J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2004 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.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 | } |