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zxing/cpp/README

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Many changes to the C++ port. - Refactoring: - All the files are now in a zxing folder, - Changed the namespaces so that everything is either in zxing or zxing::qrcode. - Moved most function implementations from the headers to source files. - Ported the new design from the Java code with LuminanceSource, BinaryBitmap, Binarizer, GlobalHistogramBinarizer and LocalBlockBinarizer. - Fixed two rare segmentation faults: one in GridSampler::checkAndNudgePoints, and one in ReedSolomonDecoder::decode. These would simply cause ArrayIndexOutOfBoundsExceptions in Java, but have to be checked explicitly in C++. - With help from Erno Mäkinen, used std::vector instead of ArrayRef in many places, as ArrayRef causes problems on Symbian phones. - Added scons build files. - Added a test application using ImageMagick. - More small changes. git-svn-id: https://zxing.googlecode.com/svn/trunk@1092 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-11-01 09:30:30 -08:00
This is only tested on Linux. With some trouble, it might work on Windows as well.
Tweak svn/git ignores Add OS X libzxing.a project Include a copy of scons-local for cpp git-svn-id: https://zxing.googlecode.com/svn/trunk@1549 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2010-08-19 17:41:26 -07:00
The build process uses scons, a build tool written in python. You'll
need to have python installed, but scons installation is optional: a
runtime copy of scons (called scons-local) is included with zxing. To
use the included copy of scons-local, where the instructons says enter
"scons", enter "python scons/scons.py" instead. For example, to build
the library only, you'd use "python scons/scons.py lib" instead of
"scons lib".
Many changes to the C++ port. - Refactoring: - All the files are now in a zxing folder, - Changed the namespaces so that everything is either in zxing or zxing::qrcode. - Moved most function implementations from the headers to source files. - Ported the new design from the Java code with LuminanceSource, BinaryBitmap, Binarizer, GlobalHistogramBinarizer and LocalBlockBinarizer. - Fixed two rare segmentation faults: one in GridSampler::checkAndNudgePoints, and one in ReedSolomonDecoder::decode. These would simply cause ArrayIndexOutOfBoundsExceptions in Java, but have to be checked explicitly in C++. - With help from Erno Mäkinen, used std::vector instead of ArrayRef in many places, as ArrayRef causes problems on Symbian phones. - Added scons build files. - Added a test application using ImageMagick. - More small changes. git-svn-id: https://zxing.googlecode.com/svn/trunk@1092 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-11-01 09:30:30 -08:00
To build the library only:
Tweak svn/git ignores Add OS X libzxing.a project Include a copy of scons-local for cpp git-svn-id: https://zxing.googlecode.com/svn/trunk@1549 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2010-08-19 17:41:26 -07:00
- Run "scons lib" in this folder (cpp)
Many changes to the C++ port. - Refactoring: - All the files are now in a zxing folder, - Changed the namespaces so that everything is either in zxing or zxing::qrcode. - Moved most function implementations from the headers to source files. - Ported the new design from the Java code with LuminanceSource, BinaryBitmap, Binarizer, GlobalHistogramBinarizer and LocalBlockBinarizer. - Fixed two rare segmentation faults: one in GridSampler::checkAndNudgePoints, and one in ReedSolomonDecoder::decode. These would simply cause ArrayIndexOutOfBoundsExceptions in Java, but have to be checked explicitly in C++. - With help from Erno Mäkinen, used std::vector instead of ArrayRef in many places, as ArrayRef causes problems on Symbian phones. - Added scons build files. - Added a test application using ImageMagick. - More small changes. git-svn-id: https://zxing.googlecode.com/svn/trunk@1092 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-11-01 09:30:30 -08:00
To build the unit tests:
- Install cppunit (libcppunit-dev on Ubuntu)
- Run "scons tests"
- Run "testrunner" in the build folder
To build the test utility:
- Install Magick++ (libmagick++-dev on Ubuntu)
- Run "scons zxing"
C++ port: - Added experimental QR edge detector. - Modified pattern finder tolerance levels, as in the Java code. - Adjusted the local block binarizer slightly. - Added a simple example application. - Modified MagickBitmapSource to compute the luminance in the same way as the Java BufferedImageLuminanceSource. git-svn-id: https://zxing.googlecode.com/svn/trunk@1144 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-12-08 13:16:43 -08:00
An simple example application is now also included, but no compilation instructions yet.
Many changes to the C++ port. - Refactoring: - All the files are now in a zxing folder, - Changed the namespaces so that everything is either in zxing or zxing::qrcode. - Moved most function implementations from the headers to source files. - Ported the new design from the Java code with LuminanceSource, BinaryBitmap, Binarizer, GlobalHistogramBinarizer and LocalBlockBinarizer. - Fixed two rare segmentation faults: one in GridSampler::checkAndNudgePoints, and one in ReedSolomonDecoder::decode. These would simply cause ArrayIndexOutOfBoundsExceptions in Java, but have to be checked explicitly in C++. - With help from Erno Mäkinen, used std::vector instead of ArrayRef in many places, as ArrayRef causes problems on Symbian phones. - Added scons build files. - Added a test application using ImageMagick. - More small changes. git-svn-id: https://zxing.googlecode.com/svn/trunk@1092 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-11-01 09:30:30 -08:00
To clean:
- Run "scons -c all"
To use the test utility:
- Basic usage:
- "mkdir testout"
- "zxing testout *.jpg > report.html"
- With the zxing test data, from the cpp folder:
- "mkdir testout"
- "build/zxing testout ../core/test/data/blackbox/qrcode-*/* > report.html"
To format the code:
- Install astyle
- Run ./format
C++ port: - Added experimental QR edge detector. - Modified pattern finder tolerance levels, as in the Java code. - Adjusted the local block binarizer slightly. - Added a simple example application. - Modified MagickBitmapSource to compute the luminance in the same way as the Java BufferedImageLuminanceSource. git-svn-id: https://zxing.googlecode.com/svn/trunk@1144 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2009-12-08 13:16:43 -08:00
To profile the code (very useful to optimize the code):
- Install valgrind
- "valgrind --tool=callgrind build/zxing - path/to/test/data/*.jpg > report.html"
- kcachegrind is a very nice tool to analize the output
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