Reload LockscreenWallpaper and ImageWallpaper on background thread (7e9dec28) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/ImageWallpaper.java

+91 −51

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@ import android.graphics.Rect;
		import android.graphics.RectF;
		import android.graphics.Region.Op;
		import android.opengl.GLUtils;
		import android.os.AsyncTask;
		import android.os.SystemProperties;
		import android.renderscript.Matrix4f;
		import android.service.wallpaper.WallpaperService;
		@@ -155,6 +156,8 @@ public class ImageWallpaper extends WallpaperService {

		private int mLastRequestedWidth = -1;
		private int mLastRequestedHeight = -1;
		private AsyncTask<Void, Void, Bitmap> mLoader;
		private boolean mNeedsDrawAfterLoadingWallpaper;

		public DrawableEngine() {
		super();
		@@ -184,10 +187,9 @@ public class ImageWallpaper extends WallpaperService {
		super.onCreate(surfaceHolder);

		mDefaultDisplay = getSystemService(WindowManager.class).getDefaultDisplay();

		updateSurfaceSize(surfaceHolder, getDefaultDisplayInfo());

		setOffsetNotificationsEnabled(false);

		updateSurfaceSize(surfaceHolder, getDefaultDisplayInfo(), false /* forDraw */);
		}

		@Override
		@@ -197,17 +199,19 @@ public class ImageWallpaper extends WallpaperService {
		mWallpaperManager.forgetLoadedWallpaper();
		}

		void updateSurfaceSize(SurfaceHolder surfaceHolder, DisplayInfo displayInfo) {
		boolean updateSurfaceSize(SurfaceHolder surfaceHolder, DisplayInfo displayInfo,
		boolean forDraw) {
		boolean hasWallpaper = true;

		// Load background image dimensions, if we haven't saved them yet
		if (mBackgroundWidth <= 0 \|\| mBackgroundHeight <= 0) {
		// Need to load the image to get dimensions
		mWallpaperManager.forgetLoadedWallpaper();
		updateWallpaperLocked();
		if (mBackgroundWidth <= 0 \|\| mBackgroundHeight <= 0) {
		// Default to the display size if we can't find the dimensions
		mBackgroundWidth = displayInfo.logicalWidth;
		mBackgroundHeight = displayInfo.logicalHeight;
		loadWallpaper(forDraw);
		if (DEBUG) {
		Log.d(TAG, "Reloading, redoing updateSurfaceSize later.");
		}
		hasWallpaper = false;
		}

		// Force the wallpaper to cover the screen in both dimensions
		@@ -224,6 +228,7 @@ public class ImageWallpaper extends WallpaperService {
		} else {
		surfaceHolder.setSizeFromLayout();
		}
		return hasWallpaper;
		}

		@Override
		@@ -299,6 +304,7 @@ public class ImageWallpaper extends WallpaperService {
		}
		super.onSurfaceRedrawNeeded(holder);

		mLastSurfaceHeight = mLastSurfaceWidth = -1;
		drawFrame();
		}

		@@ -317,7 +323,9 @@ public class ImageWallpaper extends WallpaperService {
		// should change
		if (newRotation != mLastRotation) {
		// Update surface size (if necessary)
		updateSurfaceSize(getSurfaceHolder(), displayInfo);
		if (!updateSurfaceSize(getSurfaceHolder(), displayInfo, true /* forDraw */)) {
		return; // had to reload wallpaper, will retry later
		}
		mRotationAtLastSurfaceSizeUpdate = newRotation;
		mDisplayWidthAtLastSurfaceSizeUpdate = displayInfo.logicalWidth;
		mDisplayHeightAtLastSurfaceSizeUpdate = displayInfo.logicalHeight;
		@@ -339,8 +347,8 @@ public class ImageWallpaper extends WallpaperService {
		}
		mLastRotation = newRotation;

		// Load bitmap if it is not yet loaded or if it was loaded at a different size
		if (mBackground == null \|\| surfaceDimensionsChanged) {
		// Load bitmap if it is not yet loaded
		if (mBackground == null) {
		if (DEBUG) {
		Log.d(TAG, "Reloading bitmap: mBackground, bgw, bgh, dw, dh = " +
		mBackground + ", " +
		@@ -349,21 +357,12 @@ public class ImageWallpaper extends WallpaperService {
		dw + ", " + dh);
		}
		mWallpaperManager.forgetLoadedWallpaper();
		updateWallpaperLocked();
		if (mBackground == null) {
		loadWallpaper(true /* needDraw */);
		if (DEBUG) {
		Log.d(TAG, "Unable to load bitmap");
		Log.d(TAG, "Reloading, resuming draw later");
		}
		return;
		}
		if (DEBUG) {
		if (dw != mBackground.getWidth() \|\| dh != mBackground.getHeight()) {
		Log.d(TAG, "Surface != bitmap dimensions: surface w/h, bitmap w/h: " +
		dw + ", " + dh + ", " + mBackground.getWidth() + ", " +
		mBackground.getHeight());
		}
		}
		}

		// Center the scaled image
		mScale = Math.max(1f, Math.max(dw / (float) mBackground.getWidth(),
		@@ -422,25 +421,32 @@ public class ImageWallpaper extends WallpaperService {
		}
		}

		private void updateWallpaperLocked() {
		Throwable exception = null;
		/**
		* Loads the wallpaper on background thread and schedules updating the surface frame,
		* and if {@param needsDraw} is set also draws a frame.
		*
		* If loading is already in-flight, subsequent loads are ignored (but needDraw is or-ed to
		* the active request).
		*/
		private void loadWallpaper(boolean needsDraw) {
		mNeedsDrawAfterLoadingWallpaper \|= needsDraw;
		if (mLoader != null) {
		if (DEBUG) {
		Log.d(TAG, "Skipping loadWallpaper, already in flight ");
		}
		return;
		}
		mLoader = new AsyncTask<Void, Void, Bitmap>() {
		@Override
		protected Bitmap doInBackground(Void... params) {
		Throwable exception;
		try {
		mBackground = null;
		mBackgroundWidth = -1;
		mBackgroundHeight = -1;
		mBackground = mWallpaperManager.getBitmap();
		mBackgroundWidth = mBackground.getWidth();
		mBackgroundHeight = mBackground.getHeight();
		} catch (RuntimeException e) {
		exception = e;
		} catch (OutOfMemoryError e) {
		return mWallpaperManager.getBitmap();
		} catch (RuntimeException \| OutOfMemoryError e) {
		exception = e;
		}

		if (exception != null) {
		mBackground = null;
		mBackgroundWidth = -1;
		mBackgroundHeight = -1;
		// Note that if we do fail at this, and the default wallpaper can't
		// be loaded, we will go into a cycle. Don't do a build where the
		// default wallpaper can't be loaded.
		@@ -451,7 +457,41 @@ public class ImageWallpaper extends WallpaperService {
		// now we're really screwed.
		Log.w(TAG, "Unable reset to default wallpaper!", ex);
		}

		try {
		return mWallpaperManager.getBitmap();
		} catch (RuntimeException \| OutOfMemoryError e) {
		Log.w(TAG, "Unable to load default wallpaper!", e);
		}
		}
		return null;
		}

		@Override
		protected void onPostExecute(Bitmap b) {
		mBackground = null;
		mBackgroundWidth = -1;
		mBackgroundHeight = -1;

		if (b != null) {
		mBackground = b;
		mBackgroundWidth = mBackground.getWidth();
		mBackgroundHeight = mBackground.getHeight();
		}

		if (DEBUG) {
		Log.d(TAG, "Wallpaper loaded: " + mBackground);
		}
		updateSurfaceSize(getSurfaceHolder(), getDefaultDisplayInfo(),
		false /* forDraw */);
		if (mNeedsDrawAfterLoadingWallpaper) {
		drawFrame();
		}

		mLoader = null;
		mNeedsDrawAfterLoadingWallpaper = false;
		}
		}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
		}

		@Override

packages/SystemUI/src/com/android/systemui/statusbar/phone/LockscreenWallpaper.java

+103 −55

Original line number	Diff line number	Diff line
		@@ -27,7 +27,7 @@ import android.graphics.BitmapFactory;
		import android.graphics.Rect;
		import android.graphics.drawable.BitmapDrawable;
		import android.graphics.drawable.DrawableWrapper;
		import android.os.Bundle;
		import android.os.AsyncTask;
		import android.os.Handler;
		import android.os.ParcelFileDescriptor;
		import android.os.RemoteException;
		@@ -46,9 +46,7 @@ public class LockscreenWallpaper extends IWallpaperManagerCallback.Stub implemen

		private static final String TAG = "LockscreenWallpaper";

		private final Context mContext;
		private final PhoneStatusBar mBar;
		private final IWallpaperManager mService;
		private final WallpaperManager mWallpaperManager;
		private final Handler mH;

		@@ -58,68 +56,74 @@ public class LockscreenWallpaper extends IWallpaperManagerCallback.Stub implemen
		// The user selected in the UI, or null if no user is selected or UI doesn't support selecting
		// users.
		private UserHandle mSelectedUser;
		private AsyncTask<Void, Void, LoaderResult> mLoader;

		public LockscreenWallpaper(Context ctx, PhoneStatusBar bar, Handler h) {
		mContext = ctx;
		mBar = bar;
		mH = h;
		mService = IWallpaperManager.Stub.asInterface(
		ServiceManager.getService(Context.WALLPAPER_SERVICE));
		mWallpaperManager = (WallpaperManager) ctx.getSystemService(Context.WALLPAPER_SERVICE);
		mCurrentUserId = ActivityManager.getCurrentUser();

		IWallpaperManager service = IWallpaperManager.Stub.asInterface(
		ServiceManager.getService(Context.WALLPAPER_SERVICE));
		try {
		mService.setLockWallpaperCallback(this);
		service.setLockWallpaperCallback(this);
		} catch (RemoteException e) {
		Log.e(TAG, "System dead?" + e);
		}
		}

		public Bitmap getBitmap() {
		try {
		if (mCached) {
		return mCache;
		}
		if (!mService.isWallpaperSupported(mContext.getOpPackageName())) {
		if (!mWallpaperManager.isWallpaperSupported()) {
		mCached = true;
		mCache = null;
		return null;
		}

		LoaderResult result = loadBitmap(mCurrentUserId, mSelectedUser);
		if (result.success) {
		mCached = true;
		mCache = result.bitmap;
		}
		return mCache;
		}

		public LoaderResult loadBitmap(int currentUserId, UserHandle selectedUser) {
		// May be called on any thread - only use thread safe operations.

		// Prefer the selected user (when specified) over the current user for the FLAG_SET_LOCK
		// wallpaper.
		final int lockWallpaperUserId =
		mSelectedUser != null ? mSelectedUser.getIdentifier() : mCurrentUserId;
		ParcelFileDescriptor fd = mService.getWallpaper(null, WallpaperManager.FLAG_LOCK,
		new Bundle(), lockWallpaperUserId);
		selectedUser != null ? selectedUser.getIdentifier() : currentUserId;
		ParcelFileDescriptor fd = mWallpaperManager.getWallpaperFile(
		WallpaperManager.FLAG_LOCK, lockWallpaperUserId);

		if (fd != null) {
		try {
		BitmapFactory.Options options = new BitmapFactory.Options();
		mCache = BitmapFactory.decodeFileDescriptor(
		fd.getFileDescriptor(), null, options);
		mCached = true;
		return mCache;
		return LoaderResult.success(BitmapFactory.decodeFileDescriptor(
		fd.getFileDescriptor(), null, options));
		} catch (OutOfMemoryError e) {
		Log.w(TAG, "Can't decode file", e);
		return null;
		return LoaderResult.fail();
		} finally {
		IoUtils.closeQuietly(fd);
		}
		} else {
		mCached = true;
		if (mSelectedUser != null && mSelectedUser.getIdentifier() != mCurrentUserId) {
		if (selectedUser != null && selectedUser.getIdentifier() != currentUserId) {
		// When selected user is different from the current user, show the selected
		// user's static wallpaper.
		mCache = mWallpaperManager.getBitmapAsUser(mSelectedUser.getIdentifier());
		return LoaderResult.success(
		mWallpaperManager.getBitmapAsUser(selectedUser.getIdentifier()));

		} else {
		// When there is no selected user, or it's same as the current user, show the
		// system (possibly dynamic) wallpaper for the selected user.
		mCache = null;
		}
		return mCache;
		return LoaderResult.success(null);
		}
		} catch (RemoteException e) {
		Log.e(TAG, "System dead?" + e);
		return null;
		}
		}

		@@ -135,14 +139,16 @@ public class LockscreenWallpaper extends IWallpaperManagerCallback.Stub implemen
		return;
		}
		mSelectedUser = selectedUser;

		mH.removeCallbacks(this);
		mH.post(this);
		postUpdateWallpaper();
		}

		@Override
		public void onWallpaperChanged() {
		// Called on Binder thread.
		postUpdateWallpaper();
		}

		private void postUpdateWallpaper() {
		mH.removeCallbacks(this);
		mH.post(this);
		}
		@@ -150,10 +156,52 @@ public class LockscreenWallpaper extends IWallpaperManagerCallback.Stub implemen
		@Override
		public void run() {
		// Called in response to onWallpaperChanged on the main thread.
		mCached = false;
		mCache = null;
		getBitmap();
		mBar.updateMediaMetaData(true /* metaDataChanged /, true / allowEnterAnimation */);

		if (mLoader != null) {
		mLoader.cancel(false /* interrupt */);
		}

		final int currentUser = mCurrentUserId;
		final UserHandle selectedUser = mSelectedUser;
		mLoader = new AsyncTask<Void, Void, LoaderResult>() {
		@Override
		protected LoaderResult doInBackground(Void... params) {
		return loadBitmap(currentUser, selectedUser);
		}

		@Override
		protected void onPostExecute(LoaderResult result) {
		super.onPostExecute(result);
		if (isCancelled()) {
		return;
		}
		if (result.success) {
		mCached = true;
		mCache = result.bitmap;
		mBar.updateMediaMetaData(
		true /* metaDataChanged /, true / allowEnterAnimation */);
		}
		mLoader = null;
		}
		}.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
		}

		private static class LoaderResult {
		public final boolean success;
		public final Bitmap bitmap;

		LoaderResult(boolean success, Bitmap bitmap) {
		this.success = success;
		this.bitmap = bitmap;
		}

		static LoaderResult success(Bitmap b) {
		return new LoaderResult(true, b);
		}

		static LoaderResult fail() {
		return new LoaderResult(false, null);
		}
		}

		/**