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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.wm;
import static android.view.WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
import static android.view.WindowManager.LayoutParams.FLAG_SCALED;
import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY;
import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD;
import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
import static android.view.WindowManager.TRANSIT_NONE;
import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM;
import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ANIM;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_LAYOUT_REPEATS;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ORIENTATION;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_STARTING_WINDOW;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_STARTING_WINDOW_VERBOSE;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY;
import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_CROP;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_LIGHT_TRANSACTIONS;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_SURFACE_ALLOC;
import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
import static com.android.server.wm.WindowManagerService.TYPE_LAYER_MULTIPLIER;
import static com.android.server.wm.WindowManagerService.logWithStack;
import static com.android.server.wm.WindowStateAnimatorProto.DRAW_STATE;
import static com.android.server.wm.WindowStateAnimatorProto.LAST_CLIP_RECT;
import static com.android.server.wm.WindowStateAnimatorProto.SURFACE;
import static com.android.server.wm.WindowStateAnimatorProto.SYSTEM_DECOR_RECT;
import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
import android.content.Context;
import android.graphics.Matrix;
import android.graphics.PixelFormat;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.Region;
import android.os.Debug;
import android.os.Trace;
import android.util.Slog;
import android.util.proto.ProtoOutputStream;
import android.view.DisplayInfo;
import android.view.Surface.OutOfResourcesException;
import android.view.SurfaceControl;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import com.android.server.policy.WindowManagerPolicy;
import java.io.PrintWriter;
/**
* Keep track of animations and surface operations for a single WindowState.
**/
class WindowStateAnimator {
static final String TAG = TAG_WITH_CLASS_NAME ? "WindowStateAnimator" : TAG_WM;
static final int WINDOW_FREEZE_LAYER = TYPE_LAYER_MULTIPLIER * 200;
static final int PRESERVED_SURFACE_LAYER = 1;
/**
* Mode how the window gets clipped by the stack bounds during an animation: The clipping should
* be applied after applying the animation transformation, i.e. the stack bounds don't move
* during the animation.
*/
static final int STACK_CLIP_AFTER_ANIM = 0;
/**
* Mode how the window gets clipped by the stack bounds: The clipping should be applied before
* applying the animation transformation, i.e. the stack bounds move with the window.
*/
static final int STACK_CLIP_BEFORE_ANIM = 1;
/**
* Mode how window gets clipped by the stack bounds during an animation: Don't clip the window
* by the stack bounds.
*/
static final int STACK_CLIP_NONE = 2;
// Unchanging local convenience fields.
final WindowManagerService mService;
final WindowState mWin;
final WindowAnimator mAnimator;
final Session mSession;
final WindowManagerPolicy mPolicy;
final Context mContext;
final boolean mIsWallpaper;
private final WallpaperController mWallpaperControllerLocked;
boolean mAnimationIsEntrance;
/**
* Set when we have changed the size of the surface, to know that
* we must tell them application to resize (and thus redraw itself).
*/
boolean mSurfaceResized;
/**
* Whether we should inform the client on next relayoutWindow that
* the surface has been resized since last time.
*/
boolean mReportSurfaceResized;
WindowSurfaceController mSurfaceController;
private WindowSurfaceController mPendingDestroySurface;
/**
* Set if the client has asked that the destroy of its surface be delayed
* until it explicitly says it is okay.
*/
boolean mSurfaceDestroyDeferred;
private boolean mDestroyPreservedSurfaceUponRedraw;
float mShownAlpha = 0;
float mAlpha = 0;
float mLastAlpha = 0;
Rect mTmpClipRect = new Rect();
Rect mLastClipRect = new Rect();
Rect mLastFinalClipRect = new Rect();
Rect mTmpStackBounds = new Rect();
private Rect mTmpAnimatingBounds = new Rect();
private Rect mTmpSourceBounds = new Rect();
/**
* This is rectangle of the window's surface that is not covered by
* system decorations.
*/
private final Rect mSystemDecorRect = new Rect();
float mDsDx=1, mDtDx=0, mDsDy=0, mDtDy=1;
private float mLastDsDx=1, mLastDtDx=0, mLastDsDy=0, mLastDtDy=1;
boolean mHaveMatrix;
// Set to true if, when the window gets displayed, it should perform
// an enter animation.
boolean mEnterAnimationPending;
/** Used to indicate that this window is undergoing an enter animation. Used for system
* windows to make the callback to View.dispatchOnWindowShownCallback(). Set when the
* window is first added or shown, cleared when the callback has been made. */
boolean mEnteringAnimation;
private final SurfaceControl.Transaction mTmpTransaction = new SurfaceControl.Transaction();
/** The pixel format of the underlying SurfaceControl */
int mSurfaceFormat;
/** This is set when there is no Surface */
static final int NO_SURFACE = 0;
/** This is set after the Surface has been created but before the window has been drawn. During
* this time the surface is hidden. */
static final int DRAW_PENDING = 1;
/** This is set after the window has finished drawing for the first time but before its surface
* is shown. The surface will be displayed when the next layout is run. */
static final int COMMIT_DRAW_PENDING = 2;
/** This is set during the time after the window's drawing has been committed, and before its
* surface is actually shown. It is used to delay showing the surface until all windows in a
* token are ready to be shown. */
static final int READY_TO_SHOW = 3;
/** Set when the window has been shown in the screen the first time. */
static final int HAS_DRAWN = 4;
String drawStateToString() {
switch (mDrawState) {
case NO_SURFACE: return "NO_SURFACE";
case DRAW_PENDING: return "DRAW_PENDING";
case COMMIT_DRAW_PENDING: return "COMMIT_DRAW_PENDING";
case READY_TO_SHOW: return "READY_TO_SHOW";
case HAS_DRAWN: return "HAS_DRAWN";
default: return Integer.toString(mDrawState);
}
}
int mDrawState;
/** Was this window last hidden? */
boolean mLastHidden;
int mAttrType;
boolean mForceScaleUntilResize;
// WindowState.mHScale and WindowState.mVScale contain the
// scale according to client specified layout parameters (e.g.
// one layout size, with another surface size, creates such scaling).
// Here we track an additional scaling factor used to follow stack
// scaling (as in the case of the Pinned stack animation).
float mExtraHScale = (float) 1.0;
float mExtraVScale = (float) 1.0;
// An offset in pixel of the surface contents from the window position. Used for Wallpaper
// to provide the effect of scrolling within a large surface. We just use these values as
// a cache.
int mXOffset = 0;
int mYOffset = 0;
/**
* A flag to determine if the WSA needs to offset its position to compensate for the stack's
* position update before the WSA surface has resized.
*/
private boolean mOffsetPositionForStackResize;
private final Rect mTmpSize = new Rect();
private final SurfaceControl.Transaction mReparentTransaction = new SurfaceControl.Transaction();
// Used to track whether we have called detach children on the way to invisibility, in which
// case we need to give the client a new Surface if it lays back out to a visible state.
boolean mChildrenDetached = false;
// Set to true after the first frame of the Pinned stack animation
// and reset after the last to ensure we only reset mForceScaleUntilResize
// once per animation.
boolean mPipAnimationStarted = false;
private final Point mTmpPos = new Point();
WindowStateAnimator(final WindowState win) {
final WindowManagerService service = win.mWmService;
mService = service;
mAnimator = service.mAnimator;
mPolicy = service.mPolicy;
mContext = service.mContext;
mWin = win;
mSession = win.mSession;
mAttrType = win.mAttrs.type;
mIsWallpaper = win.mIsWallpaper;
mWallpaperControllerLocked = win.getDisplayContent().mWallpaperController;
}
void onAnimationFinished() {
// Done animating, clean up.
if (DEBUG_ANIM) Slog.v(
TAG, "Animation done in " + this + ": exiting=" + mWin.mAnimatingExit
+ ", reportedVisible="
+ (mWin.mAppToken != null ? mWin.mAppToken.reportedVisible : false));
mWin.checkPolicyVisibilityChange();
final DisplayContent displayContent = mWin.getDisplayContent();
if (mAttrType == LayoutParams.TYPE_STATUS_BAR && mWin.isVisibleByPolicy()) {
// Upon completion of a not-visible to visible status bar animation a relayout is
// required.
if (displayContent != null) {
displayContent.setLayoutNeeded();
}
}
mWin.onExitAnimationDone();
final int displayId = mWin.getDisplayId();
int pendingLayoutChanges = FINISH_LAYOUT_REDO_ANIM;
if (displayContent.mWallpaperController.isWallpaperTarget(mWin)) {
pendingLayoutChanges |= FINISH_LAYOUT_REDO_WALLPAPER;
}
mAnimator.setPendingLayoutChanges(displayId, pendingLayoutChanges);
if (DEBUG_LAYOUT_REPEATS)
mService.mWindowPlacerLocked.debugLayoutRepeats(
"WindowStateAnimator", mAnimator.getPendingLayoutChanges(displayId));
if (mWin.mAppToken != null) {
mWin.mAppToken.updateReportedVisibilityLocked();
}
}
void hide(SurfaceControl.Transaction transaction, String reason) {
if (!mLastHidden) {
//dump();
mLastHidden = true;
// We may have a preserved surface which we no longer need. If there was a quick
// VISIBLE, GONE, VISIBLE, GONE sequence, the surface may never draw, so we don't mark
// it to be destroyed in prepareSurfaceLocked.
markPreservedSurfaceForDestroy();
if (mSurfaceController != null) {
mSurfaceController.hide(transaction, reason);
}
}
}
void hide(String reason) {
hide(mTmpTransaction, reason);
SurfaceControl.mergeToGlobalTransaction(mTmpTransaction);
}
boolean finishDrawingLocked() {
final boolean startingWindow =
mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
if (DEBUG_STARTING_WINDOW && startingWindow) {
Slog.v(TAG, "Finishing drawing window " + mWin + ": mDrawState="
+ drawStateToString());
}
boolean layoutNeeded = false;
if (mDrawState == DRAW_PENDING) {
if (DEBUG_ANIM || SHOW_TRANSACTIONS || DEBUG_ORIENTATION)
Slog.v(TAG, "finishDrawingLocked: mDrawState=COMMIT_DRAW_PENDING " + mWin + " in "
+ mSurfaceController);
if (DEBUG_STARTING_WINDOW && startingWindow) {
Slog.v(TAG, "Draw state now committed in " + mWin);
}
mDrawState = COMMIT_DRAW_PENDING;
layoutNeeded = true;
}
return layoutNeeded;
}
// This must be called while inside a transaction.
boolean commitFinishDrawingLocked() {
if (DEBUG_STARTING_WINDOW_VERBOSE &&
mWin.mAttrs.type == WindowManager.LayoutParams.TYPE_APPLICATION_STARTING) {
Slog.i(TAG, "commitFinishDrawingLocked: " + mWin + " cur mDrawState="
+ drawStateToString());
}
if (mDrawState != COMMIT_DRAW_PENDING && mDrawState != READY_TO_SHOW) {
return false;
}
if (DEBUG_ANIM) {
Slog.i(TAG, "commitFinishDrawingLocked: mDrawState=READY_TO_SHOW " + mSurfaceController);
}
mDrawState = READY_TO_SHOW;
boolean result = false;
final AppWindowToken atoken = mWin.mAppToken;
if (atoken == null || atoken.canShowWindows()
|| mWin.mAttrs.type == TYPE_APPLICATION_STARTING) {
result = mWin.performShowLocked();
}
return result;
}
void preserveSurfaceLocked() {
if (mDestroyPreservedSurfaceUponRedraw) {
// This could happen when switching the surface mode very fast. For example,
// we preserved a surface when dragResizing changed to true. Then before the
// preserved surface is removed, dragResizing changed to false again.
// In this case, we need to leave the preserved surface alone, and destroy
// the actual surface, so that the createSurface call could create a surface
// of the proper size. The preserved surface will still be removed when client
// finishes drawing to the new surface.
mSurfaceDestroyDeferred = false;
destroySurfaceLocked();
mSurfaceDestroyDeferred = true;
return;
}
if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin, "SET FREEZE LAYER", false);
if (mSurfaceController != null) {
// Our SurfaceControl is always at layer 0 within the parent Surface managed by
// window-state. We want this old Surface to stay on top of the new one
// until we do the swap, so we place it at a positive layer.
mSurfaceController.mSurfaceControl.setLayer(PRESERVED_SURFACE_LAYER);
}
mDestroyPreservedSurfaceUponRedraw = true;
mSurfaceDestroyDeferred = true;
destroySurfaceLocked();
}
void destroyPreservedSurfaceLocked() {
if (!mDestroyPreservedSurfaceUponRedraw) {
return;
}
if (mSurfaceController != null) {
if (mPendingDestroySurface != null) {
// If we are preserving a surface but we aren't relaunching that means
// we are just doing an in-place switch. In that case any SurfaceFlinger side
// child layers need to be reparented to the new surface to make this
// transparent to the app.
if (mWin.mAppToken == null || mWin.mAppToken.isRelaunching() == false) {
mReparentTransaction.reparentChildren(mPendingDestroySurface.mSurfaceControl,
mSurfaceController.mSurfaceControl.getHandle())
.apply();
}
}
}
destroyDeferredSurfaceLocked();
mDestroyPreservedSurfaceUponRedraw = false;
}
void markPreservedSurfaceForDestroy() {
if (mDestroyPreservedSurfaceUponRedraw
&& !mService.mDestroyPreservedSurface.contains(mWin)) {
mService.mDestroyPreservedSurface.add(mWin);
}
}
private int getLayerStack() {
return mWin.getDisplayContent().getDisplay().getLayerStack();
}
void resetDrawState() {
mDrawState = DRAW_PENDING;
if (mWin.mAppToken == null) {
return;
}
if (!mWin.mAppToken.isSelfAnimating()) {
mWin.mAppToken.clearAllDrawn();
} else {
// Currently animating, persist current state of allDrawn until animation
// is complete.
mWin.mAppToken.deferClearAllDrawn = true;
}
}
WindowSurfaceController createSurfaceLocked(int windowType, int ownerUid) {
final WindowState w = mWin;
if (mSurfaceController != null) {
return mSurfaceController;
}
mChildrenDetached = false;
if ((mWin.mAttrs.privateFlags & PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY) != 0) {
windowType = SurfaceControl.WINDOW_TYPE_DONT_SCREENSHOT;
}
w.setHasSurface(false);
if (DEBUG_ANIM || DEBUG_ORIENTATION) Slog.i(TAG,
"createSurface " + this + ": mDrawState=DRAW_PENDING");
resetDrawState();
mService.makeWindowFreezingScreenIfNeededLocked(w);
int flags = SurfaceControl.HIDDEN;
final WindowManager.LayoutParams attrs = w.mAttrs;
if (mService.isSecureLocked(w)) {
flags |= SurfaceControl.SECURE;
}
calculateSurfaceBounds(w, attrs, mTmpSize);
final int width = mTmpSize.width();
final int height = mTmpSize.height();
if (DEBUG_VISIBILITY) {
Slog.v(TAG, "Creating surface in session "
+ mSession.mSurfaceSession + " window " + this
+ " w=" + width + " h=" + height
+ " x=" + mTmpSize.left + " y=" + mTmpSize.top
+ " format=" + attrs.format + " flags=" + flags);
}
// We may abort, so initialize to defaults.
mLastClipRect.set(0, 0, 0, 0);
// Set up surface control with initial size.
try {
final boolean isHwAccelerated = (attrs.flags & FLAG_HARDWARE_ACCELERATED) != 0;
final int format = isHwAccelerated ? PixelFormat.TRANSLUCENT : attrs.format;
if (!PixelFormat.formatHasAlpha(attrs.format)
// Don't make surface with surfaceInsets opaque as they display a
// translucent shadow.
&& attrs.surfaceInsets.left == 0
&& attrs.surfaceInsets.top == 0
&& attrs.surfaceInsets.right == 0
&& attrs.surfaceInsets.bottom == 0
// Don't make surface opaque when resizing to reduce the amount of
// artifacts shown in areas the app isn't drawing content to.
&& !w.isDragResizing()) {
flags |= SurfaceControl.OPAQUE;
}
mSurfaceController = new WindowSurfaceController(mSession.mSurfaceSession,
attrs.getTitle().toString(), width, height, format, flags, this,
windowType, ownerUid);
mSurfaceController.setColorSpaceAgnostic((attrs.privateFlags
& WindowManager.LayoutParams.PRIVATE_FLAG_COLOR_SPACE_AGNOSTIC) != 0);
setOffsetPositionForStackResize(false);
mSurfaceFormat = format;
w.setHasSurface(true);
if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
Slog.i(TAG, " CREATE SURFACE "
+ mSurfaceController + " IN SESSION "
+ mSession.mSurfaceSession
+ ": pid=" + mSession.mPid + " format="
+ attrs.format + " flags=0x"
+ Integer.toHexString(flags)
+ " / " + this);
}
} catch (OutOfResourcesException e) {
Slog.w(TAG, "OutOfResourcesException creating surface");
mService.mRoot.reclaimSomeSurfaceMemory(this, "create", true);
mDrawState = NO_SURFACE;
return null;
} catch (Exception e) {
Slog.e(TAG, "Exception creating surface (parent dead?)", e);
mDrawState = NO_SURFACE;
return null;
}
if (WindowManagerService.localLOGV) Slog.v(TAG, "Got surface: " + mSurfaceController
+ ", set left=" + w.getFrameLw().left + " top=" + w.getFrameLw().top);
if (SHOW_LIGHT_TRANSACTIONS) {
Slog.i(TAG, ">>> OPEN TRANSACTION createSurfaceLocked");
WindowManagerService.logSurface(w, "CREATE pos=("
+ w.getFrameLw().left + "," + w.getFrameLw().top + ") ("
+ width + "x" + height + ")" + " HIDE", false);
}
mLastHidden = true;
if (WindowManagerService.localLOGV) Slog.v(TAG, "Created surface " + this);
return mSurfaceController;
}
private void calculateSurfaceBounds(WindowState w, LayoutParams attrs, Rect outSize) {
outSize.setEmpty();
if ((attrs.flags & FLAG_SCALED) != 0) {
// For a scaled surface, we always want the requested size.
outSize.right = w.mRequestedWidth;
outSize.bottom = w.mRequestedHeight;
} else {
// When we're doing a drag-resizing, request a surface that's fullscreen size,
// so that we don't need to reallocate during the process. This also prevents
// buffer drops due to size mismatch.
if (w.isDragResizing()) {
final DisplayInfo displayInfo = w.getDisplayInfo();
outSize.right = displayInfo.logicalWidth;
outSize.bottom = displayInfo.logicalHeight;
} else {
w.getCompatFrameSize(outSize);
}
}
// Something is wrong and SurfaceFlinger will not like this, try to revert to sane values.
// This doesn't necessarily mean that there is an error in the system. The sizes might be
// incorrect, because it is before the first layout or draw.
if (outSize.width() < 1) {
outSize.right = 1;
}
if (outSize.height() < 1) {
outSize.bottom = 1;
}
// Adjust for surface insets.
outSize.inset(-attrs.surfaceInsets.left, -attrs.surfaceInsets.top,
-attrs.surfaceInsets.right, -attrs.surfaceInsets.bottom);
}
boolean hasSurface() {
return mSurfaceController != null && mSurfaceController.hasSurface();
}
void destroySurfaceLocked() {
final AppWindowToken wtoken = mWin.mAppToken;
if (wtoken != null) {
if (mWin == wtoken.startingWindow) {
wtoken.startingDisplayed = false;
}
}
if (mSurfaceController == null) {
return;
}
// When destroying a surface we want to make sure child windows are hidden. If we are
// preserving the surface until redraw though we intend to swap it out with another surface
// for resizing. In this case the window always remains visible to the user and the child
// windows should likewise remain visible.
if (!mDestroyPreservedSurfaceUponRedraw) {
mWin.mHidden = true;
}
try {
if (DEBUG_VISIBILITY) logWithStack(TAG, "Window " + this + " destroying surface "
+ mSurfaceController + ", session " + mSession);
if (mSurfaceDestroyDeferred) {
if (mSurfaceController != null && mPendingDestroySurface != mSurfaceController) {
if (mPendingDestroySurface != null) {
if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
WindowManagerService.logSurface(mWin, "DESTROY PENDING", true);
}
mPendingDestroySurface.destroyNotInTransaction();
}
mPendingDestroySurface = mSurfaceController;
}
} else {
if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
WindowManagerService.logSurface(mWin, "DESTROY", true);
}
destroySurface();
}
// Don't hide wallpaper if we're deferring the surface destroy
// because of a surface change.
if (!mDestroyPreservedSurfaceUponRedraw) {
mWallpaperControllerLocked.hideWallpapers(mWin);
}
} catch (RuntimeException e) {
Slog.w(TAG, "Exception thrown when destroying Window " + this
+ " surface " + mSurfaceController + " session " + mSession + ": " + e.toString());
}
// Whether the surface was preserved (and copied to mPendingDestroySurface) or not, it
// needs to be cleared to match the WindowState.mHasSurface state. It is also necessary
// so it can be recreated successfully in mPendingDestroySurface case.
mWin.setHasSurface(false);
if (mSurfaceController != null) {
mSurfaceController.setShown(false);
}
mSurfaceController = null;
mDrawState = NO_SURFACE;
}
void destroyDeferredSurfaceLocked() {
try {
if (mPendingDestroySurface != null) {
if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) {
WindowManagerService.logSurface(mWin, "DESTROY PENDING", true);
}
mPendingDestroySurface.destroyNotInTransaction();
// Don't hide wallpaper if we're destroying a deferred surface
// after a surface mode change.
if (!mDestroyPreservedSurfaceUponRedraw) {
mWallpaperControllerLocked.hideWallpapers(mWin);
}
}
} catch (RuntimeException e) {
Slog.w(TAG, "Exception thrown when destroying Window "
+ this + " surface " + mPendingDestroySurface
+ " session " + mSession + ": " + e.toString());
}
mSurfaceDestroyDeferred = false;
mPendingDestroySurface = null;
}
void computeShownFrameLocked() {
final int displayId = mWin.getDisplayId();
final ScreenRotationAnimation screenRotationAnimation =
mAnimator.getScreenRotationAnimationLocked(displayId);
final boolean windowParticipatesInScreenRotationAnimation =
!mWin.mForceSeamlesslyRotate;
final boolean screenAnimation = screenRotationAnimation != null
&& screenRotationAnimation.isAnimating()
&& windowParticipatesInScreenRotationAnimation;
if (screenAnimation) {
// cache often used attributes locally
final Rect frame = mWin.getFrameLw();
final float tmpFloats[] = mService.mTmpFloats;
final Matrix tmpMatrix = mWin.mTmpMatrix;
// Compute the desired transformation.
if (screenRotationAnimation.isRotating()) {
// If we are doing a screen animation, the global rotation
// applied to windows can result in windows that are carefully
// aligned with each other to slightly separate, allowing you
// to see what is behind them. An unsightly mess. This...
// thing... magically makes it call good: scale each window
// slightly (two pixels larger in each dimension, from the
// window's center).
final float w = frame.width();
final float h = frame.height();
if (w>=1 && h>=1) {
tmpMatrix.setScale(1 + 2/w, 1 + 2/h, w/2, h/2);
} else {
tmpMatrix.reset();
}
} else {
tmpMatrix.reset();
}
tmpMatrix.postScale(mWin.mGlobalScale, mWin.mGlobalScale);
// WindowState.prepareSurfaces expands for surface insets (in order they don't get
// clipped by the WindowState surface), so we need to go into the other direction here.
tmpMatrix.postTranslate(mWin.mAttrs.surfaceInsets.left,
mWin.mAttrs.surfaceInsets.top);
// "convert" it into SurfaceFlinger's format
// (a 2x2 matrix + an offset)
// Here we must not transform the position of the surface
// since it is already included in the transformation.
//Slog.i(TAG_WM, "Transform: " + matrix);
mHaveMatrix = true;
tmpMatrix.getValues(tmpFloats);
mDsDx = tmpFloats[Matrix.MSCALE_X];
mDtDx = tmpFloats[Matrix.MSKEW_Y];
mDtDy = tmpFloats[Matrix.MSKEW_X];
mDsDy = tmpFloats[Matrix.MSCALE_Y];
// Now set the alpha... but because our current hardware
// can't do alpha transformation on a non-opaque surface,
// turn it off if we are running an animation that is also
// transforming since it is more important to have that
// animation be smooth.
mShownAlpha = mAlpha;
if (!mService.mLimitedAlphaCompositing
|| (!PixelFormat.formatHasAlpha(mWin.mAttrs.format)
|| (mWin.isIdentityMatrix(mDsDx, mDtDx, mDtDy, mDsDy)))) {
//Slog.i(TAG_WM, "Applying alpha transform");
if (screenAnimation) {
mShownAlpha *= screenRotationAnimation.getEnterTransformation().getAlpha();
}
} else {
//Slog.i(TAG_WM, "Not applying alpha transform");
}
if ((DEBUG_ANIM || WindowManagerService.localLOGV)
&& (mShownAlpha == 1.0 || mShownAlpha == 0.0)) Slog.v(
TAG, "computeShownFrameLocked: Animating " + this + " mAlpha=" + mAlpha
+ " screen=" + (screenAnimation ?
screenRotationAnimation.getEnterTransformation().getAlpha() : "null"));
return;
} else if (mIsWallpaper && mService.mRoot.mWallpaperActionPending) {
return;
} else if (mWin.isDragResizeChanged()) {
// This window is awaiting a relayout because user just started (or ended)
// drag-resizing. The shown frame (which affects surface size and pos)
// should not be updated until we get next finished draw with the new surface.
// Otherwise one or two frames rendered with old settings would be displayed
// with new geometry.
return;
}
if (WindowManagerService.localLOGV) Slog.v(
TAG, "computeShownFrameLocked: " + this +
" not attached, mAlpha=" + mAlpha);
mShownAlpha = mAlpha;
mHaveMatrix = false;
mDsDx = mWin.mGlobalScale;
mDtDx = 0;
mDtDy = 0;
mDsDy = mWin.mGlobalScale;
}
/**
* Calculate the window-space crop rect and fill clipRect.
* @return true if clipRect has been filled otherwise, no window space crop should be applied.
*/
private boolean calculateCrop(Rect clipRect) {
final WindowState w = mWin;
final DisplayContent displayContent = w.getDisplayContent();
clipRect.setEmpty();
if (displayContent == null) {
return false;
}
if (w.getWindowConfiguration().tasksAreFloating()) {
return false;
}
// During forced seamless rotation, the surface bounds get updated with the crop in the
// new rotation, which is not compatible with showing the surface in the old rotation.
// To work around that we disable cropping for such windows, as it is not necessary anyways.
if (w.mForceSeamlesslyRotate) {
return false;
}
// If we're animating, the wallpaper should only
// be updated at the end of the animation.
if (w.mAttrs.type == TYPE_WALLPAPER) {
return false;
}
if (DEBUG_WINDOW_CROP) Slog.d(TAG,
"Updating crop win=" + w + " mLastCrop=" + mLastClipRect);
w.calculatePolicyCrop(mSystemDecorRect);
if (DEBUG_WINDOW_CROP) Slog.d(TAG, "Applying decor to crop win=" + w + " mDecorFrame="
+ w.getDecorFrame() + " mSystemDecorRect=" + mSystemDecorRect);
// We use the clip rect as provided by the tranformation for non-fullscreen windows to
// avoid premature clipping with the system decor rect.
clipRect.set(mSystemDecorRect);
if (DEBUG_WINDOW_CROP) Slog.d(TAG, "win=" + w + " Initial clip rect: " + clipRect);
w.expandForSurfaceInsets(clipRect);
// The clip rect was generated assuming (0,0) as the window origin,
// so we need to translate to match the actual surface coordinates.
clipRect.offset(w.mAttrs.surfaceInsets.left, w.mAttrs.surfaceInsets.top);
if (DEBUG_WINDOW_CROP) Slog.d(TAG,
"win=" + w + " Clip rect after stack adjustment=" + clipRect);
w.transformClipRectFromScreenToSurfaceSpace(clipRect);
return true;
}
private void applyCrop(Rect clipRect, boolean recoveringMemory) {
if (DEBUG_WINDOW_CROP) Slog.d(TAG, "applyCrop: win=" + mWin
+ " clipRect=" + clipRect);
if (clipRect != null) {
if (!clipRect.equals(mLastClipRect)) {
mLastClipRect.set(clipRect);
mSurfaceController.setCropInTransaction(clipRect, recoveringMemory);
}
} else {
mSurfaceController.clearCropInTransaction(recoveringMemory);
}
}
void setSurfaceBoundariesLocked(final boolean recoveringMemory) {
if (mSurfaceController == null) {
return;
}
final WindowState w = mWin;
final LayoutParams attrs = mWin.getAttrs();
final Task task = w.getTask();
calculateSurfaceBounds(w, attrs, mTmpSize);
mExtraHScale = (float) 1.0;
mExtraVScale = (float) 1.0;
boolean wasForceScaled = mForceScaleUntilResize;
// Once relayout has been called at least once, we need to make sure
// we only resize the client surface during calls to relayout. For
// clients which use indeterminate measure specs (MATCH_PARENT),
// we may try and change their window size without a call to relayout.
// However, this would be unsafe, as the client may be in the middle
// of producing a frame at the old size, having just completed layout
// to find the surface size changed underneath it.
final boolean relayout = !w.mRelayoutCalled || w.mInRelayout;
if (relayout) {
mSurfaceResized = mSurfaceController.setBufferSizeInTransaction(
mTmpSize.width(), mTmpSize.height(), recoveringMemory);
} else {
mSurfaceResized = false;
}
mForceScaleUntilResize = mForceScaleUntilResize && !mSurfaceResized;
// If we are undergoing seamless rotation, the surface has already
// been set up to persist at it's old location. We need to freeze
// updates until a resize occurs.
Rect clipRect = null;
if (calculateCrop(mTmpClipRect)) {
clipRect = mTmpClipRect;
}
float surfaceWidth = mSurfaceController.getWidth();
float surfaceHeight = mSurfaceController.getHeight();
final Rect insets = attrs.surfaceInsets;
if (isForceScaled()) {
int hInsets = insets.left + insets.right;
int vInsets = insets.top + insets.bottom;
float surfaceContentWidth = surfaceWidth - hInsets;
float surfaceContentHeight = surfaceHeight - vInsets;
if (!mForceScaleUntilResize) {
mSurfaceController.forceScaleableInTransaction(true);
}
int posX = 0;
int posY = 0;
task.mStack.getDimBounds(mTmpStackBounds);
boolean allowStretching = false;
task.mStack.getFinalAnimationSourceHintBounds(mTmpSourceBounds);
// If we don't have source bounds, we can attempt to use the content insets
// in the following scenario:
// 1. We have content insets.
// 2. We are not transitioning to full screen
// We have to be careful to check "lastAnimatingBoundsWasToFullscreen" rather than
// the mBoundsAnimating state, as we may have already left it and only be here
// because of the force-scale until resize state.
if (mTmpSourceBounds.isEmpty() && (mWin.mLastRelayoutContentInsets.width() > 0
|| mWin.mLastRelayoutContentInsets.height() > 0)
&& !task.mStack.lastAnimatingBoundsWasToFullscreen()) {
mTmpSourceBounds.set(task.mStack.mPreAnimationBounds);
mTmpSourceBounds.inset(mWin.mLastRelayoutContentInsets);
allowStretching = true;
}
// Make sure that what we're animating to and from is actually the right size in case
// the window cannot take up the full screen.
mTmpStackBounds.intersectUnchecked(w.getParentFrame());
mTmpSourceBounds.intersectUnchecked(w.getParentFrame());
mTmpAnimatingBounds.intersectUnchecked(w.getParentFrame());
if (!mTmpSourceBounds.isEmpty()) {
// Get the final target stack bounds, if we are not animating, this is just the
// current stack bounds
task.mStack.getFinalAnimationBounds(mTmpAnimatingBounds);
// Calculate the current progress and interpolate the difference between the target
// and source bounds
float finalWidth = mTmpAnimatingBounds.width();
float initialWidth = mTmpSourceBounds.width();
float tw = (surfaceContentWidth - mTmpStackBounds.width())
/ (surfaceContentWidth - mTmpAnimatingBounds.width());
float th = tw;
mExtraHScale = (initialWidth + tw * (finalWidth - initialWidth)) / initialWidth;
if (allowStretching) {
float finalHeight = mTmpAnimatingBounds.height();
float initialHeight = mTmpSourceBounds.height();
th = (surfaceContentHeight - mTmpStackBounds.height())
/ (surfaceContentHeight - mTmpAnimatingBounds.height());
mExtraVScale = (initialHeight + tw * (finalHeight - initialHeight))
/ initialHeight;
} else {
mExtraVScale = mExtraHScale;
}
// Adjust the position to account for the inset bounds
posX -= (int) (tw * mExtraHScale * mTmpSourceBounds.left);
posY -= (int) (th * mExtraVScale * mTmpSourceBounds.top);
// In pinned mode the clip rectangle applied to us by our stack has been
// expanded outwards to allow for shadows. However in case of source bounds set
// we need to crop to within the surface. The code above has scaled and positioned
// the surface to fit the unexpanded stack bounds, but now we need to reapply
// the cropping that the stack would have applied if it weren't expanded. This
// can be different in each direction based on the source bounds.
clipRect = mTmpClipRect;
clipRect.set((int)((insets.left + mTmpSourceBounds.left) * tw),
(int)((insets.top + mTmpSourceBounds.top) * th),
insets.left + (int)(surfaceWidth
- (tw* (surfaceWidth - mTmpSourceBounds.right))),
insets.top + (int)(surfaceHeight
- (th * (surfaceHeight - mTmpSourceBounds.bottom))));
} else {
// We want to calculate the scaling based on the content area, not based on
// the entire surface, so that we scale in sync with windows that don't have insets.
mExtraHScale = mTmpStackBounds.width() / surfaceContentWidth;
mExtraVScale = mTmpStackBounds.height() / surfaceContentHeight;
// Since we are scaled to fit in our previously desired crop, we can now
// expose the whole window in buffer space, and not risk extending
// past where the system would have cropped us
clipRect = null;
}
// In the case of ForceScaleToStack we scale entire tasks together,
// and so we need to scale our offsets relative to the task bounds
// or parent and child windows would fall out of alignment.
posX -= (int) (attrs.x * (1 - mExtraHScale));
posY -= (int) (attrs.y * (1 - mExtraVScale));
// Imagine we are scaling down. As we scale the buffer down, we decrease the
// distance between the surface top left, and the start of the surface contents
// (previously it was surfaceInsets.left pixels in screen space but now it
// will be surfaceInsets.left*mExtraHScale). This means in order to keep the
// non inset content at the same position, we have to shift the whole window
// forward. Likewise for scaling up, we've increased this distance, and we need
// to shift by a negative number to compensate.
posX += insets.left * (1 - mExtraHScale);
posY += insets.top * (1 - mExtraVScale);
mSurfaceController.setPositionInTransaction((float) Math.floor(posX),
(float) Math.floor(posY), recoveringMemory);
// Various surfaces in the scaled stack may resize at different times.
// We need to ensure for each surface, that we disable transformation matrix
// scaling in the same transaction which we resize the surface in.
// As we are in SCALING_MODE_SCALE_TO_WINDOW, SurfaceFlinger will
// then take over the scaling until the new buffer arrives, and things
// will be seamless.
if (mPipAnimationStarted == false) {
mForceScaleUntilResize = true;
mPipAnimationStarted = true;
}
} else {
mPipAnimationStarted = false;
if (!w.mSeamlesslyRotated) {
// Used to offset the WSA when stack position changes before a resize.
int xOffset = mXOffset;
int yOffset = mYOffset;
if (mOffsetPositionForStackResize) {
if (relayout) {
// Once a relayout is called, reset the offset back to 0 and defer
// setting it until a new frame with the updated size. This ensures that
// the WS position is reset (so the stack position is shown) at the same
// time that the buffer size changes.
setOffsetPositionForStackResize(false);
mSurfaceController.deferTransactionUntil(mSurfaceController.getHandle(),
mWin.getFrameNumber());
} else {
final TaskStack stack = mWin.getStack();
mTmpPos.x = 0;
mTmpPos.y = 0;
if (stack != null) {
stack.getRelativeDisplayedPosition(mTmpPos);
}
xOffset = -mTmpPos.x;
yOffset = -mTmpPos.y;
// Crop also needs to be extended so the bottom isn't cut off when the WSA
// position is moved.
if (clipRect != null) {
clipRect.right += mTmpPos.x;
clipRect.bottom += mTmpPos.y;
}
}
}
mSurfaceController.setPositionInTransaction(xOffset, yOffset, recoveringMemory);
}
}
// If we are ending the scaling mode. We switch to SCALING_MODE_FREEZE
// to prevent further updates until buffer latch.
// We also need to freeze the Surface geometry until a buffer
// comes in at the new size (normally position and crop are unfrozen).
// setGeometryAppliesWithResizeInTransaction accomplishes this for us.
if (wasForceScaled && !mForceScaleUntilResize) {
mSurfaceController.deferTransactionUntil(mSurfaceController.getHandle(),
mWin.getFrameNumber());
mSurfaceController.forceScaleableInTransaction(false);
}
if (!w.mSeamlesslyRotated) {
applyCrop(clipRect, recoveringMemory);
mSurfaceController.setMatrixInTransaction(mDsDx * w.mHScale * mExtraHScale,
mDtDx * w.mVScale * mExtraVScale,
mDtDy * w.mHScale * mExtraHScale,
mDsDy * w.mVScale * mExtraVScale, recoveringMemory);
}
if (mSurfaceResized) {
mReportSurfaceResized = true;
mAnimator.setPendingLayoutChanges(w.getDisplayId(),
FINISH_LAYOUT_REDO_WALLPAPER);
}
}
/**
* Get rect of the task this window is currently in. If there is no task, rect will be set to
* empty.
*/
void getContainerRect(Rect rect) {
final Task task = mWin.getTask();
if (task != null) {
task.getDimBounds(rect);
} else {
rect.left = rect.top = rect.right = rect.bottom = 0;
}
}
void prepareSurfaceLocked(final boolean recoveringMemory) {
final WindowState w = mWin;
if (!hasSurface()) {
// There is no need to wait for an animation change if our window is gone for layout
// already as we'll never be visible.
if (w.getOrientationChanging() && w.isGoneForLayoutLw()) {
if (DEBUG_ORIENTATION) {
Slog.v(TAG, "Orientation change skips hidden " + w);
}
w.setOrientationChanging(false);
}
return;
}
boolean displayed = false;
computeShownFrameLocked();
setSurfaceBoundariesLocked(recoveringMemory);
if (mIsWallpaper && !w.mWallpaperVisible) {
// Wallpaper is no longer visible and there is no wp target => hide it.
hide("prepareSurfaceLocked");
} else if (w.isParentWindowHidden() || !w.isOnScreen()) {
hide("prepareSurfaceLocked");
mWallpaperControllerLocked.hideWallpapers(w);
// If we are waiting for this window to handle an orientation change. If this window is
// really hidden (gone for layout), there is no point in still waiting for it.
// Note that this does introduce a potential glitch if the window becomes unhidden
// before it has drawn for the new orientation.
if (w.getOrientationChanging() && w.isGoneForLayoutLw()) {
w.setOrientationChanging(false);
if (DEBUG_ORIENTATION) Slog.v(TAG,
"Orientation change skips hidden " + w);
}
} else if (mLastAlpha != mShownAlpha
|| mLastDsDx != mDsDx
|| mLastDtDx != mDtDx
|| mLastDsDy != mDsDy
|| mLastDtDy != mDtDy
|| w.mLastHScale != w.mHScale
|| w.mLastVScale != w.mVScale
|| mLastHidden) {
displayed = true;
mLastAlpha = mShownAlpha;
mLastDsDx = mDsDx;
mLastDtDx = mDtDx;
mLastDsDy = mDsDy;
mLastDtDy = mDtDy;
w.mLastHScale = w.mHScale;
w.mLastVScale = w.mVScale;
if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
"controller=" + mSurfaceController +
"alpha=" + mShownAlpha
+ " matrix=[" + mDsDx + "*" + w.mHScale
+ "," + mDtDx + "*" + w.mVScale
+ "][" + mDtDy + "*" + w.mHScale
+ "," + mDsDy + "*" + w.mVScale + "]", false);
boolean prepared =
mSurfaceController.prepareToShowInTransaction(mShownAlpha,
mDsDx * w.mHScale * mExtraHScale,
mDtDx * w.mVScale * mExtraVScale,
mDtDy * w.mHScale * mExtraHScale,
mDsDy * w.mVScale * mExtraVScale,
recoveringMemory);
if (prepared && mDrawState == HAS_DRAWN) {
if (mLastHidden) {
if (showSurfaceRobustlyLocked()) {
markPreservedSurfaceForDestroy();
mAnimator.requestRemovalOfReplacedWindows(w);
mLastHidden = false;
if (mIsWallpaper) {
w.dispatchWallpaperVisibility(true);
}
if (!w.getDisplayContent().getLastHasContent()) {
// This draw means the difference between unique content and mirroring.
// Run another pass through performLayout to set mHasContent in the
// LogicalDisplay.
mAnimator.setPendingLayoutChanges(w.getDisplayId(),
FINISH_LAYOUT_REDO_ANIM);
if (DEBUG_LAYOUT_REPEATS) {
mService.mWindowPlacerLocked.debugLayoutRepeats(
"showSurfaceRobustlyLocked " + w,
mAnimator.getPendingLayoutChanges(w.getDisplayId()));
}
}
} else {
w.setOrientationChanging(false);
}
}
}
if (hasSurface()) {
w.mToken.hasVisible = true;
}
} else {
if (DEBUG_ANIM && mWin.isAnimating()) {
Slog.v(TAG, "prepareSurface: No changes in animation for " + this);
}
displayed = true;
}
if (w.getOrientationChanging()) {
if (!w.isDrawnLw()) {
mAnimator.mBulkUpdateParams &= ~SET_ORIENTATION_CHANGE_COMPLETE;
mAnimator.mLastWindowFreezeSource = w;
if (DEBUG_ORIENTATION) Slog.v(TAG,
"Orientation continue waiting for draw in " + w);
} else {
w.setOrientationChanging(false);
if (DEBUG_ORIENTATION) Slog.v(TAG, "Orientation change complete in " + w);
}
}
if (displayed) {
w.mToken.hasVisible = true;
}
}
void setTransparentRegionHintLocked(final Region region) {
if (mSurfaceController == null) {
Slog.w(TAG, "setTransparentRegionHint: null mSurface after mHasSurface true");
return;
}
mSurfaceController.setTransparentRegionHint(region);
}
boolean setWallpaperOffset(int dx, int dy) {
if (mXOffset == dx && mYOffset == dy) {
return false;
}
mXOffset = dx;
mYOffset = dy;
try {
if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG, ">>> OPEN TRANSACTION setWallpaperOffset");
mService.openSurfaceTransaction();
mSurfaceController.setPositionInTransaction(dx, dy, false);
applyCrop(null, false);
} catch (RuntimeException e) {
Slog.w(TAG, "Error positioning surface of " + mWin
+ " pos=(" + dx + "," + dy + ")", e);
} finally {
mService.closeSurfaceTransaction("setWallpaperOffset");
if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
"<<< CLOSE TRANSACTION setWallpaperOffset");
return true;
}
}
/**
* Try to change the pixel format without recreating the surface. This
* will be common in the case of changing from PixelFormat.OPAQUE to
* PixelFormat.TRANSLUCENT in the hardware-accelerated case as both
* requested formats resolve to the same underlying SurfaceControl format
* @return True if format was succesfully changed, false otherwise
*/
boolean tryChangeFormatInPlaceLocked() {
if (mSurfaceController == null) {
return false;
}
final LayoutParams attrs = mWin.getAttrs();
final boolean isHwAccelerated = (attrs.flags & FLAG_HARDWARE_ACCELERATED) != 0;
final int format = isHwAccelerated ? PixelFormat.TRANSLUCENT : attrs.format;
if (format == mSurfaceFormat) {
setOpaqueLocked(!PixelFormat.formatHasAlpha(attrs.format));
return true;
}
return false;
}
void setOpaqueLocked(boolean isOpaque) {
if (mSurfaceController == null) {
return;
}
mSurfaceController.setOpaque(isOpaque);
}
void setSecureLocked(boolean isSecure) {
if (mSurfaceController == null) {
return;
}
mSurfaceController.setSecure(isSecure);
}
void setColorSpaceAgnosticLocked(boolean agnostic) {
if (mSurfaceController == null) {
return;
}
mSurfaceController.setColorSpaceAgnostic(agnostic);
}
/**
* Have the surface flinger show a surface, robustly dealing with
* error conditions. In particular, if there is not enough memory
* to show the surface, then we will try to get rid of other surfaces
* in order to succeed.
*
* @return Returns true if the surface was successfully shown.
*/
private boolean showSurfaceRobustlyLocked() {
if (mWin.getWindowConfiguration().windowsAreScaleable()) {
mSurfaceController.forceScaleableInTransaction(true);
}
boolean shown = mSurfaceController.showRobustlyInTransaction();
if (!shown)
return false;
// If we had a preserved surface it's no longer needed, and it may be harmful
// if we are transparent.
if (mPendingDestroySurface != null && mDestroyPreservedSurfaceUponRedraw) {
mPendingDestroySurface.mSurfaceControl.hide();
mPendingDestroySurface.reparentChildrenInTransaction(mSurfaceController);
}
return true;
}
void applyEnterAnimationLocked() {
// If we are the new part of a window replacement transition and we have requested
// not to animate, we instead want to make it seamless, so we don't want to apply
// an enter transition.
if (mWin.mSkipEnterAnimationForSeamlessReplacement) {
return;
}
final int transit;
if (mEnterAnimationPending) {
mEnterAnimationPending = false;
transit = WindowManagerPolicy.TRANSIT_ENTER;
} else {
transit = WindowManagerPolicy.TRANSIT_SHOW;
}
// We don't apply animation for application main window here since this window type
// should be controlled by AppWindowToken in general.
if (mAttrType != TYPE_BASE_APPLICATION) {
applyAnimationLocked(transit, true);
}
if (mService.mAccessibilityController != null) {
mService.mAccessibilityController.onWindowTransitionLocked(mWin, transit);
}
}
/**
* Choose the correct animation and set it to the passed WindowState.
* @param transit If AppTransition.TRANSIT_PREVIEW_DONE and the app window has been drawn
* then the animation will be app_starting_exit. Any other value loads the animation from
* the switch statement below.
* @param isEntrance The animation type the last time this was called. Used to keep from
* loading the same animation twice.
* @return true if an animation has been loaded.
*/
boolean applyAnimationLocked(int transit, boolean isEntrance) {
if (mWin.isSelfAnimating() && mAnimationIsEntrance == isEntrance) {
// If we are trying to apply an animation, but already running
// an animation of the same type, then just leave that one alone.
return true;
}
if (isEntrance && mWin.mAttrs.type == TYPE_INPUT_METHOD) {
mWin.getDisplayContent().adjustForImeIfNeeded();
mWin.setDisplayLayoutNeeded();
mService.mWindowPlacerLocked.requestTraversal();
}
// Only apply an animation if the display isn't frozen. If it is
// frozen, there is no reason to animate and it can cause strange
// artifacts when we unfreeze the display if some different animation
// is running.
Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "WSA#applyAnimationLocked");
if (mWin.mToken.okToAnimate()) {
int anim = mWin.getDisplayContent().getDisplayPolicy().selectAnimationLw(mWin, transit);
int attr = -1;
Animation a = null;
if (anim != 0) {
a = anim != -1 ? AnimationUtils.loadAnimation(mContext, anim) : null;
} else {
switch (transit) {
case WindowManagerPolicy.TRANSIT_ENTER:
attr = com.android.internal.R.styleable.WindowAnimation_windowEnterAnimation;
break;
case WindowManagerPolicy.TRANSIT_EXIT:
attr = com.android.internal.R.styleable.WindowAnimation_windowExitAnimation;
break;
case WindowManagerPolicy.TRANSIT_SHOW:
attr = com.android.internal.R.styleable.WindowAnimation_windowShowAnimation;
break;
case WindowManagerPolicy.TRANSIT_HIDE:
attr = com.android.internal.R.styleable.WindowAnimation_windowHideAnimation;
break;
}
if (attr >= 0) {
a = mWin.getDisplayContent().mAppTransition.loadAnimationAttr(
mWin.mAttrs, attr, TRANSIT_NONE);
}
}
if (DEBUG_ANIM) Slog.v(TAG,
"applyAnimation: win=" + this
+ " anim=" + anim + " attr=0x" + Integer.toHexString(attr)
+ " a=" + a
+ " transit=" + transit
+ " type=" + mAttrType
+ " isEntrance=" + isEntrance + " Callers " + Debug.getCallers(3));
if (a != null) {
if (DEBUG_ANIM) logWithStack(TAG, "Loaded animation " + a + " for " + this);
mWin.startAnimation(a);
mAnimationIsEntrance = isEntrance;
}
} else {
mWin.cancelAnimation();
}
if (!isEntrance && mWin.mAttrs.type == TYPE_INPUT_METHOD) {
mWin.getDisplayContent().adjustForImeIfNeeded();
}
Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER);
return mWin.isAnimating();
}
void writeToProto(ProtoOutputStream proto, long fieldId) {
final long token = proto.start(fieldId);
mLastClipRect.writeToProto(proto, LAST_CLIP_RECT);
if (mSurfaceController != null) {
mSurfaceController.writeToProto(proto, SURFACE);
}
proto.write(DRAW_STATE, mDrawState);
mSystemDecorRect.writeToProto(proto, SYSTEM_DECOR_RECT);
proto.end(token);
}
public void dump(PrintWriter pw, String prefix, boolean dumpAll) {
if (mAnimationIsEntrance) {
pw.print(prefix); pw.print(" mAnimationIsEntrance="); pw.print(mAnimationIsEntrance);
}
if (mSurfaceController != null) {
mSurfaceController.dump(pw, prefix, dumpAll);
}
if (dumpAll) {
pw.print(prefix); pw.print("mDrawState="); pw.print(drawStateToString());
pw.print(prefix); pw.print(" mLastHidden="); pw.println(mLastHidden);
pw.print(prefix); pw.print("mSystemDecorRect="); mSystemDecorRect.printShortString(pw);
pw.print(" mLastClipRect="); mLastClipRect.printShortString(pw);
if (!mLastFinalClipRect.isEmpty()) {
pw.print(" mLastFinalClipRect="); mLastFinalClipRect.printShortString(pw);
}
pw.println();
}
if (mPendingDestroySurface != null) {
pw.print(prefix); pw.print("mPendingDestroySurface=");
pw.println(mPendingDestroySurface);
}
if (mSurfaceResized || mSurfaceDestroyDeferred) {
pw.print(prefix); pw.print("mSurfaceResized="); pw.print(mSurfaceResized);
pw.print(" mSurfaceDestroyDeferred="); pw.println(mSurfaceDestroyDeferred);
}
if (mShownAlpha != 1 || mAlpha != 1 || mLastAlpha != 1) {
pw.print(prefix); pw.print("mShownAlpha="); pw.print(mShownAlpha);
pw.print(" mAlpha="); pw.print(mAlpha);
pw.print(" mLastAlpha="); pw.println(mLastAlpha);
}
if (mHaveMatrix || mWin.mGlobalScale != 1) {
pw.print(prefix); pw.print("mGlobalScale="); pw.print(mWin.mGlobalScale);
pw.print(" mDsDx="); pw.print(mDsDx);
pw.print(" mDtDx="); pw.print(mDtDx);
pw.print(" mDtDy="); pw.print(mDtDy);
pw.print(" mDsDy="); pw.println(mDsDy);
}
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer("WindowStateAnimator{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(' ');
sb.append(mWin.mAttrs.getTitle());
sb.append('}');
return sb.toString();
}
void reclaimSomeSurfaceMemory(String operation, boolean secure) {
mService.mRoot.reclaimSomeSurfaceMemory(this, operation, secure);
}
boolean getShown() {
if (mSurfaceController != null) {
return mSurfaceController.getShown();
}
return false;
}
void destroySurface() {
try {
if (mSurfaceController != null) {
mSurfaceController.destroyNotInTransaction();
}
} catch (RuntimeException e) {
Slog.w(TAG, "Exception thrown when destroying surface " + this
+ " surface " + mSurfaceController + " session " + mSession + ": " + e);
} finally {
mWin.setHasSurface(false);
mSurfaceController = null;
mDrawState = NO_SURFACE;
}
}
/** The force-scaled state for a given window can persist past
* the state for it's stack as the windows complete resizing
* independently of one another.
*/
boolean isForceScaled() {
final Task task = mWin.getTask();
if (task != null && task.mStack.isForceScaled()) {
return true;
}
return mForceScaleUntilResize;
}
void detachChildren() {
if (mSurfaceController != null) {
mSurfaceController.detachChildren();
}
mChildrenDetached = true;
}
void setOffsetPositionForStackResize(boolean offsetPositionForStackResize) {
mOffsetPositionForStackResize = offsetPositionForStackResize;
}
}