Merge "Fix screenshot buffer leaks" into udc-qpr-dev

core/java/android/app/IUiAutomationConnection.aidl

@@ -24,6 +24,8 @@ import android.view.SurfaceControl;
 import android.view.WindowContentFrameStats;
 import android.view.WindowAnimationFrameStats;
 import android.os.ParcelFileDescriptor;
+import android.window.ScreenCapture.ScreenCaptureListener;
+import android.window.ScreenCapture.LayerCaptureArgs;
 
 import java.util.List;
 
@@ -43,8 +45,8 @@ interface IUiAutomationConnection {
     void injectInputEventToInputFilter(in InputEvent event);
     void syncInputTransactions(boolean waitForAnimations);
     boolean setRotation(int rotation);
-    Bitmap takeScreenshot(in Rect crop);
-    Bitmap takeSurfaceControlScreenshot(in SurfaceControl surfaceControl);
+    boolean takeScreenshot(in Rect crop, in ScreenCaptureListener listener);
+    boolean takeSurfaceControlScreenshot(in SurfaceControl surfaceControl, in ScreenCaptureListener listener);
     boolean clearWindowContentFrameStats(int windowId);
     WindowContentFrameStats getWindowContentFrameStats(int windowId);
     void clearWindowAnimationFrameStats();

core/java/android/app/UiAutomation.java

@@ -37,6 +37,7 @@ import android.graphics.Bitmap;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.Region;
+import android.hardware.HardwareBuffer;
 import android.hardware.display.DisplayManagerGlobal;
 import android.os.Build;
 import android.os.Handler;
@@ -71,6 +72,8 @@ import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.accessibility.AccessibilityWindowInfo;
 import android.view.accessibility.IAccessibilityInteractionConnection;
 import android.view.inputmethod.EditorInfo;
+import android.window.ScreenCapture;
+import android.window.ScreenCapture.ScreenshotHardwareBuffer;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
@@ -1160,17 +1163,12 @@ public final class UiAutomation {
         Point displaySize = new Point();
         display.getRealSize(displaySize);
 
-        int rotation = display.getRotation();
-
         // Take the screenshot
-        Bitmap screenShot = null;
+        ScreenCapture.SynchronousScreenCaptureListener syncScreenCapture =
+                ScreenCapture.createSyncCaptureListener();
         try {
-            // Calling out without a lock held.
-            screenShot = mUiAutomationConnection.takeScreenshot(
-                    new Rect(0, 0, displaySize.x, displaySize.y));
-            if (screenShot == null) {
-                Log.e(LOG_TAG, "mUiAutomationConnection.takeScreenshot() returned null for display "
-                        + mDisplayId);
+            if (!mUiAutomationConnection.takeScreenshot(
+                    new Rect(0, 0, displaySize.x, displaySize.y), syncScreenCapture)) {
                 return null;
             }
         } catch (RemoteException re) {
@@ -1178,10 +1176,23 @@ public final class UiAutomation {
             return null;
         }
 
-        // Optimization
-        screenShot.setHasAlpha(false);
+        final ScreenshotHardwareBuffer screenshotBuffer =
+                syncScreenCapture.getBuffer();
+        Bitmap screenShot = screenshotBuffer.asBitmap();
+        if (screenShot == null) {
+            Log.e(LOG_TAG, "mUiAutomationConnection.takeScreenshot() returned null for display "
+                    + mDisplayId);
+            return null;
+        }
+        Bitmap swBitmap;
+        try (HardwareBuffer buffer = screenshotBuffer.getHardwareBuffer()) {
+            swBitmap = screenShot.copy(Bitmap.Config.ARGB_8888, false);
+        }
+        screenShot.recycle();
 
-        return screenShot;
+        // Optimization
+        swBitmap.setHasAlpha(false);
+        return swBitmap;
     }
 
     /**
@@ -1218,12 +1229,27 @@ public final class UiAutomation {
         // Apply a sync transaction to ensure SurfaceFlinger is flushed before capturing a
         // screenshot.
         new SurfaceControl.Transaction().apply(true);
+        ScreenCapture.SynchronousScreenCaptureListener syncScreenCapture =
+                ScreenCapture.createSyncCaptureListener();
         try {
-            return mUiAutomationConnection.takeSurfaceControlScreenshot(sc);
+            if (!mUiAutomationConnection.takeSurfaceControlScreenshot(sc, syncScreenCapture)) {
+                return null;
+            }
+
         } catch (RemoteException re) {
             Log.e(LOG_TAG, "Error while taking screenshot!", re);
             return null;
         }
+        ScreenCapture.ScreenshotHardwareBuffer captureBuffer =
+                syncScreenCapture.getBuffer();
+        Bitmap screenShot = captureBuffer.asBitmap();
+        Bitmap swBitmap;
+        try (HardwareBuffer buffer = captureBuffer.getHardwareBuffer()) {
+            swBitmap = screenShot.copy(Bitmap.Config.ARGB_8888, false);
+        }
+
+        screenShot.recycle();
+        return swBitmap;
     }
 
     /**

core/java/android/app/UiAutomationConnection.java

@@ -25,7 +25,6 @@ import android.annotation.Nullable;
 import android.annotation.UserIdInt;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
-import android.graphics.Bitmap;
 import android.graphics.Rect;
 import android.hardware.input.InputManager;
 import android.hardware.input.InputManagerGlobal;
@@ -51,8 +50,6 @@ import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.IAccessibilityManager;
 import android.window.ScreenCapture;
 import android.window.ScreenCapture.CaptureArgs;
-import android.window.ScreenCapture.ScreenshotHardwareBuffer;
-import android.window.ScreenCapture.SynchronousScreenCaptureListener;
 
 import libcore.io.IoUtils;
 
@@ -224,56 +221,54 @@ public final class UiAutomationConnection extends IUiAutomationConnection.Stub {
     }
 
     @Override
-    public Bitmap takeScreenshot(Rect crop) {
+    public boolean takeScreenshot(Rect crop, ScreenCapture.ScreenCaptureListener listener) {
         synchronized (mLock) {
             throwIfCalledByNotTrustedUidLocked();
             throwIfShutdownLocked();
             throwIfNotConnectedLocked();
         }
+
         final long identity = Binder.clearCallingIdentity();
         try {
             final CaptureArgs captureArgs = new CaptureArgs.Builder<>()
                     .setSourceCrop(crop)
                     .build();
-            SynchronousScreenCaptureListener syncScreenCapture =
-                    ScreenCapture.createSyncCaptureListener();
-            mWindowManager.captureDisplay(DEFAULT_DISPLAY, captureArgs,
-                    syncScreenCapture);
-            final ScreenshotHardwareBuffer screenshotBuffer =
-                    syncScreenCapture.getBuffer();
-            return screenshotBuffer == null ? null : screenshotBuffer.asBitmap();
+            mWindowManager.captureDisplay(DEFAULT_DISPLAY, captureArgs, listener);
         } catch (RemoteException re) {
             re.rethrowAsRuntimeException();
         } finally {
             Binder.restoreCallingIdentity(identity);
         }
-        return null;
+
+        return true;
     }
 
     @Nullable
     @Override
-    public Bitmap takeSurfaceControlScreenshot(@NonNull SurfaceControl surfaceControl) {
+    public boolean takeSurfaceControlScreenshot(@NonNull SurfaceControl surfaceControl,
+            ScreenCapture.ScreenCaptureListener listener) {
         synchronized (mLock) {
             throwIfCalledByNotTrustedUidLocked();
             throwIfShutdownLocked();
             throwIfNotConnectedLocked();
         }
 
-        ScreenCapture.ScreenshotHardwareBuffer captureBuffer;
         final long identity = Binder.clearCallingIdentity();
         try {
-            captureBuffer = ScreenCapture.captureLayers(
+            ScreenCapture.LayerCaptureArgs args =
                     new ScreenCapture.LayerCaptureArgs.Builder(surfaceControl)
-                            .setChildrenOnly(false)
-                            .build());
+                    .setChildrenOnly(false)
+                    .build();
+            int status = ScreenCapture.captureLayers(args, listener);
+
+            if (status != 0) {
+                return false;
+            }
         } finally {
             Binder.restoreCallingIdentity(identity);
         }
 
-        if (captureBuffer == null) {
-            return null;
-        }
-        return captureBuffer.asBitmap();
+        return true;
     }
 
     @Override