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+/*
+ * Copyright (c) 2006 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 javax.media.opengl.util.*;
+
+import java.io.*;
+import java.nio.*;
+
+/** Utilities for dealing with streams. */
+
+public class StreamUtil {
+ private StreamUtil() {}
+
+ public static byte[] readAll2Array(InputStream stream) throws IOException {
+ BytesRead bytesRead = readAllImpl(stream);
+ byte[] data = bytesRead.data;
+ if (bytesRead.payloadLen != data.length) {
+ data = new byte[bytesRead.payloadLen];
+ System.arraycopy(bytesRead.data, 0, data, 0, bytesRead.payloadLen);
+ }
+ return data;
+ }
+
+ public static ByteBuffer readAll2Buffer(InputStream stream) throws IOException {
+ BytesRead bytesRead = readAllImpl(stream);
+ return BufferUtil.newByteBuffer(bytesRead.data, 0, bytesRead.payloadLen);
+ }
+
+ private static BytesRead readAllImpl(InputStream stream) throws IOException {
+ // FIXME: Shall we do this here ?
+ if( !(stream instanceof BufferedInputStream) ) {
+ stream = new BufferedInputStream(stream);
+ }
+ int avail = stream.available();
+ byte[] data = new byte[avail];
+ int numRead = 0;
+ int pos = 0;
+ do {
+ if (pos + avail > data.length) {
+ byte[] newData = new byte[pos + avail];
+ System.arraycopy(data, 0, newData, 0, pos);
+ data = newData;
+ }
+ numRead = stream.read(data, pos, avail);
+ if (numRead >= 0) {
+ pos += numRead;
+ }
+ avail = stream.available();
+ } while (avail > 0 && numRead >= 0);
+
+ return new BytesRead(pos, data);
+ }
+
+ private static class BytesRead {
+ BytesRead(int payloadLen, byte[] data) {
+ this.payloadLen=payloadLen;
+ this.data=data;
+ }
+ int payloadLen;
+ byte[] data;
+ }
+}