Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zxing-cpp/core/src/BinaryBitmap.h @ 32:72c1b70d4f5c

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author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 21 Sep 2025 15:10:12 +0200
parents b50eed0cc0ef
children
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1 /*
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2 * Copyright 2016 Nu-book Inc.
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3 * Copyright 2016 ZXing authors
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4 * Copyright 2021 Axel Waggershauser
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5 */
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6 // SPDX-License-Identifier: Apache-2.0
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8 #pragma once
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10 #include "ImageView.h"
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12 #include <cstdint>
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13 #include <memory>
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14 #include <vector>
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16 namespace ZXing {
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18 class BitMatrix;
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20 using PatternRow = std::vector<uint16_t>;
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22 /**
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23 * This class is the core bitmap class used by ZXing to represent 1 bit data. Reader objects
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24 * accept a BinaryBitmap and attempt to decode it.
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25 */
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26 class BinaryBitmap
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27 {
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28 struct Cache;
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29 std::unique_ptr<Cache> _cache;
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30 bool _inverted = false;
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31 bool _closed = false;
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33 protected:
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34 const ImageView _buffer;
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36 /**
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37 * Converts a 2D array of luminance data to 1 bit (true means black).
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38 *
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39 * @return The 2D array of bits for the image, nullptr on error.
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40 */
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41 virtual std::shared_ptr<const BitMatrix> getBlackMatrix() const = 0;
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43 BitMatrix binarize(const uint8_t threshold) const;
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45 public:
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46 BinaryBitmap(const ImageView& buffer);
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47 virtual ~BinaryBitmap();
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49 int width() const { return _buffer.width(); }
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50 int height() const { return _buffer.height(); }
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52 /**
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53 * Converts one row of luminance data to a vector of ints denoting the widths of the bars and spaces.
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54 */
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55 virtual bool getPatternRow(int row, int rotation, PatternRow& res) const = 0;
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57 const BitMatrix* getBitMatrix() const;
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59 void invert();
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60 bool inverted() const { return _inverted; }
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62 void close();
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63 bool closed() const { return _closed; }
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64 };
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66 } // ZXing