List of usage examples for java.awt.image DataBufferByte getData
public byte[] getData(int bank)
From source file:GraphicsUtil.java
/** * Creates a new raster that has a <b>copy</b> of the data in * <tt>ras</tt>. This is highly optimized for speed. There is * no provision for changing any aspect of the SampleModel. * However you can specify a new location for the returned raster. * * This method should be used when you need to change the contents * of a Raster that you do not "own" (ie the result of a * <tt>getData</tt> call)./*from w w w . j a v a 2 s . co m*/ * * @param ras The Raster to copy. * * @param minX The x location for the upper left corner of the * returned WritableRaster. * * @param minY The y location for the upper left corner of the * returned WritableRaster. * * @return A writable copy of <tt>ras</tt> */ public static WritableRaster copyRaster(Raster ras, int minX, int minY) { WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0)); ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(), ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null); // Use System.arraycopy to copy the data between the two... DataBuffer srcDB = ras.getDataBuffer(); DataBuffer retDB = ret.getDataBuffer(); if (srcDB.getDataType() != retDB.getDataType()) { throw new IllegalArgumentException("New DataBuffer doesn't match original"); } int len = srcDB.getSize(); int banks = srcDB.getNumBanks(); int[] offsets = srcDB.getOffsets(); for (int b = 0; b < banks; b++) { switch (srcDB.getDataType()) { case DataBuffer.TYPE_BYTE: { DataBufferByte srcDBT = (DataBufferByte) srcDB; DataBufferByte retDBT = (DataBufferByte) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_INT: { DataBufferInt srcDBT = (DataBufferInt) srcDB; DataBufferInt retDBT = (DataBufferInt) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_SHORT: { DataBufferShort srcDBT = (DataBufferShort) srcDB; DataBufferShort retDBT = (DataBufferShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } case DataBuffer.TYPE_USHORT: { DataBufferUShort srcDBT = (DataBufferUShort) srcDB; DataBufferUShort retDBT = (DataBufferUShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); } } } return ret; }
From source file:GraphicsUtil.java
/** * Creates a new raster that has a <b>copy</b> of the data in * <tt>ras</tt>. This is highly optimized for speed. There is * no provision for changing any aspect of the SampleModel. * However you can specify a new location for the returned raster. * * This method should be used when you need to change the contents * of a Raster that you do not "own" (ie the result of a * <tt>getData</tt> call)./* w ww. ja va 2s . co m*/ * * @param ras The Raster to copy. * * @param minX The x location for the upper left corner of the * returned WritableRaster. * * @param minY The y location for the upper left corner of the * returned WritableRaster. * * @return A writable copy of <tt>ras</tt> */ public static WritableRaster copyRaster(Raster ras, int minX, int minY) { WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0)); ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(), ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null); // Use System.arraycopy to copy the data between the two... DataBuffer srcDB = ras.getDataBuffer(); DataBuffer retDB = ret.getDataBuffer(); if (srcDB.getDataType() != retDB.getDataType()) { throw new IllegalArgumentException("New DataBuffer doesn't match original"); } int len = srcDB.getSize(); int banks = srcDB.getNumBanks(); int[] offsets = srcDB.getOffsets(); for (int b = 0; b < banks; b++) { switch (srcDB.getDataType()) { case DataBuffer.TYPE_BYTE: { DataBufferByte srcDBT = (DataBufferByte) srcDB; DataBufferByte retDBT = (DataBufferByte) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_INT: { DataBufferInt srcDBT = (DataBufferInt) srcDB; DataBufferInt retDBT = (DataBufferInt) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_SHORT: { DataBufferShort srcDBT = (DataBufferShort) srcDB; DataBufferShort retDBT = (DataBufferShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } case DataBuffer.TYPE_USHORT: { DataBufferUShort srcDBT = (DataBufferUShort) srcDB; DataBufferUShort retDBT = (DataBufferUShort) retDB; System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len); break; } } } return ret; }
From source file:com.occamlab.te.parsers.ImageParser.java
private static void processBufferedImage(BufferedImage buffimage, String formatName, NodeList nodes) throws Exception { HashMap<Object, Object> bandMap = new HashMap<Object, Object>(); for (int i = 0; i < nodes.getLength(); i++) { Node node = nodes.item(i); if (node.getNodeType() == Node.ELEMENT_NODE) { if (node.getLocalName().equals("subimage")) { Element e = (Element) node; int x = Integer.parseInt(e.getAttribute("x")); int y = Integer.parseInt(e.getAttribute("y")); int w = Integer.parseInt(e.getAttribute("width")); int h = Integer.parseInt(e.getAttribute("height")); processBufferedImage(buffimage.getSubimage(x, y, w, h), formatName, e.getChildNodes()); } else if (node.getLocalName().equals("checksum")) { CRC32 checksum = new CRC32(); Raster raster = buffimage.getRaster(); DataBufferByte buffer; if (node.getParentNode().getLocalName().equals("subimage")) { WritableRaster outRaster = raster.createCompatibleWritableRaster(); buffimage.copyData(outRaster); buffer = (DataBufferByte) outRaster.getDataBuffer(); } else { buffer = (DataBufferByte) raster.getDataBuffer(); }//from ww w . ja v a2 s . c om int numbanks = buffer.getNumBanks(); for (int j = 0; j < numbanks; j++) { checksum.update(buffer.getData(j)); } Document doc = node.getOwnerDocument(); node.appendChild(doc.createTextNode(Long.toString(checksum.getValue()))); } else if (node.getLocalName().equals("count")) { String band = ((Element) node).getAttribute("bands"); String sample = ((Element) node).getAttribute("sample"); if (sample.equals("all")) { bandMap.put(band, null); } else { HashMap<Object, Object> sampleMap = (HashMap<Object, Object>) bandMap.get(band); if (sampleMap == null) { if (!bandMap.containsKey(band)) { sampleMap = new HashMap<Object, Object>(); bandMap.put(band, sampleMap); } } sampleMap.put(Integer.decode(sample), new Integer(0)); } } else if (node.getLocalName().equals("transparentNodata")) { // 2011-08-24 // PwD String transparentNodata = checkTransparentNodata(buffimage, node); node.setTextContent(transparentNodata); } } } Iterator bandIt = bandMap.keySet().iterator(); while (bandIt.hasNext()) { String band_str = (String) bandIt.next(); int band_indexes[]; if (buffimage.getType() == BufferedImage.TYPE_BYTE_BINARY || buffimage.getType() == BufferedImage.TYPE_BYTE_GRAY) { band_indexes = new int[1]; band_indexes[0] = 0; } else { band_indexes = new int[band_str.length()]; for (int i = 0; i < band_str.length(); i++) { if (band_str.charAt(i) == 'A') band_indexes[i] = 3; if (band_str.charAt(i) == 'B') band_indexes[i] = 2; if (band_str.charAt(i) == 'G') band_indexes[i] = 1; if (band_str.charAt(i) == 'R') band_indexes[i] = 0; } } Raster raster = buffimage.getRaster(); java.util.HashMap sampleMap = (java.util.HashMap) bandMap.get(band_str); boolean addall = (sampleMap == null); if (sampleMap == null) { sampleMap = new java.util.HashMap(); bandMap.put(band_str, sampleMap); } int minx = raster.getMinX(); int maxx = minx + raster.getWidth(); int miny = raster.getMinY(); int maxy = miny + raster.getHeight(); int bands[][] = new int[band_indexes.length][raster.getWidth()]; for (int y = miny; y < maxy; y++) { for (int i = 0; i < band_indexes.length; i++) { raster.getSamples(minx, y, maxx, 1, band_indexes[i], bands[i]); } for (int x = minx; x < maxx; x++) { int sample = 0; for (int i = 0; i < band_indexes.length; i++) { sample |= bands[i][x] << ((band_indexes.length - i - 1) * 8); } Integer sampleObj = new Integer(sample); boolean add = addall; if (!addall) { add = sampleMap.containsKey(sampleObj); } if (add) { Integer count = (Integer) sampleMap.get(sampleObj); if (count == null) { count = new Integer(0); } count = new Integer(count.intValue() + 1); sampleMap.put(sampleObj, count); } } } } Node node = nodes.item(0); while (node != null) { if (node.getNodeType() == Node.ELEMENT_NODE) { if (node.getLocalName().equals("count")) { String band = ((Element) node).getAttribute("bands"); String sample = ((Element) node).getAttribute("sample"); HashMap sampleMap = (HashMap) bandMap.get(band); Document doc = node.getOwnerDocument(); if (sample.equals("all")) { Node parent = node.getParentNode(); Node prevSibling = node.getPreviousSibling(); Iterator sampleIt = sampleMap.keySet().iterator(); Element countnode = null; int digits; String prefix; switch (buffimage.getType()) { case BufferedImage.TYPE_BYTE_BINARY: digits = 1; prefix = ""; break; case BufferedImage.TYPE_BYTE_GRAY: digits = 2; prefix = "0x"; break; default: prefix = "0x"; digits = band.length() * 2; } while (sampleIt.hasNext()) { countnode = doc.createElementNS(node.getNamespaceURI(), "count"); Integer sampleInt = (Integer) sampleIt.next(); Integer count = (Integer) sampleMap.get(sampleInt); if (band.length() > 0) { countnode.setAttribute("bands", band); } countnode.setAttribute("sample", prefix + HexString(sampleInt.intValue(), digits)); Node textnode = doc.createTextNode(count.toString()); countnode.appendChild(textnode); parent.insertBefore(countnode, node); if (sampleIt.hasNext()) { if (prevSibling != null && prevSibling.getNodeType() == Node.TEXT_NODE) { parent.insertBefore(prevSibling.cloneNode(false), node); } } } parent.removeChild(node); node = countnode; } else { Integer count = (Integer) sampleMap.get(Integer.decode(sample)); if (count == null) count = new Integer(0); Node textnode = doc.createTextNode(count.toString()); node.appendChild(textnode); } } } node = node.getNextSibling(); } }