J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 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.loops; |
| 27 | |
| 28 | import java.awt.Composite; |
| 29 | import java.awt.geom.AffineTransform; |
| 30 | import java.lang.ref.WeakReference; |
| 31 | import sun.java2d.SurfaceData; |
| 32 | import sun.java2d.loops.GraphicsPrimitive; |
| 33 | import sun.java2d.pipe.Region; |
| 34 | |
| 35 | /** |
| 36 | * TransformHelper |
| 37 | * 1) applies an AffineTransform to a rectangle of pixels while copying |
| 38 | * from one surface to another |
| 39 | * 2) performs compositing of colors based upon a Composite |
| 40 | * parameter |
| 41 | * |
| 42 | * precise behavior is undefined if the source surface |
| 43 | * and the destination surface are the same surface |
| 44 | * with overlapping regions of pixels |
| 45 | */ |
| 46 | public class TransformHelper extends GraphicsPrimitive |
| 47 | { |
| 48 | public static final String methodSignature = |
| 49 | "TransformHelper(...)".toString(); |
| 50 | |
| 51 | public static final int primTypeID = makePrimTypeID(); |
| 52 | |
| 53 | private static RenderCache helpercache = new RenderCache(10); |
| 54 | |
| 55 | public static TransformHelper locate(SurfaceType srctype) { |
| 56 | return (TransformHelper) |
| 57 | GraphicsPrimitiveMgr.locate(primTypeID, |
| 58 | srctype, |
| 59 | CompositeType.SrcNoEa, |
| 60 | SurfaceType.IntArgbPre); |
| 61 | } |
| 62 | |
| 63 | public static synchronized TransformHelper getFromCache(SurfaceType src) { |
| 64 | Object o = helpercache.get(src, null, null); |
| 65 | if (o != null) { |
| 66 | return (TransformHelper) o; |
| 67 | } |
| 68 | TransformHelper helper = locate(src); |
| 69 | if (helper == null) { |
| 70 | /* |
| 71 | System.out.println("helper loop not found for:"); |
| 72 | System.out.println("src: "+src); |
| 73 | */ |
| 74 | } else { |
| 75 | helpercache.put(src, null, null, helper); |
| 76 | } |
| 77 | return helper; |
| 78 | } |
| 79 | |
| 80 | protected TransformHelper(SurfaceType srctype) { |
| 81 | super(methodSignature, primTypeID, srctype, |
| 82 | CompositeType.SrcNoEa, |
| 83 | SurfaceType.IntArgbPre); |
| 84 | } |
| 85 | |
| 86 | public TransformHelper(long pNativePrim, SurfaceType srctype, |
| 87 | CompositeType comptype, |
| 88 | SurfaceType dsttype) |
| 89 | { |
| 90 | super(pNativePrim, methodSignature, primTypeID, |
| 91 | srctype, comptype, dsttype); |
| 92 | } |
| 93 | |
| 94 | public native void Transform(MaskBlit output, |
| 95 | SurfaceData src, SurfaceData dst, |
| 96 | Composite comp, Region clip, |
| 97 | AffineTransform itx, int txtype, |
| 98 | int sx1, int sy1, int sx2, int sy2, |
| 99 | int dx1, int dy1, int dx2, int dy2, |
| 100 | int edges[], int dxoff, int dyoff); |
| 101 | |
| 102 | public GraphicsPrimitive makePrimitive(SurfaceType srctype, |
| 103 | CompositeType comptype, |
| 104 | SurfaceType dsttype) |
| 105 | { |
| 106 | return null; |
| 107 | } |
| 108 | |
| 109 | public GraphicsPrimitive traceWrap() { |
| 110 | return new TraceTransformHelper(this); |
| 111 | } |
| 112 | |
| 113 | private static class TraceTransformHelper extends TransformHelper { |
| 114 | TransformHelper target; |
| 115 | |
| 116 | public TraceTransformHelper(TransformHelper target) { |
| 117 | super(target.getSourceType()); |
| 118 | this.target = target; |
| 119 | } |
| 120 | |
| 121 | public GraphicsPrimitive traceWrap() { |
| 122 | return this; |
| 123 | } |
| 124 | |
| 125 | public void Transform(MaskBlit output, |
| 126 | SurfaceData src, SurfaceData dst, |
| 127 | Composite comp, Region clip, |
| 128 | AffineTransform itx, int txtype, |
| 129 | int sx1, int sy1, int sx2, int sy2, |
| 130 | int dx1, int dy1, int dx2, int dy2, |
| 131 | int edges[], int dxoff, int dyoff) |
| 132 | { |
| 133 | tracePrimitive(target); |
| 134 | target.Transform(output, src, dst, comp, clip, itx, txtype, |
| 135 | sx1, sy1, sx2, sy2, |
| 136 | dx1, dy1, dx2, dy2, |
| 137 | edges, dxoff, dyoff); |
| 138 | } |
| 139 | } |
| 140 | } |