Source Code Cross Referenced for CopyOpImage.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: CopyOpImage.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 04:56:20 $
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.WritableRaster;
019:        import java.awt.image.renderable.ParameterBlock;
020:        import javax.media.jai.ImageLayout;
021:        import javax.media.jai.JAI;
022:        import javax.media.jai.PointOpImage;
023:        import javax.media.jai.OpImage;
024:        import javax.media.jai.RasterAccessor;
025:        import javax.media.jai.RasterFormatTag;
026:        import java.util.Hashtable;
027:        import java.util.Map;
028:
029:        // import com.sun.media.jai.test.OpImageTester;
030:
031:        /**
032:         * An OpImage class that copies an image from source to dest.
033:         *
034:         */
035:        public final class CopyOpImage extends PointOpImage {
036:
037:            /**
038:             * Constructs an CopyOpImage. The image dimensions are copied
039:             * from the source image.  The tile grid layout, SampleModel, and
040:             * ColorModel may optionally be specified by an ImageLayout object.
041:             *
042:             * @param source    a RenderedImage.
043:             * @param layout    an ImageLayout optionally containing the tile
044:             *                  grid layout, SampleModel, and ColorModel, or null.
045:             */
046:            public CopyOpImage(RenderedImage source, Map config,
047:                    ImageLayout layout) {
048:                super (source, layout, config, true);
049:            }
050:
051:            /**
052:             * Adds the pixel values of a rectangle with a given constant.
053:             * The sources are cobbled.
054:             *
055:             * @param sources   an array of sources, guarantee to provide all
056:             *                  necessary source data for computing the rectangle.
057:             * @param dest      a tile that contains the rectangle to be computed.
058:             * @param destRect  the rectangle within this OpImage to be processed.
059:             */
060:            protected void computeRect(Raster[] sources, WritableRaster dest,
061:                    Rectangle destRect) {
062:                // Retrieve format tags.
063:                RasterFormatTag[] formatTags = getFormatTags();
064:
065:                Raster source = sources[0];
066:                Rectangle srcRect = mapDestRect(destRect, 0);
067:
068:                RasterAccessor srcAccessor = new RasterAccessor(source,
069:                        srcRect, formatTags[0], getSourceImage(0)
070:                                .getColorModel());
071:
072:                RasterAccessor dstAccessor = new RasterAccessor(dest, destRect,
073:                        formatTags[1], getColorModel());
074:
075:                if (dstAccessor.isBinary()) {
076:                    byte[] srcBits = srcAccessor.getBinaryDataArray();
077:                    byte[] dstBits = dstAccessor.getBinaryDataArray();
078:
079:                    System.arraycopy(srcBits, 0, dstBits, 0, dstBits.length);
080:
081:                    dstAccessor.copyBinaryDataToRaster();
082:                } else {
083:                    switch (dstAccessor.getDataType()) {
084:                    case DataBuffer.TYPE_BYTE:
085:                        byteLoop(srcAccessor, dstAccessor);
086:                        break;
087:                    case DataBuffer.TYPE_SHORT:
088:                    case DataBuffer.TYPE_USHORT:
089:                        shortLoop(srcAccessor, dstAccessor);
090:                        break;
091:                    case DataBuffer.TYPE_INT:
092:                        intLoop(srcAccessor, dstAccessor);
093:                        break;
094:                    case DataBuffer.TYPE_FLOAT:
095:                        floatLoop(srcAccessor, dstAccessor);
096:                        break;
097:                    case DataBuffer.TYPE_DOUBLE:
098:                        doubleLoop(srcAccessor, dstAccessor);
099:                        break;
100:                    default:
101:                        String className = this .getClass().getName();
102:                        throw new RuntimeException(JaiI18N
103:                                .getString("Convolve3x3OpImage1"));
104:                    }
105:
106:                    // If the RasterAccessor object set up a temporary buffer for the 
107:                    // op to write to, tell the RasterAccessor to write that data
108:                    // to the raster no that we're done with it.
109:                    if (dstAccessor.isDataCopy()) {
110:                        dstAccessor.clampDataArrays();
111:                        dstAccessor.copyDataToRaster();
112:                    }
113:                }
114:            }
115:
116:            private void byteLoop(RasterAccessor src, RasterAccessor dst) {
117:                int dwidth = dst.getWidth();
118:                int dheight = dst.getHeight();
119:                int dnumBands = dst.getNumBands();
120:
121:                byte dstDataArrays[][] = dst.getByteDataArrays();
122:                int dstBandOffsets[] = dst.getBandOffsets();
123:                int dstPixelStride = dst.getPixelStride();
124:                int dstScanlineStride = dst.getScanlineStride();
125:
126:                byte srcDataArrays[][] = src.getByteDataArrays();
127:                int srcBandOffsets[] = src.getBandOffsets();
128:                int srcPixelStride = src.getPixelStride();
129:                int srcScanlineStride = src.getScanlineStride();
130:
131:                for (int k = 0; k < dnumBands; k++) {
132:                    byte dstData[] = dstDataArrays[k];
133:                    byte srcData[] = srcDataArrays[k];
134:                    int srcScanlineOffset = srcBandOffsets[k];
135:                    int dstScanlineOffset = dstBandOffsets[k];
136:                    for (int j = 0; j < dheight; j++) {
137:                        int srcPixelOffset = srcScanlineOffset;
138:                        int dstPixelOffset = dstScanlineOffset;
139:                        for (int i = 0; i < dwidth; i++) {
140:                            dstData[dstPixelOffset] = srcData[srcPixelOffset];
141:                            srcPixelOffset += srcPixelStride;
142:                            dstPixelOffset += dstPixelStride;
143:                        }
144:                        srcScanlineOffset += srcScanlineStride;
145:                        dstScanlineOffset += dstScanlineStride;
146:                    }
147:                }
148:            }
149:
150:            private void shortLoop(RasterAccessor src, RasterAccessor dst) {
151:                int dwidth = dst.getWidth();
152:                int dheight = dst.getHeight();
153:                int dnumBands = dst.getNumBands();
154:
155:                short dstDataArrays[][] = dst.getShortDataArrays();
156:                int dstBandOffsets[] = dst.getBandOffsets();
157:                int dstPixelStride = dst.getPixelStride();
158:                int dstScanlineStride = dst.getScanlineStride();
159:
160:                short srcDataArrays[][] = src.getShortDataArrays();
161:                int srcBandOffsets[] = src.getBandOffsets();
162:                int srcPixelStride = src.getPixelStride();
163:                int srcScanlineStride = src.getScanlineStride();
164:
165:                for (int k = 0; k < dnumBands; k++) {
166:                    short dstData[] = dstDataArrays[k];
167:                    short srcData[] = srcDataArrays[k];
168:                    int srcScanlineOffset = srcBandOffsets[k];
169:                    int dstScanlineOffset = dstBandOffsets[k];
170:                    for (int j = 0; j < dheight; j++) {
171:                        int srcPixelOffset = srcScanlineOffset;
172:                        int dstPixelOffset = dstScanlineOffset;
173:                        for (int i = 0; i < dwidth; i++) {
174:                            dstData[dstPixelOffset] = srcData[srcPixelOffset];
175:                            srcPixelOffset += srcPixelStride;
176:                            dstPixelOffset += dstPixelStride;
177:                        }
178:                        srcScanlineOffset += srcScanlineStride;
179:                        dstScanlineOffset += dstScanlineStride;
180:                    }
181:                }
182:            }
183:
184:            // identical to byteLoops, except datatypes have changed.  clumsy,
185:            // but there's no other way in Java
186:            private void intLoop(RasterAccessor src, RasterAccessor dst) {
187:                int dwidth = dst.getWidth();
188:                int dheight = dst.getHeight();
189:                int dnumBands = dst.getNumBands();
190:
191:                int dstDataArrays[][] = dst.getIntDataArrays();
192:                int dstBandOffsets[] = dst.getBandOffsets();
193:                int dstPixelStride = dst.getPixelStride();
194:                int dstScanlineStride = dst.getScanlineStride();
195:
196:                int srcDataArrays[][] = src.getIntDataArrays();
197:                int srcBandOffsets[] = src.getBandOffsets();
198:                int srcPixelStride = src.getPixelStride();
199:                int srcScanlineStride = src.getScanlineStride();
200:
201:                for (int k = 0; k < dnumBands; k++) {
202:                    int dstData[] = dstDataArrays[k];
203:                    int srcData[] = srcDataArrays[k];
204:                    int srcScanlineOffset = srcBandOffsets[k];
205:                    int dstScanlineOffset = dstBandOffsets[k];
206:                    for (int j = 0; j < dheight; j++) {
207:                        int srcPixelOffset = srcScanlineOffset;
208:                        int dstPixelOffset = dstScanlineOffset;
209:                        for (int i = 0; i < dwidth; i++) {
210:                            dstData[dstPixelOffset] = srcData[srcPixelOffset];
211:                            srcPixelOffset += srcPixelStride;
212:                            dstPixelOffset += dstPixelStride;
213:                        }
214:                        srcScanlineOffset += srcScanlineStride;
215:                        dstScanlineOffset += dstScanlineStride;
216:                    }
217:                }
218:            }
219:
220:            private void floatLoop(RasterAccessor src, RasterAccessor dst) {
221:                int dwidth = dst.getWidth();
222:                int dheight = dst.getHeight();
223:                int dnumBands = dst.getNumBands();
224:
225:                float dstDataArrays[][] = dst.getFloatDataArrays();
226:                int dstBandOffsets[] = dst.getBandOffsets();
227:                int dstPixelStride = dst.getPixelStride();
228:                int dstScanlineStride = dst.getScanlineStride();
229:
230:                float srcDataArrays[][] = src.getFloatDataArrays();
231:                int srcBandOffsets[] = src.getBandOffsets();
232:                int srcPixelStride = src.getPixelStride();
233:                int srcScanlineStride = src.getScanlineStride();
234:
235:                for (int k = 0; k < dnumBands; k++) {
236:                    float dstData[] = dstDataArrays[k];
237:                    float srcData[] = srcDataArrays[k];
238:                    int srcScanlineOffset = srcBandOffsets[k];
239:                    int dstScanlineOffset = dstBandOffsets[k];
240:                    for (int j = 0; j < dheight; j++) {
241:                        int srcPixelOffset = srcScanlineOffset;
242:                        int dstPixelOffset = dstScanlineOffset;
243:                        for (int i = 0; i < dwidth; i++) {
244:                            dstData[dstPixelOffset] = srcData[srcPixelOffset];
245:                            srcPixelOffset += srcPixelStride;
246:                            dstPixelOffset += dstPixelStride;
247:                        }
248:                        srcScanlineOffset += srcScanlineStride;
249:                        dstScanlineOffset += dstScanlineStride;
250:                    }
251:                }
252:            }
253:
254:            private void doubleLoop(RasterAccessor src, RasterAccessor dst) {
255:                int dwidth = dst.getWidth();
256:                int dheight = dst.getHeight();
257:                int dnumBands = dst.getNumBands();
258:
259:                double dstDataArrays[][] = dst.getDoubleDataArrays();
260:                int dstBandOffsets[] = dst.getBandOffsets();
261:                int dstPixelStride = dst.getPixelStride();
262:                int dstScanlineStride = dst.getScanlineStride();
263:
264:                double srcDataArrays[][] = src.getDoubleDataArrays();
265:                int srcBandOffsets[] = src.getBandOffsets();
266:                int srcPixelStride = src.getPixelStride();
267:                int srcScanlineStride = src.getScanlineStride();
268:
269:                for (int k = 0; k < dnumBands; k++) {
270:                    double dstData[] = dstDataArrays[k];
271:                    double srcData[] = srcDataArrays[k];
272:                    int srcScanlineOffset = srcBandOffsets[k];
273:                    int dstScanlineOffset = dstBandOffsets[k];
274:                    for (int j = 0; j < dheight; j++) {
275:                        int srcPixelOffset = srcScanlineOffset;
276:                        int dstPixelOffset = dstScanlineOffset;
277:                        for (int i = 0; i < dwidth; i++) {
278:                            dstData[dstPixelOffset] = srcData[srcPixelOffset];
279:                            srcPixelOffset += srcPixelStride;
280:                            dstPixelOffset += dstPixelStride;
281:                        }
282:                        srcScanlineOffset += srcScanlineStride;
283:                        dstScanlineOffset += dstScanlineStride;
284:                    }
285:                }
286:            }
287:
288:            //     public static OpImage createTestImage(OpImageTester oit) {
289:            //         return new CopyOpImage(oit.getSource(), null,
290:            //                                new ImageLayout(oit.getSource()));
291:            //     }
292:
293:            //     // Calls a method on OpImage that uses introspection, to make this
294:            //     // class, discover it's createTestImage() call, call it and then
295:            //     // benchmark the performance of the created OpImage chain.
296:            //     public static void main(String args[]) {
297:            //         String classname = "com.sun.media.jai.opimage.CopyOpImage";
298:            //         OpImageTester.performDiagnostics(classname,args);
299:            //     }
300:        }
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