| /* |
| * 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.devcamera; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Matrix; |
| import android.media.Image; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Some Bitmap utility functions. |
| */ |
| public class BitmapUtility { |
| |
| public static Bitmap bitmapFromJpeg(byte[] data) { |
| // 32K buffer. |
| byte[] decodeBuffer = new byte[32 * 1024]; // 32K buffer. |
| |
| BitmapFactory.Options opts = new BitmapFactory.Options(); |
| opts.inSampleSize = 16; // 3264 / 16 = 204. |
| opts.inTempStorage = decodeBuffer; |
| Bitmap b = BitmapFactory.decodeByteArray(data, 0, data.length, opts); |
| |
| return rotatedBitmap(b); |
| } |
| |
| public static Bitmap bitmapFromYuvImage(Image img) { |
| int w = img.getWidth(); |
| int h = img.getHeight(); |
| ByteBuffer buf0 = img.getPlanes()[0].getBuffer(); |
| int len = buf0.capacity(); |
| int[] colors = new int[len]; |
| int alpha = 255 << 24; |
| int green; |
| for (int i = 0; i < len; i++) { |
| green = ((int) buf0.get(i)) & 255; |
| colors[i] = green << 16 | green << 8 | green | alpha; |
| } |
| Bitmap b = Bitmap.createBitmap(colors, w, h, Bitmap.Config.ARGB_8888); |
| |
| return rotatedBitmap(b); |
| } |
| |
| /** |
| * Returns parameter bitmap rotated 90 degrees |
| */ |
| private static Bitmap rotatedBitmap(Bitmap b) { |
| Matrix mat = new Matrix(); |
| mat.postRotate(90); |
| Bitmap b2 = Bitmap.createBitmap(b, 0, 0,b.getWidth(),b.getHeight(), mat, true); |
| return b2; |
| } |
| |
| } |