1 /*
2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
43 * are treated as unsigned values.
44 * <p>
45 * <a id="optimizations">
46 * Note that some implementations may function more efficiently
47 * if they can maintain control over how the data for an image is
48 * stored.
49 * For example, optimizations such as caching an image in video
50 * memory require that the implementation track all modifications
51 * to that data.
52 * Other implementations may operate better if they can store the
53 * data in locations other than a Java array.
54 * To maintain optimum compatibility with various optimizations
55 * it is best to avoid constructors and methods which expose the
56 * underlying storage as a Java array as noted below in the
57 * documentation for those methods.
58 * </a>
59 */
60 public final class DataBufferUShort extends DataBuffer
61 {
62 /** The default data bank. */
63 short data[];
64
65 /** All data banks */
66 short bankdata[][];
67
68 /**
69 * Constructs an unsigned-short based {@code DataBuffer} with a single bank and the
70 * specified size.
71 *
72 * @param size The size of the {@code DataBuffer}.
73 */
74 public DataBufferUShort(int size) {
75 super(STABLE, TYPE_USHORT, size);
76 data = new short[size];
77 bankdata = new short[1][];
78 bankdata[0] = data;
79 }
80
81 /**
82 * Constructs an unsigned-short based {@code DataBuffer} with the specified number of
83 * banks, all of which are the specified size.
84 *
85 * @param size The size of the banks in the {@code DataBuffer}.
86 * @param numBanks The number of banks in the a {@code DataBuffer}.
92 bankdata[i] = new short[size];
93 }
94 data = bankdata[0];
95 }
96
97 /**
98 * Constructs an unsigned-short based {@code DataBuffer} with a single bank
99 * using the specified array.
100 * Only the first {@code size} elements should be used by accessors of
101 * this {@code DataBuffer}. {@code dataArray} must be large enough to
102 * hold {@code size} elements.
103 * <p>
104 * Note that {@code DataBuffer} objects created by this constructor
105 * may be incompatible with <a href="#optimizations">performance
106 * optimizations</a> used by some implementations (such as caching
107 * an associated image in video memory).
108 *
109 * @param dataArray The unsigned-short array for the {@code DataBuffer}.
110 * @param size The size of the {@code DataBuffer} bank.
111 */
112 public DataBufferUShort(short dataArray[], int size) {
113 super(UNTRACKABLE, TYPE_USHORT, size);
114 if (dataArray == null) {
115 throw new NullPointerException("dataArray is null");
116 }
117 data = dataArray;
118 bankdata = new short[1][];
119 bankdata[0] = data;
120 }
121
122 /**
123 * Constructs an unsigned-short based {@code DataBuffer} with a single bank
124 * using the specified array, size, and offset. {@code dataArray} must have at
125 * least {@code offset} + {@code size} elements. Only elements
126 * {@code offset} through {@code offset} + {@code size} - 1 should
127 * be used by accessors of this {@code DataBuffer}.
128 * <p>
129 * Note that {@code DataBuffer} objects created by this constructor
130 * may be incompatible with <a href="#optimizations">performance
131 * optimizations</a> used by some implementations (such as caching
132 * an associated image in video memory).
133 *
134 * @param dataArray The unsigned-short array for the {@code DataBuffer}.
135 * @param size The size of the {@code DataBuffer} bank.
136 * @param offset The offset into the {@code dataArray}.
137 */
138 public DataBufferUShort(short dataArray[], int size, int offset) {
139 super(UNTRACKABLE, TYPE_USHORT, size, 1, offset);
140 if (dataArray == null) {
141 throw new NullPointerException("dataArray is null");
142 }
143 if ((size+offset) > dataArray.length) {
144 throw new IllegalArgumentException("Length of dataArray is less "+
145 " than size+offset.");
146 }
147 data = dataArray;
148 bankdata = new short[1][];
149 bankdata[0] = data;
150 }
151
152 /**
153 * Constructs an unsigned-short based {@code DataBuffer} with the specified arrays.
154 * The number of banks will be equal to {@code dataArray.length}.
155 * Only the first {@code size} elements of each array should be used by
156 * accessors of this {@code DataBuffer}.
157 * <p>
158 * Note that {@code DataBuffer} objects created by this constructor
159 * may be incompatible with <a href="#optimizations">performance
160 * optimizations</a> used by some implementations (such as caching
161 * an associated image in video memory).
162 *
163 * @param dataArray The unsigned-short arrays for the {@code DataBuffer}.
164 * @param size The size of the banks in the {@code DataBuffer}.
165 */
166 public DataBufferUShort(short dataArray[][], int size) {
167 super(UNTRACKABLE, TYPE_USHORT, size, dataArray.length);
168 if (dataArray == null) {
169 throw new NullPointerException("dataArray is null");
170 }
171 for (int i=0; i < dataArray.length; i++) {
172 if (dataArray[i] == null) {
173 throw new NullPointerException("dataArray["+i+"] is null");
174 }
175 }
176
177 bankdata = dataArray.clone();
178 data = bankdata[0];
179 }
180
181 /**
182 * Constructs an unsigned-short based {@code DataBuffer} with specified arrays,
183 * size, and offsets.
184 * The number of banks is equal to {@code dataArray.length}. Each array must
185 * be at least as large as {@code size} + the corresponding offset. There must
186 * be an entry in the offset array for each {@code dataArray} entry. For each
187 * bank, only elements {@code offset} through
188 * {@code offset} + {@code size} - 1 should be
189 * used by accessors of this {@code DataBuffer}.
190 * <p>
191 * Note that {@code DataBuffer} objects created by this constructor
192 * may be incompatible with <a href="#optimizations">performance
193 * optimizations</a> used by some implementations (such as caching
194 * an associated image in video memory).
195 *
196 * @param dataArray The unsigned-short arrays for the {@code DataBuffer}.
197 * @param size The size of the banks in the {@code DataBuffer}.
198 * @param offsets The offsets into each array.
199 */
200 public DataBufferUShort(short dataArray[][], int size, int offsets[]) {
201 super(UNTRACKABLE, TYPE_USHORT, size, dataArray.length, offsets);
202 if (dataArray == null) {
203 throw new NullPointerException("dataArray is null");
204 }
205 for (int i=0; i < dataArray.length; i++) {
206 if (dataArray[i] == null) {
207 throw new NullPointerException("dataArray["+i+"] is null");
208 }
209 if ((size+offsets[i]) > dataArray[i].length) {
210 throw new IllegalArgumentException("Length of dataArray["+i+
211 "] is less than size+"+
212 "offsets["+i+"].");
213 }
214
215 }
216 bankdata = dataArray.clone();
217 data = bankdata[0];
218 }
219
220 /**
|
1 /*
2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
43 * are treated as unsigned values.
44 * <p>
45 * <a id="optimizations">
46 * Note that some implementations may function more efficiently
47 * if they can maintain control over how the data for an image is
48 * stored.
49 * For example, optimizations such as caching an image in video
50 * memory require that the implementation track all modifications
51 * to that data.
52 * Other implementations may operate better if they can store the
53 * data in locations other than a Java array.
54 * To maintain optimum compatibility with various optimizations
55 * it is best to avoid constructors and methods which expose the
56 * underlying storage as a Java array as noted below in the
57 * documentation for those methods.
58 * </a>
59 */
60 public final class DataBufferUShort extends DataBuffer
61 {
62 /** The default data bank. */
63 short[] data;
64
65 /** All data banks */
66 short[][] bankdata;
67
68 /**
69 * Constructs an unsigned-short based {@code DataBuffer} with a single bank and the
70 * specified size.
71 *
72 * @param size The size of the {@code DataBuffer}.
73 */
74 public DataBufferUShort(int size) {
75 super(STABLE, TYPE_USHORT, size);
76 data = new short[size];
77 bankdata = new short[1][];
78 bankdata[0] = data;
79 }
80
81 /**
82 * Constructs an unsigned-short based {@code DataBuffer} with the specified number of
83 * banks, all of which are the specified size.
84 *
85 * @param size The size of the banks in the {@code DataBuffer}.
86 * @param numBanks The number of banks in the a {@code DataBuffer}.
92 bankdata[i] = new short[size];
93 }
94 data = bankdata[0];
95 }
96
97 /**
98 * Constructs an unsigned-short based {@code DataBuffer} with a single bank
99 * using the specified array.
100 * Only the first {@code size} elements should be used by accessors of
101 * this {@code DataBuffer}. {@code dataArray} must be large enough to
102 * hold {@code size} elements.
103 * <p>
104 * Note that {@code DataBuffer} objects created by this constructor
105 * may be incompatible with <a href="#optimizations">performance
106 * optimizations</a> used by some implementations (such as caching
107 * an associated image in video memory).
108 *
109 * @param dataArray The unsigned-short array for the {@code DataBuffer}.
110 * @param size The size of the {@code DataBuffer} bank.
111 */
112 public DataBufferUShort(short[] dataArray, int size) {
113 super(UNTRACKABLE, TYPE_USHORT, size);
114 if (dataArray == null) {
115 throw new NullPointerException("dataArray is null");
116 }
117 data = dataArray;
118 bankdata = new short[1][];
119 bankdata[0] = data;
120 }
121
122 /**
123 * Constructs an unsigned-short based {@code DataBuffer} with a single bank
124 * using the specified array, size, and offset. {@code dataArray} must have at
125 * least {@code offset} + {@code size} elements. Only elements
126 * {@code offset} through {@code offset} + {@code size} - 1 should
127 * be used by accessors of this {@code DataBuffer}.
128 * <p>
129 * Note that {@code DataBuffer} objects created by this constructor
130 * may be incompatible with <a href="#optimizations">performance
131 * optimizations</a> used by some implementations (such as caching
132 * an associated image in video memory).
133 *
134 * @param dataArray The unsigned-short array for the {@code DataBuffer}.
135 * @param size The size of the {@code DataBuffer} bank.
136 * @param offset The offset into the {@code dataArray}.
137 */
138 public DataBufferUShort(short[] dataArray, int size, int offset) {
139 super(UNTRACKABLE, TYPE_USHORT, size, 1, offset);
140 if (dataArray == null) {
141 throw new NullPointerException("dataArray is null");
142 }
143 if ((size+offset) > dataArray.length) {
144 throw new IllegalArgumentException("Length of dataArray is less "+
145 " than size+offset.");
146 }
147 data = dataArray;
148 bankdata = new short[1][];
149 bankdata[0] = data;
150 }
151
152 /**
153 * Constructs an unsigned-short based {@code DataBuffer} with the specified arrays.
154 * The number of banks will be equal to {@code dataArray.length}.
155 * Only the first {@code size} elements of each array should be used by
156 * accessors of this {@code DataBuffer}.
157 * <p>
158 * Note that {@code DataBuffer} objects created by this constructor
159 * may be incompatible with <a href="#optimizations">performance
160 * optimizations</a> used by some implementations (such as caching
161 * an associated image in video memory).
162 *
163 * @param dataArray The unsigned-short arrays for the {@code DataBuffer}.
164 * @param size The size of the banks in the {@code DataBuffer}.
165 */
166 public DataBufferUShort(short[][] dataArray, int size) {
167 super(UNTRACKABLE, TYPE_USHORT, size, dataArray.length);
168 if (dataArray == null) {
169 throw new NullPointerException("dataArray is null");
170 }
171 for (int i=0; i < dataArray.length; i++) {
172 if (dataArray[i] == null) {
173 throw new NullPointerException("dataArray["+i+"] is null");
174 }
175 }
176
177 bankdata = dataArray.clone();
178 data = bankdata[0];
179 }
180
181 /**
182 * Constructs an unsigned-short based {@code DataBuffer} with specified arrays,
183 * size, and offsets.
184 * The number of banks is equal to {@code dataArray.length}. Each array must
185 * be at least as large as {@code size} + the corresponding offset. There must
186 * be an entry in the offset array for each {@code dataArray} entry. For each
187 * bank, only elements {@code offset} through
188 * {@code offset} + {@code size} - 1 should be
189 * used by accessors of this {@code DataBuffer}.
190 * <p>
191 * Note that {@code DataBuffer} objects created by this constructor
192 * may be incompatible with <a href="#optimizations">performance
193 * optimizations</a> used by some implementations (such as caching
194 * an associated image in video memory).
195 *
196 * @param dataArray The unsigned-short arrays for the {@code DataBuffer}.
197 * @param size The size of the banks in the {@code DataBuffer}.
198 * @param offsets The offsets into each array.
199 */
200 public DataBufferUShort(short[][] dataArray, int size, int[] offsets) {
201 super(UNTRACKABLE, TYPE_USHORT, size, dataArray.length, offsets);
202 if (dataArray == null) {
203 throw new NullPointerException("dataArray is null");
204 }
205 for (int i=0; i < dataArray.length; i++) {
206 if (dataArray[i] == null) {
207 throw new NullPointerException("dataArray["+i+"] is null");
208 }
209 if ((size+offsets[i]) > dataArray[i].length) {
210 throw new IllegalArgumentException("Length of dataArray["+i+
211 "] is less than size+"+
212 "offsets["+i+"].");
213 }
214
215 }
216 bankdata = dataArray.clone();
217 data = bankdata[0];
218 }
219
220 /**
|