| /* 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); |
| } |
| } |