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+/* DSSIMidiDeviceProvider.java -- DSSI Device Provider
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.sound.midi.dssi;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.io.File;
+import java.io.FilenameFilter;
+
+import gnu.classpath.Configuration;
+import gnu.javax.sound.midi.alsa.AlsaMidiSequencerDevice;
+
+import javax.sound.midi.MidiDevice;
+import javax.sound.midi.MidiDevice.Info;
+import javax.sound.midi.spi.MidiDeviceProvider;
+
+/**
+ * A DSSI MIDI device provider.
+ *
+ * DSSI (pronounced "dizzy") is an API for audio plugins, with particular
+ * application for software synthesis plugins with native user interfaces.
+ *
+ * Read about DSSI at http://dssi.sourceforge.net
+ *
+ * @author Anthony Green (green@redhat.com)
+ *
+ */
+public class DSSIMidiDeviceProvider extends MidiDeviceProvider
+{
+ /**
+ * The MidiDevice.Info specialized for DSSI synthesizers.
+ *
+ * @author Anthony Green (green@redhat.com)
+ *
+ */
+ private static class DSSIInfo extends Info
+ {
+ String soname;
+ long index;
+
+ public DSSIInfo(String name, String vendor, String description,
+ String version, String soname, long index)
+ {
+ super(name, vendor, description, version);
+ this.soname = soname;
+ this.index = index;
+ }
+ }
+
+ static native long dlopen_(String soname);
+ static native void dlclose_(long sohandle);
+ static native long getDSSIHandle_(long sohandle, long index);
+ static native String getDSSIName_(long handle);
+ static native String getDSSICopyright_(long handle);
+ static native String getDSSIVendor_(long handle);
+ static native String getDSSILabel_(long handle);
+
+ private static List examineLibrary(String soname)
+ {
+ List list = new ArrayList();
+ long index = 0;
+ long handle;
+
+ long sohandle = dlopen_(soname);
+ if (sohandle == 0)
+ return list;
+ do
+ {
+ handle = getDSSIHandle_(sohandle, index);
+ if (handle == 0)
+ break;
+ String name = getDSSILabel_(handle);
+ String copyright = getDSSICopyright_(handle);
+ String label = getDSSIName_(handle);
+ String vendor = getDSSIVendor_(handle);
+ list.add(new DSSIInfo(name, vendor, label,
+ "DSSI-1", soname, index));
+ index++;
+ } while (true);
+
+ // Close the library and free memory
+ dlclose_(sohandle);
+
+ return list;
+ }
+
+ private static DSSIInfo[] infos;
+
+ static
+ {
+ if (Configuration.INIT_LOAD_LIBRARY)
+ System.loadLibrary("gjsmdssi");
+
+ File dssidir = new File("/usr/lib/dssi/");
+ String sofiles[] = dssidir.list(new FilenameFilter()
+ {
+ public boolean accept(File dir, String n)
+ {
+ return n.endsWith(".so");
+ }
+ });
+ List ilist = new ArrayList();
+ for (int i = 0; i < sofiles.length; i++)
+ ilist.addAll(examineLibrary(new File(dssidir, sofiles[i]).getAbsolutePath()));
+ infos = (DSSIInfo[]) ilist.toArray(new DSSIInfo[ilist.size()]);
+ }
+
+ public DSSIMidiDeviceProvider()
+ {
+ // Empty.
+ }
+
+ /* Return the Info array.
+ * @see javax.sound.midi.spi.MidiDeviceProvider#getDeviceInfo()
+ */
+ public Info[] getDeviceInfo()
+ {
+ return infos;
+ }
+
+ /* Get a MIDI Device for info.
+ * @see javax.sound.midi.spi.MidiDeviceProvider#getDevice(javax.sound.midi.MidiDevice.Info)
+ */
+ public MidiDevice getDevice(Info info)
+ {
+ for (int i = 0; i < infos.length; i++)
+ {
+ if (info.equals(infos[i]))
+ {
+ return new DSSISynthesizer(infos[i],
+ infos[i].soname,
+ infos[i].index);
+ }
+ }
+ throw new IllegalArgumentException("Don't recognize MIDI device " + info);
+ }
+}