Source Code Cross Referenced for AddOpImage.java in  » 6.0-JDK-Modules » Java-Advanced-Imaging » com » sun » media » jai » opimage » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » com.sun.media.jai.opimage 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: AddOpImage.java,v $
003:         *
004:         * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * Use is subject to license terms.
007:         *
008:         * $Revision: 1.1 $
009:         * $Date: 2005/02/11 04:56:12 $
010:         * $State: Exp $
011:         */
012:        package com.sun.media.jai.opimage;
013:
014:        import java.awt.Rectangle;
015:        import java.awt.image.DataBuffer;
016:        import java.awt.image.Raster;
017:        import java.awt.image.RenderedImage;
018:        import java.awt.image.SampleModel;
019:        import java.awt.image.WritableRaster;
020:        import javax.media.jai.ImageLayout;
021:        import javax.media.jai.OpImage;
022:        import javax.media.jai.PointOpImage;
023:        import javax.media.jai.RasterAccessor;
024:        import javax.media.jai.RasterFormatTag;
025:        import javax.media.jai.RasterFactory;
026:        import javax.media.jai.TileCache;
027:        import java.util.Map;
028:        import com.sun.media.jai.util.ImageUtil;
029:        import com.sun.media.jai.util.JDKWorkarounds;
030:
031:        /// import com.sun.media.jai.test.OpImageTester;
032:
033:        /**
034:         * An <code>OpImage</code> implementing the "Add" operation as
035:         * described in <code>javax.media.jai.operator.AddDescriptor</code>.
036:         *
037:         * <p>This <code>OpImage</code> adds the pixel values of two source
038:         * images on a per-band basis. In case the two source images have different
039:         * number of bands, the number of bands for the destination image is the
040:         * smaller band number of the two source images. That is
041:         * <code>dstNumBands = Math.min(src1NumBands, src2NumBands)</code>.
042:         * In case the two source images have different data types, the data type
043:         * for the destination image is the higher data type of the two source
044:         * images.
045:         *
046:         * <p>The value of the pixel (x, y) in the destination image is defined as:
047:         * <pre>
048:         * for (b = 0; b < numBands; b++) {
049:         *     dst[y][x][b] = src1[y][x][b] + src2[y][x][b];
050:         * }
051:         * </pre>
052:         *
053:         * <p>If the result of the addition overflows/underflows the
054:         * maximum/minimum value supported by the destination image, then it
055:         * will be clamped to the maximum/minimum value respectively. The
056:         * data type <code>byte</code> is treated as unsigned, with maximum
057:         * value as 255 and minimum value as 0.
058:         *
059:         * @see javax.media.jai.operator.AddDescriptor
060:         * @see AddCRIF
061:         *
062:         */
063:        final class AddOpImage extends PointOpImage {
064:
065:            /* Source 1 band increment */
066:            private int s1bd = 1;
067:
068:            /* Source 2 band increment */
069:            private int s2bd = 1;
070:
071:            /* Bilevel data flag. */
072:            private boolean areBinarySampleModels = false;
073:
074:            /**
075:             * Constructs an <code>AddOpImage</code>.
076:             *
077:             * <p>The <code>layout</code> parameter may optionally contains the
078:             * tile grid layout, sample model, and/or color model. The image
079:             * dimension is determined by the intersection of the bounding boxes
080:             * of the two source images.
081:             *
082:             * <p>The image layout of the first source image, <code>source1</code>,
083:             * is used as the fall-back for the image layout of the destination
084:             * image. Any layout parameters not specified in the <code>layout</code>
085:             * argument are set to the same value as that of <code>source1</code>.
086:             *
087:             * @param source1  The first source image.
088:             * @param source2  The second source image.
089:             * @param layout   The destination image layout.
090:             */
091:            public AddOpImage(RenderedImage source1, RenderedImage source2,
092:                    Map config, ImageLayout layout) {
093:                super (source1, source2, layout, config, true);
094:
095:                if (ImageUtil.isBinary(getSampleModel())
096:                        && ImageUtil.isBinary(source1.getSampleModel())
097:                        && ImageUtil.isBinary(source2.getSampleModel())) {
098:                    // Binary processing case: RasterAccessor
099:                    areBinarySampleModels = true;
100:                } else {
101:                    // Get the source band counts.
102:                    int numBands1 = source1.getSampleModel().getNumBands();
103:                    int numBands2 = source2.getSampleModel().getNumBands();
104:
105:                    // Handle the special case of adding a single band image to
106:                    // each band of a multi-band image.
107:                    int numBandsDst;
108:                    if (layout != null
109:                            && layout.isValid(ImageLayout.SAMPLE_MODEL_MASK)) {
110:                        SampleModel sm = layout.getSampleModel(null);
111:                        numBandsDst = sm.getNumBands();
112:
113:                        // One of the sources must be single-banded and the other must
114:                        // have at most the number of bands in the SampleModel hint.
115:                        if (numBandsDst > 1
116:                                && ((numBands1 == 1 && numBands2 > 1) || (numBands2 == 1 && numBands1 > 1))) {
117:                            // Clamp the destination band count to the number of
118:                            // bands in the multi-band source.
119:                            numBandsDst = Math.min(Math.max(numBands1,
120:                                    numBands2), numBandsDst);
121:
122:                            // Create a new SampleModel if necessary.
123:                            if (numBandsDst != sampleModel.getNumBands()) {
124:                                sampleModel = RasterFactory
125:                                        .createComponentSampleModel(sm,
126:                                                sampleModel.getTransferType(),
127:                                                sampleModel.getWidth(),
128:                                                sampleModel.getHeight(),
129:                                                numBandsDst);
130:
131:                                if (colorModel != null
132:                                        && !JDKWorkarounds
133:                                                .areCompatibleDataModels(
134:                                                        sampleModel, colorModel)) {
135:                                    colorModel = ImageUtil
136:                                            .getCompatibleColorModel(
137:                                                    sampleModel, config);
138:                                }
139:                            }
140:
141:                            // Set the source band increments.
142:                            s1bd = numBands1 == 1 ? 0 : 1;
143:                            s2bd = numBands2 == 1 ? 0 : 1;
144:                        }
145:                    }
146:                }
147:
148:                // Set flag to permit in-place operation.
149:                permitInPlaceOperation();
150:            }
151:
152:            /**
153:             * Adds the pixel values of two source images within a specified
154:             * rectangle.
155:             *
156:             * @param sources   Cobbled sources, guaranteed to provide all the
157:             *                  source data necessary for computing the rectangle.
158:             * @param dest      The tile containing the rectangle to be computed.
159:             * @param destRect  The rectangle within the tile to be computed.
160:             */
161:            protected void computeRect(Raster[] sources, WritableRaster dest,
162:                    Rectangle destRect) {
163:                if (areBinarySampleModels) {
164:                    // Retrieve format tags.
165:                    RasterFormatTag[] formatTags = getFormatTags();
166:
167:                    // For PointOpImage, srcRect = destRect.
168:                    RasterAccessor s1 = new RasterAccessor(sources[0],
169:                            destRect, formatTags[0], getSourceImage(0)
170:                                    .getColorModel());
171:                    RasterAccessor s2 = new RasterAccessor(sources[1],
172:                            destRect, formatTags[1], getSourceImage(1)
173:                                    .getColorModel());
174:                    RasterAccessor d = new RasterAccessor(dest, destRect,
175:                            formatTags[2], getColorModel());
176:
177:                    if (d.isBinary()) {
178:                        byte[] src1Bits = s1.getBinaryDataArray();
179:                        byte[] src2Bits = s2.getBinaryDataArray();
180:                        byte[] dstBits = d.getBinaryDataArray();
181:
182:                        int length = dstBits.length;
183:                        for (int i = 0; i < length; i++) {
184:                            // "Add" is equivalent to "Or" when 1+1 is clamped to 1.
185:                            dstBits[i] = (byte) (src1Bits[i] | src2Bits[i]);
186:                        }
187:
188:                        d.copyBinaryDataToRaster();
189:
190:                        return;
191:                    }
192:                }
193:
194:                // Retrieve format tags.
195:                RasterFormatTag[] formatTags = getFormatTags();
196:
197:                RasterAccessor s1 = new RasterAccessor(sources[0], destRect,
198:                        formatTags[0], getSourceImage(0).getColorModel());
199:                RasterAccessor s2 = new RasterAccessor(sources[1], destRect,
200:                        formatTags[1], getSourceImage(1).getColorModel());
201:                RasterAccessor d = new RasterAccessor(dest, destRect,
202:                        formatTags[2], getColorModel());
203:
204:                switch (d.getDataType()) {
205:                case DataBuffer.TYPE_BYTE:
206:                    computeRectByte(s1, s2, d);
207:                    break;
208:                case DataBuffer.TYPE_USHORT:
209:                    computeRectUShort(s1, s2, d);
210:                    break;
211:                case DataBuffer.TYPE_SHORT:
212:                    computeRectShort(s1, s2, d);
213:                    break;
214:                case DataBuffer.TYPE_INT:
215:                    computeRectInt(s1, s2, d);
216:                    break;
217:                case DataBuffer.TYPE_FLOAT:
218:                    computeRectFloat(s1, s2, d);
219:                    break;
220:                case DataBuffer.TYPE_DOUBLE:
221:                    computeRectDouble(s1, s2, d);
222:                    break;
223:                }
224:
225:                if (d.needsClamping()) {
226:                    d.clampDataArrays();
227:                }
228:                d.copyDataToRaster();
229:            }
230:
231:            private void computeRectByte(RasterAccessor src1,
232:                    RasterAccessor src2, RasterAccessor dst) {
233:                int s1LineStride = src1.getScanlineStride();
234:                int s1PixelStride = src1.getPixelStride();
235:                int[] s1BandOffsets = src1.getBandOffsets();
236:                byte[][] s1Data = src1.getByteDataArrays();
237:
238:                int s2LineStride = src2.getScanlineStride();
239:                int s2PixelStride = src2.getPixelStride();
240:                int[] s2BandOffsets = src2.getBandOffsets();
241:                byte[][] s2Data = src2.getByteDataArrays();
242:
243:                int dwidth = dst.getWidth();
244:                int dheight = dst.getHeight();
245:                int bands = dst.getNumBands();
246:                int dLineStride = dst.getScanlineStride();
247:                int dPixelStride = dst.getPixelStride();
248:                int[] dBandOffsets = dst.getBandOffsets();
249:                byte[][] dData = dst.getByteDataArrays();
250:
251:                for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
252:                    byte[] s1 = s1Data[s1b];
253:                    byte[] s2 = s2Data[s2b];
254:                    byte[] d = dData[b];
255:
256:                    int s1LineOffset = s1BandOffsets[s1b];
257:                    int s2LineOffset = s2BandOffsets[s2b];
258:                    int dLineOffset = dBandOffsets[b];
259:
260:                    for (int h = 0; h < dheight; h++) {
261:                        int s1PixelOffset = s1LineOffset;
262:                        int s2PixelOffset = s2LineOffset;
263:                        int dPixelOffset = dLineOffset;
264:
265:                        s1LineOffset += s1LineStride;
266:                        s2LineOffset += s2LineStride;
267:                        dLineOffset += dLineStride;
268:
269:                        int sum = 0;
270:                        for (int w = 0; w < dwidth; w++) {
271:                            //
272:                            // The next two lines are a fast way to do
273:                            // an add with saturation on U8 elements.
274:                            // It eliminates the need to do clamping.
275:                            //
276:                            sum = (s1[s1PixelOffset] & 0xFF)
277:                                    + (s2[s2PixelOffset] & 0xFF);
278:                            d[dPixelOffset] = (byte) ((((sum << 23) >> 31) | sum) & 0xFF);
279:
280:                            s1PixelOffset += s1PixelStride;
281:                            s2PixelOffset += s2PixelStride;
282:                            dPixelOffset += dPixelStride;
283:                        }
284:                    }
285:                }
286:            }
287:
288:            private void computeRectUShort(RasterAccessor src1,
289:                    RasterAccessor src2, RasterAccessor dst) {
290:                int s1LineStride = src1.getScanlineStride();
291:                int s1PixelStride = src1.getPixelStride();
292:                int[] s1BandOffsets = src1.getBandOffsets();
293:                short[][] s1Data = src1.getShortDataArrays();
294:
295:                int s2LineStride = src2.getScanlineStride();
296:                int s2PixelStride = src2.getPixelStride();
297:                int[] s2BandOffsets = src2.getBandOffsets();
298:                short[][] s2Data = src2.getShortDataArrays();
299:
300:                int dwidth = dst.getWidth();
301:                int dheight = dst.getHeight();
302:                int bands = dst.getNumBands();
303:                int dLineStride = dst.getScanlineStride();
304:                int dPixelStride = dst.getPixelStride();
305:                int[] dBandOffsets = dst.getBandOffsets();
306:                short[][] dData = dst.getShortDataArrays();
307:
308:                for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
309:                    short[] s1 = s1Data[s1b];
310:                    short[] s2 = s2Data[s2b];
311:                    short[] d = dData[b];
312:
313:                    int s1LineOffset = s1BandOffsets[s1b];
314:                    int s2LineOffset = s2BandOffsets[s2b];
315:                    int dLineOffset = dBandOffsets[b];
316:
317:                    for (int h = 0; h < dheight; h++) {
318:                        int s1PixelOffset = s1LineOffset;
319:                        int s2PixelOffset = s2LineOffset;
320:                        int dPixelOffset = dLineOffset;
321:
322:                        s1LineOffset += s1LineStride;
323:                        s2LineOffset += s2LineStride;
324:                        dLineOffset += dLineStride;
325:
326:                        for (int w = 0; w < dwidth; w++) {
327:                            d[dPixelOffset] = ImageUtil
328:                                    .clampUShortPositive((int) (s1[s1PixelOffset] & 0xFFFF)
329:                                            + (int) (s2[s2PixelOffset] & 0xFFFF));
330:
331:                            s1PixelOffset += s1PixelStride;
332:                            s2PixelOffset += s2PixelStride;
333:                            dPixelOffset += dPixelStride;
334:                        }
335:                    }
336:                }
337:            }
338:
339:            private void computeRectShort(RasterAccessor src1,
340:                    RasterAccessor src2, RasterAccessor dst) {
341:                int s1LineStride = src1.getScanlineStride();
342:                int s1PixelStride = src1.getPixelStride();
343:                int[] s1BandOffsets = src1.getBandOffsets();
344:                short[][] s1Data = src1.getShortDataArrays();
345:
346:                int s2LineStride = src2.getScanlineStride();
347:                int s2PixelStride = src2.getPixelStride();
348:                int[] s2BandOffsets = src2.getBandOffsets();
349:                short[][] s2Data = src2.getShortDataArrays();
350:
351:                int dwidth = dst.getWidth();
352:                int dheight = dst.getHeight();
353:                int bands = dst.getNumBands();
354:                int dLineStride = dst.getScanlineStride();
355:                int dPixelStride = dst.getPixelStride();
356:                int[] dBandOffsets = dst.getBandOffsets();
357:                short[][] dData = dst.getShortDataArrays();
358:
359:                for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
360:                    short[] s1 = s1Data[s1b];
361:                    short[] s2 = s2Data[s2b];
362:                    short[] d = dData[b];
363:
364:                    int s1LineOffset = s1BandOffsets[s1b];
365:                    int s2LineOffset = s2BandOffsets[s2b];
366:                    int dLineOffset = dBandOffsets[b];
367:
368:                    for (int h = 0; h < dheight; h++) {
369:                        int s1PixelOffset = s1LineOffset;
370:                        int s2PixelOffset = s2LineOffset;
371:                        int dPixelOffset = dLineOffset;
372:
373:                        s1LineOffset += s1LineStride;
374:                        s2LineOffset += s2LineStride;
375:                        dLineOffset += dLineStride;
376:
377:                        for (int w = 0; w < dwidth; w++) {
378:                            d[dPixelOffset] = ImageUtil
379:                                    .clampShort((int) s1[s1PixelOffset]
380:                                            + (int) s2[s2PixelOffset]);
381:
382:                            s1PixelOffset += s1PixelStride;
383:                            s2PixelOffset += s2PixelStride;
384:                            dPixelOffset += dPixelStride;
385:                        }
386:                    }
387:                }
388:            }
389:
390:            private void computeRectInt(RasterAccessor src1,
391:                    RasterAccessor src2, RasterAccessor dst) {
392:                int s1LineStride = src1.getScanlineStride();
393:                int s1PixelStride = src1.getPixelStride();
394:                int[] s1BandOffsets = src1.getBandOffsets();
395:                int[][] s1Data = src1.getIntDataArrays();
396:
397:                int s2LineStride = src2.getScanlineStride();
398:                int s2PixelStride = src2.getPixelStride();
399:                int[] s2BandOffsets = src2.getBandOffsets();
400:                int[][] s2Data = src2.getIntDataArrays();
401:
402:                int dwidth = dst.getWidth();
403:                int dheight = dst.getHeight();
404:                int bands = dst.getNumBands();
405:                int dLineStride = dst.getScanlineStride();
406:                int dPixelStride = dst.getPixelStride();
407:                int[] dBandOffsets = dst.getBandOffsets();
408:                int[][] dData = dst.getIntDataArrays();
409:
410:                /*
411:                 * The destination data type may be any of the integral data types.
412:                 * The "clamp" function must clamp to the appropriate range for
413:                 * that data type.
414:                 */
415:                switch (sampleModel.getTransferType()) {
416:                case DataBuffer.TYPE_BYTE:
417:                    for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
418:                        int[] s1 = s1Data[s1b];
419:                        int[] s2 = s2Data[s2b];
420:                        int[] d = dData[b];
421:
422:                        int s1LineOffset = s1BandOffsets[s1b];
423:                        int s2LineOffset = s2BandOffsets[s2b];
424:                        int dLineOffset = dBandOffsets[b];
425:
426:                        for (int h = 0; h < dheight; h++) {
427:                            int s1PixelOffset = s1LineOffset;
428:                            int s2PixelOffset = s2LineOffset;
429:                            int dPixelOffset = dLineOffset;
430:
431:                            s1LineOffset += s1LineStride;
432:                            s2LineOffset += s2LineStride;
433:                            dLineOffset += dLineStride;
434:
435:                            int sum = 0;
436:                            for (int w = 0; w < dwidth; w++) {
437:                                //
438:                                // The next two lines are a fast way to do
439:                                // an add with saturation on U8 elements.
440:                                // It eliminates the need to do clamping.
441:                                //
442:                                sum = (s1[s1PixelOffset] & 0xFF)
443:                                        + (s2[s2PixelOffset] & 0xFF);
444:                                d[dPixelOffset] = ((((sum << 23) >> 31) | sum) & 0xFF);
445:
446:                                s1PixelOffset += s1PixelStride;
447:                                s2PixelOffset += s2PixelStride;
448:                                dPixelOffset += dPixelStride;
449:                            }
450:                        }
451:                    }
452:                    break;
453:
454:                case DataBuffer.TYPE_USHORT:
455:                    for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
456:                        int[] s1 = s1Data[s1b];
457:                        int[] s2 = s2Data[s2b];
458:                        int[] d = dData[b];
459:
460:                        int s1LineOffset = s1BandOffsets[s1b];
461:                        int s2LineOffset = s2BandOffsets[s2b];
462:                        int dLineOffset = dBandOffsets[b];
463:
464:                        for (int h = 0; h < dheight; h++) {
465:                            int s1PixelOffset = s1LineOffset;
466:                            int s2PixelOffset = s2LineOffset;
467:                            int dPixelOffset = dLineOffset;
468:
469:                            s1LineOffset += s1LineStride;
470:                            s2LineOffset += s2LineStride;
471:                            dLineOffset += dLineStride;
472:
473:                            for (int w = 0; w < dwidth; w++) {
474:                                d[dPixelOffset] = ImageUtil
475:                                        .clampUShortPositive((int) (s1[s1PixelOffset] & 0xFFFF)
476:                                                + (int) (s2[s2PixelOffset] & 0xFFFF));
477:
478:                                s1PixelOffset += s1PixelStride;
479:                                s2PixelOffset += s2PixelStride;
480:                                dPixelOffset += dPixelStride;
481:                            }
482:                        }
483:                    }
484:                    break;
485:
486:                case DataBuffer.TYPE_SHORT:
487:                    for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
488:                        int[] s1 = s1Data[s1b];
489:                        int[] s2 = s2Data[s2b];
490:                        int[] d = dData[b];
491:
492:                        int s1LineOffset = s1BandOffsets[s1b];
493:                        int s2LineOffset = s2BandOffsets[s2b];
494:                        int dLineOffset = dBandOffsets[b];
495:
496:                        for (int h = 0; h < dheight; h++) {
497:                            int s1PixelOffset = s1LineOffset;
498:                            int s2PixelOffset = s2LineOffset;
499:                            int dPixelOffset = dLineOffset;
500:
501:                            s1LineOffset += s1LineStride;
502:                            s2LineOffset += s2LineStride;
503:                            dLineOffset += dLineStride;
504:
505:                            for (int w = 0; w < dwidth; w++) {
506:                                d[dPixelOffset] = ImageUtil
507:                                        .clampShort((int) s1[s1PixelOffset]
508:                                                + (int) s2[s2PixelOffset]);
509:
510:                                s1PixelOffset += s1PixelStride;
511:                                s2PixelOffset += s2PixelStride;
512:                                dPixelOffset += dPixelStride;
513:                            }
514:                        }
515:                    }
516:                    break;
517:
518:                case DataBuffer.TYPE_INT:
519:                    for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
520:                        int[] s1 = s1Data[s1b];
521:                        int[] s2 = s2Data[s2b];
522:                        int[] d = dData[b];
523:
524:                        int s1LineOffset = s1BandOffsets[s1b];
525:                        int s2LineOffset = s2BandOffsets[s2b];
526:                        int dLineOffset = dBandOffsets[b];
527:
528:                        for (int h = 0; h < dheight; h++) {
529:                            int s1PixelOffset = s1LineOffset;
530:                            int s2PixelOffset = s2LineOffset;
531:                            int dPixelOffset = dLineOffset;
532:
533:                            s1LineOffset += s1LineStride;
534:                            s2LineOffset += s2LineStride;
535:                            dLineOffset += dLineStride;
536:
537:                            for (int w = 0; w < dwidth; w++) {
538:                                d[dPixelOffset] = ImageUtil
539:                                        .clampInt((long) s1[s1PixelOffset]
540:                                                + (long) s2[s2PixelOffset]);
541:
542:                                s1PixelOffset += s1PixelStride;
543:                                s2PixelOffset += s2PixelStride;
544:                                dPixelOffset += dPixelStride;
545:                            }
546:                        }
547:                    }
548:                    break;
549:                }
550:            }
551:
552:            private void computeRectFloat(RasterAccessor src1,
553:                    RasterAccessor src2, RasterAccessor dst) {
554:                int s1LineStride = src1.getScanlineStride();
555:                int s1PixelStride = src1.getPixelStride();
556:                int[] s1BandOffsets = src1.getBandOffsets();
557:                float[][] s1Data = src1.getFloatDataArrays();
558:
559:                int s2LineStride = src2.getScanlineStride();
560:                int s2PixelStride = src2.getPixelStride();
561:                int[] s2BandOffsets = src2.getBandOffsets();
562:                float[][] s2Data = src2.getFloatDataArrays();
563:
564:                int dwidth = dst.getWidth();
565:                int dheight = dst.getHeight();
566:                int bands = dst.getNumBands();
567:                int dLineStride = dst.getScanlineStride();
568:                int dPixelStride = dst.getPixelStride();
569:                int[] dBandOffsets = dst.getBandOffsets();
570:                float[][] dData = dst.getFloatDataArrays();
571:
572:                for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
573:                    float[] s1 = s1Data[s1b];
574:                    float[] s2 = s2Data[s2b];
575:                    float[] d = dData[b];
576:
577:                    int s1LineOffset = s1BandOffsets[s1b];
578:                    int s2LineOffset = s2BandOffsets[s2b];
579:                    int dLineOffset = dBandOffsets[b];
580:
581:                    for (int h = 0; h < dheight; h++) {
582:                        int s1PixelOffset = s1LineOffset;
583:                        int s2PixelOffset = s2LineOffset;
584:                        int dPixelOffset = dLineOffset;
585:
586:                        s1LineOffset += s1LineStride;
587:                        s2LineOffset += s2LineStride;
588:                        dLineOffset += dLineStride;
589:
590:                        for (int w = 0; w < dwidth; w++) {
591:                            d[dPixelOffset] = s1[s1PixelOffset]
592:                                    + s2[s2PixelOffset];
593:
594:                            s1PixelOffset += s1PixelStride;
595:                            s2PixelOffset += s2PixelStride;
596:                            dPixelOffset += dPixelStride;
597:                        }
598:                    }
599:                }
600:            }
601:
602:            private void computeRectDouble(RasterAccessor src1,
603:                    RasterAccessor src2, RasterAccessor dst) {
604:                int s1LineStride = src1.getScanlineStride();
605:                int s1PixelStride = src1.getPixelStride();
606:                int[] s1BandOffsets = src1.getBandOffsets();
607:                double[][] s1Data = src1.getDoubleDataArrays();
608:
609:                int s2LineStride = src2.getScanlineStride();
610:                int s2PixelStride = src2.getPixelStride();
611:                int[] s2BandOffsets = src2.getBandOffsets();
612:                double[][] s2Data = src2.getDoubleDataArrays();
613:
614:                int dwidth = dst.getWidth();
615:                int dheight = dst.getHeight();
616:                int bands = dst.getNumBands();
617:                int dLineStride = dst.getScanlineStride();
618:                int dPixelStride = dst.getPixelStride();
619:                int[] dBandOffsets = dst.getBandOffsets();
620:                double[][] dData = dst.getDoubleDataArrays();
621:
622:                for (int b = 0, s1b = 0, s2b = 0; b < bands; b++, s1b += s1bd, s2b += s2bd) {
623:                    double[] s1 = s1Data[s1b];
624:                    double[] s2 = s2Data[s2b];
625:                    double[] d = dData[b];
626:
627:                    int s1LineOffset = s1BandOffsets[s1b];
628:                    int s2LineOffset = s2BandOffsets[s2b];
629:                    int dLineOffset = dBandOffsets[b];
630:
631:                    for (int h = 0; h < dheight; h++) {
632:                        int s1PixelOffset = s1LineOffset;
633:                        int s2PixelOffset = s2LineOffset;
634:                        int dPixelOffset = dLineOffset;
635:
636:                        s1LineOffset += s1LineStride;
637:                        s2LineOffset += s2LineStride;
638:                        dLineOffset += dLineStride;
639:
640:                        for (int w = 0; w < dwidth; w++) {
641:                            d[dPixelOffset] = s1[s1PixelOffset]
642:                                    + s2[s2PixelOffset];
643:
644:                            s1PixelOffset += s1PixelStride;
645:                            s2PixelOffset += s2PixelStride;
646:                            dPixelOffset += dPixelStride;
647:                        }
648:                    }
649:                }
650:            }
651:
652:            //     public static void main(String args[]) {
653:            //         System.out.println("AddOpImage Test");
654:            //         ImageLayout layout;
655:            //         OpImage src1, src2, dst;
656:            //         Rectangle rect = new Rectangle(0, 0, 5, 5);
657:
658:            //         System.out.println("1. PixelInterleaved byte 3-band");
659:            //         layout = OpImageTester.createImageLayout(
660:            //             0, 0, 800, 800, 0, 0, 200, 200, DataBuffer.TYPE_BYTE, 3, false);
661:            //         src1 = OpImageTester.createRandomOpImage(layout);
662:            //         src2 = OpImageTester.createRandomOpImage(layout);
663:            //         dst = new AddOpImage(src1, src2, null, null);
664:            //         OpImageTester.testOpImage(dst, rect);
665:            //         OpImageTester.timeOpImage(dst, 10);
666:
667:            //         System.out.println("2. Banded byte 3-band");
668:            //         layout = OpImageTester.createImageLayout(
669:            //            0, 0, 800, 800, 0, 0, 200, 200, DataBuffer.TYPE_BYTE, 3, true);
670:            //         src1 = OpImageTester.createRandomOpImage(layout);
671:            //         src2 = OpImageTester.createRandomOpImage(layout);
672:            //         dst = new AddOpImage(src1, src2, null, null);
673:            //         OpImageTester.testOpImage(dst, rect);
674:            //         OpImageTester.timeOpImage(dst, 10);
675:
676:            //         System.out.println("3. PixelInterleaved int 3-band");
677:            //         layout = OpImageTester.createImageLayout(
678:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_INT, 3, false);
679:            //         src1 = OpImageTester.createRandomOpImage(layout);
680:            //         src2 = OpImageTester.createRandomOpImage(layout);
681:            //         dst = new AddOpImage(src1, src2, null, null);
682:            //         OpImageTester.testOpImage(dst, rect);
683:            //         OpImageTester.timeOpImage(dst, 10);
684:
685:            //         System.out.println("4. Banded int 3-band");
686:            //         layout = OpImageTester.createImageLayout(
687:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_INT, 3, true);
688:            //         src1 = OpImageTester.createRandomOpImage(layout);
689:            //         src2 = OpImageTester.createRandomOpImage(layout);
690:            //         dst = new AddOpImage(src1, src2, null, null);
691:            //         OpImageTester.testOpImage(dst, rect);
692:            //         OpImageTester.timeOpImage(dst, 10);
693:
694:            //         System.out.println("5. PixelInterleaved float 3-band");
695:            //         layout = OpImageTester.createImageLayout(
696:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_FLOAT, 3, false);
697:            //         src1 = OpImageTester.createRandomOpImage(layout);
698:            //         src2 = OpImageTester.createRandomOpImage(layout);
699:            //         dst = new AddOpImage(src1, src2, null, null);
700:            //         OpImageTester.testOpImage(dst, rect);
701:            //         OpImageTester.timeOpImage(dst, 10);
702:
703:            //         System.out.println("6. Banded float 3-band");
704:            //         layout = OpImageTester.createImageLayout(
705:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_FLOAT, 3, true);
706:            //         src1 = OpImageTester.createRandomOpImage(layout);
707:            //         src2 = OpImageTester.createRandomOpImage(layout);
708:            //         dst = new AddOpImage(src1, src2, null, null);
709:            //         OpImageTester.testOpImage(dst, rect);
710:            //         OpImageTester.timeOpImage(dst, 10);
711:
712:            //         System.out.println("7. PixelInterleaved double 3-band");
713:            //         layout = OpImageTester.createImageLayout(
714:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_DOUBLE, 3, false);
715:            //         src1 = OpImageTester.createRandomOpImage(layout);
716:            //         src2 = OpImageTester.createRandomOpImage(layout);
717:            //         dst = new AddOpImage(src1, src2, null, null);
718:            //         OpImageTester.testOpImage(dst, rect);
719:            //         OpImageTester.timeOpImage(dst, 10);
720:
721:            //         System.out.println("8. Banded double 3-band");
722:            //         layout = OpImageTester.createImageLayout(
723:            //             0, 0, 512, 512, 0, 0, 200, 200, DataBuffer.TYPE_DOUBLE, 3, true);
724:            //         src1 = OpImageTester.createRandomOpImage(layout);
725:            //         src2 = OpImageTester.createRandomOpImage(layout);
726:            //         dst = new AddOpImage(src1, src2, null, null);
727:            //         OpImageTester.testOpImage(dst, rect);
728:            //         OpImageTester.timeOpImage(dst, 10);
729:            //     }
730:        }
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