2 files changed, 241 insertions, 0 deletions
diff --git a/src/net/java/games/gluegen/runtime/BufferFactory.java b/src/net/java/games/gluegen/runtime/BufferFactory.java
new file mode 100644
index 000000000..2efb78ca6
--- /dev/null
+++ b/src/net/java/games/gluegen/runtime/BufferFactory.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package net.java.games.gluegen.runtime;
+
+import java.nio.*;
+
+public class BufferFactory {
+  public static ByteBuffer newDirectByteBuffer(int size) {
+    ByteBuffer buf = ByteBuffer.allocateDirect(size);
+    buf.order(ByteOrder.nativeOrder());
+    return buf;
+  }
+}
diff --git a/src/net/java/games/gluegen/runtime/StructAccessor.java b/src/net/java/games/gluegen/runtime/StructAccessor.java
new file mode 100644
index 000000000..a5d1d1717
--- /dev/null
+++ b/src/net/java/games/gluegen/runtime/StructAccessor.java
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package net.java.games.gluegen.runtime;
+
+import java.nio.*;
+
+public class StructAccessor {
+  private ByteBuffer   bb;
+  private CharBuffer   cb;
+  private DoubleBuffer db;
+  private FloatBuffer  fb;
+  private IntBuffer    ib;
+  private LongBuffer   lb;
+  private ShortBuffer  sb;
+
+  public StructAccessor(ByteBuffer bb) {
+    // Setting of byte order is concession to native code which needs
+    // to instantiate these
+    this.bb = bb.order(ByteOrder.nativeOrder());
+  }
+
+  public ByteBuffer getBuffer() {
+    return bb;
+  }
+
+  /** Return a slice of the current ByteBuffer starting at the
+      specified byte offset and extending the specified number of
+      bytes. Note that this method is not thread-safe with respect to
+      the other methods in this class. */
+  public ByteBuffer slice(int byteOffset, int byteLength) {
+    bb.position(byteOffset);
+    bb.limit(byteOffset + byteLength);
+    ByteBuffer newBuf = bb.slice();
+    bb.position(0);
+    bb.limit(bb.capacity());
+    return newBuf;
+  }
+
+  /** Retrieves the byte at the specified slot (byte offset). */
+  public byte getByteAt(int slot) {
+    return bb.get(slot);
+  }
+
+  /** Puts a byte at the specified slot (byte offset). */
+  public void setByteAt(int slot, byte v) {
+    bb.put(slot, v);
+  }
+
+  /** Retrieves the char at the specified slot (2-byte offset). */
+  public char getCharAt(int slot) {
+    return charBuffer().get(slot);
+  }
+
+  /** Puts a char at the specified slot (2-byte offset). */
+  public void setCharAt(int slot, char v) {
+    charBuffer().put(slot, v);
+  }
+
+  /** Retrieves the double at the specified slot (8-byte offset). */
+  public double getDoubleAt(int slot) {
+    return doubleBuffer().get(slot);
+  }
+
+  /** Puts a double at the specified slot (8-byte offset). */
+  public void setDoubleAt(int slot, double v) {
+    doubleBuffer().put(slot, v);
+  }
+
+  /** Retrieves the float at the specified slot (4-byte offset). */
+  public float getFloatAt(int slot) {
+    return floatBuffer().get(slot);
+  }
+
+  /** Puts a float at the specified slot (4-byte offset). */
+  public void setFloatAt(int slot, float v) {
+    floatBuffer().put(slot, v);
+  }
+
+  /** Retrieves the int at the specified slot (4-byte offset). */
+  public int getIntAt(int slot) {
+    return intBuffer().get(slot);
+  }
+
+  /** Puts a int at the specified slot (4-byte offset). */
+  public void setIntAt(int slot, int v) {
+    intBuffer().put(slot, v);
+  }
+
+  /** Retrieves the long at the specified slot (8-byte offset). */
+  public long getLongAt(int slot) {
+    return longBuffer().get(slot);
+  }
+
+  /** Puts a long at the specified slot (8-byte offset). */
+  public void setLongAt(int slot, long v) {
+    longBuffer().put(slot, v);
+  }
+
+  /** Retrieves the short at the specified slot (2-byte offset). */
+  public short getShortAt(int slot) {
+    return shortBuffer().get(slot);
+  }
+
+  /** Puts a short at the specified slot (2-byte offset). */
+  public void setShortAt(int slot, short v) {
+    shortBuffer().put(slot, v);
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  private CharBuffer charBuffer() {
+    if (cb == null) {
+      cb = bb.asCharBuffer();
+    }
+    return cb;
+  }
+
+  private DoubleBuffer doubleBuffer() {
+    if (db == null) {
+      db = bb.asDoubleBuffer();
+    }
+    return db;
+  }
+
+  private FloatBuffer floatBuffer() {
+    if (fb == null) {
+      fb = bb.asFloatBuffer();
+    }
+    return fb;
+  }
+
+  private IntBuffer intBuffer() {
+    if (ib == null) {
+      ib = bb.asIntBuffer();
+    }
+    return ib;
+  }
+
+  private LongBuffer longBuffer() {
+    if (lb == null) {
+      lb = bb.asLongBuffer();
+    }
+    return lb;
+  }
+
+  private ShortBuffer shortBuffer() {
+    if (sb == null) {
+      sb = bb.asShortBuffer();
+    }
+    return sb;
+  }
+}