AppWindowAnimator.java revision 92e432c30e2304272c2f5b1b33366f32c3d763cf
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.wm; 18 19import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ANIM; 20import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYERS; 21import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY; 22import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS; 23import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; 24import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; 25import static com.android.server.wm.WindowManagerService.TYPE_LAYER_OFFSET; 26 27import android.graphics.Matrix; 28import android.util.Slog; 29import android.util.TimeUtils; 30import android.view.Choreographer; 31import android.view.Display; 32import android.view.SurfaceControl; 33import android.view.WindowManagerPolicy; 34import android.view.animation.Animation; 35import android.view.animation.Transformation; 36 37import java.io.PrintWriter; 38import java.util.ArrayList; 39 40public class AppWindowAnimator { 41 static final String TAG = TAG_WITH_CLASS_NAME ? "AppWindowAnimator" : TAG_WM; 42 43 private static final int PROLONG_ANIMATION_DISABLED = 0; 44 static final int PROLONG_ANIMATION_AT_END = 1; 45 static final int PROLONG_ANIMATION_AT_START = 2; 46 47 final AppWindowToken mAppToken; 48 final WindowManagerService mService; 49 final WindowAnimator mAnimator; 50 51 boolean animating; 52 boolean wasAnimating; 53 Animation animation; 54 boolean hasTransformation; 55 final Transformation transformation = new Transformation(); 56 57 // Have we been asked to have this token keep the screen frozen? 58 // Protect with mAnimator. 59 boolean freezingScreen; 60 61 /** 62 * How long we last kept the screen frozen. 63 */ 64 int lastFreezeDuration; 65 66 // Offset to the window of all layers in the token, for use by 67 // AppWindowToken animations. 68 int animLayerAdjustment; 69 70 // Propagated from AppWindowToken.allDrawn, to determine when 71 // the state changes. 72 boolean allDrawn; 73 74 // Special surface for thumbnail animation. If deferThumbnailDestruction is enabled, then we 75 // will make sure that the thumbnail is destroyed after the other surface is completed. This 76 // requires that the duration of the two animations are the same. 77 SurfaceControl thumbnail; 78 int thumbnailTransactionSeq; 79 int thumbnailX; 80 int thumbnailY; 81 int thumbnailLayer; 82 int thumbnailForceAboveLayer; 83 Animation thumbnailAnimation; 84 final Transformation thumbnailTransformation = new Transformation(); 85 // This flag indicates that the destruction of the thumbnail surface is synchronized with 86 // another animation, so defer the destruction of this thumbnail surface for a single frame 87 // after the secondary animation completes. 88 boolean deferThumbnailDestruction; 89 // This flag is set if the animator has deferThumbnailDestruction set and has reached the final 90 // frame of animation. It will extend the animation by one frame and then clean up afterwards. 91 boolean deferFinalFrameCleanup; 92 // If true when the animation hits the last frame, it will keep running on that last frame. 93 // This is used to synchronize animation with Recents and we wait for Recents to tell us to 94 // finish or for a new animation be set as fail-safe mechanism. 95 private int mProlongAnimation; 96 // Whether the prolong animation can be removed when animation is set. The purpose of this is 97 // that if recents doesn't tell us to remove the prolonged animation, we will get rid of it 98 // when new animation is set. 99 private boolean mClearProlongedAnimation; 100 101 /** WindowStateAnimator from mAppAnimator.allAppWindows as of last performLayout */ 102 ArrayList<WindowStateAnimator> mAllAppWinAnimators = new ArrayList<>(); 103 104 /** True if the current animation was transferred from another AppWindowAnimator. 105 * See {@link #transferCurrentAnimation}*/ 106 boolean usingTransferredAnimation = false; 107 108 private boolean mSkipFirstFrame = false; 109 110 static final Animation sDummyAnimation = new DummyAnimation(); 111 112 public AppWindowAnimator(final AppWindowToken atoken) { 113 mAppToken = atoken; 114 mService = atoken.service; 115 mAnimator = mService.mAnimator; 116 } 117 118 public void setAnimation(Animation anim, int width, int height, boolean skipFirstFrame) { 119 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting animation in " + mAppToken 120 + ": " + anim + " wxh=" + width + "x" + height 121 + " isVisible=" + mAppToken.isVisible()); 122 animation = anim; 123 animating = false; 124 if (!anim.isInitialized()) { 125 anim.initialize(width, height, width, height); 126 } 127 anim.restrictDuration(WindowManagerService.MAX_ANIMATION_DURATION); 128 anim.scaleCurrentDuration(mService.getTransitionAnimationScaleLocked()); 129 int zorder = anim.getZAdjustment(); 130 int adj = 0; 131 if (zorder == Animation.ZORDER_TOP) { 132 adj = TYPE_LAYER_OFFSET; 133 } else if (zorder == Animation.ZORDER_BOTTOM) { 134 adj = -TYPE_LAYER_OFFSET; 135 } 136 137 if (animLayerAdjustment != adj) { 138 animLayerAdjustment = adj; 139 updateLayers(); 140 } 141 // Start out animation gone if window is gone, or visible if window is visible. 142 transformation.clear(); 143 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 144 hasTransformation = true; 145 146 this.mSkipFirstFrame = skipFirstFrame; 147 148 if (!mAppToken.appFullscreen) { 149 anim.setBackgroundColor(0); 150 } 151 if (mClearProlongedAnimation) { 152 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 153 } else { 154 mClearProlongedAnimation = true; 155 } 156 } 157 158 public void setDummyAnimation() { 159 if (WindowManagerService.localLOGV) Slog.v(TAG, "Setting dummy animation in " + mAppToken 160 + " isVisible=" + mAppToken.isVisible()); 161 animation = sDummyAnimation; 162 hasTransformation = true; 163 transformation.clear(); 164 transformation.setAlpha(mAppToken.isVisible() ? 1 : 0); 165 } 166 167 public void clearAnimation() { 168 if (animation != null) { 169 animation = null; 170 animating = true; 171 } 172 clearThumbnail(); 173 if (mAppToken.deferClearAllDrawn) { 174 mAppToken.allDrawn = false; 175 mAppToken.deferClearAllDrawn = false; 176 } 177 usingTransferredAnimation = false; 178 } 179 180 public boolean isAnimating() { 181 return animation != null || mAppToken.inPendingTransaction; 182 } 183 184 public void clearThumbnail() { 185 if (thumbnail != null) { 186 thumbnail.destroy(); 187 thumbnail = null; 188 } 189 deferThumbnailDestruction = false; 190 } 191 192 void transferCurrentAnimation( 193 AppWindowAnimator toAppAnimator, WindowStateAnimator transferWinAnimator) { 194 195 if (animation != null) { 196 toAppAnimator.animation = animation; 197 animation = null; 198 toAppAnimator.animating = animating; 199 toAppAnimator.animLayerAdjustment = animLayerAdjustment; 200 animLayerAdjustment = 0; 201 toAppAnimator.updateLayers(); 202 updateLayers(); 203 toAppAnimator.usingTransferredAnimation = true; 204 } 205 if (transferWinAnimator != null) { 206 mAllAppWinAnimators.remove(transferWinAnimator); 207 toAppAnimator.mAllAppWinAnimators.add(transferWinAnimator); 208 transferWinAnimator.mAppAnimator = toAppAnimator; 209 } 210 } 211 212 void updateLayers() { 213 final int windowCount = mAppToken.allAppWindows.size(); 214 final int adj = animLayerAdjustment; 215 thumbnailLayer = -1; 216 final WallpaperController wallpaperController = mService.mWallpaperControllerLocked; 217 for (int i = 0; i < windowCount; i++) { 218 final WindowState w = mAppToken.allAppWindows.get(i); 219 final WindowStateAnimator winAnimator = w.mWinAnimator; 220 winAnimator.mAnimLayer = w.mLayer + adj; 221 if (winAnimator.mAnimLayer > thumbnailLayer) { 222 thumbnailLayer = winAnimator.mAnimLayer; 223 } 224 if (DEBUG_LAYERS) Slog.v(TAG, "Updating layer " + w + ": " + winAnimator.mAnimLayer); 225 if (w == mService.mInputMethodTarget && !mService.mInputMethodTargetWaitingAnim) { 226 mService.mLayersController.setInputMethodAnimLayerAdjustment(adj); 227 } 228 wallpaperController.setAnimLayerAdjustment(w, adj); 229 } 230 } 231 232 private void stepThumbnailAnimation(long currentTime) { 233 thumbnailTransformation.clear(); 234 final long animationFrameTime = getAnimationFrameTime(thumbnailAnimation, currentTime); 235 thumbnailAnimation.getTransformation(animationFrameTime, thumbnailTransformation); 236 thumbnailTransformation.getMatrix().preTranslate(thumbnailX, thumbnailY); 237 238 ScreenRotationAnimation screenRotationAnimation = 239 mAnimator.getScreenRotationAnimationLocked(Display.DEFAULT_DISPLAY); 240 final boolean screenAnimation = screenRotationAnimation != null 241 && screenRotationAnimation.isAnimating(); 242 if (screenAnimation) { 243 thumbnailTransformation.postCompose(screenRotationAnimation.getEnterTransformation()); 244 } 245 // cache often used attributes locally 246 final float tmpFloats[] = mService.mTmpFloats; 247 thumbnailTransformation.getMatrix().getValues(tmpFloats); 248 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 249 "thumbnail", "POS " + tmpFloats[Matrix.MTRANS_X] 250 + ", " + tmpFloats[Matrix.MTRANS_Y], null); 251 thumbnail.setPosition(tmpFloats[Matrix.MTRANS_X], tmpFloats[Matrix.MTRANS_Y]); 252 if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(thumbnail, 253 "thumbnail", "alpha=" + thumbnailTransformation.getAlpha() 254 + " layer=" + thumbnailLayer 255 + " matrix=[" + tmpFloats[Matrix.MSCALE_X] 256 + "," + tmpFloats[Matrix.MSKEW_Y] 257 + "][" + tmpFloats[Matrix.MSKEW_X] 258 + "," + tmpFloats[Matrix.MSCALE_Y] + "]", null); 259 thumbnail.setAlpha(thumbnailTransformation.getAlpha()); 260 if (thumbnailForceAboveLayer > 0) { 261 thumbnail.setLayer(thumbnailForceAboveLayer + 1); 262 } else { 263 // The thumbnail is layered below the window immediately above this 264 // token's anim layer. 265 thumbnail.setLayer(thumbnailLayer + WindowManagerService.WINDOW_LAYER_MULTIPLIER 266 - WindowManagerService.LAYER_OFFSET_THUMBNAIL); 267 } 268 thumbnail.setMatrix(tmpFloats[Matrix.MSCALE_X], tmpFloats[Matrix.MSKEW_Y], 269 tmpFloats[Matrix.MSKEW_X], tmpFloats[Matrix.MSCALE_Y]); 270 } 271 272 /** 273 * Sometimes we need to synchronize the first frame of animation with some external event, e.g. 274 * Recents hiding some of its content. To achieve this, we prolong the start of the animaiton 275 * and keep producing the first frame of the animation. 276 */ 277 private long getAnimationFrameTime(Animation animation, long currentTime) { 278 if (mProlongAnimation == PROLONG_ANIMATION_AT_START) { 279 animation.setStartTime(currentTime); 280 return currentTime + 1; 281 } 282 return currentTime; 283 } 284 285 private boolean stepAnimation(long currentTime) { 286 if (animation == null) { 287 return false; 288 } 289 transformation.clear(); 290 final long animationFrameTime = getAnimationFrameTime(animation, currentTime); 291 boolean hasMoreFrames = animation.getTransformation(animationFrameTime, transformation); 292 if (!hasMoreFrames) { 293 if (deferThumbnailDestruction && !deferFinalFrameCleanup) { 294 // We are deferring the thumbnail destruction, so extend the animation for one more 295 // (dummy) frame before we clean up 296 deferFinalFrameCleanup = true; 297 hasMoreFrames = true; 298 } else { 299 if (false && DEBUG_ANIM) Slog.v(TAG, 300 "Stepped animation in " + mAppToken + ": more=" + hasMoreFrames + 301 ", xform=" + transformation + ", mProlongAnimation=" + mProlongAnimation); 302 deferFinalFrameCleanup = false; 303 if (mProlongAnimation == PROLONG_ANIMATION_AT_END) { 304 hasMoreFrames = true; 305 } else { 306 animation = null; 307 clearThumbnail(); 308 if (DEBUG_ANIM) Slog.v(TAG, "Finished animation in " + mAppToken + " @ " 309 + currentTime); 310 } 311 } 312 } 313 hasTransformation = hasMoreFrames; 314 return hasMoreFrames; 315 } 316 317 private long getStartTimeCorrection() { 318 if (mSkipFirstFrame) { 319 320 // If the transition is an animation in which the first frame doesn't change the screen 321 // contents at all, we can just skip it and start at the second frame. So we shift the 322 // start time of the animation forward by minus the frame duration. 323 return -Choreographer.getInstance().getFrameIntervalNanos() / TimeUtils.NANOS_PER_MS; 324 } else { 325 return 0; 326 } 327 } 328 329 // This must be called while inside a transaction. 330 boolean stepAnimationLocked(long currentTime, final int displayId) { 331 if (mService.okToDisplay()) { 332 // We will run animations as long as the display isn't frozen. 333 334 if (animation == sDummyAnimation) { 335 // This guy is going to animate, but not yet. For now count 336 // it as not animating for purposes of scheduling transactions; 337 // when it is really time to animate, this will be set to 338 // a real animation and the next call will execute normally. 339 return false; 340 } 341 342 if ((mAppToken.allDrawn || mAppToken.mAnimatingWithSavedSurface 343 || animating || mAppToken.startingDisplayed) 344 && animation != null) { 345 if (!animating) { 346 if (DEBUG_ANIM) Slog.v(TAG, 347 "Starting animation in " + mAppToken + 348 " @ " + currentTime + " scale=" 349 + mService.getTransitionAnimationScaleLocked() 350 + " allDrawn=" + mAppToken.allDrawn + " animating=" + animating); 351 long correction = getStartTimeCorrection(); 352 animation.setStartTime(currentTime + correction); 353 animating = true; 354 if (thumbnail != null) { 355 thumbnail.show(); 356 thumbnailAnimation.setStartTime(currentTime + correction); 357 } 358 mSkipFirstFrame = false; 359 } 360 if (stepAnimation(currentTime)) { 361 // animation isn't over, step any thumbnail and that's 362 // it for now. 363 if (thumbnail != null) { 364 stepThumbnailAnimation(currentTime); 365 } 366 return true; 367 } 368 } 369 } else if (animation != null) { 370 // If the display is frozen, and there is a pending animation, 371 // clear it and make sure we run the cleanup code. 372 animating = true; 373 animation = null; 374 } 375 376 hasTransformation = false; 377 378 if (!animating && animation == null) { 379 return false; 380 } 381 382 mAnimator.setAppLayoutChanges(this, WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM, 383 "AppWindowToken", displayId); 384 385 clearAnimation(); 386 animating = false; 387 if (animLayerAdjustment != 0) { 388 animLayerAdjustment = 0; 389 updateLayers(); 390 } 391 if (mService.mInputMethodTarget != null 392 && mService.mInputMethodTarget.mAppToken == mAppToken) { 393 mService.moveInputMethodWindowsIfNeededLocked(true); 394 } 395 396 if (DEBUG_ANIM) Slog.v(TAG, 397 "Animation done in " + mAppToken 398 + ": reportedVisible=" + mAppToken.reportedVisible); 399 400 transformation.clear(); 401 402 final int numAllAppWinAnimators = mAllAppWinAnimators.size(); 403 for (int i = 0; i < numAllAppWinAnimators; i++) { 404 mAllAppWinAnimators.get(i).finishExit(); 405 } 406 mService.mAppTransition.notifyAppTransitionFinishedLocked(mAppToken.token); 407 return false; 408 } 409 410 // This must be called while inside a transaction. 411 boolean showAllWindowsLocked() { 412 boolean isAnimating = false; 413 final int NW = mAllAppWinAnimators.size(); 414 for (int i=0; i<NW; i++) { 415 WindowStateAnimator winAnimator = mAllAppWinAnimators.get(i); 416 if (DEBUG_VISIBILITY) Slog.v(TAG, "performing show on: " + winAnimator); 417 winAnimator.performShowLocked(); 418 isAnimating |= winAnimator.isAnimating(); 419 } 420 return isAnimating; 421 } 422 423 void dump(PrintWriter pw, String prefix, boolean dumpAll) { 424 pw.print(prefix); pw.print("mAppToken="); pw.println(mAppToken); 425 pw.print(prefix); pw.print("mAnimator="); pw.println(mAnimator); 426 pw.print(prefix); pw.print("freezingScreen="); pw.print(freezingScreen); 427 pw.print(" allDrawn="); pw.print(allDrawn); 428 pw.print(" animLayerAdjustment="); pw.println(animLayerAdjustment); 429 if (lastFreezeDuration != 0) { 430 pw.print(prefix); pw.print("lastFreezeDuration="); 431 TimeUtils.formatDuration(lastFreezeDuration, pw); pw.println(); 432 } 433 if (animating || animation != null) { 434 pw.print(prefix); pw.print("animating="); pw.println(animating); 435 pw.print(prefix); pw.print("animation="); pw.println(animation); 436 } 437 if (hasTransformation) { 438 pw.print(prefix); pw.print("XForm: "); 439 transformation.printShortString(pw); 440 pw.println(); 441 } 442 if (thumbnail != null) { 443 pw.print(prefix); pw.print("thumbnail="); pw.print(thumbnail); 444 pw.print(" x="); pw.print(thumbnailX); 445 pw.print(" y="); pw.print(thumbnailY); 446 pw.print(" layer="); pw.println(thumbnailLayer); 447 pw.print(prefix); pw.print("thumbnailAnimation="); pw.println(thumbnailAnimation); 448 pw.print(prefix); pw.print("thumbnailTransformation="); 449 pw.println(thumbnailTransformation.toShortString()); 450 } 451 for (int i=0; i<mAllAppWinAnimators.size(); i++) { 452 WindowStateAnimator wanim = mAllAppWinAnimators.get(i); 453 pw.print(prefix); pw.print("App Win Anim #"); pw.print(i); 454 pw.print(": "); pw.println(wanim); 455 } 456 } 457 458 void startProlongAnimation(int prolongType) { 459 mProlongAnimation = prolongType; 460 mClearProlongedAnimation = false; 461 } 462 463 void endProlongedAnimation() { 464 mProlongAnimation = PROLONG_ANIMATION_DISABLED; 465 } 466 467 // This is an animation that does nothing: it just immediately finishes 468 // itself every time it is called. It is used as a stub animation in cases 469 // where we want to synchronize multiple things that may be animating. 470 static final class DummyAnimation extends Animation { 471 @Override 472 public boolean getTransformation(long currentTime, Transformation outTransformation) { 473 return false; 474 } 475 } 476 477} 478