318 /**
319 * Called from SunGraphicsEnv when there has been a display mode change.
320 * Note that we simply invalidate hardware surfaces here; we do not
321 * attempt to recreate or re-render them. This is to avoid threading
322 * conflicts with the native toolkit and associated threads. Instead,
323 * we just nullify the old surface data object and wait for a future
324 * method in the rendering process to recreate the surface.
325 */
326 public void displayChanged() {
327 if (!isAccelerationEnabled()) {
328 return;
329 }
330 lostSurface = true;
331 if (sdAccel != null) {
332 // First, nullify the software surface. This guards against
333 // using a SurfaceData that was created in a different
334 // display mode.
335 sdBackup = null;
336 sdCurrent = getBackupSurface();
337 // Now, invalidate the old hardware-based SurfaceData
338 SurfaceData oldData = sdAccel;
339 sdAccel = null;
340 oldData.invalidate();
341 }
342 // Update graphicsConfig for the vImg in case it changed due to
343 // this display change event
344 vImg.updateGraphicsConfig();
345 }
346
347 /**
348 * When device palette changes, need to force a new copy
349 * of the image into our hardware cache to update the
350 * color indices of the pixels (indexed mode only).
351 */
352 public void paletteChanged() {
353 lostSurface = true;
354 }
355
356 /**
357 * Called by validate() to see whether the GC passed in is ok for
358 * rendering to. This generic implementation checks to see
359 * whether the GC is either null or is from the same
360 * device as the one that this image was created on. Platform-
361 * specific implementations may perform other checks as
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318 /**
319 * Called from SunGraphicsEnv when there has been a display mode change.
320 * Note that we simply invalidate hardware surfaces here; we do not
321 * attempt to recreate or re-render them. This is to avoid threading
322 * conflicts with the native toolkit and associated threads. Instead,
323 * we just nullify the old surface data object and wait for a future
324 * method in the rendering process to recreate the surface.
325 */
326 public void displayChanged() {
327 if (!isAccelerationEnabled()) {
328 return;
329 }
330 lostSurface = true;
331 if (sdAccel != null) {
332 // First, nullify the software surface. This guards against
333 // using a SurfaceData that was created in a different
334 // display mode.
335 sdBackup = null;
336 sdCurrent = getBackupSurface();
337 // Now, invalidate the old hardware-based SurfaceData
338 // Note that getBackupSurface may set sdAccel to null!!
339 if (sdAccel != null) {
340 SurfaceData oldData = sdAccel;
341 sdAccel = null;
342 oldData.invalidate();
343 }
344 }
345 // Update graphicsConfig for the vImg in case it changed due to
346 // this display change event
347 vImg.updateGraphicsConfig();
348 }
349
350 /**
351 * When device palette changes, need to force a new copy
352 * of the image into our hardware cache to update the
353 * color indices of the pixels (indexed mode only).
354 */
355 public void paletteChanged() {
356 lostSurface = true;
357 }
358
359 /**
360 * Called by validate() to see whether the GC passed in is ok for
361 * rendering to. This generic implementation checks to see
362 * whether the GC is either null or is from the same
363 * device as the one that this image was created on. Platform-
364 * specific implementations may perform other checks as
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