CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(ORB_SLAM3_drt)

IF(NOT CMAKE_BUILD_TYPE)
  SET(CMAKE_BUILD_TYPE Release)
ENDIF()

MESSAGE("Build type: " ${CMAKE_BUILD_TYPE})

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}  -Wall   -O3")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall   -O3")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -march=native")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -march=native")


# Check C++11 or C++14 support
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++14" COMPILER_SUPPORTS_CXX14)
if(COMPILER_SUPPORTS_CXX14)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
   add_definitions(-DCOMPILEDWITHC14)
   message(STATUS "Using flag -std=c++14.")
elseif(COMPILER_SUPPORTS_CXX11)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
   add_definitions(-DCOMPILEDWITHC11)
   message(STATUS "Using flag -std=c++11.")
else()
   message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()

add_definitions(-w)
LIST(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake_modules)

find_package(OpenCV 3.2)
if(NOT OpenCV_FOUND)
   message(FATAL_ERROR "OpenCV > 4.4 not found.")
endif()

MESSAGE("OPENCV VERSION:")
MESSAGE(${OpenCV_VERSION})

find_package(Eigen3 REQUIRED)
find_package(Pangolin REQUIRED)
find_package(realsense2)

# Ceres
find_package(Ceres REQUIRED)
include_directories(${CERES_INCLUDE_DIRS})

# TBB
find_package(TBB REQUIRED)
message(STATUS "Found TBB ${TBB_VERSION_MAJOR}.${TBB_VERSION_MINOR} (interface version ${TBB_INTERFACE_VERSION}) headers in: ${TBB_INCLUDE_DIRS}")
if (TBB_INTERFACE_VERSION LESS 11004)
    # enable global_control header for earlier TBB versions (Ubuntu 16.04, 18.04)
    add_definitions(-DTBB_PREVIEW_GLOBAL_CONTROL)
endif ()

include_directories(
${PROJECT_SOURCE_DIR}
${PROJECT_SOURCE_DIR}/include
${PROJECT_SOURCE_DIR}/include/util
${PROJECT_SOURCE_DIR}/include/CameraModels
${PROJECT_SOURCE_DIR}/Thirdparty/Sophus
${EIGEN3_INCLUDE_DIR}
${Pangolin_INCLUDE_DIRS}
${CERES_INCLUDE_DIRS}
${TBB_INCLUDE_DIR}
)

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/lib)

add_library(${PROJECT_NAME} SHARED
src/System.cc
src/Tracking.cc
src/LocalMapping.cc
src/LoopClosing.cc
src/ORBextractor.cc
src/ORBmatcher.cc
src/FrameDrawer.cc
src/Converter.cc
src/MapPoint.cc
src/KeyFrame.cc
src/Atlas.cc
src/Map.cc
src/MapDrawer.cc
src/Optimizer.cc
src/Frame.cc
src/KeyFrameDatabase.cc
src/Sim3Solver.cc
src/Viewer.cc
src/ImuTypes.cc
src/G2oTypes.cc
src/CameraModels/Pinhole.cpp
src/CameraModels/KannalaBrandt8.cpp
src/OptimizableTypes.cpp
src/MLPnPsolver.cpp
src/GeometricTools.cc
src/TwoViewReconstruction.cc
src/Config.cc
src/Settings.cc
src/ImuInitializer.cc
src/polynomial.cc
include/System.h
include/Tracking.h
include/LocalMapping.h
include/LoopClosing.h
include/ORBextractor.h
include/ORBmatcher.h
include/FrameDrawer.h
include/Converter.h
include/MapPoint.h
include/KeyFrame.h
include/Atlas.h
include/Map.h
include/MapDrawer.h
include/Optimizer.h
include/Frame.h
include/KeyFrameDatabase.h
include/Sim3Solver.h
include/Viewer.h
include/ImuTypes.h
include/G2oTypes.h
include/CameraModels/GeometricCamera.h
include/CameraModels/Pinhole.h
include/CameraModels/KannalaBrandt8.h
include/OptimizableTypes.h
include/MLPnPsolver.h
include/GeometricTools.h
include/TwoViewReconstruction.h
include/SerializationUtils.h
include/Config.h
include/Settings.h
include/Gyro_bias_factor.hpp
include/Translation_factor.hpp
include/ImuInitializer.h
include/util/eigen_defs.h 
include/util/svd.h 
include/imu_ceres.h 
include/methods.h 
include/polynomial.h)

add_subdirectory(Thirdparty/g2o)

target_link_libraries(${PROJECT_NAME}
${OpenCV_LIBS}
${EIGEN3_LIBS}
${Pangolin_LIBRARIES}
${CERES_LIBRARIES}
${PROJECT_SOURCE_DIR}/Thirdparty/DBoW2/lib/libDBoW2.so
${PROJECT_SOURCE_DIR}/Thirdparty/g2o/lib/libg2o.so
${TBB_LIBRARIES}
-lboost_serialization
-lcrypto
)

# If RealSense SDK is found the library is added and its examples compiled
if(realsense2_FOUND)
    include_directories(${PROJECT_NAME}
    ${realsense_INCLUDE_DIR}
    )
    target_link_libraries(${PROJECT_NAME}
    ${realsense2_LIBRARY}
    )
endif()


# Build examples
#Stereo Inertial examples
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/Examples/Stereo-Inertial)

add_executable(stereo_inertial_euroc
        Examples/Stereo-Inertial/stereo_inertial_euroc.cc)
target_link_libraries(stereo_inertial_euroc ${PROJECT_NAME})