1 /*
2 * Copyright (c) 2012, 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
23 * questions.
24 */
25
26 package sun.awt;
27
28 import java.awt.GraphicsConfiguration;
29 import java.awt.GraphicsDevice;
30 import java.awt.Window;
31 import java.awt.AWTPermission;
32 import java.awt.DisplayMode;
33
34 import sun.java2d.opengl.CGLGraphicsConfig;
35
36 public final class CGraphicsDevice extends GraphicsDevice {
37
38 // CoreGraphics display ID
39 private final int displayID;
40
41 // Array of all GraphicsConfig instances for this device
42 private final GraphicsConfiguration[] configs;
43
44 // Default config (temporarily hard coded)
45 private final int DEFAULT_CONFIG = 0;
46
47 private static AWTPermission fullScreenExclusivePermission;
48
49 // Save/restore DisplayMode for the Full Screen mode
50 private DisplayMode originalMode;
51
52 public CGraphicsDevice(int displayID) {
53 this.displayID = displayID;
54 configs = new GraphicsConfiguration[] {
55 CGLGraphicsConfig.getConfig(this, 0)
56 };
57 }
58
59 /**
60 * @return CoreGraphics display id.
61 */
62 public int getCoreGraphicsScreen() {
63 return displayID;
64 }
65
66 /**
67 * Return a list of all configurations.
68 */
69 @Override
70 public GraphicsConfiguration[] getConfigurations() {
71 return configs.clone();
72 }
73
74 /**
75 * Return the default configuration.
76 */
77 @Override
78 public GraphicsConfiguration getDefaultConfiguration() {
79 return configs[DEFAULT_CONFIG];
80 }
81
82 /**
83 * Return a human-readable screen description.
84 */
85 @Override
86 public String getIDstring() {
87 return "Display " + this.displayID;
88 }
89
90 /**
91 * Returns the type of the graphics device.
92 * @see #TYPE_RASTER_SCREEN
93 * @see #TYPE_PRINTER
94 * @see #TYPE_IMAGE_BUFFER
95 */
96 @Override
97 public int getType() {
98 return TYPE_RASTER_SCREEN;
99 }
100
101 public double getXResolution() {
102 return nativeGetXResolution(displayID);
103 }
104
105 public double getYResolution() {
106 return nativeGetYResolution(displayID);
107 }
108
109 private static native double nativeGetXResolution(int displayID);
110 private static native double nativeGetYResolution(int displayID);
111
112 /**
113 * Enters full-screen mode, or returns to windowed mode.
114 */
115 @Override
116 public synchronized void setFullScreenWindow(Window w) {
117 Window old = getFullScreenWindow();
118 if (w == old) {
119 return;
120 }
121
122 boolean fsSupported = isFullScreenSupported();
123
124 if (fsSupported && old != null) {
125 // enter windowed mode (and restore original display mode)
126 exitFullScreenExclusive(old);
127 if (originalMode != null) {
128 setDisplayMode(originalMode);
129 originalMode = null;
130 }
131 }
132
133 super.setFullScreenWindow(w);
134
135 if (fsSupported && w != null) {
136 if (isDisplayChangeSupported()) {
137 originalMode = getDisplayMode();
138 }
139 // enter fullscreen mode
140 enterFullScreenExclusive(w);
141 }
142 }
143
144 /**
145 * Returns true if this GraphicsDevice supports
146 * full-screen exclusive mode and false otherwise.
147 */
148 @Override
149 public boolean isFullScreenSupported() {
150 return isFSExclusiveModeAllowed();
151 }
152
153 private static boolean isFSExclusiveModeAllowed() {
154 SecurityManager security = System.getSecurityManager();
155 if (security != null) {
156 if (fullScreenExclusivePermission == null) {
157 fullScreenExclusivePermission =
158 new AWTPermission("fullScreenExclusive");
159 }
160 try {
161 security.checkPermission(fullScreenExclusivePermission);
162 } catch (SecurityException e) {
163 return false;
164 }
165 }
166 return true;
167 }
168
169 private static void enterFullScreenExclusive(Window w) {
170 FullScreenCapable peer = (FullScreenCapable)w.getPeer();
171 if (peer != null) {
172 peer.enterFullScreenMode();
173 }
174 }
175
176 private static void exitFullScreenExclusive(Window w) {
177 FullScreenCapable peer = (FullScreenCapable)w.getPeer();
178 if (peer != null) {
179 peer.exitFullScreenMode();
180 }
181 }
182
183 @Override
184 public boolean isDisplayChangeSupported() {
185 return true;
186 }
187
188 @Override
189 public void setDisplayMode(DisplayMode dm) {
190 if (dm == null) {
191 throw new IllegalArgumentException("Invalid display mode");
192 }
193 nativeSetDisplayMode(displayID, dm.getWidth(), dm.getHeight(), dm.getBitDepth(), dm.getRefreshRate());
194 if (isFullScreenSupported() && getFullScreenWindow() != null) {
195 getFullScreenWindow().setSize(dm.getWidth(), dm.getHeight());
196 }
197 }
198
199 @Override
200 public DisplayMode getDisplayMode() {
201 return nativeGetDisplayMode(displayID);
202 }
203
204 @Override
205 public DisplayMode[] getDisplayModes() {
206 return nativeGetDisplayModes(displayID);
207 }
208
209 private native void nativeSetDisplayMode(int displayID, int w, int h, int bpp, int refrate);
210
211 private native DisplayMode nativeGetDisplayMode(int displayID);
212
213 private native DisplayMode[] nativeGetDisplayModes(int displayID);
214 }