1 files changed, 235 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/awt/font/opentype/MacResourceFork.java b/gcc-4.4.3/libjava/classpath/gnu/java/awt/font/opentype/MacResourceFork.java
new file mode 100644
index 000000000..8115e0403
--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/java/awt/font/opentype/MacResourceFork.java
@@ -0,0 +1,235 @@
+/* MacResourceFork.java -- Parses MacOS resource forks.
+   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.java.awt.font.opentype;
+
+import java.nio.ByteBuffer;
+
+
+/**
+ * A class for accessing data that is stored in the resource fork of
+ * Macintosh files. Writing resource forks is currently not supported.
+ *
+ * <p>The gnu.java.awt.font package uses this class for accessing
+ * fonts in the MacOS X ".dfont" format, which is is a file in the
+ * format of a Macintosh resource fork, but stored in the normal data
+ * fork of the file.
+ *
+ * <p>The implementation has been designed to work efficiently with
+ * the virtual memory subsystem. It is recommended to pass an
+ * instance of {@link java.nio.MappedByteBuffer} to the constructor.
+ *
+ * <p>Thread Safety: All access is synchronized on the ByteBuffer
+ * that is passed to the constructor.
+ *
+ * @see <a href=
+ * "http://developer.apple.com/documentation/mac/MoreToolbox/MoreToolbox-99.html"
+ * >Apple&#x2019; developer documentation about the Resource File
+ * Format</a>
+ *
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
+final class MacResourceFork
+{
+  int[] types;
+  Resource[][] resources;
+  ByteBuffer buf;
+
+  public MacResourceFork(ByteBuffer buf)
+  {
+    int typeListOffset;
+    int refListOffset;
+    int nameListOffset;
+    int mapOffset, mapLen;
+    int dataOffset, dataLen;
+    int numTypes;
+
+    synchronized (buf)
+    {
+      buf = buf.duplicate();
+      this.buf = buf;
+      buf.position(0);
+      dataOffset = buf.getInt();
+      mapOffset = buf.getInt();
+      dataLen = buf.getInt();
+      mapLen = buf.getInt();
+      buf.position(mapOffset + 24);
+      refListOffset = mapOffset + buf.getChar();
+      nameListOffset = mapOffset + buf.getChar();
+      numTypes = buf.getChar() + 1;
+      types = new int[numTypes];
+      resources = new Resource[numTypes][];
+
+      /* Parse resource type list. */
+      typeListOffset = buf.position();
+      for (int i = 0; i < numTypes; i++)
+      {
+        buf.position(typeListOffset + 8 * i);
+        int resType = buf.getInt();
+        int numRes = buf.getChar() + 1;
+
+        types[i] = resType;
+        resources[i] = new Resource[numRes];
+
+        buf.position(refListOffset + buf.getChar());
+        for (int j = 0; j < numRes; j++)
+        {
+          short resID = buf.getShort();
+          int resNameOffset = nameListOffset + buf.getChar();
+          int resDataOffset = buf.getInt();
+          byte resAttr = (byte) (resDataOffset >> 24);
+          resDataOffset = dataOffset + (resDataOffset & 0x00ffffff);
+          buf.getInt(); /* skip four reserved bytes */
+
+          Resource rsrc = new Resource(buf, resType, resID, resDataOffset,
+                                       resNameOffset);
+          resources[i][j] = rsrc;
+        }
+      }
+    }
+  }
+  
+
+  public Resource[] getResources(int type)
+  {
+    synchronized (buf)
+    {
+      for (int i = 0; i < types.length; i++)
+      {
+        if (types[i] == type)
+          return resources[i];
+      }
+    }
+    return null;
+  }
+  
+
+  public Resource getResource(int type, short id)
+  {
+    Resource[] res;
+
+    synchronized (buf)
+    {
+      for (int i = 0; i < types.length; i++)
+      {
+        if (types[i] != type)
+          continue;
+          
+        res = resources[i];
+        for (int j = 0; j < res.length; j++)
+          if (res[j].getID() == id)
+            return res[j];
+      }
+    }
+
+    return null;
+  }
+
+
+  /**
+   * A single resource that is contained in a resource fork.
+   */
+  public static final class Resource
+  {
+    int type;
+    short id;
+    byte attribute;
+    int nameOffset;
+    int dataOffset;
+    ByteBuffer buf;
+
+    private Resource(ByteBuffer buf,
+                     int type, short id, int dataOffset, int nameOffset)
+    {
+      this.buf = buf;
+      this.type = type;
+      this.id = id;
+      this.dataOffset = dataOffset;
+      this.nameOffset = nameOffset;
+    }
+
+
+    /**
+     * Returns the type of this resource.
+     *
+     * @return an <code>int</code> encoding a four-byte type tag,
+     * such as <code>0x464f4e54</code> for <code>'FONT'</code>.
+     */
+    public int getType()
+    {
+      return type;
+    }
+
+
+    /**
+     * Returns the ID of this resource.
+     */
+    public short getID()
+    {
+      return id;
+    }
+
+
+    /**
+     * Retrieves the content of the resource. Only one page of memory
+     * is touched, irrespective of the actual size of the resource.
+     */
+    public ByteBuffer getContent()
+    {
+      synchronized (buf)
+      {
+        buf.limit(buf.capacity());
+        int len = buf.getInt(dataOffset);
+        buf.position(dataOffset + 4).limit(dataOffset + 4 + len);
+        return buf.slice();
+      }
+    }
+
+
+    /**
+     * Determines the length of the resource in bytes.
+     */
+    public int getLength()
+    {
+      synchronized (buf)
+      {
+        return buf.getInt(dataOffset);
+      }
+    }
+  }
+}