From be4b64b65076fa702f2b3720e87b367643f9ca4f Mon Sep 17 00:00:00 2001 From: dswitkin Date: Fri, 11 Sep 2009 14:02:39 +0000 Subject: [PATCH] This should have been deleted in the last change. git-svn-id: http://zxing.googlecode.com/svn/trunk@1050 59b500cc-1b3d-0410-9834-0bbf25fbcc57 --- .../client/android/YUVLuminanceSource.java | 130 ------------------ 1 file changed, 130 deletions(-) delete mode 100644 android/src/com/google/zxing/client/android/YUVLuminanceSource.java diff --git a/android/src/com/google/zxing/client/android/YUVLuminanceSource.java b/android/src/com/google/zxing/client/android/YUVLuminanceSource.java deleted file mode 100644 index 36260380..00000000 --- a/android/src/com/google/zxing/client/android/YUVLuminanceSource.java +++ /dev/null @@ -1,130 +0,0 @@ -/* - * Copyright 2009 ZXing authors - * - * 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.google.zxing.client.android; - -import com.google.zxing.LuminanceSource; - -import android.graphics.Bitmap; - -/** - * This object extends LuminanceSource around an array of YUV data returned from the camera driver, - * with the option to crop to a rectangle within the full data. This can be used to exclude - * superfluous pixels around the perimeter and speed up decoding. - * - * @author dswitkin@google.com (Daniel Switkin) - */ -public final class YUVLuminanceSource extends LuminanceSource { - - private final byte[] yuvData; - private final int dataWidth; - private final int dataHeight; - private final int left; - private final int top; - - public YUVLuminanceSource(byte[] yuvData, int dataWidth, int dataHeight, int left, int top, - int width, int height) { - super(width, height); - - if (left + width > dataWidth || top + height > dataHeight) { - throw new IllegalArgumentException("Crop rectangle does not fit within image data."); - } - - this.yuvData = yuvData; - this.dataWidth = dataWidth; - this.dataHeight = dataHeight; - this.left = left; - this.top = top; - } - - public byte[] getRow(int y, byte[] row) { - if (y < 0 || y >= getHeight()) { - throw new IllegalArgumentException("Requested row is outside the image: " + y); - } - int width = getWidth(); - if (row == null || row.length < width) { - row = new byte[width]; - } - int offset = (y + top) * dataWidth + left; - System.arraycopy(yuvData, offset, row, 0, width); - return row; - } - - public byte[] getMatrix() { - int width = getWidth(); - int height = getHeight(); - - // If the caller asks for the entire underlying image, save the copy and give them the - // original data. The docs specifically warn that result.length must be ignored. - if (width == dataWidth && height == dataHeight) { - return yuvData; - } - - int area = width * height; - byte[] matrix = new byte[area]; - int inputOffset = top * dataWidth + left; - - // If the width matches the full width of the underlying data, perform a single copy. - if (width == dataWidth) { - System.arraycopy(yuvData, inputOffset, matrix, 0, area); - return matrix; - } - - // Otherwise copy one cropped row at a time. - byte[] yuv = yuvData; - for (int y = 0; y < height; y++) { - int outputOffset = y * width; - System.arraycopy(yuv, inputOffset, matrix, outputOffset, width); - inputOffset += dataWidth; - } - return matrix; - } - - public boolean isCropSupported() { - return true; - } - - public LuminanceSource crop(int left, int top, int width, int height) { - return new YUVLuminanceSource(yuvData, dataWidth, dataHeight, left, top, width, height); - } - - /** - * Creates a greyscale Android Bitmap from the YUV data based on the crop rectangle. - * - * @return An 8888 bitmap. - */ - public Bitmap renderToBitmap() { - int width = getWidth(); - int height = getHeight(); - int[] pixels = new int[width * height]; - byte[] yuv = yuvData; - int inputOffset = top * dataWidth + left; - - for (int y = 0; y < height; y++) { - int outputOffset = y * width; - for (int x = 0; x < width; x++) { - int grey = yuv[inputOffset + x] & 0xff; - pixels[outputOffset + x] = (0xff << 24) | (grey << 16) | (grey << 8) | grey; - } - inputOffset += dataWidth; - } - - Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); - bitmap.setPixels(pixels, 0, width, 0, 0, width, height); - return bitmap; - } - -} -- 2.20.1