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      1 // Copyright 2012 Google Inc. All Rights Reserved.
      2 
      3 package com.android.server.wm;
      4 
      5 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
      6 import static com.android.server.wm.WindowManagerService.DEBUG_ANIM;
      7 import static com.android.server.wm.WindowManagerService.DEBUG_LAYERS;
      8 import static com.android.server.wm.WindowManagerService.DEBUG_ORIENTATION;
      9 import static com.android.server.wm.WindowManagerService.DEBUG_STARTING_WINDOW;
     10 import static com.android.server.wm.WindowManagerService.DEBUG_SURFACE_TRACE;
     11 import static com.android.server.wm.WindowManagerService.SHOW_TRANSACTIONS;
     12 import static com.android.server.wm.WindowManagerService.DEBUG_VISIBILITY;
     13 import static com.android.server.wm.WindowManagerService.SHOW_LIGHT_TRANSACTIONS;
     14 import static com.android.server.wm.WindowManagerService.SHOW_SURFACE_ALLOC;
     15 import static com.android.server.wm.WindowManagerService.localLOGV;
     16 import static com.android.server.wm.WindowManagerService.LayoutFields.SET_ORIENTATION_CHANGE_COMPLETE;
     17 import static com.android.server.wm.WindowManagerService.LayoutFields.SET_TURN_ON_SCREEN;
     18 
     19 import android.content.Context;
     20 import android.graphics.Matrix;
     21 import android.graphics.PixelFormat;
     22 import android.graphics.Point;
     23 import android.graphics.PointF;
     24 import android.graphics.Rect;
     25 import android.graphics.RectF;
     26 import android.graphics.Region;
     27 import android.os.Debug;
     28 import android.util.Slog;
     29 import android.view.Display;
     30 import android.view.DisplayInfo;
     31 import android.view.MagnificationSpec;
     32 import android.view.Surface.OutOfResourcesException;
     33 import android.view.SurfaceControl;
     34 import android.view.SurfaceSession;
     35 import android.view.WindowManager;
     36 import android.view.WindowManagerPolicy;
     37 import android.view.WindowManager.LayoutParams;
     38 import android.view.animation.Animation;
     39 import android.view.animation.AnimationUtils;
     40 import android.view.animation.Transformation;
     41 
     42 import com.android.server.wm.WindowManagerService.H;
     43 
     44 import java.io.PrintWriter;
     45 import java.util.ArrayList;
     46 
     47 class WinAnimatorList extends ArrayList<WindowStateAnimator> {
     48 }
     49 
     50 /**
     51  * Keep track of animations and surface operations for a single WindowState.
     52  **/
     53 class WindowStateAnimator {
     54     static final String TAG = "WindowStateAnimator";
     55 
     56     // Unchanging local convenience fields.
     57     final WindowManagerService mService;
     58     final WindowState mWin;
     59     final WindowStateAnimator mAttachedWinAnimator;
     60     final WindowAnimator mAnimator;
     61     AppWindowAnimator mAppAnimator;
     62     final Session mSession;
     63     final WindowManagerPolicy mPolicy;
     64     final Context mContext;
     65     final boolean mIsWallpaper;
     66 
     67     // If this is a universe background window, this is the transformation
     68     // it is applying to the rest of the universe.
     69     final Transformation mUniverseTransform = new Transformation();
     70 
     71     // Currently running animation.
     72     boolean mAnimating;
     73     boolean mLocalAnimating;
     74     Animation mAnimation;
     75     boolean mAnimationIsEntrance;
     76     boolean mHasTransformation;
     77     boolean mHasLocalTransformation;
     78     final Transformation mTransformation = new Transformation();
     79     boolean mWasAnimating;      // Were we animating going into the most recent animation step?
     80     int mAnimLayer;
     81     int mLastLayer;
     82 
     83     SurfaceControl mSurfaceControl;
     84     SurfaceControl mPendingDestroySurface;
     85 
     86     /**
     87      * Set when we have changed the size of the surface, to know that
     88      * we must tell them application to resize (and thus redraw itself).
     89      */
     90     boolean mSurfaceResized;
     91 
     92     /**
     93      * Set if the client has asked that the destroy of its surface be delayed
     94      * until it explicitly says it is okay.
     95      */
     96     boolean mSurfaceDestroyDeferred;
     97 
     98     float mShownAlpha = 0;
     99     float mAlpha = 0;
    100     float mLastAlpha = 0;
    101 
    102     // Used to save animation distances between the time they are calculated and when they are
    103     // used.
    104     int mAnimDw;
    105     int mAnimDh;
    106     float mDsDx=1, mDtDx=0, mDsDy=0, mDtDy=1;
    107     float mLastDsDx=1, mLastDtDx=0, mLastDsDy=0, mLastDtDy=1;
    108 
    109     boolean mHaveMatrix;
    110 
    111     // For debugging, this is the last information given to the surface flinger.
    112     boolean mSurfaceShown;
    113     float mSurfaceX, mSurfaceY, mSurfaceW, mSurfaceH;
    114     int mSurfaceLayer;
    115     float mSurfaceAlpha;
    116 
    117     // Set to true if, when the window gets displayed, it should perform
    118     // an enter animation.
    119     boolean mEnterAnimationPending;
    120 
    121     /** This is set when there is no Surface */
    122     static final int NO_SURFACE = 0;
    123     /** This is set after the Surface has been created but before the window has been drawn. During
    124      * this time the surface is hidden. */
    125     static final int DRAW_PENDING = 1;
    126     /** This is set after the window has finished drawing for the first time but before its surface
    127      * is shown.  The surface will be displayed when the next layout is run. */
    128     static final int COMMIT_DRAW_PENDING = 2;
    129     /** This is set during the time after the window's drawing has been committed, and before its
    130      * surface is actually shown.  It is used to delay showing the surface until all windows in a
    131      * token are ready to be shown. */
    132     static final int READY_TO_SHOW = 3;
    133     /** Set when the window has been shown in the screen the first time. */
    134     static final int HAS_DRAWN = 4;
    135     static String drawStateToString(int state) {
    136         switch (state) {
    137             case NO_SURFACE: return "NO_SURFACE";
    138             case DRAW_PENDING: return "DRAW_PENDING";
    139             case COMMIT_DRAW_PENDING: return "COMMIT_DRAW_PENDING";
    140             case READY_TO_SHOW: return "READY_TO_SHOW";
    141             case HAS_DRAWN: return "HAS_DRAWN";
    142             default: return Integer.toString(state);
    143         }
    144     }
    145     int mDrawState;
    146 
    147     /** Was this window last hidden? */
    148     boolean mLastHidden;
    149 
    150     int mAttrFlags;
    151     int mAttrType;
    152 
    153     final int mLayerStack;
    154 
    155     public WindowStateAnimator(final WindowState win) {
    156         final WindowManagerService service = win.mService;
    157 
    158         mService = service;
    159         mAnimator = service.mAnimator;
    160         mPolicy = service.mPolicy;
    161         mContext = service.mContext;
    162         final DisplayInfo displayInfo = win.mDisplayContent.getDisplayInfo();
    163         mAnimDw = displayInfo.appWidth;
    164         mAnimDh = displayInfo.appHeight;
    165 
    166         mWin = win;
    167         mAttachedWinAnimator = win.mAttachedWindow == null
    168                 ? null : win.mAttachedWindow.mWinAnimator;
    169         mAppAnimator = win.mAppToken == null ? null : win.mAppToken.mAppAnimator;
    170         mSession = win.mSession;
    171         mAttrFlags = win.mAttrs.flags;
    172         mAttrType = win.mAttrs.type;
    173         mIsWallpaper = win.mIsWallpaper;
    174         mLayerStack = win.mDisplayContent.getDisplay().getLayerStack();
    175     }
    176 
    177     public void setAnimation(Animation anim) {
    178         if (localLOGV) Slog.v(TAG, "Setting animation in " + this + ": " + anim);
    179         mAnimating = false;
    180         mLocalAnimating = false;
    181         mAnimation = anim;
    182         mAnimation.restrictDuration(WindowManagerService.MAX_ANIMATION_DURATION);
    183         mAnimation.scaleCurrentDuration(mService.mWindowAnimationScale);
    184         // Start out animation gone if window is gone, or visible if window is visible.
    185         mTransformation.clear();
    186         mTransformation.setAlpha(mLastHidden ? 0 : 1);
    187         mHasLocalTransformation = true;
    188     }
    189 
    190     public void clearAnimation() {
    191         if (mAnimation != null) {
    192             mAnimating = true;
    193             mLocalAnimating = false;
    194             mAnimation.cancel();
    195             mAnimation = null;
    196         }
    197     }
    198 
    199     /** Is the window or its container currently animating? */
    200     boolean isAnimating() {
    201         return mAnimation != null
    202                 || (mAttachedWinAnimator != null && mAttachedWinAnimator.mAnimation != null)
    203                 || (mAppAnimator != null &&
    204                         (mAppAnimator.animation != null
    205                                 || mAppAnimator.mAppToken.inPendingTransaction));
    206     }
    207 
    208     /** Is the window animating the DummyAnimation? */
    209     boolean isDummyAnimation() {
    210         return mAppAnimator != null
    211                 && mAppAnimator.animation == AppWindowAnimator.sDummyAnimation;
    212     }
    213 
    214     /** Is this window currently animating? */
    215     boolean isWindowAnimating() {
    216         return mAnimation != null;
    217     }
    218 
    219     void cancelExitAnimationForNextAnimationLocked() {
    220         if (mAnimation != null) {
    221             mAnimation.cancel();
    222             mAnimation = null;
    223             mLocalAnimating = false;
    224             destroySurfaceLocked();
    225         }
    226     }
    227 
    228     private boolean stepAnimation(long currentTime) {
    229         if ((mAnimation == null) || !mLocalAnimating) {
    230             return false;
    231         }
    232         mTransformation.clear();
    233         final boolean more = mAnimation.getTransformation(currentTime, mTransformation);
    234         if (false && DEBUG_ANIM) Slog.v(
    235             TAG, "Stepped animation in " + this +
    236             ": more=" + more + ", xform=" + mTransformation);
    237         return more;
    238     }
    239 
    240     // This must be called while inside a transaction.  Returns true if
    241     // there is more animation to run.
    242     boolean stepAnimationLocked(long currentTime) {
    243         // Save the animation state as it was before this step so WindowManagerService can tell if
    244         // we just started or just stopped animating by comparing mWasAnimating with isAnimating().
    245         mWasAnimating = mAnimating;
    246         if (mService.okToDisplay()) {
    247             // We will run animations as long as the display isn't frozen.
    248 
    249             if (mWin.isDrawnLw() && mAnimation != null) {
    250                 mHasTransformation = true;
    251                 mHasLocalTransformation = true;
    252                 if (!mLocalAnimating) {
    253                     if (DEBUG_ANIM) Slog.v(
    254                         TAG, "Starting animation in " + this +
    255                         " @ " + currentTime + ": ww=" + mWin.mFrame.width() +
    256                         " wh=" + mWin.mFrame.height() +
    257                         " dw=" + mAnimDw + " dh=" + mAnimDh +
    258                         " scale=" + mService.mWindowAnimationScale);
    259                     mAnimation.initialize(mWin.mFrame.width(), mWin.mFrame.height(),
    260                             mAnimDw, mAnimDh);
    261                     final DisplayInfo displayInfo = mWin.mDisplayContent.getDisplayInfo();
    262                     mAnimDw = displayInfo.appWidth;
    263                     mAnimDh = displayInfo.appHeight;
    264                     mAnimation.setStartTime(currentTime);
    265                     mLocalAnimating = true;
    266                     mAnimating = true;
    267                 }
    268                 if ((mAnimation != null) && mLocalAnimating) {
    269                     if (stepAnimation(currentTime)) {
    270                         return true;
    271                     }
    272                 }
    273                 if (DEBUG_ANIM) Slog.v(
    274                     TAG, "Finished animation in " + this +
    275                     " @ " + currentTime);
    276                 //WindowManagerService.this.dump();
    277             }
    278             mHasLocalTransformation = false;
    279             if ((!mLocalAnimating || mAnimationIsEntrance) && mAppAnimator != null
    280                     && mAppAnimator.animation != null) {
    281                 // When our app token is animating, we kind-of pretend like
    282                 // we are as well.  Note the mLocalAnimating mAnimationIsEntrance
    283                 // part of this check means that we will only do this if
    284                 // our window is not currently exiting, or it is not
    285                 // locally animating itself.  The idea being that one that
    286                 // is exiting and doing a local animation should be removed
    287                 // once that animation is done.
    288                 mAnimating = true;
    289                 mHasTransformation = true;
    290                 mTransformation.clear();
    291                 return false;
    292             } else if (mHasTransformation) {
    293                 // Little trick to get through the path below to act like
    294                 // we have finished an animation.
    295                 mAnimating = true;
    296             } else if (isAnimating()) {
    297                 mAnimating = true;
    298             }
    299         } else if (mAnimation != null) {
    300             // If the display is frozen, and there is a pending animation,
    301             // clear it and make sure we run the cleanup code.
    302             mAnimating = true;
    303         }
    304 
    305         if (!mAnimating && !mLocalAnimating) {
    306             return false;
    307         }
    308 
    309         // Done animating, clean up.
    310         if (DEBUG_ANIM) Slog.v(
    311             TAG, "Animation done in " + this + ": exiting=" + mWin.mExiting
    312             + ", reportedVisible="
    313             + (mWin.mAppToken != null ? mWin.mAppToken.reportedVisible : false));
    314 
    315         mAnimating = false;
    316         mLocalAnimating = false;
    317         if (mAnimation != null) {
    318             mAnimation.cancel();
    319             mAnimation = null;
    320         }
    321         if (mAnimator.mWindowDetachedWallpaper == mWin) {
    322             mAnimator.mWindowDetachedWallpaper = null;
    323         }
    324         mAnimLayer = mWin.mLayer;
    325         if (mWin.mIsImWindow) {
    326             mAnimLayer += mService.mInputMethodAnimLayerAdjustment;
    327         } else if (mIsWallpaper) {
    328             mAnimLayer += mService.mWallpaperAnimLayerAdjustment;
    329         }
    330         if (DEBUG_LAYERS) Slog.v(TAG, "Stepping win " + this
    331                 + " anim layer: " + mAnimLayer);
    332         mHasTransformation = false;
    333         mHasLocalTransformation = false;
    334         if (mWin.mPolicyVisibility != mWin.mPolicyVisibilityAfterAnim) {
    335             if (DEBUG_VISIBILITY) {
    336                 Slog.v(TAG, "Policy visibility changing after anim in " + this + ": "
    337                         + mWin.mPolicyVisibilityAfterAnim);
    338             }
    339             mWin.mPolicyVisibility = mWin.mPolicyVisibilityAfterAnim;
    340             mWin.mDisplayContent.layoutNeeded = true;
    341             if (!mWin.mPolicyVisibility) {
    342                 if (mService.mCurrentFocus == mWin) {
    343                     if (WindowManagerService.DEBUG_FOCUS_LIGHT) Slog.i(TAG,
    344                             "setAnimationLocked: setting mFocusMayChange true");
    345                     mService.mFocusMayChange = true;
    346                 }
    347                 // Window is no longer visible -- make sure if we were waiting
    348                 // for it to be displayed before enabling the display, that
    349                 // we allow the display to be enabled now.
    350                 mService.enableScreenIfNeededLocked();
    351             }
    352         }
    353         mTransformation.clear();
    354         if (mDrawState == HAS_DRAWN
    355                 && mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING
    356                 && mWin.mAppToken != null
    357                 && mWin.mAppToken.firstWindowDrawn
    358                 && mWin.mAppToken.startingData != null) {
    359             if (DEBUG_STARTING_WINDOW) Slog.v(TAG, "Finish starting "
    360                     + mWin.mToken + ": first real window done animating");
    361             mService.mFinishedStarting.add(mWin.mAppToken);
    362             mService.mH.sendEmptyMessage(H.FINISHED_STARTING);
    363         } else if (mAttrType == LayoutParams.TYPE_STATUS_BAR && mWin.mPolicyVisibility) {
    364             // Upon completion of a not-visible to visible status bar animation a relayout is
    365             // required.
    366             mWin.mDisplayContent.layoutNeeded = true;
    367         }
    368 
    369         finishExit();
    370         final int displayId = mWin.mDisplayContent.getDisplayId();
    371         mAnimator.setPendingLayoutChanges(displayId, WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM);
    372         if (WindowManagerService.DEBUG_LAYOUT_REPEATS) mService.debugLayoutRepeats(
    373                 "WindowStateAnimator", mAnimator.getPendingLayoutChanges(displayId));
    374 
    375         if (mWin.mAppToken != null) {
    376             mWin.mAppToken.updateReportedVisibilityLocked();
    377         }
    378 
    379         return false;
    380     }
    381 
    382     void finishExit() {
    383         if (WindowManagerService.DEBUG_ANIM) Slog.v(
    384                 TAG, "finishExit in " + this
    385                 + ": exiting=" + mWin.mExiting
    386                 + " remove=" + mWin.mRemoveOnExit
    387                 + " windowAnimating=" + isWindowAnimating());
    388 
    389         final int N = mWin.mChildWindows.size();
    390         for (int i=0; i<N; i++) {
    391             mWin.mChildWindows.get(i).mWinAnimator.finishExit();
    392         }
    393 
    394         if (!mWin.mExiting) {
    395             return;
    396         }
    397 
    398         if (isWindowAnimating()) {
    399             return;
    400         }
    401 
    402         if (WindowManagerService.localLOGV) Slog.v(
    403                 TAG, "Exit animation finished in " + this
    404                 + ": remove=" + mWin.mRemoveOnExit);
    405         if (mSurfaceControl != null) {
    406             mService.mDestroySurface.add(mWin);
    407             mWin.mDestroying = true;
    408             if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(
    409                 mWin, "HIDE (finishExit)", null);
    410             hide();
    411         }
    412         mWin.mExiting = false;
    413         if (mWin.mRemoveOnExit) {
    414             mService.mPendingRemove.add(mWin);
    415             mWin.mRemoveOnExit = false;
    416         }
    417         mAnimator.hideWallpapersLocked(mWin);
    418     }
    419 
    420     void hide() {
    421         if (!mLastHidden) {
    422             //dump();
    423             mLastHidden = true;
    424             if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin,
    425                     "HIDE (performLayout)", null);
    426             if (mSurfaceControl != null) {
    427                 mSurfaceShown = false;
    428                 try {
    429                     mSurfaceControl.hide();
    430                 } catch (RuntimeException e) {
    431                     Slog.w(TAG, "Exception hiding surface in " + mWin);
    432                 }
    433             }
    434         }
    435     }
    436 
    437     boolean finishDrawingLocked() {
    438         if (DEBUG_STARTING_WINDOW &&
    439                 mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING) {
    440             Slog.v(TAG, "Finishing drawing window " + mWin + ": mDrawState="
    441                     + drawStateToString(mDrawState));
    442         }
    443         if (mDrawState == DRAW_PENDING) {
    444             if (DEBUG_SURFACE_TRACE || DEBUG_ANIM || SHOW_TRANSACTIONS || DEBUG_ORIENTATION)
    445                 Slog.v(TAG, "finishDrawingLocked: mDrawState=COMMIT_DRAW_PENDING " + this + " in "
    446                         + mSurfaceControl);
    447             if (DEBUG_STARTING_WINDOW &&
    448                     mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING) {
    449                 Slog.v(TAG, "Draw state now committed in " + mWin);
    450             }
    451             mDrawState = COMMIT_DRAW_PENDING;
    452             return true;
    453         }
    454         return false;
    455     }
    456 
    457     // This must be called while inside a transaction.
    458     boolean commitFinishDrawingLocked(long currentTime) {
    459         if (DEBUG_STARTING_WINDOW &&
    460                 mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING) {
    461             Slog.i(TAG, "commitFinishDrawingLocked: " + mWin + " cur mDrawState="
    462                     + drawStateToString(mDrawState));
    463         }
    464         if (mDrawState != COMMIT_DRAW_PENDING) {
    465             return false;
    466         }
    467         if (DEBUG_SURFACE_TRACE || DEBUG_ANIM) {
    468             Slog.i(TAG, "commitFinishDrawingLocked: mDrawState=READY_TO_SHOW " + mSurfaceControl);
    469         }
    470         mDrawState = READY_TO_SHOW;
    471         final boolean starting = mWin.mAttrs.type == TYPE_APPLICATION_STARTING;
    472         final AppWindowToken atoken = mWin.mAppToken;
    473         if (atoken == null || atoken.allDrawn || starting) {
    474             performShowLocked();
    475         }
    476         return true;
    477     }
    478 
    479     static class SurfaceTrace extends SurfaceControl {
    480         private final static String SURFACE_TAG = "SurfaceTrace";
    481         final static ArrayList<SurfaceTrace> sSurfaces = new ArrayList<SurfaceTrace>();
    482 
    483         private float mSurfaceTraceAlpha = 0;
    484         private int mLayer;
    485         private final PointF mPosition = new PointF();
    486         private final Point mSize = new Point();
    487         private final Rect mWindowCrop = new Rect();
    488         private boolean mShown = false;
    489         private int mLayerStack;
    490         private final String mName;
    491 
    492         public SurfaceTrace(SurfaceSession s,
    493                        String name, int w, int h, int format, int flags)
    494                    throws OutOfResourcesException {
    495             super(s, name, w, h, format, flags);
    496             mName = name != null ? name : "Not named";
    497             mSize.set(w, h);
    498             Slog.v(SURFACE_TAG, "ctor: " + this + ". Called by "
    499                     + Debug.getCallers(3));
    500         }
    501 
    502         @Override
    503         public void setAlpha(float alpha) {
    504             if (mSurfaceTraceAlpha != alpha) {
    505                 Slog.v(SURFACE_TAG, "setAlpha(" + alpha + "): OLD:" + this + ". Called by "
    506                         + Debug.getCallers(3));
    507                 mSurfaceTraceAlpha = alpha;
    508             }
    509             super.setAlpha(alpha);
    510         }
    511 
    512         @Override
    513         public void setLayer(int zorder) {
    514             if (zorder != mLayer) {
    515                 Slog.v(SURFACE_TAG, "setLayer(" + zorder + "): OLD:" + this + ". Called by "
    516                         + Debug.getCallers(3));
    517                 mLayer = zorder;
    518             }
    519             super.setLayer(zorder);
    520 
    521             sSurfaces.remove(this);
    522             int i;
    523             for (i = sSurfaces.size() - 1; i >= 0; i--) {
    524                 SurfaceTrace s = sSurfaces.get(i);
    525                 if (s.mLayer < zorder) {
    526                     break;
    527                 }
    528             }
    529             sSurfaces.add(i + 1, this);
    530         }
    531 
    532         @Override
    533         public void setPosition(float x, float y) {
    534             if (x != mPosition.x || y != mPosition.y) {
    535                 Slog.v(SURFACE_TAG, "setPosition(" + x + "," + y + "): OLD:" + this
    536                         + ". Called by " + Debug.getCallers(3));
    537                 mPosition.set(x, y);
    538             }
    539             super.setPosition(x, y);
    540         }
    541 
    542         @Override
    543         public void setSize(int w, int h) {
    544             if (w != mSize.x || h != mSize.y) {
    545                 Slog.v(SURFACE_TAG, "setSize(" + w + "," + h + "): OLD:" + this + ". Called by "
    546                         + Debug.getCallers(3));
    547                 mSize.set(w, h);
    548             }
    549             super.setSize(w, h);
    550         }
    551 
    552         @Override
    553         public void setWindowCrop(Rect crop) {
    554             if (crop != null) {
    555                 if (!crop.equals(mWindowCrop)) {
    556                     Slog.v(SURFACE_TAG, "setWindowCrop(" + crop.toShortString() + "): OLD:" + this
    557                             + ". Called by " + Debug.getCallers(3));
    558                     mWindowCrop.set(crop);
    559                 }
    560             }
    561             super.setWindowCrop(crop);
    562         }
    563 
    564         @Override
    565         public void setLayerStack(int layerStack) {
    566             if (layerStack != mLayerStack) {
    567                 Slog.v(SURFACE_TAG, "setLayerStack(" + layerStack + "): OLD:" + this
    568                         + ". Called by " + Debug.getCallers(3));
    569                 mLayerStack = layerStack;
    570             }
    571             super.setLayerStack(layerStack);
    572         }
    573 
    574         @Override
    575         public void hide() {
    576             if (mShown) {
    577                 Slog.v(SURFACE_TAG, "hide: OLD:" + this + ". Called by " + Debug.getCallers(3));
    578                 mShown = false;
    579             }
    580             super.hide();
    581         }
    582 
    583         @Override
    584         public void show() {
    585             if (!mShown) {
    586                 Slog.v(SURFACE_TAG, "show: OLD:" + this + ". Called by " + Debug.getCallers(3));
    587                 mShown = true;
    588             }
    589             super.show();
    590         }
    591 
    592         @Override
    593         public void destroy() {
    594             super.destroy();
    595             Slog.v(SURFACE_TAG, "destroy: " + this + ". Called by " + Debug.getCallers(3));
    596             sSurfaces.remove(this);
    597         }
    598 
    599         @Override
    600         public void release() {
    601             super.release();
    602             Slog.v(SURFACE_TAG, "release: " + this + ". Called by "
    603                     + Debug.getCallers(3));
    604             sSurfaces.remove(this);
    605         }
    606 
    607         static void dumpAllSurfaces() {
    608             final int N = sSurfaces.size();
    609             for (int i = 0; i < N; i++) {
    610                 Slog.i(TAG, "SurfaceDump: " + sSurfaces.get(i));
    611             }
    612         }
    613 
    614         @Override
    615         public String toString() {
    616             return "Surface " + Integer.toHexString(System.identityHashCode(this)) + " "
    617                     + mName + " (" + mLayerStack + "): shown=" + mShown + " layer=" + mLayer
    618                     + " alpha=" + mSurfaceTraceAlpha + " " + mPosition.x + "," + mPosition.y
    619                     + " " + mSize.x + "x" + mSize.y
    620                     + " crop=" + mWindowCrop.toShortString();
    621         }
    622     }
    623 
    624     SurfaceControl createSurfaceLocked() {
    625         if (mSurfaceControl == null) {
    626             if (DEBUG_ANIM || DEBUG_ORIENTATION) Slog.i(TAG,
    627                     "createSurface " + this + ": mDrawState=DRAW_PENDING");
    628             mDrawState = DRAW_PENDING;
    629             if (mWin.mAppToken != null) {
    630                 if (mWin.mAppToken.mAppAnimator.animation == null) {
    631                     mWin.mAppToken.allDrawn = false;
    632                     mWin.mAppToken.deferClearAllDrawn = false;
    633                 } else {
    634                     // Currently animating, persist current state of allDrawn until animation
    635                     // is complete.
    636                     mWin.mAppToken.deferClearAllDrawn = true;
    637                 }
    638             }
    639 
    640             mService.makeWindowFreezingScreenIfNeededLocked(mWin);
    641 
    642             int flags = SurfaceControl.HIDDEN;
    643             final WindowManager.LayoutParams attrs = mWin.mAttrs;
    644 
    645             if ((attrs.flags&WindowManager.LayoutParams.FLAG_SECURE) != 0) {
    646                 flags |= SurfaceControl.SECURE;
    647             }
    648             if (DEBUG_VISIBILITY) Slog.v(
    649                 TAG, "Creating surface in session "
    650                 + mSession.mSurfaceSession + " window " + this
    651                 + " w=" + mWin.mCompatFrame.width()
    652                 + " h=" + mWin.mCompatFrame.height() + " format="
    653                 + attrs.format + " flags=" + flags);
    654 
    655             int w = mWin.mCompatFrame.width();
    656             int h = mWin.mCompatFrame.height();
    657             if ((attrs.flags & LayoutParams.FLAG_SCALED) != 0) {
    658                 // for a scaled surface, we always want the requested
    659                 // size.
    660                 w = mWin.mRequestedWidth;
    661                 h = mWin.mRequestedHeight;
    662             }
    663 
    664             // Something is wrong and SurfaceFlinger will not like this,
    665             // try to revert to sane values
    666             if (w <= 0) w = 1;
    667             if (h <= 0) h = 1;
    668 
    669             mSurfaceShown = false;
    670             mSurfaceLayer = 0;
    671             mSurfaceAlpha = 0;
    672             mSurfaceX = 0;
    673             mSurfaceY = 0;
    674             mSurfaceW = w;
    675             mSurfaceH = h;
    676             mWin.mLastSystemDecorRect.set(0, 0, 0, 0);
    677             try {
    678                 final boolean isHwAccelerated = (attrs.flags &
    679                         WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED) != 0;
    680                 final int format = isHwAccelerated ? PixelFormat.TRANSLUCENT : attrs.format;
    681                 if (!PixelFormat.formatHasAlpha(attrs.format)) {
    682                     flags |= SurfaceControl.OPAQUE;
    683                 }
    684                 if (DEBUG_SURFACE_TRACE) {
    685                     mSurfaceControl = new SurfaceTrace(
    686                             mSession.mSurfaceSession,
    687                             attrs.getTitle().toString(),
    688                             w, h, format, flags);
    689                 } else {
    690                     mSurfaceControl = new SurfaceControl(
    691                         mSession.mSurfaceSession,
    692                         attrs.getTitle().toString(),
    693                         w, h, format, flags);
    694                 }
    695                 mWin.mHasSurface = true;
    696                 if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) Slog.i(TAG,
    697                         "  CREATE SURFACE "
    698                         + mSurfaceControl + " IN SESSION "
    699                         + mSession.mSurfaceSession
    700                         + ": pid=" + mSession.mPid + " format="
    701                         + attrs.format + " flags=0x"
    702                         + Integer.toHexString(flags)
    703                         + " / " + this);
    704             } catch (OutOfResourcesException e) {
    705                 mWin.mHasSurface = false;
    706                 Slog.w(TAG, "OutOfResourcesException creating surface");
    707                 mService.reclaimSomeSurfaceMemoryLocked(this, "create", true);
    708                 mDrawState = NO_SURFACE;
    709                 return null;
    710             } catch (Exception e) {
    711                 mWin.mHasSurface = false;
    712                 Slog.e(TAG, "Exception creating surface", e);
    713                 mDrawState = NO_SURFACE;
    714                 return null;
    715             }
    716 
    717             if (WindowManagerService.localLOGV) Slog.v(
    718                 TAG, "Got surface: " + mSurfaceControl
    719                 + ", set left=" + mWin.mFrame.left + " top=" + mWin.mFrame.top
    720                 + ", animLayer=" + mAnimLayer);
    721             if (SHOW_LIGHT_TRANSACTIONS) {
    722                 Slog.i(TAG, ">>> OPEN TRANSACTION createSurfaceLocked");
    723                 WindowManagerService.logSurface(mWin, "CREATE pos=("
    724                         + mWin.mFrame.left + "," + mWin.mFrame.top + ") ("
    725                         + mWin.mCompatFrame.width() + "x" + mWin.mCompatFrame.height()
    726                         + "), layer=" + mAnimLayer + " HIDE", null);
    727             }
    728             SurfaceControl.openTransaction();
    729             try {
    730                 try {
    731                     mSurfaceX = mWin.mFrame.left + mWin.mXOffset;
    732                     mSurfaceY = mWin.mFrame.top + mWin.mYOffset;
    733                     mSurfaceControl.setPosition(mSurfaceX, mSurfaceY);
    734                     mSurfaceLayer = mAnimLayer;
    735                     mSurfaceControl.setLayerStack(mLayerStack);
    736                     mSurfaceControl.setLayer(mAnimLayer);
    737                     mSurfaceControl.setAlpha(0);
    738                     mSurfaceShown = false;
    739                 } catch (RuntimeException e) {
    740                     Slog.w(TAG, "Error creating surface in " + w, e);
    741                     mService.reclaimSomeSurfaceMemoryLocked(this, "create-init", true);
    742                 }
    743                 mLastHidden = true;
    744             } finally {
    745                 SurfaceControl.closeTransaction();
    746                 if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
    747                         "<<< CLOSE TRANSACTION createSurfaceLocked");
    748             }
    749             if (WindowManagerService.localLOGV) Slog.v(
    750                     TAG, "Created surface " + this);
    751         }
    752         return mSurfaceControl;
    753     }
    754 
    755     void destroySurfaceLocked() {
    756         if (mWin.mAppToken != null && mWin == mWin.mAppToken.startingWindow) {
    757             mWin.mAppToken.startingDisplayed = false;
    758         }
    759 
    760         if (mSurfaceControl != null) {
    761 
    762             int i = mWin.mChildWindows.size();
    763             while (i > 0) {
    764                 i--;
    765                 WindowState c = mWin.mChildWindows.get(i);
    766                 c.mAttachedHidden = true;
    767             }
    768 
    769             try {
    770                 if (DEBUG_VISIBILITY) {
    771                     RuntimeException e = null;
    772                     if (!WindowManagerService.HIDE_STACK_CRAWLS) {
    773                         e = new RuntimeException();
    774                         e.fillInStackTrace();
    775                     }
    776                     Slog.w(TAG, "Window " + this + " destroying surface "
    777                             + mSurfaceControl + ", session " + mSession, e);
    778                 }
    779                 if (mSurfaceDestroyDeferred) {
    780                     if (mSurfaceControl != null && mPendingDestroySurface != mSurfaceControl) {
    781                         if (mPendingDestroySurface != null) {
    782                             if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
    783                                 RuntimeException e = null;
    784                                 if (!WindowManagerService.HIDE_STACK_CRAWLS) {
    785                                     e = new RuntimeException();
    786                                     e.fillInStackTrace();
    787                                 }
    788                                 WindowManagerService.logSurface(mWin, "DESTROY PENDING", e);
    789                             }
    790                             mPendingDestroySurface.destroy();
    791                         }
    792                         mPendingDestroySurface = mSurfaceControl;
    793                     }
    794                 } else {
    795                     if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
    796                         RuntimeException e = null;
    797                         if (!WindowManagerService.HIDE_STACK_CRAWLS) {
    798                             e = new RuntimeException();
    799                             e.fillInStackTrace();
    800                         }
    801                         WindowManagerService.logSurface(mWin, "DESTROY", e);
    802                     }
    803                     mSurfaceControl.destroy();
    804                 }
    805                 mAnimator.hideWallpapersLocked(mWin);
    806             } catch (RuntimeException e) {
    807                 Slog.w(TAG, "Exception thrown when destroying Window " + this
    808                     + " surface " + mSurfaceControl + " session " + mSession
    809                     + ": " + e.toString());
    810             }
    811 
    812             mSurfaceShown = false;
    813             mSurfaceControl = null;
    814             mWin.mHasSurface = false;
    815             mDrawState = NO_SURFACE;
    816         }
    817     }
    818 
    819     void destroyDeferredSurfaceLocked() {
    820         try {
    821             if (mPendingDestroySurface != null) {
    822                 if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
    823                     RuntimeException e = null;
    824                     if (!WindowManagerService.HIDE_STACK_CRAWLS) {
    825                         e = new RuntimeException();
    826                         e.fillInStackTrace();
    827                     }
    828                     WindowManagerService.logSurface(mWin, "DESTROY PENDING", e);
    829                 }
    830                 mPendingDestroySurface.destroy();
    831                 mAnimator.hideWallpapersLocked(mWin);
    832             }
    833         } catch (RuntimeException e) {
    834             Slog.w(TAG, "Exception thrown when destroying Window "
    835                     + this + " surface " + mPendingDestroySurface
    836                     + " session " + mSession + ": " + e.toString());
    837         }
    838         mSurfaceDestroyDeferred = false;
    839         mPendingDestroySurface = null;
    840     }
    841 
    842     void computeShownFrameLocked() {
    843         final boolean selfTransformation = mHasLocalTransformation;
    844         Transformation attachedTransformation =
    845                 (mAttachedWinAnimator != null && mAttachedWinAnimator.mHasLocalTransformation)
    846                 ? mAttachedWinAnimator.mTransformation : null;
    847         Transformation appTransformation = (mAppAnimator != null && mAppAnimator.hasTransformation)
    848                 ? mAppAnimator.transformation : null;
    849 
    850         // Wallpapers are animated based on the "real" window they
    851         // are currently targeting.
    852         final WindowState wallpaperTarget = mService.mWallpaperTarget;
    853         if (mIsWallpaper && wallpaperTarget != null && mService.mAnimateWallpaperWithTarget) {
    854             final WindowStateAnimator wallpaperAnimator = wallpaperTarget.mWinAnimator;
    855             if (wallpaperAnimator.mHasLocalTransformation &&
    856                     wallpaperAnimator.mAnimation != null &&
    857                     !wallpaperAnimator.mAnimation.getDetachWallpaper()) {
    858                 attachedTransformation = wallpaperAnimator.mTransformation;
    859                 if (WindowManagerService.DEBUG_WALLPAPER && attachedTransformation != null) {
    860                     Slog.v(TAG, "WP target attached xform: " + attachedTransformation);
    861                 }
    862             }
    863             final AppWindowAnimator wpAppAnimator = wallpaperTarget.mAppToken == null ?
    864                     null : wallpaperTarget.mAppToken.mAppAnimator;
    865                 if (wpAppAnimator != null && wpAppAnimator.hasTransformation
    866                     && wpAppAnimator.animation != null
    867                     && !wpAppAnimator.animation.getDetachWallpaper()) {
    868                 appTransformation = wpAppAnimator.transformation;
    869                 if (WindowManagerService.DEBUG_WALLPAPER && appTransformation != null) {
    870                     Slog.v(TAG, "WP target app xform: " + appTransformation);
    871                 }
    872             }
    873         }
    874 
    875         final int displayId = mWin.getDisplayId();
    876         final ScreenRotationAnimation screenRotationAnimation =
    877                 mAnimator.getScreenRotationAnimationLocked(displayId);
    878         final boolean screenAnimation =
    879                 screenRotationAnimation != null && screenRotationAnimation.isAnimating();
    880         if (selfTransformation || attachedTransformation != null
    881                 || appTransformation != null || screenAnimation) {
    882             // cache often used attributes locally
    883             final Rect frame = mWin.mFrame;
    884             final float tmpFloats[] = mService.mTmpFloats;
    885             final Matrix tmpMatrix = mWin.mTmpMatrix;
    886 
    887             // Compute the desired transformation.
    888             if (screenAnimation && screenRotationAnimation.isRotating()) {
    889                 // If we are doing a screen animation, the global rotation
    890                 // applied to windows can result in windows that are carefully
    891                 // aligned with each other to slightly separate, allowing you
    892                 // to see what is behind them.  An unsightly mess.  This...
    893                 // thing...  magically makes it call good: scale each window
    894                 // slightly (two pixels larger in each dimension, from the
    895                 // window's center).
    896                 final float w = frame.width();
    897                 final float h = frame.height();
    898                 if (w>=1 && h>=1) {
    899                     tmpMatrix.setScale(1 + 2/w, 1 + 2/h, w/2, h/2);
    900                 } else {
    901                     tmpMatrix.reset();
    902                 }
    903             } else {
    904                 tmpMatrix.reset();
    905             }
    906             tmpMatrix.postScale(mWin.mGlobalScale, mWin.mGlobalScale);
    907             if (selfTransformation) {
    908                 tmpMatrix.postConcat(mTransformation.getMatrix());
    909             }
    910             tmpMatrix.postTranslate(frame.left + mWin.mXOffset, frame.top + mWin.mYOffset);
    911             if (attachedTransformation != null) {
    912                 tmpMatrix.postConcat(attachedTransformation.getMatrix());
    913             }
    914             if (appTransformation != null) {
    915                 tmpMatrix.postConcat(appTransformation.getMatrix());
    916             }
    917             if (mAnimator.mUniverseBackground != null) {
    918                 tmpMatrix.postConcat(mAnimator.mUniverseBackground.mUniverseTransform.getMatrix());
    919             }
    920             if (screenAnimation) {
    921                 tmpMatrix.postConcat(screenRotationAnimation.getEnterTransformation().getMatrix());
    922             }
    923             //TODO (multidisplay): Magnification is supported only for the default display.
    924             if (mService.mDisplayMagnifier != null
    925                     && mWin.getDisplayId() == Display.DEFAULT_DISPLAY) {
    926                 MagnificationSpec spec = mService.mDisplayMagnifier
    927                         .getMagnificationSpecForWindowLocked(mWin);
    928                 if (spec != null && !spec.isNop()) {
    929                     tmpMatrix.postScale(spec.scale, spec.scale);
    930                     tmpMatrix.postTranslate(spec.offsetX, spec.offsetY);
    931                 }
    932             }
    933 
    934             // "convert" it into SurfaceFlinger's format
    935             // (a 2x2 matrix + an offset)
    936             // Here we must not transform the position of the surface
    937             // since it is already included in the transformation.
    938             //Slog.i(TAG, "Transform: " + matrix);
    939 
    940             mHaveMatrix = true;
    941             tmpMatrix.getValues(tmpFloats);
    942             mDsDx = tmpFloats[Matrix.MSCALE_X];
    943             mDtDx = tmpFloats[Matrix.MSKEW_Y];
    944             mDsDy = tmpFloats[Matrix.MSKEW_X];
    945             mDtDy = tmpFloats[Matrix.MSCALE_Y];
    946             float x = tmpFloats[Matrix.MTRANS_X];
    947             float y = tmpFloats[Matrix.MTRANS_Y];
    948             int w = frame.width();
    949             int h = frame.height();
    950             mWin.mShownFrame.set(x, y, x+w, y+h);
    951 
    952             // Now set the alpha...  but because our current hardware
    953             // can't do alpha transformation on a non-opaque surface,
    954             // turn it off if we are running an animation that is also
    955             // transforming since it is more important to have that
    956             // animation be smooth.
    957             mShownAlpha = mAlpha;
    958             if (!mService.mLimitedAlphaCompositing
    959                     || (!PixelFormat.formatHasAlpha(mWin.mAttrs.format)
    960                     || (mWin.isIdentityMatrix(mDsDx, mDtDx, mDsDy, mDtDy)
    961                             && x == frame.left && y == frame.top))) {
    962                 //Slog.i(TAG, "Applying alpha transform");
    963                 if (selfTransformation) {
    964                     mShownAlpha *= mTransformation.getAlpha();
    965                 }
    966                 if (attachedTransformation != null) {
    967                     mShownAlpha *= attachedTransformation.getAlpha();
    968                 }
    969                 if (appTransformation != null) {
    970                     mShownAlpha *= appTransformation.getAlpha();
    971                 }
    972                 if (mAnimator.mUniverseBackground != null) {
    973                     mShownAlpha *= mAnimator.mUniverseBackground.mUniverseTransform.getAlpha();
    974                 }
    975                 if (screenAnimation) {
    976                     mShownAlpha *= screenRotationAnimation.getEnterTransformation().getAlpha();
    977                 }
    978             } else {
    979                 //Slog.i(TAG, "Not applying alpha transform");
    980             }
    981 
    982             if ((DEBUG_SURFACE_TRACE || WindowManagerService.localLOGV)
    983                     && (mShownAlpha == 1.0 || mShownAlpha == 0.0)) Slog.v(
    984                     TAG, "computeShownFrameLocked: Animating " + this + " mAlpha=" + mAlpha
    985                     + " self=" + (selfTransformation ? mTransformation.getAlpha() : "null")
    986                     + " attached=" + (attachedTransformation == null ?
    987                             "null" : attachedTransformation.getAlpha())
    988                     + " app=" + (appTransformation == null ? "null" : appTransformation.getAlpha())
    989                     + " screen=" + (screenAnimation ?
    990                             screenRotationAnimation.getEnterTransformation().getAlpha() : "null"));
    991             return;
    992         } else if (mIsWallpaper && mService.mInnerFields.mWallpaperActionPending) {
    993             return;
    994         }
    995 
    996         if (WindowManagerService.localLOGV) Slog.v(
    997                 TAG, "computeShownFrameLocked: " + this +
    998                 " not attached, mAlpha=" + mAlpha);
    999 
   1000         final boolean applyUniverseTransformation = (mAnimator.mUniverseBackground != null
   1001                 && mWin.mAttrs.type != WindowManager.LayoutParams.TYPE_UNIVERSE_BACKGROUND
   1002                 && mWin.mBaseLayer < mAnimator.mAboveUniverseLayer);
   1003         MagnificationSpec spec = null;
   1004         //TODO (multidisplay): Magnification is supported only for the default display.
   1005         if (mService.mDisplayMagnifier != null && mWin.getDisplayId() == Display.DEFAULT_DISPLAY) {
   1006             spec = mService.mDisplayMagnifier.getMagnificationSpecForWindowLocked(mWin);
   1007         }
   1008         if (applyUniverseTransformation || spec != null) {
   1009             final Rect frame = mWin.mFrame;
   1010             final float tmpFloats[] = mService.mTmpFloats;
   1011             final Matrix tmpMatrix = mWin.mTmpMatrix;
   1012 
   1013             tmpMatrix.setScale(mWin.mGlobalScale, mWin.mGlobalScale);
   1014             tmpMatrix.postTranslate(frame.left + mWin.mXOffset, frame.top + mWin.mYOffset);
   1015 
   1016             if (applyUniverseTransformation) {
   1017                 tmpMatrix.postConcat(mAnimator.mUniverseBackground.mUniverseTransform.getMatrix());
   1018             }
   1019 
   1020             if (spec != null && !spec.isNop()) {
   1021                 tmpMatrix.postScale(spec.scale, spec.scale);
   1022                 tmpMatrix.postTranslate(spec.offsetX, spec.offsetY);
   1023             }
   1024 
   1025             tmpMatrix.getValues(tmpFloats);
   1026 
   1027             mHaveMatrix = true;
   1028             mDsDx = tmpFloats[Matrix.MSCALE_X];
   1029             mDtDx = tmpFloats[Matrix.MSKEW_Y];
   1030             mDsDy = tmpFloats[Matrix.MSKEW_X];
   1031             mDtDy = tmpFloats[Matrix.MSCALE_Y];
   1032             float x = tmpFloats[Matrix.MTRANS_X];
   1033             float y = tmpFloats[Matrix.MTRANS_Y];
   1034             int w = frame.width();
   1035             int h = frame.height();
   1036             mWin.mShownFrame.set(x, y, x + w, y + h);
   1037 
   1038             mShownAlpha = mAlpha;
   1039             if (applyUniverseTransformation) {
   1040                 mShownAlpha *= mAnimator.mUniverseBackground.mUniverseTransform.getAlpha();
   1041             }
   1042         } else {
   1043             mWin.mShownFrame.set(mWin.mFrame);
   1044             if (mWin.mXOffset != 0 || mWin.mYOffset != 0) {
   1045                 mWin.mShownFrame.offset(mWin.mXOffset, mWin.mYOffset);
   1046             }
   1047             mShownAlpha = mAlpha;
   1048             mHaveMatrix = false;
   1049             mDsDx = mWin.mGlobalScale;
   1050             mDtDx = 0;
   1051             mDsDy = 0;
   1052             mDtDy = mWin.mGlobalScale;
   1053         }
   1054     }
   1055 
   1056     void applyDecorRect(final Rect decorRect) {
   1057         final WindowState w = mWin;
   1058         // Compute the offset of the window in relation to the decor rect.
   1059         final int offX = w.mXOffset + w.mFrame.left;
   1060         final int offY = w.mYOffset + w.mFrame.top;
   1061         // Initialize the decor rect to the entire frame.
   1062         w.mSystemDecorRect.set(0, 0, w.mFrame.width(), w.mFrame.height());
   1063         // Intersect with the decor rect, offsetted by window position.
   1064         w.mSystemDecorRect.intersect(decorRect.left-offX, decorRect.top-offY,
   1065                 decorRect.right-offX, decorRect.bottom-offY);
   1066         // If size compatibility is being applied to the window, the
   1067         // surface is scaled relative to the screen.  Also apply this
   1068         // scaling to the crop rect.  We aren't using the standard rect
   1069         // scale function because we want to round things to make the crop
   1070         // always round to a larger rect to ensure we don't crop too
   1071         // much and hide part of the window that should be seen.
   1072         if (w.mEnforceSizeCompat && w.mInvGlobalScale != 1.0f) {
   1073             final float scale = w.mInvGlobalScale;
   1074             w.mSystemDecorRect.left = (int) (w.mSystemDecorRect.left * scale - 0.5f);
   1075             w.mSystemDecorRect.top = (int) (w.mSystemDecorRect.top * scale - 0.5f);
   1076             w.mSystemDecorRect.right = (int) ((w.mSystemDecorRect.right+1) * scale - 0.5f);
   1077             w.mSystemDecorRect.bottom = (int) ((w.mSystemDecorRect.bottom+1) * scale - 0.5f);
   1078         }
   1079     }
   1080 
   1081     void updateSurfaceWindowCrop(final boolean recoveringMemory) {
   1082         final WindowState w = mWin;
   1083         DisplayInfo displayInfo = w.mDisplayContent.getDisplayInfo();
   1084 
   1085         // Need to recompute a new system decor rect each time.
   1086         if ((w.mAttrs.flags & LayoutParams.FLAG_SCALED) != 0) {
   1087             // Currently can't do this cropping for scaled windows.  We'll
   1088             // just keep the crop rect the same as the source surface.
   1089             w.mSystemDecorRect.set(0, 0, w.mRequestedWidth, w.mRequestedHeight);
   1090         } else if (!w.isDefaultDisplay()) {
   1091             // On a different display there is no system decor.  Crop the window
   1092             // by the screen boundaries.
   1093             w.mSystemDecorRect.set(0, 0, w.mCompatFrame.width(), w.mCompatFrame.height());
   1094             w.mSystemDecorRect.intersect(-w.mCompatFrame.left, -w.mCompatFrame.top,
   1095                     displayInfo.logicalWidth - w.mCompatFrame.left,
   1096                     displayInfo.logicalHeight - w.mCompatFrame.top);
   1097         } else if (w.mLayer >= mService.mSystemDecorLayer) {
   1098             // Above the decor layer is easy, just use the entire window.
   1099             // Unless we have a universe background...  in which case all the
   1100             // windows need to be cropped by the screen, so they don't cover
   1101             // the universe background.
   1102             if (mAnimator.mUniverseBackground == null) {
   1103                 w.mSystemDecorRect.set(0, 0, w.mCompatFrame.width(),
   1104                         w.mCompatFrame.height());
   1105             } else {
   1106                 applyDecorRect(mService.mScreenRect);
   1107             }
   1108         } else if (w.mAttrs.type == WindowManager.LayoutParams.TYPE_UNIVERSE_BACKGROUND
   1109                 || w.mDecorFrame.isEmpty()) {
   1110             // The universe background isn't cropped, nor windows without policy decor.
   1111             w.mSystemDecorRect.set(0, 0, w.mCompatFrame.width(),
   1112                     w.mCompatFrame.height());
   1113         } else {
   1114             // Crop to the system decor specified by policy.
   1115             applyDecorRect(w.mDecorFrame);
   1116         }
   1117 
   1118         if (!w.mSystemDecorRect.equals(w.mLastSystemDecorRect)) {
   1119             w.mLastSystemDecorRect.set(w.mSystemDecorRect);
   1120             try {
   1121                 if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
   1122                         "CROP " + w.mSystemDecorRect.toShortString(), null);
   1123                 mSurfaceControl.setWindowCrop(w.mSystemDecorRect);
   1124             } catch (RuntimeException e) {
   1125                 Slog.w(TAG, "Error setting crop surface of " + w
   1126                         + " crop=" + w.mSystemDecorRect.toShortString(), e);
   1127                 if (!recoveringMemory) {
   1128                     mService.reclaimSomeSurfaceMemoryLocked(this, "crop", true);
   1129                 }
   1130             }
   1131         }
   1132     }
   1133 
   1134     void setSurfaceBoundariesLocked(final boolean recoveringMemory) {
   1135         final WindowState w = mWin;
   1136         int width, height;
   1137         if ((w.mAttrs.flags & LayoutParams.FLAG_SCALED) != 0) {
   1138             // for a scaled surface, we just want to use
   1139             // the requested size.
   1140             width  = w.mRequestedWidth;
   1141             height = w.mRequestedHeight;
   1142         } else {
   1143             width = w.mCompatFrame.width();
   1144             height = w.mCompatFrame.height();
   1145         }
   1146 
   1147         if (width < 1) {
   1148             width = 1;
   1149         }
   1150         if (height < 1) {
   1151             height = 1;
   1152         }
   1153         final boolean surfaceResized = mSurfaceW != width || mSurfaceH != height;
   1154         if (surfaceResized) {
   1155             mSurfaceW = width;
   1156             mSurfaceH = height;
   1157         }
   1158 
   1159         final float left = w.mShownFrame.left;
   1160         final float top = w.mShownFrame.top;
   1161         if (mSurfaceX != left || mSurfaceY != top) {
   1162             try {
   1163                 if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
   1164                         "POS " + left + ", " + top, null);
   1165                 mSurfaceX = left;
   1166                 mSurfaceY = top;
   1167                 mSurfaceControl.setPosition(left, top);
   1168             } catch (RuntimeException e) {
   1169                 Slog.w(TAG, "Error positioning surface of " + w
   1170                         + " pos=(" + left
   1171                         + "," + top + ")", e);
   1172                 if (!recoveringMemory) {
   1173                     mService.reclaimSomeSurfaceMemoryLocked(this, "position", true);
   1174                 }
   1175             }
   1176         }
   1177 
   1178         if (surfaceResized) {
   1179             try {
   1180                 if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
   1181                         "SIZE " + width + "x" + height, null);
   1182                 mSurfaceResized = true;
   1183                 mSurfaceControl.setSize(width, height);
   1184                 final int displayId = w.mDisplayContent.getDisplayId();
   1185                 mAnimator.setPendingLayoutChanges(displayId,
   1186                         WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER);
   1187                 if ((w.mAttrs.flags & LayoutParams.FLAG_DIM_BEHIND) != 0) {
   1188                     w.getStack().startDimmingIfNeeded(this);
   1189                 }
   1190             } catch (RuntimeException e) {
   1191                 // If something goes wrong with the surface (such
   1192                 // as running out of memory), don't take down the
   1193                 // entire system.
   1194                 Slog.e(TAG, "Error resizing surface of " + w
   1195                         + " size=(" + width + "x" + height + ")", e);
   1196                 if (!recoveringMemory) {
   1197                     mService.reclaimSomeSurfaceMemoryLocked(this, "size", true);
   1198                 }
   1199             }
   1200         }
   1201 
   1202         updateSurfaceWindowCrop(recoveringMemory);
   1203     }
   1204 
   1205     public void prepareSurfaceLocked(final boolean recoveringMemory) {
   1206         final WindowState w = mWin;
   1207         if (mSurfaceControl == null) {
   1208             if (w.mOrientationChanging) {
   1209                 if (DEBUG_ORIENTATION) {
   1210                     Slog.v(TAG, "Orientation change skips hidden " + w);
   1211                 }
   1212                 w.mOrientationChanging = false;
   1213             }
   1214             return;
   1215         }
   1216 
   1217         boolean displayed = false;
   1218 
   1219         computeShownFrameLocked();
   1220 
   1221         setSurfaceBoundariesLocked(recoveringMemory);
   1222 
   1223         if (mIsWallpaper && !mWin.mWallpaperVisible) {
   1224             // Wallpaper is no longer visible and there is no wp target => hide it.
   1225             hide();
   1226         } else if (w.mAttachedHidden || !w.isOnScreen()) {
   1227             hide();
   1228             mAnimator.hideWallpapersLocked(w);
   1229 
   1230             // If we are waiting for this window to handle an
   1231             // orientation change, well, it is hidden, so
   1232             // doesn't really matter.  Note that this does
   1233             // introduce a potential glitch if the window
   1234             // becomes unhidden before it has drawn for the
   1235             // new orientation.
   1236             if (w.mOrientationChanging) {
   1237                 w.mOrientationChanging = false;
   1238                 if (DEBUG_ORIENTATION) Slog.v(TAG,
   1239                         "Orientation change skips hidden " + w);
   1240             }
   1241         } else if (mLastLayer != mAnimLayer
   1242                 || mLastAlpha != mShownAlpha
   1243                 || mLastDsDx != mDsDx
   1244                 || mLastDtDx != mDtDx
   1245                 || mLastDsDy != mDsDy
   1246                 || mLastDtDy != mDtDy
   1247                 || w.mLastHScale != w.mHScale
   1248                 || w.mLastVScale != w.mVScale
   1249                 || mLastHidden) {
   1250             displayed = true;
   1251             mLastAlpha = mShownAlpha;
   1252             mLastLayer = mAnimLayer;
   1253             mLastDsDx = mDsDx;
   1254             mLastDtDx = mDtDx;
   1255             mLastDsDy = mDsDy;
   1256             mLastDtDy = mDtDy;
   1257             w.mLastHScale = w.mHScale;
   1258             w.mLastVScale = w.mVScale;
   1259             if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
   1260                     "alpha=" + mShownAlpha + " layer=" + mAnimLayer
   1261                     + " matrix=[" + (mDsDx*w.mHScale)
   1262                     + "," + (mDtDx*w.mVScale)
   1263                     + "][" + (mDsDy*w.mHScale)
   1264                     + "," + (mDtDy*w.mVScale) + "]", null);
   1265             if (mSurfaceControl != null) {
   1266                 try {
   1267                     mSurfaceAlpha = mShownAlpha;
   1268                     mSurfaceControl.setAlpha(mShownAlpha);
   1269                     mSurfaceLayer = mAnimLayer;
   1270                     mSurfaceControl.setLayer(mAnimLayer);
   1271                     mSurfaceControl.setMatrix(
   1272                         mDsDx*w.mHScale, mDtDx*w.mVScale,
   1273                         mDsDy*w.mHScale, mDtDy*w.mVScale);
   1274 
   1275                     if (mLastHidden && mDrawState == HAS_DRAWN) {
   1276                         if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
   1277                                 "SHOW (performLayout)", null);
   1278                         if (WindowManagerService.DEBUG_VISIBILITY) Slog.v(TAG, "Showing " + w
   1279                                 + " during relayout");
   1280                         if (showSurfaceRobustlyLocked()) {
   1281                             mLastHidden = false;
   1282                             if (mIsWallpaper) {
   1283                                 mService.dispatchWallpaperVisibility(w, true);
   1284                             }
   1285                             // This draw means the difference between unique content and mirroring.
   1286                             // Run another pass through performLayout to set mHasContent in the
   1287                             // LogicalDisplay.
   1288                             mAnimator.setPendingLayoutChanges(w.getDisplayId(),
   1289                                     WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM);
   1290                         } else {
   1291                             w.mOrientationChanging = false;
   1292                         }
   1293                     }
   1294                     if (mSurfaceControl != null) {
   1295                         w.mToken.hasVisible = true;
   1296                     }
   1297                 } catch (RuntimeException e) {
   1298                     Slog.w(TAG, "Error updating surface in " + w, e);
   1299                     if (!recoveringMemory) {
   1300                         mService.reclaimSomeSurfaceMemoryLocked(this, "update", true);
   1301                     }
   1302                 }
   1303             }
   1304         } else {
   1305             if (DEBUG_ANIM && isAnimating()) {
   1306                 Slog.v(TAG, "prepareSurface: No changes in animation for " + this);
   1307             }
   1308             displayed = true;
   1309         }
   1310 
   1311         if (displayed) {
   1312             if (w.mOrientationChanging) {
   1313                 if (!w.isDrawnLw()) {
   1314                     mAnimator.mBulkUpdateParams &= ~SET_ORIENTATION_CHANGE_COMPLETE;
   1315                     mAnimator.mLastWindowFreezeSource = w;
   1316                     if (DEBUG_ORIENTATION) Slog.v(TAG,
   1317                             "Orientation continue waiting for draw in " + w);
   1318                 } else {
   1319                     w.mOrientationChanging = false;
   1320                     if (DEBUG_ORIENTATION) Slog.v(TAG, "Orientation change complete in " + w);
   1321                 }
   1322             }
   1323             w.mToken.hasVisible = true;
   1324         }
   1325     }
   1326 
   1327     void setTransparentRegionHintLocked(final Region region) {
   1328         if (mSurfaceControl == null) {
   1329             Slog.w(TAG, "setTransparentRegionHint: null mSurface after mHasSurface true");
   1330             return;
   1331         }
   1332         if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
   1333             ">>> OPEN TRANSACTION setTransparentRegion");
   1334         SurfaceControl.openTransaction();
   1335         try {
   1336             if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin,
   1337                     "transparentRegionHint=" + region, null);
   1338             mSurfaceControl.setTransparentRegionHint(region);
   1339         } finally {
   1340             SurfaceControl.closeTransaction();
   1341             if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
   1342                     "<<< CLOSE TRANSACTION setTransparentRegion");
   1343         }
   1344     }
   1345 
   1346     void setWallpaperOffset(RectF shownFrame) {
   1347         final int left = (int) shownFrame.left;
   1348         final int top = (int) shownFrame.top;
   1349         if (mSurfaceX != left || mSurfaceY != top) {
   1350             mSurfaceX = left;
   1351             mSurfaceY = top;
   1352             if (mAnimating) {
   1353                 // If this window (or its app token) is animating, then the position
   1354                 // of the surface will be re-computed on the next animation frame.
   1355                 // We can't poke it directly here because it depends on whatever
   1356                 // transformation is being applied by the animation.
   1357                 return;
   1358             }
   1359             if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
   1360                     ">>> OPEN TRANSACTION setWallpaperOffset");
   1361             SurfaceControl.openTransaction();
   1362             try {
   1363                 if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin,
   1364                         "POS " + left + ", " + top, null);
   1365                 mSurfaceControl.setPosition(mWin.mFrame.left + left, mWin.mFrame.top + top);
   1366                 updateSurfaceWindowCrop(false);
   1367             } catch (RuntimeException e) {
   1368                 Slog.w(TAG, "Error positioning surface of " + mWin
   1369                         + " pos=(" + left + "," + top + ")", e);
   1370             } finally {
   1371                 SurfaceControl.closeTransaction();
   1372                 if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
   1373                         "<<< CLOSE TRANSACTION setWallpaperOffset");
   1374             }
   1375         }
   1376     }
   1377 
   1378     // This must be called while inside a transaction.
   1379     boolean performShowLocked() {
   1380         if (mWin.isHiddenFromUserLocked()) {
   1381             Slog.w(TAG, "current user violation " + mService.mCurrentUserId + " trying to display "
   1382                     + this + ", type " + mWin.mAttrs.type + ", belonging to " + mWin.mOwnerUid);
   1383             return false;
   1384         }
   1385         if (DEBUG_VISIBILITY || (DEBUG_STARTING_WINDOW &&
   1386                 mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING)) {
   1387             RuntimeException e = null;
   1388             if (!WindowManagerService.HIDE_STACK_CRAWLS) {
   1389                 e = new RuntimeException();
   1390                 e.fillInStackTrace();
   1391             }
   1392             Slog.v(TAG, "performShow on " + this
   1393                     + ": mDrawState=" + mDrawState + " readyForDisplay="
   1394                     + mWin.isReadyForDisplayIgnoringKeyguard()
   1395                     + " starting=" + (mWin.mAttrs.type == TYPE_APPLICATION_STARTING)
   1396                     + " during animation: policyVis=" + mWin.mPolicyVisibility
   1397                     + " attHidden=" + mWin.mAttachedHidden
   1398                     + " tok.hiddenRequested="
   1399                     + (mWin.mAppToken != null ? mWin.mAppToken.hiddenRequested : false)
   1400                     + " tok.hidden="
   1401                     + (mWin.mAppToken != null ? mWin.mAppToken.hidden : false)
   1402                     + " animating=" + mAnimating
   1403                     + " tok animating="
   1404                     + (mAppAnimator != null ? mAppAnimator.animating : false), e);
   1405         }
   1406         if (mDrawState == READY_TO_SHOW && mWin.isReadyForDisplayIgnoringKeyguard()) {
   1407             if (SHOW_TRANSACTIONS || DEBUG_ORIENTATION)
   1408                 WindowManagerService.logSurface(mWin, "SHOW (performShowLocked)", null);
   1409             if (DEBUG_VISIBILITY || (DEBUG_STARTING_WINDOW &&
   1410                     mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING)) {
   1411                 Slog.v(TAG, "Showing " + this
   1412                         + " during animation: policyVis=" + mWin.mPolicyVisibility
   1413                         + " attHidden=" + mWin.mAttachedHidden
   1414                         + " tok.hiddenRequested="
   1415                         + (mWin.mAppToken != null ? mWin.mAppToken.hiddenRequested : false)
   1416                         + " tok.hidden="
   1417                         + (mWin.mAppToken != null ? mWin.mAppToken.hidden : false)
   1418                         + " animating=" + mAnimating
   1419                         + " tok animating="
   1420                         + (mAppAnimator != null ? mAppAnimator.animating : false));
   1421             }
   1422 
   1423             mService.enableScreenIfNeededLocked();
   1424 
   1425             applyEnterAnimationLocked();
   1426 
   1427             // Force the show in the next prepareSurfaceLocked() call.
   1428             mLastAlpha = -1;
   1429             if (DEBUG_SURFACE_TRACE || DEBUG_ANIM)
   1430                 Slog.v(TAG, "performShowLocked: mDrawState=HAS_DRAWN in " + this);
   1431             mDrawState = HAS_DRAWN;
   1432             mService.scheduleAnimationLocked();
   1433 
   1434             int i = mWin.mChildWindows.size();
   1435             while (i > 0) {
   1436                 i--;
   1437                 WindowState c = mWin.mChildWindows.get(i);
   1438                 if (c.mAttachedHidden) {
   1439                     c.mAttachedHidden = false;
   1440                     if (c.mWinAnimator.mSurfaceControl != null) {
   1441                         c.mWinAnimator.performShowLocked();
   1442                         // It hadn't been shown, which means layout not
   1443                         // performed on it, so now we want to make sure to
   1444                         // do a layout.  If called from within the transaction
   1445                         // loop, this will cause it to restart with a new
   1446                         // layout.
   1447                         c.mDisplayContent.layoutNeeded = true;
   1448                     }
   1449                 }
   1450             }
   1451 
   1452             if (mWin.mAttrs.type != TYPE_APPLICATION_STARTING
   1453                     && mWin.mAppToken != null) {
   1454                 mWin.mAppToken.firstWindowDrawn = true;
   1455 
   1456                 if (mWin.mAppToken.startingData != null) {
   1457                     if (WindowManagerService.DEBUG_STARTING_WINDOW ||
   1458                             WindowManagerService.DEBUG_ANIM) Slog.v(TAG,
   1459                             "Finish starting " + mWin.mToken
   1460                             + ": first real window is shown, no animation");
   1461                     // If this initial window is animating, stop it -- we
   1462                     // will do an animation to reveal it from behind the
   1463                     // starting window, so there is no need for it to also
   1464                     // be doing its own stuff.
   1465                     clearAnimation();
   1466                     mService.mFinishedStarting.add(mWin.mAppToken);
   1467                     mService.mH.sendEmptyMessage(H.FINISHED_STARTING);
   1468                 }
   1469                 mWin.mAppToken.updateReportedVisibilityLocked();
   1470             }
   1471 
   1472             return true;
   1473         }
   1474 
   1475         return false;
   1476     }
   1477 
   1478     /**
   1479      * Have the surface flinger show a surface, robustly dealing with
   1480      * error conditions.  In particular, if there is not enough memory
   1481      * to show the surface, then we will try to get rid of other surfaces
   1482      * in order to succeed.
   1483      *
   1484      * @return Returns true if the surface was successfully shown.
   1485      */
   1486     boolean showSurfaceRobustlyLocked() {
   1487         try {
   1488             if (mSurfaceControl != null) {
   1489                 mSurfaceShown = true;
   1490                 mSurfaceControl.show();
   1491                 if (mWin.mTurnOnScreen) {
   1492                     if (DEBUG_VISIBILITY) Slog.v(TAG,
   1493                             "Show surface turning screen on: " + mWin);
   1494                     mWin.mTurnOnScreen = false;
   1495                     mAnimator.mBulkUpdateParams |= SET_TURN_ON_SCREEN;
   1496                 }
   1497             }
   1498             return true;
   1499         } catch (RuntimeException e) {
   1500             Slog.w(TAG, "Failure showing surface " + mSurfaceControl + " in " + mWin, e);
   1501         }
   1502 
   1503         mService.reclaimSomeSurfaceMemoryLocked(this, "show", true);
   1504 
   1505         return false;
   1506     }
   1507 
   1508     void applyEnterAnimationLocked() {
   1509         final int transit;
   1510         if (mEnterAnimationPending) {
   1511             mEnterAnimationPending = false;
   1512             transit = WindowManagerPolicy.TRANSIT_ENTER;
   1513         } else {
   1514             transit = WindowManagerPolicy.TRANSIT_SHOW;
   1515         }
   1516         applyAnimationLocked(transit, true);
   1517         //TODO (multidisplay): Magnification is supported only for the default display.
   1518         if (mService.mDisplayMagnifier != null
   1519                 && mWin.getDisplayId() == Display.DEFAULT_DISPLAY) {
   1520             mService.mDisplayMagnifier.onWindowTransitionLocked(mWin, transit);
   1521         }
   1522     }
   1523 
   1524     /**
   1525      * Choose the correct animation and set it to the passed WindowState.
   1526      * @param transit If AppTransition.TRANSIT_PREVIEW_DONE and the app window has been drawn
   1527      *      then the animation will be app_starting_exit. Any other value loads the animation from
   1528      *      the switch statement below.
   1529      * @param isEntrance The animation type the last time this was called. Used to keep from
   1530      *      loading the same animation twice.
   1531      * @return true if an animation has been loaded.
   1532      */
   1533     boolean applyAnimationLocked(int transit, boolean isEntrance) {
   1534         if (mLocalAnimating && mAnimationIsEntrance == isEntrance) {
   1535             // If we are trying to apply an animation, but already running
   1536             // an animation of the same type, then just leave that one alone.
   1537             return true;
   1538         }
   1539 
   1540         // Only apply an animation if the display isn't frozen.  If it is
   1541         // frozen, there is no reason to animate and it can cause strange
   1542         // artifacts when we unfreeze the display if some different animation
   1543         // is running.
   1544         if (mService.okToDisplay()) {
   1545             int anim = mPolicy.selectAnimationLw(mWin, transit);
   1546             int attr = -1;
   1547             Animation a = null;
   1548             if (anim != 0) {
   1549                 a = anim != -1 ? AnimationUtils.loadAnimation(mContext, anim) : null;
   1550             } else {
   1551                 switch (transit) {
   1552                     case WindowManagerPolicy.TRANSIT_ENTER:
   1553                         attr = com.android.internal.R.styleable.WindowAnimation_windowEnterAnimation;
   1554                         break;
   1555                     case WindowManagerPolicy.TRANSIT_EXIT:
   1556                         attr = com.android.internal.R.styleable.WindowAnimation_windowExitAnimation;
   1557                         break;
   1558                     case WindowManagerPolicy.TRANSIT_SHOW:
   1559                         attr = com.android.internal.R.styleable.WindowAnimation_windowShowAnimation;
   1560                         break;
   1561                     case WindowManagerPolicy.TRANSIT_HIDE:
   1562                         attr = com.android.internal.R.styleable.WindowAnimation_windowHideAnimation;
   1563                         break;
   1564                 }
   1565                 if (attr >= 0) {
   1566                     a = mService.mAppTransition.loadAnimation(mWin.mAttrs, attr);
   1567                 }
   1568             }
   1569             if (WindowManagerService.DEBUG_ANIM) Slog.v(TAG,
   1570                     "applyAnimation: win=" + this
   1571                     + " anim=" + anim + " attr=0x" + Integer.toHexString(attr)
   1572                     + " a=" + a
   1573                     + " transit=" + transit
   1574                     + " isEntrance=" + isEntrance + " Callers " + Debug.getCallers(3));
   1575             if (a != null) {
   1576                 if (WindowManagerService.DEBUG_ANIM) {
   1577                     RuntimeException e = null;
   1578                     if (!WindowManagerService.HIDE_STACK_CRAWLS) {
   1579                         e = new RuntimeException();
   1580                         e.fillInStackTrace();
   1581                     }
   1582                     Slog.v(TAG, "Loaded animation " + a + " for " + this, e);
   1583                 }
   1584                 setAnimation(a);
   1585                 mAnimationIsEntrance = isEntrance;
   1586             }
   1587         } else {
   1588             clearAnimation();
   1589         }
   1590 
   1591         return mAnimation != null;
   1592     }
   1593 
   1594     public void dump(PrintWriter pw, String prefix, boolean dumpAll) {
   1595         if (mAnimating || mLocalAnimating || mAnimationIsEntrance
   1596                 || mAnimation != null) {
   1597             pw.print(prefix); pw.print("mAnimating="); pw.print(mAnimating);
   1598                     pw.print(" mLocalAnimating="); pw.print(mLocalAnimating);
   1599                     pw.print(" mAnimationIsEntrance="); pw.print(mAnimationIsEntrance);
   1600                     pw.print(" mAnimation="); pw.println(mAnimation);
   1601         }
   1602         if (mHasTransformation || mHasLocalTransformation) {
   1603             pw.print(prefix); pw.print("XForm: has=");
   1604                     pw.print(mHasTransformation);
   1605                     pw.print(" hasLocal="); pw.print(mHasLocalTransformation);
   1606                     pw.print(" "); mTransformation.printShortString(pw);
   1607                     pw.println();
   1608         }
   1609         if (mSurfaceControl != null) {
   1610             if (dumpAll) {
   1611                 pw.print(prefix); pw.print("mSurface="); pw.println(mSurfaceControl);
   1612                 pw.print(prefix); pw.print("mDrawState=");
   1613                 pw.print(drawStateToString(mDrawState));
   1614                 pw.print(" mLastHidden="); pw.println(mLastHidden);
   1615             }
   1616             pw.print(prefix); pw.print("Surface: shown="); pw.print(mSurfaceShown);
   1617                     pw.print(" layer="); pw.print(mSurfaceLayer);
   1618                     pw.print(" alpha="); pw.print(mSurfaceAlpha);
   1619                     pw.print(" rect=("); pw.print(mSurfaceX);
   1620                     pw.print(","); pw.print(mSurfaceY);
   1621                     pw.print(") "); pw.print(mSurfaceW);
   1622                     pw.print(" x "); pw.println(mSurfaceH);
   1623         }
   1624         if (mPendingDestroySurface != null) {
   1625             pw.print(prefix); pw.print("mPendingDestroySurface=");
   1626                     pw.println(mPendingDestroySurface);
   1627         }
   1628         if (mSurfaceResized || mSurfaceDestroyDeferred) {
   1629             pw.print(prefix); pw.print("mSurfaceResized="); pw.print(mSurfaceResized);
   1630                     pw.print(" mSurfaceDestroyDeferred="); pw.println(mSurfaceDestroyDeferred);
   1631         }
   1632         if (mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_UNIVERSE_BACKGROUND) {
   1633             pw.print(prefix); pw.print("mUniverseTransform=");
   1634                     mUniverseTransform.printShortString(pw);
   1635                     pw.println();
   1636         }
   1637         if (mShownAlpha != 1 || mAlpha != 1 || mLastAlpha != 1) {
   1638             pw.print(prefix); pw.print("mShownAlpha="); pw.print(mShownAlpha);
   1639                     pw.print(" mAlpha="); pw.print(mAlpha);
   1640                     pw.print(" mLastAlpha="); pw.println(mLastAlpha);
   1641         }
   1642         if (mHaveMatrix || mWin.mGlobalScale != 1) {
   1643             pw.print(prefix); pw.print("mGlobalScale="); pw.print(mWin.mGlobalScale);
   1644                     pw.print(" mDsDx="); pw.print(mDsDx);
   1645                     pw.print(" mDtDx="); pw.print(mDtDx);
   1646                     pw.print(" mDsDy="); pw.print(mDsDy);
   1647                     pw.print(" mDtDy="); pw.println(mDtDy);
   1648         }
   1649     }
   1650 
   1651     @Override
   1652     public String toString() {
   1653         StringBuffer sb = new StringBuffer("WindowStateAnimator{");
   1654         sb.append(Integer.toHexString(System.identityHashCode(this)));
   1655         sb.append(' ');
   1656         sb.append(mWin.mAttrs.getTitle());
   1657         sb.append('}');
   1658         return sb.toString();
   1659     }
   1660 }
   1661