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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2002, 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 java.awt.Composite; | ||
| 29 | import java.awt.CompositeContext; | ||
| 30 | import java.awt.AlphaComposite; | ||
| 31 | import java.awt.image.ColorModel; | ||
| 32 | import java.awt.image.BufferedImage; | ||
| 33 | import java.awt.image.Raster; | ||
| 34 | import java.awt.image.WritableRaster; | ||
| 35 | import sun.awt.image.BufImgSurfaceData; | ||
| 36 | import sun.java2d.loops.XORComposite; | ||
| 37 | import sun.java2d.loops.CompositeType; | ||
| 38 | import sun.java2d.loops.Blit; | ||
| 39 | |||
| 40 | public class SunCompositeContext implements CompositeContext { | ||
| 41 | ColorModel srcCM; | ||
| 42 | ColorModel dstCM; | ||
| 43 | Composite composite; | ||
| 44 | CompositeType comptype; | ||
| 45 | |||
| 46 | public SunCompositeContext(AlphaComposite ac, | ||
| 47 | ColorModel s, ColorModel d) | ||
| 48 | { | ||
| 49 | if (s == null) { | ||
| 50 | throw new NullPointerException("Source color model cannot be null"); | ||
| 51 | } | ||
| 52 | if (d == null) { | ||
| 53 | throw new NullPointerException("Destination color model cannot be null"); | ||
| 54 | } | ||
| 55 | srcCM = s; | ||
| 56 | dstCM = d; | ||
| 57 | this.composite = ac; | ||
| 58 | this.comptype = CompositeType.forAlphaComposite(ac); | ||
| 59 | } | ||
| 60 | |||
| 61 | public SunCompositeContext(XORComposite xc, | ||
| 62 | ColorModel s, ColorModel d) | ||
| 63 | { | ||
| 64 | if (s == null) { | ||
| 65 | throw new NullPointerException("Source color model cannot be null"); | ||
| 66 | } | ||
| 67 | if (d == null) { | ||
| 68 | throw new NullPointerException("Destination color model cannot be null"); | ||
| 69 | } | ||
| 70 | srcCM = s; | ||
| 71 | dstCM = d; | ||
| 72 | this.composite = xc; | ||
| 73 | this.comptype = CompositeType.Xor; | ||
| 74 | } | ||
| 75 | |||
| 76 | /** | ||
| 77 | * Release resources allocated for context. | ||
| 78 | */ | ||
| 79 | public void dispose() { | ||
| 80 | } | ||
| 81 | |||
| 82 | /** | ||
| 83 | * This method composes the two source tiles | ||
| 84 | * and places the result in the destination tile. Note that | ||
| 85 | * the destination can be the same object as either | ||
| 86 | * the first or second source. | ||
| 87 | * @param src1 The first source tile for the compositing operation. | ||
| 88 | * @param src2 The second source tile for the compositing operation. | ||
| 89 | * @param dst The tile where the result of the operation is stored. | ||
| 90 | */ | ||
| 91 | public void compose(Raster srcArg, Raster dstIn, WritableRaster dstOut) { | ||
| 92 | WritableRaster src; | ||
| 93 | int w; | ||
| 94 | int h; | ||
| 95 | |||
| 96 | if (dstIn != dstOut) { | ||
| 97 | dstOut.setDataElements(0, 0, dstIn); | ||
| 98 | } | ||
| 99 | |||
| 100 | // REMIND: We should be able to create a SurfaceData from just | ||
| 101 | // a non-writable Raster and a ColorModel. Since we need to | ||
| 102 | // create a SurfaceData from a BufferedImage then we need to | ||
| 103 | // make a WritableRaster since it is needed to construct a | ||
| 104 | // BufferedImage. | ||
| 105 | if (srcArg instanceof WritableRaster) { | ||
| 106 | src = (WritableRaster) srcArg; | ||
| 107 | } else { | ||
| 108 | src = srcArg.createCompatibleWritableRaster(); | ||
| 109 | src.setDataElements(0, 0, srcArg); | ||
| 110 | } | ||
| 111 | |||
| 112 | w = Math.min(src.getWidth(), dstIn.getWidth()); | ||
| 113 | h = Math.min(src.getHeight(), dstIn.getHeight()); | ||
| 114 | |||
| 115 | BufferedImage srcImg = new BufferedImage(srcCM, src, | ||
| 116 | srcCM.isAlphaPremultiplied(), | ||
| 117 | null); | ||
| 118 | BufferedImage dstImg = new BufferedImage(dstCM, dstOut, | ||
| 119 | dstCM.isAlphaPremultiplied(), | ||
| 120 | null); | ||
| 121 | |||
| 122 | SurfaceData srcData = BufImgSurfaceData.createData(srcImg); | ||
| 123 | SurfaceData dstData = BufImgSurfaceData.createData(dstImg); | ||
| 124 | Blit blit = Blit.getFromCache(srcData.getSurfaceType(), | ||
| 125 | comptype, | ||
| 126 | dstData.getSurfaceType()); | ||
| 127 | blit.Blit(srcData, dstData, composite, null, 0, 0, 0, 0, w, h); | ||
| 128 | } | ||
| 129 | } | ||