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
|
/*
* Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 6782574
* @summary Test verifies that incorrect sample masks are correctly handled
* by the constructor of the SinglePixelPackedSampleModel class
* and do not cause internal error in the medialib glue code.
*
* @run main IncorrectSampleMaskTest
*/
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImageOp;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.DataBufferInt;
import java.awt.image.DataBufferUShort;
import java.awt.image.Raster;
import java.awt.image.RasterOp;
import java.awt.image.WritableRaster;
import java.awt.image.SinglePixelPackedSampleModel;
public class IncorrectSampleMaskTest {
public static void main(String[] args) {
int[] dataTypes = new int[] {
DataBuffer.TYPE_BYTE,
DataBuffer.TYPE_USHORT,
DataBuffer.TYPE_INT };
for (int type : dataTypes) {
doTest(type);
}
}
private static final int w = 100;
private static final int h = 100;
private static AffineTransform at =
AffineTransform.getScaleInstance(0.5, 0.5);
private static RasterOp op =
new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
private static void doTest(int dataType) {
int maxSize = DataBuffer.getDataTypeSize(dataType);
System.out.println("Type size: " + maxSize);
int theMask = (int)(1L << (maxSize + 2)) - 1;
System.out.printf("theMask=%x\n", theMask);
SinglePixelPackedSampleModel sm =
new SinglePixelPackedSampleModel(dataType, w, h,
new int[] { theMask });
int[] sampleSize = sm.getSampleSize();
for (int s : sampleSize) {
if (s > maxSize) {
throw new RuntimeException("Test failed: sample size is too big:" + s);
}
}
System.out.println("Test medialib...");
DataBuffer buf = createDataBuffer(dataType);
WritableRaster wr = Raster.createWritableRaster(sm, buf, null);
op.filter(wr, null);
System.out.println("Test PASSED.");
}
private static DataBuffer createDataBuffer(int type) {
switch (type) {
case DataBuffer.TYPE_BYTE: {
byte[] buf = new byte[w * h];
return new DataBufferByte(buf, buf.length);
}
case DataBuffer.TYPE_USHORT: {
short[] buf = new short[w * h];
return new DataBufferUShort(buf, buf.length);
}
case DataBuffer.TYPE_INT: {
int[] buf = new int[w * h];
return new DataBufferInt(buf, buf.length);
}
default :
throw new RuntimeException("Unsupported data type.");
}
}
}
|
