1 /* 2 * Copyright (c) 2004, 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.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 locate(SurfaceType srctype)55 public static TransformHelper locate(SurfaceType srctype) { 56 return (TransformHelper) 57 GraphicsPrimitiveMgr.locate(primTypeID, 58 srctype, 59 CompositeType.SrcNoEa, 60 SurfaceType.IntArgbPre); 61 } 62 getFromCache(SurfaceType src)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 TransformHelper(SurfaceType srctype)80 protected TransformHelper(SurfaceType srctype) { 81 super(methodSignature, primTypeID, srctype, 82 CompositeType.SrcNoEa, 83 SurfaceType.IntArgbPre); 84 } 85 TransformHelper(long pNativePrim, SurfaceType srctype, CompositeType comptype, SurfaceType dsttype)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 Transform(MaskBlit output, SurfaceData src, SurfaceData dst, Composite comp, Region clip, AffineTransform itx, int txtype, int sx1, int sy1, int sx2, int sy2, int dx1, int dy1, int dx2, int dy2, int edges[], int dxoff, int dyoff)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 makePrimitive(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype)102 public GraphicsPrimitive makePrimitive(SurfaceType srctype, 103 CompositeType comptype, 104 SurfaceType dsttype) 105 { 106 return null; 107 } 108 traceWrap()109 public GraphicsPrimitive traceWrap() { 110 return new TraceTransformHelper(this); 111 } 112 113 private static class TraceTransformHelper extends TransformHelper { 114 TransformHelper target; 115 TraceTransformHelper(TransformHelper target)116 public TraceTransformHelper(TransformHelper target) { 117 super(target.getSourceType()); 118 this.target = target; 119 } 120 traceWrap()121 public GraphicsPrimitive traceWrap() { 122 return this; 123 } 124 Transform(MaskBlit output, SurfaceData src, SurfaceData dst, Composite comp, Region clip, AffineTransform itx, int txtype, int sx1, int sy1, int sx2, int sy2, int dx1, int dy1, int dx2, int dy2, int edges[], int dxoff, int dyoff)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 } 141