J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2007 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 | } |