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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.awt.CompositeContext; | ||
| 30 | import java.awt.RenderingHints; | ||
| 31 | import java.awt.image.ColorModel; | ||
| 32 | import java.awt.image.Raster; | ||
| 33 | import java.awt.image.WritableRaster; | ||
| 34 | import java.lang.ref.WeakReference; | ||
| 35 | import sun.java2d.loops.GraphicsPrimitive; | ||
| 36 | import sun.java2d.SurfaceData; | ||
| 37 | import sun.java2d.pipe.Region; | ||
| 38 | import sun.java2d.pipe.SpanIterator; | ||
| 39 | |||
| 40 | /** | ||
| 41 | * Blit | ||
| 42 | * 1) copies rectangle of pixels from one surface to another | ||
| 43 | * 2) performs compositing of colors based upon a Composite | ||
| 44 | * parameter | ||
| 45 | * | ||
| 46 | * precise behavior is undefined if the source surface | ||
| 47 | * and the destination surface are the same surface | ||
| 48 | * with overlapping regions of pixels | ||
| 49 | */ | ||
| 50 | |||
| 51 | public class Blit extends GraphicsPrimitive | ||
| 52 | { | ||
| 53 | public static final String methodSignature = "Blit(...)".toString(); | ||
| 54 | |||
| 55 | public static final int primTypeID = makePrimTypeID(); | ||
| 56 | |||
| 57 | private static RenderCache blitcache = new RenderCache(20); | ||
| 58 | |||
| 59 | public static Blit locate(SurfaceType srctype, | ||
| 60 | CompositeType comptype, | ||
| 61 | SurfaceType dsttype) | ||
| 62 | { | ||
| 63 | return (Blit) | ||
| 64 | GraphicsPrimitiveMgr.locate(primTypeID, | ||
| 65 | srctype, comptype, dsttype); | ||
| 66 | } | ||
| 67 | |||
| 68 | public static Blit getFromCache(SurfaceType src, | ||
| 69 | CompositeType comp, | ||
| 70 | SurfaceType dst) | ||
| 71 | { | ||
| 72 | Object o = blitcache.get(src, comp, dst); | ||
| 73 | if (o != null) { | ||
| 74 | return (Blit) o; | ||
| 75 | } | ||
| 76 | |||
| 77 | Blit blit = locate(src, comp, dst); | ||
| 78 | if (blit == null) { | ||
| 79 | System.out.println("blit loop not found for:"); | ||
| 80 | System.out.println("src: "+src); | ||
| 81 | System.out.println("comp: "+comp); | ||
| 82 | System.out.println("dst: "+dst); | ||
| 83 | } else { | ||
| 84 | blitcache.put(src, comp, dst, blit); | ||
| 85 | } | ||
| 86 | return blit; | ||
| 87 | } | ||
| 88 | |||
| 89 | protected Blit(SurfaceType srctype, | ||
| 90 | CompositeType comptype, | ||
| 91 | SurfaceType dsttype) | ||
| 92 | { | ||
| 93 | super(methodSignature, primTypeID, srctype, comptype, dsttype); | ||
| 94 | } | ||
| 95 | |||
| 96 | public Blit(long pNativePrim, | ||
| 97 | SurfaceType srctype, | ||
| 98 | CompositeType comptype, | ||
| 99 | SurfaceType dsttype) | ||
| 100 | { | ||
| 101 | super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype); | ||
| 102 | } | ||
| 103 | |||
| 104 | /** | ||
| 105 | * All Blit implementors must have this invoker method | ||
| 106 | */ | ||
| 107 | public native void Blit(SurfaceData src, SurfaceData dst, | ||
| 108 | Composite comp, Region clip, | ||
| 109 | int srcx, int srcy, | ||
| 110 | int dstx, int dsty, | ||
| 111 | int width, int height); | ||
| 112 | |||
| 113 | static { | ||
| 114 | GraphicsPrimitiveMgr.registerGeneral(new Blit(null, null, null)); | ||
| 115 | } | ||
| 116 | |||
| 117 | public GraphicsPrimitive makePrimitive(SurfaceType srctype, | ||
| 118 | CompositeType comptype, | ||
| 119 | SurfaceType dsttype) | ||
| 120 | { | ||
| 121 | /* | ||
| 122 | System.out.println("Constructing general blit for:"); | ||
| 123 | System.out.println("src: "+srctype); | ||
| 124 | System.out.println("comp: "+comptype); | ||
| 125 | System.out.println("dst: "+dsttype); | ||
| 126 | */ | ||
| 127 | |||
| 128 | if (comptype.isDerivedFrom(CompositeType.Xor)) { | ||
| 129 | GeneralXorBlit gxb = new GeneralXorBlit(srctype, | ||
| 130 | comptype, | ||
| 131 | dsttype); | ||
| 132 | setupGeneralBinaryOp(gxb); | ||
| 133 | return gxb; | ||
| 134 | } else if (comptype.isDerivedFrom(CompositeType.AnyAlpha)) { | ||
| 135 | return new GeneralMaskBlit(srctype, comptype, dsttype); | ||
| 136 | } else { | ||
| 137 | return AnyBlit.instance; | ||
| 138 | } | ||
| 139 | } | ||
| 140 | |||
| 141 | private static class AnyBlit extends Blit { | ||
| 142 | public static AnyBlit instance = new AnyBlit(); | ||
| 143 | |||
| 144 | public AnyBlit() { | ||
| 145 | super(SurfaceType.Any, CompositeType.Any, SurfaceType.Any); | ||
| 146 | } | ||
| 147 | |||
| 148 | public void Blit(SurfaceData srcData, | ||
| 149 | SurfaceData dstData, | ||
| 150 | Composite comp, | ||
| 151 | Region clip, | ||
| 152 | int srcx, int srcy, | ||
| 153 | int dstx, int dsty, | ||
| 154 | int width, int height) | ||
| 155 | { | ||
| 156 | ColorModel srcCM = srcData.getColorModel(); | ||
| 157 | ColorModel dstCM = dstData.getColorModel(); | ||
| 158 | // REMIND: Should get RenderingHints from sg2d | ||
| 159 | CompositeContext ctx = comp.createContext(srcCM, dstCM, | ||
| 160 | new RenderingHints(null)); | ||
| 161 | Raster srcRas = srcData.getRaster(srcx, srcy, width, height); | ||
| 162 | WritableRaster dstRas = | ||
| 163 | (WritableRaster) dstData.getRaster(dstx, dsty, width, height); | ||
| 164 | |||
| 165 | if (clip == null) { | ||
| 166 | clip = Region.getInstanceXYWH(dstx, dsty, width, height); | ||
| 167 | } | ||
| 168 | int span[] = {dstx, dsty, dstx+width, dsty+height}; | ||
| 169 | SpanIterator si = clip.getSpanIterator(span); | ||
| 170 | srcx -= dstx; | ||
| 171 | srcy -= dsty; | ||
| 172 | while (si.nextSpan(span)) { | ||
| 173 | int w = span[2] - span[0]; | ||
| 174 | int h = span[3] - span[1]; | ||
| 175 | srcRas = srcRas.createChild(srcx + span[0], srcy + span[1], | ||
| 176 | w, h, 0, 0, null); | ||
| 177 | dstRas = dstRas.createWritableChild(span[0], span[1], | ||
| 178 | w, h, 0, 0, null); | ||
| 179 | ctx.compose(srcRas, dstRas, dstRas); | ||
| 180 | } | ||
| 181 | ctx.dispose(); | ||
| 182 | } | ||
| 183 | } | ||
| 184 | |||
| 185 | private static class GeneralMaskBlit extends Blit { | ||
| 186 | MaskBlit performop; | ||
| 187 | |||
| 188 | public GeneralMaskBlit(SurfaceType srctype, | ||
| 189 | CompositeType comptype, | ||
| 190 | SurfaceType dsttype) | ||
| 191 | { | ||
| 192 | super(srctype, comptype, dsttype); | ||
| 193 | performop = MaskBlit.locate(srctype, comptype, dsttype); | ||
| 194 | } | ||
| 195 | |||
| 196 | public void Blit(SurfaceData srcData, | ||
| 197 | SurfaceData dstData, | ||
| 198 | Composite comp, | ||
| 199 | Region clip, | ||
| 200 | int srcx, int srcy, | ||
| 201 | int dstx, int dsty, | ||
| 202 | int width, int height) | ||
| 203 | { | ||
| 204 | performop.MaskBlit(srcData, dstData, comp, clip, | ||
| 205 | srcx, srcy, dstx, dsty, | ||
| 206 | width, height, | ||
| 207 | null, 0, 0); | ||
| 208 | } | ||
| 209 | } | ||
| 210 | |||
| 211 | private static class GeneralXorBlit | ||
| 212 | extends Blit | ||
| 213 | implements GeneralBinaryOp | ||
| 214 | { | ||
| 215 | Blit convertsrc; | ||
| 216 | Blit convertdst; | ||
| 217 | Blit performop; | ||
| 218 | Blit convertresult; | ||
| 219 | |||
| 220 | WeakReference srcTmp; | ||
| 221 | WeakReference dstTmp; | ||
| 222 | |||
| 223 | public GeneralXorBlit(SurfaceType srctype, | ||
| 224 | CompositeType comptype, | ||
| 225 | SurfaceType dsttype) | ||
| 226 | { | ||
| 227 | super(srctype, comptype, dsttype); | ||
| 228 | } | ||
| 229 | |||
| 230 | public void setPrimitives(Blit srcconverter, | ||
| 231 | Blit dstconverter, | ||
| 232 | GraphicsPrimitive genericop, | ||
| 233 | Blit resconverter) | ||
| 234 | { | ||
| 235 | this.convertsrc = srcconverter; | ||
| 236 | this.convertdst = dstconverter; | ||
| 237 | this.performop = (Blit) genericop; | ||
| 238 | this.convertresult = resconverter; | ||
| 239 | } | ||
| 240 | |||
| 241 | public synchronized void Blit(SurfaceData srcData, | ||
| 242 | SurfaceData dstData, | ||
| 243 | Composite comp, | ||
| 244 | Region clip, | ||
| 245 | int srcx, int srcy, | ||
| 246 | int dstx, int dsty, | ||
| 247 | int width, int height) | ||
| 248 | { | ||
| 249 | SurfaceData src, dst; | ||
| 250 | Region opclip; | ||
| 251 | int sx, sy, dx, dy; | ||
| 252 | |||
| 253 | if (convertsrc == null) { | ||
| 254 | src = srcData; | ||
| 255 | sx = srcx; | ||
| 256 | sy = srcy; | ||
| 257 | } else { | ||
| 258 | SurfaceData cachedSrc = null; | ||
| 259 | if (srcTmp != null) { | ||
| 260 | cachedSrc = (SurfaceData) srcTmp.get(); | ||
| 261 | } | ||
| 262 | src = convertFrom(convertsrc, srcData, srcx, srcy, | ||
| 263 | width, height, cachedSrc); | ||
| 264 | sx = 0; | ||
| 265 | sy = 0; | ||
| 266 | if (src != cachedSrc) { | ||
| 267 | srcTmp = new WeakReference(src); | ||
| 268 | } | ||
| 269 | } | ||
| 270 | |||
| 271 | if (convertdst == null) { | ||
| 272 | dst = dstData; | ||
| 273 | dx = dstx; | ||
| 274 | dy = dsty; | ||
| 275 | opclip = clip; | ||
| 276 | } else { | ||
| 277 | // assert: convertresult != null | ||
| 278 | SurfaceData cachedDst = null; | ||
| 279 | if (dstTmp != null) { | ||
| 280 | cachedDst = (SurfaceData) dstTmp.get(); | ||
| 281 | } | ||
| 282 | dst = convertFrom(convertdst, dstData, dstx, dsty, | ||
| 283 | width, height, cachedDst); | ||
| 284 | dx = 0; | ||
| 285 | dy = 0; | ||
| 286 | opclip = null; | ||
| 287 | if (dst != cachedDst) { | ||
| 288 | dstTmp = new WeakReference(dst); | ||
| 289 | } | ||
| 290 | } | ||
| 291 | |||
| 292 | performop.Blit(src, dst, comp, opclip, | ||
| 293 | sx, sy, dx, dy, | ||
| 294 | width, height); | ||
| 295 | |||
| 296 | if (convertresult != null) { | ||
| 297 | // assert: convertdst != null | ||
| 298 | convertTo(convertresult, dst, dstData, clip, | ||
| 299 | dstx, dsty, width, height); | ||
| 300 | } | ||
| 301 | } | ||
| 302 | } | ||
| 303 | |||
| 304 | public GraphicsPrimitive traceWrap() { | ||
| 305 | return new TraceBlit(this); | ||
| 306 | } | ||
| 307 | |||
| 308 | private static class TraceBlit extends Blit { | ||
| 309 | Blit target; | ||
| 310 | |||
| 311 | public TraceBlit(Blit target) { | ||
| 312 | super(target.getSourceType(), | ||
| 313 | target.getCompositeType(), | ||
| 314 | target.getDestType()); | ||
| 315 | this.target = target; | ||
| 316 | } | ||
| 317 | |||
| 318 | public GraphicsPrimitive traceWrap() { | ||
| 319 | return this; | ||
| 320 | } | ||
| 321 | |||
| 322 | public void Blit(SurfaceData src, SurfaceData dst, | ||
| 323 | Composite comp, Region clip, | ||
| 324 | int srcx, int srcy, int dstx, int dsty, | ||
| 325 | int width, int height) | ||
| 326 | { | ||
| 327 | tracePrimitive(target); | ||
| 328 | target.Blit(src, dst, comp, clip, | ||
| 329 | srcx, srcy, dstx, dsty, width, height); | ||
| 330 | } | ||
| 331 | } | ||
| 332 | } | ||