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QR-Code-scanner: integrate QUIRC library, implement QrDecoder, drop ZBar
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| add_library(quirc STATIC | ||
| quirc/lib/decode.c | ||
| quirc/lib/identify.c | ||
| quirc/lib/quirc.c | ||
| quirc/lib/version_db.c | ||
| ) | ||
| target_include_directories(quirc PUBLIC quirc/lib) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,21 @@ | ||
| file(GLOB_RECURSE SRC_SOURCES *.cpp) | ||
| file(GLOB_RECURSE SRC_HEADERS *.h) | ||
|
|
||
| add_library(qrdecoder STATIC | ||
| Decoder.cpp | ||
| ) | ||
| target_link_libraries(qrdecoder | ||
| PUBLIC | ||
| Qt5::Gui | ||
| PRIVATE | ||
| quirc | ||
| ) | ||
|
|
||
| if(WITH_SCANNER) | ||
| add_library(qrscanner | ||
| QrCodeScanner.cpp | ||
| QrScanThread.cpp | ||
| ) | ||
| target_link_libraries(qrscanner | ||
| PUBLIC | ||
| Qt5::Multimedia | ||
| qrdecoder | ||
| ) | ||
| endif() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| #include "Decoder.h" | ||
|
|
||
| #include <limits> | ||
|
|
||
| #include "quirc.h" | ||
|
|
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| QrDecoder::QrDecoder() | ||
| : m_qr(quirc_new()) | ||
| { | ||
| if (m_qr == nullptr) | ||
| { | ||
| throw std::runtime_error("QUIRC: failed to allocate memory"); | ||
| } | ||
| } | ||
|
|
||
| QrDecoder::~QrDecoder() | ||
| { | ||
| quirc_destroy(m_qr); | ||
| } | ||
|
|
||
| std::vector<std::string> QrDecoder::decode(const QImage &image) | ||
| { | ||
| if (image.format() == QImage::Format_Grayscale8) | ||
| { | ||
| return decodeGrayscale8(image); | ||
| } | ||
| return decodeGrayscale8(image.convertToFormat(QImage::Format_Grayscale8)); | ||
| } | ||
|
|
||
| std::vector<std::string> QrDecoder::decodeGrayscale8(const QImage &image) | ||
| { | ||
| if (quirc_resize(m_qr, image.width(), image.height()) < 0) | ||
| { | ||
| throw std::runtime_error("QUIRC: failed to allocate video memory"); | ||
| } | ||
|
|
||
| uint8_t *rawImage = quirc_begin(m_qr, nullptr, nullptr); | ||
| if (rawImage == nullptr) | ||
| { | ||
| throw std::runtime_error("QUIRC: failed to get image buffer"); | ||
| } | ||
| #if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0) | ||
| std::copy(image.constBits(), image.constBits() + image.sizeInBytes(), rawImage); | ||
| #else | ||
| std::copy(image.constBits(), image.constBits() + image.byteCount(), rawImage); | ||
| #endif | ||
| quirc_end(m_qr); | ||
|
|
||
| const int count = quirc_count(m_qr); | ||
| if (count < 0) | ||
| { | ||
| throw std::runtime_error("QUIRC: failed to get the number of recognized QR-codes"); | ||
| } | ||
|
|
||
| std::vector<std::string> result; | ||
| result.reserve(static_cast<size_t>(count)); | ||
| for (int index = 0; index < count; ++index) | ||
| { | ||
| quirc_code code; | ||
| quirc_extract(m_qr, index, &code); | ||
|
|
||
| quirc_data data; | ||
| const quirc_decode_error_t err = quirc_decode(&code, &data); | ||
| if (err == QUIRC_SUCCESS) | ||
| { | ||
| result.emplace_back(&data.payload[0], &data.payload[data.payload_len]); | ||
| } | ||
| } | ||
|
|
||
| return result; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| #include <QImage> | ||
|
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||
| struct quirc; | ||
|
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| class QrDecoder | ||
| { | ||
| public: | ||
| QrDecoder(const QrDecoder &) = delete; | ||
| QrDecoder &operator=(const QrDecoder &) = delete; | ||
|
|
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| QrDecoder(); | ||
| ~QrDecoder(); | ||
|
|
||
| std::vector<std::string> decode(const QImage &image); | ||
|
|
||
| private: | ||
| std::vector<std::string> decodeGrayscale8(const QImage &image); | ||
|
|
||
| private: | ||
| quirc *m_qr; | ||
| }; |
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