1 /* ShortBufferImpl.java --
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
40 import java.nio.ByteBuffer;
41 import java.nio.CharBuffer;
42 import java.nio.DoubleBuffer;
43 import java.nio.FloatBuffer;
44 import java.nio.IntBuffer;
45 import java.nio.LongBuffer;
46 import java.nio.ShortBuffer;
48 public final class ShortBufferImpl extends ShortBuffer
50 private int array_offset;
53 public ShortBufferImpl(int cap, int off, int lim)
55 this.backing_buffer = new short[cap];
61 public ShortBufferImpl(short[] array, int off, int lim)
63 this.backing_buffer = array;
64 this.cap = array.length;
69 public ShortBufferImpl(ShortBufferImpl copy)
71 backing_buffer = copy.backing_buffer;
74 position(copy.position());
79 position(position() + a);
82 ShortBufferImpl(byte[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
83 private static native byte nio_get_Byte(ShortBufferImpl b, int index, int limit);
84 private static native void nio_put_Byte(ShortBufferImpl b, int index, int limit, byte value);
85 public ByteBuffer asByteBuffer() { ByteBufferImpl res = new ByteBufferImpl(backing_buffer); res.limit((limit()*1)/2); return res; }
87 ShortBufferImpl(char[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
88 private static native char nio_get_Char(ShortBufferImpl b, int index, int limit);
89 private static native void nio_put_Char(ShortBufferImpl b, int index, int limit, char value);
90 public CharBuffer asCharBuffer() { CharBufferImpl res = new CharBufferImpl(backing_buffer); res.limit((limit()*2)/2); return res; }
92 ShortBufferImpl(short[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
93 private static native short nio_get_Short(ShortBufferImpl b, int index, int limit);
94 private static native void nio_put_Short(ShortBufferImpl b, int index, int limit, short value);
95 public ShortBuffer asShortBuffer() { ShortBufferImpl res = new ShortBufferImpl(backing_buffer); res.limit((limit()*2)/2); return res; }
97 ShortBufferImpl(int[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
98 private static native int nio_get_Int(ShortBufferImpl b, int index, int limit);
99 private static native void nio_put_Int(ShortBufferImpl b, int index, int limit, int value);
100 public IntBuffer asIntBuffer() { IntBufferImpl res = new IntBufferImpl(backing_buffer); res.limit((limit()*4)/2); return res; }
102 ShortBufferImpl(long[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
103 private static native long nio_get_Long(ShortBufferImpl b, int index, int limit);
104 private static native void nio_put_Long(ShortBufferImpl b, int index, int limit, long value);
105 public LongBuffer asLongBuffer() { LongBufferImpl res = new LongBufferImpl(backing_buffer); res.limit((limit()*8)/2); return res; }
107 ShortBufferImpl(float[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
108 private static native float nio_get_Float(ShortBufferImpl b, int index, int limit);
109 private static native void nio_put_Float(ShortBufferImpl b, int index, int limit, float value);
110 public FloatBuffer asFloatBuffer() { FloatBufferImpl res = new FloatBufferImpl(backing_buffer); res.limit((limit()*4)/2); return res; }
112 ShortBufferImpl(double[] copy) { this.backing_buffer = copy != null ? nio_cast(copy) : null; }
113 private static native double nio_get_Double(ShortBufferImpl b, int index, int limit);
114 private static native void nio_put_Double(ShortBufferImpl b, int index, int limit, double value);
115 public DoubleBuffer asDoubleBuffer() { DoubleBufferImpl res = new DoubleBufferImpl(backing_buffer); res.limit((limit()*8)/2); return res; }
117 private static native short[] nio_cast(byte[]copy);
118 private static native short[] nio_cast(char[]copy);
119 private static native short[] nio_cast(short[]copy);
120 private static native short[] nio_cast(long[]copy);
121 private static native short[] nio_cast(int[]copy);
122 private static native short[] nio_cast(float[]copy);
123 private static native short[] nio_cast(double[]copy);
125 public boolean isReadOnly()
130 public ShortBuffer slice()
132 ShortBufferImpl a = new ShortBufferImpl(this);
133 a.array_offset = position();
137 public ShortBuffer duplicate()
139 return new ShortBufferImpl(this);
142 public ShortBuffer asReadOnlyBuffer()
144 ShortBufferImpl a = new ShortBufferImpl(this);
149 public ShortBuffer compact()
154 public boolean isDirect()
156 return backing_buffer != null;
159 final public short get()
161 short e = backing_buffer[position()];
162 position(position()+1);
166 final public ShortBuffer put(short b)
168 backing_buffer[position()] = b;
169 position(position()+1);
173 final public short get(int index)
175 return backing_buffer[index];
178 final public ShortBuffer put(int index, short b)
180 backing_buffer[index] = b;
184 final public char getChar() { char a = nio_get_Char(this, position(), limit()); inc_pos(2); return a; } final public ShortBuffer putChar(char value) { nio_put_Char(this, position(), limit(), value); inc_pos(2); return this; } final public char getChar(int index) { char a = nio_get_Char(this, index, limit()); return a; } final public ShortBuffer putChar(int index, char value) { nio_put_Char(this, index, limit(), value); return this; };
185 final public short getShort() { return get(); } final public ShortBuffer putShort(short value) { return put(value); } final public short getShort(int index) { return get(index); } final public ShortBuffer putShort(int index, short value) { return put(index, value); };
186 final public int getInt() { int a = nio_get_Int(this, position(), limit()); inc_pos(4); return a; } final public ShortBuffer putInt(int value) { nio_put_Int(this, position(), limit(), value); inc_pos(4); return this; } final public int getInt(int index) { int a = nio_get_Int(this, index, limit()); return a; } final public ShortBuffer putInt(int index, int value) { nio_put_Int(this, index, limit(), value); return this; };
187 final public long getLong() { long a = nio_get_Long(this, position(), limit()); inc_pos(8); return a; } final public ShortBuffer putLong(long value) { nio_put_Long(this, position(), limit(), value); inc_pos(8); return this; } final public long getLong(int index) { long a = nio_get_Long(this, index, limit()); return a; } final public ShortBuffer putLong(int index, long value) { nio_put_Long(this, index, limit(), value); return this; };
188 final public float getFloat() { float a = nio_get_Float(this, position(), limit()); inc_pos(4); return a; } final public ShortBuffer putFloat(float value) { nio_put_Float(this, position(), limit(), value); inc_pos(4); return this; } final public float getFloat(int index) { float a = nio_get_Float(this, index, limit()); return a; } final public ShortBuffer putFloat(int index, float value) { nio_put_Float(this, index, limit(), value); return this; };
189 final public double getDouble() { double a = nio_get_Double(this, position(), limit()); inc_pos(8); return a; } final public ShortBuffer putDouble(double value) { nio_put_Double(this, position(), limit(), value); inc_pos(8); return this; } final public double getDouble(int index) { double a = nio_get_Double(this, index, limit()); return a; } final public ShortBuffer putDouble(int index, double value) { nio_put_Double(this, index, limit(), value); return this; };