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127 lines
5.0 KiB
CMake
127 lines
5.0 KiB
CMake
# ----------------------------------------------------------------------------
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# CMake file for Matlab/Octave support
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#
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# Matlab code generation and compilation is broken down into two distinct
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# stages: configure time and build time. The idea is that we want to give
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# the user reasonable guarantees that once they type 'make', wrapper
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# generation is unlikely to fail. Therefore we run a series of tests at
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# configure time to check the working status of the core components.
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#
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# Configure Time
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# During configure time, the script attempts to ascertain whether the
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# generator and mex compiler are working for a given architecture.
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# Currently this involves:
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# 1) Generating a simple CV_EXPORTS_W symbol and checking whether a file
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# of the symbol name is generated
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# 2) Compiling a simple mex gateway to check that Bridge.hpp and mex.h
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# can be found, and that a file with the mexext is produced
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#
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# Build Time
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# If the configure time tests pass, then we assume Matlab wrapper generation
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# will not fail during build time. We simply glob all of the symbols in
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# the OpenCV module headers, generate intermediate .cpp files, then compile
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# them with mex.
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# ----------------------------------------------------------------------------
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# PREPEND
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# Given a list of strings IN and a TOKEN, prepend the token to each string
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# and append to OUT. This is used for passing command line "-I", "-L" and "-l"
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# arguments to mex. e.g.
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# prepend("-I" OUT /path/to/include/dir) --> -I/path/to/include/dir
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macro(PREPEND TOKEN OUT IN)
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foreach(VAR ${IN})
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list(APPEND ${OUT} "${TOKEN}${VAR}")
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endforeach()
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endmacro()
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# make sure we're on a supported architecture with Matlab and python installed
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if (IOS OR ANDROID OR NOT MATLAB_FOUND OR NOT PYTHONLIBS_FOUND)
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ocv_module_disable(matlab)
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return()
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endif()
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set(the_description "The Matlab/Octave bindings")
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ocv_add_module(matlab BINDINGS opencv_core opencv_imgproc
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OPTIONAL opencv_objdetect opencv_features2d opencv_video
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opencv_highgui opencv_ml opencv_calib3d opencv_photo
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opencv_nonfree opencv_calib)
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set(HDR_PARSER_PATH ${OPENCV_MODULE_opencv_python_LOCATION}/src2)
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# get the include path of the Bridge
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prepend("-I" MEX_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR}/include)
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# ----------------------------------------------------------------------------
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# Configure time components
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# ----------------------------------------------------------------------------
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message("-- Trying to generate Matlab code")
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execute_process(
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COMMAND ${PYTHON_EXECUTABLE}
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${CMAKE_CURRENT_SOURCE_DIR}/generator/gen_matlab_caller.py ${HDR_PARSER_PATH}
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${CMAKE_CURRENT_SOURCE_DIR}/test/test_generator.hpp ${CMAKE_CURRENT_BINARY_DIR}
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ERROR_VARIABLE GEN_ERROR
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OUTPUT_QUIET
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)
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if (GEN_ERROR)
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message(${GEN_ERROR})
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message("-- Error generating Matlab code. Disabling Matlab bindings...")
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return()
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else()
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message("-- Trying to generate Matlab code - OK")
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endif()
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# attempt to compile the file using mex
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message("-- Trying to compile mex file")
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execute_process(
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COMMAND ${MATLAB_MEX_SCRIPT} ${MEX_INCLUDES}
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${CMAKE_CURRENT_SOURCE_DIR}/test/test_compiler.cpp
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/src
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ERROR_VARIABLE MEX_ERROR
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OUTPUT_QUIET
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)
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if (MEX_ERROR)
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message(${MEX_ERROR})
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message("-- Error compiling mex file. Disabling Matlab bindings...")
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return()
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else()
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message("-- Trying to compile mex file - OK")
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endif()
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# if we make it here, mex works!
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set_property(GLOBAL PROPERTY MEX_WORKS TRUE)
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# ----------------------------------------------------------------------------
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# Build time components
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# ----------------------------------------------------------------------------
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string(REPLACE "opencv_" "" OPENCV_MATLAB_MODULES "${OPENCV_MODULE_${the_module}_REQ_DEPS};
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${OPENCV_MODULE_${the_module}_OPT_DEPS}")
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foreach(module ${OPENCV_MATLAB_MODULES})
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if (HAVE_opencv_${module})
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list(APPEND opencv_hdrs "${OPENCV_MODULE_opencv_${module}_LOCATION}/include/opencv2/${module}.hpp")
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prepend("-I" MEX_INCLUDES "${OPENCV_MODULE_opencv_${module}_LOCATION}/include")
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endif()
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endforeach()
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# synthesise the matlab sources
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add_custom_target(opencv_matlab_sources ALL
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COMMAND ${PYTHON_EXECUTABLE}
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${CMAKE_CURRENT_SOURCE_DIR}/generator/gen_matlab_caller.py ${HDR_PARSER_PATH}
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${opencv_hdrs} ${CMAKE_CURRENT_BINARY_DIR}
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)
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# get the matlab sources
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file(GLOB SOURCE_FILES "${CMAKE_CURRENT_BINARY_DIR}/src/*.cpp")
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foreach(SOURCE_FILE ${SOURCE_FILES})
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get_filename_component(FILENAME ${SOURCE_FILE} NAME_WE)
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# compile the source file using mex
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add_custom_target("opencv_matlab_${FILENAME}" ALL
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COMMAND "/usr/bin/true"
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#COMMAND ${MATLAB_MEX_SCRIPT} ${MEX_INCLUDES}
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# ${SOURCE_FILE}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/src
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DEPENDS opencv_matlab_sources
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)
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endforeach()
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