J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2007 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.awt.image; |
| 27 | import java.awt.image.Raster; |
| 28 | import java.awt.image.WritableRaster; |
| 29 | import java.awt.image.RasterFormatException; |
| 30 | import java.awt.image.SampleModel; |
| 31 | import java.awt.image.ComponentSampleModel; |
| 32 | import java.awt.image.PixelInterleavedSampleModel; |
| 33 | import java.awt.image.SinglePixelPackedSampleModel; |
| 34 | import java.awt.image.DataBuffer; |
| 35 | import java.awt.image.DataBufferByte; |
| 36 | import java.awt.Rectangle; |
| 37 | import java.awt.Point; |
| 38 | |
| 39 | /** |
| 40 | * This class defines a Raster with pixels consisting of one or more |
| 41 | * 8-bit data elements stored in close proximity to each other in a |
| 42 | * single byte array. |
| 43 | * <p> |
| 44 | * The bit precision per data element is that of the data type (that |
| 45 | * is, the bit precision for this Raster is 8). There is only one |
| 46 | * pixel stride and one scanline stride for all bands. This type of |
| 47 | * Raster can be used with a ComponentColorModel if there are multiple |
| 48 | * bands, or an IndexColorModel if there is only one band. |
| 49 | * |
| 50 | */ |
| 51 | public class ByteInterleavedRaster extends ByteComponentRaster { |
| 52 | |
| 53 | /** True if the data offsets range from 0 to (pixelStride - 1) in order. */ |
| 54 | boolean inOrder; |
| 55 | |
| 56 | /** |
| 57 | * The DataBuffer offset, minus sampleModelTranslateX*pixelStride, |
| 58 | * minus sampleModelTranslateY*scanlineStride, used to calculate |
| 59 | * pixel offsets. |
| 60 | */ |
| 61 | int dbOffset; |
| 62 | int dbOffsetPacked; |
| 63 | |
| 64 | /** True if a SinglePixelPackedSampleModel is being used. */ |
| 65 | boolean packed = false; |
| 66 | |
| 67 | /** If packed == true, the SampleModel's bit masks. */ |
| 68 | int[] bitMasks; |
| 69 | |
| 70 | /** If packed == true, the SampleModel's bit offsets. */ |
| 71 | int[] bitOffsets; |
| 72 | |
| 73 | /** A cached copy of minX + width for use in bounds checks. */ |
| 74 | private int maxX; |
| 75 | |
| 76 | /** A cached copy of minY + height for use in bounds checks. */ |
| 77 | private int maxY; |
| 78 | |
| 79 | /** |
| 80 | * Constructs a ByteInterleavedRaster with the given SampleModel. |
| 81 | * The Raster's upper left corner is origin and it is the same |
| 82 | * size as the SampleModel. A DataBuffer large enough to describe the |
| 83 | * Raster is automatically created. SampleModel must be of type |
| 84 | * SinglePixelPackedSampleModel or InterleavedSampleModel. |
| 85 | * @param sampleModel The SampleModel that specifies the layout. |
| 86 | * @param origin The Point that specified the origin. |
| 87 | */ |
| 88 | public ByteInterleavedRaster(SampleModel sampleModel, Point origin) { |
| 89 | this(sampleModel, |
| 90 | sampleModel.createDataBuffer(), |
| 91 | new Rectangle(origin.x, |
| 92 | origin.y, |
| 93 | sampleModel.getWidth(), |
| 94 | sampleModel.getHeight()), |
| 95 | origin, |
| 96 | null); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Constructs a ByteInterleavedRaster with the given SampleModel |
| 101 | * and DataBuffer. The Raster's upper left corner is origin and |
| 102 | * it is the same size as the SampleModel. The DataBuffer is not |
| 103 | * initialized and must be a DataBufferByte compatible with SampleModel. |
| 104 | * SampleModel must be of type SinglePixelPackedSampleModel |
| 105 | * or InterleavedSampleModel. |
| 106 | * @param sampleModel The SampleModel that specifies the layout. |
| 107 | * @param dataBuffer The DataBufferShort that contains the image data. |
| 108 | * @param origin The Point that specifies the origin. |
| 109 | */ |
| 110 | public ByteInterleavedRaster(SampleModel sampleModel, |
| 111 | DataBuffer dataBuffer, |
| 112 | Point origin) { |
| 113 | this(sampleModel, |
| 114 | dataBuffer, |
| 115 | new Rectangle(origin.x, |
| 116 | origin.y, |
| 117 | sampleModel.getWidth(), |
| 118 | sampleModel.getHeight()), |
| 119 | origin, |
| 120 | null); |
| 121 | } |
| 122 | |
| 123 | /*** Analyzes a ComponentSampleModel to determine if it can function |
| 124 | * as a PixelInterleavedSampleModel. In order to do so, it must use |
| 125 | * only bank 0 of its DataBuffer, and the data offsets must span a range |
| 126 | * of less than pixelStride. |
| 127 | * |
| 128 | * <p> These properties are trivially true for a 1-banded SampleModel. |
| 129 | */ |
| 130 | private boolean isInterleaved(ComponentSampleModel sm) { |
| 131 | // Analyze ComponentSampleModel to determine if it has the |
| 132 | // properties of a PixelInterleavedSampleModel |
| 133 | |
| 134 | int numBands = sampleModel.getNumBands(); |
| 135 | if (numBands == 1) { |
| 136 | return true; |
| 137 | } |
| 138 | |
| 139 | // Determine banks used |
| 140 | int[] bankIndices = sm.getBankIndices(); |
| 141 | for (int i = 0; i < numBands; i++) { |
| 142 | if (bankIndices[i] != 0) { |
| 143 | return false; |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | // Determine range of band offsets |
| 148 | int[] bandOffsets = sm.getBandOffsets(); |
| 149 | int minOffset = bandOffsets[0]; |
| 150 | int maxOffset = minOffset; |
| 151 | for (int i = 1; i < numBands; i++) { |
| 152 | int offset = bandOffsets[i]; |
| 153 | if (offset < minOffset) { |
| 154 | minOffset = offset; |
| 155 | } |
| 156 | if (offset > maxOffset) { |
| 157 | maxOffset = offset; |
| 158 | } |
| 159 | } |
| 160 | if (maxOffset - minOffset >= sm.getPixelStride()) { |
| 161 | return false; |
| 162 | } |
| 163 | |
| 164 | return true; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Constructs a ByteInterleavedRaster with the given SampleModel, |
| 169 | * DataBuffer, and parent. DataBuffer must be a DataBufferByte and |
| 170 | * SampleModel must be of type SinglePixelPackedSampleModel |
| 171 | * or InterleavedSampleModel. |
| 172 | * When translated into the base Raster's |
| 173 | * coordinate system, aRegion must be contained by the base Raster. |
| 174 | * Origin is the coordinate in the new Raster's coordinate system of |
| 175 | * the origin of the base Raster. (The base Raster is the Raster's |
| 176 | * ancestor which has no parent.) |
| 177 | * |
| 178 | * Note that this constructor should generally be called by other |
| 179 | * constructors or create methods, it should not be used directly. |
| 180 | * @param sampleModel The SampleModel that specifies the layout. |
| 181 | * @param dataBuffer The DataBufferShort that contains the image data. |
| 182 | * @param aRegion The Rectangle that specifies the image area. |
| 183 | * @param origin The Point that specifies the origin. |
| 184 | * @param parent The parent (if any) of this raster. |
| 185 | */ |
| 186 | public ByteInterleavedRaster(SampleModel sampleModel, |
| 187 | DataBuffer dataBuffer, |
| 188 | Rectangle aRegion, |
| 189 | Point origin, |
| 190 | ByteInterleavedRaster parent) { |
| 191 | super(sampleModel, dataBuffer, aRegion, origin, parent); |
| 192 | this.maxX = minX + width; |
| 193 | this.maxY = minY + height; |
| 194 | |
| 195 | if (!(dataBuffer instanceof DataBufferByte)) { |
| 196 | throw new RasterFormatException("ByteInterleavedRasters must have " + |
| 197 | "byte DataBuffers"); |
| 198 | } |
| 199 | |
| 200 | DataBufferByte dbb = (DataBufferByte)dataBuffer; |
| 201 | this.data = stealData(dbb, 0); |
| 202 | |
| 203 | int xOffset = aRegion.x - origin.x; |
| 204 | int yOffset = aRegion.y - origin.y; |
| 205 | if (sampleModel instanceof PixelInterleavedSampleModel || |
| 206 | (sampleModel instanceof ComponentSampleModel && |
| 207 | isInterleaved((ComponentSampleModel)sampleModel))) { |
| 208 | ComponentSampleModel csm = (ComponentSampleModel)sampleModel; |
| 209 | this.scanlineStride = csm.getScanlineStride(); |
| 210 | this.pixelStride = csm.getPixelStride(); |
| 211 | this.dataOffsets = csm.getBandOffsets(); |
| 212 | for (int i = 0; i < getNumDataElements(); i++) { |
| 213 | dataOffsets[i] += xOffset*pixelStride+yOffset*scanlineStride; |
| 214 | } |
| 215 | } else if (sampleModel instanceof SinglePixelPackedSampleModel) { |
| 216 | SinglePixelPackedSampleModel sppsm = |
| 217 | (SinglePixelPackedSampleModel)sampleModel; |
| 218 | this.packed = true; |
| 219 | this.bitMasks = sppsm.getBitMasks(); |
| 220 | this.bitOffsets = sppsm.getBitOffsets(); |
| 221 | this.scanlineStride = sppsm.getScanlineStride(); |
| 222 | this.pixelStride = 1; |
| 223 | this.dataOffsets = new int[1]; |
| 224 | this.dataOffsets[0] = dbb.getOffset(); |
| 225 | dataOffsets[0] += xOffset*pixelStride+yOffset*scanlineStride; |
| 226 | } else { |
| 227 | throw new RasterFormatException("ByteInterleavedRasters must " + |
| 228 | "have PixelInterleavedSampleModel, SinglePixelPackedSampleModel"+ |
| 229 | " or interleaved ComponentSampleModel. Sample model is " + |
| 230 | sampleModel); |
| 231 | } |
| 232 | this.bandOffset = this.dataOffsets[0]; |
| 233 | |
| 234 | this.dbOffsetPacked = dataBuffer.getOffset() - |
| 235 | sampleModelTranslateY*scanlineStride - |
| 236 | sampleModelTranslateX*pixelStride; |
| 237 | this.dbOffset = dbOffsetPacked - |
| 238 | (xOffset*pixelStride+yOffset*scanlineStride); |
| 239 | |
| 240 | // Set inOrder to true if the data elements are in order and |
| 241 | // have no gaps between them |
| 242 | this.inOrder = false; |
| 243 | if (numDataElements == pixelStride) { |
| 244 | inOrder = true; |
| 245 | for (int i = 1; i < numDataElements; i++) { |
| 246 | if (dataOffsets[i] - dataOffsets[0] != i) { |
| 247 | inOrder = false; |
| 248 | break; |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | verify(false); |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Returns a copy of the data offsets array. For each band the data offset |
| 258 | * is the index into the band's data array, of the first sample of the |
| 259 | * band. |
| 260 | */ |
| 261 | public int[] getDataOffsets() { |
| 262 | return (int[]) dataOffsets.clone(); |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Returns the data offset for the specified band. The data offset |
| 267 | * is the index into the data array |
| 268 | * in which the first sample of the first scanline is stored. |
| 269 | * @param band The band whose offset is returned. |
| 270 | */ |
| 271 | public int getDataOffset(int band) { |
| 272 | return dataOffsets[band]; |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * Returns the scanline stride -- the number of data array elements between |
| 277 | * a given sample and the sample in the same column of the next row in the |
| 278 | * same band. |
| 279 | */ |
| 280 | public int getScanlineStride() { |
| 281 | return scanlineStride; |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Returns pixel stride -- the number of data array elements between two |
| 286 | * samples for the same band on the same scanline. |
| 287 | */ |
| 288 | public int getPixelStride() { |
| 289 | return pixelStride; |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Returns a reference to the data array. |
| 294 | */ |
| 295 | public byte[] getDataStorage() { |
| 296 | return data; |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Returns the data elements for all bands at the specified |
| 301 | * location. |
| 302 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 303 | * if the pixel coordinate is out of bounds. |
| 304 | * A ClassCastException will be thrown if the input object is non null |
| 305 | * and references anything other than an array of transferType. |
| 306 | * @param x The X coordinate of the pixel location. |
| 307 | * @param y The Y coordinate of the pixel location. |
| 308 | * @param outData An object reference to an array of type defined by |
| 309 | * getTransferType() and length getNumDataElements(). |
| 310 | * If null an array of appropriate type and size will be |
| 311 | * allocated. |
| 312 | * @return An object reference to an array of type defined by |
| 313 | * getTransferType() with the request pixel data. |
| 314 | */ |
| 315 | public Object getDataElements(int x, int y, Object obj) { |
| 316 | if ((x < this.minX) || (y < this.minY) || |
| 317 | (x >= this.maxX) || (y >= this.maxY)) { |
| 318 | throw new ArrayIndexOutOfBoundsException |
| 319 | ("Coordinate out of bounds!"); |
| 320 | } |
| 321 | byte outData[]; |
| 322 | if (obj == null) { |
| 323 | outData = new byte[numDataElements]; |
| 324 | } else { |
| 325 | outData = (byte[])obj; |
| 326 | } |
| 327 | int off = (y-minY)*scanlineStride + |
| 328 | (x-minX)*pixelStride; |
| 329 | |
| 330 | for (int band = 0; band < numDataElements; band++) { |
| 331 | outData[band] = data[dataOffsets[band] + off]; |
| 332 | } |
| 333 | |
| 334 | return outData; |
| 335 | } |
| 336 | |
| 337 | /** |
| 338 | * Returns an array of data elements from the specified rectangular |
| 339 | * region. |
| 340 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 341 | * if the pixel coordinates are out of bounds. |
| 342 | * A ClassCastException will be thrown if the input object is non null |
| 343 | * and references anything other than an array of transferType. |
| 344 | * <pre> |
| 345 | * byte[] bandData = (byte[])raster.getDataElements(x, y, w, h, null); |
| 346 | * int numDataElements = raster.getNumDataElements(); |
| 347 | * byte[] pixel = new byte[numDataElements]; |
| 348 | * // To find a data element at location (x2, y2) |
| 349 | * System.arraycopy(bandData, ((y2-y)*w + (x2-x))*numDataElements, |
| 350 | * pixel, 0, numDataElements); |
| 351 | * </pre> |
| 352 | * @param x The X coordinate of the upper left pixel location. |
| 353 | * @param y The Y coordinate of the upper left pixel location. |
| 354 | * @param width Width of the pixel rectangle. |
| 355 | * @param height Height of the pixel rectangle. |
| 356 | * @param outData An object reference to an array of type defined by |
| 357 | * getTransferType() and length w*h*getNumDataElements(). |
| 358 | * If null an array of appropriate type and size will be |
| 359 | * allocated. |
| 360 | * @return An object reference to an array of type defined by |
| 361 | * getTransferType() with the request pixel data. |
| 362 | */ |
| 363 | public Object getDataElements(int x, int y, int w, int h, Object obj) { |
| 364 | return getByteData(x, y, w, h, (byte[])obj); |
| 365 | } |
| 366 | |
| 367 | /** |
| 368 | * Returns a byte array of data elements from the specified rectangular |
| 369 | * region for the specified band. |
| 370 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 371 | * if the pixel coordinates are out of bounds. |
| 372 | * <pre> |
| 373 | * byte[] bandData = raster.getByteData(x, y, w, h, null); |
| 374 | * // To find the data element at location (x2, y2) |
| 375 | * byte bandElement = bandData[((y2-y)*w + (x2-x))]; |
| 376 | * </pre> |
| 377 | * @param x The X coordinate of the upper left pixel location. |
| 378 | * @param y The Y coordinate of the upper left pixel location. |
| 379 | * @param width Width of the pixel rectangle. |
| 380 | * @param height Height of the pixel rectangle. |
| 381 | * @param band The band to return. |
| 382 | * @param outData If non-null, data elements for all bands |
| 383 | * at the specified location are returned in this array. |
| 384 | * @return Data array with data elements for all bands. |
| 385 | */ |
| 386 | public byte[] getByteData(int x, int y, int w, int h, |
| 387 | int band, byte[] outData) { |
| 388 | // Bounds check for 'band' will be performed automatically |
| 389 | if ((x < this.minX) || (y < this.minY) || |
| 390 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 391 | throw new ArrayIndexOutOfBoundsException |
| 392 | ("Coordinate out of bounds!"); |
| 393 | } |
| 394 | if (outData == null) { |
| 395 | outData = new byte[w*h]; |
| 396 | } |
| 397 | int yoff = (y-minY)*scanlineStride + |
| 398 | (x-minX)*pixelStride + dataOffsets[band]; |
| 399 | int xoff; |
| 400 | int off = 0; |
| 401 | int xstart; |
| 402 | int ystart; |
| 403 | |
| 404 | if (pixelStride == 1) { |
| 405 | if (scanlineStride == w) { |
| 406 | System.arraycopy(data, yoff, outData, 0, w*h); |
| 407 | } else { |
| 408 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 409 | System.arraycopy(data, yoff, outData, off, w); |
| 410 | off += w; |
| 411 | } |
| 412 | } |
| 413 | } else { |
| 414 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 415 | xoff = yoff; |
| 416 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 417 | outData[off++] = data[xoff]; |
| 418 | } |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | return outData; |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Returns a byte array of data elements from the specified rectangular |
| 427 | * region. |
| 428 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 429 | * if the pixel coordinates are out of bounds. |
| 430 | * <pre> |
| 431 | * byte[] bandData = raster.getByteData(x, y, w, h, null); |
| 432 | * int numDataElements = raster.getnumDataElements(); |
| 433 | * byte[] pixel = new byte[numDataElements]; |
| 434 | * // To find a data element at location (x2, y2) |
| 435 | * System.arraycopy(bandData, ((y2-y)*w + (x2-x))*numDataElements, |
| 436 | * pixel, 0, numDataElements); |
| 437 | * </pre> |
| 438 | * @param x The X coordinate of the upper left pixel location. |
| 439 | * @param y The Y coordinate of the upper left pixel location. |
| 440 | * @param width Width of the pixel rectangle. |
| 441 | * @param height Height of the pixel rectangle. |
| 442 | * @param outData If non-null, data elements for all bands |
| 443 | * at the specified location are returned in this array. |
| 444 | * @return Data array with data elements for all bands. |
| 445 | */ |
| 446 | public byte[] getByteData(int x, int y, int w, int h, byte[] outData) { |
| 447 | if ((x < this.minX) || (y < this.minY) || |
| 448 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 449 | throw new ArrayIndexOutOfBoundsException |
| 450 | ("Coordinate out of bounds!"); |
| 451 | } |
| 452 | if (outData == null) { |
| 453 | outData = new byte[numDataElements*w*h]; |
| 454 | } |
| 455 | int yoff = (y-minY)*scanlineStride + |
| 456 | (x-minX)*pixelStride; |
| 457 | int xoff; |
| 458 | int off = 0; |
| 459 | int xstart; |
| 460 | int ystart; |
| 461 | |
| 462 | if (inOrder) { |
| 463 | yoff += dataOffsets[0]; |
| 464 | int rowBytes = w*pixelStride; |
| 465 | if (scanlineStride == rowBytes) { |
| 466 | System.arraycopy(data, yoff, outData, off, rowBytes*h); |
| 467 | } else { |
| 468 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 469 | System.arraycopy(data, yoff, outData, off, rowBytes); |
| 470 | off += rowBytes; |
| 471 | } |
| 472 | } |
| 473 | } else if (numDataElements == 1) { |
| 474 | yoff += dataOffsets[0]; |
| 475 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 476 | xoff = yoff; |
| 477 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 478 | outData[off++] = data[xoff]; |
| 479 | } |
| 480 | } |
| 481 | } else if (numDataElements == 2) { |
| 482 | yoff += dataOffsets[0]; |
| 483 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 484 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 485 | xoff = yoff; |
| 486 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 487 | outData[off++] = data[xoff]; |
| 488 | outData[off++] = data[xoff + d1]; |
| 489 | } |
| 490 | } |
| 491 | } else if (numDataElements == 3) { |
| 492 | yoff += dataOffsets[0]; |
| 493 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 494 | int d2 = dataOffsets[2] - dataOffsets[0]; |
| 495 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 496 | xoff = yoff; |
| 497 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 498 | outData[off++] = data[xoff]; |
| 499 | outData[off++] = data[xoff + d1]; |
| 500 | outData[off++] = data[xoff + d2]; |
| 501 | } |
| 502 | } |
| 503 | } else if (numDataElements == 4) { |
| 504 | yoff += dataOffsets[0]; |
| 505 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 506 | int d2 = dataOffsets[2] - dataOffsets[0]; |
| 507 | int d3 = dataOffsets[3] - dataOffsets[0]; |
| 508 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 509 | xoff = yoff; |
| 510 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 511 | outData[off++] = data[xoff]; |
| 512 | outData[off++] = data[xoff + d1]; |
| 513 | outData[off++] = data[xoff + d2]; |
| 514 | outData[off++] = data[xoff + d3]; |
| 515 | } |
| 516 | } |
| 517 | } else { |
| 518 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 519 | xoff = yoff; |
| 520 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 521 | for (int c = 0; c < numDataElements; c++) { |
| 522 | outData[off++] = data[dataOffsets[c] + xoff]; |
| 523 | } |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | return outData; |
| 529 | } |
| 530 | |
| 531 | /** |
| 532 | * Stores the data elements for all bands at the specified location. |
| 533 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 534 | * if the pixel coordinate is out of bounds. |
| 535 | * A ClassCastException will be thrown if the input object is non null |
| 536 | * and references anything other than an array of transferType. |
| 537 | * @param x The X coordinate of the pixel location. |
| 538 | * @param y The Y coordinate of the pixel location. |
| 539 | * @param inData An object reference to an array of type defined by |
| 540 | * getTransferType() and length getNumDataElements() |
| 541 | * containing the pixel data to place at x,y. |
| 542 | */ |
| 543 | public void setDataElements(int x, int y, Object obj) { |
| 544 | if ((x < this.minX) || (y < this.minY) || |
| 545 | (x >= this.maxX) || (y >= this.maxY)) { |
| 546 | throw new ArrayIndexOutOfBoundsException |
| 547 | ("Coordinate out of bounds!"); |
| 548 | } |
| 549 | byte inData[] = (byte[])obj; |
| 550 | int off = (y-minY)*scanlineStride + |
| 551 | (x-minX)*pixelStride; |
| 552 | |
| 553 | for (int i = 0; i < numDataElements; i++) { |
| 554 | data[dataOffsets[i] + off] = inData[i]; |
| 555 | } |
| 556 | |
| 557 | markDirty(); |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Stores the Raster data at the specified location. |
| 562 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 563 | * if the pixel coordinates are out of bounds. |
| 564 | * @param x The X coordinate of the pixel location. |
| 565 | * @param y The Y coordinate of the pixel location. |
| 566 | * @param inRaster Raster of data to place at x,y location. |
| 567 | */ |
| 568 | public void setDataElements(int x, int y, Raster inRaster) { |
| 569 | int srcOffX = inRaster.getMinX(); |
| 570 | int srcOffY = inRaster.getMinY(); |
| 571 | int dstOffX = x + srcOffX; |
| 572 | int dstOffY = y + srcOffY; |
| 573 | int width = inRaster.getWidth(); |
| 574 | int height = inRaster.getHeight(); |
| 575 | if ((dstOffX < this.minX) || (dstOffY < this.minY) || |
| 576 | (dstOffX + width > this.maxX) || (dstOffY + height > this.maxY)) { |
| 577 | throw new ArrayIndexOutOfBoundsException |
| 578 | ("Coordinate out of bounds!"); |
| 579 | } |
| 580 | |
| 581 | setDataElements(dstOffX, dstOffY, srcOffX, srcOffY, |
| 582 | width, height, inRaster); |
| 583 | } |
| 584 | |
| 585 | /** |
| 586 | * Stores the Raster data at the specified location. |
| 587 | * @param dstX The absolute X coordinate of the destination pixel |
| 588 | * that will receive a copy of the upper-left pixel of the |
| 589 | * inRaster |
| 590 | * @param dstY The absolute Y coordinate of the destination pixel |
| 591 | * that will receive a copy of the upper-left pixel of the |
| 592 | * inRaster |
| 593 | * @param srcX The absolute X coordinate of the upper-left source |
| 594 | * pixel that will be copied into this Raster |
| 595 | * @param srcY The absolute Y coordinate of the upper-left source |
| 596 | * pixel that will be copied into this Raster |
| 597 | * @param width The number of pixels to store horizontally |
| 598 | * @param height The number of pixels to store vertically |
| 599 | * @param inRaster Raster of data to place at x,y location. |
| 600 | */ |
| 601 | private void setDataElements(int dstX, int dstY, |
| 602 | int srcX, int srcY, |
| 603 | int width, int height, |
| 604 | Raster inRaster) { |
| 605 | // Assume bounds checking has been performed previously |
| 606 | if (width <= 0 || height <= 0) { |
| 607 | return; |
| 608 | } |
| 609 | |
| 610 | // Write inRaster (minX, minY) to (dstX, dstY) |
| 611 | |
| 612 | int srcOffX = inRaster.getMinX(); |
| 613 | int srcOffY = inRaster.getMinY(); |
| 614 | Object tdata = null; |
| 615 | |
| 616 | if (inRaster instanceof ByteInterleavedRaster) { |
| 617 | ByteInterleavedRaster bct = (ByteInterleavedRaster) inRaster; |
| 618 | byte[] bdata = bct.getDataStorage(); |
| 619 | // copy whole scanlines |
| 620 | if (inOrder && bct.inOrder && pixelStride == bct.pixelStride) { |
| 621 | int toff = bct.getDataOffset(0); |
| 622 | int tss = bct.getScanlineStride(); |
| 623 | int tps = bct.getPixelStride(); |
| 624 | |
| 625 | int srcOffset = toff + |
| 626 | (srcY - srcOffY) * tss + |
| 627 | (srcX - srcOffX) * tps; |
| 628 | int dstOffset = dataOffsets[0] + |
| 629 | (dstY - minY) * scanlineStride + |
| 630 | (dstX - minX) * pixelStride; |
| 631 | |
| 632 | int nbytes = width*pixelStride; |
| 633 | for (int tmpY=0; tmpY < height; tmpY++) { |
| 634 | System.arraycopy(bdata, srcOffset, |
| 635 | data, dstOffset, nbytes); |
| 636 | srcOffset += tss; |
| 637 | dstOffset += scanlineStride; |
| 638 | } |
| 639 | markDirty(); |
| 640 | return; |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | for (int startY=0; startY < height; startY++) { |
| 645 | // Grab one scanline at a time |
| 646 | tdata = inRaster.getDataElements(srcOffX, srcOffY+startY, |
| 647 | width, 1, tdata); |
| 648 | setDataElements(dstX, dstY + startY, width, 1, tdata); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * Stores an array of data elements into the specified rectangular |
| 654 | * region. |
| 655 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 656 | * if the pixel coordinates are out of bounds. |
| 657 | * A ClassCastException will be thrown if the input object is non null |
| 658 | * and references anything other than an array of transferType. |
| 659 | * The data elements in the |
| 660 | * data array are assumed to be packed. That is, a data element |
| 661 | * for the nth band at location (x2, y2) would be found at: |
| 662 | * <pre> |
| 663 | * inData[((y2-y)*w + (x2-x))*numDataElements + n] |
| 664 | * </pre> |
| 665 | * @param x The X coordinate of the upper left pixel location. |
| 666 | * @param y The Y coordinate of the upper left pixel location. |
| 667 | * @param w Width of the pixel rectangle. |
| 668 | * @param h Height of the pixel rectangle. |
| 669 | * @param inData An object reference to an array of type defined by |
| 670 | * getTransferType() and length w*h*getNumDataElements() |
| 671 | * containing the pixel data to place between x,y and |
| 672 | * x+h, y+h. |
| 673 | */ |
| 674 | public void setDataElements(int x, int y, int w, int h, Object obj) { |
| 675 | putByteData(x, y, w, h, (byte[])obj); |
| 676 | } |
| 677 | |
| 678 | /** |
| 679 | * Stores a byte array of data elements into the specified rectangular |
| 680 | * region for the specified band. |
| 681 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 682 | * if the pixel coordinates are out of bounds. |
| 683 | * The data elements in the |
| 684 | * data array are assumed to be packed. That is, a data element |
| 685 | * at location (x2, y2) would be found at: |
| 686 | * <pre> |
| 687 | * inData[((y2-y)*w + (x2-x)) + n] |
| 688 | * </pre> |
| 689 | * @param x The X coordinate of the upper left pixel location. |
| 690 | * @param y The Y coordinate of the upper left pixel location. |
| 691 | * @param w Width of the pixel rectangle. |
| 692 | * @param h Height of the pixel rectangle. |
| 693 | * @param band The band to set. |
| 694 | * @param inData The data elements to be stored. |
| 695 | */ |
| 696 | public void putByteData(int x, int y, int w, int h, |
| 697 | int band, byte[] inData) { |
| 698 | // Bounds check for 'band' will be performed automatically |
| 699 | if ((x < this.minX) || (y < this.minY) || |
| 700 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 701 | throw new ArrayIndexOutOfBoundsException |
| 702 | ("Coordinate out of bounds!"); |
| 703 | } |
| 704 | int yoff = (y-minY)*scanlineStride + |
| 705 | (x-minX)*pixelStride + dataOffsets[band]; |
| 706 | int xoff; |
| 707 | int off = 0; |
| 708 | int xstart; |
| 709 | int ystart; |
| 710 | |
| 711 | if (pixelStride == 1) { |
| 712 | if (scanlineStride == w) { |
| 713 | System.arraycopy(inData, 0, data, yoff, w*h); |
| 714 | } |
| 715 | else { |
| 716 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 717 | System.arraycopy(inData, off, data, yoff, w); |
| 718 | off += w; |
| 719 | } |
| 720 | } |
| 721 | } |
| 722 | else { |
| 723 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 724 | xoff = yoff; |
| 725 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 726 | data[xoff] = inData[off++]; |
| 727 | } |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | markDirty(); |
| 732 | } |
| 733 | |
| 734 | /** |
| 735 | * Stores a byte array of data elements into the specified rectangular |
| 736 | * region. |
| 737 | * An ArrayIndexOutOfBounds exception will be thrown at runtime |
| 738 | * if the pixel coordinates are out of bounds. |
| 739 | * The data elements in the |
| 740 | * data array are assumed to be packed. That is, a data element |
| 741 | * for the nth band at location (x2, y2) would be found at: |
| 742 | * <pre> |
| 743 | * inData[((y2-y)*w + (x2-x))*numDataElements + n] |
| 744 | * </pre> |
| 745 | * @param x The X coordinate of the upper left pixel location. |
| 746 | * @param y The Y coordinate of the upper left pixel location. |
| 747 | * @param w Width of the pixel rectangle. |
| 748 | * @param h Height of the pixel rectangle. |
| 749 | * @param inData The data elements to be stored. |
| 750 | */ |
| 751 | public void putByteData(int x, int y, int w, int h, byte[] inData) { |
| 752 | if ((x < this.minX) || (y < this.minY) || |
| 753 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 754 | throw new ArrayIndexOutOfBoundsException |
| 755 | ("Coordinate out of bounds!"); |
| 756 | } |
| 757 | int yoff = (y-minY)*scanlineStride + |
| 758 | (x-minX)*pixelStride; |
| 759 | |
| 760 | int xoff; |
| 761 | int off = 0; |
| 762 | int xstart; |
| 763 | int ystart; |
| 764 | |
| 765 | if (inOrder) { |
| 766 | yoff += dataOffsets[0]; |
| 767 | int rowBytes = w*pixelStride; |
| 768 | if (rowBytes == scanlineStride) { |
| 769 | System.arraycopy(inData, 0, data, yoff, rowBytes*h); |
| 770 | } else { |
| 771 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 772 | System.arraycopy(inData, off, data, yoff, rowBytes); |
| 773 | off += rowBytes; |
| 774 | } |
| 775 | } |
| 776 | } else if (numDataElements == 1) { |
| 777 | yoff += dataOffsets[0]; |
| 778 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 779 | xoff = yoff; |
| 780 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 781 | data[xoff] = inData[off++]; |
| 782 | } |
| 783 | } |
| 784 | } else if (numDataElements == 2) { |
| 785 | yoff += dataOffsets[0]; |
| 786 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 787 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 788 | xoff = yoff; |
| 789 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 790 | data[xoff] = inData[off++]; |
| 791 | data[xoff + d1] = inData[off++]; |
| 792 | } |
| 793 | } |
| 794 | } else if (numDataElements == 3) { |
| 795 | yoff += dataOffsets[0]; |
| 796 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 797 | int d2 = dataOffsets[2] - dataOffsets[0]; |
| 798 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 799 | xoff = yoff; |
| 800 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 801 | data[xoff] = inData[off++]; |
| 802 | data[xoff + d1] = inData[off++]; |
| 803 | data[xoff + d2] = inData[off++]; |
| 804 | } |
| 805 | } |
| 806 | } else if (numDataElements == 4) { |
| 807 | yoff += dataOffsets[0]; |
| 808 | int d1 = dataOffsets[1] - dataOffsets[0]; |
| 809 | int d2 = dataOffsets[2] - dataOffsets[0]; |
| 810 | int d3 = dataOffsets[3] - dataOffsets[0]; |
| 811 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 812 | xoff = yoff; |
| 813 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 814 | data[xoff] = inData[off++]; |
| 815 | data[xoff + d1] = inData[off++]; |
| 816 | data[xoff + d2] = inData[off++]; |
| 817 | data[xoff + d3] = inData[off++]; |
| 818 | } |
| 819 | } |
| 820 | } else { |
| 821 | for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) { |
| 822 | xoff = yoff; |
| 823 | for (xstart=0; xstart < w; xstart++, xoff += pixelStride) { |
| 824 | for (int c = 0; c < numDataElements; c++) { |
| 825 | data[dataOffsets[c] + xoff] = inData[off++]; |
| 826 | } |
| 827 | } |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | markDirty(); |
| 832 | } |
| 833 | |
| 834 | public int getSample(int x, int y, int b) { |
| 835 | if ((x < this.minX) || (y < this.minY) || |
| 836 | (x >= this.maxX) || (y >= this.maxY)) { |
| 837 | throw new ArrayIndexOutOfBoundsException |
| 838 | ("Coordinate out of bounds!"); |
| 839 | } |
| 840 | if (packed) { |
| 841 | int offset = y*scanlineStride + x + dbOffsetPacked; |
| 842 | byte sample = data[offset]; |
| 843 | return (sample & bitMasks[b]) >>> bitOffsets[b]; |
| 844 | } else { |
| 845 | int offset = y*scanlineStride + x*pixelStride + dbOffset; |
| 846 | return data[offset + dataOffsets[b]] & 0xff; |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | public void setSample(int x, int y, int b, int s) { |
| 851 | if ((x < this.minX) || (y < this.minY) || |
| 852 | (x >= this.maxX) || (y >= this.maxY)) { |
| 853 | throw new ArrayIndexOutOfBoundsException |
| 854 | ("Coordinate out of bounds!"); |
| 855 | } |
| 856 | if (packed) { |
| 857 | int offset = y*scanlineStride + x + dbOffsetPacked; |
| 858 | int bitMask = bitMasks[b]; |
| 859 | |
| 860 | byte value = data[offset]; |
| 861 | value &= ~bitMask; |
| 862 | value |= (s << bitOffsets[b]) & bitMask; |
| 863 | data[offset] = value; |
| 864 | } else { |
| 865 | int offset = y*scanlineStride + x*pixelStride + dbOffset; |
| 866 | data[offset + dataOffsets[b]] = (byte)s; |
| 867 | } |
| 868 | |
| 869 | markDirty(); |
| 870 | } |
| 871 | |
| 872 | public int[] getSamples(int x, int y, int w, int h, int b, |
| 873 | int[] iArray) { |
| 874 | if ((x < this.minX) || (y < this.minY) || |
| 875 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 876 | throw new ArrayIndexOutOfBoundsException |
| 877 | ("Coordinate out of bounds!"); |
| 878 | } |
| 879 | int samples[]; |
| 880 | if (iArray != null) { |
| 881 | samples = iArray; |
| 882 | } else { |
| 883 | samples = new int [w*h]; |
| 884 | } |
| 885 | |
| 886 | int lineOffset = y*scanlineStride + x*pixelStride; |
| 887 | int dstOffset = 0; |
| 888 | |
| 889 | if (packed) { |
| 890 | lineOffset += dbOffsetPacked; |
| 891 | int bitMask = bitMasks[b]; |
| 892 | int bitOffset = bitOffsets[b]; |
| 893 | |
| 894 | for (int j = 0; j < h; j++) { |
| 895 | int sampleOffset = lineOffset; |
| 896 | for (int i = 0; i < w; i++) { |
| 897 | int value = data[sampleOffset++]; |
| 898 | samples[dstOffset++] = ((value & bitMask) >>> bitOffset); |
| 899 | } |
| 900 | lineOffset += scanlineStride; |
| 901 | } |
| 902 | } else { |
| 903 | lineOffset += dbOffset + dataOffsets[b]; |
| 904 | for (int j = 0; j < h; j++) { |
| 905 | int sampleOffset = lineOffset; |
| 906 | for (int i = 0; i < w; i++) { |
| 907 | samples[dstOffset++] = data[sampleOffset] & 0xff; |
| 908 | sampleOffset += pixelStride; |
| 909 | } |
| 910 | lineOffset += scanlineStride; |
| 911 | } |
| 912 | } |
| 913 | |
| 914 | return samples; |
| 915 | } |
| 916 | |
| 917 | public void setSamples(int x, int y, int w, int h, int b, int iArray[]) { |
| 918 | if ((x < this.minX) || (y < this.minY) || |
| 919 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 920 | throw new ArrayIndexOutOfBoundsException |
| 921 | ("Coordinate out of bounds!"); |
| 922 | } |
| 923 | int lineOffset = y*scanlineStride + x*pixelStride; |
| 924 | int srcOffset = 0; |
| 925 | |
| 926 | if (packed) { |
| 927 | lineOffset += dbOffsetPacked; |
| 928 | int bitMask = bitMasks[b]; |
| 929 | |
| 930 | for (int j = 0; j < h; j++) { |
| 931 | int sampleOffset = lineOffset; |
| 932 | for (int i = 0; i < w; i++) { |
| 933 | byte value = data[sampleOffset]; |
| 934 | value &= ~bitMask; |
| 935 | int sample = iArray[srcOffset++]; |
| 936 | value |= (sample << bitOffsets[b]) & bitMask; |
| 937 | data[sampleOffset++] = value; |
| 938 | } |
| 939 | lineOffset += scanlineStride; |
| 940 | } |
| 941 | } else { |
| 942 | lineOffset += dbOffset + dataOffsets[b]; |
| 943 | for (int i = 0; i < h; i++) { |
| 944 | int sampleOffset = lineOffset; |
| 945 | for (int j = 0; j < w; j++) { |
| 946 | data[sampleOffset] = (byte)iArray[srcOffset++]; |
| 947 | sampleOffset += pixelStride; |
| 948 | } |
| 949 | lineOffset += scanlineStride; |
| 950 | } |
| 951 | } |
| 952 | |
| 953 | markDirty(); |
| 954 | } |
| 955 | |
| 956 | public int[] getPixels(int x, int y, int w, int h, int[] iArray) { |
| 957 | if ((x < this.minX) || (y < this.minY) || |
| 958 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 959 | throw new ArrayIndexOutOfBoundsException |
| 960 | ("Coordinate out of bounds!"); |
| 961 | } |
| 962 | int pixels[]; |
| 963 | if (iArray != null) { |
| 964 | pixels = iArray; |
| 965 | } else { |
| 966 | pixels = new int[w*h*numBands]; |
| 967 | } |
| 968 | |
| 969 | int lineOffset = y*scanlineStride + x*pixelStride; |
| 970 | int dstOffset = 0; |
| 971 | |
| 972 | if (packed) { |
| 973 | lineOffset += dbOffsetPacked; |
| 974 | for (int j = 0; j < h; j++) { |
| 975 | for (int i = 0; i < w; i++) { |
| 976 | int value = data[lineOffset + i]; |
| 977 | for (int k = 0; k < numBands; k++) { |
| 978 | pixels[dstOffset++] = |
| 979 | (value & bitMasks[k]) >>> bitOffsets[k]; |
| 980 | } |
| 981 | } |
| 982 | lineOffset += scanlineStride; |
| 983 | } |
| 984 | } else { |
| 985 | lineOffset += dbOffset; |
| 986 | int d0 = dataOffsets[0]; |
| 987 | |
| 988 | if (numBands == 1) { |
| 989 | for (int j = 0; j < h; j++) { |
| 990 | int pixelOffset = lineOffset + d0; |
| 991 | for (int i = 0; i < w; i++) { |
| 992 | pixels[dstOffset++] = data[pixelOffset] & 0xff; |
| 993 | pixelOffset += pixelStride; |
| 994 | } |
| 995 | lineOffset += scanlineStride; |
| 996 | } |
| 997 | } else if (numBands == 2) { |
| 998 | int d1 = dataOffsets[1] - d0; |
| 999 | for (int j = 0; j < h; j++) { |
| 1000 | int pixelOffset = lineOffset + d0; |
| 1001 | for (int i = 0; i < w; i++) { |
| 1002 | pixels[dstOffset++] = data[pixelOffset] & 0xff; |
| 1003 | pixels[dstOffset++] = data[pixelOffset + d1] & 0xff; |
| 1004 | pixelOffset += pixelStride; |
| 1005 | } |
| 1006 | lineOffset += scanlineStride; |
| 1007 | } |
| 1008 | } else if (numBands == 3) { |
| 1009 | int d1 = dataOffsets[1] - d0; |
| 1010 | int d2 = dataOffsets[2] - d0; |
| 1011 | for (int j = 0; j < h; j++) { |
| 1012 | int pixelOffset = lineOffset + d0; |
| 1013 | for (int i = 0; i < w; i++) { |
| 1014 | pixels[dstOffset++] = data[pixelOffset] & 0xff; |
| 1015 | pixels[dstOffset++] = data[pixelOffset + d1] & 0xff; |
| 1016 | pixels[dstOffset++] = data[pixelOffset + d2] & 0xff; |
| 1017 | pixelOffset += pixelStride; |
| 1018 | } |
| 1019 | lineOffset += scanlineStride; |
| 1020 | } |
| 1021 | } else if (numBands == 4) { |
| 1022 | int d1 = dataOffsets[1] - d0; |
| 1023 | int d2 = dataOffsets[2] - d0; |
| 1024 | int d3 = dataOffsets[3] - d0; |
| 1025 | for (int j = 0; j < h; j++) { |
| 1026 | int pixelOffset = lineOffset + d0; |
| 1027 | for (int i = 0; i < w; i++) { |
| 1028 | pixels[dstOffset++] = data[pixelOffset] & 0xff; |
| 1029 | pixels[dstOffset++] = data[pixelOffset + d1] & 0xff; |
| 1030 | pixels[dstOffset++] = data[pixelOffset + d2] & 0xff; |
| 1031 | pixels[dstOffset++] = data[pixelOffset + d3] & 0xff; |
| 1032 | pixelOffset += pixelStride; |
| 1033 | } |
| 1034 | lineOffset += scanlineStride; |
| 1035 | } |
| 1036 | } else { |
| 1037 | for (int j = 0; j < h; j++) { |
| 1038 | int pixelOffset = lineOffset; |
| 1039 | for (int i = 0; i < w; i++) { |
| 1040 | for (int k = 0; k < numBands; k++) { |
| 1041 | pixels[dstOffset++] = |
| 1042 | data[pixelOffset + dataOffsets[k]] & 0xff; |
| 1043 | } |
| 1044 | pixelOffset += pixelStride; |
| 1045 | } |
| 1046 | lineOffset += scanlineStride; |
| 1047 | } |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | return pixels; |
| 1052 | } |
| 1053 | |
| 1054 | public void setPixels(int x, int y, int w, int h, int[] iArray) { |
| 1055 | if ((x < this.minX) || (y < this.minY) || |
| 1056 | (x + w > this.maxX) || (y + h > this.maxY)) { |
| 1057 | throw new ArrayIndexOutOfBoundsException |
| 1058 | ("Coordinate out of bounds!"); |
| 1059 | } |
| 1060 | int lineOffset = y*scanlineStride + x*pixelStride; |
| 1061 | int srcOffset = 0; |
| 1062 | |
| 1063 | if (packed) { |
| 1064 | lineOffset += dbOffsetPacked; |
| 1065 | for (int j = 0; j < h; j++) { |
| 1066 | for (int i = 0; i < w; i++) { |
| 1067 | int value = 0; |
| 1068 | for (int k = 0; k < numBands; k++) { |
| 1069 | int srcValue = iArray[srcOffset++]; |
| 1070 | value |= ((srcValue << bitOffsets[k]) |
| 1071 | & bitMasks[k]); |
| 1072 | } |
| 1073 | data[lineOffset + i] = (byte)value; |
| 1074 | } |
| 1075 | lineOffset += scanlineStride; |
| 1076 | } |
| 1077 | } else { |
| 1078 | lineOffset += dbOffset; |
| 1079 | int d0 = dataOffsets[0]; |
| 1080 | |
| 1081 | if (numBands == 1) { |
| 1082 | for (int j = 0; j < h; j++) { |
| 1083 | int pixelOffset = lineOffset + d0; |
| 1084 | for (int i = 0; i < w; i++) { |
| 1085 | data[pixelOffset] = (byte)iArray[srcOffset++]; |
| 1086 | pixelOffset += pixelStride; |
| 1087 | } |
| 1088 | lineOffset += scanlineStride; |
| 1089 | } |
| 1090 | } else if (numBands == 2) { |
| 1091 | int d1 = dataOffsets[1] - d0; |
| 1092 | for (int j = 0; j < h; j++) { |
| 1093 | int pixelOffset = lineOffset + d0; |
| 1094 | for (int i = 0; i < w; i++) { |
| 1095 | data[pixelOffset] = (byte)iArray[srcOffset++]; |
| 1096 | data[pixelOffset + d1] = (byte)iArray[srcOffset++]; |
| 1097 | pixelOffset += pixelStride; |
| 1098 | } |
| 1099 | lineOffset += scanlineStride; |
| 1100 | } |
| 1101 | } else if (numBands == 3) { |
| 1102 | int d1 = dataOffsets[1] - d0; |
| 1103 | int d2 = dataOffsets[2] - d0; |
| 1104 | for (int j = 0; j < h; j++) { |
| 1105 | int pixelOffset = lineOffset + d0; |
| 1106 | for (int i = 0; i < w; i++) { |
| 1107 | data[pixelOffset] = (byte)iArray[srcOffset++]; |
| 1108 | data[pixelOffset + d1] = (byte)iArray[srcOffset++]; |
| 1109 | data[pixelOffset + d2] = (byte)iArray[srcOffset++]; |
| 1110 | pixelOffset += pixelStride; |
| 1111 | } |
| 1112 | lineOffset += scanlineStride; |
| 1113 | } |
| 1114 | } else if (numBands == 4) { |
| 1115 | int d1 = dataOffsets[1] - d0; |
| 1116 | int d2 = dataOffsets[2] - d0; |
| 1117 | int d3 = dataOffsets[3] - d0; |
| 1118 | for (int j = 0; j < h; j++) { |
| 1119 | int pixelOffset = lineOffset + d0; |
| 1120 | for (int i = 0; i < w; i++) { |
| 1121 | data[pixelOffset] = (byte)iArray[srcOffset++]; |
| 1122 | data[pixelOffset + d1] = (byte)iArray[srcOffset++]; |
| 1123 | data[pixelOffset + d2] = (byte)iArray[srcOffset++]; |
| 1124 | data[pixelOffset + d3] = (byte)iArray[srcOffset++]; |
| 1125 | pixelOffset += pixelStride; |
| 1126 | } |
| 1127 | lineOffset += scanlineStride; |
| 1128 | } |
| 1129 | } else { |
| 1130 | for (int j = 0; j < h; j++) { |
| 1131 | int pixelOffset = lineOffset; |
| 1132 | for (int i = 0; i < w; i++) { |
| 1133 | for (int k = 0; k < numBands; k++) { |
| 1134 | data[pixelOffset + dataOffsets[k]] = |
| 1135 | (byte)iArray[srcOffset++]; |
| 1136 | } |
| 1137 | pixelOffset += pixelStride; |
| 1138 | } |
| 1139 | lineOffset += scanlineStride; |
| 1140 | } |
| 1141 | } |
| 1142 | } |
| 1143 | |
| 1144 | markDirty(); |
| 1145 | } |
| 1146 | |
| 1147 | public void setRect(int dx, int dy, Raster srcRaster) { |
| 1148 | if (!(srcRaster instanceof ByteInterleavedRaster)) { |
| 1149 | super.setRect(dx, dy, srcRaster); |
| 1150 | return; |
| 1151 | } |
| 1152 | |
| 1153 | int width = srcRaster.getWidth(); |
| 1154 | int height = srcRaster.getHeight(); |
| 1155 | int srcOffX = srcRaster.getMinX(); |
| 1156 | int srcOffY = srcRaster.getMinY(); |
| 1157 | int dstOffX = dx+srcOffX; |
| 1158 | int dstOffY = dy+srcOffY; |
| 1159 | |
| 1160 | // Clip to this raster |
| 1161 | if (dstOffX < this.minX) { |
| 1162 | int skipX = minX - dstOffX; |
| 1163 | width -= skipX; |
| 1164 | srcOffX += skipX; |
| 1165 | dstOffX = this.minX; |
| 1166 | } |
| 1167 | if (dstOffY < this.minY) { |
| 1168 | int skipY = this.minY - dstOffY; |
| 1169 | height -= skipY; |
| 1170 | srcOffY += skipY; |
| 1171 | dstOffY = this.minY; |
| 1172 | } |
| 1173 | if (dstOffX+width > this.maxX) { |
| 1174 | width = this.maxX - dstOffX; |
| 1175 | } |
| 1176 | if (dstOffY+height > this.maxY) { |
| 1177 | height = this.maxY - dstOffY; |
| 1178 | } |
| 1179 | |
| 1180 | setDataElements(dstOffX, dstOffY, |
| 1181 | srcOffX, srcOffY, |
| 1182 | width, height, srcRaster); |
| 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | /** |
| 1187 | * Creates a subraster given a region of the raster. The x and y |
| 1188 | * coordinates specify the horizontal and vertical offsets |
| 1189 | * from the upper-left corner of this raster to the upper-left corner |
| 1190 | * of the subraster. A subset of the bands of the parent Raster may |
| 1191 | * be specified. If this is null, then all the bands are present in the |
| 1192 | * subRaster. A translation to the subRaster may also be specified. |
| 1193 | * Note that the subraster will reference the same |
| 1194 | * DataBuffer as the parent raster, but using different offsets. |
| 1195 | * @param x X offset. |
| 1196 | * @param y Y offset. |
| 1197 | * @param width Width (in pixels) of the subraster. |
| 1198 | * @param height Height (in pixels) of the subraster. |
| 1199 | * @param x0 Translated X origin of the subraster. |
| 1200 | * @param y0 Translated Y origin of the subraster. |
| 1201 | * @param bandList Array of band indices. |
| 1202 | * @exception RasterFormatException |
| 1203 | * if the specified bounding box is outside of the parent raster. |
| 1204 | */ |
| 1205 | public Raster createChild(int x, int y, |
| 1206 | int width, int height, |
| 1207 | int x0, int y0, int[] bandList) { |
| 1208 | WritableRaster newRaster = createWritableChild(x, y, |
| 1209 | width, height, |
| 1210 | x0, y0, |
| 1211 | bandList); |
| 1212 | return (Raster) newRaster; |
| 1213 | } |
| 1214 | |
| 1215 | /** |
| 1216 | * Creates a Writable subRaster given a region of the Raster. The x and y |
| 1217 | * coordinates specify the horizontal and vertical offsets |
| 1218 | * from the upper-left corner of this Raster to the upper-left corner |
| 1219 | * of the subRaster. A subset of the bands of the parent Raster may |
| 1220 | * be specified. If this is null, then all the bands are present in the |
| 1221 | * subRaster. A translation to the subRaster may also be specified. |
| 1222 | * Note that the subRaster will reference the same |
| 1223 | * DataBuffer as the parent Raster, but using different offsets. |
| 1224 | * @param x X offset. |
| 1225 | * @param y Y offset. |
| 1226 | * @param width Width (in pixels) of the subraster. |
| 1227 | * @param height Height (in pixels) of the subraster. |
| 1228 | * @param x0 Translated X origin of the subraster. |
| 1229 | * @param y0 Translated Y origin of the subraster. |
| 1230 | * @param bandList Array of band indices. |
| 1231 | * @exception RasterFormatException |
| 1232 | * if the specified bounding box is outside of the parent Raster. |
| 1233 | */ |
| 1234 | public WritableRaster createWritableChild(int x, int y, |
| 1235 | int width, int height, |
| 1236 | int x0, int y0, |
| 1237 | int[] bandList) { |
| 1238 | if (x < this.minX) { |
| 1239 | throw new RasterFormatException("x lies outside the raster"); |
| 1240 | } |
| 1241 | if (y < this.minY) { |
| 1242 | throw new RasterFormatException("y lies outside the raster"); |
| 1243 | } |
| 1244 | if ((x+width < x) || (x+width > this.minX + this.width)) { |
| 1245 | throw new RasterFormatException("(x + width) is outside of Raster"); |
| 1246 | } |
| 1247 | if ((y+height < y) || (y+height > this.minY + this.height)) { |
| 1248 | throw new RasterFormatException("(y + height) is outside of Raster"); |
| 1249 | } |
| 1250 | |
| 1251 | SampleModel sm; |
| 1252 | |
| 1253 | if (bandList != null) |
| 1254 | sm = sampleModel.createSubsetSampleModel(bandList); |
| 1255 | else |
| 1256 | sm = sampleModel; |
| 1257 | |
| 1258 | int deltaX = x0 - x; |
| 1259 | int deltaY = y0 - y; |
| 1260 | |
| 1261 | return new ByteInterleavedRaster(sm, |
| 1262 | dataBuffer, |
| 1263 | new Rectangle(x0, y0, width, height), |
| 1264 | new Point(sampleModelTranslateX+deltaX, |
| 1265 | sampleModelTranslateY+deltaY), |
| 1266 | this); |
| 1267 | } |
| 1268 | |
| 1269 | /** |
| 1270 | * Creates a Raster with the same layout but using a different |
| 1271 | * width and height, and with new zeroed data arrays. |
| 1272 | */ |
| 1273 | public WritableRaster createCompatibleWritableRaster(int w, int h) { |
| 1274 | if (w <= 0 || h <=0) { |
| 1275 | throw new RasterFormatException("negative "+ |
| 1276 | ((w <= 0) ? "width" : "height")); |
| 1277 | } |
| 1278 | |
| 1279 | SampleModel sm = sampleModel.createCompatibleSampleModel(w, h); |
| 1280 | |
| 1281 | return new ByteInterleavedRaster(sm, new Point(0,0)); |
| 1282 | |
| 1283 | } |
| 1284 | |
| 1285 | /** |
| 1286 | * Creates a Raster with the same layout and the same |
| 1287 | * width and height, and with new zeroed data arrays. If |
| 1288 | * the Raster is a subRaster, this will call |
| 1289 | * createCompatibleRaster(width, height). |
| 1290 | */ |
| 1291 | public WritableRaster createCompatibleWritableRaster() { |
| 1292 | return createCompatibleWritableRaster(width,height); |
| 1293 | } |
| 1294 | |
| 1295 | /** |
| 1296 | * Verify that the layout parameters are consistent with |
| 1297 | * the data. If strictCheck |
| 1298 | * is false, this method will check for ArrayIndexOutOfBounds conditions. If |
| 1299 | * strictCheck is true, this method will check for additional error |
| 1300 | * conditions such as line wraparound (width of a line greater than |
| 1301 | * the scanline stride). |
| 1302 | * @return String Error string, if the layout is incompatible with |
| 1303 | * the data. Otherwise returns null. |
| 1304 | */ |
| 1305 | private void verify (boolean strictCheck) { |
| 1306 | int maxSize = 0; |
| 1307 | int size; |
| 1308 | |
| 1309 | for (int i=0; i < numDataElements; i++) { |
| 1310 | size = (height-1)*scanlineStride + (width-1)*pixelStride + |
| 1311 | dataOffsets[i]; |
| 1312 | if (size > maxSize) { |
| 1313 | maxSize = size; |
| 1314 | } |
| 1315 | } |
| 1316 | if (data.length < maxSize) { |
| 1317 | throw new RasterFormatException("Data array too small (should be "+ |
| 1318 | maxSize+" )"); |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | public String toString() { |
| 1323 | return new String ("ByteInterleavedRaster: width = "+width+" height = " |
| 1324 | + height |
| 1325 | +" #numDataElements "+numDataElements |
| 1326 | // +" xOff = "+xOffset+" yOff = "+yOffset |
| 1327 | +" dataOff[0] = "+dataOffsets[0]); |
| 1328 | } |
| 1329 | |
| 1330 | // /** |
| 1331 | // * For debugging... prints a region of a one-band ByteInterleavedRaster |
| 1332 | // */ |
| 1333 | // public void print(int x, int y, int w, int h) { |
| 1334 | // // REMIND: Only works for 1 band! |
| 1335 | // System.out.println(this); |
| 1336 | // int offset = dataOffsets[0] + y*scanlineStride + x*pixelStride; |
| 1337 | // int off; |
| 1338 | // for (int yoff=0; yoff < h; yoff++, offset += scanlineStride) { |
| 1339 | // off = offset; |
| 1340 | // System.out.print("Line "+(y+yoff)+": "); |
| 1341 | // for (int xoff = 0; xoff < w; xoff++, off+= pixelStride) { |
| 1342 | // String s = Integer.toHexString(data[off]); |
| 1343 | // if (s.length() == 8) { |
| 1344 | // s = s.substring(6,8); |
| 1345 | // } |
| 1346 | // System.out.print(s+" "); |
| 1347 | // } |
| 1348 | // System.out.println(""); |
| 1349 | // } |
| 1350 | // } |
| 1351 | } |