J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.awt; |
| 27 | |
| 28 | import java.awt.AWTPermission; |
| 29 | import java.awt.GraphicsDevice; |
| 30 | import java.awt.GraphicsConfiguration; |
| 31 | import java.awt.GraphicsEnvironment; |
| 32 | import java.awt.DisplayMode; |
| 33 | import java.awt.Frame; |
| 34 | import java.awt.Rectangle; |
| 35 | import java.awt.Window; |
| 36 | import java.awt.image.ColorModel; |
| 37 | import java.util.ArrayList; |
| 38 | import java.util.Vector; |
| 39 | import java.awt.peer.WindowPeer; |
| 40 | import sun.awt.windows.WWindowPeer; |
| 41 | import sun.java2d.d3d.D3DContext; |
| 42 | import sun.java2d.opengl.WGLGraphicsConfig; |
| 43 | import sun.java2d.windows.WindowsFlags; |
| 44 | |
| 45 | /** |
| 46 | * This is an implementation of a GraphicsDevice object for a single |
| 47 | * Win32 screen. |
| 48 | * |
| 49 | * @see GraphicsEnvironment |
| 50 | * @see GraphicsConfiguration |
| 51 | */ |
| 52 | public class Win32GraphicsDevice extends GraphicsDevice implements |
| 53 | DisplayChangedListener { |
| 54 | int screen; |
| 55 | ColorModel dynamicColorModel; // updated with dev changes |
| 56 | ColorModel colorModel; // static for device |
| 57 | GraphicsConfiguration[] configs; |
| 58 | GraphicsConfiguration defaultConfig; |
| 59 | boolean offscreenAccelerationEnabled = true; |
| 60 | private D3DContext d3dContext; |
| 61 | |
| 62 | private final String idString; |
| 63 | private final String descString; |
| 64 | // Note that we do not synchronize access to this variable - it doesn't |
| 65 | // really matter if a thread does an operation on graphics device which is |
| 66 | // about to become invalid (or already become) - we are prepared to deal |
| 67 | // with this on the native level. |
| 68 | private boolean valid; |
| 69 | |
| 70 | // keep track of top-level windows on this display |
| 71 | private SunDisplayChanger topLevels = new SunDisplayChanger(); |
| 72 | private static boolean pfDisabled; |
| 73 | private static AWTPermission fullScreenExclusivePermission; |
| 74 | private Rectangle ownerWindowedModeBounds = null; |
| 75 | // the original display mode we had before entering the fullscreen |
| 76 | // mode |
| 77 | private DisplayMode defaultDisplayMode; |
| 78 | |
| 79 | static { |
| 80 | |
| 81 | // 4455041 - Even when ddraw is disabled, ddraw.dll is loaded when |
| 82 | // pixel format calls are made. This causes problems when a Java app |
| 83 | // is run as an NT service. To prevent the loading of ddraw.dll |
| 84 | // completely, sun.awt.nopixfmt should be set as well. Apps which use |
| 85 | // OpenGL w/ Java probably don't want to set this. |
| 86 | String nopixfmt = (String)java.security.AccessController.doPrivileged( |
| 87 | new sun.security.action.GetPropertyAction("sun.awt.nopixfmt")); |
| 88 | pfDisabled = (nopixfmt != null); |
| 89 | initIDs(); |
| 90 | } |
| 91 | |
| 92 | private static native void initIDs(); |
| 93 | |
| 94 | /** |
| 95 | * Acceleration can be disabled due to capabilities of the display |
| 96 | * device discovered during ddraw initialization. This is not the |
| 97 | * same as isDDEnabledOnDevice(), which returns false when ddraw |
| 98 | * was disabled by the user or had problems initializing. |
| 99 | */ |
| 100 | public boolean isOffscreenAccelerationEnabled() { |
| 101 | return offscreenAccelerationEnabled; |
| 102 | } |
| 103 | |
| 104 | native void initDevice(int screen); |
| 105 | |
| 106 | public Win32GraphicsDevice(int screennum) { |
| 107 | this.screen = screennum; |
| 108 | // we cache the strings because we want toString() and getIDstring |
| 109 | // to reflect the original screen number (which may change if the |
| 110 | // device is removed) |
| 111 | idString = "\\Display"+screen; |
| 112 | descString = "Win32GraphicsDevice[screen=" + screen; |
| 113 | valid = true; |
| 114 | |
| 115 | initDevice(screennum); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Returns the type of the graphics device. |
| 120 | * @see #TYPE_RASTER_SCREEN |
| 121 | * @see #TYPE_PRINTER |
| 122 | * @see #TYPE_IMAGE_BUFFER |
| 123 | */ |
| 124 | public int getType() { |
| 125 | return TYPE_RASTER_SCREEN; |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Returns the Win32 screen of the device. |
| 130 | */ |
| 131 | public int getScreen() { |
| 132 | return screen; |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * Returns whether this is a valid devicie. Device can become |
| 137 | * invalid as a result of device removal event. |
| 138 | */ |
| 139 | boolean isValid() { |
| 140 | return valid; |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * Called from native code when the device was removed. |
| 145 | * |
| 146 | * @param defaultScreen the current default screen |
| 147 | */ |
| 148 | void invalidate(int defaultScreen) { |
| 149 | valid = false; |
| 150 | screen = defaultScreen; |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Returns the identification string associated with this graphics |
| 155 | * device. |
| 156 | */ |
| 157 | public String getIDstring() { |
| 158 | return idString; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | /** |
| 163 | * Returns all of the graphics |
| 164 | * configurations associated with this graphics device. |
| 165 | */ |
| 166 | public GraphicsConfiguration[] getConfigurations() { |
| 167 | if (configs==null) { |
| 168 | if (WindowsFlags.isOGLEnabled() && isDefaultDevice()) { |
| 169 | defaultConfig = getDefaultConfiguration(); |
| 170 | if (defaultConfig != null) { |
| 171 | configs = new GraphicsConfiguration[1]; |
| 172 | configs[0] = defaultConfig; |
| 173 | return configs; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | int max = getMaxConfigs(screen); |
| 178 | int defaultPixID = getDefaultPixID(screen); |
| 179 | Vector v = new Vector( max ); |
| 180 | if (defaultPixID == 0) { |
| 181 | // Workaround for failing GDI calls, or if DirectDraw |
| 182 | // is disabled |
| 183 | defaultConfig = Win32GraphicsConfig.getConfig(this, |
| 184 | defaultPixID); |
| 185 | v.addElement(defaultConfig); |
| 186 | } |
| 187 | else { |
| 188 | for (int i = 1; i <= max; i++) { |
| 189 | if (isPixFmtSupported(i, screen)) { |
| 190 | if (i == defaultPixID) { |
| 191 | defaultConfig = Win32GraphicsConfig.getConfig( |
| 192 | this, i); |
| 193 | v.addElement(defaultConfig); |
| 194 | } |
| 195 | else { |
| 196 | v.addElement(Win32GraphicsConfig.getConfig( |
| 197 | this, i)); |
| 198 | } |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | configs = new GraphicsConfiguration[v.size()]; |
| 203 | v.copyInto(configs); |
| 204 | } |
| 205 | return configs; |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Returns the maximum number of graphics configurations available, or 1 |
| 210 | * if PixelFormat calls fail or are disabled. |
| 211 | * This number is less than or equal to the number of graphics |
| 212 | * configurations supported. |
| 213 | */ |
| 214 | protected int getMaxConfigs(int screen) { |
| 215 | if (pfDisabled) { |
| 216 | return 1; |
| 217 | } else { |
| 218 | return getMaxConfigsImpl(screen); |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | private native int getMaxConfigsImpl(int screen); |
| 223 | |
| 224 | /** |
| 225 | * Returns whether or not the PixelFormat indicated by index is |
| 226 | * supported. Supported PixelFormats support drawing to a Window |
| 227 | * (PFD_DRAW_TO_WINDOW), support GDI (PFD_SUPPORT_GDI), and in the |
| 228 | * case of an 8-bit format (cColorBits <= 8) uses indexed colors |
| 229 | * (iPixelType == PFD_TYPE_COLORINDEX). |
| 230 | * We use the index 0 to indicate that PixelFormat calls don't work, or |
| 231 | * are disabled. Do not call this function with an index of 0. |
| 232 | * @param index a PixelFormat index |
| 233 | */ |
| 234 | protected native boolean isPixFmtSupported(int index, int screen); |
| 235 | |
| 236 | /** |
| 237 | * Returns the PixelFormatID of the default graphics configuration |
| 238 | * associated with this graphics device, or 0 if PixelFormats calls fail or |
| 239 | * are disabled. |
| 240 | */ |
| 241 | protected int getDefaultPixID(int screen) { |
| 242 | if (pfDisabled) { |
| 243 | return 0; |
| 244 | } else { |
| 245 | return getDefaultPixIDImpl(screen); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Returns the default PixelFormat ID from GDI. Do not call if PixelFormats |
| 251 | * are disabled. |
| 252 | */ |
| 253 | private native int getDefaultPixIDImpl(int screen); |
| 254 | |
| 255 | /** |
| 256 | * Returns the default graphics configuration |
| 257 | * associated with this graphics device. |
| 258 | */ |
| 259 | public GraphicsConfiguration getDefaultConfiguration() { |
| 260 | if (defaultConfig == null) { |
| 261 | // first try to create a WGLGraphicsConfig if OGL is enabled |
| 262 | // REMIND: the WGL code does not yet work properly in multimon |
| 263 | // situations, so we will fallback on GDI if we are not on the |
| 264 | // default device... |
| 265 | if (WindowsFlags.isOGLEnabled() && isDefaultDevice()) { |
| 266 | int defPixID = WGLGraphicsConfig.getDefaultPixFmt(screen); |
| 267 | defaultConfig = WGLGraphicsConfig.getConfig(this, defPixID); |
| 268 | if (WindowsFlags.isOGLVerbose()) { |
| 269 | if (defaultConfig != null) { |
| 270 | System.out.print("OpenGL pipeline enabled"); |
| 271 | } else { |
| 272 | System.out.print("Could not enable OpenGL pipeline"); |
| 273 | } |
| 274 | System.out.println(" for default config on screen " + |
| 275 | screen); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | // Fix for 4669614. Most apps are not concerned with PixelFormats, |
| 280 | // yet we ALWAYS used them for determining ColorModels and such. |
| 281 | // By passing in 0 as the PixelFormatID here, we signal that |
| 282 | // PixelFormats should not be used, thus avoid loading the opengl |
| 283 | // library. Apps concerned with PixelFormats can still use |
| 284 | // GraphicsConfiguration.getConfigurations(). |
| 285 | // Note that calling native pixel format functions tends to cause |
| 286 | // problems between those functions (which are OpenGL-related) |
| 287 | // and our use of DirectX. For example, some Matrox boards will |
| 288 | // crash or hang calling these functions when any app is running |
| 289 | // in DirectX fullscreen mode. So avoiding these calls unless |
| 290 | // absolutely necessary is preferable. |
| 291 | if (defaultConfig == null) { |
| 292 | defaultConfig = Win32GraphicsConfig.getConfig(this, 0); |
| 293 | } |
| 294 | } |
| 295 | return defaultConfig; |
| 296 | } |
| 297 | |
| 298 | public String toString() { |
| 299 | return valid ? descString + "]" : descString + ", removed]"; |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Returns true if this is the default GraphicsDevice for the |
| 304 | * GraphicsEnvironment. |
| 305 | */ |
| 306 | private boolean isDefaultDevice() { |
| 307 | return (this == |
| 308 | GraphicsEnvironment. |
| 309 | getLocalGraphicsEnvironment().getDefaultScreenDevice()); |
| 310 | } |
| 311 | |
| 312 | private native boolean isDDEnabledOnDeviceNative(int screen); |
| 313 | |
| 314 | public D3DContext getD3DContext() { |
| 315 | if (d3dContext == null) { |
| 316 | d3dContext = new D3DContext(this); |
| 317 | } |
| 318 | return d3dContext; |
| 319 | } |
| 320 | |
| 321 | |
| 322 | public boolean isDDEnabledOnDevice() { |
| 323 | return (WindowsFlags.isDDEnabled() && isValid() && |
| 324 | isDDEnabledOnDeviceNative(screen)); |
| 325 | } |
| 326 | |
| 327 | public boolean isD3DEnabledOnDevice() { |
| 328 | // The conditions under which we enable the D3D pipeline for the device: |
| 329 | // - d3d is not disabled via a flag |
| 330 | // - either d3d is forced via property or we're in fullscreen mode |
| 331 | // - the hardware/drivers meet our requirements |
| 332 | return (WindowsFlags.isD3DEnabled() && isValid() && |
| 333 | (WindowsFlags.isD3DSet() || getFullScreenWindow() != null) && |
| 334 | ((getD3DContext().getDeviceCaps() & |
| 335 | D3DContext.J2D_D3D_ENABLED_OK) != 0)); |
| 336 | } |
| 337 | |
| 338 | private static boolean isFSExclusiveModeAllowed() { |
| 339 | SecurityManager security = System.getSecurityManager(); |
| 340 | if (security != null) { |
| 341 | if (fullScreenExclusivePermission == null) { |
| 342 | fullScreenExclusivePermission = |
| 343 | new AWTPermission("fullScreenExclusive"); |
| 344 | } |
| 345 | try { |
| 346 | security.checkPermission(fullScreenExclusivePermission); |
| 347 | } catch (SecurityException e) { |
| 348 | return false; |
| 349 | } |
| 350 | } |
| 351 | return true; |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * We support the exclusive fullscreen mode in both ddraw and |
| 356 | * noddraw modes, so we return true unless we're not allowed to use |
| 357 | * fullscreen mode. |
| 358 | */ |
| 359 | public boolean isFullScreenSupported() { |
| 360 | return isFSExclusiveModeAllowed(); |
| 361 | } |
| 362 | |
| 363 | /** |
| 364 | * Return the owning Frame for a given Window. Used in setFSWindow below |
| 365 | * to set the properties of the owning Frame when a Window goes |
| 366 | * into fullscreen mode. |
| 367 | */ |
| 368 | private Frame getToplevelOwner(Window w) { |
| 369 | Window owner = w; |
| 370 | while (owner != null) { |
| 371 | owner = owner.getOwner(); |
| 372 | if (owner instanceof Frame) { |
| 373 | return (Frame) owner; |
| 374 | } |
| 375 | } |
| 376 | // Should not get here, but return something intelligent just in case |
| 377 | return null; |
| 378 | } |
| 379 | |
| 380 | public synchronized void setFullScreenWindow(Window w) { |
| 381 | Window old = getFullScreenWindow(); |
| 382 | if (w == old) { |
| 383 | return; |
| 384 | } |
| 385 | if (!isFullScreenSupported()) { |
| 386 | super.setFullScreenWindow(w); |
| 387 | return; |
| 388 | } |
| 389 | |
| 390 | // Enter windowed mode. |
| 391 | if (old != null) { |
| 392 | // restore the original display mode |
| 393 | if (defaultDisplayMode != null) { |
| 394 | setDisplayMode(defaultDisplayMode); |
| 395 | // we set the default display mode to null here |
| 396 | // because the default mode could change during |
| 397 | // the life of the application (user can change it through |
| 398 | // the desktop properties dialog, for example), so |
| 399 | // we need to record it every time prior to |
| 400 | // entering the fullscreen mode. |
| 401 | defaultDisplayMode = null; |
| 402 | } |
| 403 | WWindowPeer peer = (WWindowPeer)old.getPeer(); |
| 404 | if (peer != null) { |
| 405 | synchronized(peer) { |
| 406 | peer.destroyBuffers(); |
| 407 | exitFullScreenExclusive(isDDEnabledOnDevice(), |
| 408 | screen, peer); |
| 409 | } |
| 410 | } |
| 411 | /** |
| 412 | * Bug 4933099: There is some funny-business to deal with when this |
| 413 | * method is called with a Window instead of a Frame. See 4836744 |
| 414 | * for more information on this. One side-effect of our workaround |
| 415 | * for the problem is that the owning Frame of a Window may end |
| 416 | * up getting resized during the fullscreen process. When we |
| 417 | * return from fullscreen mode, we should resize the Frame to |
| 418 | * its original size (just like the Window is being resized |
| 419 | * to its original size in GraphicsDevice). |
| 420 | */ |
| 421 | if (!(old instanceof Frame)) { |
| 422 | Frame owner = getToplevelOwner(old); |
| 423 | if (owner != null && ownerWindowedModeBounds != null) { |
| 424 | owner.setBounds(ownerWindowedModeBounds); |
| 425 | } |
| 426 | ownerWindowedModeBounds = null; |
| 427 | } |
| 428 | } |
| 429 | super.setFullScreenWindow(w); |
| 430 | if (w != null) { |
| 431 | // always record the default display mode prior to going |
| 432 | // fullscreen |
| 433 | defaultDisplayMode = getDisplayMode(); |
| 434 | // Bug 4933099 |
| 435 | if (!(w instanceof Frame)) { |
| 436 | Frame owner = getToplevelOwner(w); |
| 437 | if (owner != null) { |
| 438 | ownerWindowedModeBounds = owner.getBounds(); |
| 439 | // These will get set for the native window in |
| 440 | // any case. Set them here so that resetting them |
| 441 | // later actually does the right thing |
| 442 | owner.setBounds(w.getBounds()); |
| 443 | } |
| 444 | } |
| 445 | // Enter full screen exclusive mode. |
| 446 | WWindowPeer peer = (WWindowPeer)w.getPeer(); |
| 447 | synchronized(peer) { |
| 448 | enterFullScreenExclusive(isDDEnabledOnDevice(), |
| 449 | screen, peer); |
| 450 | // Note: removed replaceSurfaceData() call because |
| 451 | // changing the window size or making it visible |
| 452 | // will cause this anyway, and both of these events happen |
| 453 | // as part of switching into fullscreen mode. |
| 454 | } |
| 455 | |
| 456 | // fix for 4868278 |
| 457 | peer.updateGC(); |
| 458 | peer.resetTargetGC(); |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | // Entering and exiting full-screen mode are done within a |
| 463 | // tree-lock and should never lock on any resources which are |
| 464 | // required by other threads which may have them and may require |
| 465 | // the tree-lock. |
| 466 | private native void enterFullScreenExclusive(boolean useDD, |
| 467 | int screen, WindowPeer w); |
| 468 | private native void exitFullScreenExclusive(boolean useDD, |
| 469 | int screen, WindowPeer w); |
| 470 | |
| 471 | public boolean isDisplayChangeSupported() { |
| 472 | return (isFullScreenSupported() && getFullScreenWindow() != null); |
| 473 | } |
| 474 | |
| 475 | public synchronized void setDisplayMode(DisplayMode dm) { |
| 476 | if (!isDisplayChangeSupported()) { |
| 477 | super.setDisplayMode(dm); |
| 478 | return; |
| 479 | } |
| 480 | if (dm == null || (dm = getMatchingDisplayMode(dm)) == null) { |
| 481 | throw new IllegalArgumentException("Invalid display mode"); |
| 482 | } |
| 483 | if (getDisplayMode().equals(dm)) { |
| 484 | return; |
| 485 | } |
| 486 | Window w = getFullScreenWindow(); |
| 487 | if (w != null) { |
| 488 | WWindowPeer peer = (WWindowPeer)w.getPeer(); |
| 489 | configDisplayMode(screen, peer, dm.getWidth(), dm.getHeight(), |
| 490 | dm.getBitDepth(), dm.getRefreshRate()); |
| 491 | // resize the fullscreen window to the dimensions of the new |
| 492 | // display mode |
| 493 | Rectangle screenBounds = getDefaultConfiguration().getBounds(); |
| 494 | w.setBounds(screenBounds.x, screenBounds.y, |
| 495 | dm.getWidth(), dm.getHeight()); |
| 496 | // Note: no call to replaceSurfaceData is required here since |
| 497 | // replacement will be caused by an upcoming display change event |
| 498 | } else { |
| 499 | throw new IllegalStateException("Must be in fullscreen mode " + |
| 500 | "in order to set display mode"); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | private native DisplayMode getCurrentDisplayMode(int screen); |
| 505 | private native void configDisplayMode(int screen, WindowPeer w, int width, |
| 506 | int height, int bitDepth, |
| 507 | int refreshRate); |
| 508 | private native void enumDisplayModes(int screen, ArrayList modes); |
| 509 | // This function is only available if DirectDraw is enabled, otherwise we |
| 510 | // have to do the work the hard way (enumerating all of the display modes |
| 511 | // and checking each one) |
| 512 | private native boolean isDisplayModeAvailable(int screen, int width, int height, |
| 513 | int bitDepth, int refreshRate); |
| 514 | |
| 515 | public synchronized DisplayMode getDisplayMode() { |
| 516 | DisplayMode res = getCurrentDisplayMode(screen); |
| 517 | return res; |
| 518 | } |
| 519 | |
| 520 | public synchronized DisplayMode[] getDisplayModes() { |
| 521 | ArrayList modes = new ArrayList(); |
| 522 | enumDisplayModes(screen, modes); |
| 523 | int listSize = modes.size(); |
| 524 | DisplayMode[] retArray = new DisplayMode[listSize]; |
| 525 | for (int i = 0; i < listSize; i++) { |
| 526 | retArray[i] = (DisplayMode)modes.get(i); |
| 527 | } |
| 528 | return retArray; |
| 529 | } |
| 530 | |
| 531 | private synchronized DisplayMode getMatchingDisplayMode(DisplayMode dm) { |
| 532 | if (!isDisplayChangeSupported()) { |
| 533 | return null; |
| 534 | } |
| 535 | if (isDDEnabledOnDevice()) { |
| 536 | return |
| 537 | isDisplayModeAvailable(screen, dm.getWidth(), dm.getHeight(), |
| 538 | dm.getBitDepth(), dm.getRefreshRate()) |
| 539 | ? dm : null; |
| 540 | } else { |
| 541 | // The function isDisplayModeAvailable is only available if |
| 542 | // DirectDraw is enabled, otherwise we have to do the work the |
| 543 | // hard way (enumerating all of the display modes |
| 544 | // and checking each one) |
| 545 | DisplayMode[] modes = getDisplayModes(); |
| 546 | for (DisplayMode mode : modes) { |
| 547 | if (dm.equals(mode) || |
| 548 | (dm.getRefreshRate() == DisplayMode.REFRESH_RATE_UNKNOWN && |
| 549 | dm.getWidth() == mode.getWidth() && |
| 550 | dm.getHeight() == mode.getHeight() && |
| 551 | dm.getBitDepth() == mode.getBitDepth())) |
| 552 | { |
| 553 | return mode; |
| 554 | } |
| 555 | } |
| 556 | return null; |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | /* |
| 561 | * From the DisplayChangeListener interface. |
| 562 | * Called from Win32GraphicsEnvironment when the display settings have |
| 563 | * changed. |
| 564 | */ |
| 565 | public void displayChanged() { |
| 566 | d3dContext = null; |
| 567 | dynamicColorModel = null; |
| 568 | defaultConfig = null; |
| 569 | configs = null; |
| 570 | // pass on to all top-level windows on this display |
| 571 | topLevels.notifyListeners(); |
| 572 | } |
| 573 | |
| 574 | /** |
| 575 | * Part of the DisplayChangedListener interface: devices |
| 576 | * do not need to react to this event |
| 577 | */ |
| 578 | public void paletteChanged() { |
| 579 | } |
| 580 | |
| 581 | /* |
| 582 | * Add a DisplayChangeListener to be notified when the display settings |
| 583 | * are changed. Typically, only top-level containers need to be added |
| 584 | * to Win32GraphicsDevice. |
| 585 | */ |
| 586 | public void addDisplayChangedListener(DisplayChangedListener client) { |
| 587 | topLevels.add(client); |
| 588 | } |
| 589 | |
| 590 | /* |
| 591 | * Remove a DisplayChangeListener from this Win32GraphicsDevice |
| 592 | */ |
| 593 | public void removeDisplayChangedListener(DisplayChangedListener client) { |
| 594 | topLevels.remove(client); |
| 595 | } |
| 596 | |
| 597 | /** |
| 598 | * Creates and returns the color model associated with this device |
| 599 | */ |
| 600 | private native ColorModel makeColorModel (int screen, |
| 601 | boolean dynamic); |
| 602 | |
| 603 | /** |
| 604 | * Returns a dynamic ColorModel which is updated when there |
| 605 | * are any changes (e.g., palette changes) in the device |
| 606 | */ |
| 607 | public ColorModel getDynamicColorModel() { |
| 608 | if (dynamicColorModel == null) { |
| 609 | dynamicColorModel = makeColorModel(screen, true); |
| 610 | } |
| 611 | return dynamicColorModel; |
| 612 | } |
| 613 | |
| 614 | /** |
| 615 | * Returns the non-dynamic ColorModel associated with this device |
| 616 | */ |
| 617 | public ColorModel getColorModel() { |
| 618 | if (colorModel == null) { |
| 619 | colorModel = makeColorModel(screen, false); |
| 620 | } |
| 621 | return colorModel; |
| 622 | } |
| 623 | |
| 624 | private native int getDeviceMemoryNative(int screen); |
| 625 | |
| 626 | /** |
| 627 | * Returns number of bytes available in VRAM on this device. |
| 628 | */ |
| 629 | public int getAvailableAcceleratedMemory() { |
| 630 | if (getDefaultConfiguration() instanceof WGLGraphicsConfig) { |
| 631 | // when OGL is enabled, there is no way to determine the amount |
| 632 | // of accelerated memory, so just return the default value |
| 633 | return super.getAvailableAcceleratedMemory(); |
| 634 | } |
| 635 | return getDeviceMemoryNative(screen); |
| 636 | } |
| 637 | } |