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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/**
* Copyright 2014 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.
*/
package com.jogamp.common.util;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import org.junit.Assert;
import org.junit.Test;
import com.jogamp.common.nio.Buffers;
import com.jogamp.junit.util.SingletonJunitCase;
import static com.jogamp.common.util.BitDemoData.*;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
/**
* Test {@link Bitstream} w/ int16 read/write access w/ semantics
* as well as with aligned and unaligned access.
* <ul>
* <li>{@link Bitstream#readUInt16(boolean)}</li>
* <li>{@link Bitstream#writeInt16(boolean, short)}</li>
* </ul>
*/
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestBitstream03 extends SingletonJunitCase {
@Test
public void test01Int16BitsAligned() throws IOException {
test01Int16BitsImpl(null);
test01Int16BitsImpl(ByteOrder.BIG_ENDIAN);
test01Int16BitsImpl(ByteOrder.LITTLE_ENDIAN);
}
void test01Int16BitsImpl(final ByteOrder byteOrder) throws IOException {
test01Int16BitsAlignedImpl(byteOrder, (short)0);
test01Int16BitsAlignedImpl(byteOrder, (short)1);
test01Int16BitsAlignedImpl(byteOrder, (short)7);
test01Int16BitsAlignedImpl(byteOrder, (short)0x0fff);
test01Int16BitsAlignedImpl(byteOrder, Short.MIN_VALUE);
test01Int16BitsAlignedImpl(byteOrder, Short.MAX_VALUE);
test01Int16BitsAlignedImpl(byteOrder, (short)0xffff);
}
void test01Int16BitsAlignedImpl(final ByteOrder byteOrder, final short val16) throws IOException {
// Test with buffer defined value
final ByteBuffer bb = ByteBuffer.allocate(Buffers.SIZEOF_SHORT);
if( null != byteOrder ) {
bb.order(byteOrder);
}
final boolean bigEndian = ByteOrder.BIG_ENDIAN == bb.order();
System.err.println("XXX Test01Int16BitsAligned: byteOrder "+byteOrder+" (bigEndian "+bigEndian+"), value "+val16+", "+toHexBinaryString(val16, 16));
bb.putShort(0, val16);
dumpData("TestData.1: ", bb, 0, 2);
final Bitstream.ByteBufferStream bbs = new Bitstream.ByteBufferStream(bb);
final Bitstream<ByteBuffer> bs = new Bitstream<ByteBuffer>(bbs, false /* outputMode */);
{
final short r16 = (short) bs.readUInt16(bigEndian);
System.err.println("Read16.1 "+r16+", "+toHexBinaryString(r16, 16));
Assert.assertEquals(val16, r16);
}
// Test with written bitstream value
bs.setStream(bs.getSubStream(), true /* outputMode */);
bs.writeInt16(bigEndian, val16);
bs.setStream(bs.getSubStream(), false /* outputMode */); // switch to input-mode, implies flush()
dumpData("TestData.2: ", bb, 0, 2);
{
final short r16 = (short) bs.readUInt16(bigEndian);
System.err.println("Read16.2 "+r16+", "+toHexBinaryString(r16, 16));
Assert.assertEquals(val16, r16);
}
}
@Test
public void test02Int16BitsUnaligned() throws IOException {
test02Int16BitsUnalignedImpl(null);
test02Int16BitsUnalignedImpl(ByteOrder.BIG_ENDIAN);
test02Int16BitsUnalignedImpl(ByteOrder.LITTLE_ENDIAN);
}
void test02Int16BitsUnalignedImpl(final ByteOrder byteOrder) throws IOException {
test02Int16BitsUnalignedImpl(byteOrder, 0);
test02Int16BitsUnalignedImpl(byteOrder, 1);
test02Int16BitsUnalignedImpl(byteOrder, 7);
test02Int16BitsUnalignedImpl(byteOrder, 8);
test02Int16BitsUnalignedImpl(byteOrder, 15);
test02Int16BitsUnalignedImpl(byteOrder, 24);
test02Int16BitsUnalignedImpl(byteOrder, 25);
}
void test02Int16BitsUnalignedImpl(final ByteOrder byteOrder, final int preBits) throws IOException {
test02Int16BitsUnalignedImpl(byteOrder, preBits, (short)0);
test02Int16BitsUnalignedImpl(byteOrder, preBits, (short)1);
test02Int16BitsUnalignedImpl(byteOrder, preBits, (short)7);
test02Int16BitsUnalignedImpl(byteOrder, preBits, (short)0x0fff);
test02Int16BitsUnalignedImpl(byteOrder, preBits, Short.MIN_VALUE);
test02Int16BitsUnalignedImpl(byteOrder, preBits, Short.MAX_VALUE);
test02Int16BitsUnalignedImpl(byteOrder, preBits, (short)0xffff);
}
void test02Int16BitsUnalignedImpl(final ByteOrder byteOrder, final int preBits, final short val16) throws IOException {
final int preBytes = ( preBits + 7 ) >>> 3;
final int byteCount = preBytes + Buffers.SIZEOF_SHORT;
final ByteBuffer bb = ByteBuffer.allocate(byteCount);
if( null != byteOrder ) {
bb.order(byteOrder);
}
final boolean bigEndian = ByteOrder.BIG_ENDIAN == bb.order();
System.err.println("XXX Test02Int16BitsUnaligned: byteOrder "+byteOrder+" (bigEndian "+bigEndian+"), preBits "+preBits+", value "+val16+", "+toHexBinaryString(val16, 16));
// Test with written bitstream value
final Bitstream.ByteBufferStream bbs = new Bitstream.ByteBufferStream(bb);
final Bitstream<ByteBuffer> bs = new Bitstream<ByteBuffer>(bbs, true /* outputMode */);
bs.writeBits31(preBits, 0);
bs.writeInt16(bigEndian, val16);
bs.setStream(bs.getSubStream(), false /* outputMode */); // switch to input-mode, implies flush()
dumpData("TestData.1: ", bb, 0, byteCount);
final int rPre = (short) bs.readBits31(preBits);
final short r16 = (short) bs.readUInt16(bigEndian);
System.err.println("ReadPre "+rPre+", "+toBinaryString(rPre, preBits));
System.err.println("Read16 "+r16+", "+toHexBinaryString(r16, 16));
Assert.assertEquals(val16, r16);
}
public static void main(final String args[]) throws IOException {
final String tstname = TestBitstream03.class.getName();
org.junit.runner.JUnitCore.main(tstname);
}
}
|
