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
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if you have obtained the source via the command 'git clone',
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1 files changed, 378 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/sound/midi/file/MidiFileReader.java b/libjava/classpath/gnu/javax/sound/midi/file/MidiFileReader.java
new file mode 100644
index 000000000..fb2a472fa
--- /dev/null
+++ b/libjava/classpath/gnu/javax/sound/midi/file/MidiFileReader.java
@@ -0,0 +1,378 @@
+/* MidiFileReader.java -- Read 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.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+
+import javax.sound.midi.InvalidMidiDataException;
+import javax.sound.midi.MetaMessage;
+import javax.sound.midi.MidiEvent;
+import javax.sound.midi.MidiFileFormat;
+import javax.sound.midi.MidiMessage;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.ShortMessage;
+import javax.sound.midi.SysexMessage;
+import javax.sound.midi.Track;
+
+/**
+ * A MIDI file reader.
+ *
+ * This code reads 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 MidiFileReader extends javax.sound.midi.spi.MidiFileReader
+{
+  /* Get the MidiFileFormat for the given input stream.
+   * @see javax.sound.midi.spi.MidiFileReader#getMidiFileFormat(java.io.InputStream)
+   */
+  public MidiFileFormat getMidiFileFormat(InputStream in)
+    throws InvalidMidiDataException, IOException
+  {
+    DataInputStream din;
+    if (in instanceof DataInputStream)
+      din = (DataInputStream) in;
+    else
+      din = new DataInputStream(in);
+
+    int type, ntracks, division, resolution, bytes;
+    float divisionType;
+
+    if (din.readInt() != 0x4d546864) // "MThd"
+      throw new InvalidMidiDataException("Invalid MIDI chunk header.");
+
+    bytes = din.readInt();
+    if (bytes < 6)
+      throw new
+        InvalidMidiDataException("Invalid MIDI chunk header length: " + bytes);
+
+    type = din.readShort();
+    if (type < 0 || type > 2)
+      throw new
+        InvalidMidiDataException("Invalid MIDI file type value: " + type);
+
+    ntracks = din.readShort();
+    if (ntracks <= 0)
+      throw new
+        InvalidMidiDataException("Invalid number of MIDI tracks: " + ntracks);
+
+    division = din.readShort();
+    if ((division & 0x8000) != 0)
+      {
+        division = -((division >>> 8) & 0xFF);
+        switch (division)
+          {
+          case 24:
+            divisionType = Sequence.SMPTE_24;
+            break;
+
+          case 25:
+            divisionType = Sequence.SMPTE_25;
+            break;
+
+          case 29:
+            divisionType = Sequence.SMPTE_30DROP;
+            break;
+
+          case 30:
+            divisionType = Sequence.SMPTE_30;
+            break;
+
+          default:
+            throw new
+              InvalidMidiDataException("Invalid MIDI frame division type: "
+                                       + division);
+          }
+        resolution = division & 0xff;
+      }
+    else
+      {
+        divisionType = Sequence.PPQ;
+        resolution = division & 0x7fff;
+      }
+
+    // If we haven't read every byte in the header now, just skip the rest.
+    din.skip(bytes - 6);
+
+    return new ExtendedMidiFileFormat(type, divisionType, resolution,
+                                      MidiFileFormat.UNKNOWN_LENGTH,
+                                      MidiFileFormat.UNKNOWN_LENGTH, ntracks);
+  }
+
+  /* Get the MidiFileFormat from the given URL.
+   * @see javax.sound.midi.spi.MidiFileReader#getMidiFileFormat(java.net.URL)
+   */
+  public MidiFileFormat getMidiFileFormat(URL url)
+    throws InvalidMidiDataException, IOException
+  {
+    InputStream is = url.openStream();
+    try
+      {
+        return getMidiFileFormat(is);
+      }
+    finally
+      {
+        is.close();
+      }
+  }
+
+  /* Get the MidiFileFormat from the given file.
+   * @see javax.sound.midi.spi.MidiFileReader#getMidiFileFormat(java.io.File)
+   */
+  public MidiFileFormat getMidiFileFormat(File file)
+    throws InvalidMidiDataException, IOException
+  {
+    InputStream is = new FileInputStream(file);
+    try
+      {
+        return getMidiFileFormat(is);
+      }
+    finally
+      {
+        is.close();
+      }
+  }
+
+  /* Get the MIDI Sequence found in this input stream.
+   * @see javax.sound.midi.spi.MidiFileReader#getSequence(java.io.InputStream)
+   */
+  public Sequence getSequence(InputStream is) throws InvalidMidiDataException,
+    IOException
+  {
+    MidiDataInputStream din = new MidiDataInputStream(is);
+    ExtendedMidiFileFormat mff = (ExtendedMidiFileFormat) getMidiFileFormat(din);
+
+    Sequence seq = new Sequence(mff.getDivisionType(), mff.getResolution());
+
+    int ntracks = mff.getNumberTracks();
+
+    while (ntracks-- > 0)
+      {
+        Track track = seq.createTrack();
+        int Mtrk = din.readInt();
+        if (Mtrk != 0x4d54726b)
+          throw new InvalidMidiDataException("Invalid MIDI track header.");
+        int length = din.readInt();
+
+        int runningStatus = -1;
+        int click = 0;
+
+        // Set this to true when we've hit an End of Track meta event.
+        boolean done = false;
+
+        // Read all events.
+        while (! done)
+          {
+            MidiMessage mm;
+            int dtime = din.readVariableLengthInt();
+            click += dtime;
+
+            int sbyte = din.readUnsignedByte();
+
+            if (sbyte < 0xf0)
+              {
+                ShortMessage sm;
+                switch (sbyte & 0xf0)
+                  {
+                  case ShortMessage.NOTE_OFF:
+                  case ShortMessage.NOTE_ON:
+                  case ShortMessage.POLY_PRESSURE:
+                  case ShortMessage.CONTROL_CHANGE:
+                  case ShortMessage.PITCH_BEND:
+                  case ShortMessage.SONG_POSITION_POINTER:
+                    sm = new ShortMessage();
+                    sm.setMessage(sbyte, din.readByte(), din.readByte());
+                    runningStatus = sbyte;
+                    break;
+
+                  case ShortMessage.PROGRAM_CHANGE:
+                  case ShortMessage.CHANNEL_PRESSURE:
+                  case ShortMessage.SONG_SELECT:
+                  case 0xF5: // FIXME: unofficial bus select. Not in spec??
+                    sm = new ShortMessage();
+                    sm.setMessage(sbyte, din.readByte(), 0);
+                    runningStatus = sbyte;
+                    break;
+
+                  case ShortMessage.TUNE_REQUEST:
+                  case ShortMessage.END_OF_EXCLUSIVE:
+                  case ShortMessage.TIMING_CLOCK:
+                  case ShortMessage.START:
+                  case ShortMessage.CONTINUE:
+                  case ShortMessage.STOP:
+                  case ShortMessage.ACTIVE_SENSING:
+                  case ShortMessage.SYSTEM_RESET:
+                    sm = new ShortMessage();
+                    sm.setMessage(sbyte, 0, 0);
+                    runningStatus = sbyte;
+                    break;
+
+                  default:
+                    if (runningStatus != - 1)
+                      {
+                        switch (runningStatus & 0xf0)
+                          {
+                          case ShortMessage.NOTE_OFF:
+                          case ShortMessage.NOTE_ON:
+                          case ShortMessage.POLY_PRESSURE:
+                          case ShortMessage.CONTROL_CHANGE:
+                          case ShortMessage.PITCH_BEND:
+                          case ShortMessage.SONG_POSITION_POINTER:
+                            sm = new ShortMessage();
+                            sm.setMessage(runningStatus, sbyte, din.readByte());
+                            break;
+
+                          case ShortMessage.PROGRAM_CHANGE:
+                          case ShortMessage.CHANNEL_PRESSURE:
+                          case ShortMessage.SONG_SELECT:
+                          case 0xF5: // FIXME: unofficial bus select. Not in
+                                     // spec??
+                            sm = new ShortMessage();
+                            sm.setMessage(runningStatus, sbyte, 0);
+                            continue;
+
+                          case ShortMessage.TUNE_REQUEST:
+                          case ShortMessage.END_OF_EXCLUSIVE:
+                          case ShortMessage.TIMING_CLOCK:
+                          case ShortMessage.START:
+                          case ShortMessage.CONTINUE:
+                          case ShortMessage.STOP:
+                          case ShortMessage.ACTIVE_SENSING:
+                          case ShortMessage.SYSTEM_RESET:
+                            sm = new ShortMessage();
+                            sm.setMessage(runningStatus, 0, 0);
+                            continue;
+
+                          default:
+                            throw new
+                              InvalidMidiDataException("Invalid Short MIDI Event: "
+                                                       + sbyte);
+                          }
+                      }
+                    else
+                      throw new
+                        InvalidMidiDataException("Invalid Short MIDI Event: "
+                                                 + sbyte);
+                  }
+                mm = sm;
+              }
+            else if (sbyte == 0xf0 || sbyte == 0xf7)
+              {
+                // System Exclusive event
+                int slen = din.readVariableLengthInt();
+                byte sysex[] = new byte[slen];
+                din.readFully(sysex);
+                SysexMessage sm = new SysexMessage();
+                sm.setMessage(sbyte, sysex, slen);
+                mm = sm;
+                runningStatus = - 1;
+              }
+            else if (sbyte == 0xff)
+              {
+                // Meta Message
+                byte mtype = din.readByte();
+                int mlen = din.readVariableLengthInt();
+                byte meta[] = new byte[mlen];
+                din.readFully(meta);
+                MetaMessage metam = new MetaMessage();
+                metam.setMessage(mtype, meta, mlen);
+                mm = metam;
+
+                if (mtype == 0x2f) // End of Track
+                  done = true;
+
+                runningStatus = - 1;
+              }
+            else
+              {
+                throw new InvalidMidiDataException("Invalid status byte: "
+                                                   + sbyte);
+              }
+
+            track.add(new MidiEvent(mm, click));
+          }
+      }
+
+    return seq;
+  }
+
+  /* Get the MIDI Sequence found at the given URL.
+   * @see javax.sound.midi.spi.MidiFileReader#getSequence(java.net.URL)
+   */
+  public Sequence getSequence(URL url) throws InvalidMidiDataException,
+    IOException
+  {
+    InputStream is = url.openStream();
+    try
+      {
+        return getSequence(is);
+      }
+    finally
+      {
+        is.close();
+      }
+  }
+
+  /* Get the MIDI Sequence found in the given file.
+   * @see javax.sound.midi.spi.MidiFileReader#getSequence(java.io.File)
+   */
+  public Sequence getSequence(File file) throws InvalidMidiDataException,
+    IOException
+  {
+    InputStream is = new FileInputStream(file);
+    try
+      {
+        return getSequence(is);
+      }
+    finally
+      {
+        is.close();
+      }
+  }
+}