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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 | +} | |