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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2007, 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 java.awt; | ||
| 27 | |||
| 28 | import java.awt.image.BufferedImage; | ||
| 29 | import java.awt.image.Raster; | ||
| 30 | import java.awt.image.WritableRaster; | ||
| 31 | import java.awt.image.ColorModel; | ||
| 32 | import java.awt.image.DirectColorModel; | ||
| 33 | import java.awt.image.IndexColorModel; | ||
| 34 | import java.awt.geom.AffineTransform; | ||
| 35 | import java.awt.geom.NoninvertibleTransformException; | ||
| 36 | import java.lang.ref.WeakReference; | ||
| 37 | import sun.awt.image.SunWritableRaster; | ||
| 38 | import sun.awt.image.IntegerInterleavedRaster; | ||
| 39 | import sun.awt.image.ByteInterleavedRaster; | ||
| 40 | |||
| 41 | abstract class TexturePaintContext implements PaintContext { | ||
| 42 | public static ColorModel xrgbmodel = | ||
| 43 | new DirectColorModel(24, 0xff0000, 0xff00, 0xff); | ||
| 44 | public static ColorModel argbmodel = ColorModel.getRGBdefault(); | ||
| 45 | |||
| 46 | ColorModel colorModel; | ||
| 47 | int bWidth; | ||
| 48 | int bHeight; | ||
| 49 | int maxWidth; | ||
| 50 | |||
| 51 | WritableRaster outRas; | ||
| 52 | |||
| 53 | double xOrg; | ||
| 54 | double yOrg; | ||
| 55 | double incXAcross; | ||
| 56 | double incYAcross; | ||
| 57 | double incXDown; | ||
| 58 | double incYDown; | ||
| 59 | |||
| 60 | int colincx; | ||
| 61 | int colincy; | ||
| 62 | int colincxerr; | ||
| 63 | int colincyerr; | ||
| 64 | int rowincx; | ||
| 65 | int rowincy; | ||
| 66 | int rowincxerr; | ||
| 67 | int rowincyerr; | ||
| 68 | |||
| 69 | public static PaintContext getContext(BufferedImage bufImg, | ||
| 70 | AffineTransform xform, | ||
| 71 | RenderingHints hints, | ||
| 72 | Rectangle devBounds) { | ||
| 73 | WritableRaster raster = bufImg.getRaster(); | ||
| 74 | ColorModel cm = bufImg.getColorModel(); | ||
| 75 | int maxw = devBounds.width; | ||
| 76 | Object val = hints.get(hints.KEY_INTERPOLATION); | ||
| 77 | boolean filter = | ||
| 78 | (val == null | ||
| 79 | ? (hints.get(hints.KEY_RENDERING) == hints.VALUE_RENDER_QUALITY) | ||
| 80 | : (val != hints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR)); | ||
| 81 | if (raster instanceof IntegerInterleavedRaster && | ||
| 82 | (!filter || isFilterableDCM(cm))) | ||
| 83 | { | ||
| 84 | IntegerInterleavedRaster iir = (IntegerInterleavedRaster) raster; | ||
| 85 | if (iir.getNumDataElements() == 1 && iir.getPixelStride() == 1) { | ||
| 86 | return new Int(iir, cm, xform, maxw, filter); | ||
| 87 | } | ||
| 88 | } else if (raster instanceof ByteInterleavedRaster) { | ||
| 89 | ByteInterleavedRaster bir = (ByteInterleavedRaster) raster; | ||
| 90 | if (bir.getNumDataElements() == 1 && bir.getPixelStride() == 1) { | ||
| 91 | if (filter) { | ||
| 92 | if (isFilterableICM(cm)) { | ||
| 93 | return new ByteFilter(bir, cm, xform, maxw); | ||
| 94 | } | ||
| 95 | } else { | ||
| 96 | return new Byte(bir, cm, xform, maxw); | ||
| 97 | } | ||
| 98 | } | ||
| 99 | } | ||
| 100 | return new Any(raster, cm, xform, maxw, filter); | ||
| 101 | } | ||
| 102 | |||
| 103 | public static boolean isFilterableICM(ColorModel cm) { | ||
| 104 | if (cm instanceof IndexColorModel) { | ||
| 105 | IndexColorModel icm = (IndexColorModel) cm; | ||
| 106 | if (icm.getMapSize() <= 256) { | ||
| 107 | return true; | ||
| 108 | } | ||
| 109 | } | ||
| 110 | return false; | ||
| 111 | } | ||
| 112 | |||
| 113 | public static boolean isFilterableDCM(ColorModel cm) { | ||
| 114 | if (cm instanceof DirectColorModel) { | ||
| 115 | DirectColorModel dcm = (DirectColorModel) cm; | ||
| 116 | return (isMaskOK(dcm.getAlphaMask(), true) && | ||
| 117 | isMaskOK(dcm.getRedMask(), false) && | ||
| 118 | isMaskOK(dcm.getGreenMask(), false) && | ||
| 119 | isMaskOK(dcm.getBlueMask(), false)); | ||
| 120 | } | ||
| 121 | return false; | ||
| 122 | } | ||
| 123 | |||
| 124 | public static boolean isMaskOK(int mask, boolean canbezero) { | ||
| 125 | if (canbezero && mask == 0) { | ||
| 126 | return true; | ||
| 127 | } | ||
| 128 | return (mask == 0xff || | ||
| 129 | mask == 0xff00 || | ||
| 130 | mask == 0xff0000 || | ||
| 131 | mask == 0xff000000); | ||
| 132 | } | ||
| 133 | |||
| 134 | public static ColorModel getInternedColorModel(ColorModel cm) { | ||
| 135 | if (xrgbmodel == cm || xrgbmodel.equals(cm)) { | ||
| 136 | return xrgbmodel; | ||
| 137 | } | ||
| 138 | if (argbmodel == cm || argbmodel.equals(cm)) { | ||
| 139 | return argbmodel; | ||
| 140 | } | ||
| 141 | return cm; | ||
| 142 | } | ||
| 143 | |||
| 144 | TexturePaintContext(ColorModel cm, AffineTransform xform, | ||
| 145 | int bWidth, int bHeight, int maxw) { | ||
| 146 | this.colorModel = getInternedColorModel(cm); | ||
| 147 | this.bWidth = bWidth; | ||
| 148 | this.bHeight = bHeight; | ||
| 149 | this.maxWidth = maxw; | ||
| 150 | |||
| 151 | try { | ||
| 152 | xform = xform.createInverse(); | ||
| 153 | } catch (NoninvertibleTransformException e) { | ||
| 154 | xform.setToScale(0, 0); | ||
| 155 | } | ||
| 156 | this.incXAcross = mod(xform.getScaleX(), bWidth); | ||
| 157 | this.incYAcross = mod(xform.getShearY(), bHeight); | ||
| 158 | this.incXDown = mod(xform.getShearX(), bWidth); | ||
| 159 | this.incYDown = mod(xform.getScaleY(), bHeight); | ||
| 160 | this.xOrg = xform.getTranslateX(); | ||
| 161 | this.yOrg = xform.getTranslateY(); | ||
| 162 | this.colincx = (int) incXAcross; | ||
| 163 | this.colincy = (int) incYAcross; | ||
| 164 | this.colincxerr = fractAsInt(incXAcross); | ||
| 165 | this.colincyerr = fractAsInt(incYAcross); | ||
| 166 | this.rowincx = (int) incXDown; | ||
| 167 | this.rowincy = (int) incYDown; | ||
| 168 | this.rowincxerr = fractAsInt(incXDown); | ||
| 169 | this.rowincyerr = fractAsInt(incYDown); | ||
| 170 | |||
| 171 | } | ||
| 172 | |||
| 173 | static int fractAsInt(double d) { | ||
| 174 | return (int) ((d % 1.0) * Integer.MAX_VALUE); | ||
| 175 | } | ||
| 176 | |||
| 177 | static double mod(double num, double den) { | ||
| 178 | num = num % den; | ||
| 179 | if (num < 0) { | ||
| 180 | num += den; | ||
| 181 | if (num >= den) { | ||
| 182 | // For very small negative numerators, the answer might | ||
| 183 | // be such a tiny bit less than den that the difference | ||
| 184 | // is smaller than the mantissa of a double allows and | ||
| 185 | // the result would then be rounded to den. If that is | ||
| 186 | // the case then we map that number to 0 as the nearest | ||
| 187 | // modulus representation. | ||
| 188 | num = 0; | ||
| 189 | } | ||
| 190 | } | ||
| 191 | return num; | ||
| 192 | } | ||
| 193 | |||
| 194 | /** | ||
| 195 | * Release the resources allocated for the operation. | ||
| 196 | */ | ||
| 197 | public void dispose() { | ||
| 198 | dropRaster(colorModel, outRas); | ||
| 199 | } | ||
| 200 | |||
| 201 | /** | ||
| 202 | * Return the ColorModel of the output. | ||
| 203 | */ | ||
| 204 | public ColorModel getColorModel() { | ||
| 205 | return colorModel; | ||
| 206 | } | ||
| 207 | |||
| 208 | /** | ||
| 209 | * Return a Raster containing the colors generated for the graphics | ||
| 210 | * operation. | ||
| 211 | * @param x,y,w,h The area in device space for which colors are | ||
| 212 | * generated. | ||
| 213 | */ | ||
| 214 | public Raster getRaster(int x, int y, int w, int h) { | ||
| 215 | if (outRas == null || | ||
| 216 | outRas.getWidth() < w || | ||
| 217 | outRas.getHeight() < h) | ||
| 218 | { | ||
| 219 | // If h==1, we will probably get lots of "scanline" rects | ||
| 220 | outRas = makeRaster((h == 1 ? Math.max(w, maxWidth) : w), h); | ||
| 221 | } | ||
| 222 | double X = mod(xOrg + x * incXAcross + y * incXDown, bWidth); | ||
| 223 | double Y = mod(yOrg + x * incYAcross + y * incYDown, bHeight); | ||
| 224 | |||
| 225 | setRaster((int) X, (int) Y, fractAsInt(X), fractAsInt(Y), | ||
| 226 | w, h, bWidth, bHeight, | ||
| 227 | colincx, colincxerr, | ||
| 228 | colincy, colincyerr, | ||
| 229 | rowincx, rowincxerr, | ||
| 230 | rowincy, rowincyerr); | ||
| 231 | |||
| 232 | SunWritableRaster.markDirty(outRas); | ||
| 233 | |||
| 234 | return outRas; | ||
| 235 | } | ||
| 236 | |||
| 237 | private static WeakReference xrgbRasRef; | ||
| 238 | private static WeakReference argbRasRef; | ||
| 239 | |||
| 240 | synchronized static WritableRaster makeRaster(ColorModel cm, | ||
| 241 | Raster srcRas, | ||
| 242 | int w, int h) | ||
| 243 | { | ||
| 244 | if (xrgbmodel == cm) { | ||
| 245 | if (xrgbRasRef != null) { | ||
| 246 | WritableRaster wr = (WritableRaster) xrgbRasRef.get(); | ||
| 247 | if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) { | ||
| 248 | xrgbRasRef = null; | ||
| 249 | return wr; | ||
| 250 | } | ||
| 251 | } | ||
| 252 | // If we are going to cache this Raster, make it non-tiny | ||
| 253 | if (w <= 32 && h <= 32) { | ||
| 254 | w = h = 32; | ||
| 255 | } | ||
| 256 | } else if (argbmodel == cm) { | ||
| 257 | if (argbRasRef != null) { | ||
| 258 | WritableRaster wr = (WritableRaster) argbRasRef.get(); | ||
| 259 | if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) { | ||
| 260 | argbRasRef = null; | ||
| 261 | return wr; | ||
| 262 | } | ||
| 263 | } | ||
| 264 | // If we are going to cache this Raster, make it non-tiny | ||
| 265 | if (w <= 32 && h <= 32) { | ||
| 266 | w = h = 32; | ||
| 267 | } | ||
| 268 | } | ||
| 269 | if (srcRas != null) { | ||
| 270 | return srcRas.createCompatibleWritableRaster(w, h); | ||
| 271 | } else { | ||
| 272 | return cm.createCompatibleWritableRaster(w, h); | ||
| 273 | } | ||
| 274 | } | ||
| 275 | |||
| 276 | synchronized static void dropRaster(ColorModel cm, Raster outRas) { | ||
| 277 | if (outRas == null) { | ||
| 278 | return; | ||
| 279 | } | ||
| 280 | if (xrgbmodel == cm) { | ||
| 281 | xrgbRasRef = new WeakReference(outRas); | ||
| 282 | } else if (argbmodel == cm) { | ||
| 283 | argbRasRef = new WeakReference(outRas); | ||
| 284 | } | ||
| 285 | } | ||
| 286 | |||
| 287 | private static WeakReference byteRasRef; | ||
| 288 | |||
| 289 | synchronized static WritableRaster makeByteRaster(Raster srcRas, | ||
| 290 | int w, int h) | ||
| 291 | { | ||
| 292 | if (byteRasRef != null) { | ||
| 293 | WritableRaster wr = (WritableRaster) byteRasRef.get(); | ||
| 294 | if (wr != null && wr.getWidth() >= w && wr.getHeight() >= h) { | ||
| 295 | byteRasRef = null; | ||
| 296 | return wr; | ||
| 297 | } | ||
| 298 | } | ||
| 299 | // If we are going to cache this Raster, make it non-tiny | ||
| 300 | if (w <= 32 && h <= 32) { | ||
| 301 | w = h = 32; | ||
| 302 | } | ||
| 303 | return srcRas.createCompatibleWritableRaster(w, h); | ||
| 304 | } | ||
| 305 | |||
| 306 | synchronized static void dropByteRaster(Raster outRas) { | ||
| 307 | if (outRas == null) { | ||
| 308 | return; | ||
| 309 | } | ||
| 310 | byteRasRef = new WeakReference(outRas); | ||
| 311 | } | ||
| 312 | |||
| 313 | public abstract WritableRaster makeRaster(int w, int h); | ||
| 314 | public abstract void setRaster(int x, int y, int xerr, int yerr, | ||
| 315 | int w, int h, int bWidth, int bHeight, | ||
| 316 | int colincx, int colincxerr, | ||
| 317 | int colincy, int colincyerr, | ||
| 318 | int rowincx, int rowincxerr, | ||
| 319 | int rowincy, int rowincyerr); | ||
| 320 | |||
| 321 | /* | ||
| 322 | * Blends the four ARGB values in the rgbs array using the factors | ||
| 323 | * described by xmul and ymul in the following ratio: | ||
| 324 | * | ||
| 325 | * rgbs[0] * (1-xmul) * (1-ymul) + | ||
| 326 | * rgbs[1] * ( xmul) * (1-ymul) + | ||
| 327 | * rgbs[2] * (1-xmul) * ( ymul) + | ||
| 328 | * rgbs[3] * ( xmul) * ( ymul) | ||
| 329 | * | ||
| 330 | * xmul and ymul are integer values in the half-open range [0, 2^31) | ||
| 331 | * where 0 == 0.0 and 2^31 == 1.0. | ||
| 332 | * | ||
| 333 | * Note that since the range is half-open, the values are always | ||
| 334 | * logically less than 1.0. This makes sense because while choosing | ||
| 335 | * pixels to blend, when the error values reach 1.0 we move to the | ||
| 336 | * next pixel and reset them to 0.0. | ||
| 337 | */ | ||
| 338 | public static int blend(int rgbs[], int xmul, int ymul) { | ||
| 339 | // xmul/ymul are 31 bits wide, (0 => 2^31-1) | ||
| 340 | // shift them to 12 bits wide, (0 => 2^12-1) | ||
| 341 | xmul = (xmul >>> 19); | ||
| 342 | ymul = (ymul >>> 19); | ||
| 343 | int accumA, accumR, accumG, accumB; | ||
| 344 | accumA = accumR = accumG = accumB = 0; | ||
| 345 | for (int i = 0; i < 4; i++) { | ||
| 346 | int rgb = rgbs[i]; | ||
| 347 | // The complement of the [xy]mul values (1-[xy]mul) can result | ||
| 348 | // in new values in the range (1 => 2^12). Thus for any given | ||
| 349 | // loop iteration, the values could be anywhere in (0 => 2^12). | ||
| 350 | xmul = (1<<12) - xmul; | ||
| 351 | if ((i & 1) == 0) { | ||
| 352 | ymul = (1<<12) - ymul; | ||
| 353 | } | ||
| 354 | // xmul and ymul are each 12 bits (0 => 2^12) | ||
| 355 | // factor is thus 24 bits (0 => 2^24) | ||
| 356 | int factor = xmul * ymul; | ||
| 357 | if (factor != 0) { | ||
| 358 | // accum variables will accumulate 32 bits | ||
| 359 | // bytes extracted from rgb fit in 8 bits (0 => 255) | ||
| 360 | // byte * factor thus fits in 32 bits (0 => 255 * 2^24) | ||
| 361 | accumA += (((rgb >>> 24) ) * factor); | ||
| 362 | accumR += (((rgb >>> 16) & 0xff) * factor); | ||
| 363 | accumG += (((rgb >>> 8) & 0xff) * factor); | ||
| 364 | accumB += (((rgb ) & 0xff) * factor); | ||
| 365 | } | ||
| 366 | } | ||
| 367 | return ((((accumA + (1<<23)) >>> 24) << 24) | | ||
| 368 | (((accumR + (1<<23)) >>> 24) << 16) | | ||
| 369 | (((accumG + (1<<23)) >>> 24) << 8) | | ||
| 370 | (((accumB + (1<<23)) >>> 24) )); | ||
| 371 | } | ||
| 372 | |||
| 373 | static class Int extends TexturePaintContext { | ||
| 374 | IntegerInterleavedRaster srcRas; | ||
| 375 | int inData[]; | ||
| 376 | int inOff; | ||
| 377 | int inSpan; | ||
| 378 | int outData[]; | ||
| 379 | int outOff; | ||
| 380 | int outSpan; | ||
| 381 | boolean filter; | ||
| 382 | |||
| 383 | public Int(IntegerInterleavedRaster srcRas, ColorModel cm, | ||
| 384 | AffineTransform xform, int maxw, boolean filter) | ||
| 385 | { | ||
| 386 | super(cm, xform, srcRas.getWidth(), srcRas.getHeight(), maxw); | ||
| 387 | this.srcRas = srcRas; | ||
| 388 | this.inData = srcRas.getDataStorage(); | ||
| 389 | this.inSpan = srcRas.getScanlineStride(); | ||
| 390 | this.inOff = srcRas.getDataOffset(0); | ||
| 391 | this.filter = filter; | ||
| 392 | } | ||
| 393 | |||
| 394 | public WritableRaster makeRaster(int w, int h) { | ||
| 395 | WritableRaster ras = makeRaster(colorModel, srcRas, w, h); | ||
| 396 | IntegerInterleavedRaster iiRas = (IntegerInterleavedRaster) ras; | ||
| 397 | outData = iiRas.getDataStorage(); | ||
| 398 | outSpan = iiRas.getScanlineStride(); | ||
| 399 | outOff = iiRas.getDataOffset(0); | ||
| 400 | return ras; | ||
| 401 | } | ||
| 402 | |||
| 403 | public void setRaster(int x, int y, int xerr, int yerr, | ||
| 404 | int w, int h, int bWidth, int bHeight, | ||
| 405 | int colincx, int colincxerr, | ||
| 406 | int colincy, int colincyerr, | ||
| 407 | int rowincx, int rowincxerr, | ||
| 408 | int rowincy, int rowincyerr) { | ||
| 409 | int[] inData = this.inData; | ||
| 410 | int[] outData = this.outData; | ||
| 411 | int out = outOff; | ||
| 412 | int inSpan = this.inSpan; | ||
| 413 | int inOff = this.inOff; | ||
| 414 | int outSpan = this.outSpan; | ||
| 415 | boolean filter = this.filter; | ||
| 416 | boolean normalx = (colincx == 1 && colincxerr == 0 && | ||
| 417 | colincy == 0 && colincyerr == 0) && !filter; | ||
| 418 | int rowx = x; | ||
| 419 | int rowy = y; | ||
| 420 | int rowxerr = xerr; | ||
| 421 | int rowyerr = yerr; | ||
| 422 | if (normalx) { | ||
| 423 | outSpan -= w; | ||
| 424 | } | ||
| 425 | int rgbs[] = filter ? new int[4] : null; | ||
| 426 | for (int j = 0; j < h; j++) { | ||
| 427 | if (normalx) { | ||
| 428 | int in = inOff + rowy * inSpan + bWidth; | ||
| 429 | x = bWidth - rowx; | ||
| 430 | out += w; | ||
| 431 | if (bWidth >= 32) { | ||
| 432 | int i = w; | ||
| 433 | while (i > 0) { | ||
| 434 | int copyw = (i < x) ? i : x; | ||
| 435 | System.arraycopy(inData, in - x, | ||
| 436 | outData, out - i, | ||
| 437 | copyw); | ||
| 438 | i -= copyw; | ||
| 439 | if ((x -= copyw) == 0) { | ||
| 440 | x = bWidth; | ||
| 441 | } | ||
| 442 | } | ||
| 443 | } else { | ||
| 444 | for (int i = w; i > 0; i--) { | ||
| 445 | outData[out - i] = inData[in - x]; | ||
| 446 | if (--x == 0) { | ||
| 447 | x = bWidth; | ||
| 448 | } | ||
| 449 | } | ||
| 450 | } | ||
| 451 | } else { | ||
| 452 | x = rowx; | ||
| 453 | y = rowy; | ||
| 454 | xerr = rowxerr; | ||
| 455 | yerr = rowyerr; | ||
| 456 | for (int i = 0; i < w; i++) { | ||
| 457 | if (filter) { | ||
| 458 | int nextx, nexty; | ||
| 459 | if ((nextx = x + 1) >= bWidth) { | ||
| 460 | nextx = 0; | ||
| 461 | } | ||
| 462 | if ((nexty = y + 1) >= bHeight) { | ||
| 463 | nexty = 0; | ||
| 464 | } | ||
| 465 | rgbs[0] = inData[inOff + y * inSpan + x]; | ||
| 466 | rgbs[1] = inData[inOff + y * inSpan + nextx]; | ||
| 467 | rgbs[2] = inData[inOff + nexty * inSpan + x]; | ||
| 468 | rgbs[3] = inData[inOff + nexty * inSpan + nextx]; | ||
| 469 | outData[out + i] = | ||
| 470 | TexturePaintContext.blend(rgbs, xerr, yerr); | ||
| 471 | } else { | ||
| 472 | outData[out + i] = inData[inOff + y * inSpan + x]; | ||
| 473 | } | ||
| 474 | if ((xerr += colincxerr) < 0) { | ||
| 475 | xerr &= Integer.MAX_VALUE; | ||
| 476 | x++; | ||
| 477 | } | ||
| 478 | if ((x += colincx) >= bWidth) { | ||
| 479 | x -= bWidth; | ||
| 480 | } | ||
| 481 | if ((yerr += colincyerr) < 0) { | ||
| 482 | yerr &= Integer.MAX_VALUE; | ||
| 483 | y++; | ||
| 484 | } | ||
| 485 | if ((y += colincy) >= bHeight) { | ||
| 486 | y -= bHeight; | ||
| 487 | } | ||
| 488 | } | ||
| 489 | } | ||
| 490 | if ((rowxerr += rowincxerr) < 0) { | ||
| 491 | rowxerr &= Integer.MAX_VALUE; | ||
| 492 | rowx++; | ||
| 493 | } | ||
| 494 | if ((rowx += rowincx) >= bWidth) { | ||
| 495 | rowx -= bWidth; | ||
| 496 | } | ||
| 497 | if ((rowyerr += rowincyerr) < 0) { | ||
| 498 | rowyerr &= Integer.MAX_VALUE; | ||
| 499 | rowy++; | ||
| 500 | } | ||
| 501 | if ((rowy += rowincy) >= bHeight) { | ||
| 502 | rowy -= bHeight; | ||
| 503 | } | ||
| 504 | out += outSpan; | ||
| 505 | } | ||
| 506 | } | ||
| 507 | } | ||
| 508 | |||
| 509 | static class Byte extends TexturePaintContext { | ||
| 510 | ByteInterleavedRaster srcRas; | ||
| 511 | byte inData[]; | ||
| 512 | int inOff; | ||
| 513 | int inSpan; | ||
| 514 | byte outData[]; | ||
| 515 | int outOff; | ||
| 516 | int outSpan; | ||
| 517 | |||
| 518 | public Byte(ByteInterleavedRaster srcRas, ColorModel cm, | ||
| 519 | AffineTransform xform, int maxw) | ||
| 520 | { | ||
| 521 | super(cm, xform, srcRas.getWidth(), srcRas.getHeight(), maxw); | ||
| 522 | this.srcRas = srcRas; | ||
| 523 | this.inData = srcRas.getDataStorage(); | ||
| 524 | this.inSpan = srcRas.getScanlineStride(); | ||
| 525 | this.inOff = srcRas.getDataOffset(0); | ||
| 526 | } | ||
| 527 | |||
| 528 | public WritableRaster makeRaster(int w, int h) { | ||
| 529 | WritableRaster ras = makeByteRaster(srcRas, w, h); | ||
| 530 | ByteInterleavedRaster biRas = (ByteInterleavedRaster) ras; | ||
| 531 | outData = biRas.getDataStorage(); | ||
| 532 | outSpan = biRas.getScanlineStride(); | ||
| 533 | outOff = biRas.getDataOffset(0); | ||
| 534 | return ras; | ||
| 535 | } | ||
| 536 | |||
| 537 | public void dispose() { | ||
| 538 | dropByteRaster(outRas); | ||
| 539 | } | ||
| 540 | |||
| 541 | public void setRaster(int x, int y, int xerr, int yerr, | ||
| 542 | int w, int h, int bWidth, int bHeight, | ||
| 543 | int colincx, int colincxerr, | ||
| 544 | int colincy, int colincyerr, | ||
| 545 | int rowincx, int rowincxerr, | ||
| 546 | int rowincy, int rowincyerr) { | ||
| 547 | byte[] inData = this.inData; | ||
| 548 | byte[] outData = this.outData; | ||
| 549 | int out = outOff; | ||
| 550 | int inSpan = this.inSpan; | ||
| 551 | int inOff = this.inOff; | ||
| 552 | int outSpan = this.outSpan; | ||
| 553 | boolean normalx = (colincx == 1 && colincxerr == 0 && | ||
| 554 | colincy == 0 && colincyerr == 0); | ||
| 555 | int rowx = x; | ||
| 556 | int rowy = y; | ||
| 557 | int rowxerr = xerr; | ||
| 558 | int rowyerr = yerr; | ||
| 559 | if (normalx) { | ||
| 560 | outSpan -= w; | ||
| 561 | } | ||
| 562 | for (int j = 0; j < h; j++) { | ||
| 563 | if (normalx) { | ||
| 564 | int in = inOff + rowy * inSpan + bWidth; | ||
| 565 | x = bWidth - rowx; | ||
| 566 | out += w; | ||
| 567 | if (bWidth >= 32) { | ||
| 568 | int i = w; | ||
| 569 | while (i > 0) { | ||
| 570 | int copyw = (i < x) ? i : x; | ||
| 571 | System.arraycopy(inData, in - x, | ||
| 572 | outData, out - i, | ||
| 573 | copyw); | ||
| 574 | i -= copyw; | ||
| 575 | if ((x -= copyw) == 0) { | ||
| 576 | x = bWidth; | ||
| 577 | } | ||
| 578 | } | ||
| 579 | } else { | ||
| 580 | for (int i = w; i > 0; i--) { | ||
| 581 | outData[out - i] = inData[in - x]; | ||
| 582 | if (--x == 0) { | ||
| 583 | x = bWidth; | ||
| 584 | } | ||
| 585 | } | ||
| 586 | } | ||
| 587 | } else { | ||
| 588 | x = rowx; | ||
| 589 | y = rowy; | ||
| 590 | xerr = rowxerr; | ||
| 591 | yerr = rowyerr; | ||
| 592 | for (int i = 0; i < w; i++) { | ||
| 593 | outData[out + i] = inData[inOff + y * inSpan + x]; | ||
| 594 | if ((xerr += colincxerr) < 0) { | ||
| 595 | xerr &= Integer.MAX_VALUE; | ||
| 596 | x++; | ||
| 597 | } | ||
| 598 | if ((x += colincx) >= bWidth) { | ||
| 599 | x -= bWidth; | ||
| 600 | } | ||
| 601 | if ((yerr += colincyerr) < 0) { | ||
| 602 | yerr &= Integer.MAX_VALUE; | ||
| 603 | y++; | ||
| 604 | } | ||
| 605 | if ((y += colincy) >= bHeight) { | ||
| 606 | y -= bHeight; | ||
| 607 | } | ||
| 608 | } | ||
| 609 | } | ||
| 610 | if ((rowxerr += rowincxerr) < 0) { | ||
| 611 | rowxerr &= Integer.MAX_VALUE; | ||
| 612 | rowx++; | ||
| 613 | } | ||
| 614 | if ((rowx += rowincx) >= bWidth) { | ||
| 615 | rowx -= bWidth; | ||
| 616 | } | ||
| 617 | if ((rowyerr += rowincyerr) < 0) { | ||
| 618 | rowyerr &= Integer.MAX_VALUE; | ||
| 619 | rowy++; | ||
| 620 | } | ||
| 621 | if ((rowy += rowincy) >= bHeight) { | ||
| 622 | rowy -= bHeight; | ||
| 623 | } | ||
| 624 | out += outSpan; | ||
| 625 | } | ||
| 626 | } | ||
| 627 | } | ||
| 628 | |||
| 629 | static class ByteFilter extends TexturePaintContext { | ||
| 630 | ByteInterleavedRaster srcRas; | ||
| 631 | int inPalette[]; | ||
| 632 | byte inData[]; | ||
| 633 | int inOff; | ||
| 634 | int inSpan; | ||
| 635 | int outData[]; | ||
| 636 | int outOff; | ||
| 637 | int outSpan; | ||
| 638 | |||
| 639 | public ByteFilter(ByteInterleavedRaster srcRas, ColorModel cm, | ||
| 640 | AffineTransform xform, int maxw) | ||
| 641 | { | ||
| 642 | super((cm.getTransparency() == Transparency.OPAQUE | ||
| 643 | ? xrgbmodel : argbmodel), | ||
| 644 | xform, srcRas.getWidth(), srcRas.getHeight(), maxw); | ||
| 645 | this.inPalette = new int[256]; | ||
| 646 | ((IndexColorModel) cm).getRGBs(this.inPalette); | ||
| 647 | this.srcRas = srcRas; | ||
| 648 | this.inData = srcRas.getDataStorage(); | ||
| 649 | this.inSpan = srcRas.getScanlineStride(); | ||
| 650 | this.inOff = srcRas.getDataOffset(0); | ||
| 651 | } | ||
| 652 | |||
| 653 | public WritableRaster makeRaster(int w, int h) { | ||
| 654 | // Note that we do not pass srcRas to makeRaster since it | ||
| 655 | // is a Byte Raster and this colorModel needs an Int Raster | ||
| 656 | WritableRaster ras = makeRaster(colorModel, null, w, h); | ||
| 657 | IntegerInterleavedRaster iiRas = (IntegerInterleavedRaster) ras; | ||
| 658 | outData = iiRas.getDataStorage(); | ||
| 659 | outSpan = iiRas.getScanlineStride(); | ||
| 660 | outOff = iiRas.getDataOffset(0); | ||
| 661 | return ras; | ||
| 662 | } | ||
| 663 | |||
| 664 | public void setRaster(int x, int y, int xerr, int yerr, | ||
| 665 | int w, int h, int bWidth, int bHeight, | ||
| 666 | int colincx, int colincxerr, | ||
| 667 | int colincy, int colincyerr, | ||
| 668 | int rowincx, int rowincxerr, | ||
| 669 | int rowincy, int rowincyerr) { | ||
| 670 | byte[] inData = this.inData; | ||
| 671 | int[] outData = this.outData; | ||
| 672 | int out = outOff; | ||
| 673 | int inSpan = this.inSpan; | ||
| 674 | int inOff = this.inOff; | ||
| 675 | int outSpan = this.outSpan; | ||
| 676 | int rowx = x; | ||
| 677 | int rowy = y; | ||
| 678 | int rowxerr = xerr; | ||
| 679 | int rowyerr = yerr; | ||
| 680 | int rgbs[] = new int[4]; | ||
| 681 | for (int j = 0; j < h; j++) { | ||
| 682 | x = rowx; | ||
| 683 | y = rowy; | ||
| 684 | xerr = rowxerr; | ||
| 685 | yerr = rowyerr; | ||
| 686 | for (int i = 0; i < w; i++) { | ||
| 687 | int nextx, nexty; | ||
| 688 | if ((nextx = x + 1) >= bWidth) { | ||
| 689 | nextx = 0; | ||
| 690 | } | ||
| 691 | if ((nexty = y + 1) >= bHeight) { | ||
| 692 | nexty = 0; | ||
| 693 | } | ||
| 694 | rgbs[0] = inPalette[0xff & inData[inOff + x + | ||
| 695 | inSpan * y]]; | ||
| 696 | rgbs[1] = inPalette[0xff & inData[inOff + nextx + | ||
| 697 | inSpan * y]]; | ||
| 698 | rgbs[2] = inPalette[0xff & inData[inOff + x + | ||
| 699 | inSpan * nexty]]; | ||
| 700 | rgbs[3] = inPalette[0xff & inData[inOff + nextx + | ||
| 701 | inSpan * nexty]]; | ||
| 702 | outData[out + i] = | ||
| 703 | TexturePaintContext.blend(rgbs, xerr, yerr); | ||
| 704 | if ((xerr += colincxerr) < 0) { | ||
| 705 | xerr &= Integer.MAX_VALUE; | ||
| 706 | x++; | ||
| 707 | } | ||
| 708 | if ((x += colincx) >= bWidth) { | ||
| 709 | x -= bWidth; | ||
| 710 | } | ||
| 711 | if ((yerr += colincyerr) < 0) { | ||
| 712 | yerr &= Integer.MAX_VALUE; | ||
| 713 | y++; | ||
| 714 | } | ||
| 715 | if ((y += colincy) >= bHeight) { | ||
| 716 | y -= bHeight; | ||
| 717 | } | ||
| 718 | } | ||
| 719 | if ((rowxerr += rowincxerr) < 0) { | ||
| 720 | rowxerr &= Integer.MAX_VALUE; | ||
| 721 | rowx++; | ||
| 722 | } | ||
| 723 | if ((rowx += rowincx) >= bWidth) { | ||
| 724 | rowx -= bWidth; | ||
| 725 | } | ||
| 726 | if ((rowyerr += rowincyerr) < 0) { | ||
| 727 | rowyerr &= Integer.MAX_VALUE; | ||
| 728 | rowy++; | ||
| 729 | } | ||
| 730 | if ((rowy += rowincy) >= bHeight) { | ||
| 731 | rowy -= bHeight; | ||
| 732 | } | ||
| 733 | out += outSpan; | ||
| 734 | } | ||
| 735 | } | ||
| 736 | } | ||
| 737 | |||
| 738 | static class Any extends TexturePaintContext { | ||
| 739 | WritableRaster srcRas; | ||
| 740 | boolean filter; | ||
| 741 | |||
| 742 | public Any(WritableRaster srcRas, ColorModel cm, | ||
| 743 | AffineTransform xform, int maxw, boolean filter) | ||
| 744 | { | ||
| 745 | super(cm, xform, srcRas.getWidth(), srcRas.getHeight(), maxw); | ||
| 746 | this.srcRas = srcRas; | ||
| 747 | this.filter = filter; | ||
| 748 | } | ||
| 749 | |||
| 750 | public WritableRaster makeRaster(int w, int h) { | ||
| 751 | return makeRaster(colorModel, srcRas, w, h); | ||
| 752 | } | ||
| 753 | |||
| 754 | public void setRaster(int x, int y, int xerr, int yerr, | ||
| 755 | int w, int h, int bWidth, int bHeight, | ||
| 756 | int colincx, int colincxerr, | ||
| 757 | int colincy, int colincyerr, | ||
| 758 | int rowincx, int rowincxerr, | ||
| 759 | int rowincy, int rowincyerr) { | ||
| 760 | Object data = null; | ||
| 761 | int rowx = x; | ||
| 762 | int rowy = y; | ||
| 763 | int rowxerr = xerr; | ||
| 764 | int rowyerr = yerr; | ||
| 765 | WritableRaster srcRas = this.srcRas; | ||
| 766 | WritableRaster outRas = this.outRas; | ||
| 767 | int rgbs[] = filter ? new int[4] : null; | ||
| 768 | for (int j = 0; j < h; j++) { | ||
| 769 | x = rowx; | ||
| 770 | y = rowy; | ||
| 771 | xerr = rowxerr; | ||
| 772 | yerr = rowyerr; | ||
| 773 | for (int i = 0; i < w; i++) { | ||
| 774 | data = srcRas.getDataElements(x, y, data); | ||
| 775 | if (filter) { | ||
| 776 | int nextx, nexty; | ||
| 777 | if ((nextx = x + 1) >= bWidth) { | ||
| 778 | nextx = 0; | ||
| 779 | } | ||
| 780 | if ((nexty = y + 1) >= bHeight) { | ||
| 781 | nexty = 0; | ||
| 782 | } | ||
| 783 | rgbs[0] = colorModel.getRGB(data); | ||
| 784 | data = srcRas.getDataElements(nextx, y, data); | ||
| 785 | rgbs[1] = colorModel.getRGB(data); | ||
| 786 | data = srcRas.getDataElements(x, nexty, data); | ||
| 787 | rgbs[2] = colorModel.getRGB(data); | ||
| 788 | data = srcRas.getDataElements(nextx, nexty, data); | ||
| 789 | rgbs[3] = colorModel.getRGB(data); | ||
| 790 | int rgb = | ||
| 791 | TexturePaintContext.blend(rgbs, xerr, yerr); | ||
| 792 | data = colorModel.getDataElements(rgb, data); | ||
| 793 | } | ||
| 794 | outRas.setDataElements(i, j, data); | ||
| 795 | if ((xerr += colincxerr) < 0) { | ||
| 796 | xerr &= Integer.MAX_VALUE; | ||
| 797 | x++; | ||
| 798 | } | ||
| 799 | if ((x += colincx) >= bWidth) { | ||
| 800 | x -= bWidth; | ||
| 801 | } | ||
| 802 | if ((yerr += colincyerr) < 0) { | ||
| 803 | yerr &= Integer.MAX_VALUE; | ||
| 804 | y++; | ||
| 805 | } | ||
| 806 | if ((y += colincy) >= bHeight) { | ||
| 807 | y -= bHeight; | ||
| 808 | } | ||
| 809 | } | ||
| 810 | if ((rowxerr += rowincxerr) < 0) { | ||
| 811 | rowxerr &= Integer.MAX_VALUE; | ||
| 812 | rowx++; | ||
| 813 | } | ||
| 814 | if ((rowx += rowincx) >= bWidth) { | ||
| 815 | rowx -= bWidth; | ||
| 816 | } | ||
| 817 | if ((rowyerr += rowincyerr) < 0) { | ||
| 818 | rowyerr &= Integer.MAX_VALUE; | ||
| 819 | rowy++; | ||
| 820 | } | ||
| 821 | if ((rowy += rowincy) >= bHeight) { | ||
| 822 | rowy -= bHeight; | ||
| 823 | } | ||
| 824 | } | ||
| 825 | } | ||
| 826 | } | ||
| 827 | } | ||