public Haikdu(String filename) { try { familySource.Open(filename); int success = wrappedSource.Open(familySource, true); if (success < 0) { familySource.Close(); wrappedSource.Close(); rawSource = new Kdu_simple_file_source(filename); } if (rawSource != null) compositor.Create(rawSource); else compositor.Create(wrappedSource); int numThreads = Kdu_global.Kdu_get_num_processors(); threadEnv.Create(); for (int thread = 1; thread < numThreads; thread++) if (!threadEnv.Add_thread()) numThreads = thread; compositor.Set_thread_env(threadEnv, null); compositor.Add_ilayer(0, new Kdu_dims(), new Kdu_dims()); compositor.Set_scale(false, false, false, 0.050f); // Determine dimensions for the rendered result and start processing. compositor.Get_total_composition_dims(viewDims); viewSize = viewDims.Access_size(); // Construct Swing frame imagePanel = new ImagePanel(viewSize); addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); getContentPane().add("Center", imagePanel); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pack(); setTitle("Haikdu"); setVisible(true); repaint(); Kdu_coords displaySize = new Kdu_coords(imagePanel.getWidth(), imagePanel.getHeight()); if (viewSize.Get_x() > displaySize.Get_x()) viewSize.Set_x(displaySize.Get_y()); if (viewSize.Get_y() > displaySize.Get_y()) viewSize.Set_y(displaySize.Get_y()); compositor.Set_buffer_surface(viewDims); compositorBuffer = compositor.Get_composition_buffer(viewDims); } catch (KduException e) { System.err.printf("Caught exception during Kdu object construction: %s\n", e.getMessage()); } render(); }
public void cleanup() { try { if (compositor != null) compositor.Native_destroy(); threadEnv.Destroy(); threadEnv.Native_destroy(); wrappedSource.Native_destroy(); familySource.Native_destroy(); if (rawSource != null) rawSource.Native_destroy(); } catch (KduException e) { System.err.printf("Exception on Kdu object cleanup: %s\n", e.getMessage()); } }
public BufferedImage extractUsingCompositor() throws IOException, DjatokaException { boolean useRegion = false; int left = 0; int top = 0; int width = 50; int height = 50; boolean useleftDouble = false; Double leftDouble = 0.0; boolean usetopDouble = false; Double topDouble = 0.0; boolean usewidthDouble = false; Double widthDouble = 0.0; boolean useheightDouble = false; Double heightDouble = 0.0; if (params.getRegion() != null) { StringTokenizer st = new StringTokenizer(params.getRegion(), "{},"); String token; // top if ((token = st.nextToken()).contains(".")) { topDouble = Double.parseDouble(token); usetopDouble = true; } else top = Integer.parseInt(token); // left if ((token = st.nextToken()).contains(".")) { leftDouble = Double.parseDouble(token); useleftDouble = true; } else left = Integer.parseInt(token); // height if ((token = st.nextToken()).contains(".")) { heightDouble = Double.parseDouble(token); useheightDouble = true; } else height = Integer.parseInt(token); // width if ((token = st.nextToken()).contains(".")) { widthDouble = Double.parseDouble(token); usewidthDouble = true; } else width = Integer.parseInt(token); useRegion = true; } if (is != null) { File f = File.createTempFile("tmp", ".jp2"); f.deleteOnExit(); FileOutputStream fos = new FileOutputStream(f); sourceFile = f.getAbsolutePath(); IOUtils.copyStream(is, fos); } Kdu_simple_file_source raw_src = null; // Must be disposed last Jp2_family_src family_src = new Jp2_family_src(); // Dispose last Jpx_source wrapped_src = new Jpx_source(); // Dispose in the middle Kdu_region_compositor compositor = null; // Must be disposed first BufferedImage image = null; try { family_src.Open(sourceFile); int success = wrapped_src.Open(family_src, true); if (success < 0) { family_src.Close(); wrapped_src.Close(); raw_src = new Kdu_simple_file_source(sourceFile); } compositor = new Kdu_region_compositor(); if (raw_src != null) compositor.Create(raw_src); else compositor.Create(wrapped_src); Kdu_dims imageDimensions = new Kdu_dims(); compositor.Get_total_composition_dims(imageDimensions); Kdu_coords imageSize = imageDimensions.Access_size(); Kdu_coords imagePosition = imageDimensions.Access_pos(); if (useleftDouble) left = imagePosition.Get_x() + (int) Math.round(leftDouble * imageSize.Get_x()); if (usetopDouble) top = imagePosition.Get_y() + (int) Math.round(topDouble * imageSize.Get_y()); if (useheightDouble) height = (int) Math.round(heightDouble * imageSize.Get_y()); if (usewidthDouble) width = (int) Math.round(widthDouble * imageSize.Get_x()); if (useRegion) { imageSize.Set_x(width); imageSize.Set_y(height); imagePosition.Set_x(left); imagePosition.Set_y(top); } int reduce = 1 << params.getLevelReductionFactor(); imageSize.Set_x(imageSize.Get_x()); imageSize.Set_y(imageSize.Get_y()); imagePosition.Set_x(imagePosition.Get_x() / reduce - (1 / reduce - 1) / 2); imagePosition.Set_y(imagePosition.Get_y() / reduce - (1 / reduce - 1) / 2); Kdu_dims viewDims = new Kdu_dims(); viewDims.Assign(imageDimensions); viewDims.Access_size().Set_x(imageSize.Get_x()); viewDims.Access_size().Set_y(imageSize.Get_y()); compositor.Add_compositing_layer(0, viewDims, viewDims); if (params.getRotationDegree() == 90) compositor.Set_scale(true, false, true, 1.0F); else if (params.getRotationDegree() == 180) compositor.Set_scale(false, true, true, 1.0F); else if (params.getRotationDegree() == 270) compositor.Set_scale(true, true, false, 1.0F); else compositor.Set_scale(false, false, false, 1.0F); compositor.Get_total_composition_dims(viewDims); Kdu_coords viewSize = viewDims.Access_size(); compositor.Set_buffer_surface(viewDims); int[] imgBuffer = new int[viewSize.Get_x() * viewSize.Get_y()]; Kdu_compositor_buf compositorBuffer = compositor.Get_composition_buffer(viewDims); int regionBufferSize = 0; int[] kduBuffer = null; Kdu_dims newRegion = new Kdu_dims(); while (compositor.Process(100000, newRegion)) { Kdu_coords newOffset = newRegion.Access_pos(); Kdu_coords newSize = newRegion.Access_size(); newOffset.Subtract(viewDims.Access_pos()); int newPixels = newSize.Get_x() * newSize.Get_y(); if (newPixels == 0) continue; if (newPixels > regionBufferSize) { regionBufferSize = newPixels; kduBuffer = new int[regionBufferSize]; } compositorBuffer.Get_region(newRegion, kduBuffer); int imgBuffereIdx = newOffset.Get_x() + newOffset.Get_y() * viewSize.Get_x(); int kduBufferIdx = 0; int xDiff = viewSize.Get_x() - newSize.Get_x(); for (int j = 0; j < newSize.Get_y(); j++, imgBuffereIdx += xDiff) { for (int i = 0; i < newSize.Get_x(); i++) { imgBuffer[imgBuffereIdx++] = kduBuffer[kduBufferIdx++]; } } } if (params.getRotationDegree() == 90 || params.getRotationDegree() == 270) image = new BufferedImage(imageSize.Get_y(), imageSize.Get_x(), BufferedImage.TYPE_INT_RGB); else image = new BufferedImage(imageSize.Get_x(), imageSize.Get_y(), BufferedImage.TYPE_INT_RGB); image.setRGB(0, 0, viewSize.Get_x(), viewSize.Get_y(), imgBuffer, 0, viewSize.Get_x()); if (compositor != null) compositor.Native_destroy(); wrapped_src.Native_destroy(); family_src.Native_destroy(); if (raw_src != null) raw_src.Native_destroy(); return image; } catch (KduException e) { e.printStackTrace(); throw new DjatokaException(e); } catch (Exception e) { e.printStackTrace(); throw new DjatokaException(e); } }