Showing the changes to java/pkg/sun/java2d/SunCompositeContext.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,129 @@ | ||
| 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 | +} | |