1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
/*
* Created on Saturday, March 27 2010 11:55
*/
package com.jogamp.common.nio;
import com.jogamp.common.os.*;
import java.nio.ByteBuffer;
/**
* Hardware independent container for native pointer arrays.
*
* The native values (NIO direct ByteBuffer) might be 32bit or 64bit wide,
* depending of the CPU pointer width.
*
* @author Michael Bien
* @author Sven Gothel
*/
public abstract class AbstractLongBuffer<B extends AbstractLongBuffer> extends AbstractBuffer<B> {
protected long[] backup;
static {
NativeLibrary.ensureNativeLibLoaded();
}
protected AbstractLongBuffer(ByteBuffer bb, int elementSize) {
super(bb, elementSize);
backup = new long[capacity];
}
final void updateBackup() {
for (int i = 0; i < capacity; i++) {
backup[i] = get(i);
}
}
@Override
public final boolean hasArray() {
return true;
}
public final long[] array() {
return backup;
}
/** Absolute get method. Get the pointer value at the given index */
public abstract long get(int idx);
/** Relative get method. Get the pointer value at the current position and increment the position by one. */
public final long get() {
long r = get(position);
position++;
return r;
}
/**
* Relative bulk get method. Copy the pointer values <code> [ position .. position+length [</code>
* to the destination array <code> [ dest[offset] .. dest[offset+length] [ </code>
* and increment the position by <code>length</code>. */
public final AbstractLongBuffer get(long[] dest, int offset, int length) {
if (dest.length<offset+length) {
throw new IndexOutOfBoundsException();
}
if (remaining() < length) {
throw new IndexOutOfBoundsException();
}
while(length>0) {
dest[offset++] = get(position++);
length--;
}
return this;
}
/** Absolute put method. Put the pointer value at the given index */
public abstract B put(int index, long value);
/** Relative put method. Put the pointer value at the current position and increment the position by one. */
public final B put(long value) {
put(position, value);
position++;
return (B) this;
}
/**
* Relative bulk put method. Put the pointer values <code> [ src[offset] .. src[offset+length] [</code>
* at the current position and increment the position by <code>length</code>. */
public final AbstractLongBuffer put(long[] src, int offset, int length) {
if (src.length<offset+length) {
throw new IndexOutOfBoundsException();
}
if (remaining() < length) {
throw new IndexOutOfBoundsException();
}
while(length>0) {
put(position++, src[offset++]);
length--;
}
return this;
}
/**
* Relative bulk get method. Copy the source values <code> src[position .. capacity] [</code>
* to this buffer and increment the position by <code>capacity-position</code>. */
public B put(B src) {
if (remaining() < src.remaining()) {
throw new IndexOutOfBoundsException();
}
while (src.hasRemaining()) {
put(src.get());
}
return (B) this;
}
}
|
