CMakeLists.txt

cmake_minimum_required(VERSION 3.19 FATAL_ERROR)

project(VET VERSION 1.0.0 LANGUAGES C CXX CUDA)
set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/External/saiga/cmake/")

include(helper_macros)
include(ExternalProject)
DefaultBuildType(RelWithDebInfo)
message("Build Options")

OptionsHelper(HEADLESS "Skips the viewer and other apps that require a window." OFF)
OptionsHelper(ADOP_ASAN "Adds sanitize=address compiler flag" OFF)
OptionsHelper(ADOP_TINY_EIGEN "Use saiga's tiny eigen library." ON)

if (HEADLESS)
    set(SAIGA_MODULE_OPENGL OFF)
    set(SAIGA_BUILD_GLFW OFF)
endif ()

############# Required LIBRARIES ###############

add_subdirectory(External/tensorboard_logger)
set_property(TARGET tensorboard_logger PROPERTY POSITION_INDEPENDENT_CODE ON)
PackageHelperTarget(tensorboard_logger TBL_FOUND)

# Saiga
set(SAIGA_BUILD_SAMPLES OFF)
set(SAIGA_BUILD_TESTS OFF)
#set(SAIGA_BUILD_SHARED ON)
set(SAIGA_MODULE_VULKAN OFF)
set(SAIGA_MODULE_VISION OFF)
#set(SAIGA_MODULE_CUDA OFF)
if (HEADLESS)
    set(SAIGA_MODULE_OPENGL OFF)
    set(SAIGA_BUILD_GLFW OFF)
    message("HEADLESS MODE")
endif ()
set(SAIGA_NO_INSTALL ON)
set(SAIGA_USE_SUBMODULES ON)
set(SAIGA_WITH_FFMPEG OFF)
set(SAIGA_WITH_FREETYPE OFF)
set(SAIGA_WITH_YAMLCPP OFF)
set(SAIGA_WITH_OPENAL OFF)
set(SAIGA_WITH_OPENMESH OFF)
set(SAIGA_WITH_OPENVR OFF)
set(SAIGA_WITH_G2O OFF)
set(SAIGA_WITH_CHOLMOD OFF)
set(SAIGA_WITH_OPENNI OFF)
set(SAIGA_WITH_K4A OFF)
set(SAIGA_WITH_TINY_EIGEN ON)

add_subdirectory(External/saiga)

PackageHelperTarget(saiga_core SAIGA_FOUND)
if (NOT HEADLESS)
    PackageHelperTarget(saiga_opengl SAIGA_FOUND)
endif ()
#PackageHelperTarget(saiga_opengl SAIGA_FOUND)
PackageHelperTarget(saiga_cuda SAIGA_FOUND)


# Torch
find_package(Torch REQUIRED)
PackageHelperTarget(torch TORCH_FOUND)

#replace flags
set(CMAKE_EXE_LINKER_FLAGS "-Wl,--as-needed")


include_directories(.)
include_directories(${PACKAGE_INCLUDES})

############# COMPILER FLAGS ###############
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -pthread")

if (MSVC)
    #multiprocessor compilation for visual studio
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
else ()
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror=return-type")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-strict-aliasing")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-sign-compare")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-backtrace-limit=0")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-psabi")
endif ()


message(STATUS CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
message(STATUS CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS})

set(LIBS ${LIBS} ${LIB_TARGETS} "${TORCH_LIBRARIES}")

############# C++ Standard and Filesystem stuff ###############

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

if (MSVC)
    #dll has all symbols, to avoid __declspecs everywhere
    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
    include(GenerateExportHeader)
endif ()
############# SOURCE ###############

add_subdirectory(src)


if (CMAKE_SYSTEM_NAME MATCHES "Linux|Darwin")
    set(NEAT_CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH})
    string(REPLACE ";" "|" CMAKE_PREFIX_PATH_ALT_SEP "${NEAT_CMAKE_PREFIX_PATH}")
    if (CMAKE_GENERATOR MATCHES "Ninja")
        ExternalProject_Add(NeAT
                SOURCE_DIR ../External/NeAT
                PREFIX ${CMAKE_CURRENT_BINARY_DIR}/NeAT
                LIST_SEPARATOR |
                CMAKE_ARGS -DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH_ALT_SEP}
                INSTALL_COMMAND echo "Skipping install step.")
    else ()
        ExternalProject_Add(NeAT
                SOURCE_DIR ../External/NeAT
                PREFIX ${CMAKE_CURRENT_BINARY_DIR}/NeAT
                LIST_SEPARATOR |
                CMAKE_ARGS -DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH_ALT_SEP}
                BUILD_COMMAND make -j20
                INSTALL_COMMAND echo "Skipping install step.")
    endif ()
endif ()