From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../classpath/java/nio/FloatViewBufferImpl.java | 171 +++++++++++++++++++++ 1 file changed, 171 insertions(+) create mode 100644 libjava/classpath/java/nio/FloatViewBufferImpl.java (limited to 'libjava/classpath/java/nio/FloatViewBufferImpl.java') diff --git a/libjava/classpath/java/nio/FloatViewBufferImpl.java b/libjava/classpath/java/nio/FloatViewBufferImpl.java new file mode 100644 index 000000000..663b65c4e --- /dev/null +++ b/libjava/classpath/java/nio/FloatViewBufferImpl.java @@ -0,0 +1,171 @@ +/* FloatViewBufferImpl.java -- + Copyright (C) 2003, 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.nio; + +final class FloatViewBufferImpl extends FloatBuffer +{ + /** Position in bb (i.e. a byte offset) where this buffer starts. */ + private final int offset; + private final ByteBuffer bb; + private final boolean readOnly; + private final ByteOrder endian; + + FloatViewBufferImpl (ByteBuffer bb, int capacity) + { + super (capacity, capacity, 0, -1, bb.isDirect() ? + VMDirectByteBuffer.adjustAddress(bb.address, bb.position()):null, null, 0); + this.bb = bb; + this.offset = bb.position(); + this.readOnly = bb.isReadOnly(); + this.endian = bb.order(); + } + + public FloatViewBufferImpl (ByteBuffer bb, int offset, int capacity, + int limit, int position, int mark, + boolean readOnly, ByteOrder endian) + { + super (capacity, limit, position, mark, bb.isDirect() ? + VMDirectByteBuffer.adjustAddress(bb.address, offset):null, null, 0); + this.bb = bb; + this.offset = offset; + this.readOnly = readOnly; + this.endian = endian; + } + + /** + * Reads the float at this buffer's current position, + * and then increments the position. + * + * @exception BufferUnderflowException If there are no remaining + * floats in this buffer. + */ + public float get () + { + int p = position(); + float result = ByteBufferHelper.getFloat(bb, (p << 2) + offset, endian); + position(p + 1); + return result; + } + + /** + * Absolute get method. Reads the float at position + * index. + * + * @exception IndexOutOfBoundsException If index is negative or not smaller + * than the buffer's limit. + */ + public float get (int index) + { + return ByteBufferHelper.getFloat(bb, (index << 2) + offset, endian); + } + + public FloatBuffer put (float value) + { + int p = position(); + ByteBufferHelper.putFloat(bb, (p << 2) + offset, value, endian); + position(p + 1); + return this; + } + + public FloatBuffer put (int index, float value) + { + ByteBufferHelper.putFloat(bb, (index << 2) + offset, value, endian); + return this; + } + + public FloatBuffer compact () + { + if (position () > 0) + { + int count = limit () - position (); + bb.shiftDown(offset, offset + 4 * position(), 4 * count); + position (count); + limit (capacity ()); + } + else + { + position(limit()); + limit(capacity()); + } + return this; + } + + public FloatBuffer slice () + { + // Create a sliced copy of this object that shares its content. + return new FloatViewBufferImpl (bb, (position () << 2) + offset, + remaining(), remaining(), 0, -1, + readOnly, endian); + } + + FloatBuffer duplicate (boolean readOnly) + { + int pos = position(); + reset(); + int mark = position(); + position(pos); + return new FloatViewBufferImpl (bb, offset, capacity(), limit(), + pos, mark, readOnly, endian); + } + + public FloatBuffer duplicate () + { + return duplicate(readOnly); + } + + public FloatBuffer asReadOnlyBuffer () + { + return duplicate(true); + } + + public boolean isReadOnly () + { + return readOnly; + } + + public boolean isDirect () + { + return bb.isDirect (); + } + + public ByteOrder order () + { + return endian; + } +} -- cgit v1.2.3