init - 初始化项目

modules/wechat_qrcode/src/zxing/common/bytematrix.cpp

@@ -0,0 +1,50 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+//
+// Tencent is pleased to support the open source community by making WeChat QRCode available.
+// Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
+#include "../../precomp.hpp"
+#include "bytematrix.hpp"
+
+using zxing::ArrayRef;
+using zxing::ByteMatrix;
+using zxing::ErrorHandler;
+using zxing::Ref;
+
+void ByteMatrix::init(int _width, int _height) {
+    if (_width < 1 || _height < 1) {
+        return;
+    }
+    this->width = _width;
+    this->height = _height;
+    bytes = new unsigned char[width * height];
+    row_offsets = new int[height];
+    row_offsets[0] = 0;
+    for (int i = 1; i < height; i++) {
+        row_offsets[i] = row_offsets[i - 1] + width;
+    }
+}
+
+ByteMatrix::ByteMatrix(int dimension) { init(dimension, dimension); }
+
+ByteMatrix::ByteMatrix(int _width, int _height) { init(_width, _height); }
+
+ByteMatrix::ByteMatrix(int _width, int _height, ArrayRef<char> source) {
+    init(_width, _height);
+    int size = _width * _height;
+    memcpy(&bytes[0], &source[0], size);
+}
+
+ByteMatrix::~ByteMatrix() {
+    if (bytes) delete[] bytes;
+    if (row_offsets) delete[] row_offsets;
+}
+
+unsigned char* ByteMatrix::getByteRow(int y, ErrorHandler& err_handler) {
+    if (y < 0 || y >= getHeight()) {
+        err_handler = IllegalArgumentErrorHandler("Requested row is outside the image.");
+        return NULL;
+    }
+    return &bytes[row_offsets[y]];
+}