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authorKenneth Russel <[email protected]>2006-01-13 07:29:23 +0000
committerKenneth Russel <[email protected]>2006-01-13 07:29:23 +0000
commit16e23f079b1e5fdc15b64bf1593cbda8e8dcffc0 (patch)
tree8cf430f395f2a2691d152c9a61ca212d7a6c1f55 /src/classes/com/sun/opengl/util/BufferUtil.java
parent688ffdc8cc190c51c3e7355a4893e3e475efa29f (diff)
Renamed com.sun.opengl.utils to com.sun.opengl.util. Moved
TextureIO-related classes to com.sun.opengl.util.texture and TextureProvider, TextureWriter and format-specific readers to com.sun.opengl.util.texture.spi. Renamed BufferUtils to BufferUtil. Added ImageUtil and FileUtil. Cleaned up javadoc. Updated demos. Cleaned up some imports. git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@538 232f8b59-042b-4e1e-8c03-345bb8c30851
Diffstat (limited to 'src/classes/com/sun/opengl/util/BufferUtil.java')
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1 files changed, 268 insertions, 0 deletions
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+/*
+ * 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
+ * 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 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 com.sun.opengl.util;
+
+import java.nio.*;
+import java.util.*;
+
+/** Utility routines for dealing with direct buffers. */
+
+public class BufferUtil {
+ public static final int SIZEOF_BYTE = 1;
+ public static final int SIZEOF_SHORT = 2;
+ public static final int SIZEOF_INT = 4;
+ public static final int SIZEOF_FLOAT = 4;
+ public static final int SIZEOF_LONG = 8;
+ public static final int SIZEOF_DOUBLE = 8;
+
+ private BufferUtil() {}
+
+ //----------------------------------------------------------------------
+ // Allocation routines
+ //
+
+ /** Allocates a new direct ByteBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static ByteBuffer newByteBuffer(int numElements) {
+ ByteBuffer bb = ByteBuffer.allocateDirect(numElements);
+ bb.order(ByteOrder.nativeOrder());
+ return bb;
+ }
+
+ /** Allocates a new direct DoubleBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static DoubleBuffer newDoubleBuffer(int numElements) {
+ ByteBuffer bb = newByteBuffer(numElements * SIZEOF_DOUBLE);
+ return bb.asDoubleBuffer();
+ }
+
+ /** Allocates a new direct FloatBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static FloatBuffer newFloatBuffer(int numElements) {
+ ByteBuffer bb = newByteBuffer(numElements * SIZEOF_FLOAT);
+ return bb.asFloatBuffer();
+ }
+
+ /** Allocates a new direct IntBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static IntBuffer newIntBuffer(int numElements) {
+ ByteBuffer bb = newByteBuffer(numElements * SIZEOF_INT);
+ return bb.asIntBuffer();
+ }
+
+ /** Allocates a new direct LongBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static LongBuffer newLongBuffer(int numElements) {
+ ByteBuffer bb = newByteBuffer(numElements * SIZEOF_LONG);
+ return bb.asLongBuffer();
+ }
+
+ /** Allocates a new direct ShortBuffer with the specified number of
+ elements. The returned buffer will have its byte order set to
+ the host platform's native byte order. */
+ public static ShortBuffer newShortBuffer(int numElements) {
+ ByteBuffer bb = newByteBuffer(numElements * SIZEOF_SHORT);
+ return bb.asShortBuffer();
+ }
+
+ //----------------------------------------------------------------------
+ // Copy routines (type-to-type)
+ //
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed ByteBuffer into
+ a newly-allocated direct ByteBuffer. The returned buffer will
+ have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyByteBuffer(ByteBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining());
+ orig.mark();
+ dest.put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed DoubleBuffer
+ into a newly-allocated direct DoubleBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static DoubleBuffer copyDoubleBuffer(DoubleBuffer orig) {
+ return copyDoubleBufferAsByteBuffer(orig).asDoubleBuffer();
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed FloatBuffer
+ into a newly-allocated direct FloatBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static FloatBuffer copyFloatBuffer(FloatBuffer orig) {
+ return copyFloatBufferAsByteBuffer(orig).asFloatBuffer();
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed IntBuffer
+ into a newly-allocated direct IntBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static IntBuffer copyIntBuffer(IntBuffer orig) {
+ return copyIntBufferAsByteBuffer(orig).asIntBuffer();
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed LongBuffer
+ into a newly-allocated direct LongBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static LongBuffer copyLongBuffer(LongBuffer orig) {
+ return copyLongBufferAsByteBuffer(orig).asLongBuffer();
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed ShortBuffer
+ into a newly-allocated direct ShortBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ShortBuffer copyShortBuffer(ShortBuffer orig) {
+ return copyShortBufferAsByteBuffer(orig).asShortBuffer();
+ }
+
+ //----------------------------------------------------------------------
+ // Copy routines (type-to-ByteBuffer)
+ //
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed DoubleBuffer
+ into a newly-allocated direct ByteBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyDoubleBufferAsByteBuffer(DoubleBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_DOUBLE);
+ orig.mark();
+ dest.asDoubleBuffer().put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed FloatBuffer
+ into a newly-allocated direct ByteBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyFloatBufferAsByteBuffer(FloatBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_FLOAT);
+ orig.mark();
+ dest.asFloatBuffer().put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed IntBuffer into
+ a newly-allocated direct ByteBuffer. The returned buffer will
+ have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyIntBufferAsByteBuffer(IntBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_INT);
+ orig.mark();
+ dest.asIntBuffer().put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed LongBuffer into
+ a newly-allocated direct ByteBuffer. The returned buffer will
+ have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyLongBufferAsByteBuffer(LongBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_LONG);
+ orig.mark();
+ dest.asLongBuffer().put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+
+ /** Copies the <i>remaining</i> elements (as defined by
+ <code>limit() - position()</code>) in the passed ShortBuffer
+ into a newly-allocated direct ByteBuffer. The returned buffer
+ will have its byte order set to the host platform's native byte
+ order. The position of the newly-allocated buffer will be zero,
+ and the position of the passed buffer is unchanged (though its
+ mark is changed). */
+ public static ByteBuffer copyShortBufferAsByteBuffer(ShortBuffer orig) {
+ ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_SHORT);
+ orig.mark();
+ dest.asShortBuffer().put(orig);
+ orig.reset();
+ dest.rewind();
+ return dest;
+ }
+}