public static void main(String[] args) {
try {
// non-throwing message printer
Kdu_sysout_message sysout = new Kdu_sysout_message(false);
// exception-throwing message printer
Kdu_sysout_message syserr = new Kdu_sysout_message(true);
// non-throwing formatted printer
Kdu_message_formatter formattedSysout = new Kdu_message_formatter(sysout);
// throwing formatted printer
Kdu_message_formatter formattedSyserr = new Kdu_message_formatter(syserr);
Kdu_global.Kdu_customize_warnings(formattedSysout);
Kdu_global.Kdu_customize_errors(formattedSyserr);
} catch (KduException e) {
System.err.printf("Exception during Kdu stream tie: %s\n", e.getMessage());
}
if (args.length != 1) {
System.err.println("You must supply a filename (JP2, JPX or raw code-stream)");
System.exit(0);
}
final String filename = args[0];
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
Haikdu app = new Haikdu(filename);
}
});
}
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();
}
private static Kdu_coords getReferenceExpansion(
int reference_component, Kdu_channel_mapping channels, Kdu_codestream codestream)
throws KduException {
int c;
Kdu_coords ref_subs = new Kdu_coords();
Kdu_coords subs = new Kdu_coords();
codestream.Get_subsampling(reference_component, ref_subs);
Kdu_coords min_subs = new Kdu_coords();
min_subs.Assign(ref_subs);
for (c = 0; c < channels.Get_num_channels(); c++) {
codestream.Get_subsampling(channels.Get_source_component(c), subs);
if (subs.Get_x() < min_subs.Get_x()) min_subs.Set_x(subs.Get_x());
if (subs.Get_y() < min_subs.Get_y()) min_subs.Set_y(subs.Get_y());
}
Kdu_coords expansion = new Kdu_coords();
expansion.Set_x(ref_subs.Get_x() / min_subs.Get_x());
expansion.Set_y(ref_subs.Get_y() / min_subs.Get_y());
for (c = 0; c < channels.Get_num_channels(); c++) {
codestream.Get_subsampling(channels.Get_source_component(c), subs);
if ((((subs.Get_x() * expansion.Get_x()) % ref_subs.Get_x()) != 0)
|| (((subs.Get_y() * expansion.Get_y()) % ref_subs.Get_y()) != 0)) {
Kdu_global.Kdu_print_error(
"The supplied JP2 file contains color channels "
+ "whose sub-sampling factors are not integer "
+ "multiples of one another.");
codestream.Apply_input_restrictions(
0, 1, 0, 0, null, Kdu_global.KDU_WANT_OUTPUT_COMPONENTS);
channels.Configure(codestream);
expansion = new Kdu_coords(1, 1);
}
}
return expansion;
}