1 /*
2 * Copyright (c) 1995, 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
186 * the JNI field and method ids used in the native portion of
187 * their implementation.
188 *
189 * Since the use and storage of these ids is done by the
190 * implementation libraries, the implementation of these method is
191 * provided by the particular AWT implementations (for example,
192 * "Toolkit"s/Peer), such as Motif, Microsoft Windows, or Tiny. The
193 * problem is that this means that the native libraries must be
194 * loaded by the java.* classes, which do not necessarily know the
195 * names of the libraries to load. A better way of doing this
196 * would be to provide a separate library which defines java.awt.*
197 * initIDs, and exports the relevant symbols out to the
198 * implementation libraries.
199 *
200 * For now, we know it's done by the implementation, and we assume
201 * that the name of the library is "awt". -br.
202 */
203 private static boolean loaded = false;
204 static void loadLibraries() {
205 if (!loaded) {
206 java.security.AccessController.doPrivileged(
207 new java.security.PrivilegedAction<Void>() {
208 public Void run() {
209 System.loadLibrary("awt");
210 return null;
211 }
212 });
213 loaded = true;
214 }
215 }
216 private static native void initIDs();
217 static {
218 /* ensure that the proper libraries are loaded */
219 loadLibraries();
220 initIDs();
221 }
222 private static ColorModel RGBdefault;
223
224 /**
225 * Returns a {@code DirectColorModel} that describes the default
226 * format for integer RGB values used in many of the methods in the
227 * AWT image interfaces for the convenience of the programmer.
228 * The color space is the default {@link ColorSpace}, sRGB.
229 * The format for the RGB values is an integer with 8 bits
230 * each of alpha, red, green, and blue color components ordered
231 * correspondingly from the most significant byte to the least
232 * significant byte, as in: 0xAARRGGBB. Color components are
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1 /*
2 * Copyright (c) 1995, 2019, 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
186 * the JNI field and method ids used in the native portion of
187 * their implementation.
188 *
189 * Since the use and storage of these ids is done by the
190 * implementation libraries, the implementation of these method is
191 * provided by the particular AWT implementations (for example,
192 * "Toolkit"s/Peer), such as Motif, Microsoft Windows, or Tiny. The
193 * problem is that this means that the native libraries must be
194 * loaded by the java.* classes, which do not necessarily know the
195 * names of the libraries to load. A better way of doing this
196 * would be to provide a separate library which defines java.awt.*
197 * initIDs, and exports the relevant symbols out to the
198 * implementation libraries.
199 *
200 * For now, we know it's done by the implementation, and we assume
201 * that the name of the library is "awt". -br.
202 */
203 private static boolean loaded = false;
204 static void loadLibraries() {
205 if (!loaded) {
206 jdk.internal.access.SharedSecrets.getJavaLangAccess().loadLibrary("awt");
207 loaded = true;
208 }
209 }
210 private static native void initIDs();
211 static {
212 /* ensure that the proper libraries are loaded */
213 loadLibraries();
214 initIDs();
215 }
216 private static ColorModel RGBdefault;
217
218 /**
219 * Returns a {@code DirectColorModel} that describes the default
220 * format for integer RGB values used in many of the methods in the
221 * AWT image interfaces for the convenience of the programmer.
222 * The color space is the default {@link ColorSpace}, sRGB.
223 * The format for the RGB values is an integer with 8 bits
224 * each of alpha, red, green, and blue color components ordered
225 * correspondingly from the most significant byte to the least
226 * significant byte, as in: 0xAARRGGBB. Color components are
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