List of usage examples for java.awt.image DataBufferByte getNumBanks
public int getNumBanks()
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 www . ja va2 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(); } }
From source file:org.apache.fop.render.pcl.PCLGenerator.java
/** * Paint a bitmap at the current cursor position. The bitmap must be a monochrome * (1-bit) bitmap image.//from ww w . j a v a 2 s. com * @param img the bitmap image (must be 1-bit b/w) * @param resolution the resolution of the image (must be a PCL resolution) * @throws IOException In case of an I/O error */ public void paintMonochromeBitmap(RenderedImage img, int resolution) throws IOException { if (!isValidPCLResolution(resolution)) { throw new IllegalArgumentException("Invalid PCL resolution: " + resolution); } boolean monochrome = isMonochromeImage(img); if (!monochrome) { throw new IllegalArgumentException("img must be a monochrome image"); } setRasterGraphicsResolution(resolution); writeCommand("*r0f" + img.getHeight() + "t" + img.getWidth() + "s1A"); Raster raster = img.getData(); Encoder encoder = new Encoder(img); // Transfer graphics data int imgw = img.getWidth(); IndexColorModel cm = (IndexColorModel) img.getColorModel(); if (cm.getTransferType() == DataBuffer.TYPE_BYTE) { DataBufferByte dataBuffer = (DataBufferByte) raster.getDataBuffer(); MultiPixelPackedSampleModel packedSampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE, img.getWidth(), img.getHeight(), 1); if (img.getSampleModel().equals(packedSampleModel) && dataBuffer.getNumBanks() == 1) { //Optimized packed encoding byte[] buf = dataBuffer.getData(); int scanlineStride = packedSampleModel.getScanlineStride(); int idx = 0; int c0 = toGray(cm.getRGB(0)); int c1 = toGray(cm.getRGB(1)); boolean zeroIsWhite = c0 > c1; for (int y = 0, maxy = img.getHeight(); y < maxy; y++) { for (int x = 0, maxx = scanlineStride; x < maxx; x++) { if (zeroIsWhite) { encoder.add8Bits(buf[idx]); } else { encoder.add8Bits((byte) ~buf[idx]); } idx++; } encoder.endLine(); } } else { //Optimized non-packed encoding for (int y = 0, maxy = img.getHeight(); y < maxy; y++) { byte[] line = (byte[]) raster.getDataElements(0, y, imgw, 1, null); for (int x = 0, maxx = imgw; x < maxx; x++) { encoder.addBit(line[x] == 0); } encoder.endLine(); } } } else { //Safe but slow fallback for (int y = 0, maxy = img.getHeight(); y < maxy; y++) { for (int x = 0, maxx = imgw; x < maxx; x++) { int sample = raster.getSample(x, y, 0); encoder.addBit(sample == 0); } encoder.endLine(); } } // End raster graphics writeCommand("*rB"); }