1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 /** 18 * @author Igor V. Stolyarov 19 * @version $Revision$ 20 */ 21 22 package java.awt.image; 23 24 import java.awt.Point; 25 import java.awt.Rectangle; 26 27 import org.apache.harmony.awt.gl.image.OrdinaryWritableRaster; 28 import org.apache.harmony.awt.internal.nls.Messages; 29 30 /** 31 * The Raster class represents a rectangular area of pixels. This class is 32 * defined by DataBuffer and SampleModel objects. The DataBuffer object stores 33 * sample values and DSampleModel defines the location of sample in this 34 * DataBuffer. 35 * 36 * @since Android 1.0 37 */ 38 public class Raster { 39 40 /** 41 * The DataBuffer of this Raster. 42 */ 43 protected DataBuffer dataBuffer; 44 45 /** 46 * The height of this Raster. 47 */ 48 protected int height; 49 50 /** 51 * The X coordinate of the upper left pixel in this Raster. 52 */ 53 protected int minX; 54 55 /** 56 * The Y coordinate of the upper left pixel in this Raster. 57 */ 58 protected int minY; 59 60 /** 61 * The number of bands in this Raster. 62 */ 63 protected int numBands; 64 65 /** 66 * The number of data elements. 67 */ 68 protected int numDataElements; 69 70 /** 71 * The parent of this Raster. 72 */ 73 protected Raster parent; 74 75 /** 76 * The SampleModel of this Raster. 77 */ 78 protected SampleModel sampleModel; 79 80 /** 81 * The X translation from the coordinate space of the SampleModel of this 82 * Raster. 83 */ 84 protected int sampleModelTranslateX; 85 86 /** 87 * The Y translation from the coordinate space of the SampleModel of this 88 * Raster. 89 */ 90 protected int sampleModelTranslateY; 91 92 /** 93 * The width of this Raster. 94 */ 95 protected int width; 96 97 /** 98 * Creates a Raster object with a BandedSampleModel and the specified 99 * DataBuffer. The number of bands is defined by the length of bandOffsets 100 * or bankIndices arrays. 101 * 102 * @param dataBuffer 103 * the specified DataBuffer. 104 * @param w 105 * the width of the image data. 106 * @param h 107 * the height of the image data. 108 * @param scanlineStride 109 * the scanline stride of the image data. 110 * @param bankIndices 111 * the bank indices of bands. 112 * @param bandOffsets 113 * the band offsets of bands. 114 * @param location 115 * the location which defines the upper left corner of Raster. 116 * @return the WritableRaster object. 117 */ createBandedRaster(DataBuffer dataBuffer, int w, int h, int scanlineStride, int bankIndices[], int bandOffsets[], Point location)118 public static WritableRaster createBandedRaster(DataBuffer dataBuffer, int w, int h, 119 int scanlineStride, int bankIndices[], int bandOffsets[], Point location) { 120 121 if (w <= 0 || h <= 0) { 122 // awt.22E=w or h is less than or equal to zero 123 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 124 } 125 126 if (location == null) { 127 location = new Point(0, 0); 128 } 129 130 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 131 // awt.276=location.x + w or location.y + h results in integer 132 // overflow 133 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 134 } 135 136 if (bankIndices == null || bandOffsets == null) { 137 // awt.277=bankIndices or bandOffsets is null 138 throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.277")); //$NON-NLS-1$ 139 } 140 141 if (dataBuffer == null) { 142 // awt.278=dataBuffer is null 143 throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$ 144 } 145 146 int dataType = dataBuffer.getDataType(); 147 148 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 149 && dataType != DataBuffer.TYPE_INT) { 150 // awt.230=dataType is not one of the supported data types 151 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 152 } 153 154 BandedSampleModel sampleModel = new BandedSampleModel(dataType, w, h, scanlineStride, 155 bankIndices, bandOffsets); 156 157 return new OrdinaryWritableRaster(sampleModel, dataBuffer, location); 158 } 159 160 /** 161 * Creates a Raster object with a BandedSampleModel and the specified data 162 * type. The Data type can be one of the following values: TYPE_BYTE, 163 * TYPE_USHORT, or TYPE_INT. 164 * 165 * @param dataType 166 * the data type of the samples: TYPE_BYTE, TYPE_USHORT, or 167 * TYPE_INT. 168 * @param w 169 * the width of the image data. 170 * @param h 171 * the height of the image data. 172 * @param scanlineStride 173 * the scanline stride of the image data. 174 * @param bankIndices 175 * the bank indices of bands. 176 * @param bandOffsets 177 * the band offsets of bands. 178 * @param location 179 * the location which defines the upper left corner of the 180 * Raster. 181 * @return the WritableRaster object. 182 */ createBandedRaster(int dataType, int w, int h, int scanlineStride, int bankIndices[], int bandOffsets[], Point location)183 public static WritableRaster createBandedRaster(int dataType, int w, int h, int scanlineStride, 184 int bankIndices[], int bandOffsets[], Point location) { 185 186 if (w <= 0 || h <= 0) { 187 // awt.22E=w or h is less than or equal to zero 188 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 189 } 190 191 if (location == null) { 192 location = new Point(0, 0); 193 } 194 195 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 196 // awt.276=location.x + w or location.y + h results in integer 197 // overflow 198 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 199 } 200 201 if (bankIndices == null || bandOffsets == null) { 202 // awt.277=bankIndices or bandOffsets is null 203 throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.277")); //$NON-NLS-1$ 204 } 205 206 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 207 && dataType != DataBuffer.TYPE_INT) { 208 // awt.230=dataType is not one of the supported data types 209 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 210 } 211 212 int maxOffset = bandOffsets[0]; 213 int maxBank = bankIndices[0]; 214 215 for (int i = 0; i < bankIndices.length; i++) { 216 if (bandOffsets[i] > maxOffset) { 217 maxOffset = bandOffsets[i]; 218 } 219 if (bankIndices[i] > maxBank) { 220 maxBank = bankIndices[i]; 221 } 222 } 223 224 int numBanks = maxBank + 1; 225 int dataSize = scanlineStride * (h - 1) + w + maxOffset; 226 227 DataBuffer data = null; 228 229 switch (dataType) { 230 case DataBuffer.TYPE_BYTE: 231 data = new DataBufferByte(dataSize, numBanks); 232 break; 233 case DataBuffer.TYPE_USHORT: 234 data = new DataBufferUShort(dataSize, numBanks); 235 break; 236 case DataBuffer.TYPE_INT: 237 data = new DataBufferInt(dataSize, numBanks); 238 break; 239 } 240 return createBandedRaster(data, w, h, scanlineStride, bankIndices, bandOffsets, location); 241 } 242 243 /** 244 * Creates a Raster object with a BandedSampleModel and the specified data 245 * type. The Data type can be one of the following values: TYPE_BYTE, 246 * TYPE_USHORT, or TYPE_INT. 247 * 248 * @param dataType 249 * the data type of the samples: TYPE_BYTE, TYPE_USHORT, or 250 * TYPE_INT. 251 * @param w 252 * the width of the image data. 253 * @param h 254 * the height of the image data. 255 * @param bands 256 * the number of bands. 257 * @param location 258 * the location which defines the upper left corner of the 259 * Raster. 260 * @return the WritableRaster object. 261 */ createBandedRaster(int dataType, int w, int h, int bands, Point location)262 public static WritableRaster createBandedRaster(int dataType, int w, int h, int bands, 263 Point location) { 264 265 if (w <= 0 || h <= 0) { 266 // awt.22E=w or h is less than or equal to zero 267 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 268 } 269 270 if (location == null) { 271 location = new Point(0, 0); 272 } 273 274 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 275 // awt.276=location.x + w or location.y + h results in integer 276 // overflow 277 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 278 } 279 280 if (bands < 1) { 281 // awt.279=bands is less than 1 282 throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.279")); //$NON-NLS-1$ 283 } 284 285 int bandOffsets[] = new int[bands]; 286 int bankIndices[] = new int[bands]; 287 288 for (int i = 0; i < bands; i++) { 289 bandOffsets[i] = 0; 290 bankIndices[i] = i; 291 } 292 return createBandedRaster(dataType, w, h, w, bankIndices, bandOffsets, location); 293 } 294 295 /** 296 * Creates a Raster object with a PixelInterleavedSampleModel and the 297 * specified DataBuffer. 298 * 299 * @param dataBuffer 300 * the DataBuffer. 301 * @param w 302 * the width of image data. 303 * @param h 304 * the height of image data. 305 * @param scanlineStride 306 * the scanline stride of the image data. 307 * @param pixelStride 308 * the pixel stride of image data. 309 * @param bandOffsets 310 * the band offsets of bands. 311 * @param location 312 * the location which defines the upper left corner of the 313 * Raster. 314 * @return the WritableRaster object. 315 */ createInterleavedRaster(DataBuffer dataBuffer, int w, int h, int scanlineStride, int pixelStride, int bandOffsets[], Point location)316 public static WritableRaster createInterleavedRaster(DataBuffer dataBuffer, int w, int h, 317 int scanlineStride, int pixelStride, int bandOffsets[], Point location) { 318 319 if (w <= 0 || h <= 0) { 320 // awt.22E=w or h is less than or equal to zero 321 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 322 } 323 324 if (location == null) { 325 location = new Point(0, 0); 326 } 327 328 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 329 // awt.276=location.x + w or location.y + h results in integer 330 // overflow 331 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 332 } 333 334 if (dataBuffer == null) { 335 // awt.278=dataBuffer is null 336 throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$ 337 } 338 339 int dataType = dataBuffer.getDataType(); 340 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) { 341 // awt.230=dataType is not one of the supported data types 342 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 343 } 344 345 if (dataBuffer.getNumBanks() > 1) { 346 // awt.27A=dataBuffer has more than one bank 347 throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$ 348 } 349 350 if (bandOffsets == null) { 351 // awt.27B=bandOffsets is null 352 throw new NullPointerException(Messages.getString("awt.27B")); //$NON-NLS-1$ 353 } 354 355 PixelInterleavedSampleModel sampleModel = new PixelInterleavedSampleModel(dataType, w, h, 356 pixelStride, scanlineStride, bandOffsets); 357 358 return new OrdinaryWritableRaster(sampleModel, dataBuffer, location); 359 360 } 361 362 /** 363 * Creates a Raster object with a PixelInterleavedSampleModel and the 364 * specified data type. The Data type can be one of the following values: 365 * TYPE_BYTE, TYPE_USHORT, or TYPE_INT. 366 * 367 * @param dataType 368 * the data type of the samples: TYPE_BYTE, TYPE_USHORT, or 369 * TYPE_INT. 370 * @param w 371 * the width of image data. 372 * @param h 373 * the height of image data. 374 * @param scanlineStride 375 * the scanline stride of the image data. 376 * @param pixelStride 377 * the pixel stride of image data. 378 * @param bandOffsets 379 * the band offsets of bands. 380 * @param location 381 * the location which defines the upper left corner of the 382 * Raster. 383 * @return the WritableRaster object. 384 */ createInterleavedRaster(int dataType, int w, int h, int scanlineStride, int pixelStride, int bandOffsets[], Point location)385 public static WritableRaster createInterleavedRaster(int dataType, int w, int h, 386 int scanlineStride, int pixelStride, int bandOffsets[], Point location) { 387 388 if (w <= 0 || h <= 0) { 389 // awt.22E=w or h is less than or equal to zero 390 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 391 } 392 393 if (location == null) { 394 location = new Point(0, 0); 395 } 396 397 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 398 // awt.276=location.x + w or location.y + h results in integer 399 // overflow 400 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 401 } 402 403 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) { 404 // awt.230=dataType is not one of the supported data types 405 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 406 } 407 408 if (bandOffsets == null) { 409 // awt.27B=bandOffsets is null 410 throw new NullPointerException(Messages.getString("awt.27B")); //$NON-NLS-1$ 411 } 412 413 int minOffset = bandOffsets[0]; 414 for (int i = 1; i < bandOffsets.length; i++) { 415 if (bandOffsets[i] < minOffset) { 416 minOffset = bandOffsets[i]; 417 } 418 } 419 int size = (h - 1) * scanlineStride + w * pixelStride + minOffset; 420 DataBuffer data = null; 421 422 switch (dataType) { 423 case DataBuffer.TYPE_BYTE: 424 data = new DataBufferByte(size); 425 break; 426 case DataBuffer.TYPE_USHORT: 427 data = new DataBufferUShort(size); 428 break; 429 } 430 431 return createInterleavedRaster(data, w, h, scanlineStride, pixelStride, bandOffsets, 432 location); 433 } 434 435 /** 436 * Creates a Raster object with a PixelInterleavedSampleModel and the 437 * specified data type. The Data type can be one of the following values: 438 * TYPE_BYTE, TYPE_USHORT, or TYPE_INT. 439 * 440 * @param dataType 441 * the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT. 442 * @param w 443 * the width of image data. 444 * @param h 445 * the height of image data. 446 * @param bands 447 * the number of bands. 448 * @param location 449 * the location which defines the upper left corner of the 450 * Raster. 451 * @return the WritableRaster. 452 */ createInterleavedRaster(int dataType, int w, int h, int bands, Point location)453 public static WritableRaster createInterleavedRaster(int dataType, int w, int h, int bands, 454 Point location) { 455 456 if (w <= 0 || h <= 0) { 457 // awt.22E=w or h is less than or equal to zero 458 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 459 } 460 461 if (location == null) { 462 location = new Point(0, 0); 463 } 464 465 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 466 // awt.276=location.x + w or location.y + h results in integer 467 // overflow 468 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 469 } 470 471 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) { 472 // awt.230=dataType is not one of the supported data types 473 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 474 } 475 476 int bandOffsets[] = new int[bands]; 477 for (int i = 0; i < bands; i++) { 478 bandOffsets[i] = i; 479 } 480 481 return createInterleavedRaster(dataType, w, h, w * bands, bands, bandOffsets, location); 482 } 483 484 /** 485 * Creates a Raster object with a SinglePixelPackedSampleModel and the 486 * specified DataBuffer. 487 * 488 * @param dataBuffer 489 * the DataBuffer. 490 * @param w 491 * the width of the image data. 492 * @param h 493 * the height of the image data. 494 * @param scanlineStride 495 * the scanline stride of the image data. 496 * @param bandMasks 497 * the band masks. 498 * @param location 499 * the location which defines the upper left corner of the 500 * Raster. 501 * @return the WritableRaster. 502 */ createPackedRaster(DataBuffer dataBuffer, int w, int h, int scanlineStride, int bandMasks[], Point location)503 public static WritableRaster createPackedRaster(DataBuffer dataBuffer, int w, int h, 504 int scanlineStride, int bandMasks[], Point location) { 505 if (dataBuffer == null) { 506 // awt.278=dataBuffer is null 507 throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$ 508 } 509 510 if (w <= 0 || h <= 0) { 511 // awt.22E=w or h is less than or equal to zero 512 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 513 } 514 515 if (location == null) { 516 location = new Point(0, 0); 517 } 518 519 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 520 // awt.276=location.x + w or location.y + h results in integer 521 // overflow 522 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 523 } 524 525 if (bandMasks == null) { 526 // awt.27C=bandMasks is null 527 throw new RasterFormatException(Messages.getString("awt.27C")); //$NON-NLS-1$ 528 } 529 530 if (dataBuffer.getNumBanks() > 1) { 531 // awt.27A=dataBuffer has more than one bank 532 throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$ 533 } 534 535 int dataType = dataBuffer.getDataType(); 536 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 537 && dataType != DataBuffer.TYPE_INT) { 538 // awt.230=dataType is not one of the supported data types 539 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 540 } 541 542 SinglePixelPackedSampleModel sampleModel = new SinglePixelPackedSampleModel(dataType, w, h, 543 scanlineStride, bandMasks); 544 545 return new OrdinaryWritableRaster(sampleModel, dataBuffer, location); 546 } 547 548 /** 549 * Creates a Raster object with a MultiPixelPackedSampleModel and the 550 * specified DataBuffer. 551 * 552 * @param dataBuffer 553 * the DataBuffer. 554 * @param w 555 * the width of the image data. 556 * @param h 557 * the height of the image data. 558 * @param bitsPerPixel 559 * the number of bits per pixel. 560 * @param location 561 * the location which defines the upper left corner of the 562 * Raster. 563 * @return the WritableRaster. 564 */ createPackedRaster(DataBuffer dataBuffer, int w, int h, int bitsPerPixel, Point location)565 public static WritableRaster createPackedRaster(DataBuffer dataBuffer, int w, int h, 566 int bitsPerPixel, Point location) { 567 568 if (w <= 0 || h <= 0) { 569 // awt.22E=w or h is less than or equal to zero 570 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 571 } 572 573 if (location == null) { 574 location = new Point(0, 0); 575 } 576 577 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 578 // awt.276=location.x + w or location.y + h results in integer 579 // overflow 580 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 581 } 582 583 if (dataBuffer == null) { 584 // awt.278=dataBuffer is null 585 throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$ 586 } 587 588 if (dataBuffer.getNumBanks() > 1) { 589 // awt.27A=dataBuffer has more than one bank 590 throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$ 591 } 592 593 int dataType = dataBuffer.getDataType(); 594 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 595 && dataType != DataBuffer.TYPE_INT) { 596 // awt.230=dataType is not one of the supported data types 597 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 598 } 599 600 MultiPixelPackedSampleModel sampleModel = new MultiPixelPackedSampleModel(dataType, w, h, 601 bitsPerPixel); 602 603 return new OrdinaryWritableRaster(sampleModel, dataBuffer, location); 604 605 } 606 607 /** 608 * Creates a Raster object with a MultiPixelPackedSampleModel and the 609 * specified DataBuffer. 610 * 611 * @param dataType 612 * the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT. 613 * @param w 614 * the width of the image data. 615 * @param h 616 * the height of the image data. 617 * @param bands 618 * the number of bands. 619 * @param bitsPerBand 620 * the number of bits per band. 621 * @param location 622 * the location which defines the upper left corner of the 623 * Raster. 624 * @return the WritableRaster. 625 */ createPackedRaster(int dataType, int w, int h, int bands, int bitsPerBand, Point location)626 public static WritableRaster createPackedRaster(int dataType, int w, int h, int bands, 627 int bitsPerBand, Point location) { 628 629 if (w <= 0 || h <= 0) { 630 // awt.22E=w or h is less than or equal to zero 631 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 632 } 633 634 if (location == null) { 635 location = new Point(0, 0); 636 } 637 638 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 639 // awt.276=location.x + w or location.y + h results in integer 640 // overflow 641 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 642 } 643 644 if (bands < 1 || bitsPerBand < 1) { 645 // awt.27D=bitsPerBand or bands is not greater than zero 646 throw new IllegalArgumentException(Messages.getString("awt.27D")); //$NON-NLS-1$ 647 } 648 649 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 650 && dataType != DataBuffer.TYPE_INT) { 651 // awt.230=dataType is not one of the supported data types 652 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 653 } 654 655 if (bitsPerBand * bands > DataBuffer.getDataTypeSize(dataType)) { 656 // awt.27E=The product of bitsPerBand and bands is greater than the 657 // number of bits held by dataType 658 throw new IllegalArgumentException(Messages.getString("awt.27E")); //$NON-NLS-1$ 659 } 660 661 if (bands > 1) { 662 663 int bandMasks[] = new int[bands]; 664 int mask = (1 << bitsPerBand) - 1; 665 666 for (int i = 0; i < bands; i++) { 667 bandMasks[i] = mask << (bitsPerBand * (bands - 1 - i)); 668 } 669 670 return createPackedRaster(dataType, w, h, bandMasks, location); 671 } 672 DataBuffer data = null; 673 int size = ((bitsPerBand * w + DataBuffer.getDataTypeSize(dataType) - 1) / DataBuffer 674 .getDataTypeSize(dataType)) 675 * h; 676 677 switch (dataType) { 678 case DataBuffer.TYPE_BYTE: 679 data = new DataBufferByte(size); 680 break; 681 case DataBuffer.TYPE_USHORT: 682 data = new DataBufferUShort(size); 683 break; 684 case DataBuffer.TYPE_INT: 685 data = new DataBufferInt(size); 686 break; 687 } 688 return createPackedRaster(data, w, h, bitsPerBand, location); 689 } 690 691 /** 692 * Creates a Raster object with a SinglePixelPackedSampleModel and the 693 * specified DataBuffer. 694 * 695 * @param dataType 696 * the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT. 697 * @param w 698 * the width of the image data. 699 * @param h 700 * the height of the image data. 701 * @param bandMasks 702 * the band masks. 703 * @param location 704 * the location which defines the upper left corner of the 705 * Raster. 706 * @return the WritableRaster. 707 */ createPackedRaster(int dataType, int w, int h, int bandMasks[], Point location)708 public static WritableRaster createPackedRaster(int dataType, int w, int h, int bandMasks[], 709 Point location) { 710 711 if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT 712 && dataType != DataBuffer.TYPE_INT) { 713 // awt.230=dataType is not one of the supported data types 714 throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$ 715 } 716 717 if (w <= 0 || h <= 0) { 718 // awt.22E=w or h is less than or equal to zero 719 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 720 } 721 722 if (location == null) { 723 location = new Point(0, 0); 724 } 725 726 if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) { 727 // awt.276=location.x + w or location.y + h results in integer 728 // overflow 729 throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$ 730 } 731 732 if (bandMasks == null) { 733 // awt.27C=bandMasks is null 734 throw new NullPointerException(Messages.getString("awt.27C")); //$NON-NLS-1$ 735 } 736 737 DataBuffer data = null; 738 739 switch (dataType) { 740 case DataBuffer.TYPE_BYTE: 741 data = new DataBufferByte(w * h); 742 break; 743 case DataBuffer.TYPE_USHORT: 744 data = new DataBufferUShort(w * h); 745 break; 746 case DataBuffer.TYPE_INT: 747 data = new DataBufferInt(w * h); 748 break; 749 } 750 751 return createPackedRaster(data, w, h, w, bandMasks, location); 752 } 753 754 /** 755 * Creates a Raster object with the specified DataBuffer and SampleModel. 756 * 757 * @param sm 758 * the specified SampleModel. 759 * @param db 760 * the specified DataBuffer. 761 * @param location 762 * the location which defines the upper left corner of the 763 * Raster. 764 * @return the Raster. 765 */ createRaster(SampleModel sm, DataBuffer db, Point location)766 public static Raster createRaster(SampleModel sm, DataBuffer db, Point location) { 767 768 if (sm == null || db == null) { 769 // awt.27F=SampleModel or DataBuffer is null 770 throw new NullPointerException(Messages.getString("awt.27F")); //$NON-NLS-1$ 771 } 772 773 if (location == null) { 774 location = new Point(0, 0); 775 } 776 777 return new Raster(sm, db, location); 778 } 779 780 /** 781 * Creates a WritableRaster with the specified SampleModel and DataBuffer. 782 * 783 * @param sm 784 * the specified SampleModel. 785 * @param db 786 * the specified DataBuffer. 787 * @param location 788 * the location which defines the upper left corner of the 789 * Raster. 790 * @return the WritableRaster. 791 */ createWritableRaster(SampleModel sm, DataBuffer db, Point location)792 public static WritableRaster createWritableRaster(SampleModel sm, DataBuffer db, Point location) { 793 794 if (sm == null || db == null) { 795 // awt.27F=SampleModel or DataBuffer is null 796 throw new NullPointerException(Messages.getString("awt.27F")); //$NON-NLS-1$ 797 } 798 799 if (location == null) { 800 location = new Point(0, 0); 801 } 802 803 return new OrdinaryWritableRaster(sm, db, location); 804 } 805 806 /** 807 * Creates a WritableRaster with the specified SampleModel. 808 * 809 * @param sm 810 * the specified SampleModel. 811 * @param location 812 * the location which defines the upper left corner of the 813 * Raster. 814 * @return the WritableRaster. 815 */ createWritableRaster(SampleModel sm, Point location)816 public static WritableRaster createWritableRaster(SampleModel sm, Point location) { 817 818 if (sm == null) { 819 // awt.280=SampleModel is null 820 throw new NullPointerException(Messages.getString("awt.280")); //$NON-NLS-1$ 821 } 822 823 if (location == null) { 824 location = new Point(0, 0); 825 } 826 827 return createWritableRaster(sm, sm.createDataBuffer(), location); 828 } 829 830 /** 831 * Instantiates a new Raster object with the specified SampleModel and 832 * DataBuffer. 833 * 834 * @param sampleModel 835 * the specified SampleModel. 836 * @param dataBuffer 837 * the specified DataBuffer. 838 * @param origin 839 * the specified origin. 840 */ Raster(SampleModel sampleModel, DataBuffer dataBuffer, Point origin)841 protected Raster(SampleModel sampleModel, DataBuffer dataBuffer, Point origin) { 842 843 this(sampleModel, dataBuffer, new Rectangle(origin.x, origin.y, sampleModel.getWidth(), 844 sampleModel.getHeight()), origin, null); 845 } 846 847 /** 848 * Instantiates a new Raster object with the specified SampleModel, 849 * DataBuffer, rectangular region and parent Raster. 850 * 851 * @param sampleModel 852 * the specified SampleModel. 853 * @param dataBuffer 854 * the specified DataBuffer. 855 * @param aRegion 856 * the a rectangular region which defines the new image bounds. 857 * @param sampleModelTranslate 858 * this point defines the translation point from the SampleModel 859 * coordinates to the new Raster coordinates. 860 * @param parent 861 * the parent of this Raster. 862 */ Raster(SampleModel sampleModel, DataBuffer dataBuffer, Rectangle aRegion, Point sampleModelTranslate, Raster parent)863 protected Raster(SampleModel sampleModel, DataBuffer dataBuffer, Rectangle aRegion, 864 Point sampleModelTranslate, Raster parent) { 865 866 if (sampleModel == null || dataBuffer == null || aRegion == null 867 || sampleModelTranslate == null) { 868 // awt.281=sampleModel, dataBuffer, aRegion or sampleModelTranslate 869 // is null 870 throw new NullPointerException(Messages.getString("awt.281")); //$NON-NLS-1$ 871 } 872 873 if (aRegion.width <= 0 || aRegion.height <= 0) { 874 // awt.282=aRegion has width or height less than or equal to zero 875 throw new RasterFormatException(Messages.getString("awt.282")); //$NON-NLS-1$ 876 } 877 878 if ((long)aRegion.x + (long)aRegion.width > Integer.MAX_VALUE) { 879 // awt.283=Overflow X coordinate of Raster 880 throw new RasterFormatException(Messages.getString("awt.283")); //$NON-NLS-1$ 881 } 882 883 if ((long)aRegion.y + (long)aRegion.height > Integer.MAX_VALUE) { 884 // awt.284=Overflow Y coordinate of Raster 885 throw new RasterFormatException(Messages.getString("awt.284")); //$NON-NLS-1$ 886 } 887 888 if (sampleModel instanceof ComponentSampleModel) { 889 validateDataBuffer(dataBuffer, aRegion.width, aRegion.height, 890 ((ComponentSampleModel)sampleModel).getScanlineStride()); 891 } else if (sampleModel instanceof MultiPixelPackedSampleModel) { 892 validateDataBuffer(dataBuffer, aRegion.width, aRegion.height, 893 ((MultiPixelPackedSampleModel)sampleModel).getScanlineStride()); 894 } else if (sampleModel instanceof SinglePixelPackedSampleModel) { 895 validateDataBuffer(dataBuffer, aRegion.width, aRegion.height, 896 ((SinglePixelPackedSampleModel)sampleModel).getScanlineStride()); 897 } 898 899 this.sampleModel = sampleModel; 900 this.dataBuffer = dataBuffer; 901 this.minX = aRegion.x; 902 this.minY = aRegion.y; 903 this.width = aRegion.width; 904 this.height = aRegion.height; 905 this.sampleModelTranslateX = sampleModelTranslate.x; 906 this.sampleModelTranslateY = sampleModelTranslate.y; 907 this.parent = parent; 908 this.numBands = sampleModel.getNumBands(); 909 this.numDataElements = sampleModel.getNumDataElements(); 910 911 } 912 913 /** 914 * Instantiates a new Raster with the specified SampleModel. 915 * 916 * @param sampleModel 917 * the specified SampleModel. 918 * @param origin 919 * the origin. 920 */ Raster(SampleModel sampleModel, Point origin)921 protected Raster(SampleModel sampleModel, Point origin) { 922 this(sampleModel, sampleModel.createDataBuffer(), new Rectangle(origin.x, origin.y, 923 sampleModel.getWidth(), sampleModel.getHeight()), origin, null); 924 } 925 926 /** 927 * Creates the child of this Raster by sharing the specified rectangular 928 * area in this raster. The parentX, parentY, width and height parameters 929 * specify the rectangular area to be shared. 930 * 931 * @param parentX 932 * the X coordinate of the upper left corner of this Raster. 933 * @param parentY 934 * the Y coordinate of the upper left corner of this Raster. 935 * @param width 936 * the width of the child area. 937 * @param height 938 * the height of the child area. 939 * @param childMinX 940 * the X coordinate of child area mapped to the parentX 941 * coordinate. 942 * @param childMinY 943 * the Y coordinate of child area mapped to the parentY 944 * coordinate. 945 * @param bandList 946 * the array of band indices. 947 * @return the Raster. 948 */ createChild(int parentX, int parentY, int width, int height, int childMinX, int childMinY, int bandList[])949 public Raster createChild(int parentX, int parentY, int width, int height, int childMinX, 950 int childMinY, int bandList[]) { 951 if (width <= 0 || height <= 0) { 952 // awt.285=Width or Height of child Raster is less than or equal to 953 // zero 954 throw new RasterFormatException(Messages.getString("awt.285")); //$NON-NLS-1$ 955 } 956 957 if (parentX < this.minX || parentX + width > this.minX + this.width) { 958 // awt.286=parentX disposes outside Raster 959 throw new RasterFormatException(Messages.getString("awt.286")); //$NON-NLS-1$ 960 } 961 962 if (parentY < this.minY || parentY + height > this.minY + this.height) { 963 // awt.287=parentY disposes outside Raster 964 throw new RasterFormatException(Messages.getString("awt.287")); //$NON-NLS-1$ 965 } 966 967 if ((long)parentX + width > Integer.MAX_VALUE) { 968 // awt.288=parentX + width results in integer overflow 969 throw new RasterFormatException(Messages.getString("awt.288")); //$NON-NLS-1$ 970 } 971 972 if ((long)parentY + height > Integer.MAX_VALUE) { 973 // awt.289=parentY + height results in integer overflow 974 throw new RasterFormatException(Messages.getString("awt.289")); //$NON-NLS-1$ 975 } 976 977 if ((long)childMinX + width > Integer.MAX_VALUE) { 978 // awt.28A=childMinX + width results in integer overflow 979 throw new RasterFormatException(Messages.getString("awt.28A")); //$NON-NLS-1$ 980 } 981 982 if ((long)childMinY + height > Integer.MAX_VALUE) { 983 // awt.28B=childMinY + height results in integer overflow 984 throw new RasterFormatException(Messages.getString("awt.28B")); //$NON-NLS-1$ 985 } 986 987 SampleModel childModel; 988 989 if (bandList == null) { 990 childModel = sampleModel; 991 } else { 992 childModel = sampleModel.createSubsetSampleModel(bandList); 993 } 994 995 int childTranslateX = childMinX - parentX; 996 int childTranslateY = childMinY - parentY; 997 998 return new Raster(childModel, dataBuffer, 999 new Rectangle(childMinX, childMinY, width, height), new Point(childTranslateX 1000 + sampleModelTranslateX, childTranslateY + sampleModelTranslateY), this); 1001 } 1002 1003 /** 1004 * Create a compatible WritableRaster with the same parameters as this 1005 * Raster. 1006 * 1007 * @return the WritableRaster. 1008 */ createCompatibleWritableRaster()1009 public WritableRaster createCompatibleWritableRaster() { 1010 return new OrdinaryWritableRaster(sampleModel, new Point(0, 0)); 1011 } 1012 1013 /** 1014 * Create a compatible WritableRaster with the same parameters as this 1015 * Raster and the specified size. 1016 * 1017 * @param w 1018 * the width of the new WritableRaster. 1019 * @param h 1020 * the height of the new WritableRaster. 1021 * @return the WritableRaster. 1022 */ createCompatibleWritableRaster(int w, int h)1023 public WritableRaster createCompatibleWritableRaster(int w, int h) { 1024 if (w <= 0 || h <= 0) { 1025 // awt.22E=w or h is less than or equal to zero 1026 throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$ 1027 } 1028 1029 SampleModel sm = sampleModel.createCompatibleSampleModel(w, h); 1030 1031 return new OrdinaryWritableRaster(sm, new Point(0, 0)); 1032 } 1033 1034 /** 1035 * Create a compatible WritableRaster with the same parameters as this 1036 * Raster and the specified size and location. 1037 * 1038 * @param x 1039 * the X coordinate of the new WritableRaster. 1040 * @param y 1041 * the Y coordinate of the new WritableRaster. 1042 * @param w 1043 * the width of the new WritableRaster. 1044 * @param h 1045 * the height of the new WritableRaster. 1046 * @return the WritableRaster. 1047 */ createCompatibleWritableRaster(int x, int y, int w, int h)1048 public WritableRaster createCompatibleWritableRaster(int x, int y, int w, int h) { 1049 1050 WritableRaster raster = createCompatibleWritableRaster(w, h); 1051 1052 return raster.createWritableChild(0, 0, w, h, x, y, null); 1053 } 1054 1055 /** 1056 * Create a compatible WritableRaster with the same parameters as this 1057 * Raster and the specified rectangle which determines new WritableRaster's 1058 * location and size. 1059 * 1060 * @param rect 1061 * the specified Rectangle. 1062 * @return the WritableRaster. 1063 */ createCompatibleWritableRaster(Rectangle rect)1064 public WritableRaster createCompatibleWritableRaster(Rectangle rect) { 1065 if (rect == null) { 1066 // awt.28C=Rect is null 1067 throw new NullPointerException(Messages.getString("awt.28C")); //$NON-NLS-1$ 1068 } 1069 1070 return createCompatibleWritableRaster(rect.x, rect.y, rect.width, rect.height); 1071 } 1072 1073 /** 1074 * Creates the translated child of this Raster. The New Raster object is a 1075 * reference to the this Raster with a different location. 1076 * 1077 * @param childMinX 1078 * the X coordinate of the new Raster. 1079 * @param childMinY 1080 * the Y coordinate of the new Raster. 1081 * @return the Raster. 1082 */ createTranslatedChild(int childMinX, int childMinY)1083 public Raster createTranslatedChild(int childMinX, int childMinY) { 1084 return createChild(minX, minY, width, height, childMinX, childMinY, null); 1085 } 1086 1087 /** 1088 * Gets the bounds of this Raster as a rectangle. 1089 * 1090 * @return the bounds of this Raster. 1091 */ getBounds()1092 public Rectangle getBounds() { 1093 return new Rectangle(minX, minY, width, height); 1094 } 1095 1096 /** 1097 * Gets the DataBuffer associated with this Raster. 1098 * 1099 * @return the DataBuffer associated with this Raster. 1100 */ getDataBuffer()1101 public DataBuffer getDataBuffer() { 1102 return dataBuffer; 1103 } 1104 1105 /** 1106 * Gets the data elements which represent the pixel data of the specified 1107 * rectangle area as a primitive array. The following image data types are 1108 * supported: DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, 1109 * DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or 1110 * DataBuffer.TYPE_DOUBLE. 1111 * 1112 * @param x 1113 * the X coordinate of the area of pixels. 1114 * @param y 1115 * the Y coordinate of the area of pixels. 1116 * @param w 1117 * the width of the area of pixels. 1118 * @param h 1119 * the height of the area of pixels. 1120 * @param outData 1121 * the resulting array. 1122 * @return the data elements of the specified area of this Raster. 1123 */ getDataElements(int x, int y, int w, int h, Object outData)1124 public Object getDataElements(int x, int y, int w, int h, Object outData) { 1125 return sampleModel.getDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY, w, 1126 h, outData, dataBuffer); 1127 } 1128 1129 /** 1130 * Gets the data elements which represent the specified pixel of this Raster 1131 * as a primitive array. The following image data types are supported: 1132 * DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT, 1133 * DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE. 1134 * 1135 * @param x 1136 * the X coordinate of the pixel. 1137 * @param y 1138 * the Y coordinate of the pixel. 1139 * @param outData 1140 * the resulting data. 1141 * @return the data elements of the specified pixel of this Raster. 1142 */ getDataElements(int x, int y, Object outData)1143 public Object getDataElements(int x, int y, Object outData) { 1144 return sampleModel.getDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY, 1145 outData, dataBuffer); 1146 } 1147 1148 /** 1149 * Gets the height of this Raster. 1150 * 1151 * @return the height of this Raster. 1152 */ getHeight()1153 public final int getHeight() { 1154 return height; 1155 } 1156 1157 /** 1158 * Gets the minimum X coordinate of this Raster. 1159 * 1160 * @return the minimum X coordinate of this Raster. 1161 */ getMinX()1162 public final int getMinX() { 1163 return minX; 1164 } 1165 1166 /** 1167 * Gets the minimum Y coordinate of this Raster. 1168 * 1169 * @return the minimum Y coordinate of this Raster. 1170 */ getMinY()1171 public final int getMinY() { 1172 return minY; 1173 } 1174 1175 /** 1176 * Gets the number of bands in this Raster. 1177 * 1178 * @return the number of bands in this Raster. 1179 */ getNumBands()1180 public final int getNumBands() { 1181 return numBands; 1182 } 1183 1184 /** 1185 * Gets the number of data elements for one pixel. 1186 * 1187 * @return the number of data elements for one pixel. 1188 */ getNumDataElements()1189 public final int getNumDataElements() { 1190 return numDataElements; 1191 } 1192 1193 /** 1194 * Gets the parent Raster for this Raster object. 1195 * 1196 * @return the parent Raster for this Raster object. 1197 */ getParent()1198 public Raster getParent() { 1199 return parent; 1200 } 1201 1202 /** 1203 * Gets a double array of samples for the specified pixel in this Raster. 1204 * 1205 * @param x 1206 * the pixel's X coordinate. 1207 * @param y 1208 * the pixel's Y coordinate. 1209 * @param dArray 1210 * the double array where result array will be stored. 1211 * @return the double array of samples for the specified pixel in this 1212 * Raster. 1213 */ getPixel(int x, int y, double dArray[])1214 public double[] getPixel(int x, int y, double dArray[]) { 1215 return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, dArray, 1216 dataBuffer); 1217 } 1218 1219 /** 1220 * Gets a float array of samples for the specified pixel in this Raster. 1221 * 1222 * @param x 1223 * the pixel's X coordinate. 1224 * @param y 1225 * the pixel's Y coordinate. 1226 * @param fArray 1227 * the float array where the result array will be stored. 1228 * @return the float array of samples for the specified pixel in this 1229 * Raster. 1230 */ getPixel(int x, int y, float fArray[])1231 public float[] getPixel(int x, int y, float fArray[]) { 1232 return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, fArray, 1233 dataBuffer); 1234 } 1235 1236 /** 1237 * Gets an integer array of samples for the specified pixel in this Raster. 1238 * 1239 * @param x 1240 * the pixel's X coordinate. 1241 * @param y 1242 * the pixel's Y coordinate. 1243 * @param iArray 1244 * the integer array where the result array will be stored. 1245 * @return the integer array of samples for the specified pixel in this 1246 * Raster. 1247 */ getPixel(int x, int y, int iArray[])1248 public int[] getPixel(int x, int y, int iArray[]) { 1249 return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, iArray, 1250 dataBuffer); 1251 } 1252 1253 /** 1254 * Gets an double array of samples for the specified rectangular area of 1255 * pixels in this Raster. 1256 * 1257 * @param x 1258 * the X coordinate of the area of pixels. 1259 * @param y 1260 * the Y coordinate of the area of pixels. 1261 * @param w 1262 * the width of the area of pixels. 1263 * @param h 1264 * the height of the area of pixels. 1265 * @param dArray 1266 * the resulting array. 1267 * @return the double array of samples for the specified rectangular area of 1268 * pixels in this Raster. 1269 */ getPixels(int x, int y, int w, int h, double dArray[])1270 public double[] getPixels(int x, int y, int w, int h, double dArray[]) { 1271 return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1272 dArray, dataBuffer); 1273 } 1274 1275 /** 1276 * Gets an float array of samples for the specified rectangular area of 1277 * pixels in this Raster. 1278 * 1279 * @param x 1280 * the X coordinate of the area of pixels. 1281 * @param y 1282 * the Y coordinate of the area of pixels. 1283 * @param w 1284 * the width of the area of pixels. 1285 * @param h 1286 * the height of the area of pixels. 1287 * @param fArray 1288 * the resulting array. 1289 * @return the float array of samples for the specified rectangular area of 1290 * pixels in this Raster. 1291 */ getPixels(int x, int y, int w, int h, float fArray[])1292 public float[] getPixels(int x, int y, int w, int h, float fArray[]) { 1293 return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1294 fArray, dataBuffer); 1295 } 1296 1297 /** 1298 * Gets an integer array of samples for the specified rectangular area of 1299 * pixels in this raster. 1300 * 1301 * @param x 1302 * the X coordinate of the area of pixels. 1303 * @param y 1304 * the Y coordinate of the area of pixels. 1305 * @param w 1306 * the width of pixel's the area of pixels. 1307 * @param h 1308 * the height of pixel's the area of pixels. 1309 * @param iArray 1310 * the resulting array. 1311 * @return the integer array of samples for the specified rectangular area 1312 * of pixels in this Raster. 1313 */ getPixels(int x, int y, int w, int h, int iArray[])1314 public int[] getPixels(int x, int y, int w, int h, int iArray[]) { 1315 return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1316 iArray, dataBuffer); 1317 } 1318 1319 /** 1320 * Gets the sample for the specified band of the specified pixel as an 1321 * integer. 1322 * 1323 * @param x 1324 * the X coordinate of the pixel. 1325 * @param y 1326 * the Y coordinate of the pixel. 1327 * @param b 1328 * the band. 1329 * @return the sample for the specified band of the specified pixel as an 1330 * integer. 1331 */ getSample(int x, int y, int b)1332 public int getSample(int x, int y, int b) { 1333 return sampleModel.getSample(x - sampleModelTranslateX, y - sampleModelTranslateY, b, 1334 dataBuffer); 1335 } 1336 1337 /** 1338 * Gets the sample for the specified band of the specified pixel as a 1339 * double. 1340 * 1341 * @param x 1342 * the X coordinate of the pixel. 1343 * @param y 1344 * the Y coordinate of the pixel. 1345 * @param b 1346 * the band. 1347 * @return the sample for the specified band of the specified pixel as a 1348 * double. 1349 */ getSampleDouble(int x, int y, int b)1350 public double getSampleDouble(int x, int y, int b) { 1351 return sampleModel.getSampleDouble(x - sampleModelTranslateX, y - sampleModelTranslateY, b, 1352 dataBuffer); 1353 } 1354 1355 /** 1356 * Gets the sample for the specified band of the specified pixel as a float. 1357 * 1358 * @param x 1359 * the X coordinate of the pixel. 1360 * @param y 1361 * the Y coordinate of the pixel. 1362 * @param b 1363 * the band. 1364 * @return the sample for the specified band of the specified pixel as a 1365 * float. 1366 */ getSampleFloat(int x, int y, int b)1367 public float getSampleFloat(int x, int y, int b) { 1368 return sampleModel.getSampleFloat(x - sampleModelTranslateX, y - sampleModelTranslateY, b, 1369 dataBuffer); 1370 } 1371 1372 /** 1373 * Gets the SampleModel associated with this Raster. 1374 * 1375 * @return the SampleModel associated with this Raster. 1376 */ getSampleModel()1377 public SampleModel getSampleModel() { 1378 return sampleModel; 1379 } 1380 1381 /** 1382 * Gets the translation of the X coordinate from the SampleModel coordinate 1383 * system to the Rasters's coordinate system. 1384 * 1385 * @return the value of the translation of the X coordinate from the 1386 * SampleModel coordinate system to the Rasters's coordinate system. 1387 */ getSampleModelTranslateX()1388 public final int getSampleModelTranslateX() { 1389 return sampleModelTranslateX; 1390 } 1391 1392 /** 1393 * Gets the translation of the Y coordinate from the SampleModel coordinate 1394 * system to the Rasters's coordinate system. 1395 * 1396 * @return the value of the translation of the Y coordinate from the 1397 * SampleModel coordinate system to the Rasters's coordinate system. 1398 */ getSampleModelTranslateY()1399 public final int getSampleModelTranslateY() { 1400 return sampleModelTranslateY; 1401 } 1402 1403 /** 1404 * Gets the double array of samples for the specified band of the specified 1405 * rectangular area of pixels in this Raster as a double array. 1406 * 1407 * @param x 1408 * the X coordinate of the rectangular area of pixels. 1409 * @param y 1410 * the Y coordinate of the rectangular area of pixels. 1411 * @param w 1412 * the width of the rectangular area of pixels. 1413 * @param h 1414 * the height of the rectangular area of pixels. 1415 * @param b 1416 * the band. 1417 * @param dArray 1418 * the resulting double array. 1419 * @return the double array of samples for the specified band of the 1420 * specified rectangular area of pixels. 1421 */ getSamples(int x, int y, int w, int h, int b, double dArray[])1422 public double[] getSamples(int x, int y, int w, int h, int b, double dArray[]) { 1423 1424 return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1425 b, dArray, dataBuffer); 1426 } 1427 1428 /** 1429 * Gets the float array of samples for the specified band of the specified 1430 * rectangular area of pixels in this Raster as a float array. 1431 * 1432 * @param x 1433 * the X coordinate of the rectangular area of pixels. 1434 * @param y 1435 * the Y coordinate of the rectangular area of pixels. 1436 * @param w 1437 * the width of the rectangular area of pixels. 1438 * @param h 1439 * the height of the rectangular area of pixels. 1440 * @param b 1441 * the band. 1442 * @param fArray 1443 * the resulting float array. 1444 * @return the float array of samples for the specified band of the 1445 * specified rectangular area of pixels. 1446 */ getSamples(int x, int y, int w, int h, int b, float fArray[])1447 public float[] getSamples(int x, int y, int w, int h, int b, float fArray[]) { 1448 1449 return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1450 b, fArray, dataBuffer); 1451 } 1452 1453 /** 1454 * Gets the integer array of samples for the specified band of the specified 1455 * rectangular area of pixels in this Raster as a integer array. 1456 * 1457 * @param x 1458 * the X coordinate of the rectangular area of pixels. 1459 * @param y 1460 * the Y coordinate of the rectangular area of pixels. 1461 * @param w 1462 * the width of the rectangular area of pixels. 1463 * @param h 1464 * the height of the rectangular area of pixels. 1465 * @param b 1466 * the band. 1467 * @param iArray 1468 * the resulting integer array. 1469 * @return the integer array of samples for the specified band of the 1470 * specified rectangular area of pixels. 1471 */ getSamples(int x, int y, int w, int h, int b, int iArray[])1472 public int[] getSamples(int x, int y, int w, int h, int b, int iArray[]) { 1473 return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, 1474 b, iArray, dataBuffer); 1475 } 1476 1477 /** 1478 * Gets the transfer type for pixels of this Raster. 1479 * 1480 * @see SampleModel#getTransferType() 1481 * @return the transfer type for pixels of this Raster. 1482 */ getTransferType()1483 public final int getTransferType() { 1484 return sampleModel.getTransferType(); 1485 } 1486 1487 /** 1488 * Gets the width of this Raster. 1489 * 1490 * @return the width of this Raster. 1491 */ getWidth()1492 public final int getWidth() { 1493 return width; 1494 } 1495 1496 /** 1497 * Validate data buffer. 1498 * 1499 * @param dataBuffer 1500 * the data buffer. 1501 * @param w 1502 * the w. 1503 * @param h 1504 * the h. 1505 * @param scanlineStride 1506 * the scanline stride. 1507 */ validateDataBuffer(final DataBuffer dataBuffer, final int w, final int h, final int scanlineStride)1508 private static void validateDataBuffer(final DataBuffer dataBuffer, final int w, final int h, 1509 final int scanlineStride) { 1510 if (dataBuffer.getSize() < (scanlineStride * (h - 1) + w - 1)) { 1511 // awt.298=dataBuffer is too small 1512 throw new RasterFormatException(Messages.getString("awt.298")); //$NON-NLS-1$ 1513 } 1514 } 1515 } 1516