| /* |
| * Copyright (c) 1997, 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.java2d; |
| |
| import java.awt.Composite; |
| import java.awt.CompositeContext; |
| import java.awt.AlphaComposite; |
| import java.awt.image.ColorModel; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.Raster; |
| import java.awt.image.WritableRaster; |
| import sun.awt.image.BufImgSurfaceData; |
| import sun.java2d.loops.XORComposite; |
| import sun.java2d.loops.CompositeType; |
| import sun.java2d.loops.Blit; |
| |
| public class SunCompositeContext implements CompositeContext { |
| ColorModel srcCM; |
| ColorModel dstCM; |
| Composite composite; |
| CompositeType comptype; |
| |
| public SunCompositeContext(AlphaComposite ac, |
| ColorModel s, ColorModel d) |
| { |
| if (s == null) { |
| throw new NullPointerException("Source color model cannot be null"); |
| } |
| if (d == null) { |
| throw new NullPointerException("Destination color model cannot be null"); |
| } |
| srcCM = s; |
| dstCM = d; |
| this.composite = ac; |
| this.comptype = CompositeType.forAlphaComposite(ac); |
| } |
| |
| public SunCompositeContext(XORComposite xc, |
| ColorModel s, ColorModel d) |
| { |
| if (s == null) { |
| throw new NullPointerException("Source color model cannot be null"); |
| } |
| if (d == null) { |
| throw new NullPointerException("Destination color model cannot be null"); |
| } |
| srcCM = s; |
| dstCM = d; |
| this.composite = xc; |
| this.comptype = CompositeType.Xor; |
| } |
| |
| /** |
| * Release resources allocated for context. |
| */ |
| public void dispose() { |
| } |
| |
| /** |
| * This method composes the two source tiles |
| * and places the result in the destination tile. Note that |
| * the destination can be the same object as either |
| * the first or second source. |
| * @param src1 The first source tile for the compositing operation. |
| * @param src2 The second source tile for the compositing operation. |
| * @param dst The tile where the result of the operation is stored. |
| */ |
| public void compose(Raster srcArg, Raster dstIn, WritableRaster dstOut) { |
| WritableRaster src; |
| int w; |
| int h; |
| |
| if (dstIn != dstOut) { |
| dstOut.setDataElements(0, 0, dstIn); |
| } |
| |
| // REMIND: We should be able to create a SurfaceData from just |
| // a non-writable Raster and a ColorModel. Since we need to |
| // create a SurfaceData from a BufferedImage then we need to |
| // make a WritableRaster since it is needed to construct a |
| // BufferedImage. |
| if (srcArg instanceof WritableRaster) { |
| src = (WritableRaster) srcArg; |
| } else { |
| src = srcArg.createCompatibleWritableRaster(); |
| src.setDataElements(0, 0, srcArg); |
| } |
| |
| w = Math.min(src.getWidth(), dstIn.getWidth()); |
| h = Math.min(src.getHeight(), dstIn.getHeight()); |
| |
| BufferedImage srcImg = new BufferedImage(srcCM, src, |
| srcCM.isAlphaPremultiplied(), |
| null); |
| BufferedImage dstImg = new BufferedImage(dstCM, dstOut, |
| dstCM.isAlphaPremultiplied(), |
| null); |
| |
| SurfaceData srcData = BufImgSurfaceData.createData(srcImg); |
| SurfaceData dstData = BufImgSurfaceData.createData(dstImg); |
| Blit blit = Blit.getFromCache(srcData.getSurfaceType(), |
| comptype, |
| dstData.getSurfaceType()); |
| blit.Blit(srcData, dstData, composite, null, 0, 0, 0, 0, w, h); |
| } |
| } |