CMakeLists.txt

# ##############################################################################
cmake_minimum_required(VERSION 3.20)
project(FloatTetwild)
# ##############################################################################

# Detects whether this is a top-level project
get_directory_property(HAS_PARENT PARENT_DIRECTORY)
if(HAS_PARENT)
    set(FLOAT_TETWILD_TOPLEVEL_PROJECT OFF)
else()
    set(FLOAT_TETWILD_TOPLEVEL_PROJECT ON)
endif()

if(INPUT_THIRD_PARTY_DIR)
    set(FLOAT_TETWILD_EXTERNAL
      ${CMAKE_CURRENT_SOURCE_DIR}/${INPUT_THIRD_PARTY_DIR}/)
else()
    set(FLOAT_TETWILD_EXTERNAL ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/)
endif()

list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Color output
include(UseColors)

# Prepend function
include(PrependCurrentPath)

# FloatTetwild utils
include(FloatTetwildUtils)

# Extra warnings
include(Warnings)

# Sort projects inside the solution
set_property(GLOBAL PROPERTY USE_FOLDERS ON)

# Generate position independent code by default
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# ##############################################################################

# FloatTetwild options
option(FLOAT_TETWILD_ENABLE_TBB "Enable TBB" ON)
option(FLOAT_TETWILD_USE_FLOAT "Use floats instead of double" OFF)
option(FLOAT_TETWILD_WITH_SANITIZERS "Use sanitizers" OFF)
option(FLOAT_TETWILD_WITH_EXACT_ENVELOPE "Use exact envelope" OFF)

# Sanitizer options
option(SANITIZE_ADDRESS "Sanitize Address" OFF)
option(SANITIZE_MEMORY "Sanitize Memory" OFF)
option(SANITIZE_THREAD "Sanitize Thread" OFF)
option(SANITIZE_UNDEFINED "Sanitize Undefined" OFF)

# Options for libigl modules
option(LIBIGL_USE_STATIC_LIBRARY "Use libigl as static library" OFF)
option(LIBIGL_WITH_COMISO "Use CoMiso" OFF)
option(LIBIGL_WITH_EMBREE "Use Embree" OFF)
option(LIBIGL_WITH_OPENGL "Use OpenGL" OFF)
option(LIBIGL_WITH_OPENGL_GLFW "Use GLFW" OFF)
option(LIBIGL_WITH_OPENGL_GLFW_IMGUI "Use ImGui" OFF)
option(LIBIGL_WITH_PNG "Use PNG" OFF)
option(LIBIGL_WITH_TETGEN "Use Tetgen" OFF)
option(LIBIGL_WITH_TRIANGLE "Use Triangle" OFF)
option(LIBIGL_WITH_PREDICATES "Use exact predicates" ON)
option(LIBIGL_WITH_XML "Use XML" OFF)

# Sanitizers
if(FLOAT_TETWILD_WITH_SANITIZERS)
    list(APPEND CMAKE_MODULE_PATH
       ${FLOAT_TETWILD_EXTERNAL}/sanitizers-cmake/cmake)
endif()

# Setup dependencies
include(FloatTetwildDependencies)
igl_include(predicates)

# ##############################################################################
# FloatTetwild library
# ##############################################################################

find_package(GMPfTetWild)
if(NOT ${GMP_FOUND})
    message(FATAL_ERROR "Cannot find GMP")
endif()

# add_library() can only be called without any source since CMake 3.11 ...
add_library(${PROJECT_NAME} src/Logger.cpp)

# Public include directory for FloatTetwild
target_include_directories(${PROJECT_NAME} PUBLIC ${PROJECT_BINARY_DIR}/include)

# Extra warnings
target_link_libraries(${PROJECT_NAME} PRIVATE warnings::all)

# Use C++14 (minimum for modern CMake practices)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_14)
# if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
# target_compile_options(${PROJECT_NAME} PUBLIC "/Zc:__cplusplus") endif()
# target_compile_definitions(${PROJECT_NAME} PUBLIC
# -DEIGEN_STACK_ALLOCATION_LIMIT=8388608)

if(FLOAT_TETWILD_WITH_SANITIZERS)
    add_sanitizers(${PROJECT_NAME})
endif()

# ##############################################################################
# Required libraries
# ##############################################################################

if(FLOAT_TETWILD_USE_FLOAT)
    target_compile_definitions(${PROJECT_NAME} PUBLIC -DFLOAT_TETWILD_USE_FLOAT)
endif()

target_include_directories(${PROJECT_NAME} SYSTEM PUBLIC ${GMP_INCLUDE_DIRS})

target_link_libraries(
  ${PROJECT_NAME}
  PUBLIC igl::core
         igl::predicates
         geogram::geogram
         spdlog::spdlog
         Threads::Threads
         # fast_winding_number
         json
         ${GMP_LIBRARIES}
         # ${MPFR_LIBRARIES}
)
if(FLOAT_TETWILD_ENABLE_TBB)
    target_link_libraries(${PROJECT_NAME} PUBLIC TBB::tbb)
    target_compile_definitions(${PROJECT_NAME} PUBLIC FLOAT_TETWILD_USE_TBB)
endif()

if(FLOAT_TETWILD_WITH_EXACT_ENVELOPE)
    target_link_libraries(${PROJECT_NAME} PUBLIC FastEnvelope)
    target_compile_definitions(${PROJECT_NAME} PUBLIC NEW_ENVELOPE)
endif()

# ##############################################################################
# FloatTetwild binary
# ##############################################################################

# Main executable
if(FLOAT_TETWILD_TOPLEVEL_PROJECT)
    add_executable(${PROJECT_NAME}_bin src/main.cpp)
    target_compile_features(${PROJECT_NAME}_bin PUBLIC cxx_std_14)

    target_link_libraries(${PROJECT_NAME}_bin PUBLIC ${PROJECT_NAME} CLI11::CLI11
                                                   warnings::all)

    if(TARGET igl::tetgen)
        target_link_libraries(${PROJECT_NAME} PUBLIC igl::tetgen)
        target_compile_definitions(${PROJECT_NAME} PUBLIC -DLIBIGL_WITH_TETGEN)
    endif()

    if(FLOAT_TETWILD_WITH_SANITIZERS)
        add_sanitizers(${PROJECT_NAME}_bin)
    endif()

    if(NOT (${CMAKE_VERSION} VERSION_LESS "3.6.0"))
        set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                 PROPERTY VS_STARTUP_PROJECT ${PROJECT_NAME}_bin)
    endif()
endif()

# ##############################################################################
# Subdirectories
# ##############################################################################

# Other sources
add_subdirectory(src)

# Compile extras only if this is a top-level project
if(FLOAT_TETWILD_TOPLEVEL_PROJECT)
    # Unit tests
    include(CTest)
    enable_testing()
    add_subdirectory(tests)
endif()