Khoren Markosyan
2 years ago
16 changed files with 143 additions and 419 deletions
@ -1,41 +0,0 @@ |
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#include "common.h" |
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#include <chrono> |
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#include <stdio.h> |
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#include <stdarg.h> |
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using namespace std; |
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bool isLogEnabled; |
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void setLoggingEnabled(bool enabled) |
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{ |
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isLogEnabled = enabled; |
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} |
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long long int get_now() |
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{ |
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return chrono::duration_cast<std::chrono::milliseconds>( |
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chrono::system_clock::now().time_since_epoch()) |
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.count(); |
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} |
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void platform_log(const char *fmt, ...) |
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{ |
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if (isLogEnabled) |
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{ |
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va_list args; |
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va_start(args, fmt); |
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#ifdef __ANDROID__ |
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__android_log_vprint(ANDROID_LOG_VERBOSE, "ndk", fmt, args); |
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#elif defined(IS_WIN32) |
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char *buf = new char[4096]; |
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std::fill_n(buf, 4096, '\0'); |
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_vsprintf_p(buf, 4096, fmt, args); |
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OutputDebugStringA(buf); |
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delete[] buf; |
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#else |
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vprintf(fmt, args); |
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#endif |
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va_end(args); |
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} |
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} |
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@ -1,26 +0,0 @@ |
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#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) |
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#define IS_WIN32 |
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#endif |
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#ifdef __ANDROID__ |
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#include <android/log.h> |
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#endif |
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#ifdef IS_WIN32 |
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#include <windows.h> |
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#endif |
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#if defined(__GNUC__) |
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// Attributes to prevent 'unused' function from being removed and to make it visible
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#define FUNCTION_ATTRIBUTE __attribute__((visibility("default"))) __attribute__((used)) |
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#elif defined(_MSC_VER) |
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// Marking a function for export
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#define FUNCTION_ATTRIBUTE __declspec(dllexport) |
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#endif |
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long long int get_now(); |
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void platform_log(const char *fmt, ...); |
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void setLoggingEnabled(bool enabled); |
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@ -1,146 +0,0 @@ |
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#include "common.h" |
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#include "ReadBarcode.h" |
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#include "MultiFormatWriter.h" |
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#include "TextUtfEncoding.h" |
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#include "BitMatrix.h" |
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#include "native_zxing.h" |
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#include <locale> |
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#include <codecvt> |
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#include <stdarg.h> |
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using namespace ZXing; |
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using namespace std; |
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extern "C" |
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{ |
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FUNCTION_ATTRIBUTE |
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void setLogEnabled(int enable) |
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{ |
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setLoggingEnabled(enable); |
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} |
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FUNCTION_ATTRIBUTE |
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char const *version() |
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{ |
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return "1.4.0"; |
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} |
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FUNCTION_ATTRIBUTE |
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struct CodeResult readBarcode(char *bytes, int format, int width, int height, int cropWidth, int cropHeight, int tryHarder, int tryRotate) |
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{ |
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long long start = get_now(); |
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long length = width * height; |
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auto *data = new uint8_t[length]; |
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memcpy(data, bytes, length); |
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ImageView image{data, width, height, ImageFormat::Lum}; |
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if (cropWidth > 0 && cropHeight > 0 && cropWidth < width && cropHeight < height) |
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{ |
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image = image.cropped(width / 2 - cropWidth / 2, height / 2 - cropHeight / 2, cropWidth, cropHeight); |
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} |
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DecodeHints hints = DecodeHints().setTryHarder(tryHarder).setTryRotate(tryRotate).setFormats(BarcodeFormat(format)); |
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Result result = ReadBarcode(image, hints); |
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struct CodeResult code = {false, nullptr}; |
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if (result.isValid()) |
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{ |
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resultToCodeResult(&code, result); |
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} |
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delete[] data; |
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delete[] bytes; |
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int evalInMillis = static_cast<int>(get_now() - start); |
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platform_log("Read Barcode in: %d ms\n", evalInMillis); |
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return code; |
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} |
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FUNCTION_ATTRIBUTE |
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struct CodeResults readBarcodes(char *bytes, int format, int width, int height, int cropWidth, int cropHeight, int tryHarder, int tryRotate) |
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{ |
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long long start = get_now(); |
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long length = width * height; |
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auto *data = new uint8_t[length]; |
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memcpy(data, bytes, length); |
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ImageView image{data, width, height, ImageFormat::Lum}; |
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if (cropWidth > 0 && cropHeight > 0 && cropWidth < width && cropHeight < height) |
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{ |
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image = image.cropped(width / 2 - cropWidth / 2, height / 2 - cropHeight / 2, cropWidth, cropHeight); |
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} |
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DecodeHints hints = DecodeHints().setTryHarder(tryHarder).setTryRotate(tryRotate).setFormats(BarcodeFormat(format)); |
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Results results = ReadBarcodes(image, hints); |
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auto *codes = new struct CodeResult[results.size()]; |
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int i = 0; |
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for (auto &result : results) |
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{ |
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struct CodeResult code = {false, nullptr}; |
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if (result.isValid()) |
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{ |
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resultToCodeResult(&code, result); |
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codes[i] = code; |
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i++; |
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} |
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} |
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delete[] data; |
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delete[] bytes; |
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int evalInMillis = static_cast<int>(get_now() - start); |
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platform_log("Read Barcode in: %d ms\n", evalInMillis); |
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return {i, codes}; |
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} |
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FUNCTION_ATTRIBUTE |
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struct EncodeResult encodeBarcode(char *contents, int width, int height, int format, int margin, int eccLevel) |
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{ |
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long long start = get_now(); |
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struct EncodeResult result = {0, contents, format, nullptr, 0, nullptr}; |
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try |
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{ |
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auto writer = MultiFormatWriter(BarcodeFormat(format)).setMargin(margin).setEccLevel(eccLevel).setEncoding(CharacterSet::UTF8); |
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auto bitMatrix = writer.encode(TextUtfEncoding::FromUtf8(string(contents)), width, height); |
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result.data = ToMatrix<int8_t>(bitMatrix).data(); |
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result.length = bitMatrix.width() * bitMatrix.height(); |
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result.isValid = true; |
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} |
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catch (const exception &e) |
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{ |
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platform_log("Can't encode text: %s\nError: %s\n", contents, e.what()); |
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result.error = new char[strlen(e.what()) + 1]; |
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strcpy(result.error, e.what()); |
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} |
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int evalInMillis = static_cast<int>(get_now() - start); |
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platform_log("Encode Barcode in: %d ms\n", evalInMillis); |
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return result; |
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} |
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FUNCTION_ATTRIBUTE |
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void resultToCodeResult(struct CodeResult *code, Result result) |
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{ |
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code->isValid = result.isValid(); |
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code->format = static_cast<int>(result.format()); |
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code->bytes = result.bytes().data(); |
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code->length = result.bytes().size(); |
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string text = result.text(); |
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code->text = new char[text.length() + 1]; |
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strcpy(code->text, text.c_str()); |
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auto p = result.position(); |
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auto tl = p.topLeft(); |
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auto tr = p.topRight(); |
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auto bl = p.bottomLeft(); |
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auto br = p.bottomRight(); |
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code->pos = new Pos{tl.x, tl.y, tr.x, tr.y, bl.x, bl.y, br.x, br.y}; |
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platform_log("Result: %s\n", code->text); |
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} |
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} |
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@ -1,119 +0,0 @@ |
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#ifdef __cplusplus |
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extern "C" |
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{ |
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#endif |
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/**
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* @brief Pos is a position of a barcode in a image. |
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* |
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*/ |
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struct Pos |
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{ |
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int topLeftX; ///< x coordinate of top left corner of barcode
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int topLeftY; ///< y coordinate of top left corner of barcode
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int topRightX; ///< x coordinate of top right corner of barcode
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int topRightY; ///< y coordinate of top right corner of barcode
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int bottomLeftX; ///< x coordinate of bottom left corner of barcode
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int bottomLeftY; ///< y coordinate of bottom left corner of barcode
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int bottomRightX; ///< x coordinate of bottom right corner of barcode
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int bottomRightY; ///< y coordinate of bottom right corner of barcode
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}; |
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/**
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* @brief The CodeResult class encapsulates the result of decoding a barcode within an image. |
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*/ |
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struct CodeResult |
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{ |
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int isValid; ///< Whether the barcode was successfully decoded
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char *text; ///< The decoded text
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const unsigned char *bytes; ///< The bytes is the raw / standard content without any modifications like character set conversions
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int length; ///< The length of the bytes
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int format; ///< The format of the barcode
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struct Pos *pos; ///< The position of the barcode within the image
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}; |
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/**
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* @brief The CodeResults class encapsulates the result of decoding multiple barcodes within an image. |
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*/ |
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struct CodeResults |
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{ |
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int count; ///< The number of barcodes detected
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struct CodeResult *results; ///< The results of the barcode decoding
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}; |
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/**
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* @brief EncodeResult encapsulates the result of encoding a barcode. |
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* |
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*/ |
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struct EncodeResult |
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{ |
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int isValid; ///< Whether the barcode was successfully encoded
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char *text; ///< The encoded text
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int format; ///< The format of the barcode
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const signed char *data; ///< The encoded data
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int length; ///< The length of the encoded data
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char *error; ///< The error message
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}; |
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/**
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* @brief Enables or disables the logging of the library. |
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* @param enable Whether to enable or disable the logging. |
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* |
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* @param enabled |
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*/ |
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void setLogEnabled(int enable); |
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/**
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* Returns the version of the zxing-cpp library. |
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* |
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* @return The version of the zxing-cpp library. |
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*/ |
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char const *version(); |
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/**
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* @brief Read barcode from image bytes. |
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* @param bytes Image bytes. |
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* @param format Specify a set of BarcodeFormats that should be searched for. |
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* @param width Image width in pixels. |
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* @param height Image height in pixels. |
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* @param cropWidth Crop width. |
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* @param cropHeight Crop height. |
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* @param tryHarder Spend more time to try to find a barcode; optimize for accuracy, not speed. |
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* @param tryRotate Also try detecting code in 90, 180 and 270 degree rotated images. |
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* @return The barcode result. |
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*/ |
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struct CodeResult readBarcode(char *bytes, int format, int width, int height, int cropWidth, int cropHeight, int tryHarder, int tryRotate); |
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/**
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* @brief Read barcodes from image bytes. |
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* @param bytes Image bytes. |
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* @param format Specify a set of BarcodeFormats that should be searched for. |
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* @param width Image width in pixels. |
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* @param height Image height in pixels. |
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* @param cropWidth Crop width. |
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* @param cropHeight Crop height. |
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* @param tryHarder Spend more time to try to find a barcode, optimize for accuracy, not speed. |
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* @param tryRotate Also try detecting code in 90, 180 and 270 degree rotated images. |
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* @return The barcode results. |
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*/ |
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struct CodeResults readBarcodes(char *bytes, int format, int width, int height, int cropWidth, int cropHeight, int tryHarder, int tryRotate); |
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/**
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* @brief Encode a string into a barcode |
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* @param contents The string to encode |
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* @param width The width of the barcode in pixels. |
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* @param height The height of the barcode in pixels. |
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* @param format The format of the barcode |
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* @param margin The margin of the barcode |
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* @param eccLevel The error correction level of the barcode. Used for Aztec, PDF417, and QRCode only, [0-8]. |
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* @return The barcode data |
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*/ |
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struct EncodeResult encodeBarcode(char *contents, int width, int height, int format, int margin, int eccLevel); |
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// Private functions
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void resultToCodeResult(struct CodeResult *code, ZXing::Result result); |
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#ifdef __cplusplus |
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} |
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#endif |
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