# ZXing C++ Port
[](https://travis-ci.org/glassechidna/zxing-cpp)
[ZXing](https://github.com/zxing/zxing) is/was a Java library.
At some point a complete C++ port/rewrite was created and maintained in the official [ZXing](https://github.com/zxing/zxing) repo. However, at the time of writing the C++ port is no longer maintained and has been removed from the official ZXing repo.
This project was forked from the [last ZXing commit](https://github.com/zxing/zxing/commit/00f6340) to contain the C++ project, with the following exceptions
* scons (Python) build system has been deleted.
* Deleted black box tests, because they refer to a large test data in ZXing repo.
* Added appropriate copyright/licensing details (based on those in the ZXing repo).
* Updated README.md
Removal of build systems was done to minimise maintenance burden.
If tests and XCode projects (other than those produced automatically be CMake) are desired, then another repo should be created and this repo referenced as a submodule.
# Building using CMake
CMake is a tool, that generates native makefiles and workspaces. It integrates well with a number of IDEs including Qt Creator and Visual Studio.
Usage with CLion or Qt Creator:
1. Simply open `CMakeLists.txt` as a new project
2. Additional command line arguments can be specified (see below)
Usage with Makefiles, Visual Studio, etc. (see `cmake --help` for a complete list of generators):
1. `mkdir build`
2. `cd` to `build`
3. Unix: run `cmake -G "Unix Makefiles" ..`
3. Windows: run `cmake -G "Visual Studio 10" ..`
You can switch between build modes by specifying:
- `-DCMAKE_BUILD_TYPE=Debug` or
- `-DCMAKE_BUILD_TYPE=Release`
# OpenCV integration
When build on a system where opencv is installed the open cv bridge classes and executable will be built too.
# Development tips
To profile the code (very useful to optimize the code):
1. Install Valgrind
2. Run `valgrind --tool=callgrind build/zxing - path/to/test/data/*.jpg > report.html`
3. Analyze output using KCachegrind
zxing库（c++)
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zxing库（c++) （258个子文件） 
AUTHORS 2KB win_iconv.c 59KB BigUnsigned.cc 22KB BigInteger.cc 11KB BigUnsignedInABase.cc 4KB BigIntegerAlgorithms.cc 2KB BigIntegerUtils.cc 1KB ChangeLog 9KB FindCPPUNIT.cmake 2KB FindIconv.cmake 1KB COPYING 11KB lodepng.cpp 212KB jpgd.cpp 85KB BitMatrixParser.cpp 51KB Version.cpp 29KB Detector.cpp 25KB LinesSampler.cpp 24KB DecodedBitStreamParser.cpp 20KB Detector.cpp 18KB FinderPatternFinder.cpp 18KB Detector.cpp 15KB Code128Reader.cpp 15KB DecodedBitStreamParser.cpp 14KB Decoder.cpp 14KB DecodedBitStreamParser.cpp 13KB Detector.cpp 12KB BitMatrixParser.cpp 12KB CodaBarReader.cpp 11KB ITFReader.cpp 11KB Code39Reader.cpp 10KB UPCEANReader.cpp 10KB MultiFinderPatternFinder.cpp 9KB WhiteRectangleDetector.cpp 9KB Code93Reader.cpp 9KB main.cpp 9KB ModulusPoly.cpp 9KB OneDReader.cpp 7KB HybridBinarizer.cpp 7KB Version.cpp 7KB ErrorCorrection.cpp 7KB GenericGFPoly.cpp 7KB AlignmentPatternFinder.cpp 7KB main.cpp 7KB GlobalHistogramBinarizer.cpp 7KB MonochromeRectangleDetector.cpp 6KB StringUtils.cpp 6KB ReedSolomonDecoder.cpp 6KB BitMatrixParser.cpp 6KB PDF417Reader.cpp 5KB BitArrayTest.cpp 5KB PerspectiveTransform.cpp 5KB DecodeHints.cpp 5KB GenericMultipleBarcodeReader.cpp 5KB FormatInformation.cpp 5KB Decoder.cpp 4KB UPCEReader.cpp 4KB MultiFormatReader.cpp 4KB GridSampler.cpp 4KB BitArray.cpp 4KB ReedSolomonTest.cpp 4KB DataBlock.cpp 4KB MultiFormatUPCEANReader.cpp 4KB DataBlock.cpp 4KB GenericGF.cpp 4KB ResultPoint.cpp 4KB CharacterSetECI.cpp 4KB DataMask.cpp 4KB ImageReaderSource.cpp 4KB BitMatrix.cpp 3KB Decoder.cpp 3KB MultiFormatOneDReader.cpp 3KB Decoder.cpp 3KB FormatInformationTest.cpp 3KB GreyscaleLuminanceSource.cpp 3KB VersionTest.cpp 3KB ModulusGF.cpp 3KB DataMaskTest.cpp 3KB GreyscaleRotatedLuminanceSource.cpp 3KB Mode.cpp 3KB LuminanceSource.cpp 3KB EAN13Reader.cpp 3KB BitMatrixTest.cpp 3KB FinderPattern.cpp 3KB PerspectiveTransformTest.cpp 2KB InvertedLuminanceSource.cpp 2KB ByQuadrantReader.cpp 2KB UPCAReader.cpp 2KB QRCodeMultiReader.cpp 2KB BitSource.cpp 2KB BinaryBitmap.cpp 2KB AztecReader.cpp 2KB EAN8Reader.cpp 2KB ModeTest.cpp 2KB MatSource.cpp 2KB ErrorCorrectionLevel.cpp 2KB AlignmentPattern.cpp 2KB BitSourceTest.cpp 2KB QRCodeReader.cpp 2KB AztecDetectorResult.cpp 2KB Result.cpp 2KB共 258 条
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