Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zxing-cpp/core/src/BitMatrixIO.cpp @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /*
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2 * Copyright 2017 Huy Cuong Nguyen
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3 * Copyright 2017 Axel Waggershauser
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4 */
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5 // SPDX-License-Identifier: Apache-2.0
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7 #include "BitMatrixIO.h"
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9 #include <array>
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10 #include <fstream>
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11 #include <sstream>
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13 namespace ZXing {
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15 std::string ToString(const BitMatrix& matrix, char one, char zero, bool addSpace, bool printAsCString)
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16 {
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17 std::string result;
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18 result.reserve((addSpace ? 2 : 1) * (matrix.width() * matrix.height()) + matrix.height());
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19 for (int y = 0; y < matrix.height(); ++y) {
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20 if (printAsCString)
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21 result += '"';
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22 for (auto bit : matrix.row(y)) {
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23 result += bit ? one : zero;
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24 if (addSpace)
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25 result += ' ';
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26 }
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27 if (printAsCString)
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28 result += "\\n\"";
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29 result += '\n';
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30 }
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31 return result;
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32 }
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34 std::string ToString(const BitMatrix& matrix, bool inverted)
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35 {
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36 constexpr auto map = std::array{" ", "▀", "▄", "█"};
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37 std::string res;
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39 for (int y = 0; y < matrix.height(); y += 2) {
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40 for (int x = 0; x < matrix.width(); ++x) {
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41 int tp = matrix.get(x, y) ^ inverted;
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42 int bt = (matrix.height() == 1 && tp) || (y + 1 < matrix.height() && (matrix.get(x, y + 1) ^ inverted));
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43 res += map[tp | (bt << 1)];
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44 }
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45 res.push_back('\n');
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46 }
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48 return res;
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49 }
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51 std::string ToSVG(const BitMatrix& matrix)
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52 {
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53 // see https://stackoverflow.com/questions/10789059/create-qr-code-in-vector-image/60638350#60638350
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55 const int width = matrix.width();
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56 const int height = matrix.height();
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57 std::ostringstream out;
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59 out << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
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60 << "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"0 0 " << width << " " << height
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61 << "\" stroke=\"none\">\n"
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62 << "<path d=\"";
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63
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64 for (int y = 0; y < height; ++y)
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65 for (int x = 0; x < width; ++x)
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66 if (matrix.get(x, y))
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67 out << "M" << x << "," << y << "h1v1h-1z";
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69 out << "\"/>\n</svg>";
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71 return out.str();
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72 }
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73
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74 BitMatrix ParseBitMatrix(const std::string& str, char one, bool expectSpace)
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75 {
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76 auto lineLength = str.find('\n');
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77 if (lineLength == std::string::npos)
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78 return {};
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80 int strStride = expectSpace ? 2 : 1;
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81 int height = narrow_cast<int>(str.length() / (lineLength + 1));
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82 int width = narrow_cast<int>(lineLength / strStride);
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83 BitMatrix mat(width, height);
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84 for (int y = 0; y < height; ++y) {
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85 size_t offset = y * (lineLength + 1);
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86 for (int x = 0; x < width; ++x, offset += strStride) {
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87 if (str[offset] == one)
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88 mat.set(x, y);
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89 }
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90 }
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91 return mat;
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92 }
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93
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94 void SaveAsPBM(const BitMatrix& matrix, const std::string filename, int quietZone)
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95 {
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96 auto out = ToMatrix<uint8_t>(Inflate(matrix.copy(), 0, 0, quietZone));
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97 std::ofstream file(filename);
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98 file << "P5\n" << out.width() << ' ' << out.height() << "\n255\n";
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99 file.write(reinterpret_cast<const char*>(out.data()), out.size());
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
100 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
101
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
102 } // ZXing