obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
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1 files changed, 197 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/sound/midi/file/MidiFileWriter.java b/libjava/classpath/gnu/javax/sound/midi/file/MidiFileWriter.java
new file mode 100644
index 000000000..5170fc1e7
--- /dev/null
+++ b/libjava/classpath/gnu/javax/sound/midi/file/MidiFileWriter.java
@@ -0,0 +1,197 @@
+/* MidiFileWriter.java -- Write MIDI files.
+   Copyright (C) 2006 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.file;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import javax.sound.midi.MetaMessage;
+import javax.sound.midi.MidiEvent;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.Track;
+
+/**
+ * A MIDI file writer.
+ *
+ * This code writes MIDI file types 0 and 1.
+ *
+ * There are many decent documents on the web describing the MIDI file
+ * format.  I didn't bother looking for the official document.  If it
+ * exists, I'm not even sure if it is freely available.  We should
+ * update this comment if we find out anything helpful here.
+ *
+ * @author Anthony Green (green@redhat.com)
+ *
+ */
+public class MidiFileWriter
+    extends javax.sound.midi.spi.MidiFileWriter
+{
+  /* Return an array indicating which midi file types are supported.
+   * @see javax.sound.midi.spi.MidiFileWriter#getMidiFileTypes()
+   */
+  public int[] getMidiFileTypes()
+  {
+    return new int[]{0, 1};
+  }
+
+  /* Return an array indicating which midi file types are supported
+   * for a given Sequence.
+   * @see javax.sound.midi.spi.MidiFileWriter#getMidiFileTypes(javax.sound.midi.Sequence)
+   */
+  public int[] getMidiFileTypes(Sequence sequence)
+  {
+    if (sequence.getTracks().length == 1)
+      return new int[]{0};
+    else
+      return new int[]{1};
+  }
+
+  /* Write a sequence to an output stream in standard midi format.
+   * @see javax.sound.midi.spi.MidiFileWriter#write(javax.sound.midi.Sequence, int, java.io.OutputStream)
+   */
+  public int write(Sequence in, int fileType, OutputStream out)
+      throws IOException
+  {
+    MidiDataOutputStream dos = new MidiDataOutputStream (out);
+    Track[] tracks = in.getTracks();
+    dos.writeInt(0x4d546864); // MThd
+    dos.writeInt(6);
+    dos.writeShort(fileType);
+    dos.writeShort(tracks.length);
+    float divisionType = in.getDivisionType();
+    int resolution = in.getResolution();
+    // FIXME: division computation is incomplete.
+    int division = 0;
+    if (divisionType == Sequence.PPQ)
+      division = resolution & 0x7fff;
+    dos.writeShort(division);
+    int length = 14;
+    for (int i = 0; i < tracks.length; i++)
+      length += writeTrack(tracks[i], dos);
+    return length;
+  }
+
+  /**
+   * Compute the length of a track as it will be written to the
+   * output stream.
+   *
+   * @param track the track to measure
+   * @param dos a MidiDataOutputStream used for helper method
+   * @return the length of the track
+   */
+  private int computeTrackLength(Track track, MidiDataOutputStream dos)
+  {
+    int count = 0, length = 0, i = 0, eventCount = track.size();
+    long ptick = 0;
+    while (i < eventCount)
+      {
+        MidiEvent me = track.get(i);
+        long tick = me.getTick();
+        length += dos.variableLengthIntLength((int) (tick - ptick));
+        ptick = tick;
+        length += me.getMessage().getLength();
+        i++;
+      }
+    return length;
+  }
+
+  /**
+   * Write a track to an output stream.
+   *
+   * @param track the track to write
+   * @param dos a MidiDataOutputStream to write to
+   * @return the number of bytes written
+   */
+  private int writeTrack(Track track, MidiDataOutputStream dos)
+    throws IOException
+  {
+    int i = 0, elength = track.size(), trackLength;
+    MidiEvent pme = null;
+    dos.writeInt(0x4d54726b); // "MTrk"
+    trackLength = computeTrackLength(track, dos);
+    dos.writeInt(trackLength);
+    while (i < elength)
+      {
+        MidiEvent me = track.get(i);
+        int dtime = 0;
+        if (pme != null)
+          dtime = (int) (me.getTick() - pme.getTick());
+        dos.writeVariableLengthInt(dtime);
+        // FIXME: use running status byte
+        byte msg[] = me.getMessage().getMessage();
+        dos.write(msg);
+        pme = me;
+        i++;
+      }
+
+    // We're done if the last event was an End of Track meta message.
+    if (pme != null && (pme.getMessage() instanceof MetaMessage))
+      {
+        MetaMessage mm = (MetaMessage) pme.getMessage();
+        if (mm.getType() == 0x2f) // End of Track message
+          return trackLength + 8;
+      }
+
+    // Write End of Track meta message
+    dos.writeVariableLengthInt(0); // Delta time of 0
+    dos.writeByte(0xff); // Meta Message
+    dos.writeByte(0x2f); // End of Track message
+    dos.writeVariableLengthInt(0); // Length of 0
+
+    return trackLength + 8 + 4;
+  }
+
+  /* Write a Sequence to a file.
+   * @see javax.sound.midi.spi.MidiFileWriter#write(javax.sound.midi.Sequence, int, java.io.File)
+   */
+  public int write(Sequence in, int fileType, File out) throws IOException
+  {
+    OutputStream os = new FileOutputStream(out);
+    try
+      {
+        return write(in, fileType, os);
+      }
+    finally
+      {
+        os.close();
+      }
+  }
+
+}