From 7fad83338964ecd32303d6e2737b19963492ecfe Mon Sep 17 00:00:00 2001
From: Kevin Rushforth <kcr@dev.java.net>
Date: Wed, 9 Jun 2004 04:13:21 +0000
Subject: Initial creation of j3d-core-utils sources in CVS repository

git-svn-id: https://svn.java.net/svn/j3d-core-utils~svn/trunk@5 9497e636-51bd-65ba-982d-a4982e1767a5
---
 .../com/sun/j3d/internal/DoubleBufferWrapper.java  | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100755 src/classes/share/com/sun/j3d/internal/DoubleBufferWrapper.java

(limited to 'src/classes/share/com/sun/j3d/internal/DoubleBufferWrapper.java')

diff --git a/src/classes/share/com/sun/j3d/internal/DoubleBufferWrapper.java b/src/classes/share/com/sun/j3d/internal/DoubleBufferWrapper.java
new file mode 100755
index 0000000..c6f011d
--- /dev/null
+++ b/src/classes/share/com/sun/j3d/internal/DoubleBufferWrapper.java
@@ -0,0 +1,153 @@
+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 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 MICROSYSTEMS, 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, licensed or
+ * intended for use in the design, construction, operation or
+ * maintenance of any nuclear facility.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+package com.sun.j3d.internal;
+
+import javax.media.j3d.J3DBuffer;
+import java.nio.DoubleBuffer;
+
+/**
+ * NIO Buffers are new in Java 1.4 but we need to run on 1.3
+ * as well, so this class was created to hide the NIO classes
+ * from non-1.4 Java 3D users.
+ *
+ * <p>
+ * NOTE: We no longer need to support JDK 1.3 as of the Java 3D 1.3.2
+ * community source release on java.net. We should be able to get rid
+ * of this class.
+ */
+
+public class DoubleBufferWrapper extends BufferWrapper {
+
+    private DoubleBuffer buffer = null;
+
+    /**
+     * Constructor initializes buffer with a
+     * java.nio.DoubleBuffer object.
+     */
+    public DoubleBufferWrapper(DoubleBuffer buffer) {
+	this.buffer = buffer;
+    }
+
+    /**
+     * Constructor initializes buffer with a
+     * javax.media.j3d.J3DBuffer object.
+     */
+    public DoubleBufferWrapper(J3DBuffer b) {
+        buffer = (DoubleBuffer)(b.getBuffer());
+    }
+
+    /**
+     * Returns the java.nio.Buffer contained within this
+     * DoubleBufferWrapper.
+     */
+    public java.nio.Buffer getBuffer() {
+	return this.buffer;
+    }
+
+    // Wrapper for all relevant DoubleBuffer methods.
+
+    /**
+     * @return A boolean indicating whether the java.nio.Buffer
+     * object contained within this DoubleBuffer is direct or
+     * indirect.
+     */
+    public boolean isDirect() {
+	return buffer.isDirect();
+    }
+
+    /**
+     * Reads the double at this buffer's current position,
+     * and then increments the position.
+     */
+    public double get() {
+	return buffer.get();
+    }
+
+    /**
+     * Reads the double at the given offset into the buffer.
+     */
+    public double get(int index) {
+	return buffer.get(index);
+    }
+
+    /**
+     * Bulk <i>get</i> method.  Transfers <code>dst.length</code>
+     * doubles from
+     * the buffer to the destination array and increments the
+     * buffer's position by <code>dst.length</code>.
+     */
+    public DoubleBufferWrapper get(double[] dst) {
+	buffer.get(dst);
+	return this;
+    }
+
+    /**
+     * Bulk <i>get</i> method.  Transfers <i>length</i> doubles
+     * from the buffer starting at position <i>offset</i> into
+     * the destination array.
+     */
+    public DoubleBufferWrapper get(double[] dst,  int offset, int length){
+        buffer.get(dst, offset, length);
+        return this;
+    }
+
+    /**
+     * Bulk <i>put</i> method.  Transfers <code>src.length</code>
+     * doubles into the buffer at the current position.
+     */
+    public DoubleBufferWrapper put(double[] src) {
+        buffer.put(src);
+        return this;
+    }
+
+    /**
+     * Creates and returns a J3DBuffer object containing the
+     * buffer in this DoubleBufferWrapper object.
+     */
+    public J3DBuffer getJ3DBuffer() {
+        return new J3DBuffer( buffer );
+    }
+
+}
-- 
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