| /* |
| * Copyright (C) 2016 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.shell; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Point; |
| import android.hardware.display.DisplayManagerGlobal; |
| import android.os.Binder; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.view.Display; |
| import android.view.Surface; |
| import android.view.SurfaceControl; |
| |
| /** |
| * Helper class used to take screenshots. |
| * |
| * TODO: logic below was copied and pasted from UiAutomation; it should be refactored into a common |
| * component that could be used by both (Shell and UiAutomation). |
| */ |
| final class Screenshooter { |
| |
| private static final String TAG = "Screenshooter"; |
| |
| /** Rotation constant: Freeze rotation to 0 degrees (natural orientation) */ |
| public static final int ROTATION_FREEZE_0 = Surface.ROTATION_0; |
| |
| /** Rotation constant: Freeze rotation to 90 degrees . */ |
| public static final int ROTATION_FREEZE_90 = Surface.ROTATION_90; |
| |
| /** Rotation constant: Freeze rotation to 180 degrees . */ |
| public static final int ROTATION_FREEZE_180 = Surface.ROTATION_180; |
| |
| /** Rotation constant: Freeze rotation to 270 degrees . */ |
| public static final int ROTATION_FREEZE_270 = Surface.ROTATION_270; |
| |
| /** |
| * Takes a screenshot. |
| * |
| * @return The screenshot bitmap on success, null otherwise. |
| */ |
| static Bitmap takeScreenshot() { |
| Display display = DisplayManagerGlobal.getInstance() |
| .getRealDisplay(Display.DEFAULT_DISPLAY); |
| Point displaySize = new Point(); |
| display.getRealSize(displaySize); |
| final int displayWidth = displaySize.x; |
| final int displayHeight = displaySize.y; |
| |
| final float screenshotWidth; |
| final float screenshotHeight; |
| |
| final int rotation = display.getRotation(); |
| switch (rotation) { |
| case ROTATION_FREEZE_0: { |
| screenshotWidth = displayWidth; |
| screenshotHeight = displayHeight; |
| } break; |
| case ROTATION_FREEZE_90: { |
| screenshotWidth = displayHeight; |
| screenshotHeight = displayWidth; |
| } break; |
| case ROTATION_FREEZE_180: { |
| screenshotWidth = displayWidth; |
| screenshotHeight = displayHeight; |
| } break; |
| case ROTATION_FREEZE_270: { |
| screenshotWidth = displayHeight; |
| screenshotHeight = displayWidth; |
| } break; |
| default: { |
| throw new IllegalArgumentException("Invalid rotation: " |
| + rotation); |
| } |
| } |
| |
| Log.d(TAG, "Taking screenshot of dimensions " + displayWidth + " x " + displayHeight); |
| // Take the screenshot |
| Bitmap screenShot = |
| SurfaceControl.screenshot((int) screenshotWidth, (int) screenshotHeight); |
| if (screenShot == null) { |
| Log.e(TAG, "Failed to take screenshot of dimensions " + screenshotWidth + " x " |
| + screenshotHeight); |
| return null; |
| } |
| |
| // Rotate the screenshot to the current orientation |
| if (rotation != ROTATION_FREEZE_0) { |
| Bitmap unrotatedScreenShot = Bitmap.createBitmap(displayWidth, displayHeight, |
| Bitmap.Config.ARGB_8888); |
| Canvas canvas = new Canvas(unrotatedScreenShot); |
| canvas.translate(unrotatedScreenShot.getWidth() / 2, |
| unrotatedScreenShot.getHeight() / 2); |
| canvas.rotate(getDegreesForRotation(rotation)); |
| canvas.translate(- screenshotWidth / 2, - screenshotHeight / 2); |
| canvas.drawBitmap(screenShot, 0, 0, null); |
| canvas.setBitmap(null); |
| screenShot.recycle(); |
| screenShot = unrotatedScreenShot; |
| } |
| |
| // Optimization |
| screenShot.setHasAlpha(false); |
| |
| return screenShot; |
| } |
| |
| private static float getDegreesForRotation(int value) { |
| switch (value) { |
| case Surface.ROTATION_90: { |
| return 360f - 90f; |
| } |
| case Surface.ROTATION_180: { |
| return 360f - 180f; |
| } |
| case Surface.ROTATION_270: { |
| return 360f - 270f; |
| } default: { |
| return 0; |
| } |
| } |
| } |
| |
| } |