From 5cc9a31534749d8bc220ab577b1e201c0239e282 Mon Sep 17 00:00:00 2001
From: Winson Chung <winsonc@google.com>
Date: Mon, 11 Feb 2013 14:58:45 -0800
Subject: [PATCH] Manually recycling bitmap memory when rotating ss, resetting
 canvas bitmap, adding logging. (Bug 7974275)

Change-Id: I1b0590a297610ee5fee4e68222144780ab6e55ec
---
 .../systemui/screenshot/GlobalScreenshot.java | 32 +++++++++++++++++++
 .../screenshot/TakeScreenshotService.java     |  4 +++
 2 files changed, 36 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java b/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
index 280b36829496c..ddfaad5296ef1 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
@@ -45,6 +45,7 @@ import android.os.Environment;
 import android.os.Process;
 import android.provider.MediaStore;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.Display;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
@@ -86,6 +87,8 @@ class SaveImageInBackgroundData {
  */
 class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Void,
         SaveImageInBackgroundData> {
+    private static final String TAG = "SaveImageInBackgroundTask";
+
     private static final String SCREENSHOTS_DIR_NAME = "Screenshots";
     private static final String SCREENSHOT_FILE_NAME_TEMPLATE = "Screenshot_%s.png";
     private static final String SCREENSHOT_SHARE_SUBJECT_TEMPLATE = "Screenshot (%s)";
@@ -138,6 +141,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
                             (shortSide - mImageHeight) / 2);
         c.drawBitmap(data.image, matrix, paint);
         c.drawColor(0x40FFFFFF);
+        c.setBitmap(null);
 
         Bitmap croppedIcon = Bitmap.createScaledBitmap(preview, iconSize, iconSize, true);
 
@@ -167,6 +171,8 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
         mNotificationBuilder.setLargeIcon(croppedIcon);
         // But we still don't set it for the expanded view, allowing the smallIcon to show here.
         mNotificationStyle.bigLargeIcon(null);
+
+        Log.d(TAG, "SaveImageInBackgroundTask constructor");
     }
 
     @Override
@@ -174,6 +180,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
         if (params.length != 1) return null;
         if (isCancelled()) {
             params[0].clearImage();
+            Log.d(TAG, "doInBackground cancelled");
             return null;
         }
 
@@ -238,6 +245,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
             // mounted
             params[0].clearImage();
             params[0].result = 1;
+            Log.d(TAG, "doInBackground failed");
         }
 
         // Recycle the bitmap data
@@ -245,6 +253,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
             image.recycle();
         }
 
+        Log.d(TAG, "doInBackground complete");
         return params[0];
     }
 
@@ -253,6 +262,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
         if (isCancelled()) {
             params.finisher.run();
             params.clearImage();
+            Log.d(TAG, "onPostExecute cancelled");
             return;
         }
 
@@ -280,6 +290,7 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
             mNotificationManager.notify(mNotificationId, n);
         }
         params.finisher.run();
+        Log.d(TAG, "onPostExecute complete");
     }
 }
 
@@ -290,6 +301,8 @@ class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Voi
  *     type of gallery?
  */
 class GlobalScreenshot {
+    private static final String TAG = "GlobalScreenshot";
+
     private static final int SCREENSHOT_NOTIFICATION_ID = 789;
     private static final int SCREENSHOT_FLASH_TO_PEAK_DURATION = 130;
     private static final int SCREENSHOT_DROP_IN_DURATION = 430;
@@ -381,12 +394,15 @@ class GlobalScreenshot {
         // Setup the Camera shutter sound
         mCameraSound = new MediaActionSound();
         mCameraSound.load(MediaActionSound.SHUTTER_CLICK);
+
+        Log.d(TAG, "GlobalScreenshot constructor");
     }
 
     /**
      * Creates a new worker thread and saves the screenshot to the media store.
      */
     private void saveScreenshotInWorkerThread(Runnable finisher) {
+        Log.d(TAG, "saveScreenshotInWorkerThread");
         SaveImageInBackgroundData data = new SaveImageInBackgroundData();
         data.context = mContext;
         data.image = mScreenBitmap;
@@ -394,6 +410,7 @@ class GlobalScreenshot {
         data.finisher = finisher;
         if (mSaveInBgTask != null) {
             mSaveInBgTask.cancel(false);
+            Log.d(TAG, "saveScreenshotInWorkerThread cancel");
         }
         mSaveInBgTask = new SaveImageInBackgroundTask(mContext, data, mNotificationManager,
                 SCREENSHOT_NOTIFICATION_ID).execute(data);
@@ -418,6 +435,8 @@ class GlobalScreenshot {
      * Takes a screenshot of the current display and shows an animation.
      */
     void takeScreenshot(Runnable finisher, boolean statusBarVisible, boolean navBarVisible) {
+        Log.d(TAG, "takeScreenshot");
+
         // We need to orient the screenshot correctly (and the Surface api seems to take screenshots
         // only in the natural orientation of the device :!)
         mDisplay.getRealMetrics(mDisplayMetrics);
@@ -431,6 +450,8 @@ class GlobalScreenshot {
             mDisplayMatrix.mapPoints(dims);
             dims[0] = Math.abs(dims[0]);
             dims[1] = Math.abs(dims[1]);
+
+            Log.d(TAG, "takeScreenshot requiresRotation");
         }
 
         // Take the screenshot
@@ -438,6 +459,7 @@ class GlobalScreenshot {
         if (mScreenBitmap == null) {
             notifyScreenshotError(mContext, mNotificationManager);
             finisher.run();
+            Log.d(TAG, "takeScreenshot null bitmap");
             return;
         }
 
@@ -451,7 +473,10 @@ class GlobalScreenshot {
             c.translate(-dims[0] / 2, -dims[1] / 2);
             c.drawBitmap(mScreenBitmap, 0, 0, null);
             c.setBitmap(null);
+            // Recycle the previous bitmap
+            mScreenBitmap.recycle();
             mScreenBitmap = ss;
+            Log.d(TAG, "takeScreenshot rotation bitmap created");
         }
 
         // Optimizations
@@ -461,6 +486,7 @@ class GlobalScreenshot {
         // Start the post-screenshot animation
         startAnimation(finisher, mDisplayMetrics.widthPixels, mDisplayMetrics.heightPixels,
                 statusBarVisible, navBarVisible);
+        Log.d(TAG, "takeScreenshot startedAnimation");
     }
 
 
@@ -469,6 +495,7 @@ class GlobalScreenshot {
      */
     private void startAnimation(final Runnable finisher, int w, int h, boolean statusBarVisible,
             boolean navBarVisible) {
+        Log.d(TAG, "startAnimation");
         // Add the view for the animation
         mScreenshotView.setImageBitmap(mScreenBitmap);
         mScreenshotLayout.requestFocus();
@@ -477,9 +504,11 @@ class GlobalScreenshot {
         if (mScreenshotAnimation != null) {
             mScreenshotAnimation.end();
             mScreenshotAnimation.removeAllListeners();
+            Log.d(TAG, "startAnimation reset previous animations");
         }
 
         mWindowManager.addView(mScreenshotLayout, mWindowLayoutParams);
+        Log.d(TAG, "startAnimation layout added to WM");
         ValueAnimator screenshotDropInAnim = createScreenshotDropInAnimation();
         ValueAnimator screenshotFadeOutAnim = createScreenshotDropOutAnimation(w, h,
                 statusBarVisible, navBarVisible);
@@ -495,6 +524,7 @@ class GlobalScreenshot {
                 // Clear any references to the bitmap
                 mScreenBitmap = null;
                 mScreenshotView.setImageBitmap(null);
+                Log.d(TAG, "startAnimation onAnimationEnd");
             }
         });
         mScreenshotLayout.post(new Runnable() {
@@ -506,6 +536,7 @@ class GlobalScreenshot {
                 mScreenshotView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
                 mScreenshotView.buildLayer();
                 mScreenshotAnimation.start();
+                Log.d(TAG, "startAnimation post runnable");
             }
         });
     }
@@ -643,6 +674,7 @@ class GlobalScreenshot {
     }
 
     static void notifyScreenshotError(Context context, NotificationManager nManager) {
+        Log.d(TAG, "notifyScreenshotError");
         Resources r = context.getResources();
 
         // Clear all existing notification, compose the new notification and show it
diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/TakeScreenshotService.java b/packages/SystemUI/src/com/android/systemui/screenshot/TakeScreenshotService.java
index 456b5fa7b0a64..1954af8c12966 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/TakeScreenshotService.java
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/TakeScreenshotService.java
@@ -23,6 +23,7 @@ import android.os.IBinder;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
+import android.util.Log;
 
 public class TakeScreenshotService extends Service {
     private static final String TAG = "TakeScreenshotService";
@@ -37,12 +38,15 @@ public class TakeScreenshotService extends Service {
                     final Messenger callback = msg.replyTo;
                     if (mScreenshot == null) {
                         mScreenshot = new GlobalScreenshot(TakeScreenshotService.this);
+                        Log.d(TAG, "Global screenshot initialized");
                     }
+                    Log.d(TAG, "Global screenshot captured");
                     mScreenshot.takeScreenshot(new Runnable() {
                         @Override public void run() {
                             Message reply = Message.obtain(null, 1);
                             try {
                                 callback.send(reply);
+                                Log.d(TAG, "Global screenshot completed");
                             } catch (RemoteException e) {
                             }
                         }