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| 1 | /* | ||
| 2 | * Copyright (c) 1999, 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.lang.ref.WeakReference; | ||
| 30 | import sun.java2d.loops.GraphicsPrimitive; | ||
| 31 | import sun.java2d.SurfaceData; | ||
| 32 | import sun.java2d.pipe.Region; | ||
| 33 | |||
| 34 | /** | ||
| 35 | * MaskBlit | ||
| 36 | * 1) copies rectangle of pixels from one surface to another | ||
| 37 | * 2) performs compositing of colors based upon a Composite | ||
| 38 | * parameter | ||
| 39 | * 3) blends result of composite with destination using an | ||
| 40 | * alpha coverage mask | ||
| 41 | * 4) the mask may be null in which case it should be treated | ||
| 42 | * as if it were an array of all opaque values (0xff) | ||
| 43 | * | ||
| 44 | * precise behavior is undefined if the source surface | ||
| 45 | * and the destination surface are the same surface | ||
| 46 | * with overlapping regions of pixels | ||
| 47 | */ | ||
| 48 | |||
| 49 | public class MaskBlit extends GraphicsPrimitive | ||
| 50 | { | ||
| 51 | public static final String methodSignature = "MaskBlit(...)".toString(); | ||
| 52 | |||
| 53 | public static final int primTypeID = makePrimTypeID(); | ||
| 54 | |||
| 55 | private static RenderCache blitcache = new RenderCache(20); | ||
| 56 | |||
| 57 | public static MaskBlit locate(SurfaceType srctype, | ||
| 58 | CompositeType comptype, | ||
| 59 | SurfaceType dsttype) | ||
| 60 | { | ||
| 61 | return (MaskBlit) | ||
| 62 | GraphicsPrimitiveMgr.locate(primTypeID, | ||
| 63 | srctype, comptype, dsttype); | ||
| 64 | } | ||
| 65 | |||
| 66 | public static MaskBlit getFromCache(SurfaceType src, | ||
| 67 | CompositeType comp, | ||
| 68 | SurfaceType dst) | ||
| 69 | { | ||
| 70 | Object o = blitcache.get(src, comp, dst); | ||
| 71 | if (o != null) { | ||
| 72 | return (MaskBlit) o; | ||
| 73 | } | ||
| 74 | MaskBlit blit = locate(src, comp, dst); | ||
| 75 | if (blit == null) { | ||
| 76 | System.out.println("mask blit loop not found for:"); | ||
| 77 | System.out.println("src: "+src); | ||
| 78 | System.out.println("comp: "+comp); | ||
| 79 | System.out.println("dst: "+dst); | ||
| 80 | } else { | ||
| 81 | blitcache.put(src, comp, dst, blit); | ||
| 82 | } | ||
| 83 | return blit; | ||
| 84 | } | ||
| 85 | |||
| 86 | protected MaskBlit(SurfaceType srctype, | ||
| 87 | CompositeType comptype, | ||
| 88 | SurfaceType dsttype) | ||
| 89 | { | ||
| 90 | super(methodSignature, primTypeID, srctype, comptype, dsttype); | ||
| 91 | } | ||
| 92 | |||
| 93 | public MaskBlit(long pNativePrim, | ||
| 94 | SurfaceType srctype, | ||
| 95 | CompositeType comptype, | ||
| 96 | SurfaceType dsttype) | ||
| 97 | { | ||
| 98 | super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype); | ||
| 99 | } | ||
| 100 | |||
| 101 | /** | ||
| 102 | * All MaskBlit implementors must have this invoker method | ||
| 103 | */ | ||
| 104 | public native void MaskBlit(SurfaceData src, SurfaceData dst, | ||
| 105 | Composite comp, Region clip, | ||
| 106 | int srcx, int srcy, | ||
| 107 | int dstx, int dsty, | ||
| 108 | int width, int height, | ||
| 109 | byte[] mask, int maskoff, int maskscan); | ||
| 110 | |||
| 111 | static { | ||
| 112 | GraphicsPrimitiveMgr.registerGeneral(new MaskBlit(null, null, null)); | ||
| 113 | } | ||
| 114 | |||
| 115 | public GraphicsPrimitive makePrimitive(SurfaceType srctype, | ||
| 116 | CompositeType comptype, | ||
| 117 | SurfaceType dsttype) | ||
| 118 | { | ||
| 119 | /* | ||
| 120 | new Throwable().printStackTrace(); | ||
| 121 | System.out.println("Constructing general maskblit for:"); | ||
| 122 | System.out.println("src: "+srctype); | ||
| 123 | System.out.println("comp: "+comptype); | ||
| 124 | System.out.println("dst: "+dsttype); | ||
| 125 | */ | ||
| 126 | |||
| 127 | if (CompositeType.Xor.equals(comptype)) { | ||
| 128 | throw new InternalError("Cannot construct MaskBlit for " + | ||
| 129 | "XOR mode"); | ||
| 130 | } | ||
| 131 | |||
| 132 | General ob = new General(srctype, comptype, dsttype); | ||
| 133 | setupGeneralBinaryOp(ob); | ||
| 134 | return ob; | ||
| 135 | } | ||
| 136 | |||
| 137 | private static class General | ||
| 138 | extends MaskBlit | ||
| 139 | implements GeneralBinaryOp | ||
| 140 | { | ||
| 141 | Blit convertsrc; | ||
| 142 | Blit convertdst; | ||
| 143 | MaskBlit performop; | ||
| 144 | Blit convertresult; | ||
| 145 | |||
| 146 | WeakReference srcTmp; | ||
| 147 | WeakReference dstTmp; | ||
| 148 | |||
| 149 | public General(SurfaceType srctype, | ||
| 150 | CompositeType comptype, | ||
| 151 | SurfaceType dsttype) | ||
| 152 | { | ||
| 153 | super(srctype, comptype, dsttype); | ||
| 154 | } | ||
| 155 | |||
| 156 | public void setPrimitives(Blit srcconverter, | ||
| 157 | Blit dstconverter, | ||
| 158 | GraphicsPrimitive genericop, | ||
| 159 | Blit resconverter) | ||
| 160 | { | ||
| 161 | this.convertsrc = srcconverter; | ||
| 162 | this.convertdst = dstconverter; | ||
| 163 | this.performop = (MaskBlit) genericop; | ||
| 164 | this.convertresult = resconverter; | ||
| 165 | } | ||
| 166 | |||
| 167 | public synchronized void MaskBlit(SurfaceData srcData, | ||
| 168 | SurfaceData dstData, | ||
| 169 | Composite comp, | ||
| 170 | Region clip, | ||
| 171 | int srcx, int srcy, | ||
| 172 | int dstx, int dsty, | ||
| 173 | int width, int height, | ||
| 174 | byte mask[], int offset, int scan) | ||
| 175 | { | ||
| 176 | SurfaceData src, dst; | ||
| 177 | Region opclip; | ||
| 178 | int sx, sy, dx, dy; | ||
| 179 | |||
| 180 | if (convertsrc == null) { | ||
| 181 | src = srcData; | ||
| 182 | sx = srcx; | ||
| 183 | sy = srcy; | ||
| 184 | } else { | ||
| 185 | SurfaceData cachedSrc = null; | ||
| 186 | if (srcTmp != null) { | ||
| 187 | cachedSrc = (SurfaceData) srcTmp.get(); | ||
| 188 | } | ||
| 189 | src = convertFrom(convertsrc, srcData, srcx, srcy, | ||
| 190 | width, height, cachedSrc); | ||
| 191 | sx = 0; | ||
| 192 | sy = 0; | ||
| 193 | if (src != cachedSrc) { | ||
| 194 | srcTmp = new WeakReference(src); | ||
| 195 | } | ||
| 196 | } | ||
| 197 | |||
| 198 | if (convertdst == null) { | ||
| 199 | dst = dstData; | ||
| 200 | dx = dstx; | ||
| 201 | dy = dsty; | ||
| 202 | opclip = clip; | ||
| 203 | } else { | ||
| 204 | // assert: convertresult != null | ||
| 205 | SurfaceData cachedDst = null; | ||
| 206 | if (dstTmp != null) { | ||
| 207 | cachedDst = (SurfaceData) dstTmp.get(); | ||
| 208 | } | ||
| 209 | dst = convertFrom(convertdst, dstData, dstx, dsty, | ||
| 210 | width, height, cachedDst); | ||
| 211 | dx = 0; | ||
| 212 | dy = 0; | ||
| 213 | opclip = null; | ||
| 214 | if (dst != cachedDst) { | ||
| 215 | dstTmp = new WeakReference(dst); | ||
| 216 | } | ||
| 217 | } | ||
| 218 | |||
| 219 | performop.MaskBlit(src, dst, comp, opclip, | ||
| 220 | sx, sy, dx, dy, width, height, | ||
| 221 | mask, offset, scan); | ||
| 222 | |||
| 223 | if (convertresult != null) { | ||
| 224 | // assert: convertdst != null | ||
| 225 | convertTo(convertresult, dst, dstData, clip, | ||
| 226 | dstx, dsty, width, height); | ||
| 227 | } | ||
| 228 | } | ||
| 229 | } | ||
| 230 | |||
| 231 | public GraphicsPrimitive traceWrap() { | ||
| 232 | return new TraceMaskBlit(this); | ||
| 233 | } | ||
| 234 | |||
| 235 | private static class TraceMaskBlit extends MaskBlit { | ||
| 236 | MaskBlit target; | ||
| 237 | |||
| 238 | public TraceMaskBlit(MaskBlit target) { | ||
| 239 | // We need to have the same NativePrim as our | ||
| 240 | // target in case we are used with a TransformHelper | ||
| 241 | super(target.getNativePrim(), | ||
| 242 | target.getSourceType(), | ||
| 243 | target.getCompositeType(), | ||
| 244 | target.getDestType()); | ||
| 245 | this.target = target; | ||
| 246 | } | ||
| 247 | |||
| 248 | public GraphicsPrimitive traceWrap() { | ||
| 249 | return this; | ||
| 250 | } | ||
| 251 | |||
| 252 | public void MaskBlit(SurfaceData src, SurfaceData dst, | ||
| 253 | Composite comp, Region clip, | ||
| 254 | int srcx, int srcy, int dstx, int dsty, | ||
| 255 | int width, int height, | ||
| 256 | byte[] mask, int maskoff, int maskscan) | ||
| 257 | { | ||
| 258 | tracePrimitive(target); | ||
| 259 | target.MaskBlit(src, dst, comp, clip, | ||
| 260 | srcx, srcy, dstx, dsty, width, height, | ||
| 261 | mask, maskoff, maskscan); | ||
| 262 | } | ||
| 263 | } | ||
| 264 | } | ||