataProxy extends SurfaceDataProxy { 42 public static SurfaceDataProxy createProxy(SurfaceData srcData, 43 OGLGraphicsConfig dstConfig) 44 { 45 if (srcData instanceof OGLSurfaceData) { 46 // srcData must be a VolatileImage which either matches 47 // our pixel format or not - either way we do not cache it... 48 return UNCACHED; 49 } 50 51 return new OGLSurfaceDataProxy(dstConfig, srcData.getTransparency()); 52 } 53 54 OGLGraphicsConfig oglgc; 55 int transparency; 56 57 public OGLSurfaceDataProxy(OGLGraphicsConfig oglgc, int transparency) { 58 this.oglgc = oglgc; 59 this.transparency = transparency; 60 } 61 62 @Override 63 public SurfaceData validateSurfaceData(SurfaceData srcData, 64 SurfaceData cachedData, 65 int w, int h) 66 { 67 if (cachedData == null) { 68 cachedData = oglgc.createManagedSurface(w, h, transparency); 69 } 70 return cachedData; 71 } 72 73 @Override 74 public boolean isSupportedOperation(SurfaceData srcData, 75 int txtype, 76 CompositeType comp, 77 Color bgColor) 78 { 79 return (bgColor == null || transparency == Transparency.OPAQUE); 80 } 81 }