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Open Source Computer Vision Library
https://opencv.org/
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205 lines
8.4 KiB
205 lines
8.4 KiB
# ---------------------------------------------------------------------------- |
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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 |
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OPTIONAL opencv_core |
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opencv_imgproc opencv_ml opencv_highgui |
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opencv_objdetect opencv_flann opencv_features2d |
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opencv_photo opencv_video opencv_videostab |
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opencv_calib opencv_calib3d |
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opencv_stitching opencv_superres |
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opencv_nonfree |
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) |
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# set the path to the C++ header parser |
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set(HDR_PARSER_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../python/src2) |
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# set mex compiler options |
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prepend("-I" MEX_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include) |
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prepend("-L" MEX_LIB_DIR ${CMAKE_BINARY_DIR}/lib) |
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prepend("-l" MEX_LIBS opencv_core) |
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set(MEX_OPTS -largeArrayDims) |
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if (ENABLE_SOLUTION_FOLDERS) |
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set_target_properties(${the_module} PROPERTIES FOLDER "Matlab bindings") |
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endif() |
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if (BUILD_TESTS) |
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add_subdirectory(test) |
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endif() |
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# ---------------------------------------------------------------------------- |
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# Configure time components |
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# ---------------------------------------------------------------------------- |
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set(MATLAB_DEPS ${OPENCV_MODULE_${the_module}_REQ_DEPS} ${OPENCV_MODULE_${the_module}_OPT_DEPS}) |
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foreach(opencv_module ${MATLAB_DEPS}) |
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if (HAVE_${opencv_module}) |
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string(REPLACE "opencv_" "" module ${opencv_module}) |
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list(APPEND opencv_hdrs "${OPENCV_MODULE_${opencv_module}_LOCATION}/include/opencv2/${module}.hpp") |
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list(APPEND ${the_module}_ACTUAL_DEPS ${opencv_module}) |
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prepend("-I" MEX_INCLUDE_DIRS "${OPENCV_MODULE_${opencv_module}_LOCATION}/include") |
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if (NOT ${module} STREQUAL "core") |
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prepend("-l" MEX_LIBS ${opencv_module}) |
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endif() |
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endif() |
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endforeach() |
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# Configure checks |
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# Check to see whether the generator and the mex compiler are working. |
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# The checks currently test: |
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# - whether the python generator can be found |
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# - whether the python generator correctly outputs a file for a definition |
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# - whether the mex compiler can find the required headers |
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# - whether the mex compiler can compile a trivial definition |
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if (NOT MEX_WORKS) |
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# attempt to generate a gateway for a function |
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message(STATUS "Trying to generate Matlab code") |
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execute_process( |
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COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_SOURCE_DIR}/test/trigger.cpp |
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COMMAND ${PYTHON_EXECUTABLE} |
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${CMAKE_CURRENT_SOURCE_DIR}/generator/gen_matlab.py ${HDR_PARSER_PATH} |
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${CMAKE_CURRENT_SOURCE_DIR}/test/test_generator.hpp ${CMAKE_BINARY_DIR}/junk |
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ERROR_VARIABLE GEN_ERROR |
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OUTPUT_QUIET |
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) |
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if (GEN_ERROR) |
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message(${GEN_ERROR}) |
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message(STATUS "Error generating Matlab code. Disabling Matlab bindings...") |
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return() |
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else() |
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message(STATUS "Trying to generate Matlab code - OK") |
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endif() |
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# attempt to compile a gateway using mex |
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message(STATUS "Trying to compile mex file") |
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execute_process( |
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COMMAND ${MATLAB_MEX_SCRIPT} ${MEX_OPTS} ${MEX_INCLUDE_DIRS} |
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${CMAKE_CURRENT_SOURCE_DIR}/test/test_compiler.cpp |
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/junk |
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ERROR_VARIABLE MEX_ERROR |
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OUTPUT_QUIET |
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) |
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if (MEX_ERROR) |
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message(${MEX_ERROR}) |
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message(STATUS "Error compiling mex file. Disabling Matlab bindings...") |
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return() |
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else() |
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message(STATUS "Trying to compile mex file - OK") |
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endif() |
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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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set(MEX_WORKS True CACHE BOOL ADVANCED) |
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# ---------------------------------------------------------------------------- |
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# Build time components |
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# ---------------------------------------------------------------------------- |
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# proxies |
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# these proxies are used to trigger the add_custom_commands |
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# (which do the real work) only when they're outdated |
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set(GENERATE_PROXY ${CMAKE_CURRENT_BINARY_DIR}/generate.proxy) |
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set(COMPILE_PROXY ${CMAKE_CURRENT_BINARY_DIR}/compile.proxy) |
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file(REMOVE ${GENERATE_PROXY} ${COMPILE_PROXY}) |
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# generate |
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# call the python executable to generate the Matlab gateways |
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add_custom_command( |
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OUTPUT ${GENERATE_PROXY} |
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COMMAND ${PYTHON_EXECUTABLE} |
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${CMAKE_CURRENT_SOURCE_DIR}/generator/gen_matlab.py ${HDR_PARSER_PATH} |
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${opencv_hdrs} ${CMAKE_CURRENT_BINARY_DIR} |
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COMMAND ${CMAKE_COMMAND} -E touch ${GENERATE_PROXY} |
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COMMENT "Generating matlab source files" |
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) |
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# compile |
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# call the mex compiler to compile the gateways |
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# because we don't know the source files at configure-time, this |
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# has to be executed in a separate script in cmake's script processing mode |
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add_custom_command( |
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OUTPUT ${COMPILE_PROXY} |
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COMMAND ${CMAKE_COMMAND} -DMATLAB_MEX_SCRIPT=${MATLAB_MEX_SCRIPT} |
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-DMATLAB_MEXEXT=${MATLAB_MEXEXT} |
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-DMEX_OPTS=${MEX_OPTS} |
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-DMEX_INCLUDE_DIRS="${MEX_INCLUDE_DIRS}" |
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-DMEX_LIB_DIR=${MEX_LIB_DIR} |
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-DMEX_LIBS="${MEX_LIBS}" |
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-P ${CMAKE_CURRENT_SOURCE_DIR}/compile.cmake |
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COMMAND ${CMAKE_COMMAND} -E touch ${COMPILE_PROXY} |
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COMMENT "Compiling Matlab source files. This could take a while..." |
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) |
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# targets |
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# opencv_matlab_sources --> opencv_matlab |
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add_custom_target(${the_module}_sources ALL DEPENDS ${GENERATE_PROXY}) |
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add_custom_target(${the_module} ALL DEPENDS ${COMPILE_PROXY}) |
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add_dependencies(${the_module} ${the_module}_sources ${${the_module}_ACTUAL_DEPS}) |
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# ---------------------------------------------------------------------------- |
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# Install time components |
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# ---------------------------------------------------------------------------- |
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# NOTE: Trailing slashes on the DIRECTORY paths are important! |
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# TODO: What needs to be done with rpath???? |
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file(GLOB MATLAB_FUNCTIONS "${CMAKE_CURRENT_BINARY_DIR}/src/*.${MATLAB_MEXEXT}") |
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file(GLOB MATLAB_CLASSES "${CMAKE_CURRENT_BINARY_DIR}/+cv/*.m") |
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file(GLOB MATLAB_PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/src/private/*.${MATLAB_MEXEXT}") |
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install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/+cv/ |
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DESTINATION ${CMAKE_INSTALL_PREFIX}/matlab/+cv |
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FILES_MATCHING PATTERN "*.${MATLAB_MEXEXT}" |
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) |
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install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/+cv/ |
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DESTINATION ${CMAKE_INSTALL_PREFIX}/matlab/+cv |
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FILES_MATCHING PATTERN "*.m" |
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) |
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install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/+cv/private/ |
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DESTINATION ${CMAKE_INSTALL_PREFIX}/matlab/+cv/private |
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FILES_MATCHING PATTERN "*.${MATLAB_MEXEXT}" |
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) |
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install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/ |
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DESTINATION ${CMAKE_INSTALL_PREFIX}/matlab |
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FILES_MATCHING PATTERN "cv.m" |
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)
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