Home | History | Annotate | Download | only in shell 
      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.shell;
     18 
     19 import android.graphics.Bitmap;
     20 import android.graphics.Point;
     21 import android.graphics.Rect;
     22 import android.hardware.display.DisplayManagerGlobal;
     23 import android.util.Log;
     24 import android.view.Display;
     25 import android.view.SurfaceControl;
     26 
     27 /**
     28  * Helper class used to take screenshots.
     29  *
     30  * TODO: logic below was copied and pasted from UiAutomation; it should be refactored into a common
     31  * component that could be used by both (Shell and UiAutomation).
     32  */
     33 final class Screenshooter {
     34 
     35     private static final String TAG = "Screenshooter";
     36 
     37     /**
     38      * Takes a screenshot.
     39      *
     40      * @return The screenshot bitmap on success, null otherwise.
     41      */
     42     static Bitmap takeScreenshot() {
     43         Display display = DisplayManagerGlobal.getInstance()
     44                 .getRealDisplay(Display.DEFAULT_DISPLAY);
     45         Point displaySize = new Point();
     46         display.getRealSize(displaySize);
     47         final int displayWidth = displaySize.x;
     48         final int displayHeight = displaySize.y;
     49 
     50         int rotation = display.getRotation();
     51         Rect crop = new Rect(0, 0, displayWidth, displayHeight);
     52         Log.d(TAG, "Taking screenshot of dimensions " + displayWidth + " x " + displayHeight);
     53         // Take the screenshot
     54         Bitmap screenShot =
     55                 SurfaceControl.screenshot(crop, displayWidth, displayHeight, rotation);
     56         if (screenShot == null) {
     57             Log.e(TAG, "Failed to take screenshot of dimensions " + displayWidth + " x "
     58                     + displayHeight);
     59             return null;
     60         }
     61 
     62         // Optimization
     63         screenShot.setHasAlpha(false);
     64 
     65         return screenShot;
     66     }
     67 }
     68