diff options
Diffstat (limited to 'src/jogl/classes/com/sun/opengl/util/StreamUtil.java')
-rwxr-xr-x | src/jogl/classes/com/sun/opengl/util/StreamUtil.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/jogl/classes/com/sun/opengl/util/StreamUtil.java b/src/jogl/classes/com/sun/opengl/util/StreamUtil.java new file mode 100755 index 000000000..eeb08175e --- /dev/null +++ b/src/jogl/classes/com/sun/opengl/util/StreamUtil.java @@ -0,0 +1,100 @@ +/* + * 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; + } +} |