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3rdparty/opencv-4.5.4/cmake/OpenCVDetectVTK.cmake 2.84 KB
f4334277   Hu Chunming   提交3rdparty
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  if(NOT VTK_FOUND)
    find_package(VTK QUIET NAMES vtk VTK)
    if(VTK_FOUND)
      if(NOT (VTK_VERSION VERSION_LESS "9.0.0") AND (VTK_VERSION VERSION_LESS "10.0.0")) # VTK 9.x
        find_package(VTK 9 QUIET NAMES vtk COMPONENTS
                FiltersExtraction
                FiltersSources
                FiltersTexture
                IOExport
                IOGeometry
                IOPLY
                InteractionStyle
                RenderingCore
                RenderingLOD
                RenderingOpenGL2
                NO_MODULE)
      elseif(VTK_VERSION VERSION_GREATER "5") # VTK 6.x components
        find_package(VTK QUIET COMPONENTS vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport NO_MODULE)
        IF(VTK_FOUND)
          IF(VTK_RENDERING_BACKEND) #in vtk 7, the rendering backend is exported as a var.
            find_package(VTK QUIET COMPONENTS vtkRendering${VTK_RENDERING_BACKEND} vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport vtkIOGeometry NO_MODULE)
          ELSE(VTK_RENDERING_BACKEND)
            find_package(VTK QUIET COMPONENTS vtkRenderingOpenGL vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport NO_MODULE)
          ENDIF(VTK_RENDERING_BACKEND)
        ENDIF(VTK_FOUND)
      elseif(VTK_VERSION VERSION_EQUAL "5") # VTK 5.x components
        find_package(VTK QUIET COMPONENTS vtkCommon NO_MODULE)
      else()
        set(VTK_FOUND FALSE)
      endif()
    endif()
  endif()
  
  if(NOT VTK_FOUND)
    set(HAVE_VTK OFF)
    message(STATUS "VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file")
    return()
  endif()
  
  # Don't support earlier VTKs
  if(VTK_VERSION VERSION_LESS "5.8.0")
    message(STATUS "VTK support is disabled. VTK ver. 5.8.0 is minimum required, but found VTK ver. ${VTK_VERSION}")
    return()
  endif()
  
  # Different Qt versions can't be linked together
  if((HAVE_QT AND VTK_USE_QT)
      AND NOT DEFINED FORCE_VTK  # deprecated
      AND NOT DEFINED OPENCV_FORCE_VTK
  )
    message(STATUS "VTK support is disabled. Possible incompatible combination: OpenCV+Qt, and VTK ver.${VTK_VERSION} with Qt")
    message(STATUS "If it is known that VTK was compiled without Qt4, please define '-DOPENCV_FORCE_VTK=TRUE' flag in CMake")
    return()
  endif()
  
  try_compile(VTK_COMPILE_STATUS
      "${OpenCV_BINARY_DIR}"
      "${OpenCV_SOURCE_DIR}/cmake/checks/vtk_test.cpp"
      CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${VTK_INCLUDE_DIRS}"
      LINK_LIBRARIES ${VTK_LIBRARIES}
      OUTPUT_VARIABLE OUTPUT
  )
  
  if(NOT ${VTK_COMPILE_STATUS})
    message(STATUS "VTK support is disabled. Compilation of the sample code has failed.")
    return()
  endif()
  
  set(HAVE_VTK ON)
  if (VTK_VERSION VERSION_LESS "8.90.0")
    message(STATUS "Found VTK ${VTK_VERSION} (${VTK_USE_FILE})")
  else()
    message(STATUS "Found VTK ${VTK_VERSION}")
  endif()